[International Project News] Huafu Juneng shares with you the intelligent monitoring o...
Views:    2021-01-16

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Overseas Service Newsletter

Overseas Newsletter

In the current favorable situation where Chinese manufacturing is focusing on the world, Huafu Jengeng people are determined to forge ahead, deeply cultivate product innovation, and follow the export projects of the Belt and Road Initiative, successively in Pakistan, Vietnam, Congo, Indonesia, Cuba, Turkey, Iran, Kazakhstan Countries and regions such as Stan, Ukraine, Kenya, etc., with their complete European Union CE certification, ROSH testing and other international qualifications, they serve new energy, thermal power, power transmission and transformation and other fields. Products include box transformer measurement and control protection, metal corrugated oil storage tanks and Air-cooled control cabinet products are of reliable quality and stable operation.

 

Ukraine

Large-scale solar photovoltaic power station

Large photovolt power staion

Ukraine's large-scale solar photovoltaic power station, located in Nikopol, Dnipropetrovsk Oblast, in central Ukraine, has an actual investment of 216 million euros. It will be connected to the grid on April 19, 2019. It was jointly built by Ukraine’s largest private energy company Donbass Fuel Energy Company and China Machinery Engineering Corporation, with a designed installed capacity of 200MW. In this project, Huafu Juneng supplied a total of 81 sets of integrated communication management machine, ring network switch, and data acquisition integrated model HFNA2-S box transformer measurement, control and protection integrated device, which is the automation and intelligentization of Ukrainian power stations. Management escort!

In-depth communication, win-win cooperation

Exchange and Cooperation

Huafu Juneng cooperates with Hainan Jinpan and Shenzhen Keshida Electric to confirm technical parameters such as video surveillance, Sino-Russian display switching, 485 communication of smart devices, and fiber optic ring network configuration; and keep them in the drawings. Close communication with cooperation, production plan formulation, in-plant manufacturing supervision and testing, export packaging and transportation, etc., to ensure timely delivery with Jinpan Electric. In addition, in the second phase of the 250MW power station project in Ukraine in March of this year, we had an in-depth exchange of customized solutions with Kstar's technical engineers, and cooperated with Siemens system engineers to conduct customized cooperation and joint debugging on the background monitoring communication topology design and communication protocol compatibility. , Successfully completed the pre-delivery of 98 sets of equipment for the second phase of Ukraine project and Jinpan Electric.

International standard, professional after-sales

International Aftersales

As the after-sales commissioning engineer of this foreign project, Zhou Weijie uses solid technology and rich experience in commissioning of new energy power plants to overcome objective factors such as time difference and water and soil. With the support and cooperation of on-site owners and domestic equipment manufacturers, he is safe and efficient Completed the debugging task. The real-time data of the photovoltaic area was successfully uploaded to the booster station integrated automation system, which realized the remote management and automatic monitoring of the photovoltaic area by Ukrainian users, and satisfied the operation and maintenance of the photovoltaic area of "unattended and few people" operation in the station. Management needs.

The service concept of "beginning with initiative, meaning sincerity, and finally satisfaction" has won the trust and help of many excellent users and transformer (box transformer) manufacturers! I believe that Huafu Juneng people are capable of adhering to the customer-centric service concept And have the confidence to be a better one, provide more customers with excellent products and technical services, and repay the society together!

Application of distributed photovoltaic intelligent grid-connected box (primary and se...
Views:    2021-01-16

Ningxia's first "13th Five-Year" photovoltaic poverty alleviation village-level power station

On June 25, 2019, the PV poverty alleviation village-level power station in Baoyang Village, Pengyang County was successfully connected to the grid, marking the successful integration of the full capacity of 89 power stations in the 26.68MWp PV poverty alleviation village-level project in Pengyang County. The first full-capacity grid-connected county among the first batch of photovoltaic poverty alleviation village-level power stations.

Based on its years of experience in intelligent monitoring and protection in the electric power industry, Beijing Huafu Juneng has been focusing on user-centric products and deepening product innovation. The model of the distributed poverty alleviation photovoltaic grid-connected solution for this project is HF-BSP photovoltaic grid-connected access box. The supporting model is HF-2000 distributed photovoltaic grid-connected interface devices, a total of 89 sets, adopting 4G wireless transmission mode, and the data of Huawei inverters and pole transformers of the distributed photovoltaic area are respectively connected to the Guyuan City dispatching system and The Big Data Center of the Poverty Alleviation Office has fulfilled the requirements for automation and intelligent operation and management of the entire power station.

 

Device serial port: collect data from smart devices such as inverters and watt-hour meters

Encryption device: miniature vertical encryption to ensure information security

4G wireless: real-time and stable upload via private network and public network

Data mining serial port: data analysis of the grid-connected interface of this power station

PV grid-connected box: integrated primary and secondary protection equipment access box

HF-BSP photovoltaic dedicated grid-connected access box

The HF-BSP photovoltaic grid-connected access box is a product that builds a UHV grid as the backbone grid and cooperates with the coordinated development of grids at all levels. It has the characteristics of informatization, automation, and interaction. The product complies with the National Grid Intelligent Planning Outline and the Grid-province Intelligent Planning Compilation Specification, which integrates electric energy measurement, outgoing line protection, load distribution, online monitoring, and station area management, with data encryption and remote transmission and Intelligent control function.

Huafu Juneng Finished Product Workshop

The product is suitable for installation and use on the low-voltage side of distribution transformers on urban and rural power grids, and meets the requirements of power distribution systems with a rated frequency of 50Hz and a rated current of 690A and below.

HF-2000 distributed photovoltaic grid-connected interface device

The HF-2000 distribution network integrated measurement and control terminal is an intelligent terminal device designed for the operation and management of the distribution network. It is widely used in the ring network cabinet, switching station, switch station, pole switch and other places in the distribution network. The new high-voltage switch control device combining high-speed sampling chip and 32-bit high-speed control chip can quickly and stably complete the monitoring of high-voltage switches.

HF-2000 distributed photovoltaic grid-connected interface device

The device integrates protection, measurement, control, monitoring, communication, telecontrol and other functions. It can be used as a communication relay and regional control center. It has powerful communication and information processing functions, high integration, flexible configuration, and friendly interface. Features: Widely used in radial power supply and ring network power supply systems, it can help the system identify transient faults and permanent faults in the line, can automatically eliminate the impact of transient faults on the line, and can isolate the permanent fault section to avoid long-term large-scale Area power failure will automatically restore the power supply of the non-faulty section of the grid, thus economically and practically realize distribution network automation.

[International Project News] Asia-Pacific's largest single photovoltaic plant box-...
Views:    2021-01-16

On May 27, 2019, the Vietnam Hongfeng 1A&1B photovoltaic power plant booster station, which was invested by Vietnam Construction Industry and Trade Co., Ltd. and EPC contracted by China Power Construction Group Guiyang Institute, was successfully connected to the grid as the largest single photovoltaic project in the Asia-Pacific region. The total installed capacity of 351MW is of great significance to promoting China-Vietnam cooperation and exchanges and deepening the “Belt and Road” initiative to take root in Vietnam.

The Vietnam Hongfeng Photovoltaic Power Station project is owned by PowerChina, and is jointly general contracted by Hydropower International and Guiyang Research Institute. The subcontracting procurement involves many companies in China, Vietnam, and Japan. Among them, the project design, general contracting, and power generation operations are all conducted by China Power Construction undertakes, as a 6.5MW unilateral lineup design that is rare in domestic power station projects, it carries the honor of the Chinese brand of the largest single photovoltaic power generation project in the Asia-Pacific region!

As a brand in the domestic box-transformation measurement, control and protection industry, Beijing Huafu Juneng has lived up to expectations. It efficiently fulfills the contract with Siemens. The model is HFNA2-S integrated communication management machine, ring network switch, and data acquisition. A total of 54 box-transformation monitoring and protection devices are integrated. The delivery of the set successfully realized the remote management and automated monitoring of the photovoltaic plant area of the project.

Huafu Juneng's on-site commissioning engineer Luan Junwei has rich experience in commissioning new energy power plants at home and abroad, able to quickly analyze on-site commissioning conditions and make adequate commissioning preparations, with the full support of the general contractor’s leaders and project technical engineers , And in-depth communication and cooperation with equipment manufacturers at home and abroad, successfully completed the data transmission and reception work with Mitsubishi inverters in Japan through Modbus-TCP communication mode, and cooperated with Siemens system engineers to monitor data in the background of integrated automation and the cooperation of India PPS system In terms of communication topology design and communication protocol compatibility, it has completed the test and joint debugging; with its solid professional debugging technology and friendly and warm service attitude, it has also gained recognition and friendship while working, showing that Huafu Joneng people believe in realism Truly, an engineer who pursues excellence!

[Acceptance announcement] Qingdao Yaozhi Technology Co., Ltd. oil storage tank product...
Views:    2021-01-16

According to the "Interim Measures for the Acceptance of Environmental Protection for the Completion of Construction Projects", the environmental protection acceptance of the completed oil storage tank production project of Qingdao Yaozhi Technology Co., Ltd. is announced as follows:

Project name: Environmental protection acceptance of the oil storage tank production project of Qingdao Yaozhi Technology Co., Ltd.

Construction site: North Waihuan West Road, Jiaobei Street Office, Jiaozhou City, Shandong Province

Construction unit: Qingdao Yaozhi Technology Co., Ltd.

Announcement content: acceptance report (acceptance monitoring report, acceptance opinion), see attachment for details.

Publicity time: May 17, 2018-June 15, 2018 (22 working days)

During the publicity period, if you have any objections to the above publicity content, please give feedback in writing. Individuals must sign their real names and units must affix their official seals.

Contact person: Han Deming

Contact number: 18561595767

The Ministry of Commerce responds to the "withdrawal" of Chinese photovoltaic companie...
Views:    2021-01-16

On October 9, the Ministry of Commerce held a regular press conference. Spokesperson Shen Danyang responded to hot and sensitive issues of high concern to domestic and foreign media. PV related records are as follows:

Reporter: In August of this year, the European Union successively withdrew the qualifications for price commitments of 8 Chinese photovoltaic companies, resulting in as many as 16 Chinese photovoltaic companies that have been "exited". In the first half of this year, my country's exports of photovoltaic products to Europe fell sharply by 30%. Does the Ministry of Commerce have any comment on this?

Answer: This question actually involves two aspects: one is the disqualification of some enterprises in the implementation of the China-EU photovoltaic price commitment, and the other is the decline in China's photovoltaic exports to Europe. There is a certain degree of correlation between these two aspects. The disqualification of some companies for price commitments will objectively affect their exports within the scope of price commitments, but it is not the root cause of the decline in my country's photovoltaic exports to Europe.

Regarding the issue of the disqualification of some enterprises in the implementation of China-Europe photovoltaic price commitments. From June 2015 to August 2016, the European Commission cancelled the price commitment qualifications of 16 photovoltaic companies in my country in 7 times. The 16 companies that have been disqualified from price commitments are divided into two categories: one is voluntarily applying for withdrawal, and there are 4 such companies; the other is that they are disqualified for suspected violation of price commitment agreements, and there are 12 in total.

Some companies need to be treated objectively. First of all, we have to see that the vast majority of companies continue to retain qualifications for price commitments. In the past few years, China and the EU have upheld the spirit of cooperation and worked hard together to pave the way for the smooth implementation of the price commitment agreement. The vast majority of Chinese photovoltaic companies have complied with the agreement and the implementation is good. In addition to the disqualification of 16 companies, there are currently 105 companies still within the price commitment range. Secondly, some of the enterprises that have applied for withdrawal are voluntary actions of enterprises, mainly for the purpose of getting rid of the constraints of the terms of the price commitment agreement and seeking favorable market opportunities and space for them. Third, some companies do violate the agreement. Keeping promises is the basic position that China has always adhered to. For such enterprises, China supports the handling of such enterprises in accordance with the provisions of the agreement, which is not tolerant or tolerant. Fourth, there are still some problems in the current implementation of price commitments. The main reason is that the minimum price under the price commitment has seriously deviated from the market level price, and new situations such as the inability to fully predict the business model when negotiating and signing agreements have emerged. In this regard, we hope that the European side will make appropriate adjustments to the minimum price level in accordance with the current market conditions, and create conditions for the continued and stable implementation of price commitments in a reasonable manner. China is willing to work closely with the European side to properly resolve any problems arising from the implementation of the price commitment through friendly consultations.

Regarding the decline in China's photovoltaic exports to the EU. The EU trade restriction measures have affected my country's photovoltaic exports to a certain extent, but the main reason for the decline in exports is the gradual cancellation of incentive policies for photovoltaic applications by EU member states, which has caused severe market shrinkage, and China's export volume has fallen and export prices have fallen. The EU market has fallen from 22.4GW, when photovoltaic installed capacity peaked in 2011, to 8GW in 2015. In 2015, within the scope of price commitments, my country exported 3.46GW to the EU, worth 1.785 billion euros.

Overall, the current global photovoltaic market has undergone major changes. China has become the world’s largest photovoltaic market, the Asia-Pacific market has become diversified, and the shrinking EU photovoltaic market has declined in importance in the global market. If the EU continues to maintain restrictive measures, the contraction will be worsened, and it will also be detrimental to the EU's long-term climate and energy interests. It is hoped that the EU will terminate the photovoltaic anti-dumping and countervailing measures as soon as possible, so that the photovoltaic market will return to a normal state and truly achieve mutual benefit and win-win results.

Shandong Longyuan Qixiatao Village Tiekou 52.8MW Wind Power Project was approved
Views:    2021-01-16

It was learned on September 28 that the Qixiatao Village Tiekou Wind Power Project of Longyuan Shandong Company obtained the project approval issued by the Yantai Municipal Development and Reform Commission.

The Qixia Tao Village Tiekou Project is the first wind power project of Longyuan Shandong Company in the Jiaodong area. It is planned to install 24 2200 kilowatts wind turbines and a new 110 kilovolt booster station. The construction of the project conforms to the requirements of the national industrial policy, and has significant environmental and social benefits for adjusting and improving the structure of regional energy utilization, realizing the rational development and utilization and optimal allocation of energy resources, and promoting the sustainable development of society and economy. Since the beginning of the preliminary work, the company's preliminary staff have communicated and coordinated to determine the power grid connection issues, and have repeatedly reviewed the location of the machine with the design company, and carried out the model comparison and selection to ensure that the project benefit is maximized. In the next step, Longyuan Shandong Company will continue to implement all preparatory work before the start of the project to ensure that the project is started and put into production as soon as possible.

Zhangjiakou City actively explores new models of wind power heating
Views:    2021-01-16

As the State Council approved the "Development Plan for the Renewable Energy Demonstration Zone in Zhangjiakou, Hebei Province" and agreed to establish the Zhangjiakou Renewable Energy Demonstration Zone, Zhangjiakou's renewable energy industry, especially the wind power industry, has developed rapidly. Zhangjiakou City is actively exploring a new model of wind power heating. In 2016, Zhangjiakou City Government reported that “we must be brave to innovate and accelerate the conversion and application of renewable energy”.

Zhangjiakou Municipal Heating Power Company actively implements the requirements of government documents. While vigorously promoting urban central heating, it actively explores new models of wind power heating. Zhangjiakou Municipal Heating Power Company used Qinghe Road Primary School as an electric heating and heating demonstration project. The completion of this project is a popular support project in Zhangjiakou City.

The project has completed the bidding work, and the construction is under intense construction. It is expected to be completed in mid-October. After the project is implemented, a heating and heating building area of ​​approximately 14,000 square meters can be realized.

The project adopts the "electric boiler + heat storage device" model, utilizes the low-valley electricity preferential policy, uses the low-valley period electricity, converts the low-valley period electric energy into heat energy, while taking into account heating, stores the excess heat energy to prepare for the peak of the grid Change the time period to heat by storing heat. In this way, in the heating season, the power load of the power grid can be shifted and filled, which is beneficial to the efficient and stable operation of the power grid, and at the same time creates economic benefits for the society and the majority of heating users.

A number of major policy measures are expected to be released in the fourth quarter to...
Views:    2021-01-16

Entering the fourth quarter, capacity reduction has entered a critical period. From the central to the local level, heavy policies have continued to increase. Policy measures such as the implementation plan for the disposal of zombie companies jointly formulated by the National Development and Reform Commission and the Ministry of Industry and Information Technology, the disposal of zombie companies formulated by the State-owned Assets Supervision and Administration Commission, and the debt-to-equity swap program are expected to be introduced one after another. Local governments have also clarified and implemented specific enterprise-specific plans to resolve excess capacity. At the same time, as a number of central enterprises such as Wuhan Iron and Steel, Poly and other state-owned enterprises have made clear the production capacity reduction targets, central enterprises have accelerated their mergers and reorganizations and reduced production capacity. Industry insiders believe that, in accordance with the plan of the Development and Reform Commission, October and November will usher in the peak period of capacity reduction, but with the increase in the volume and price of coal and steel, the task of capacity reduction will be more difficult.

Many central enterprises have clear goals

Driven by the two-wheel drive of supply-side reforms and state-owned enterprise reforms, the reduction of production capacity by central enterprises has entered a "landing period."

The relevant person in charge of the WISCO Group stated that in the future, the WISCO Group plans to actively withdraw its ironmaking capacity of 3.19 million tons and steelmaking capacity of 4.42 million tons on the basis of eliminating outdated production capacity. At the same time, speed up "slimming and fitness", vigorously promote flat management, clean up and dispose of "zombie enterprises", and resolutely stop "bleeding spots."

The relevant person in charge of Sinosteel said that it will accelerate the orderly exit of the domestic ferroalloy industry and carbon industry, reduce the scale of low-end products; limit production and control losses and reduce losses, ensure stable business operations, and promote the disposal of "zombie enterprises" in an orderly manner.

Poly Group proposed to resolutely implement the national coal industry's capacity reduction policy, shut down inefficient and ineffective mines, and achieve strategic exit as soon as possible. It will take three years to complete the reorganization, integration and exit of 39 zombie companies to ensure that losses are reduced by more than 50%.

China Southern Power Grid stated that the core of "de-capacity" on the grid side is to resolutely control and reduce ineffective and inefficient investments from the source. The key to “de-capacity” on the consumer side is to give full play to the role of electricity prices and market guidance to promote the elimination of backward production capacity. Strictly implement the high energy consumption differential and punitive electricity price policy, and resolutely resist illegal electricity price discounts. Strictly implement the relevant measures of the State Council on the immediate power-off of power plants withdrawn from production capacity such as steel and coal. Actively accept the power supply infrastructure of the "three supplies and one industry" of heavy-duty state-owned enterprises.

Huaneng Group stated that by the end of 2018, it will withdraw its coal production capacity of 9.14 million tons per year, and dispose of 16 “zombie enterprises” and 4 extremely poor enterprises. During the "13th Five-Year Plan" period, 6.47 million kilowatts of coal-fired power units were shut down and decommissioned.

Huadian Group stated that it should start from the source, comprehensively sort out the preliminary projects, and resolutely abandon those projects that are not in line with the national industrial development direction, the profit expectations are uncertain, and the competitiveness is not strong. It should be slowed down and stopped. We must do a good job in making loss-making companies turn losses and increase profits, clean up zombie companies, eliminate outdated production capacity, strictly control liabilities, prevent operational risks, and ensure the sustained and healthy development of enterprises.

De-capacity hits a combination punch

Since August, efforts by the central and local governments to reduce production capacity have increased significantly. The overall plan for disposing of "zombie companies" jointly formulated by the National Development and Reform Commission and the Ministry of Industry and Information Technology, the disposition plan for zombie companies formulated by the State-owned Assets Supervision and Administration Commission, and the debt-to-equity swap plan are expected to be released in the fourth quarter, paving the way for the successful completion of capacity reduction targets.

On September 29, the National Development and Reform Commission notified that as of the end of August, relevant regions had issued notices for rectification within a specified period of time to 59 steel companies and 26 coal companies that were found to have substandard energy consumption and other illegal energy use companies.

The National Development and Reform Commission has recently repeatedly emphasized that it is necessary to ensure the smooth completion of the 2016 capacity reduction target. The National Development and Reform Commission requires that all regions must advance their tasks and strive to fully complete the annual coal production capacity reduction task by the end of November. Central enterprises and provincial state-owned coal enterprises must strive to complete the task in early November.

China's state-owned enterprise structural adjustment fund with a total scale of 350 billion yuan was recently established. Previously, the central government arranged 100 billion yuan of industrial structure adjustment funds, focusing on the placement of employees in the process of reducing capacity in the steel and coal industries, covering the completion of the entire task of reducing capacity in steel and coal. At present, 30.7 billion yuan in special awards and subsidies has been allocated to localities and enterprises, and another 20% of follow-up awards and subsidies have been funded.

Chi Jingdong, vice president of the China Iron and Steel Association, recently stated in the "Economic Monthly Talks" hosted by the China International Economic Exchange Center that in accordance with the "Guiding Opinions on Promoting the Merger and Reorganization of the Iron and Steel Industry to Dispose of Zombie Enterprises" issued by the State Council, the merger and reorganization of the steel industry From now to 2025, there will be three steps: the first step is to reduce production capacity by 2018, and the clearing out; the second step is to improve the merger and reorganization policy from 2018 to 2020; third The next step is from 2020 to 2025 to promote the merger and reorganization of the steel industry on a large scale.

The progress of local capacity reduction is also accelerating. At present, 26 provinces have announced specific plans for companies to resolve excess capacity. At the same time, various localities have successively introduced supporting measures to reduce steel production capacity to accelerate the process of clearing excess capacity. The financial departments of Anhui, Shandong, Hebei and other places issued detailed rules for the management of local special bonus funds to further regulate the management and use of special bonus funds.

Fortune Securities believes that, from the perspective of the announced plans for reducing production capacity in various provinces and cities, the total target scale significantly exceeds the national total plan for reducing production capacity for coal and steel. If the task of reducing overcapacity this year is implemented as scheduled, October and November will usher in the peak period of overcapacity. In the fourth quarter, overcapacity reduction faces greater resistance. First, maintaining growth will become the top priority; second, the remaining overcapacity targets are mostly "hard bones", and third, price rebounds are likely to cause repetition.

Price fluctuations do not change determination

The pressure of rising steel and coal prices that accompany the production control limit cannot be ignored. In response to the current situation of excessively rising coal prices, the National Development and Reform Commission, the Bureau of Energy, the Bureau of Coal Supervision, and the Coal Industry Association have formulated plans to stabilize coal supply and restrain coal prices from rising too quickly. In early September, combined with changes in the market situation, the secondary response of the plan was launched, releasing approximately 300,000 tons of production capacity per day. Recently, it has increased its efforts to initiate a first-level response, which can release 500,000 tons of production capacity per day.

The National Development and Reform Commission has repeatedly emphasized in recent times that the trend of coal overcapacity and oversupply has not fundamentally changed. Not only is confidence in the reduction of coal production capacity and production control unshakable, but the intensity cannot be weakened. In the future, all regions and departments must unswervingly reduce production capacity, and cannot let price fluctuations shake their determination to reduce production capacity. In response to the new conditions and changes in the current coal market, appropriate fine-tuning policies will be adopted to try to balance the interests of coal production, transportation and circulation and users to achieve healthy development.

Market analysis believes that due to the limited production of coal mines, the supply of coal resources continues to be tight, coupled with the advent of the heating season, coal demand will further rise. According to the policy arrangement, the coal industry will also usher in a concentrated period of capacity closure in the next few months, and the tight supply in the coal market will be difficult to reverse in the short term. The fourth quarter is a critical period for overcapacity reduction. If we blindly increase production, it may affect the effect of overcapacity reduction. However, if coal prices continue to rise, it will also attract some loss-making companies with outdated production capacity to come back, causing market chaos. Therefore, it is necessary to find a balance between capacity reduction and coal price fluctuations, to keep prices at a reasonable level, and to prevent major fluctuations in the short term. All parties in the market, especially relevant government authorities, should pay close attention to changes in the coal market. On the one hand, they should follow up and analyze the trend of changes in market demand in a timely manner to avoid passively introducing policies to loosen supply when supply and demand have reversed. Affect the implementation effect of the policy; on the other hand, it is necessary to combine the reduction of production capacity with the adjustment of the industrial structure, increase supervision and prevent backward production capacity from resurgence in the rise of coal prices.

Anbang think tank research team believes that although real estate investment in various regions has accelerated the demand for steel and coal, overall, it is unlikely to enter a new round of economic prosperity in the future. The demand for coal and steel will not increase significantly, so the country We should do a good job of regulation, we still need to vigorously eliminate and reduce backward production capacity, and do a good job in implementation. With the rebound of market prices, the level of corporate profitability has increased, which has actually created conditions for companies to alleviate the impact of capacity reduction. Local governments can consider how to actively use this opportunity to increase capacity reduction efforts.

Huadian Qingdao's ultra-low emission transformation has four consecutive cards for...
Views:    2021-01-16

The flue gas emitted by the four boilers must be “disinfected” first, then the seawater bath must be washed, and the body must be washed with fresh water. In the end, only 0.01% of the flue gas can “escape”. Yesterday, the reporter learned from Huadian Qingdao Power Co., Ltd. that they invested 160 million yuan this year to implement ultra-low emission retrofits, which will be completed next month, thus completing the environmental protection retrofit goal one year ahead of schedule.

The reporter visited the site of the renovation project and saw that the four boilers were about 70 meters high and 30 meters wide, equivalent to a 20-story building with two 225-meter chimneys nearby. Luo Jingsheng, deputy director of the company’s environmental protection center, introduced to reporters that the main pollutants in the flue gas produced by Huadian’s coal-fired boilers are sulfur dioxide and soot. Before being discharged into the atmosphere through the towering chimney, it must undergo denitrification, desulfurization and desulfurization. Dust removal treatment to intercept smoke, dust and sulfur dioxide. The easternmost building of the boiler is a denitration reactor. This renovation adds a layer of catalyst and sonic soot blowing, as well as ammonia tanks, evaporators, buffer tanks, and ammonia supply pipelines. "The original denitrification equipment had two layers of catalysts, but now it has become a three-layer catalyst. With the help of the catalyst, harmful nitrogen oxides become harmless nitrogen and moisture, which is equivalent to disinfecting flue gas." Luo Jingsheng used an analogy. Say.

The equipment further to the east is the electric bag filter. Each group of equipment has 6240 large cloth bags up to 5 meters high, which can wrap the flue gas. When the flue gas wants to rush out of the bag, some of the dust will be trapped. under. The equipment next to it is a limestone desulfurization system, where 60%-70% of sulfur dioxide in the flue gas can be removed. Then there is a seawater desulphurization system. The 7,900 tons of seawater drawn from Jiaozhou Bay is sprayed down the small holes and reacts with the sulfur dioxide in the smoke like a "shower". The filtered seawater flows along the underground duct. Flow out of the desulfurization tower.

At the end is a wet dust collector. This group of equipment uses the principle of static electricity to charge the dust in an electric field, and then absorbs the dust on the anode plate, and then uses industrial water to wash the anode plate. "This is like rushing the body to the smoke and dust, which can avoid secondary pollution and dust. It can not only purify the smoke, but also has a good removal ability for PM2.5, sulfur trioxide, and aerosols." Luo Jingsheng told reporters, After these four levels of treatment, the dust removal efficiency in the flue gas is increased from 99.95% to 99.99%.

There are 6 storage warehouses in the power plant for storing soot. The soot after the fourth-stage treatment will also turn waste into treasure. The hundreds of thousands of tons of soot produced by the power plant every year will be snapped up to produce cement, bricks, etc. material.

Thermoplastic foam: the gospel of "weight loss" for offshore wind turbines
Views:    2021-01-16

Wind power generation has gradually become huge with offshore wind turbines, and transportation, assembly, disassembly and handling of such huge rotor blades have become a major problem for operators. The highly durable thermoplastic foam and composite materials developed by Fraunhofer's researchers and industry experts not only reduce the weight of the blade but also make it recyclable. Due to its special properties, the new material is also suitable for other lightweight components in the automobile and other industries. Their first product will be presented at the 2016 Düsseldorf International Plastics and Rubber Fair from October 19th to 26th.

wind power

Legend: Rotor blade made of thermoplastic sandwich material.

Nowadays, there is an unabated trend for offshore wind farms to become larger. In order to maximize energy production, the length of the rotor blades of the wind turbine is 80 meters, and the diameter of the rotor exceeds 160 meters. Since the length of the blade is limited by its weight, it is necessary to develop high-strength lightweight system materials. The low weight not only makes the wind turbine easy to assemble and disassemble, but also improves the stability at sea. In the European Union's WALiD (Highly Cost-Effective, Advanced Design of Lightweight Wind Blades) project, scientists at the Fraunhofer Institute of Chemical Technology (ICT) in Pfinztal worked closely with ten industrial and research teams on lightweight rotor blades the design of. They hope to reduce the weight of the blade by improving the design and materials, thereby increasing its service life.

Thermoplastics are replacing thermoset materials

At present, the rotor blades of wind turbines are mainly hand-made thermosetting resin systems. However, because the system materials are difficult to melt, it is difficult to recover materials. The best case is to recycle granular thermoset plastic waste and use it as a filler for some simple applications. Florian Rapp, project coordinator of FraunhoferICT, said: "In the WALiD project, we are pursuing a new blade design. We are realizing the conversion of material categories and using thermoplastic rotor blades for the first time. The meltability of thermoplastics helps We use automated production equipment for effective processing." Their goal is to separate glass and carbon fiber to achieve the reuse of thermoplastic matrix materials.

The project team used a sandwich material made of thermoplastic foam and fiber-reinforced plastic to manufacture the outer shell of the rotor blade and certain parts of the internal support structure. Generally, the area where the rotor blade bears the greatest load uses carbon fiber reinforced thermoplastics, and the less stressed portion uses glass fiber reinforced plastics. As for the core of the sandwich, Rapp and his team are developing thermoplastic foam and connecting it with a cover layer made of fiber-reinforced thermoplastic. This combination improves the mechanical strength, efficiency, durability and life of the rotor blade. Rapp's words: "We are breaking new ground with thermoplastic foam."

New uses for lightweight construction materials

The performance of ICT's thermoplastic foam is superior to that of the existing material system, which enables it to have new applications in the automotive, aviation, and marine industries. For example, the goggles and seats of the vehicle are made of foam, but the structure that bears the load cannot be made of foam. The foam currently on the market has some problems. For example, due to the poor thermal stability of the foam, no foam insulation is installed near the engine. Rapp said: "In contrast, our fusible plastic foams are thermally stable and are suitable for use as insulating materials to be placed close to the engine. They have good high temperature resistance. Among them, expanded polystyrene foam (EPS) and Polypropylene foam (EPP) is a good example. The enhanced mechanical properties also make them useful for door modules or as a strengthening element for sandwich composites. "They can be processed quickly and save materials.

Another advantage is that thermoplastic foams such as cork are easier to obtain than renewable sandwich core materials. These new materials are made in the institute’s foam extrusion workshop. Rapp’s explanation of the process is: “After the plastic particles are melted, the foaming agent is mixed into the polymer melt to foam the material. Next, these foamed, stable particles and semi-finished products can be molded and cut on demand.” In the field of foamed polymers, the ICT foam technology research team covers the entire thermoplastic foam production chain from material development and the manufacture of extruded foam particles and semi-finished products to the completion of process media and components.

At the Düsseldorf International Plastics and Rubber Expo held from October 19th to 26th, 2016, researchers will showcase micro wind turbines made of new foam and composite materials. Participants can see the exhibits (Exhibit No. SC01) in the Fraunhofer booth in Hall 7.

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