China Guangzhou Younaide Metal Products Co., Ltd. Company News

What are the components of C-type steel photovoltaic bracket? Its bracket is a system used to support photovoltaic cell modules, consisting of struts, supports, beams, shafts, guides and accessories made of metal materials that can be equipped with transmission and control components to track the trajectory of the sun, in addition to which accessories?   1. fixed support: inclination and azimuth Angle is not adjustable support; 2. single-axis tracking bracket: rotate around the axis to track the sun's support; 3. dual-axis tracking bracket: rotate around two axes to track the sun's support; 4. column: connected with the foundation, used to support beams, axles and guide rails; 5. support: used to strengthen the stability of the column, beam and guide parts; 6. connecting rod: it is used for bracket and bracket, bracket and power system between the mechanical transmission parts; 7.  accessories: It refers to the parts and components that fix or supplement the straight line and bending function of the support system by connecting the straight line part and the bending part between the straight line part and the bending part. It is divided into: linear connection plate, hinge connection plate, steering connection plate, variable Angle connection plate, next door, pressure plate, fastener.

The use of photovoltaic support needs to be used according to the needs of photovoltaic construction, under the importance of the current environmental situation, the most common types of photovoltaic support used in the market are the following: Single column solar bracket, double column solar bracket, matrix solar bracket, roof solar bracket, wall solar bracket, tracking system series bracket, these photovoltaic bracket systems can be improved according to different needs, according to the installation method is divided into roof, ground, building several. These installation methods and system structure are integrated to design. The current formation of large-scale commodity market of photovoltaic brackets is mainly based on non-adjustable bracket types, and other types such as tracking are affected by the comparison of income and investment, and are subject to certain development restrictions. Therefore, the development of the current photovoltaic bracket needs to consider the needs of the use of integrated design. At present, the photovoltaic bracket material type used in China is divided into three categories: steel, aluminum alloy and concrete bracket, the main use is divided into three types of use environment echo, concrete bracket, mainly used in large-scale projects and outdoor, of course, there are some limited requirements. Aluminum alloy bracket is widely used, the use of civilian mainly, the use of a wide range of light weight, beautiful, corrosion resistance as the main characteristics of the bracket, and the application range of steel bracket can be based on needs in small brackets, medium-sized brackets, steel bracket application range is wider. From the perspective of comprehensive application, whether it is the material of photovoltaic bracket or the type of photovoltaic bracket system can not completely affect the application market of photovoltaic bracket, and the application of photovoltaic bracket to maximize the value of photovoltaic bracket is the most important development direction of photovoltaic bracket. The design of photovoltaic brackets needs to be started from multiple angles. Including pressure resistance, corrosion ability, etc., to form a long-term system support for the service life, is the photovoltaic bracket in the use of performance optimization.

The construction land environment of the project is different, and the selection requirements of photovoltaic brackets are naturally different. In the case of increasingly tight new energy land, with the development of photovoltaic power generation technology, photovoltaic power plant land is also moving towards the slope, sand and even the ocean, which poses new challenges to the selection of photovoltaic support. So, what factors should be considered in the selection of photovoltaic brackets? What are the new features of new technologies such as tracking bracket and flexible bracket in the promotion and application?   Comprehensive geographical conditions, power restrictions, bidding rules to optimize In the process of bracket selection, factors such as topography, geological conditions and land area should be fully considered. For example, the flat single-axis tracking bracket has certain requirements for the slope of the terrain, and the area with a slope greater than 10 degrees is usually not suitable for installing the flat single-axis bracket, and at this point, the fixed bracket is more applicable. For example, if the adjustable bracket is used, it is also necessary to consider the location of the power station, whether the operation and maintenance personnel are easy to reach, and whether it is convenient for subsequent adjustment operations. If conditions permit, it is recommended to use advanced technologies such as fixed adjustable, flat single-axis tracking, and adjustable elevation dual-axis tracking to increase power generation. In addition to the objective natural conditions, the various factors such as taxes, environmental requirements and power limiting of the power station are also important indicators that need to be referred to in the comprehensive optimization process. In many cases, an increase in power generation does not necessarily lead to an increase in comprehensive earnings. According to the actual situation, whether the power station is facing the problem of power rationing, how much the proportion of power rationing, and the implementation of the number of guaranteed acquisition hours should be taken into account, and the return on investment and economy of the stent products should be comprehensively measured. It should also be considered according to the actual situation of different projects. The specific bidding optimization rules also affect the selection of bracket to a large extent. In the previous PV leading base project, the higher the system efficiency, the lower the electricity price, the higher the bidding score, at this time, it is necessary to seek the balance point of price and power generation, so as to choose the appropriate bracket.     Tracking stent market expansion Technical details need to be optimized and upgraded   From the perspective of improving the power generation, compared with the traditional fixed bracket, the tracking bracket can be adjusted in real time to make the photovoltaic module face the ****** Angle of sunlight, thus improving the power generation efficiency. The reporter learned that at present, with the continuous advancement of the construction of domestic scenery bases, the market demand for tracking supports has also begun to expand. In the early years, the failure rate of the tracking bracket is indeed relatively high, and is subject to technical reasons, and the terrain is not very suitable. Globally, shipments of tracking stents exceeded 51 million kilowatts last year, an increase of about 12%. It is expected that in 2022-2030, the market demand for solar tracking brackets will exceed 660 million kilowatts. Despite the relatively low acceptance of tracking stent in China, in terms of total volume, China is still the largest tracking stent installation market in Asia. As the market scale continues to expand, the tracking bracket also needs technical optimization and innovation in many aspects. For example, in some mountains and slopes, the universal joint of the main shaft is one of the more common points of failure, which is where the technical upgrade needs to be made. In addition, the compatibility of large-format components and the optimal design of adaptive double-sided components are all problems that need to be solved in the follow-up development of the tracking bracket.   Flexible support for complex terrain The standard specification needs to be perfected   Thanks to the terrain conditions of desert, Gobi and desert, the requirements for installation slope and operating environment under components are not strict in the selection process of support for the large base project. However, it is more urgent to adapt to the complex and diverse terrain in the mountainous areas of southwest and central and eastern regions where the large base model cannot be implemented. The biggest feature of the flexible bracket is that it has a large span, high headroom, and sufficient space under the component, which is conducive to carrying out the 'photovoltaic +' project." The flexible bracket can span complex terrain, and is very suitable for photovoltaic installation in fish ponds, complex slopes, sewage plants, beaches, canals and other places. However, due to the technical characteristics, the practical application of flexible brackets also has challenges. In view of the meteorological conditions that the power station may face, the most critical problem is to suppress wind vibration because of the small stiffness of the flexible components. In this regard, it is necessary to take the necessary wind resistance measures such as adding ground anchors and wind cable trusses. In the design process, wind tunnel experiments are often used to verify the stability of the structural system. In terms of design, the structural analysis of the flexible bracket is more complicated, and there are many influencing factors, and there is no relevant national design code and technical standard. These are the problems that need to be solved in the future development of flexible supports.

Photovoltaic bracket is the "skeleton" that supports photovoltaic modules, and its performance directly affects the operational stability, power generation efficiency and investment income of photovoltaic power stations, which plays an important role in the construction of photovoltaic power stations. Photovoltaic bracket is a special functional bracket for installing, supporting and fixing photovoltaic modules, which can be divided into fixed bracket and tracking bracket according to whether it can follow the sun to rotate.   1. Fixed bracket Fixed bracket structure is simple, good stability, low initial investment and maintenance costs, fixed bracket with excellent stability and low early investment costs, in the photovoltaic bracket market occupies a large share, is the current mainstream type. 2. Tracking bracket The tracking bracket can be rotated in real time to follow sunlight, both to improve power generation gain and to smooth the output curve. The tracking bracket and the double glass can reduce the Angle between the component and the direct sunlight, obtain more solar irradiation, achieve higher power generation, and effectively improve power generation efficiency. Photovoltaic tracking bracket can generally bring 15%-20% power generation increase for photovoltaic power stations, but the power station using tracking bracket needs to increase a certain amount of initial investment costs, and needs to bear a certain amount of device operation risk and later maintenance costs.   Photovoltaic support for raw material concerns The photovoltaic system needs to operate smoothly in the harsh natural environment for more than 25 years, which means that the photovoltaic bracket needs to have strong mechanical properties such as wind pressure resistance, snow pressure resistance, seismic resistance, corrosion resistance, and so on, to ensure normal operation in various harsh environments such as wind sand, rain, snow, and earthquakes. In addition, due to the installation and fixing of photovoltaic brackets and other components, raw materials need to be divided and punched, etc., if the pre-galvanized steel plate is directly used, it is easy to form corrosion at the steel plate incision and punching after processing. Therefore, the previous practice for a long time was to carry out by hot dip galvanizing after the steel plate processing, the advantage of this method is that the incision and punching parts can be covered by hot dip galvanizing after processing, but the disadvantage is that the post-treatment process and supporting transportation, storage and other links are more, the cost is higher, not environmental protection and no quality assurance. With the development of the photovoltaic industry, the market is also in urgent need of a product solution that can replace hot dip galvanizing.  

Zinc-aluminum-magnesium coated steel plate refers to a coated steel plate with a certain amount of Al and Mg added to the existing hot galvanized coating or a certain amount of Mg added to the hot plated aluminum zinc coating, which has the characteristics of high corrosion resistance and high cutting edge protection. The results of laboratory accelerated experiments and outdoor exposure experiments have shown that the increase of Al and Mg content in a certain range can improve the corrosion resistance by several times to ten times. Another major advantage of the coating after adding Mg is that the cutting edge corrosion resistance of the steel plate is improved, and the Zn-based corrosion products containing Mg will cover the surface of the incision, thus forming protection for the incision.   1、Zinc aluminum magnesium product features: (1) High corrosion resistance: The magnesium (Mg) component of the coating is conducive to promoting the formation of a very stable and dense protective film, generating and maintaining a film-like covering layer on the surface of the coating, thereby exerting excellent corrosion resistance. (2) Incision protection: The incision parts of the steel plate processing are exposed to the air and are prone to red rust corrosion. However, the alloy elements in the surface coating of zinc, aluminum and magnesium form water-soluble ions in the atmospheric corrosion environment, and gradually cover the incision with the flow of liquid film, forming a stable protective film and covering the red rust at the incision position, significantly improving the corrosion resistance of the incision. (3) Easy stamping: The friction behavior of zinc aluminum magnesium coating (ZM) and pure zinc coating (GI) in multiple friction processes was evaluated by reciprocating friction test machine. The friction coefficient of zinc-aluminum-magnesium coating is 15% lower than that of pure zinc coating, and it remains stable during the reciprocating friction process, indicating that zinc-aluminum-magnesium coating has excellent wear resistance. 2、Compared with the advantages of hot dip galvanizing: (1) Shorten the process cost: The use of hot-dip galvanized aluminum magnesium can omit the hot-dip galvanized and post-treatment process as well as the supporting transportation, storage and other links, reduce pollutant emissions, improve efficiency and save costs. (2) Improved corrosion resistance: under the condition of neutral salt spray test, the planar corrosion resistance of zinc-aluminum-magnesium coating is significantly better than that of hot-dip pure zinc coating. (3) Warranty period: zinc aluminum magnesium products can provide more than 30 years of warranty, in line with the photovoltaic industry more than 25 years of use requirements.   As the current mainstream application of solar photovoltaic stent products, zinc aluminum magnesium plate can be directly processed and used, shorten the processing period of component products, and the project period is controllable. In addition, with its corrosion resistance, wear resistance, painting resistance and good weldability and other qualities have been widely used in various industries, whether in the photovoltaic (construction) industry, automobile manufacturing, animal husbandry industry or airports, high-speed rail construction, we can see the figure of zinc aluminum magnesium plate.

Material selection: Vehicle brackets are usually made of aluminum alloy, stainless steel or aluminum alloy. Aluminum alloy is the most commonly used choice because it has good strength and corrosion resistance, and is light in weight, so the installation has good durability. Corrosion, suitable for environmental conditions of humidity or electricity. The coating provides higher strength and is suitable for large-scale photovoltaic systems or occasions where structural strength is required. Installation and orientation: The installation Angle and orientation of the photovoltaic bracket are critical to the performance of the solar panel. The installation Angle is located at the base's latitude, seasonal variation, and desired energy statistical Angle. For fixed brackets, an optimal fixing Angle is usually selected. The tracking bracket can adjust the Angle in real time according to the position of the sun to maximize the capture of solar energy. Foundations and foundations: Photovoltaic systems installed on the ground usually require foundations and foundations to provide stable support. The foundation can be a concrete foundation or a foundation frame, which is used to hold the columns of the support. The foundation is the base of the foundation, usually made of concrete or other reinforcing material to ensure the stability of the support. Wind and snow load: the photovoltaic bracket must be able to withstand the action of wind and snow. In areas with high wind or frequent snow, the bracket needs to have sufficient strength and stability. Wind and snow loads are important considerations in the design of photovoltaic installations to ensure the safe operation of the system under statistical diagram conditions. Safety and certification: Vehicle brackets shall comply with relevant safety standards and certification requirements. These standards and certifications ensure that the design, materials and manufacture of the brackets meet industry specifications and are of appropriate strength and operation. Common certification bodies include TUV, UL and CE. Installation and maintenance: Proper installation and regular maintenance are critical to the reliability and performance of photovoltaic brackets. Installation should be carried out by experienced professionals, following the manufacturer's guidelines and relevant specifications. Regular inspection and maintenance of the support, including support lightning, snow clearing and replenishment, is conducive to ensuring the normal operation and long-term service life of the system.

      C type steel equipment selection, should consider their different characteristics. In light steel industrial plant, when there is a large suspension load or moving load, it can be considered to give up the gantry frame and use the grid frame. In areas with large basic snow pressure, the roof curve should be conducive to snow slide (the tangent line of 50 degrees requires consideration of snow load). For example, the limestone barn shed of Yadong cement factory uses a three-core round mesh shell. Nearly half of the total snow load was released. Areas with high rainfall are considered similarly. When the building permits, it is more economical to place supports in the frame than to simply connect the joints to the frame. In the buildings with large roof span, suspension cable or cable membrane structure system with main component tension can be selected. In the design of high-rise steel structure, steel-concrete composite structure is often used. In the high-rise with high seismic intensity or very irregular, it should not be simply for the sake of economy to choose the unfavorable aseismic core cylinder with outer frame. It is advisable to choose a structural system with large src columns around and a supporting frame at the core. More than half of such high-level in our country is the former. It is not good for earthquake resistance. Sometimes the direction of load transfer can be adjusted to meet different requirements for the arrangement of the floor plane secondary beams of the tile press structure. The layout of the structure should be considered comprehensively according to the characteristics of the system, load distribution and properties. Generally speaking, the stiffness should be uniform. The mechanical model is clear. Limit the influence area of large loads or moving loads as much as possible, so that it is transmitted to the foundation in the most direct line. The distribution of anti-lateral supports between columns should be uniform. Its centroid should be as close as possible to the line of action of the lateral force (wind shock). Otherwise the torsion of the structure should be considered. The resistance side of the structure should have multiple lines of defense. For example, with a braced frame structure, the column should be able to withstand at least 1/4 of the total horizontal force alone.

1. Why should we pay attention to the importance of photovoltaic support in power generation system ? The solar bracket is a very important part of the photovoltaic power station . It carries the main power generation body of the photovoltaic power station . If the design is unreasonable , an accident occurs in a disastrous climate , which will have a fatal impact on the power station . Therefore , in the design process , it is necessary to comprehensively consider various factors , and finally determine the support selection and array layout . 2. How to effectively extend the service life of the solar PV bracket ? Ground PV support system common ground PV system generally adopts the form of concrete strip ( block ) foundation . Challenges faced by the solar PV support design scheme . The most important feature of the assembly components of any type of solar PV support design scheme is the weather resistance . The structure must be firm and reliable , and can withstand atmospheric erosion , wind load and other external effects . Safe and reliable installation , achieving the maximum use results with the minimum installation cost , almost maintenance free and reliable maintenance are all important factors to be considered when making a scheme selection . High wear resistant materials are used in the solution to resist wind , snow and other corrosive effects . Comprehensive use of aluminum alloy anodizing , ultra thick hot galvanizing , UV aging resistance and other technologies to ensure the service life of solar support and solar tracking . At present, the commonly used PV support foundation forms at home and abroad are cement foundation and screw ground pile . Cement based PV support usually adopts independent foundation or strip foundation , and the fabrication method adopts prefabrication or cast - in - place . Its outstanding advantage is that it uses less steel , is basically not limited by geological conditions , has excellent anti-corrosion performance and less potential safety hazards . 3. What aspects of PV supports do customers need to focus on ? As an emerging industry, photovoltaic supports are facing more and more customer needs . At the same time , some customers lack the knowledge of photovoltaic support installation , design , calculation and other aspects . Have to rely on the professional team of the manufacturer . Therefore , photovoltaic support manufacturers and services are concerned about team building . Only when the industry is always professional can we know more . In the face of customer demand , the PV bracket manufacturers know their products and publish the detailed parameters of the products . In fact, it is a kind of behavior to win the trust of customers . Correctly , it is not necessary to focus on the parameters when selecting non professional PV users .  We should judge and choose from the side . For example , the following aspects : erection structure, tracking moving parts, component materials, component processing technology, warranty time and effective service time. The product descriptions of photovoltaic supports in the network always habitually include parameters, installed capacity, control mode, tracking (accuracy, elevation, azimuth), safe operation capability, driving (type, electric power), protection capability, working environment, area, finishing weight, etc. It doesn't mean that the parameters are not important, but that if you can't understand many parameters, you should focus on understanding the details from the side, and then compare the parameters after a preliminary understanding . The same parameters of different fabrics and processing will also vary a lot . This is one of the reasons why the brand's products are still expensive although their parameters and performance are not high by comparison . The selection of photovoltaic supports from the perspective of non professional users is mainly considered in practical fields such as materials . For parameters , it can be said that as long as the requirements to be met are put forward , the general manufacturers will meet or explain them . 4. What are the components of the small flat PV bracket installation ? The installation of general small plane photovoltaic supports is mainly divided into three main components , namely , triangle beam support , beam support and vertical support , whose main purpose is to form a certain angle with the irradiation surface . Other installation parts also include load - bearing parts , diagonal braces , pull rods , pressure blocks , hinges , bolts , connectors , etc . ① Triangle beam support includes longitudinal and transverse (back beam, inclined beam and low beam). Flat steel is selected as the general material . ② The beam support generally plays a compressive role. Generally, aluminum alloy C-section steel is used to select the aperture according to the application occasion . ③ The vertical support can generally be the back beam of the triangular beam frame, or it can be designed separately . ④ Other connecting structures mainly help to fix the bracket. During the installation process, the triangle beam support is connected and fixed by bolts, and then connected and fixed vertically with other beams. However, the following points should be noted . It is necessary to add a stop component when the beam is connected with the support frame . If necessary , tie rod connection can be used in the beam , and whether to install tie rod and diagonal brace is determined according to the size of the span . If the beam is too long , it needs to be connected and fixed with connecting pieces and bolts . 5. What is the proportion of PV support in the system investment ? According to the statistical data of Germany, in a large - scale solar power station project, the construction cost accounts for about 21 % of the total investment in photovoltaic projects, while the investment in solar photovoltaic supports accounts for only about  3 % of the total cost. Therefore, compared with the high investment of solar power station, the fluctuation of support cost is not a sensitive factor. The cost of selecting high-end supports only increases by less than 1 % . However, if the selected supports are not appropriate, the later maintenance cost will increase greatly, and it is not cost-effective to consider the whole . 6. What problems should be paid attention to in the selection of solar PV support ? The selection of solar support materials and installation methods can only be determined through strict calculation . In addition , weather resistance is also one of the basis for selection due to the texture , climate , environment and other factors of the installation site . For example, the installation site with soft texture can be fixed with ground anchors . If the historical maximum wind speed or maximum snow volume is within a certain range , materials that can meet the requirements and have low cost can be appropriately selected. In addition, factors such as maintenance and material recovery shall be considered. 7. What problems should be paid attention to in the packaging, transportation and storage of PV supports ? Packing notes: appropriate packing cases shall be designed and selected according to the actual size, quality, packing quantity and other parameters of the product. The parts shall be packed with plastic film or other soft materials before packing. During packing, shockproof cushioning materials shall be filled between the parts and between the parts and the packing case. The packing case shall be attached with the product manual and certificate of conformity . Transportation note: during the transportation of PV system support , appropriate transportation tools shall be selected and necessary rain proof measures shall be taken. The packaging shall be intact during transportation , loading and unloading , and rain proof, shock absorption and impact proof measures shall be taken . Storage note: the support shall be stored in a dry, ventilated place without corrosive substances . 8. What is the stability of PV power generation support system? Will it fail in a few years ? It is recommended to choose brand supports . Generally , they have passed the authoritative testing and certification all over the world , passed the salt spray and ammonia corrosion tests , and have excellent corrosion resistance . The corrosion resistance period can be as long as 25 years .

Multi layer bridge supports are installed on the top of the warehouse or cabinet , which are suitable for 600mm wide bridge supports . The width of the supports can be customized . Calculate and design the installation distance of the support according to the actual situation on site , and then design the number and orientation of the support layers according to the type of pipeline to be installed , and adjust the height for common use by multiple professional pipelines . The bridge support is installed quickly , which can overcome the shaking of hanging under the high space of the hanger , and the pipeline direction is clear .     In this project , H - shaped steel cattle foot joint supports and hangers are used to bear the load from the supports and hangers . Supports and hangers are connected with steel corbels through integrated heavy beam clamps . The C - shaped steel beam , supports and hangers and the three body steel bracket are connected with fittings such as connectors , beam clamps and movable bases to achieve the effect of overall fixation . It is easy to install , stable and durable , and saves space . The connecting pieces , beam clamps , movable bases and other accessories used in the project are also produced by unaided . The specification and size are perfectly connected with C-shaped steel .  

In the field of mechanical and electrical installation , especially in industrial plants , it usually involves the pipeline installation and construction of various power systems , power systems , water supply systems , etc . Many plants are large - span and high space structures . The span between columns is generally more than 6 meters , and the single - layer space is generally more than 4 meters . Under such a structural mode , the company ' s integrated pipeline bridge finished supports and hangers are selected for the project .