“The cleaning efficiency of our equipment for photovoltaic power plant components is 1.5 times that of similar technologies. Not only does it have no complicated rotating structure, but it also has a slow erosion rate in the northwest wind-sand environment. The failure rate is 25% of similar technologies.â€
These are the words of a team from the Pioneering Valley of the Haidian Pioneering Center in the "Chuangqi Future" International Youth Science and Technology Entrepreneurship Competition in June this year. They are from the Cold and Arid Regions Environmental and Engineering Research Institute of the Chinese Academy of Sciences (hereinafter referred to as the Cold Drought). Dr. Sun Jiahuan of the institute, Dr. Cui Yongqin of the Chinese Academy of Sciences Ecological Environment Research Center, Master of the University of Florida Xu Zhihua, and others, and finally won the third prize of the Grand Finals Startup Team with a large-scale photovoltaic power plant component cleaning equipment project.
Today, this entrepreneurial team has settled in the Haidian Pioneer Park and established Beijing Green Energy Jiaye New Energy Co., Ltd. (hereinafter referred to as “Green Energy Jiayeâ€). It hopes to become a clean-field for domestic photovoltaic power plants in the next 2 to 3 years. Leader.
Dirt affects power generation
Photovoltaic power plants refer to photovoltaic power generation systems that are connected to the grid and transmit power to the grid. Photovoltaic power generation system devices are protected by solar cells after being connected in series to form a large-area solar cell module, which is then combined with power controllers and other components.
For the operation of large-scale photovoltaic grid-connected power plants, power generation is one of the most important indicators. In addition to the loss of inverters, transformers, cables, and other equipment, the factors affecting the amount of power generation include dust and other debris in the air. These dirts cover the solar modules and will have a significant impact on the amount of power generated.
One of the founders of Luneng Jiaye, Dr. Wang Han from Hanhan Institute, gave an example to reporters. For a 20 MW solar photovoltaic power plant, the annual power generation is expected to exceed 20 million kWh. Subsidy 1 yuan calculation, annual income up to more than 20 million yuan. However, this is only the ideal rate of return, in fact, because it can not completely solve the problem of solar cell module cleaning, resulting in losses of at least 200 million yuan per year or more.
The survey results from Green Energy's entrepreneurial team showed that, under normal circumstances, there will be up to 5% of output power loss for solar modules that have not been cleaned in three months. However, in the case of a solar cell module that is located in a hostile environment, if it is not cleaned in 20 days, the loss will be about 12%.
China's ground-based photovoltaic power plants are mainly concentrated in the northwestern region. These areas are very rich in solar energy resources and all belong to the category of solar energy irradiation. The annual sunshine hours are over 3,200 hours. At the same time, the natural environment in the northwest region is also rather harsh, especially in the spring and autumn dust storm weather seriously affected the photovoltaic system's power generation.
How to effectively remove dust from solar cell modules has become a problem that has plagued major photovoltaic power plants.
Efficient solution
At present, for the dust removal of photovoltaic power plants, artificial, high-pressure water guns, spray systems, and other cleaning programs are adopted.
Wang Min pointed out that dust storms, summer exposure, and extreme cold in spring and autumn in areas where photovoltaic power plants are located in China are not conducive to artificial field transportation and maintenance work. Photovoltaic power station construction areas are far from urban and rural areas, and there is a shortage of labor workers and occupational literacy of workers is low. It is difficult to ensure the cleanliness, operation and maintenance needs of photovoltaic power plants.
In addition, the northwestern region is facing severe water shortages. Taking the artificial cleanliness of the most water saving as an example, cleaning solar cell components is similar to wiping the glass. Although the cost is low and water is saved, it takes 10 tons of water to clean a 10 megawatt power plant once. If you use a water jet machine, the water consumption will increase exponentially. These solutions not only do not perform well in cleaning, they may even damage the solar module.
In order to solve the problem of sand and dust in photovoltaic power plants, the Green Energy Jiaye Entrepreneurial Team adopted flexible sliding friction technology to simulate natural rainfall to achieve fast and efficient clean photovoltaic power plants. Wang Min said: "Our solution requires only one person and one machine. It is not only simple to operate, but the driver can complete the cleaning by pressing a button, and it will not cause the circuit board short circuit caused by the traditional technology."
Luneng Jiaye has independently developed and designed and has produced 3 sets of photovoltaic power station component cleaning equipment. According to Wang Min, the main features of the innovation of the equipment are two points: the principle is to abandon the high-speed rolling friction, instead of flexible sliding friction; the structure discards the fan-shaped water outlet with high energy consumption, and the energy consumption is changed to Low multi-point effluent is formed by points into lines and then lines into structures.
At present, this set of photovoltaic power plant component cleaning equipment has not only been successfully patented, but also trial run at Wuwei Photovoltaic Power Plant, with good results.
Light asset operating model
“The original idea came from a discovery in our PV project in 2009. The cleanliness of PV modules became a pain point for customers. However, the current solution cannot fully meet the demand. Then we can solve it.†Wang Min told reporters, “ We have been working hard for the past few years."
This year, Wang Min came to Beijing's Haidian Pioneering Park with his team's R&D achievements. After many exchanges and communication with entrepreneurs and tutors in the park, he created the Green Canjia Industry Co., Ltd., which focuses on the impact of dust on the power generation of large-scale photovoltaic power plants. The development of system design, manufacturing, intelligent monitoring, and fault diagnosis for the photovoltaic power plant components is provided to achieve the purpose of increasing the power generation of the photovoltaic power station.
"Our large-scale photovoltaic power plant components clean equipment production cost is only 30% of the cost of similar foreign products, is 60% of the cost of similar domestic products." Wang Min pointed out that the future plan of Luneng Jiaye is to achieve global operations.
For the start-up phase of Green Energy, the main task of the early stage is marketing. In the past few months since the company was founded, Wang Min has been running in Beijing to introduce clients to his products and three possible promotion programs: energy efficiency management, integration services, and equipment leasing.
“We are waiting for the first order of Luneng Jiaye.†Wang Min is very confident. “The preliminary research and development has been completed and the marketing is getting better now. It will be a matter of time before harvesting orders.â€
In the early days of its establishment, Green Energy Technology chose a light asset operating model. While running customers, Wang Min is also actively contacting spare parts production plants to ensure that once Green Energy Jiaye obtains orders, the outsourcing partners can produce and sell them in a timely manner.
Wang Min said: “What we previously thought about in the laboratory was whether scientific research ideas were correct. Today, entrepreneurship needs to explore how to obtain large benefits on the basis of small investment.â€
Sectional Door Accessories: motor 220V-380V, control box, spring break device, cable break device , aluminum alloy rope pulley, enhanced shaft bracket, air bag system, duplex enhanced guide wheel bracket.
Detail introduction for above main accessories
1.Motor and controller:
The garage door operator is designed for residential overhead sectional and tilt doors.
The operator memorizes the limit positions and unique braking system that slows the unit down at the end of its travel.
Rolling code remote control with max. 20 pcs hand transmitters.
The operator is equipped with a manual release lever which allows manual operation of the door in case of power failure.
The controller has a security LOCK function which prevents operation of the door from transmitter.
2.spring break device:
Sectional doors are hinged and they bend in the tracks as the door opens and closes. Many of these doors are counterbalanced with extension springs, also designated "stretch springs," and they have seven characteristics. The length is the measurement of all the coils pressed together. This, along with the inside diameter of the coils and wire size - the thickness of the wire from which the springs are made - determine the stretch, the distance the spring is extended - normally half the door height, and pull, the force the spring pulls when stretched its normal length. The type of ends determine how the ends of the spring are mounted. The initial tension is the percentage of pull needed to separate the coils. This is determined by the pitch with which the springs are wound. On sectional garage door springs this is normally 15 percent. For example a 100 pound pull spring requires 15 pounds of weight to separate the coils; when a door is open the two springs will support 15 pounds of door weight without any stretch.
Most extension springs are made of oil tempered wire. These are normally coated or painted. Some springs are made of galvanized wire.
3.able break device:
cable break device ,door hardware
adjustable bottom bracket .
the raw material hot plate
zinc plated
safety device
adjustable bottom bracket
the raw material hot plate
zinc plating
spring safety device ,2" and 3" safety device
once the cable is broken ,this devoice can keep the hurt away from the door falling
4.aluminum alloy rope pulley
Equipment: CNC stamping/punching machine, CNC bending machine, CNC cutting
machine, 5~250 tons punching machines, welding machine, polish machines...
Processed material: stainless steel: copper, carbon steel
Surface treatment: Hot galvanized, polishing
Making process:Stamping, deep drawing,bending, punching, laser cutting,threading,
welding, tapping, riveting, grinding
5.air bag system
It is a safety device. When the door is down to hit something, it will up automatically.
Operation pressure:<3mbar
Battery:CR2032*2
Battery lifetime>1 year
Emission frequency: 315MHZ
Emission power:<10mW
Receiver power source:12V
6.duplex enhanced guide wheel bracket
Determining the right type of sectional door roller for your garage door tracks can be a little confusing, especially when you do not know what you need to look for in a garage door roller. To simplify things, there are two primary things you need to be aware of. First are the actual dimensions of the roller, and second is purpose that you will be using the door for. You can read below about measuring your roller and choosing the right quality of material for your door.
Other Door Accessories,Electronic Door Accessories,Automatic Door Accessories,High Speed Door Radar Detector
Shenzhen Hongfa Automatic Door Co., Ltd. , https://www.pvchighspeeddoor.com