Device and method for detecting quality of concentrating photovoltaic photo-thermal assembly

Abstract

The invention belongs to the technical field of solar photovoltaic photo-thermal comprehensive utilization, and discloses a concentrating photovoltaic photo-thermal assembly quality detection device and method.The device comprises a concentrating photovoltaic photo-thermal assembly, a tracking rotating shaft, a connecting rod, a solar simulation device, a reciprocating telescopic machine, a hot water supply module and a cold water supply module; the reciprocating telescopic machine comprises a reciprocating telescopic machine driving module and a push rod which are connected; the concentrating photovoltaic photo-thermal assembly is connected with the tracking rotating shaft which is connected with the connecting rod, and the connecting rod is connected with the push rod. The device realizes the sampling inspection of the quality of the concentrating photovoltaic photo-thermal assembly under the industrial mass production condition of the concentrating photovoltaic photo-thermal assembly, and realizes the detection of the mechanical life and quality, the water pipeline life and quality and the power output performance of the concentrating photovoltaic photo-thermal assembly running for 25 years in the whole life cycle within 32 hours. The product quality of the concentrating photovoltaic photo-thermal assembly can be strictly controlled on an indoor industrial production line, and the production cost of concentrating photovoltaic photo-thermal parts, equipment and assemblies can be greatly reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of comprehensive utilization of solar photovoltaic and thermal energy, and specifically relates to a device and method for detecting the quality of concentrated photovoltaic and thermal energy components. Background Art

[0002] Concentrated photovoltaic and thermal technology can realize the full spectrum of efficient and low-cost solar energy collection and utilization. Through long-term research, a complete set of equipment research and development systems have been formed at home and abroad, that is, large-mirror concentrated photovoltaic and thermal devices and systems installed and operated outdoors have been formed. For such devices and systems, corresponding quality inspection devices and methods have been developed. However, for concentrated photovoltaic and thermal component products that are packaged in a small modular method and can be formed through industrial mass production and inspection in the factory, the solar energy will irradiate this component every day, causing the heat exchange pipeline in the component to heat up and cool down, and then this heating and cooling experiment will be repeated, generally for 25 years, at most 300 days a year, subject to alternating stress caused by temperature increase and decrease, a total of 25×300=7500 such changes, to evaluate whether the water (fluid) in the pipeline will be damaged and leaked or the pipeline interface will leak after such multiple alternating hot and cold expansion and contraction. At the same time, in addition to the 7500 times of hot and cold alternation mentioned above, the water (fluid) pipeline also has 7500 times of mechanical alternating operation after the reciprocating telescopic machine extends and retracts. Will it affect the water (fluid) pipeline or the water pipeline interface, and will it be damaged or leaking?

[0003] Traditional concentrated photovoltaic and solar thermal technology is a large mirror concentrator + photovoltaic + solar thermal installed on site, waiting for the sun to appear day after day to evaluate its performance over its entire life cycle (about 25 years). Generally, it is observed after one year and then theoretically extrapolated to 25 years. It is impossible to conduct a 25-year test, or the large mirror, photovoltaic and solar thermal devices can only be simulated and tested one by one in the factory to correspond to the life value of each component after 25 years of operation. These three devices cannot be integrated together for 25 years of operation testing because there is no such large solar simulator (because the opening of the large mirror concentrator is 4 meters wide and 2 meters long).

[0004] At the same time, the concentrated photovoltaic and solar thermal technology, which integrates traditional large mirrors, concentration, photovoltaics, and solar thermal, faces problems caused by photovoltaic and thermal coupling during operation and cannot be tested in the factory.

[0005] It can be seen that there is currently a lack of devices and methods that can use technical means in the factory to detect the thermal and electric output, pipeline connection and mechanical connection quality of concentrated photovoltaic thermal module products within the entire life cycle of 25 years in a short period of time. Summary of the invention

[0006] The purpose of the present invention is to overcome the problem in the prior art that the quality of concentrated photovoltaic and thermal assemblies cannot be detected, and to provide a concentrated photovoltaic and thermal assemblies quality detection device and method.

[0007] The present invention is achieved through the following technical solutions:

[0008] A concentrated photovoltaic thermal module quality detection device comprises a concentrated photovoltaic thermal module, a tracking rotating shaft, a connecting rod, a solar energy simulation device, a reciprocating telescopic machine, a hot water supply module and a cold water supply module;

[0009] The reciprocating telescopic machine includes a connected reciprocating telescopic machine drive module and a push rod;

[0010] The solar energy simulation device is located above the concentrated photovoltaic thermal assembly, the concentrated photovoltaic thermal assembly is connected to the tracking rotation shaft, the tracking rotation shaft is connected to the connecting rod, and the connecting rod is connected to the push rod;

[0011] The concentrated photovoltaic thermal component is connected to the hot water supply module and the cold water supply module.

[0012] A further improvement of the present invention is that the upper surface of the concentrated photovoltaic thermal assembly is a light collecting surface, and a solar energy tracking controller is arranged on the side wall of the concentrated photovoltaic thermal assembly.

[0013] A further improvement of the present invention is that the detection device also includes a detection platform and a photovoltaic maximum power tester connected to the concentrating photovoltaic thermal assembly; the detection device also includes a reciprocating telescopic machine, a hot water supply module, a cold water supply module and a photovoltaic maximum power tester installed on the detection platform.

[0014] A further improvement of the present invention is that the temperature of water in the hot water supply module is ≥55°C, and the temperature of water in the cold water supply module is ≤25°C.

[0015] A further improvement of the present invention is that the solar energy simulation device includes a solar simulator and a guide rail; the guide rail is curved, and the position of the first solar simulator on the guide rail, the position of the second solar simulator on the guide rail, and the position of the third solar simulator on the guide rail, wherein the position of the first solar simulator on the guide rail is directly above the concentrating photovoltaic thermal component, the position of the second solar simulator on the guide rail is on one side above the concentrating photovoltaic thermal component and is at a set angle to the vertical direction, and the position of the third solar simulator on the guide rail is on the other side above the concentrating photovoltaic thermal component and is at a set angle to the vertical direction.

[0016] A further improvement of the present invention is that the water outlet pipe of the concentrated photovoltaic thermal assembly is divided into two paths, one path is connected to the water inlet pipe of the concentrated photovoltaic thermal assembly through the hot water supply module, and the other path is connected to the water inlet pipe of the concentrated photovoltaic thermal assembly through the cold water supply module.

[0017] A method for detecting the quality of a concentrated photovoltaic thermal component comprises the following steps:

[0018] When the outlet pipe temperature of the CPV thermal module is ≤ the low temperature setting value, the solar simulator is located directly above the CPV thermal module, one side above the CPV thermal module is at a set angle to the vertical direction, and the other side above the CPV thermal module is at a set angle to the vertical direction. The CPV thermal module is used to concentrate light, and the first initial output power of the CPV thermal module is tested to be Q 1i , the second initial output power is Q 2i , the third initial output power is Q 3i , i represents the initial value;

[0019] When the push rod 3.2 performs the first reciprocating motion, the hot water supply module is started and the cold water supply module is closed. If the outlet pipe temperature of the concentrated photovoltaic thermal component 1) is ≤ the high temperature setting value, the hot water supply module is closed and the cold water supply module is started to continue monitoring the outlet pipe temperature of the concentrated photovoltaic thermal component. If the outlet pipe temperature of the concentrated photovoltaic thermal component is ≤ the low temperature setting value, the cold water supply module is closed to complete the first cycle, and then the push rod starts the second reciprocating motion. This cycle ends after 7500 times.

[0020] The relative error of the output electric power of the CPV thermal module before and after 7500 times is calculated. If the relative error of the output electric power is less than the threshold, the quality of the CPV thermal module meets the requirements, otherwise it does not meet the requirements.

[0021] A further improvement of the present invention is that the high temperature setting value is 75° C., the low temperature setting value is 15° C., and the setting angle is 10-75°.

[0022] A further improvement of the present invention is that the completion time of each cycle does not exceed 15 seconds; the threshold value is 15%.

[0023] A further improvement of the present invention is that the relative error of the output electric power of the concentrated photovoltaic thermal assembly before and after 7500 times includes a first relative error of the output electric power, a second relative error of the output electric power and a third relative error of the output electric power;

[0024] η 1 =IQ 1i -Q 1e Ⅰ / Q 1i ×100%;

[0025] η 2 =IQ 2i –Q 2e Ⅰ / Q 2i ×100%;

[0026] η 3 =IQ 3i –Q 3e Ⅰ / Q 3i ×100%;

[0027] Where η 1 is the relative error of the first output power, η 2 is the relative error of the second output power, η 3 is the relative error of the third output electric power.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] In the present invention, by connecting the concentrating photovoltaic thermal assembly to the tracking rotating shaft, the tracking rotating shaft to the connecting rod, and the connecting rod to the push rod, the concentrating photovoltaic thermal assembly can swing back and forth, and after simulating 7500 reciprocating motions, the output electric power of the concentrating photovoltaic thermal assembly under the irradiation of the solar simulator before and after 7500 reciprocating operations can be calculated, and the relative difference between the two output electric powers can be calculated. If the relative error of the output electric power is less than the threshold, the quality of the concentrating photovoltaic thermal assembly meets the requirements, otherwise it does not meet the requirements, and the mechanical wear of the concentrating photovoltaic thermal assembly tracking mechanical equipment is serious or the strength does not meet the requirements, and the life and quality evaluation of the mechanical parts and water pipelines in the whole life cycle of the concentrating photovoltaic thermal assembly is realized. In the present invention, the power output performance of the tracking mechanical equipment and the cold and hot alternating operation in the concentrating photovoltaic thermal assembly can be evaluated after 7500 times (25 years × 300 times / year), and at the same time, it is also through the electrical output to evaluate whether the tracking mechanical equipment meets the life after 25 years of operation, and the power output performance evaluation of the whole life cycle of the concentrating photovoltaic thermal assembly is realized. The present invention provides a method that can be used in a delivery room for its entire life cycle of 25 years, which subverts the traditional on-site installation, debugging, testing and long-term verification of concentrated photovoltaic thermal devices. It can quickly evaluate the quality of power output, pipelines, pipeline connectors and tracking mechanical equipment throughout the entire life cycle of concentrated photovoltaic thermal components, thereby saving such product development cycle and quality assessment costs.

[0030] In the present invention, by calculating the relative error of the output electric power of the concentrated photovoltaic thermal assembly before and after 7500 times, if the relative error of the output electric power is less than the threshold value, the quality of the concentrated photovoltaic thermal assembly 1 meets the requirement, otherwise it does not meet the requirement, so that the quality of the concentrated photovoltaic thermal assembly products can be sampled and inspected under industrial mass production conditions. By introducing a new detection method, the mechanical life and quality, water pipe life and quality, and power output performance of the concentrated photovoltaic thermal assembly over its entire life cycle of 25 years can be detected within 32 hours. This not only helps to strictly control the product quality of the concentrated photovoltaic thermal assembly on the indoor industrial production line, but can also greatly reduce the production cost of concentrated photovoltaic thermal parts, equipment and assemblies, and improve product development and production speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0032] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0033] Among them, 1 is a concentrated photovoltaic thermal component; 1.1 is a lighting surface; 1.2 is a solar tracking controller; 1.3 is a tracking rotation axis; 1.4 is a connecting rod; 2 is a solar simulation device; 2.1 is a solar simulator; 2.2 is a solar simulator rail; P1 is the position of the first solar simulator on the rail; P2 is the position of the second solar simulator on the rail; P3 is the position of the third solar simulator on the rail; 3 is a reciprocating telescopic machine; 3.1 is a driving module; 3.2 is a push rod; 4 is a hot water supply module; 5 is a cold water supply module; T1 is a temperature sensor; 6 is a photovoltaic maximum power tester; 7 is a data acquisition and control module; 8 is a detection platform. DETAILED DESCRIPTION

[0034] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thoroughly and comprehensively understood.

[0035] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0036] A concentrated photovoltaic thermal module quality detection device of the present invention comprises a concentrated photovoltaic thermal module 1, a solar energy simulation device 2, a reciprocating telescopic machine 3, a hot water supply module 4, a cold water supply module 5, a photovoltaic maximum power tester 6, a data acquisition and control module 7 and a detection platform 8;

[0037] The hot water supply module 4 is a high temperature end, and the temperature of the water in the hot water supply module 4 is ≥55°C, and generally does not exceed 80°C.

[0038] The cold water supply module 5 is a low temperature end, and the temperature of the water in the cold water supply module 5 is ≤25°C, and the lowest temperature may be -15°C.

[0039] The reciprocating telescopic machine 3 , the hot water supply module 4 , the cold water supply module 5 and the photovoltaic maximum power tester 6 are respectively connected and installed on the detection platform 8 .

[0040] The upper surface of the concentrated photovoltaic thermal assembly 1 is a lighting surface 1.1. A solar tracking controller 1.2 is arranged on the side wall of the concentrated photovoltaic thermal assembly 1. The concentrated photovoltaic thermal assembly 1 is connected to a tracking rotation shaft 1.3. The tracking rotation shaft 1.3 is connected to a connecting rod 1.4. Figure 1 In the figure, the solar tracking controller 1.2 is arranged between the concentrated photovoltaic thermal component 1 and the tracking rotation axis 1.3. The figure is only a schematic diagram. The solar tracking controller 1.2 only needs to be connected to the concentrated photovoltaic thermal component 1 and does not need to be arranged between the concentrated photovoltaic thermal component 1 and the tracking rotation axis 1.3. The solar tracking controller 1.2 is used to drive the concentrated photovoltaic thermal component 1 to track the solar simulator 2.1.

[0041] The solar energy simulation device 2 comprises a solar energy simulator 2.1 and a guide rail 2.2.

[0042] A solar simulator 2 is installed above the lighting surface 1.1 of the concentrating photovoltaic thermal component 1. The solar simulator 2.1 of the solar simulator 2 is installed on a guide rail 2.2. The guide rail 2.2 is a curve. The guide rail 2.2 is provided with three positions, namely, position P1 of the first solar simulator on the guide rail, position P2 of the second solar simulator on the guide rail, and position P3 of the third solar simulator on the guide rail. The solar simulator 2.1 slides and switches among these three positions. Among them, the position P1 of the first solar simulator on the guide rail is directly above the concentrating photovoltaic thermal component 1, the position P2 of the second solar simulator on the guide rail is located on one side above the concentrating photovoltaic thermal component 1 and is at a set angle to the vertical direction, and the position P3 of the third solar simulator on the guide rail is located on the other side above the concentrating photovoltaic thermal component 1 and is at a set angle to the vertical direction.

[0043] The setting angle in the present invention is 10-75°, and 65° is taken as an example for explanation.

[0044] The solar tracking controller 1.2 is connected to the tracking rotating shaft 1.3, the tracking rotating shaft 1.3 is connected to the connecting rod 1.4, the connecting rod 1.4 is connected to the push rod 3.2 of the reciprocating telescopic machine 3, the push rod 3.2 is connected to the reciprocating telescopic machine driving module 3.1, the reciprocating telescopic mechanism driving module 3.1 drives the push rod 3.2 to telescope left and right, driving the connecting rod 1.4 to swing left and right, and then driving the tracking rotating shaft 1.3 to move forward and reverse, the forward and reverse angle is ±65°, and then driving the lighting surface 1.1 of the concentrating photovoltaic thermal component 1 to be located at three positions, namely, the position P1 of the first solar simulator on the guide rail, the position P2 of the second solar simulator on the guide rail, and the position P3 of the third solar simulator on the guide rail.

[0045] The concentrated photovoltaic thermal assembly 1 is connected to the hot water supply module 4 and the cold water supply module 5 through a water pipe. The hot water supply module 4 and the cold water supply module 5 are connected in parallel through the water pipe. Specifically, the outlet pipe of the concentrated photovoltaic thermal assembly 1 is divided into two paths, one of which is connected to the water inlet pipe of the concentrated photovoltaic thermal assembly 1 through the hot water supply module 4, and the other is connected to the water inlet pipe of the concentrated photovoltaic thermal assembly 1 through the cold water supply module 5. When the hot water supply module 4 and the cold water supply module 5 are in operation, the pressure in the water pipe is ≥1.0MPa, and a temperature sensor T1 is set at the outlet pipe of the concentrated photovoltaic thermal assembly 1. If T1≤75℃, the hot water supply module 4 is turned off, and the cold water supply module 5 is started, and the temperature sensor T1 is continuously monitored. If T1≤15℃, the cold water supply module 5 is turned off, and the first cycle is completed. The data acquisition and control module 7 records the completion of one cycle, and then the push rod 3.2 starts the second reciprocating motion, and the cycle ends after 7500 times, wherein the completion time of a single cycle does not exceed 15 seconds.

[0046] The concentrated photovoltaic thermal component 1 is connected to the positive and negative poles of the photovoltaic maximum power tester 6 via a cable. When the solar simulator 2.1 in the solar simulation device 2 emits light once, the photovoltaic maximum power tester 6 detects the electric power of the concentrated photovoltaic thermal component 1.

[0047] The solar simulator 2.1, the telescopic machine driving module 3.1, the hot water supply module 4, the cold water supply module 5 and the photovoltaic maximum power tester 6 are respectively connected to the data acquisition and control module 7 through signal lines.

[0048] A method for detecting the quality of a concentrated photovoltaic and thermal assembly in the present invention comprises the following steps:

[0049] The reciprocating telescopic machine 3 reciprocates 7500 times as the basis for judging the full life cycle of the concentrated photovoltaic thermal module:

[0050] 1) Before the reciprocating telescopic machine 3 works, the data acquisition and control module 7 sends a command through the signal line to start the cold water supply module 5, and the concentrated photovoltaic thermal component 1 is used for concentration. When the temperature of the temperature sensor T1 is ≤15°C, the solar simulator 2.1 is at the position P1 of the first solar simulator on the guide rail, the position P2 of the second solar simulator on the guide rail, and the position P3 of the third solar simulator on the guide rail to emit light, and the photovoltaic maximum power tester 6 respectively tests that the first initial output electric power of the concentrated photovoltaic thermal component 1 is Q 1i The second initial output power is Q 2i And the third initial output power is Q 3i , and record the result in the data acquisition and control module 7. Wherein, i is the first letter of initial, indicating the initial value.

[0051] 2) When the reciprocating telescopic machine 3 is working, the data acquisition and control module 7 sends instructions through the signal line, the photovoltaic maximum power tester 6 and the solar energy simulation device 2 are in standby state, the reciprocating telescopic machine 3 is started, and when the push rod 3.2 performs the first reciprocating motion, the hot water supply module 4 is started, and the cold water supply module 5 is turned off. At the same time, the temperature sensor T1 is monitored. If T1≤75℃, the hot water supply module 4 is turned off, and the cold water supply module 5 is started. The temperature sensor T1 continues to be monitored. If T1≤15℃, the cold water supply module 5 is turned off to complete the first cycle. The data acquisition and control module 7 records the completion of one cycle, and then the push rod 3.2 starts the second reciprocating motion. This cycle ends after 7500 times, and the completion time of a single cycle does not exceed 15 seconds.

[0052] 3) When the reciprocating telescopic machine 3 stops working, the data acquisition and control module 7 sends a command through the signal line, and the solar simulator 2.1 is respectively at the position P1 of the first solar simulator 2.1 on the guide rail, the position P2 of the second solar simulator 2.1 on the guide rail, and the position P3 of the third solar simulator on the guide rail to emit light, and the photovoltaic maximum power tester 6 respectively tests that the first completed output power of the concentrated photovoltaic thermal component 1 is Q 1e , the second completed output power Q 2e , the third complete output power Q 3e , and record the result in the data acquisition and control module 7 to complete the operation. Wherein, e is the first letter of end, indicating the completion value.

[0053] Obtain the relative error of the output power of the corresponding position of the concentrated photovoltaic thermal module 1 before and after 7500 operations, and judge the wear effect of the tracking mechanical equipment in the module after 7500 reciprocating motions and hot and cold alternations based on the relative error of the output power (because the 7500 operations and hot and cold alternations deformed 7500 times, the tracking mechanical equipment in the module must be worn, resulting in a larger tracking angle than before). When the relative error is ≤15%, the quality requirements are met, otherwise, the quality requirements are not met. Among them, the calculation formula for the relative error of the output power is:

[0054] η 1 =IQ 1i -Q 1e Ⅰ / Q 1i ×100%;

[0055] η 2 =IQ 2i –Q 2e Ⅰ / Q 2i ×100%;

[0056] η 3 =IQ 3i –Q 3e Ⅰ / Q 3i ×100%.

[0057] Where η 1 is the relative error of the first output power, η 2 is the relative error of the second output power, η 3 is the relative error of the third output electric power.

[0058] 4) After the operation is completed, check whether the tracking mechanism and components in the concentrated photovoltaic thermal assembly 1 are damaged, and check whether the water pipes and water pipe joints inside the concentrated photovoltaic thermal assembly 1 are damaged and leaking. If there is leakage, it means that the strength of the pipe or joint is not good and needs to be replaced. If there is no leakage, it means that it is usable and proceed to the next step.

[0059] Example 1

[0060] See also Figure 1 For a concentrated photovoltaic thermal module with a size of 1600×1200×300, the concentrated photovoltaic thermal module quality detection method includes the following steps:

[0061] 1. As the module has an automatic tracking device, before 7500 tests, 1.4 and 3.2 are disconnected, and the solar simulator 2.1 is respectively at the position P1 of the first solar simulator on the rail, the position P2 of the second solar simulator on the rail, and the position P3 of the third solar simulator on the rail. The module automatically tracks these three positions and tests three electric powers, which are the first initial output electric power of Q1i , the second initial output power is Q 2i , the third initial output power is Q 3i .

[0062] 2. Connect the connecting rod 1.4 with the push rod 3.2, and perform 7500 reciprocating telescopic motion simulation tracking and 7500 hot and cold alternating operations (one reciprocating telescopic motion and one hot and cold alternating operation, and so on until each is completed 7500 times). On the one hand, determine whether there is leakage between the heat exchange pipeline and the pipeline interface. Then, on the other hand, disconnect the connecting rod 1.4 from the push rod 3.2. The solar simulator 2.1 is again at the position P1 of the first solar simulator on the guide rail, the position P2 of the second solar simulator on the guide rail, and the position P3 of the third solar simulator on the guide rail. The component automatically tracks these three positions again, and tests the three electrical powers. The first completed output electrical power is Q 1e , the second completed output power Q 2e And the third completed output power Q 3e .

[0063] 3. Evaluation method: (You can first determine whether there is a leakage and then determine the power output performance, or you can first determine the electricity and then determine whether there is a leakage. Suddenly, I think it may be better to determine whether there is a leakage first. Assuming there is a leakage, the power output performance will no longer be measured to save time. The following is carried out according to the process of first determining whether there is a leakage and then determining the power output performance).

[0064] 1) For leakage, after 7500 tests, check whether there is leakage in the heat exchange pipes and pipe interfaces inside the component, and generally judge whether there is liquid leakage on the outer surface of the component;

[0065] Assuming leakage, the quality of the component throughout its life cycle does not meet the requirements;

[0066] Assuming there is no leakage, go to step 2).

[0067] 2) In terms of power, for example, at the position P1 of the first solar simulator on the rail, assuming Q 1i =40W, Q 1e =30W, then the relative difference is:

[0068] |40-30|÷40×100%=25%>15%, then the quality of the tested CPV thermal module throughout its life cycle does not meet the requirements;

[0069] Assume Q 1i =40W, Q 1e =35W, then the relative difference is:

[0070] |40-35|÷40×100%=12.5%<15%, then the quality of the CPV thermal module throughout its life cycle meets the requirements;

[0071] It is estimated that the time for one reciprocating motion + one hot and cold alternation, that is, the time to complete one cycle, is 15 seconds, 15 seconds / time × 7500 times ÷ 3600 hours / second = 31.25 hours, that is, within 32 hours, the quality inspection of the power, water pipelines and tracking mechanical equipment of the components of the entire life cycle can be completed indoors, and a preliminary judgment on their lifespan can be made.

[0072] That is, after 7500 operations (or 25 years), the module pipelines and pipe joints are leak-free, and the tracking mechanical equipment in the concentrated photovoltaic thermal module 1 meets the tracking requirements.

[0073] The present invention realizes sampling inspection of the quality of concentrated photovoltaic thermal components under industrial mass production conditions. By introducing a new detection method, the mechanical life and quality, water pipe life and quality, and power output performance of the concentrated photovoltaic thermal components over their entire life cycle of 25 years can be detected within 32 hours. This not only helps to strictly control the product quality of concentrated photovoltaic thermal components on indoor industrial production lines, but can also greatly reduce the production cost of concentrated photovoltaic thermal parts, equipment, and components, and improve product development and production speed.

[0074] The present invention is aimed at a new type of concentrated photovoltaic and solar thermal energy packaged into a component product in a small modular manner. The length, width and height of a single component are about 1600×1200×200 (unit: mm). The solar simulator, reciprocating telescopic machine 3, and hot and cold alternating input equipment can be arranged in advance in the factory to simulate operation for 25 years throughout the life cycle.

[0075] The reciprocating telescopic machine 3 is mainly used for motion simulation of component tracking machinery. It uses the reciprocating telescopic machine to drive the tracking mechanical equipment inside the component. After running throughout its life cycle, the tracking mechanical equipment will be worn out, which will lead to insufficient accuracy in tracking the sun, which is reflected in the power output level. That is, before the simulation 25 years ago, the output electrical performance will be larger.

[0076] The hot and cold alternating input device is the hot water supply module 4 and the cold water supply module 5 in the present invention. Cold water or hot water is injected into the hot and cold supply module 4 and the cold water supply module 5. It is mainly for simulating the hot and cold alternating operation of the heat exchange pipeline in the concentrating photovoltaic thermal component 1. Because when there is sunshine during the day, the temperature of the heat exchange pipeline in the concentrating photovoltaic thermal component 1 is high, and there is no sunshine at night, and the temperature of the heat exchange pipeline in the concentrating photovoltaic thermal component 1 is low. There is at least one hot and cold alternation a day, and the hot and cold alternation will cause the heat exchange pipeline and pipeline joints in the concentrating photovoltaic thermal component 1 to be damaged by thermal expansion and contraction.

[0077] The heat exchange pipes and pipe joints of the concentrated photovoltaic thermal component 1 are also affected by the operation of the reciprocating telescopic machine 3 (which is actually also a tracking mechanical movement). The 7500 times of full life cycle tracking mechanical movement is bound to cause the heat exchange pipes to bend back and forth to cause them to age too quickly, or to tear off the pipe joints, etc., resulting in leakage. Because the heat exchange medium is introduced into the component, generally water with a pressure of 1.0Mpa, leakage (water) is very taboo in engineering. Even if the component has a high thermoelectric output performance and is very cheap, once leakage (water) occurs, the concentrated photovoltaic thermal component 1 does not meet the quality requirements.

[0078] The above description is only for the best embodiment of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. However, all changes made within the protection scope of the independent claims of the present invention are within the protection scope of the present invention.

[0079] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

Claims

1. A concentrated photovoltaic and thermal module quality detection device, characterized in that: It comprises a concentrated photovoltaic and thermal energy assembly (1), a tracking rotation axis (1.3), a connecting rod (1.4), a solar energy simulation device (2), a reciprocating telescopic machine (3), a hot water supply module (4) and a cold water supply module (5); The reciprocating telescopic machine (3) comprises a reciprocating telescopic machine drive module (3.1) and a push rod (3.2) connected to each other; The solar energy simulation device (2) is located above the concentrated photovoltaic thermal assembly (1), the concentrated photovoltaic thermal assembly (1) is connected to the tracking rotation axis (1.3), the tracking rotation axis (1.3) is connected to the connecting rod (1.4), and the connecting rod (1.4) is connected to the push rod (3.2); The concentrated photovoltaic thermal assembly (1) is connected to a hot water supply module (4) and a cold water supply module (5).

2. The concentrated photovoltaic and thermal assembly quality detection device according to claim 1, characterized in that: The upper surface of the concentrated photovoltaic thermal assembly (1) is a lighting surface (1.1), and a solar tracking controller (1.2) is arranged on the side wall of the concentrated photovoltaic thermal assembly (1).

3. The concentrated photovoltaic and thermal assembly quality detection device according to claim 1, characterized in that: The detection device also includes a detection platform (8) and a photovoltaic maximum power tester (6) connected to the concentrated photovoltaic thermal assembly (1); the detection device also includes a reciprocating telescopic machine (3), a hot water supply module (4), a cold water supply module (5) and a photovoltaic maximum power tester (6) installed on the detection platform (8).

4. The concentrated photovoltaic and thermal assembly quality detection device according to claim 1, characterized in that: The temperature of water in the hot water supply module (4) is ≥55°C, and the temperature of water in the cold water supply module (5) is ≤25°C.

5. The concentrated photovoltaic and thermal assembly quality detection device according to claim 1, characterized in that: The solar energy simulation device (2) comprises a solar energy simulator (2.1) and a guide rail (2.2); the guide rail (2.2) is curved, and the position (P1) of the first solar energy simulator on the guide rail, the position (P2) of the second solar energy simulator on the guide rail, and the position (P3) of the third solar energy simulator on the guide rail (2.2), wherein the position (P1) of the first solar energy simulator on the guide rail is directly above the concentrating photovoltaic thermal component (1), the position (P2) of the second solar energy simulator on the guide rail is located on one side above the concentrating photovoltaic thermal component (1) and is at a set angle to the vertical direction, and the position (P3) of the third solar energy simulator on the guide rail is located on the other side above the concentrating photovoltaic thermal component (1) and is at a set angle to the vertical direction.

6. The concentrated photovoltaic and thermal assembly quality detection device according to claim 1, characterized in that: The water outlet pipe of the concentrated photovoltaic thermal assembly (1) is divided into two paths, one path is connected to the water inlet pipe of the concentrated photovoltaic thermal assembly (1) via the hot water supply module (4), and the other path is connected to the water inlet pipe of the concentrated photovoltaic thermal assembly (1) via the cold water supply module (5).

7. A method for detecting the quality of a concentrated photovoltaic thermal assembly based on the device of any one of claims 1 to 6, characterized in that: The following steps are involved: When the outlet pipe temperature of the concentrated photovoltaic thermal component 1) is ≤ the low temperature setting value, the solar simulator (2.1) is respectively located directly above the concentrated photovoltaic thermal component (1), and one side above the concentrated photovoltaic thermal component (1) is at a set angle position with respect to the vertical direction, and the other side above the concentrated photovoltaic thermal component (1) is at a set angle position with respect to the vertical direction, and light is concentrated through the concentrated photovoltaic thermal component (1), and the first initial output electric power of the tested concentrated photovoltaic thermal component (1) is Q 1i , the second initial output power is Q 2i , the third initial output power is Q 3i , i represents the initial value; When the push rod (3.2) performs the (1)th reciprocating motion, the hot water supply module (4) is started and the cold water supply module (5) is turned off. If the temperature of the water outlet pipe of the concentrated photovoltaic thermal component 1) is less than or equal to the high temperature setting value, the hot water supply module (4) is turned off and the cold water supply module (5) is started to continue monitoring the temperature of the water outlet pipe of the concentrated photovoltaic thermal component (1). If the temperature of the water outlet pipe of the concentrated photovoltaic thermal component (1) is less than or equal to the low temperature setting value, the cold water supply module (5) is turned off to complete the first cycle. Then the push rod (3.2) starts the second reciprocating motion. This cycle ends after 7500 times. The relative error of the output electric power of the concentrated photovoltaic thermal assembly before and after 7500 times is calculated. If the relative error of the output electric power is less than a threshold value, the quality of the concentrated photovoltaic thermal assembly (1) meets the requirements, otherwise it does not meet the requirements.

8. The method for detecting quality of concentrated photovoltaic and thermal components according to claim 7, characterized in that: The high temperature setting value is 75°C, the low temperature setting value is 15°C; the setting angle is 10-75°.

9. The method for detecting quality of concentrated photovoltaic and thermal components according to claim 7, characterized in that: Each cycle takes no longer than 15 seconds to complete; the threshold is 15%.

10. The method for detecting quality of concentrated photovoltaic and thermal components according to claim 7, characterized in that: The relative error of the output electric power of the concentrated photovoltaic thermal assembly before and after 7500 times includes the first output electric power relative error, the second output electric power relative error and the third output electric power relative error; η1=ⅠQ 1i -Q 1e Ⅰ / Q 1i ×100%; η2=ⅠQ 2i –Q 2e Ⅰ / Q 2i ×100%; η3=ⅠQ 3i –Q 3e Ⅰ / Q 3i ×100%; Wherein, η1 is the first output electric power relative error, η2 is the second output electric power relative error, and η3 is the third output electric power relative error.

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