CN218297599U - Laboratory thermal performance detection equipment for solar water heating system - Google Patents
Laboratory thermal performance detection equipment for solar water heating system Download PDFInfo
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- CN218297599U CN218297599U CN202221594516.XU CN202221594516U CN218297599U CN 218297599 U CN218297599 U CN 218297599U CN 202221594516 U CN202221594516 U CN 202221594516U CN 218297599 U CN218297599 U CN 218297599U
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Abstract
The utility model relates to a laboratory thermal performance detection device of a solar water heating system, which comprises a test device and an environment control device which are arranged indoors, wherein the test device comprises an artificial solar simulator, a heat collector to be detected and a temperature regulating water tank which are positioned below the artificial solar simulator; the heat collector to be tested is laid on the support, the support is rotationally connected to the supporting rod through the cross double-shaft motor, the supporting rod is fixed on the indoor ground, and the support is driven by the cross double-shaft motor to freely rotate in the left-right direction and the up-down direction; the temperature regulating water tank is connected with the heat collector to be tested through a pipeline to realize heat transfer working medium circulation, and a total solar radiation meter is arranged on the support and in parallel with a lighting port of the heat collector to be tested. The laboratory thermal performance detection equipment for the solar water heating system solves the problem that solar detection is influenced by external environment, and improves the detection efficiency; the artificial sun can repeatedly carry out the test, and the repeatability of the detection is realized; the influence of an external inspection environment is reduced, and the accuracy of the detection data is improved.
Description
Technical Field
The utility model belongs to the technical field of the check out test set and specifically relates to a solar water heating system laboratory thermal behavior check out test set.
Background
The solar water heating system thermal performance laboratory detection needs to build a heat collector test bed outdoors, manually or automatically tracks the solar azimuth angle or altitude angle for detection, is obviously influenced by the external environment, particularly limits the working efficiency of the solar laboratory detection to a certain extent due to the requirements of wind speed and irradiance, and is difficult to ensure the accuracy of the data because the acquired data result is closely related to the environmental condition. In summary, the current detection apparatus and method mainly have the following disadvantages:
(1) The detection equipment is generally arranged in an unshielded space such as a roof and the like, and is influenced by external environment, particularly extreme weather such as strong wind, strong rain and the like, so that the equipment is easily damaged, and the service life of the equipment is influenced;
(2) The detection condition requires that the total solar radiation illumination on the lighting surface of the heat collector during the test period is not less than 700W
m 2 The change of the total solar radiation illumination intensity during the test period should be not more than +/-50W/m 2 The requirement on external solar irradiance is high, the working conditions which can meet the test requirement even in fine weather are few, and the thermal performance detection efficiency of the solar water heating system is greatly limited;
(3) The air speed of the surrounding environment during the test period is required to be not higher than 4m/s during detection, no wind speed influence is difficult to ensure in the detection process under an outdoor detection environment, and any influence of wind speed and solar irradiance can cause deviation of collected data;
(4) The main medium of the solar water heating system is water, the thermal performance detection of the solar water heating system is also to test the heat collection efficiency of the solar water heating system through the temperature rise process in the using process of a laboratory simulator, but the method is used for outdoor detection, the solar radiation amount is different in summer and winter, the detection result is difficult to reproduce, and water below 0 ℃ is easy to freeze and cannot be used for detection.
(5) Different working medium inlet temperatures need to be set in the test procedure, the temperature needs to be stabilized within +/-0.1 ℃, and the water tank is large in size, so that the heating time is long, the water temperature is not easy to be accurately and stably controlled in a short time, and the whole test period is long.
(6) Adopt the optical sensor mode to carry out autotracking sun, when outdoor weather sudden change, experimental rotating platform frame can not stop, can the repeated rotation tracking of east west direction on the contrary, causes equipment and test piece to damage easily, influences life.
(7) When the incidence angle correction coefficient is tested, the inlet temperature of the heat transfer working medium of each data point is required to be equal to the ambient temperature
Within +/-1 ℃, the heat transfer working medium is heated by the heat collector and then cooled, and compared with the performance and quality of the test cooler, the whole test period is longer and the service life of the cooler is shortened.
(8) The time constant is experimental, need cover the sunshading board above the heat collector, and the test bench of itself is higher, causes the safety problem easily, and the operation is difficult.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: outdoor external environment has great influence to solar water heating system thermal behavior detection, for the not enough that overcomes prior art exists, provides a solar water heating system laboratory thermal behavior check out test set.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a solar water heating system laboratory thermal behavior check out test set, is including locating indoor testing arrangement and environmental control device, through environmental control device monitoring and the experimental environmental parameter of dynamic adjustment, guarantees test environment's stability.
The testing device comprises an artificial solar simulator, a heat collector to be tested and a temperature regulating water tank which are positioned below the artificial solar simulator,
the heat collector to be tested is laid on the support, the support is connected to the supporting rod through the rotation of the cross double-shaft motor, the supporting rod is fixed on the indoor ground, and the support is driven by the cross double-shaft motor to rotate freely in the left direction, the right direction and the up-down direction.
The temperature regulating water tank is connected with a heat collector to be tested through a pipeline to realize heat transfer working medium circulation,
and a total solar radiation meter is arranged on the support and in parallel with the daylight opening of the heat collector to be tested and used for collecting test data.
Furthermore, the pipeline comprises an inlet pipe from the temperature regulating water tank to the heat collector to be measured and an outlet pipe from the heat collector to be measured to the temperature regulating water tank, the inlet pipe is sequentially provided with a flow control valve, a filter, a working medium observation port, a flowmeter, a temperature regulating device and a working medium inlet temperature sensor, and the outlet pipe is sequentially provided with a working medium outlet temperature sensor, a control valve, a cooling device and a water pump. And a cooling device is arranged to reduce the load pressure of the temperature regulating water tank.
Furthermore, the temperature adjusting device and the cooling device are electrically connected to the control system. The temperature of water is controlled by the temperature adjusting device and the cooling device, and the water entering the heat collector to be tested is controlled to realize constant temperature. The PLC control can be simply realized through the existing computer program.
Furthermore, a branch and a bypass are sequentially arranged between the working medium outlet temperature sensor of the outlet pipe and the water pump, an exhaust valve is arranged on the branch, and the bypass is communicated with a bypass valve arranged on the outlet pipe and the bypass.
Furthermore, the artificial solar simulator is rotationally connected to the driving device through a plurality of telescopic driving rods, the driving device is connected to the lower portion of the cross shaft in a sliding mode through the translation driver, the cross shaft is horizontally fixed to the lifting device, and the lifting device is connected to the indoor side wall in a sliding mode through the translation driving device. The multi-angle rotation and the height change of the artificial solar simulator are realized through the driving device and the lifting device, and the simulation of the solar running track is facilitated.
Further, the environment control device comprises a louver box and an anemometer.
Furthermore, the support adopts extending structure, satisfies not equidimension heat collector and lays. The bracket comprises fixed rods at two sides and a plurality of connecting pipes vertically connected with the fixed rods in the middle, and the connecting pipes comprise nested outer pipes and nested inner pipes.
Furthermore, the outer end of the outer tube is fixed with a stepping motor, the stepping motor is connected with a screw rod assembly fixedly connected with the inner tube, the screw rod assembly comprises a screw rod and a screw nut screwed outside the screw rod, one end of the screw rod is connected to the stepping motor to rotate along with the screw rod, and the outer wall of the screw nut is fixedly connected to the inner tube.
Furthermore, a telescopic sun-shading device is arranged between the bracket and the artificial solar simulator.
The beneficial effects of the utility model are that: the problem that solar energy detection is influenced by the external environment is solved, and the detection efficiency is improved; the artificial sun can be repeatedly tested to realize the reproducibility of detection; the influence of an external inspection environment is reduced, and the accuracy of the detection data is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of the control system of the present invention;
fig. 3 is a schematic structural view of the stent connecting tube of the present invention.
Reference numbers in the figures: 1-an artificial solar simulator, 2-a driving device, 3-a lifting device, 4-a control system, 5-a stepping motor, 6-a heat collector to be tested, 7-a support, 8-a cross double-shaft motor, 9-a louver, 10-an anemograph, 11-an operating room, 12-a temperature regulating water tank, 13-a flow control valve, 14-a filter, 15-a working medium observation port, 16-a flow meter, 17-a temperature regulating device, 18-a working medium inlet temperature sensor, 20-a total solar radiation meter, 21-a working medium outlet temperature sensor, 22-a control valve, 23-a cooling device, 24-a bypass valve, 25-a water pump, 26-an exhaust valve, 71-an outer pipe, 72-an inner pipe, 73-a screw rod and 74-a screw rod nut.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
The laboratory thermal performance detection equipment for the solar water heating system shown in fig. 1-3 comprises a testing device and an environment control device which are arranged indoors, and environmental parameters of a test are monitored and dynamically adjusted through the environment control device, so that the stability of a test environment is ensured; the room is also provided with an operating room 11 which is convenient for users to use.
The testing device comprises an artificial solar simulator 1, a heat collector 6 to be tested and a temperature-regulating water tank 12, wherein the heat collector 6 to be tested is located below the artificial solar simulator 1, and the artificial solar simulator 1 irradiates the heat collector 6 to be tested according to requirements.
The heat collector 6 to be tested is laid on the support 7, the support 7 is rotatably connected to the supporting rod through the cross double-shaft motor 8, the supporting rod is fixed on the indoor ground, and the support 7 can freely rotate in the left-right direction and the up-down direction through the driving of the cross double-shaft motor 8.
And a total solar radiation meter 20 is arranged on the support 7 and in parallel with the lighting port of the heat collector 6 to be tested and used for collecting test data.
The temperature-regulating water tank 12 is connected with the heat collector 6 to be tested through a pipeline to realize heat transfer working medium circulation.
The pipeline comprises an inlet pipe from the temperature regulating water tank 12 to the heat collector 6 to be measured and an outlet pipe from the heat collector 6 to be measured to the temperature regulating water tank 12, wherein the inlet pipe is sequentially provided with a flow control valve 13, a filter 14, a working medium observation port 15, a flowmeter 16, a temperature regulating device 17 and a working medium inlet temperature sensor 18, and the outlet pipe is sequentially provided with a working medium outlet temperature sensor 21, a control valve 22, a cooling device 23 and a water pump 25. A cooling device 23 is provided to reduce the load pressure of the tempering tank 12.
The temperature adjusting device 17 and the cooling device 23 are electrically connected with the control system 4. The temperature of the water is controlled by the temperature adjusting device 17 and the cooling device 23, and the water entering the heat collector 6 to be tested is controlled to realize constant temperature. The PLC control can be simply realized through the existing computer program.
Be equipped with branch road and bypass in proper order between the working medium outlet temperature sensor 21 of exit tube and water pump 25, be equipped with discharge valve 26 on the branch road, the bypass communicates and is equipped with bypass valve 24 on exit tube and bypass.
The artificial solar simulator 1 is rotationally connected to the driving device 2 through a plurality of telescopic driving rods, the driving device 2 is connected below the cross shaft in a sliding mode through the translation driver, the cross shaft is horizontally fixed on the lifting device 3, and the lifting device 3 is connected to an indoor side wall in a sliding mode through the translation driving device. The multi-angle rotation and height change of the artificial solar simulator 1 are realized through the driving device 2 and the lifting device 3, and the simulation of the running track of the sun is facilitated.
The environmental control means comprise a louvre 9 and an anemometer 10.
The support 7 adopts a telescopic structure, and the laying of heat collectors with different sizes is met. The bracket 7 comprises fixing rods at two sides and a plurality of connecting pipes which are vertically connected with the fixing rods and comprise an outer pipe 71 and an inner pipe 72 which are nested.
The outer end of the outer tube is fixed with a stepping motor 5, the stepping motor 5 is connected with a screw rod assembly fixedly connected with the inner tube 72, the screw rod assembly comprises a screw rod 73 and a screw rod nut 74 screwed outside the screw rod 73, one end of the screw rod 73 is connected to the stepping motor 5 to rotate along with the screw rod, and the outer wall of the screw rod nut 74 is fixedly connected to the inner tube 72.
A telescopic sun shading device is arranged between the bracket 7 and the artificial solar simulator 1.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a solar water heating system laboratory thermal behavior check out test set which characterized in that: comprises a test device and an environment control device which are arranged indoors,
the testing device comprises an artificial solar simulator (1), a heat collector (6) to be tested and a temperature regulating water tank (12) which are positioned below the artificial solar simulator (1),
the heat collector (6) to be tested is laid on a bracket (7), the bracket (7) is rotationally connected on a support rod through a cross double-shaft motor (8), the support rod is fixed on the indoor ground,
a total solar radiation meter (20) is arranged on the bracket (7) and in parallel with the daylight opening of the heat collector (6) to be tested,
the temperature-regulating water tank (12) is connected with the heat collector (6) to be tested through a pipeline to realize heat transfer working medium circulation;
the pipeline include that thermoregulation water tank (12) are to the inlet pipe of awaiting measuring heat collector (6) and the exit tube of awaiting measuring heat collector (6) to thermoregulation water tank (12), advance to be equipped with flow control valve (13), filter (14), working medium viewing aperture (15), flowmeter (16), attemperator (17) and working medium import temperature sensor (18) on managing in proper order, be equipped with working medium export temperature sensor (21), control valve (22), cooling device (23) and water pump (25) on the exit tube in proper order.
2. The laboratory thermal performance testing apparatus of a solar water heating system of claim 1, wherein: the temperature adjusting device (17) and the cooling device (23) are electrically connected with the control system (4).
3. The laboratory thermal performance testing apparatus of a solar water heating system of claim 1, wherein: a branch and a bypass are sequentially arranged between the working medium outlet temperature sensor (21) of the outlet pipe and the water pump (25), an exhaust valve (26) is arranged on the branch, and the bypass is communicated with a bypass valve (24) arranged on the outlet pipe and the bypass.
4. The laboratory thermal performance testing apparatus of a solar water heating system of claim 1, wherein: the artificial solar simulator is characterized in that the artificial solar simulator (1) is rotationally connected to the driving device (2) through a plurality of telescopic driving rods, the driving device (2) is connected to the lower portion of the cross shaft in a sliding mode through a translation driver, the cross shaft is horizontally fixed to the lifting device (3), and the lifting device (3) is connected to an indoor side wall in a sliding mode through the translation driving device.
5. A solar water heating system laboratory thermal performance detection apparatus as claimed in claim 1, wherein: the environment control device comprises a shutter box (9) and an anemoscope (10).
6. A solar water heating system laboratory thermal performance detection apparatus as claimed in claim 1, wherein: the support (7) adopts a telescopic structure, the support (7) comprises fixing rods at two sides and a plurality of connecting pipes vertically connected with the fixing rods in the middle, and each connecting pipe comprises an outer pipe (71) and an inner pipe (72) which are nested.
7. The laboratory thermal performance testing apparatus of a solar water heating system according to claim 6, wherein: the outer end of the outer pipe is fixed with a stepping motor (5), the stepping motor (5) is connected with a screw rod assembly fixedly connected with the inner pipe (72), the screw rod assembly comprises a screw rod (73) and a screw nut (74) screwed outside the screw rod (73), one end of the screw rod (73) is connected to the stepping motor (5) to rotate along with the screw rod, and the outer wall of the screw nut (74) is fixedly connected to the inner pipe (72).
8. The laboratory thermal performance testing apparatus of a solar water heating system of claim 1, wherein: a telescopic sun shading device is arranged between the bracket (7) and the artificial solar simulator (1).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221594516.XU CN218297599U (en) | 2022-06-24 | 2022-06-24 | Laboratory thermal performance detection equipment for solar water heating system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221594516.XU CN218297599U (en) | 2022-06-24 | 2022-06-24 | Laboratory thermal performance detection equipment for solar water heating system |
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| CN218297599U true CN218297599U (en) | 2023-01-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117805011A (en) * | 2024-03-01 | 2024-04-02 | 山东龙光天旭太阳能有限公司 | Vacuum heat collecting pipe performance detection device |
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2022
- 2022-06-24 CN CN202221594516.XU patent/CN218297599U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117805011A (en) * | 2024-03-01 | 2024-04-02 | 山东龙光天旭太阳能有限公司 | Vacuum heat collecting pipe performance detection device |
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