Shielding assembly of solar heat collector

Abstract

The utility model belongs to the technical field of heat energy, and discloses a shielding assembly of a solar heat collector. The solar heat collector shielding assemblies are arranged on the solar heat collector header and used for shielding the solar heat collectors, the two solar heat collectors are arranged on the left side and the right side of the solar heat collector header, and each solar heat collector is provided with one solar heat collector shielding assembly in a matched mode. The solar heat collector shielding assembly comprises two rotating shafts, the two rotating shafts are arranged on the two sides of the solar heat collector correspondingly, one rotating shaft is sleeved with a sunshade roller blind, one end of the rotating shaft is connected with the output end of a motor A, and the other end of the rotating shaft is connected with a driven wheel; one end of the other rotating shaft is sleeved with a gear, and the other end is provided with a driving wheel; the gear is connected with the output end of a motor B. The driving wheel and the driven wheel are connected through a chain, and the motor A and the motor B are one-way motors. And the pipe explosion condition of the solar heat collector in the idle sunning state due to environmental factors is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of thermal energy and relates to a solar collector shielding component. Background Art

[0002] A solar thermal collector is a device that uses solar radiation heat energy to convert solar energy into thermal energy by absorption and conversion. Its main components include collectors, heat transfer media, heat storage devices and piping systems.

[0003] Solar collectors usually consist of a black absorber surface, which is usually coated with a special coating to increase its heat absorption capacity. When sunlight hits the absorber surface, the absorber absorbs solar energy and converts it into heat energy, causing the absorber surface temperature to rise and be transferred to the heat storage device through the piping system. The heat transfer medium circulates through the piping system, forming a closed cycle of heat transfer between the collector and the heat storage device.

[0004] When the solar collector system is working, the heat in the collector is circulated in the heat storage device through the circulation of the heat transfer medium in the pipeline system. If the pipeline circulation system fails and shuts down or the system does not operate for a long time, there is no water in the solar collector vacuum tube, that is, in the empty state, the temperature of the collector vacuum tube can reach about 250 degrees Celsius. If there is no water for a long time, the vacuum tube will burst, seriously affecting the normal operation of the system. Therefore, it is necessary to develop a component that does not need to block the solar collector for a long time, so as to ensure the long-term stable operation of the solar collector system and extend the service life to achieve the purpose of saving. Utility Model Content

[0005] The purpose of the utility model is to overcome the deficiencies in the above-mentioned background technology, to provide a solar collector shielding component to ensure the long-term stable operation of the solar collector, and to solve the problem of pipe bursting in the empty sun state of the solar collector due to environmental factors.

[0006] The technical solution adopted by the utility model to solve its technical problems is: a solar collector shielding component, the solar collector shielding component is arranged on the solar collector header, the solar collector shielding component is used to shield the solar collector, two solar collectors are arranged on the left and right sides of the solar collector header, each solar collector is equipped with a solar collector shielding component, the solar collector shielding component includes two rotating shafts, the two rotating shafts are respectively arranged on both sides of the solar collector, a sunshade roller blind is sleeved on one of the rotating shafts, one end of the rotating shaft is connected to the output end of the motor A, and the other end is connected to the driven wheel; a gear is sleeved on one end of the other rotating shaft, and a driving wheel is arranged on the other end of the rotating shaft; the gear is connected to the output end of the motor B, the driving wheel and the driven wheel are connected by a chain, the motor A and the motor B are unidirectional motors, one is a forward motor, and the other is a reverse motor.

[0007] The rotating shaft is arranged on the solar collector header through a bearing and a fixing bracket.

[0008] A guide groove for guiding the sunshade roller blind is also arranged on the solar collector header.

[0009] A temperature sensor is arranged at the water outlet of the solar collector.

[0010] The two rotating shafts are set at different heights, and the rotating shaft connected to motor A is set at a higher height than the rotating shaft connected to motor B.

[0011] Motor A and motor B are respectively arranged at the bottom of the solar collector header through motor fixing brackets.

[0012] The component is also equipped with a PLC control system, and the temperature sensor, motor A, and motor B are respectively connected to the PLC control system.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The solar collector shielding component provided by the utility model has a simple structure, is easy to operate, reduces costs, and ensures that the temperature in the solar collector is in a controllable state to avoid the collector from being exposed to the sun and bursting tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 The utility model is a schematic diagram of a solar collector shielding component.

[0017] In the figure, 1. solar collector header, 2. solar collector, 3. water outlet, 4. water inlet, 5. temperature sensor, 6. motor A, 7. motor B, 8. fixing bracket, 9. chain, 10. sunshade roller blind. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings, but the present invention is not limited to the following embodiments.

[0019] Example 1

[0020] A solar collector shielding component, such as Figure 1 As shown, the solar collector shielding assembly is arranged on the solar collector header 1, and the solar collector shielding assembly is used to shield the solar collector 2. Two solar collectors 2 are arranged on the left and right of the solar collector header 1, and each solar collector 2 is equipped with a solar collector shielding assembly. The solar collector shielding assembly includes two rotating shafts, and the two rotating shafts are respectively arranged on both sides of the solar collector 2. A sunshade roller blind 10 is sleeved on one of the rotating shafts, and one end of the rotating shaft is connected to the output end of the motor A 6, and the other end is connected to the driven wheel; a gear is sleeved on one end of the other rotating shaft, and a driving wheel is arranged on the other end of the rotating shaft; the gear is connected to the output end of the motor B 7, and the driving wheel and the driven wheel are connected by a chain 9. The motor A 6 and the motor B 7 are unidirectional motors, one is a forward motor, and the other is a reverse motor.

[0021] The rotating shaft is arranged on the solar collector header 1 through a bearing and a fixing bracket 8 .

[0022] A guide groove for guiding the sunshade roller blind 10 is also provided on the solar collector header 1 .

[0023] A temperature sensor 5 is provided at the water outlet 3 of the solar collector 2 .

[0024] The two rotating shafts are set at different heights, and the rotating shaft connected to the motor A 6 is set at a higher height than the rotating shaft connected to the motor B 7.

[0025] Motor A 6 and motor B 7 are respectively arranged at the bottom of the solar collector header 1 through motor fixing brackets.

[0026] The assembly is also equipped with a PLC control system, and the temperature sensor 5, motor A 6, and motor B 7 are connected to the PLC control system respectively. There is no restriction on a specific model, as long as the working function is achieved.

[0027] A temperature detector 5 (temperature setting 150 degrees Celsius) is set at the outlet of the water outlet 3. If the temperature is detected to be over 150 degrees Celsius, the drive motor A 6 drives the shaft to open the sunshade roller blind 10 to block the solar collector, and the guide groove guides the movement. If the temperature detected by the temperature detector is lower than 150 degrees Celsius, the motor B 7 drives the gear, and then drives the driving wheel of the other building of the shaft, and then the transmission chain drives the shaft to recycle the sunshade roller blind 10. Avoid the glass vacuum tube of the solar collector from bursting due to high temperature exposure.

[0028] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A solar collector shielding assembly, characterized in that: The solar collector shielding assembly is arranged on a solar collector header (1), and is used to shield a solar collector (2). Two solar collectors (2) are arranged on the left and right sides of the solar collector header (1), and each solar collector (2) is equipped with a solar collector shielding assembly. The solar collector shielding assembly comprises two rotating shafts, which are arranged on both sides of the solar collector (2), respectively. A sunshade roller blind (10) is sleeved on one of the rotating shafts, and one end of the rotating shaft is connected to the output end of a motor A (6), and the other end is connected to a driven wheel; a gear is sleeved on one end of the other rotating shaft, and a driving wheel is arranged on the other end of the rotating shaft; the gear is connected to the output end of a motor B (7), and the driving wheel and the driven wheel are connected by a chain (9); the motor A (6) and the motor B (7) are unidirectional motors, one is a forward motor, and the other is a reverse motor.

2. A solar collector shielding assembly as claimed in claim 1, characterized in that: The rotating shaft is arranged on the solar collector header (1) via a bearing and a fixing bracket (8).

3. A solar collector shielding assembly as claimed in claim 1, characterized in that: A temperature sensor (5) is arranged at the water outlet (3) of the solar thermal collector (2).

4. A solar collector shielding assembly as claimed in claim 1, characterized in that: The two rotating shafts are set at different heights.

5. A solar collector shielding assembly as claimed in claim 1, characterized in that: The motor A (6) and the motor B (7) are respectively arranged at the bottom of the solar collector header (1) through motor fixing brackets.

6. A solar collector shielding assembly as claimed in claim 4, characterized in that: The height of the rotating shaft connected to the motor A (6) is higher than the height of the rotating shaft connected to the motor B (7).

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