CN209991628U - Solar heat collecting device with automatic anti-freezing function - Google Patents
Solar heat collecting device with automatic anti-freezing function Download PDFInfo
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- CN209991628U CN209991628U CN201920334045.0U CN201920334045U CN209991628U CN 209991628 U CN209991628 U CN 209991628U CN 201920334045 U CN201920334045 U CN 201920334045U CN 209991628 U CN209991628 U CN 209991628U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model discloses a solar heat collection device with automatic function of preventing frostbite belongs to solar heat collection device technical field. The utility model discloses a water storage unit, thermal-arrest board unit, automatically controlled unit and circulation unit: the water storage unit comprises a water inlet valve, a water storage tank, a water outlet valve and a vent pipe; the circulating unit comprises a motor and consists of a water pump, a two-position three-way valve, a one-way valve and a pipeline for connecting all the parts; the heat collecting plate unit comprises a heat collecting plate and a water collecting tank. The electric control unit comprises a controller, a pressure sensor, a heat collecting plate temperature sensor, a water tank temperature sensor and the like. The utility model has no antifreezing medium, is safe and efficient, and the outdoor heat collecting plate in the utility model adopts evacuation and freeze prevention, thus thoroughly eliminating the problem of freeze; and the adopted types and the number of the elements are less, and the system is simple and reliable.
Description
Technical Field
The utility model relates to a solar heat collection device with function of preventing frostbite belongs to solar heat collection device technical field.
Background
The existing balcony split type solar heat collecting plate is arranged outdoors, the water storage and control system is arranged indoors, the installation is convenient, the building height is not limited, and the application of the balcony split type solar heat collecting plate is gradually widened. In the area with outdoor temperature lower than 0 ℃ in winter, the split solar water heating system has the biggest problem of preventing the outdoor heat collecting plate from being frozen.
At present, a common antifreeze hot water system is shown in fig. 1. The anti-freezing liquid is used as a heat exchange medium, when the temperature of the anti-freezing liquid in the heat collection plate is higher than that of water in the water storage tank, the control unit starts the water pump, the anti-freezing liquid circularly flows in the heat collection plate and the heat exchange pipe, heat in the heat exchange pipe is brought to the water storage tank, and the heating effect is achieved. The disadvantages of this solution are: firstly, antifreeze is used as a heat exchange medium to indirectly heat water, and the efficiency is low after one heat exchange process. And secondly, the antifreezing solution is a toxic medium, is volatile in the using process, is unfavorable for health, and needs to be maintained and supplemented in daily use. And thirdly, the freezing point of the antifreeze liquid still exists, and the antifreeze liquid still freezes when the temperature is lower than the freezing point of the antifreeze liquid in extreme low-temperature weather.
The invention patent CN102589165B of Chinese authorization discloses a series replacement constant temperature anti-freezing solar water heater system, wherein a heat collector and a non-pressure-bearing storage type heat-preservation water tank are connected in series, and the relative positions of the two devices, which are simple in system structure, can be high, low, flexible and convenient; the whole system does not adopt any other medium, realizes zero-power consumption anti-freezing by matching of a mechanical valve and utilizing the energy of tap water, and realizes high-speed and high-efficiency heat exchange by adopting a brand-new replacement heat exchange method; the water temperature in the water tank can be controlled and preset, and the utilization rate of hot water reaches hundreds. Compared with the traditional solar water heater, the solar water heater has the advantages of cost and higher cost performance. But the anti-freezing function is completed by realizing an anti-freezing mode through the waterway switching valve, the waterway switching valve cannot be automatically switched, the risk that water in the heat collecting plate cannot be completely discharged exists, and the possibility of frost cracking still exists. The discharged water cannot be used, and waste exists.
The invention patent CN104764230B issued in China discloses an anti-freezing solar water supply device, which comprises a solar heat collection box, a water tank and a water mixing valve, wherein the water outlet of the solar heat collection box and the water outlet of the water tank are respectively connected to the hot water inlet and the cold water inlet of the water mixing valve through sleeves, a heat absorption and release pipe is also arranged on the sleeves, and a phase change medium is filled in the heat absorption and release pipe; the upper end of the solar heat collection box and the upper end of the water tank are also connected with a pressure difference adjusting pipe, and a heat insulation adjusting sheet sliding along the length direction of the pressure difference adjusting pipe is arranged on the pressure difference adjusting pipe. The water supply device is additionally provided with the heat absorption and release pipe and the pressure difference adjusting pipe, and the pressure difference of the cold and hot water tanks is balanced by sliding the heat insulation adjusting sheet at the position of the pressure difference adjusting pipe, so that cold water in the cold water tank flows into the sleeve, the circulating temperature difference is increased, the flow of water in the pipe is promoted, and the aim of preventing the water pipe from being frozen and incapable of flowing is fulfilled. The device only realizes the anti-freezing function to the pipeline, and does not add the anti-freezing function to the outdoor heat collecting tank. And the anti-freezing heat comes from absorbed solar radiation energy, and if the heat in the heat collection box is lost at the subzero temperature and in the environment without illumination for many days, the heat in the heat collection box is lost, and both the heat collection box and the pipeline can be frozen.
Disclosure of Invention
In order to overcome the shortcomings of the prior art, the utility model provides a solar heat collection device with automatic anti-freezing function, which is safe, efficient, non-toxic and harmless and can automatically realize the anti-freezing function.
The utility model discloses a realize through following technical scheme: a solar heat collection device with an automatic anti-freezing function comprises a water storage unit, a heat collection plate unit, an electric control unit and a circulating unit:
the water storage unit is used for storing hot water and comprises a water storage tank, wherein the water storage tank is provided with a water inlet A, a water outlet B, a circulating water inlet C and a circulating water outlet D, the water inlet A is connected with a water inlet valve, the water inlet valve is connected with a water source, the water outlet B is connected with a water outlet valve, the upper part of the water storage tank is provided with a vent pipe for communicating the interior of the water storage tank with the atmosphere, the interior of the water storage tank is provided with an inner pipeline, the upper port of the inner pipeline is higher than the liquid level;
the heat collecting plate unit comprises a heat collecting plate and a water collecting tank, the heat collecting plate is provided with an inlet E and an outlet F, and the outlet F is communicated with the water collecting tank through a pipeline;
the electric control unit comprises a controller, a pressure sensor arranged on the water collecting tank, a heat collecting plate temperature sensor arranged on the heat collecting plate and a water tank temperature sensor arranged on the water storage tank;
the circulating unit is used for heat exchange between the water storage unit and the heat collecting plate unit and comprises a water pump, a motor used for driving the water pump, a two-position three-way valve and a one-way valve, a circulating water outlet D and the one-way valve of the water storage tank are connected with an inlet E of the heat collecting plate through the two-position three-way valve and a pipeline, and the water collecting tank is connected with a circulating water inlet C of the water storage tank through the pipeline and the water pump.
Further, the water tank temperature sensor is connected with the input end of the controller and is used for inputting a detected water tank temperature signal T14 to the controller; the heat collecting plate temperature sensor is connected with the input end of the controller and is used for inputting a detected heat collecting plate temperature signal T9 to the controller; the pressure sensor is connected with the input end of the controller and is used for inputting the detected pressure signal P6 in the water collection tank to the controller;
the two-position three-way valve is connected with the output end of the controller, and the motor is connected with the output end of the controller; when the controller detects that T9 is larger than T14, the controller energizes the two-position three-way valve, the valve core moves to connect the circulating water outlet D of the water storage tank and the heat collecting plate inlet E, the interface of the two-position three-way valve and the one-way valve is closed, and then the controller controls the motor to start; when the controller detects that T9 is less than or equal to T14, the controller cuts off the power of the two-position three-way valve electromagnetic valve, the valve core resets, the one-way valve is communicated with the heat collecting plate inlet E, the interface between the two-position three-way valve and the circulating water outlet D of the water storage tank is closed, and the controller keeps the motor powered on; when the controller detects that the pressure P6 is greater than 0, the controller continuously keeps the motor powered on, and when P6 is equal to 0, the controller powers off the motor.
Further, the water tank temperature sensor is connected with the input end of the controller and is used for inputting a detected water tank temperature signal T14 to the controller; the heat collecting plate temperature sensor is connected with the input end of the controller and is used for inputting a detected heat collecting plate temperature signal T9 to the controller; the pressure sensor is connected with the input end of the controller and is used for inputting the detected pressure signal P6 in the water collection tank to the controller;
the two-position three-way valve is connected with the output end of the controller, and the motor is connected with the output end of the controller; when the controller detects that T9 is larger than T14, the controller energizes the two-position three-way valve, the valve core moves to connect the circulating water outlet D of the water storage tank and the heat collecting plate inlet E, the interface of the two-position three-way valve and the one-way valve is closed, and then the controller controls the motor to start;
when the controller detects that T9 is less than or equal to T14, the controller cuts off the power of the two-position three-way valve, the valve core resets, the one-way valve is connected with the inlet E of the heat collecting plate, the interface between the two-position three-way valve and the circulating water outlet D of the water storage tank is closed, and at the moment, the controller cuts off the power of the motor; when the controller detects that T9 is less than or equal to 5 ℃, the controller energizes the motor 4, and when the controller detects that the pressure P6 is 0, the motor is de-energized.
Alternatively, the inlet valve is a manually or automatically controlled valve.
As an alternative embodiment, the heat collecting plate temperature sensor is embedded in a solid shell inside the heat collecting plate.
As an alternative embodiment, the heat collecting plate temperature sensor is arranged in the hollow fluid channel in the heat collecting plate in a suspending way.
Further, the position of the water collection tank is lower than the position of the heat collection plate.
Furthermore, the water pump with self-suction capability is selected as the water pump.
The utility model has the advantages that: the device of the utility model has no antifreezing medium, is safe and efficient, is nontoxic and harmless, and does not need maintenance in the using process; the outdoor heat collecting plate in the device adopts evacuation and freeze prevention, and can thoroughly eliminate the problem of freeze; the utility model discloses can realize the function of preventing frostbite automatically, the component kind and the quantity that adopt are less moreover, and the system is simple, reliable.
Drawings
The invention will be further explained below with reference to the drawings and examples.
FIG. 1 is a prior art antifreeze solar thermal collector;
fig. 2 is a view showing the structure of the device of the present invention.
In the figure: 1-water inlet valve, 2-water storage tank, 3-controller, 4-motor, 5-water pump, 6-pressure sensor, 7-water collection tank, 8-heat collection plate, 9-heat collection plate temperature sensor, 10-two-position three-way valve, 11-one-way valve, 12-water outlet valve, 13-vent pipe, 14-water tank temperature sensor, 15-heat exchanger and 16-inner pipeline.
Detailed Description
The present invention will be further described with reference to the following examples.
As shown in fig. 2, the solar heat collection device with automatic anti-freezing function includes a water storage unit, a heat collection plate unit, an electric control unit and a circulation unit: the water storage unit is used for storing hot water and comprises a water storage tank 2, wherein the water storage tank 2 is provided with a water inlet A, a water outlet B, a circulating water inlet C and a circulating water outlet D, the water inlet A is connected with a water inlet valve 1, the water inlet valve 1 is connected with a water source, the water outlet B is connected with a water outlet valve 12, a vent pipe 13 for communicating the inside of the water storage tank 2 with the atmosphere is arranged at the upper part of the water storage tank 2, and non-pressure-bearing water. An inner pipeline 16 is arranged in the water storage tank 2, the upper opening of the inner pipeline 16 is higher than the liquid level, and the lower opening of the inner pipeline 16 is connected with the circulating water inlet C.
The heat collecting plate unit comprises a heat collecting plate 8 and a water collecting tank 7, the heat collecting plate 8 has an inlet E and an outlet F, and the outlet F is communicated with the water collecting tank 7 through a pipeline.
The electric control unit comprises a controller 3, a pressure sensor 6 arranged on the water collecting tank 7, a heat collecting plate temperature sensor 9 arranged on the heat collecting plate 8, and a water tank temperature sensor 14 arranged on the water storage tank 2.
The circulating unit is used for heat exchange between the water storage unit and the heat collecting plate unit and comprises a water pump 5, a motor 4 used for driving the water pump 5, a two-position three-way valve 10 and a one-way valve 11, a circulating water outlet D and the one-way valve 11 of the water storage tank 2 are connected with an inlet E of the heat collecting plate 8 through the two-position three-way valve 10 and a pipeline, and the water collecting tank 7 is connected with a circulating water inlet C of the water storage tank 2 through the pipeline and the water pump 5.
Further, the water tank temperature sensor 14 is connected to an input end of the controller 3, and is configured to input a detected water tank temperature signal T14 to the controller 3; the heat collecting plate temperature sensor 9 is connected with the input end of the controller 3 and is used for inputting a detected heat collecting plate temperature signal T9 to the controller 3; the pressure sensor 6 is connected with an input end of the controller 3 and is used for inputting a detected pressure signal P6 in the water collecting tank 7 to the controller 3;
the two-position three-way valve 10 is connected with the output end of the controller 3, and the motor 4 is connected with the output end of the controller 3; when the controller 3 detects that T9 is greater than T14, the controller 3 enables the two-position three-way valve 10 to be powered on, the valve core moves to enable the circulating water outlet D and the heat collecting plate inlet E of the water storage tank 2 to be connected, the interface between the two-position three-way valve 10 and the one-way valve 11 is closed, and then the controller 3 controls the motor 4 to be started; when the controller 3 detects that T9 is not more than T14, the controller 3 cuts off the electromagnetic valve of the two-position three-way valve 10, the valve core is reset, the one-way valve 11 is communicated with the heat collecting plate inlet E, the interface of the two-position three-way valve 10 and the circulating water outlet D of the water storage tank 2 is closed, and the controller 3 keeps the motor 4 electrified; when the controller 3 detects that the pressure P6 is greater than 0, the motor 4 continues to be energized, and when P6 is equal to 0, the controller 3 de-energizes the motor 4.
The water tank temperature sensor 14 is connected with the input end of the controller 3 and is used for inputting a detected water tank temperature signal T14 to the controller 3; the heat collecting plate temperature sensor 9 is connected with the input end of the controller 3 and is used for inputting a detected heat collecting plate temperature signal T9 to the controller 3; the pressure sensor 6 is connected with an input end of the controller 3 and is used for inputting a detected pressure signal P6 in the water collecting tank 7 to the controller 3; the model of the controller: STC89C52 singlechip of STC company can be selected; or 51 series single-chip microcomputers such as 82C51 and 89C51 are selected. The temperature sensor can be selected from: MF53-503F-3950 and 600L type temperature sensors sold by Xinjiang electronics technology, Inc. of Dongguan city; or a ZL-013 type temperature sensor sold by Qingdao Langlan electronics company Limited can be waterproof. The pressure sensor can be selected from: the CS400 or P1103 pressure sensors sold by shanghai feng sensor instruments ltd.
The two-position three-way valve 10 is provided with three waterway interfaces, when the two-position three-way valve 10 is powered off, the one-way valve 11 communicated with the atmosphere is communicated with the heat collecting plate inlet E, and at the moment, the interfaces of the two-position three-way valve 10 and the circulating water outlet D of the water storage tank 2 are closed; when the two-position three-way valve 10 is electrified, the valve core moves to the right, the circulating water outlet D of the water storage tank 2 and the heat collecting plate inlet E are communicated, and at the moment, the interfaces of the two-position three-way valve 10 and the one-way valve 11 are closed.
The two-position three-way valve 10 is connected with the output end of the controller 3, and the motor 4 is connected with the output end of the controller 3; when the controller 3 detects that T9 is greater than T14, the controller 3 enables the two-position three-way valve 10 to be powered on, the valve core moves to enable the circulating water outlet D and the heat collecting plate inlet E of the water storage tank 2 to be connected, the interface between the two-position three-way valve 10 and the one-way valve 11 is closed, and then the controller 3 controls the motor 4 to be started;
when the controller 3 detects that T9 is not more than T14, the controller 3 cuts off the power of the two-position three-way valve 10, the valve core resets, the one-way valve 11 is communicated with the heat collecting plate inlet E, the interface between the two-position three-way valve 10 and the circulating water outlet D of the water storage tank 2 is closed, and at the moment, the controller 3 cuts off the power of the motor 4; when the controller 3 detects that T9 is less than or equal to 5 ℃, the controller 3 energizes the motor 4, and when the controller 3 detects that the pressure P6 is 0, the motor 4 is de-energized.
Alternatively, the inlet valve 1 is a manual valve or an automatically controlled valve. The water outlet valve 12 is opened, and when the final water using end is lower than the water storage tank 2, hot water naturally flows out; if the final water end is higher than the water storage tank 2, the device is provided with an automatic booster pumping device to ensure normal water supply.
As an alternative embodiment, said heat collecting plate temperature sensor 9 is embedded in a solid shell inside said heat collecting plate 8.
As an alternative embodiment, the heat collecting plate temperature sensor 9 is suspended in a hollow fluid passage inside the heat collecting plate 8. In the heat collecting process of the embodiment, the temperature of water flowing through the heat collecting plate is detected; the temperature of the air inside the fluid passage is detected in the non-heat collecting process.
Further, the position of the water collection tank 7 is lower than the position of the heat collection plate 8.
Further, the water pump 5 is a water pump with self-suction capability.
A solar heat collecting and antifreezing method adopting the solar heat collecting device with the automatic antifreezing function,
the heat collection method comprises the following steps:
when the controller 3 detects that T9 is larger than T14, a heat collection program is started, the controller 3 powers on the two-position three-way valve 10, the valve core moves to the right, the circulating water outlet D of the water storage tank 2 and the heat collection plate inlet E are connected, and the interface of the two-position three-way valve 10 and the one-way valve 11 is closed; then the controller 3 controls the motor 4 to start to drive the water pump 5 to carry out heat collection circulation; the low-temperature water flows through the two-position three-way valve 10 from the circulating water outlet D of the water storage tank and then flows to the inlet E of the heat collecting plate 8, after the water flow absorbs heat in the heat collecting plate 8, the high-temperature water flows out of the outlet F of the heat collecting plate 8 to the water collecting tank 7, then flows to the water pump 5 and then is pumped back to the circulating water inlet C of the water storage tank 2, and then returns to the position above the liquid level through the inner pipeline 16. During the circulation, the temperature in the heat collecting plate 8 is lowered and the temperature of the water in the water storage tank 2 is gradually raised.
The anti-freezing method comprises the following steps:
when the controller 3 detects that T9 is not more than T14, the heat collection process is stopped, the controller 3 cuts off the electromagnetic valve of the two-position three-way valve 10, the valve core moves leftwards to reset, the one-way valve 11 communicated with the atmosphere is communicated with the inlet E of the heat collection plate, and the interface between the two-position three-way valve 10 and the circulating water outlet D of the water storage tank 2 is closed; at the moment, the controller 3 keeps the motor 4 powered on, and under the action of the suction force of the water pump 5, air enters from the one-way valve 11, passes through the two-position three-way valve 10 and then enters the heat collecting plate 8, so that water in the heat collecting plate 8 is pumped back to the water storage tank 2; the water collection tank 7 is lower than the heat collection plate 8, thereby preferentially ensuring that the air reserved in the heat collection plate 8 does not retain water.
The controller 3 detects that the pressure P6 is greater than 0 through the pressure sensor 6, judges that water is reserved in the water collecting tank 7, then continuously keeps the motor 4 electrified, and the water pump 5 continuously pumps the water in the pipeline back to the water storage tank 2; when P6 is equal to 0, the controller 3 switches off the motor 4 and stops pumping water. At this time, the whole outdoor part has no water remained, thereby realizing complete freezing prevention.
As an optional scheme, the anti-freezing method is replaced by the following steps:
when the controller 3 detects that T9 is not more than T14, the heat collection process is stopped, the controller 3 cuts off the power of the two-position three-way valve 10, the valve core moves leftwards to reset, the one-way valve 11 communicated with the atmosphere is communicated with the heat collection plate inlet E, and the interface between the two-position three-way valve 10 and the circulating water outlet D of the water storage tank 2 is closed; at the moment, the controller 3 cuts off the power of the motor 4, the water pump 5 stops working, and the heat collection circulation stops.
When the controller 3 detects that the outdoor temperature T9 is less than or equal to 5 ℃ through the heat collecting plate temperature sensor 9, the anti-freezing mode is automatically started, at the moment, the controller 3 energizes the motor 4, air enters from the one-way valve 11 under the suction action of the water pump 5, enters the heat collecting plate 8 through the two-position three-way valve 10, water in the heat collecting plate 8 is pumped back to the water storage tank 2, and when the controller 3 detects that the pressure P6 is 0 through the pressure sensor 6, the motor 4 is powered off, and water pumping is stopped. At this time, the whole outdoor part has no water remained, thereby realizing complete freezing prevention.
The utility model has no antifreezing medium, is safe and efficient, and the outdoor heat collecting plate in the utility model adopts evacuation and freeze prevention, thus thoroughly eliminating the problem of freeze; and the adopted types and the number of the elements are less, and the system is simple and reliable. The simple transformation to the above scheme all falls into the utility model discloses within the scope of protection.
Claims (8)
1. The utility model provides a solar heat collection device with automatic function of preventing frostbite which characterized in that:
the solar water heater comprises a water storage unit, a heat collection plate unit, an electric control unit and a circulating unit:
the water storage unit is used for storing hot water and comprises a water storage tank (2), wherein the water storage tank (2) is provided with a water inlet A, a water outlet B, a circulating water inlet C and a circulating water outlet D, the water inlet A is connected with a water inlet valve (1), the water inlet valve (1) is connected with a water source, the water outlet B is connected with a water outlet valve (12), a vent pipe (13) for communicating the inside of the water storage tank (2) with the atmosphere is arranged at the upper part of the water storage tank (2), an inner pipeline (16) is arranged inside the water storage tank (2), the upper port of the inner pipeline (16) is higher than the liquid level, and the lower port of the;
the heat collecting plate unit comprises a heat collecting plate (8) and a water collecting tank (7), the heat collecting plate (8) is provided with an inlet E and an outlet F, and the outlet F is communicated with the water collecting tank (7) through a pipeline;
the electric control unit comprises a controller (3), a pressure sensor (6) arranged on the water collecting tank (7), a heat collecting plate temperature sensor (9) arranged on the heat collecting plate (8) and a water tank temperature sensor (14) arranged on the water storage tank (2);
the circulation unit is used for heat exchange between the water storage unit and the heat collection plate unit and comprises a water pump (5), a motor (4) used for driving the water pump (5), a two-position three-way valve (10) and a one-way valve (11), a circulation water outlet D and the one-way valve (11) of the water storage tank (2) are connected with an inlet E of the heat collection plate (8) through the two-position three-way valve (10) and a pipeline, and a circulation water inlet C of the water storage tank (2) is connected with a water collection tank (7) through the pipeline and the water pump (5).
2. The solar heat collection device with automatic antifreeze function as claimed in claim 1, wherein: the water tank temperature sensor (14) is connected with the input end of the controller (3) and is used for inputting a detected water tank temperature signal T14 to the controller (3); the heat collecting plate temperature sensor (9) is connected with the input end of the controller (3) and is used for inputting a detected heat collecting plate temperature signal T9 to the controller (3); the pressure sensor (6) is connected with the input end of the controller (3) and is used for inputting a detected pressure signal P6 in the water collecting tank (7) to the controller (3);
the two-position three-way valve (10) is connected with the output end of the controller (3), and the motor (4) is connected with the output end of the controller (3).
3. The solar heat collection device with automatic antifreeze function as claimed in claim 1, wherein: the water tank temperature sensor (14) is connected with the input end of the controller (3) and is used for inputting a detected water tank temperature signal T14 to the controller (3); the heat collecting plate temperature sensor (9) is connected with the input end of the controller (3) and is used for inputting a detected heat collecting plate temperature signal T9 to the controller (3); the pressure sensor (6) is connected with the input end of the controller (3) and is used for inputting a detected pressure signal P6 in the water collecting tank (7) to the controller (3);
the two-position three-way valve (10) is connected with the output end of the controller (3), and the motor (4) is connected with the output end of the controller (3).
4. The solar heat collecting device with automatic freeze protection function according to claim 1 or 2, wherein: the water inlet valve (1) is a manual valve or an automatic control valve.
5. The solar heat collecting device with automatic freeze protection function according to claim 1 or 2, wherein: the heat collecting plate temperature sensor (9) is embedded in a solid shell inside the heat collecting plate (8).
6. The solar heat collecting device with automatic freeze protection function according to claim 1 or 2, wherein: the heat collecting plate temperature sensor (9) is arranged in the hollow fluid passage in the heat collecting plate (8) in a suspending manner.
7. The solar heat collecting device with automatic freeze protection function according to claim 1 or 2, wherein: the position of the water collecting tank (7) is lower than that of the heat collecting plate (8).
8. The solar heat collecting device with automatic freeze protection function according to claim 1 or 2, wherein: the water pump (5) is a water pump with self-suction capability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334045.0U CN209991628U (en) | 2019-03-17 | 2019-03-17 | Solar heat collecting device with automatic anti-freezing function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920334045.0U CN209991628U (en) | 2019-03-17 | 2019-03-17 | Solar heat collecting device with automatic anti-freezing function |
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| CN209991628U true CN209991628U (en) | 2020-01-24 |
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| CN201920334045.0U Expired - Fee Related CN209991628U (en) | 2019-03-17 | 2019-03-17 | Solar heat collecting device with automatic anti-freezing function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798681A (en) * | 2019-03-17 | 2019-05-24 | 徐州工程学院 | The antifreeze method of solar energy heat collector and thermal-arrest with automatic freezing-protective function |
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2019
- 2019-03-17 CN CN201920334045.0U patent/CN209991628U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798681A (en) * | 2019-03-17 | 2019-05-24 | 徐州工程学院 | The antifreeze method of solar energy heat collector and thermal-arrest with automatic freezing-protective function |
| CN109798681B (en) * | 2019-03-17 | 2024-04-16 | 徐州工程学院 | Solar heat collecting device with automatic antifreezing function and heat collecting antifreezing method |
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