CN211372803U - Solar water heater anti-freezing system for gas-liquid direct contact heat exchange - Google Patents
Solar water heater anti-freezing system for gas-liquid direct contact heat exchange Download PDFInfo
- Publication number
- CN211372803U CN211372803U CN201921940867.XU CN201921940867U CN211372803U CN 211372803 U CN211372803 U CN 211372803U CN 201921940867 U CN201921940867 U CN 201921940867U CN 211372803 U CN211372803 U CN 211372803U
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- gas
- direct contact
- solar
- contact heat
- temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a solar water heater system of preventing frostbite of gas-liquid direct contact heat transfer, including solar collector, utilize high-temperature gas with the direct contact heat exchanger of water direct contact circulation heat exchange in the solar collector in order to improve the temperature degree in the solar collector, through the solenoid valve with the gas storage tank of the high-temperature gas entry connection of direct contact heat exchanger, through the gas booster pump with the geothermol power buried pipe that the gas storage tank is connected. The utility model discloses the utilization is filled into the geothermal energy in the gaseous absorption soil of geothermol power buried pipe to low temperature water in the mode heating solar collector of gas-liquid direct contact heat transfer prevents that low temperature weather solar collector from appearing freezing the phenomenon, and the heat transfer is fast, efficient, the energy saving.
Description
Technical Field
The utility model relates to a gas-liquid mixture heat transfer field, concretely relates to solar water heater system of preventing frostbite of gas-liquid direct contact heat transfer.
Background
In recent years, solar water heaters have been rapidly popularized due to the advantages of energy conservation, environmental protection, safety, convenience and the like. However, in some areas, due to the low temperature in winter or the rainy and snowy weather, the heat collector components are easy to freeze and the surface of the heat collector components is easily covered by accumulated snow, and particularly, the heat collector tubes in the water heater are easy to freeze by water in the heat collector tubes, so that the heat collector tubes are frozen. For flat plate solar heat collection, an antifreezing fluid type water heater is generally adopted, and the antifreezing fluid absorbs solar heat and then indirectly exchanges heat with water, so that the heat exchange efficiency is reduced. The emptying anti-freezing measures require manual intervention, which not only consumes time and energy of people, but also causes waste of water resources.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solar water heater system of preventing frostbite to the technical defect who exists among the prior art of gas-liquid direct contact heat transfer. The system utilizes the high-temperature and high-pressure gas which absorbs terrestrial heat and is pressurized to directly contact with the low-temperature water in the solar heat collector for heat exchange, has high heat exchange efficiency, and solves the anti-freezing problem of the system in low-temperature weather. In the time period of insufficient solar energy and frequent use of hot water, the operating time of the anti-freezing system can be increased by adjusting the parameters of the temperature control system, additional heat is provided for the solar heat collector, and the operating efficiency of the whole solar water heater system is improved.
For realizing the utility model discloses a technical scheme that the purpose adopted is:
a solar water heater anti-freezing system for gas-liquid direct contact heat exchange comprises:
the solar energy heat collector comprises a solar energy heat collector, a direct contact heat exchanger which utilizes direct contact circulating heat exchange of high-temperature gas and low-temperature water in the solar energy heat collector to improve the temperature of the low-temperature water in the solar energy heat collector, a gas storage box which is connected with a high-temperature gas inlet of the direct contact heat exchanger through an electromagnetic valve, and a geothermal buried pipe which is connected with the gas storage box through a gas booster pump.
Further, the inlet of the geothermal buried pipe is connected with the air outlet of the inflation device.
The circulating water outlet of the solar heat collector is connected with the liquid inlet of the direct contact heat exchanger, and the circulating water inlet of the solar heat collector is connected with the outlet of the direct contact heat exchanger.
The solar water heater anti-freezing system for gas-liquid direct contact heat exchange further comprises a controller connected with the electromagnetic valve, and the controller is connected with a temperature sensor used for detecting the temperature of water in the solar heat collector.
Wherein the direct contact heat exchanger is a venturi-type high efficiency mixer.
The utility model discloses a solar water heater system of preventing frostbite of gas-liquid direct contact heat transfer, make full use of natural environment's available solar energy and soil energy, the mode that adopts gas-liquid direct contact heat transfer is to the low temperature water heating in the solar collector, and heat exchange efficiency is high, has solved the freezing problem of low temperature weather solar collector winter, has improved whole solar water heater's operating efficiency, the water economy resource.
Drawings
Fig. 1 is a structural diagram of the antifreeze system of the solar water heater for gas-liquid direct contact heat exchange of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
As shown in fig. 1, the utility model discloses a solar water heater system of preventing frostbite of gas-liquid direct contact heat transfer, including aerating device 1, geothermol power buried pipe 2, gas booster pump 3, gas storage tank 4, solenoid valve 5, direct contact heat exchanger 6, solar collector 7, blow vent 8, temperature sensor 9, controller 10.
A gas inlet of the direct contact heat exchanger 6 is connected with an outlet of the gas storage tank 4 through an electromagnetic valve 5, a liquid inlet of the direct contact heat exchanger 6 is connected with a circulating water outlet of the solar heat collector 7, and an outlet of the direct contact heat exchanger 6 is connected with a circulating water inlet of the solar heat collector 7; an inlet of the geothermal buried pipe 2 is connected with the inflating device 1, an outlet of the geothermal buried pipe 2 is connected with an inlet of the gas booster pump 3, and an outlet of the gas booster pump 3 is connected with an inlet of the gas storage tank 4.
Wherein, the cable of the temperature sensor 9 for detecting the temperature of the water in the solar heat collector 7 and the cable of the electromagnetic valve 5 for controlling the flow of the high-temperature gas entering the direct contact heat exchanger 6 from the gas storage tank are connected to a controller 10, and the controller 10 controls the opening and closing of the electromagnetic valve 5 according to the data of the temperature sensor 9. Wherein, the controller 10, the electromagnetic valve 5 and the temperature sensor 9 form a temperature control device of the system.
The direct contact heat exchanger 6 is a Venturi type high-efficiency mixer, negative pressure lower than the atmosphere is generated at a liquid inlet after high-pressure gas flows through a gas inlet, a pipeline connected with the liquid inlet also has negative pressure to generate suction force, water sucked from the liquid inlet is fully mixed with the gas sucked from the gas inlet, high-temperature gas and the water sucked from the liquid inlet are subjected to direct contact heat exchange in the mixing process, and a medium after the heat exchange flows back to the solar heat collector 7 through an outlet of the direct contact heat exchanger 6.
When the system is operated, the inflation device 1 inflates the geothermal buried pipe 2, and when the gas of the geothermal buried pipe 2 reaches a preset pressure, the inflation device 1 stops inflating. The geothermal buried pipe 2 absorbs the heat of the soil to heat the gas in the pipe, and the heated gas becomes high-temperature high-pressure gas after being pressurized by the gas booster pump 3 and enters the gas storage tank 4 to be stored. The controller 10 reads temperature data from a temperature sensor 9 in the solar thermal collector 7, when the read temperature data is smaller than the preset temperature a of the controller 10, the controller 10 controls the electromagnetic valve 5 to be conducted, at the moment, high-temperature and high-pressure gas in the gas storage tank 4 enters the direct contact heat exchanger 6, the high-pressure gas flow enables a liquid inlet of the direct contact heat exchanger 6 to generate negative pressure lower than atmosphere, water at a circulating outlet of the solar thermal collector 7 connected with the liquid inlet is pumped out to enter the direct contact heat exchanger 6 to be subjected to direct contact heat exchange with high-temperature gas sprayed from the gas inlet, medium flow after heat exchange flows out from an outlet of the direct contact heat exchanger 6 and flows into the solar thermal collector 7 again. The above-described operation is repeated until the water temperature in the solar heat collector 7 reaches the temperature b preset by the controller 10, and the electromagnetic valve 5 is closed to stop heating.
By adjusting the preset temperature in the controller 10, the temperatures a and b at which the solenoid valve 5 is opened and closed are increased within a reasonable range, so that the low-temperature water in the solar collector 7 can be continuously heated, and additional heat can be provided for the solar collector 7 during insufficient solar energy or frequent use of hot water.
The utility model discloses utilize the geothermal energy in the soil to the low-temperature water in the mode heating solar collector of gas-liquid direct contact heat transfer, heat exchange efficiency is high, has solved the problem that low temperature weather solar collector water is easily frozen, and can provide extra heat for solar collector in the time of using hot water frequently or solar energy not enough, has improved whole solar water heater's operating efficiency, water economy resource.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a solar water heater system of preventing frostbite of gas-liquid direct contact heat transfer which characterized by includes:
the solar energy heat collector comprises a solar energy heat collector, a direct contact heat exchanger which utilizes direct contact circulating heat exchange of high-temperature gas and low-temperature water in the solar energy heat collector to improve the temperature of the low-temperature water in the solar energy heat collector, a gas storage box which is connected with a high-temperature gas inlet of the direct contact heat exchanger through an electromagnetic valve, and a geothermal buried pipe which is connected with the gas storage box through a gas booster pump.
2. The antifreeze system of solar water heater with direct gas-liquid contact heat exchange of claim 1, wherein the inlet of the geothermal buried pipe is connected with the outlet of the air charging device.
3. The antifreeze system of the solar water heater with the gas-liquid direct contact heat exchange function as claimed in claim 1, wherein the circulating water outlet of the solar heat collector is connected with the liquid inlet of the direct contact heat exchanger, and the circulating water inlet of the solar heat collector is connected with the outlet of the direct contact heat exchanger.
4. The anti-freezing system of the solar water heater with the direct gas-liquid contact heat exchange function as claimed in claim 1, further comprising a controller connected with the electromagnetic valve, wherein the controller is connected with a temperature sensor for detecting the temperature of water in the solar heat collector.
5. The antifreeze system for solar water heater with direct gas-liquid contact heat exchange as claimed in claim 1, wherein said direct contact heat exchanger is a venturi type high efficiency mixer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940867.XU CN211372803U (en) | 2019-11-11 | 2019-11-11 | Solar water heater anti-freezing system for gas-liquid direct contact heat exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921940867.XU CN211372803U (en) | 2019-11-11 | 2019-11-11 | Solar water heater anti-freezing system for gas-liquid direct contact heat exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211372803U true CN211372803U (en) | 2020-08-28 |
Family
ID=72151448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921940867.XU Expired - Fee Related CN211372803U (en) | 2019-11-11 | 2019-11-11 | Solar water heater anti-freezing system for gas-liquid direct contact heat exchange |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211372803U (en) |
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2019
- 2019-11-11 CN CN201921940867.XU patent/CN211372803U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200828 Termination date: 20211111 |
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| CF01 | Termination of patent right due to non-payment of annual fee |