CN214746485U - Solar heat pump control system suitable for low temperature environment - Google Patents
Solar heat pump control system suitable for low temperature environment Download PDFInfo
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- CN214746485U CN214746485U CN202121113861.2U CN202121113861U CN214746485U CN 214746485 U CN214746485 U CN 214746485U CN 202121113861 U CN202121113861 U CN 202121113861U CN 214746485 U CN214746485 U CN 214746485U
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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Abstract
The utility model discloses a solar heat pump control system suitable for low temperature environment, which belongs to the technical field of heat pump, comprising a heat preservation water tank, wherein the inner wall of the heat preservation water tank is provided with a water tank temperature sensor, one side wall of the heat preservation water tank is respectively connected with a domestic hot water inlet pipe and a domestic hot water outlet pipe, one side of the heat preservation water tank is provided with a solar heat pump, and a hot water inlet and a hot water outlet of the solar heat pump are both connected with the heat preservation water tank through hot water pipelines; the utility model discloses heat-conducting liquid import temperature sensor and heat-conducting liquid export temperature sensor detect the import temperature and the exit temperature of heat-conducting liquid respectively, according to the frequency of the two difference in temperature control frequency conversion heat-conducting liquid circulating pump for the difference in temperature that heat-conducting liquid was imported and exported remains throughout at a reasonable scope, can improve the efficiency of solar heat pump, practices thrift the charges of electricity, practices thrift the running cost.
Description
Technical Field
The utility model belongs to the technical field of the heat pump, concretely relates to solar thermal pump control system suitable for low temperature environment.
Background
With the progress of science and technology, the high-speed development of economy and the continuous improvement of living standards of people, people have more and more requirements on domestic hot water, and solar energy is an inexhaustible, safe and pollution-free renewable resource, so that the energy consumption of buildings can be reduced, and the energy and environmental crisis can be relieved by utilizing the solar energy to provide the domestic hot water.
However, solar energy is greatly influenced by seasons and weather, and the heat flow density is low, so that the solar energy is limited in many applications, most of solar water heating systems cannot normally operate in rainy days, at night and when the sun intensity is not high, and the defects bring a trigger for the development of another energy-saving heat pump technology.
The heat pump technology utilizes a small amount of electric energy, absorbs heat energy which is several times of the electric energy from a low-temperature heat source and transfers the heat energy to a high-temperature heat source, so that a solar energy-air source heat pump hot water system is combined to supply domestic hot water, the solar energy heating is mainly used, the air source heat pump is used as an auxiliary, and the problem of continuity of solar energy heat supply can be well solved.
The traditional solar heat pump hot water system does not consider the frequency of the variable-frequency heat-conducting liquid circulating pump to be controlled according to the temperature difference of the inlet and the outlet of the heat-conducting liquid of the solar heat pump, so that the temperature difference range of the inlet and the outlet of the heat-conducting liquid is large in change, the efficiency of the solar heat pump is reduced, and the operation cost is improved.
SUMMERY OF THE UTILITY MODEL
To solve the problems set forth in the background art described above. The utility model provides a solar thermal energy pump control system suitable for low temperature environment has the frequency that can import and export the temperature difference control frequency conversion heat conduction liquid circulating pump according to heat conduction liquid, improves the efficiency of solar thermal energy pump, practices thrift the charges of electricity, practices thrift running cost's characteristics.
In order to achieve the above object, the utility model provides a following technical scheme: the solar heat pump control system suitable for the low-temperature environment comprises a heat preservation water tank, wherein a water tank temperature sensor is assembled on the inner wall of the heat preservation water tank, a domestic hot water inlet pipe and a domestic hot water outlet pipe are respectively connected to one side wall of the heat preservation water tank, a solar heat pump is arranged on one side of the heat preservation water tank, a hot water inlet and a hot water outlet of the solar heat pump are respectively connected with the heat preservation water tank through hot water pipelines, a hot water inlet temperature sensor and a hot water circulating pump are respectively assembled between the hot water inlet of the solar heat pump and the heat preservation water tank on each hot water pipeline, a solar heat absorption plate is arranged on one side of the solar heat pump, a heat conducting liquid inlet and a heat conducting liquid outlet of the solar heat pump are respectively connected with a solar heat absorption plate through heat conducting liquid pipelines, a variable-frequency heat conducting liquid circulating pump is respectively assembled on each heat conducting liquid pipeline between the heat conducting liquid inlet of the solar heat pump and the solar heat absorption plate, The solar heat pump comprises a flow meter and a heat-conducting liquid inlet temperature sensor, wherein the heat-conducting liquid outlet temperature sensor is assembled on a heat-conducting liquid pipeline between a heat-conducting liquid outlet of the solar heat pump and a solar heat absorbing plate, an illumination intensity sensor is assembled on the solar heat absorbing plate, a centralized controller is arranged on one side of the solar heat absorbing plate, and the water tank temperature sensor, a hot water circulating pump, a hot water inlet temperature sensor, a hot water outlet temperature sensor, a heat-conducting liquid inlet temperature sensor, a heat-conducting liquid outlet temperature sensor, the flow meter, a frequency conversion heat-conducting liquid circulating pump and the illumination intensity sensor are all electrically connected with the centralized controller.
Preferably, a pressure sensor and an automatic pressure relief valve are respectively assembled on the heat-conducting liquid pipeline between the heat-conducting liquid outlet of the solar heat pump and the solar heat absorbing plate, and the pressure sensor and the automatic pressure relief valve are electrically connected with the centralized controller.
Preferably, the solar heat absorption plate is provided with an exhaust valve.
Preferably, holding water box's inside is equipped with supplementary electrical heating rod, supplementary electrical heating rod and centralized control ware electric connection.
Preferably, heat preservation water tank's inner wall from the top down is provided with three water tank level sensor, the life hot water advances to be equipped with automatic water supply valve on the pipe, water tank level sensor and automatic water supply valve and centralized control ware electric connection.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses import and the exit temperature of heat conduction liquid are detected respectively to heat conduction liquid import temperature sensor and heat conduction liquid exit temperature sensor, according to the frequency of the two difference in temperature control frequency conversion heat conduction liquid circulating pump for the difference in temperature that heat conduction liquid was imported and exported remains a reasonable scope throughout, can improve the efficiency of solar heat pump, practices thrift the charges of electricity, practices thrift the running cost.
2. The utility model discloses set up pressure sensor and automatic relief valve, pressure sensor and automatic relief valve and centralized controller electric connection, when pressure sensor detected the pressure in the heat-conducting fluid system and is greater than the setting value, the automatic relief valve of centralized controller control is opened, and the pressure release carries out some protections to the system to safe pressure, prolongs the life-span of equipment, reduces the maintenance cost.
3. The utility model discloses set up supplementary electric heating rod, supplementary electric heating rod and centralized controller electric connection, when the temperature of holding water box is less than the unsatisfied solar heat pump starting condition of settlement temperature and illumination intensity, the centralized controller starts the life hot water of supplementary electric heating rod heating holding water box for user's life hot water is secure, can reduce the number of times of solar heat pump in the interval operation of low efficiency simultaneously, saving expense.
4. The utility model discloses set up water tank level sensor and automatic water supply valve, water tank level sensor and automatic water supply valve and centralized control ware electric connection, when water tank level sensor detected holding water tank's water level was less than minimum, the automatic water supply valve of centralized control ware control was opened, to moisturizing in the holding water tank, when water tank level sensor detected holding water tank's water level reached the maximum water level, the automatic water supply valve of centralized control ware control was closed, need not artificial guard.
Drawings
Fig. 1 is a schematic overall structure diagram of the present invention;
in the figure: 1. a centralized controller; 2. an automatic pressure relief valve; 3. an exhaust valve; 4. an illumination intensity sensor; 5. a solar absorber plate; 6. a variable-frequency heat-conducting liquid circulating pump; 7. a pressure sensor; 8. a flow meter; 9. a heat transfer fluid outlet temperature sensor; 10. a heat transfer fluid inlet temperature sensor; 11. a solar heat pump; 12. a hot water outlet temperature sensor; 13. a hot water inlet temperature sensor; 14. a hot water circulation pump; 15. a water tank level sensor; 16. a water tank temperature sensor; 17. a heat preservation water tank; 18. an auxiliary electrical heating rod; 19. automatic water supply valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, the present invention provides the following technical solutions: the utility model provides a solar thermal pump control system suitable for low temperature environment, including holding water box 17, holding water box 17's inner wall is equipped with water tank temperature sensor 16, holding water box 17's a lateral wall is connected with life hot water inlet pipe and life hot water outlet pipe respectively, holding water box 17's one side is provided with solar thermal pump 11, solar thermal pump 11's hot water inlet and hot water outlet all are connected with holding water box 17 through hot-water line, be equipped with hot water inlet temperature sensor 13 and hot water circulating pump 14 respectively between solar thermal pump 11's hot water inlet and holding water box 17 on the hot-water line, in this embodiment, preferably, hot water inlet temperature sensor 13 is located the hot-water line and is close to one side of solar thermal pump 11, hot water circulating pump 14 is located the hot-water line and is close to holding water box 17's one side, solar heat absorption plate 5 is provided with one side of solar thermal pump 11, solar thermal pump 11's heat conduction liquid inlet and heat conduction liquid outlet all are through heat conduction liquid pipeline and solar heat absorption plate 5 In this embodiment, preferably, the variable-frequency heat-conducting liquid circulating pump 6 is located on one side of the heat-conducting liquid pipeline close to the solar heat absorbing plate 5, the heat-conducting liquid inlet temperature sensor 10 is located on one side of the heat-conducting liquid pipeline close to the solar heat absorbing plate 11, the flow meter 8 is located between the variable-frequency heat-conducting liquid circulating pump 6 and the heat-conducting liquid inlet temperature sensor 10, the heat-conducting liquid outlet of the solar heat pump 11 and the heat-conducting liquid pipeline between the solar heat absorbing plate 5 are equipped with the heat-conducting liquid outlet temperature sensor 9, in this embodiment, preferably, the heat-conducting liquid outlet temperature sensor 9 is located on one side of the heat-conducting liquid pipeline close to the solar heat pump 11, and the solar heat absorbing plate 5 is equipped with the illumination intensity sensor 4, one side of solar energy absorber plate 5 is provided with centralized control ware 1, and water tank temperature sensor 16, hot water circulating pump 14, hot water inlet temperature sensor 13, hot water outlet temperature sensor 12, heat-conducting liquid inlet temperature sensor 10, heat-conducting liquid outlet temperature sensor 9, flowmeter 8, frequency conversion heat-conducting liquid circulating pump 6 and illumination intensity sensor 4 all with centralized control ware 1 electric connection.
In particular, the exhaust valve 3 is assembled on the solar heat absorbing plate 5,
by adopting the technical scheme, the exhaust valve 3 can enable the gas in the solar heat absorbing plate 5 to be communicated with the outside, so that the solar heat absorbing plate 5 is prevented from being influenced by the outside temperature and condensing into water drops on glass, and the heat absorption efficiency of the solar heat absorbing plate 5 is effectively improved.
The working principle of the embodiment is as follows: when the water tank temperature sensor 16 detects that the temperature of the heat preservation water tank 17 is lower than the set temperature and the illumination intensity detected by the illumination intensity sensor 4 meets the starting condition of the solar heat pump 11, the variable-frequency heat-conducting liquid circulating pump 6, the solar heat pump 11 and the hot water circulating pump 14 are sequentially started to circularly heat the domestic hot water in the water tank, and when the water tank temperature sensor 16 detects that the temperature of the heat preservation water tank 17 is higher than or equal to the set temperature, the solar heat pump 11, the variable-frequency heat-conducting liquid circulating pump 6 and the hot water circulating pump 14 are sequentially stopped;
the temperature detected by the heat-conducting liquid inlet temperature sensor 10 and the heat-conducting liquid outlet temperature sensor 9 controls the frequency of the variable-frequency heat-conducting liquid circulating pump 6 by using the temperature difference between the heat-conducting liquid inlet and the heat-conducting liquid outlet, so that the temperature difference between the heat-conducting liquid inlet and the heat-conducting liquid outlet is kept in a reasonable range, the solar heat pump 11 can operate at a higher efficiency, for example, when the weather is good and the light is strong, more energy is absorbed by the solar heat absorbing plate 5, the frequency of the variable-frequency heat-conducting liquid circulating pump 6 can be reduced, the temperature difference between the heat-conducting liquid inlet and the heat-conducting liquid outlet can be kept while the electric energy is saved, the solar heat pump 11 operates at a higher efficiency, when the weather is not good and the light is weak, less heat is absorbed by the sun, the frequency of the variable-frequency heat-conducting liquid circulating pump 6 can be increased, the circulating speed can be accelerated, and the temperature difference between the inlet and the outlet is stabilized in a reasonable interval, ensuring that the solar heat pump 11 operates at a higher efficiency.
Example 2
The present embodiment is different from embodiment 1 in that:
specifically, a pressure sensor 7 and an automatic pressure release valve 2 are respectively assembled on a heat-conducting liquid pipeline between a heat-conducting liquid outlet of the solar heat pump 11 and the solar heat absorbing plate 5, in this embodiment, preferably, the pressure sensor 7 is located on one side of the heat-conducting liquid pipeline close to the heat-conducting liquid outlet temperature sensor 9, the automatic pressure release valve 2 is located on one side of the heat-conducting liquid pipeline close to the solar heat absorbing plate 5, the pressure sensor 7 and the automatic pressure release valve 2 are electrically connected with the centralized controller 1,
through adopting above-mentioned technical scheme, pressure sensor 7 real-time detection heat conduction liquid system internal pressure, automatic relief valve 2 opens automatically when the pressure in the heat conduction liquid system is greater than the setting value, and the relief pressure is to safe pressure, improves the safety in utilization of system.
The working principle of the embodiment is as follows: when the pressure sensor 7 detects that the pressure in the heat conducting liquid system is greater than a set value, the automatic pressure release valve 2 is automatically opened to release the pressure to safe pressure.
Example 3
This example differs from examples 1 and 2 in that:
specifically, an auxiliary electric heating rod 18 is assembled inside the heat preservation water tank 17, the auxiliary electric heating rod 18 is electrically connected with the centralized controller 1,
by adopting the technical scheme, when the temperature of the heat preservation water tank 17 is lower than the set temperature and the illumination intensity does not meet the starting condition of the solar heat pump 11, the auxiliary electric heating rod 18 can be started to heat the domestic hot water in the heat preservation water tank 17, so that the domestic hot water of a user is guaranteed, the number of times of running of the solar heat pump 11 in a low-efficiency interval is reduced, and the cost is saved.
The working principle of the embodiment is as follows: when the water tank temperature sensor 16 detects that the temperature of the heat preservation water tank 17 is lower than the set temperature and the illumination intensity sensor 4 detects that the illumination intensity does not meet the starting condition of the solar heat pump 11, the auxiliary electric heating rod 18 is started to heat the domestic hot water in the heat preservation water tank 17.
Example 4
This example differs from examples 1, 2 and 3 in that:
specifically, three water tank level sensors 15 are arranged on the inner wall of the heat preservation water tank 17 from top to bottom, an automatic water replenishing valve 19 is assembled on the domestic hot water inlet pipe, the water tank level sensors 15 and the automatic water replenishing valve 19 are electrically connected with the centralized controller 1,
by adopting the technical scheme, the water level sensor 15 detects the water level of the heat-preservation water tank 17 in real time; the automatic water replenishing valve 19 is automatically opened when the water level of the heat preservation water tank 17 is lower than the lowest value, and is automatically closed when the water level of the heat preservation water tank 17 reaches the highest water level, so that the water source in the heat preservation water tank 17 is ensured to be sufficient.
The working principle of the embodiment is as follows: when the water level sensor 15 in the heat-preservation water tank 17 detects that the water level of the heat-preservation water tank 17 is lower than the lowest value, the automatic water replenishing valve 19 is opened to replenish water into the heat-preservation water tank 17, and when the water level sensor 15 detects that the water level of the heat-preservation water tank 17 reaches the highest water level, the automatic water replenishing valve 19 is closed.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a solar thermal pump control system suitable for low temperature environment, includes holding water box (17), its characterized in that: the solar heat pump water heater is characterized in that a water tank temperature sensor (16) is assembled on the inner wall of the heat preservation water tank (17), a domestic hot water inlet pipe and a domestic hot water outlet pipe are connected to one side wall of the heat preservation water tank (17) respectively, a solar heat pump (11) is arranged on one side of the heat preservation water tank (17), a hot water inlet and a hot water outlet of the solar heat pump (11) are connected with the heat preservation water tank (17) through hot water pipelines, a hot water inlet temperature sensor (13) and a hot water circulating pump (14) are assembled on each hot water pipeline, a solar heat absorption plate (5) is arranged on one side of the solar heat pump (11), a heat conducting liquid inlet and a heat conducting liquid outlet of the solar heat pump (11) are connected with the solar heat absorption plate (5) through heat conducting liquid pipelines, a heat conducting liquid inlet of the solar heat pump (11) is assembled with the solar heat absorption plate (5) through variable frequency heat conducting liquid circulating pipelines The solar heat collector comprises a ring pump (6), a flowmeter (8) and a heat-conducting liquid inlet temperature sensor (10), wherein a heat-conducting liquid outlet of a solar heat pump (11) is arranged between a heat-conducting liquid pipeline and a solar heat absorbing plate (5), a heat-conducting liquid outlet temperature sensor (9) is assembled on the heat-conducting liquid pipeline, an illumination intensity sensor (4) is assembled on the solar heat absorbing plate (5), a centralized controller (1) is arranged on one side of the solar heat absorbing plate (5), and a water tank temperature sensor (16), a hot water circulating pump (14), a hot water inlet temperature sensor (13), a hot water outlet temperature sensor (12), a heat-conducting liquid inlet temperature sensor (10), a heat-conducting liquid outlet temperature sensor (9), a flowmeter (8), a variable-frequency heat-conducting liquid circulating pump (6) and an illumination intensity sensor (4) are all electrically connected with the centralized controller (1).
2. A solar thermal pump control system adapted for use in a cryogenic environment according to claim 1, wherein: between the heat-conducting liquid outlet of the solar heat pump (11) and the solar heat absorbing plate (5), a pressure sensor (7) and an automatic pressure release valve (2) are respectively assembled on the heat-conducting liquid pipeline, and the pressure sensor (7) and the automatic pressure release valve (2) are electrically connected with the centralized controller (1).
3. A solar thermal pump control system adapted for use in a cryogenic environment according to claim 1, wherein: the solar heat absorption plate (5) is provided with an exhaust valve (3).
4. A solar thermal pump control system adapted for use in a cryogenic environment according to claim 1, wherein: the inside of holding water box (17) is equipped with supplementary electric heating rod (18), supplementary electric heating rod (18) and centralized control ware (1) electric connection.
5. A solar thermal pump control system adapted for use in a cryogenic environment according to claim 1, wherein: the utility model discloses a domestic hot water heating system, including holding water tank (17), the inner wall from the top down of holding water tank (17) is provided with three water tank level sensor (15), domestic hot water advances to be equipped with on the pipe and mends water valve (19) automatically, water tank level sensor (15) and automatic water valve (19) and centralized control ware (1) electric connection.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121113861.2U CN214746485U (en) | 2021-05-21 | 2021-05-21 | Solar heat pump control system suitable for low temperature environment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121113861.2U CN214746485U (en) | 2021-05-21 | 2021-05-21 | Solar heat pump control system suitable for low temperature environment |
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| CN214746485U true CN214746485U (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294870A (en) * | 2021-12-21 | 2022-04-08 | 珠海格力电器股份有限公司 | Control method, device and equipment of heat pump air conditioning system and storage medium |
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2021
- 2021-05-21 CN CN202121113861.2U patent/CN214746485U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114294870A (en) * | 2021-12-21 | 2022-04-08 | 珠海格力电器股份有限公司 | Control method, device and equipment of heat pump air conditioning system and storage medium |
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