CN217442001U - Integral ground source heat pump unit - Google Patents
Integral ground source heat pump unit Download PDFInfo
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- CN217442001U CN217442001U CN202123118156.4U CN202123118156U CN217442001U CN 217442001 U CN217442001 U CN 217442001U CN 202123118156 U CN202123118156 U CN 202123118156U CN 217442001 U CN217442001 U CN 217442001U
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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
Abstract
The utility model relates to an integral ground source heat pump unit, including compressor, first heat exchanger, second heat exchanger, throttling arrangement, third heat exchanger and valve unit, valve unit and the controlled switch-over of throttling arrangement heat to second heat exchanger refrigeration, first heat exchanger, perhaps, the second heat exchanger heats, first heat exchanger refrigeration, perhaps, the third heat exchanger provides heat, the second heat exchanger heats, first heat exchanger refrigeration, perhaps, the third heat exchanger heats, the refrigerated state of second heat exchanger. The user side heat exchange equipment is integrated to the outdoor unit side, and the air conditioner, the floor heating and the domestic hot water are realized through one set of unit, so that the one set of unit meets the user requirements of the whole air conditioner, the floor heating and the hot water house, is highly integrated, and solves the problem of space installation; and in summer, free hot water is prepared by air conditioner refrigeration heat recovery, so that the energy saving property is greatly improved.
Description
Technical Field
The utility model belongs to the technical field of the air temperature control technique and specifically relates to an utilize ground source heat pump to realize air conditioner, warm up, heat pump set of life hot water function.
Background
The ground source heat pump system is a novel energy application system for refrigerating and heating by utilizing shallow soil heat energy. In winter, the ground source heat pump system firstly passes through the circulating water through the closed pipeline buried in the underground soil, absorbs heat from the soil, and then conveys the heat to the indoor space through the host machine, thereby achieving heating. In summer, the system collects indoor heat, and then discharges the heat to soil through circulating water via the underground buried pipe, thereby achieving refrigeration indoors. The ground source heat pump is a novel air conditioning system which utilizes renewable energy sources, is efficient, energy-saving and pollution-free, and can supply heat and refrigerate. For the areas with abundant water and ground source resources, the water and ground source heat pump is undoubtedly an optimal air conditioning solution.
However, the user side of the air-conditioning product applying the water and ground source resources still adopts a multi-split solution, and the comfort of the product in use is influenced by the problems of air-conditioning heating in winter, air-conditioning hot air drying, indoor air blowing disturbing dust floating, large air supply temperature difference and the like. Meanwhile, the installation of the multi-connected indoor unit is complex, and the problem of noise caused by the flowing of the refrigerant during the operation is inevitable for the fluorine unit. The requirement that the indoor floor heating two-combined-supply unit is used for solving air conditioning and heating is an effective scheme for solving the problems. However, the unit in the prior art mostly adopts a split type structure, namely, the hydraulic module is an independent device, and the ground source unit and the hydraulic module need to be connected on site, so that new requirements are provided for site space and construction. And the hydraulic module needs to be placed in a separate space, and the hydraulic module also occupies the indoor space.
Disclosure of Invention
The utility model provides an integral ground source heat pump unit has solved that module components of a whole that can function independently is the technical problem that needs on-the-spot installation and space occupy that the design exists in prior art ground source unit and the water.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an integral ground source heat pump unit comprises a shell and a heat pump unit, wherein the heat pump unit is positioned in the shell:
a compressor;
the first heat exchanger is provided with a water inlet pipeline and a water outlet pipeline which are connected with a ground source;
the second heat exchanger is provided with a water inlet pipeline and a water outlet pipeline, and the water inlet pipeline is provided with a water pump and a water flow switch;
a throttling device;
the third heat exchanger is provided with a water inlet pipe and a water outlet pipe and is used for providing hot water;
a valve unit;
the valve unit and the throttling device are controlled to be switched to the following states:
the second heat exchanger is in a refrigerating state, and the first heat exchanger is in a heating state;
the second heat exchanger is in a heating state, and the first heat exchanger is in a refrigerating state;
the third heat exchanger provides heat, and the first heat exchanger is in a refrigerating state;
the third heat exchanger provides heat, the second heat exchanger heats, and the first heat exchanger is in a refrigerating state;
the third heat exchanger heats, and the second heat exchanger cools.
The technical scheme of the utility model prior art relatively has following technological effect: the utility model discloses integral ground source heat pump unit is with user side indirect heating equipment part integration to outdoor machine side, with air conditioner, ground heating, life hot water through one set of unit realization, one set of unit has satisfied air conditioner, ground heating, hot water whole room user demand, highly integrated, has solved the problem of space installation; and in summer, free hot water is prepared by air conditioner refrigeration heat recovery, so that the energy saving property is greatly improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the integrated ground source heat pump unit according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In the foregoing description of embodiments, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, the present embodiment provides an integrated ground source heat pump unit, which includes a housing and, located inside the housing:
a compressor 1;
a first heat exchanger 2 having a water inlet pipeline and a water outlet pipeline connected with a ground source;
the second heat exchanger 11 is provided with a water inlet pipeline and a water outlet pipeline, and the water inlet pipeline is provided with a water pump 20 and a water flow switch 21;
a throttling device;
a third heat exchanger 13 having a water inlet pipe and a water outlet pipe, the third heat exchanger 13 being for providing hot water;
a valve unit;
the valve unit and the throttle device are controlled to switch to the following states:
the second heat exchanger 11 is in a refrigerating state and the first heat exchanger 2 is in a heating state;
the second heat exchanger 11 heats and the first heat exchanger 2 cools;
the third heat exchanger 13 provides heat and the first heat exchanger 2 is in a refrigerating state;
the third heat exchanger 13 provides heat, the second heat exchanger 11 heats, and the first heat exchanger 2 is in a refrigerating state;
the third heat exchanger 13 heats and the second heat exchanger 11 cools.
Specifically, the method comprises the following steps:
the valve unit includes:
a check valve 10 connected with the exhaust port of the compressor 1.
And the four-way valve 3 comprises a first interface 31, a second interface 32, a third interface 33 and a fourth interface 34, wherein the first interface 31 is connected with an exhaust port of the compressor 1, and the third interface 33 is connected with a return port of the compressor 1.
And the check valve group 4 comprises a first check valve 41 and a second check valve 42 which are connected in series, and a third check valve 43 and a fourth check valve 44 which are connected in series, wherein the inlet of the first check valve 41 is connected with the inlet of the third check valve 43, and the outlet of the second check valve 42 is connected with the outlet of the fourth check valve 44.
A second solenoid valve 16 and a third solenoid valve 17 in series, the third solenoid valve 17 being connected between a third check valve 43 and a fourth check valve 44.
The throttling device comprises:
the first electronic expansion valve 6 has one end connected to outlets of the second check valve 42 and the fourth check valve 44 and the other end connected to inlets of the first check valve 41 and the third check valve 43.
And a second electronic expansion valve 12 having one end connected to the third heat exchanger 13 and the other end connected between the second solenoid valve 16 and the third solenoid valve 17.
The first heat exchanger 2 is a water source side plate type heat exchanger, is provided with a water inlet pipeline and a water outlet pipeline which are connected with a ground source, and exchanges heat with a water source. One end of the first heat exchanger 2 is connected to the fourth port 34, and the other end is connected between the first check valve 41 and the second check valve 42.
The second heat exchanger 11 is a floor heating air plate type heat exchanger and is provided with a water inlet pipeline and a water outlet pipeline which are connected with a floor heating air plate, a water pump 20, a water flow switch 21 and an expansion pipe 19 are arranged on the water inlet pipeline, one end of the second heat exchanger 11 is connected to the second electromagnetic valve 16, and the other end of the second heat exchanger is connected to the second connector 32.
A third heat exchanger 13, which is a double pipe heat exchanger for producing hot water, having a water inlet pipe and a water outlet pipe, one end of the third heat exchanger 13 being connected to an exhaust port of the compressor 1;
the unit may further include a reservoir 18 for the difference in the demand for cooling and heating refrigerants.
The reservoir 18 has one end connected to the third solenoid valve 17 and the other end connected between the third check valve 43 and the fourth check valve 44.
In order to prevent the refrigerant liquid from entering the compressor to cause liquid impact during defrosting, the unit also comprises a gas-liquid separator 14. One end of the gas-liquid separator 14 is connected to the return port of the compressor 1, and the other end is connected to the third port 33.
Of course, since the unit of this embodiment is an integrated system, the refrigerant charge amount is fixed, and there is no additional refrigerant added to the long refrigerant pipeline, so that during design verification, the gas-liquid separator 14 and the reservoir 18 can be eliminated in combination with actual reliability, thereby reducing the cost and simplifying the structural design of the system.
Preferably, the plant of this embodiment comprises an economizer 9. A first end of the economizer 9 is connected to the first electronic expansion valve 6, a second end of the economizer 9 is connected to inlets of the first check valve 41 and the third check valve 43, a third end of the economizer 9 is connected to the compressor 1, and a fourth end of the economizer 9 is connected to the first end of the economizer 9 through the third electronic expansion valve 8.
The third electronic expansion valve 8 is an electronic expansion valve for air injection enthalpy-increasing compressor air supplement, and the air supplement amount of the compressor is adjusted according to control requirements, so that the unit capacity is improved.
The unit further comprises a refrigerant heat dissipation device 22 and a fourth electronic expansion valve 7 which are connected in series, wherein the refrigerant heat dissipation device 22 and the fourth electronic expansion valve 7 which are connected in series are connected to two ends of the first electronic expansion valve 6.
Further, the unit includes a first solenoid valve 15, one end of the first solenoid valve 15 is connected to the exhaust port of the compressor 1, and the other end is connected between the fourth electronic expansion valve 7 and the refrigerant heat sink 22.
Fourth electronic expansion valve 7 is for answering the refrigerant volume of throttling through the cooling tube under the unit condensation operating mode to play and reduce module driver board temperature effect, prevent that the drive plate temperature from rising too high, and first solenoid valve 15 opens the judgement according to module driver board radiator surface temperature and dew point temperature condition, and the guarantee drive plate does not produce the condensation.
The piping of the unit is provided with a filter 5 as the case may be.
The embodiment can realize five functions of air disk refrigeration, floor heating, independent preparation of domestic hot water, simultaneous preparation of domestic hot water during heating and full heat recovery during refrigeration and heating. The specific introduction is as follows:
(1) air disk refrigeration:
when the four-way valve 3 is controlled to be switched to a state where the first interface 31 is connected with the fourth interface 34, the second interface 32 is connected with the third interface 33, the first electronic expansion valve 6 is controlled to be opened, the second electronic expansion valve 12 is controlled to be closed, and the second electromagnetic valve 16 and the third electromagnetic valve 17 are controlled to be opened, the second heat exchanger 11 performs cooling, and the first heat exchanger 2 performs heating.
High-pressure exhaust gas of a compressor 1 enters a first heat exchanger 2 through a four-way valve 3 for condensation, after being throttled and depressurized by a first electronic expansion valve 6, a condensed refrigerant flows through an economizer 9 and a liquid storage device 18, then enters a second heat exchanger 11 for evaporation and heat absorption, and low-pressure refrigerant gas enters a gas-liquid separator 14 through the four-way valve 3 and finally returns to the gas suction side of the compressor.
(2) Floor heating:
the four-way valve 3 is controlled to be switched to a state that the first interface 31 is connected with the second interface 32, the third interface 33 is connected with the fourth interface 34, the first electronic expansion valve 6 is controlled to be opened, the second electronic expansion valve 12 is controlled to be closed, and the second electromagnetic valve 16 and the third electromagnetic valve 17 are controlled to be opened, so that the second heat exchanger 11 heats and the first heat exchanger 2 cools.
High-pressure exhaust gas of the compressor 1 enters the second heat exchanger 11 through the four-way valve 3 to be condensed, after the condensed refrigerant is throttled and depressurized through the liquid storage device 18 and the first electronic expansion valve 6, the condensed refrigerant flows through the economizer 9 to enter the first heat exchanger 2 to be evaporated and absorb heat, and low-pressure refrigerant gas enters the gas-liquid separator 14 through the four-way valve 3 and finally returns to the gas suction side of the compressor.
(3) Independently preparing domestic hot water:
the first electronic expansion valve 6 is controlled to be opened, the second electronic expansion valve 12 is controlled to be opened, the second electromagnetic valve 16 is controlled to be closed, and when the third electromagnetic valve 17 is controlled to be opened, the third heat exchanger 13 provides heat and the first heat exchanger 2 refrigerates.
The high-pressure exhaust gas of the compressor 1 enters the third heat exchanger 13 for condensation, after passing through the second electronic expansion valve 12 and the liquid storage device 18, the condensed refrigerant is throttled and depressurized by the first electronic expansion valve 6, then flows through the economizer 9 and enters the first heat exchanger 2 for evaporation and heat absorption, and the low-pressure refrigerant gas enters the gas-liquid separator 14 through the four-way valve 3 and finally returns to the gas suction side of the compressor.
(4) Producing domestic hot water while heating
The four-way valve 3 is controlled to be switched to a first interface 31 to be connected with a second interface 32, a third interface 33 is connected with a fourth interface 34, the first electronic expansion valve 6 is controlled to be opened, the second electronic expansion valve 12 is controlled to be opened, the second electromagnetic valve 16 is controlled to be opened, when the third electromagnetic valve 17 is controlled to be opened, the third heat exchanger 13 provides heat, the second heat exchanger 11 heats, and the first heat exchanger 2 refrigerates.
The high-pressure exhaust gas of the compressor 1 enters the third heat exchanger 13 for condensation, meanwhile, the high-pressure exhaust gas enters the second heat exchanger 11 for condensation through the four-way valve 3, after a refrigerant condensed by the two heat exchangers passes through the liquid storage device 18 and is throttled and depressurized by the first electronic expansion valve 6, the refrigerant flows through the economizer 9 and enters the first heat exchanger 2 for evaporation and heat absorption, and the low-pressure refrigerant gas enters the gas-liquid separator 14 through the four-way valve 3 and finally returns to the gas suction side of the compressor. The amount of the heating water and the amount of the heating refrigerant are adjusted by the second electronic expansion valve 12.
(5) Full heat recovery for refrigeration and heating
When the first electronic expansion valve 6 is controlled to be closed, the second electronic expansion valve 12 is controlled to be opened, the second electromagnetic valve 16 is controlled to be opened, and the third electromagnetic valve 17 is controlled to be closed, the third heat exchanger 13 heats, and the second heat exchanger 11 cools.
Preferably, when the first electronic expansion valve 6 is controlled to be closed, the second electronic expansion valve 12 is controlled to be opened, the second solenoid valve 16 is controlled to be opened, the third solenoid valve 17 is controlled to be closed, and the third electronic expansion valve 8 is controlled to be closed, the third heat exchanger 13 heats, and the second heat exchanger 11 cools.
The high-pressure exhaust gas of the compressor 1 enters a third heat exchanger 13 for condensation, enters a second heat exchanger 11 for evaporation after being throttled and depressurized by a second electronic expansion valve 12, and the low-pressure refrigerant gas enters a gas-liquid separator 14 through a four-way valve 3 and finally returns to the suction side of the compressor.
The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The integral ground source heat pump unit is characterized by comprising a shell and a heat pump unit, wherein the heat pump unit is positioned in the shell:
a compressor (1);
a first heat exchanger (2) having a water inlet pipeline and a water outlet pipeline connected with a ground source;
the second heat exchanger (11) is provided with a water inlet pipeline and a water outlet pipeline, and the water inlet pipeline is provided with a water pump (20) and a water flow switch (21);
a throttling device;
a third heat exchanger (13) having an inlet pipe and an outlet pipe, the third heat exchanger (13) being for providing hot water;
a valve unit;
the valve unit and the throttling device are controlled to be switched to the following states:
the second heat exchanger (11) is used for refrigerating, and the first heat exchanger (2) is used for heating;
the second heat exchanger (11) is in a heating state, and the first heat exchanger (2) is in a cooling state;
the third heat exchanger (13) provides heat, and the first heat exchanger (2) is in a refrigerating state;
the third heat exchanger (13) provides heat, the second heat exchanger (11) heats, and the first heat exchanger (2) is in a refrigerating state;
the third heat exchanger (13) heats and the second heat exchanger (11) cools.
2. The integrated ground source heat pump unit of claim 1,
the valve unit includes:
the four-way valve (3) comprises a first interface (31), a second interface (32), a third interface (33) and a fourth interface (34), wherein the first interface (31) is connected with an exhaust port of the compressor (1), and the third interface (33) is connected with a return port of the compressor (1);
the check valve group (4) comprises a first check valve (41) and a second check valve (42) which are connected in series, and a third check valve (43) and a fourth check valve (44) which are connected in series, wherein the inlet of the first check valve (41) is connected with the inlet of the third check valve (43), and the outlet of the second check valve (42) is connected with the outlet of the fourth check valve (44);
a second solenoid valve (16) and a third solenoid valve (17) in series, said third solenoid valve (17) being connected between said third check valve (43) and a fourth check valve (44);
the throttle device includes:
a first electronic expansion valve (6) having one end connected to outlets of the second check valve (42) and the fourth check valve (44) and the other end connected to inlets of the first check valve (41) and the third check valve (43);
a second electronic expansion valve (12) having one end connected to the third heat exchanger (13) and the other end connected between the second solenoid valve (16) and the third solenoid valve (17);
one end of the first heat exchanger (2) is connected to the fourth interface (34), and the other end of the first heat exchanger is connected between the first check valve (41) and the second check valve (42);
one end of the second heat exchanger (11) is connected to the second electromagnetic valve (16), and the other end of the second heat exchanger is connected to a second interface (32) of the four-way valve;
one end of the third heat exchanger (13) is connected to an exhaust port of the compressor (1), and the other end of the third heat exchanger is connected with a second electronic expansion valve (12);
when the four-way valve (3) is controlled to be switched to a first interface (31) to be connected with a fourth interface (34), a second interface (32) to be connected with a third interface (33), a first electronic expansion valve (6) is controlled to be opened, a second electronic expansion valve (12) is controlled to be closed, a second electromagnetic valve (16) and a third electromagnetic valve (17) are controlled to be opened, the second heat exchanger (11) performs refrigeration, and the first heat exchanger (2) performs heating;
when the four-way valve (3) is controlled to be switched to a first interface (31) to be connected with a second interface (32), a third interface (33) is connected with a fourth interface (34), a first electronic expansion valve (6) is controlled to be opened, a second electronic expansion valve (12) is controlled to be closed, a second electromagnetic valve (16) and a third electromagnetic valve (17) are controlled to be opened, the second heat exchanger (11) heats and the first heat exchanger (2) cools;
the first electronic expansion valve (6) is controlled to be opened, the second electronic expansion valve (12) is controlled to be opened, the second electromagnetic valve (16) is controlled to be closed, and when the third electromagnetic valve (17) is controlled to be opened, the third heat exchanger (13) provides heat and the first heat exchanger (2) refrigerates;
the four-way valve (3) is controlled to be switched to a first interface (31) to be connected with a second interface (32), a third interface (33) is connected with a fourth interface (34), the first electronic expansion valve (6) is controlled to be opened, the second electronic expansion valve (12) is controlled to be opened, the second electromagnetic valve (16) is controlled to be opened, when the third electromagnetic valve (17) is controlled to be opened, the third heat exchanger (13) provides heat, the second heat exchanger (11) heats, and the first heat exchanger (2) refrigerates;
when the first electronic expansion valve (6) is controlled to be closed, the second electronic expansion valve (12) is controlled to be opened, the second electromagnetic valve (16) is controlled to be opened, and the third electromagnetic valve (17) is controlled to be closed, the third heat exchanger (13) heats, and the second heat exchanger (11) refrigerates.
3. The integrated ground source heat pump unit of claim 2, characterized in that the unit comprises a liquid reservoir (18).
4. The integrated ground source heat pump unit of claim 3, wherein one end of the liquid reservoir (18) is connected with the third electromagnetic valve (17), and the other end is connected between the third one-way valve (43) and the fourth one-way valve (44).
5. The integrated ground source heat pump unit of claim 2, characterized in that the unit comprises a gas-liquid separator (14).
6. The integrated ground source heat pump unit of claim 5, wherein one end of the gas-liquid separator (14) is connected to the return port of the compressor (1), and the other end is connected to the third interface (33).
7. The integrated ground source heat pump unit of claim 2, characterized in that the unit comprises an economizer (9).
8. The integrated ground source heat pump unit of claim 7, wherein a first end of the economizer (9) is connected with the first electronic expansion valve (6), a second end of the economizer (9) is connected with inlets of the first check valve (41) and the third check valve (43), a third end of the economizer (9) is connected with the compressor (1), and a fourth end of the economizer (9) is connected with the first end of the economizer (9) through a third electronic expansion valve (8).
9. The integrated ground source heat pump unit of claim 8, wherein when the first electronic expansion valve (6) is controlled to be closed, the second electronic expansion valve (12) is controlled to be opened, the second solenoid valve (16) is controlled to be opened, the third solenoid valve (17) is controlled to be closed, and the third electronic expansion valve (8) is controlled to be closed, the third heat exchanger (13) heats, and the second heat exchanger (11) cools.
10. The integrated ground source heat pump unit according to any one of claims 1 to 9, wherein the throttling device comprises a first electronic expansion valve (6), the unit comprises a refrigerant heat sink (22) and a fourth electronic expansion valve (7) connected in series, and the refrigerant heat sink (22) and the fourth electronic expansion valve (7) connected in series are connected to two ends of the first electronic expansion valve (6); the unit comprises a first electromagnetic valve (15), one end of the first electromagnetic valve (15) is connected to an exhaust port of the compressor (1), and the other end of the first electromagnetic valve is connected between the fourth electronic expansion valve (7) and the refrigerant heat dissipation device (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123118156.4U CN217442001U (en) | 2021-12-13 | 2021-12-13 | Integral ground source heat pump unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123118156.4U CN217442001U (en) | 2021-12-13 | 2021-12-13 | Integral ground source heat pump unit |
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| CN217442001U true CN217442001U (en) | 2022-09-16 |
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