CN221463932U - Groundwater refrigerating and heating device - Google Patents

Abstract

The utility model discloses an underground water refrigerating and heating device, which comprises a water source extraction system and a water source heat pump unit, wherein the water source extraction system comprises a water pump, a heat extraction pipeline, a first heat extraction well, a second heat extraction well and a third heat extraction well, and the water pump and the water source heat pump unit are communicated with the first heat extraction well, the second heat extraction well and the third heat extraction well through the heat extraction pipeline, so that the first heat extraction well, the second heat extraction well and the third heat extraction well are alternately used as a water extraction well and a recharging well. Through setting up first heat extraction well, second heat extraction well and third heat extraction well in turn as extraction well and recharging well for when groundwater seepage flow speed is less, groundwater in every heat extraction well can both be supplemented, can not lead to the water level too low, and because every heat extraction well is before being pumped, all have a period of time's intermittent type, can be convenient for with the groundwater heat transfer, guarantee before pumping next time, groundwater temperature can be close with groundwater temperature, thereby improves groundwater refrigeration heat supply's effect.

Description

Groundwater refrigerating and heating device

Technical Field

The utility model relates to the technical field of geothermal heating, in particular to a groundwater refrigerating and heating device.

Background

The water source heat pump unit is one heat pump type integral water-air or water-water air conditioner with water as heat source and capable of refrigerating and heating.

When heating in winter, because the temperature of the underground water is higher than the ambient temperature, the underground water is used as a heat source, and the liquid refrigerant in the water source heat pump unit absorbs the low-grade heat energy of the underground water in the evaporator and then evaporates into low-temperature low-pressure gaseous refrigerant, and the low-temperature low-pressure gaseous refrigerant is compressed into high-temperature high-pressure gaseous refrigerant by the compressor and then sent into the condenser. The high-temperature high-pressure gaseous refrigerant in the condenser transfers heat to the circulating water of the user side building through heat exchange, releases heat to the building, condenses into liquid state and returns to the evaporator again, and the heat absorption and heat exchange processes are repeated.

When in refrigeration in summer, because the temperature of the underground water is lower than the ambient temperature, water is used as a heat-discharging source, the liquid-state refrigerant in the water source heat pump unit absorbs heat in the user-side building in the evaporator and evaporates into low-temperature low-pressure gaseous refrigerant, the low-temperature low-pressure gaseous refrigerant is compressed into high-temperature high-pressure gaseous refrigerant by the compressor and then is sent into the condenser, and the condenser discharges the heat to the ground through heat exchange with the underground water.

The technology for refrigerating and heating by utilizing the underground water has the advantages of energy saving, environmental protection, high efficiency and the like, and has some problems. The patent number CN202022201046.3 discloses an underground water cooling and heating device, which is characterized in that an underground water cooling well, an underground water heating well, a pump group, an energy storage tank and an air conditioning system are arranged, water in the underground water cooling well is pumped into the air conditioning system to exchange heat in summer and then is discharged into the underground water heating well, and water in the underground water heating well is pumped into the air conditioning system to exchange heat in winter and then is discharged into the underground water cooling well, so that the underground water is utilized for cooling and heating.

In the above patent, water in the underground water-cooling water well is continuously pumped into the underground water-cooling water well in summer, so that the water level in the underground water-cooling water well is easily reduced too fast, and water in the underground water-cooling water well is continuously pumped into the underground water-cooling water well in winter, so that the water level in the underground water-cooling water well is easily reduced too fast, especially under the conditions of small underground water reserves and small underground water seepage speed; the recharging well of the patent is unreasonable in design, so that the recharging effect is poor; the water level in the well continuously drops, so that the service life of the well is reduced, and the continuous development of geothermal heat is not facilitated.

Disclosure of utility model

Accordingly, it is necessary to provide an underground water cooling and heating system in order to solve the above-mentioned problems.

In order to achieve the above purpose, the utility model provides a groundwater refrigeration and heating device, which comprises a water source extraction system and a water source heat pump unit, wherein the water source extraction system comprises a water pump, a heat extraction pipeline, a first heat extraction well, a second heat extraction well and a third heat extraction well, and the water pump and the water source heat pump unit are communicated with the first heat extraction well, the second heat extraction well and the third heat extraction well through the heat extraction pipeline, so that the first heat extraction well, the second heat extraction well and the third heat extraction well are alternately used as a water extraction well and a recharging well.

Preferably, the first heat extraction well, the second heat extraction well and the third heat extraction well are distributed in a triangle shape, and the water pump and the water source heat pump unit are positioned in a triangle area surrounded by the first heat extraction well, the second heat extraction well and the third heat extraction well.

Preferably, the heat-taking pipeline comprises a first underground pipeline, a second underground pipeline, a third underground pipeline, a water inlet four-way pipe, a main water inlet pipe, a main water outlet pipe, a water outlet three-way pipe, a first multipurpose pipe, a second multipurpose pipe, a third multipurpose pipe, a fourth multipurpose pipe, a first underground return pipe, a second underground water supply pipe, a third underground water supply pipe, a first multipurpose three-way pipe, a second multipurpose three-way pipe and a third multipurpose three-way pipe, wherein one end of the first underground pipeline is communicated with the first heat-taking well, the other end of the first underground pipeline is communicated with the water inlet four-way pipe, one end of the main water inlet pipe is communicated with the water inlet four-way pipe, the other end of the main water inlet pipe is communicated with the input end of a water source heat pump unit, a water pump is arranged on the main water inlet pipe, the output end of the water source heat pump unit is communicated with the main water outlet pipe, the other end of the main water outlet pipe is communicated with the water outlet three-way pipe, the other ends of the water outlet three-way pipe are respectively communicated with the first multipurpose pipe and the second multipurpose pipe, the third underground pipeline and the third multipurpose pipe, the third underground pipeline are respectively communicated with the first multipurpose pipe, the third underground pipeline and the third underground pipeline, the second underground pipeline and the third underground pipeline are respectively, the second underground pipeline are communicated with the third water inlet four-way pipe, the other ends of the water pump is communicated with the third water inlet four-way pipe and the water.

Preferably, valves are installed on the first underground pipeline, the first multipurpose pipe, the second multipurpose pipe, the first well return pipe, the second well water supply pipe and the third well water supply pipe.

Preferably, the valve on the first downhole pipe is located between the first well return pipe and the water inlet four-way pipe.

Compared with the prior art, the technical scheme has the following beneficial effects: through setting up first heat extraction well, second heat extraction well and third heat extraction well in turn as extraction well and recharging well for when groundwater seepage flow speed is less, groundwater in every heat extraction well can both be supplemented, can not lead to the water level too low, and because every heat extraction well is before being pumped, all have a period of time's intermittent type, can be convenient for with the groundwater heat transfer, guarantee before pumping next time, groundwater temperature can be close with groundwater temperature, thereby improves groundwater refrigeration heat supply's effect.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic illustration of the first heat extraction well of FIG. 1 with groundwater draining into a second heat extraction well;

FIG. 3 is a schematic illustration of the third heat extraction well of FIG. 1 with groundwater draining into the first heat extraction well;

FIG. 4 is a schematic illustration of the drainage of groundwater from the second heat extraction well into a third heat extraction well of FIG. 1;

In the figure, 1, a water source heat pump unit; 2. a water pump; 3. a first heat extraction well; 4. a second heat extraction well; 5. a third heat extraction well; 6. a first downhole conduit; 7. a second downhole conduit; 8. a third downhole conduit; 9. a water inlet four-way pipe; 10. a main water inlet pipe; 11. a main water outlet pipe; 12. a water outlet three-way pipe; 13. a first utility tube; 14. a second utility tube; 15. a third utility pipe; 16. a fourth utility pipe; 17. a first well return pipe; 18. a second well water supply pipe; 19. a third well water supply pipe; 20. the first multipurpose tee pipe; 21. a second multipurpose tee; 22. a third multipurpose tee; 23. and (3) a valve.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

Referring to fig. 1, an embodiment of the present application provides an underground water cooling and heating device, which includes a water source extraction system and a water source heat pump unit 1, wherein the water source extraction system includes a water pump 2, a heat extraction pipeline, a first heat extraction well 3, a second heat extraction well 4 and a third heat extraction well 5, and the water pump 2 and the water source heat pump unit 1 are communicated with the first heat extraction well 3, the second heat extraction well 4 and the third heat extraction well 5 through the heat extraction pipeline, so that the first heat extraction well 3, the second heat extraction well 4 and the third heat extraction well 5 are alternately used as a water extraction well and a recharging well. The extraction well is the heat extraction well for the groundwater to be pumped away, and the recharging well is the heat extraction well for the groundwater discharged after heat exchange. The water pump 2 conveys the groundwater in the first heat-taking well 3 to the water source heat pump unit 1 through the heat-taking pipeline, after the water source heat pump unit 1 exchanges heat with the groundwater, the groundwater is discharged into the second heat-taking well 4, after a period of time, the groundwater source is switched, the water pump 2 conveys the groundwater in the third heat-taking well 5 to the water source heat pump unit 1 through the heat-taking pipeline, after the water source heat pump unit 1 exchanges heat with the groundwater, the groundwater is discharged into the first heat-taking well 3, the groundwater pumped in the first heat-taking well 3 is replenished, after a period of time, the groundwater source is switched again, the water pump 2 conveys the groundwater in the second heat-taking well 4 to the water source heat pump unit 1 through the heat-taking pipeline, after the heat exchange of the water source heat pump unit 1 and the groundwater, the groundwater is discharged into the third heat-taking well 5, the groundwater pumped in the third heat-taking well 5 is replenished, so circulation is performed, the groundwater is pumped and the groundwater is pumped, when the groundwater seepage speed is smaller, the groundwater in each heat-taking well can be replenished, the groundwater level is not caused, and the groundwater temperature in each heat-taking well can be conveniently raised in the period of time before the groundwater and the groundwater is cooled, the temperature is convenient to heat exchange with the groundwater, and the groundwater is intermittently heated, and the groundwater temperature can be cooled, and the temperature can be conveniently and the ground heat is guaranteed.

In a specific embodiment, the first heat-taking well 3, the second heat-taking well 4 and the third heat-taking well 5 are arranged in a triangular distribution, the water pump 2 and the water source heat pump unit 1 are located in a triangular area surrounded by the first heat-taking well 3, the second heat-taking well 4 and the third heat-taking well 5, so that the total length of the heat-taking pipeline is as small as possible, heat loss is reduced, and cost is reduced.

In a specific embodiment, the heat-collecting pipeline comprises a first underground pipeline 6, a second underground pipeline 7, a third underground pipeline 8, a water inlet four-way pipe 9, a main water inlet pipe 10, a main water outlet pipe 11, a water outlet three-way pipe 12, a first multi-purpose pipe 13, a second multi-purpose pipe 14, a third multi-purpose pipe 15, a fourth multi-purpose pipe 16, a first well water return pipe 17, a second well water supply pipe 18, a third well water supply pipe 19, a first multi-purpose three-way pipe 20, a second multi-purpose three-way pipe 21 and a third multi-purpose three-way pipe 22, wherein one end of the first underground pipeline 6 is communicated with the first heat-collecting well 3, the other end is communicated with the water inlet four-way pipe 9, one end of the main water inlet pipe 10 is communicated with the input end of the water source heat pump unit 1, the water pump 2 is arranged on the main water inlet pipe 10, the output end of the heat pump unit 1 is communicated with the main water outlet pipe 11, the other end of the main water outlet pipe 11 is communicated with the water outlet three-way pipe 12, the other two ends of the water outlet three-way pipe 12 are respectively communicated with a first multi-purpose pipe 13 and a second multi-purpose pipe 14, a first multi-purpose three-way pipe 20 is respectively communicated with the first multi-purpose pipe 13, a second underground pipeline 7 and a third multi-purpose pipe 15, the other end of the second underground pipeline 7 is communicated with the second heat-taking well 4, the other end of the third multi-purpose pipe 15 is communicated with a third multi-purpose three-way pipe 22, the other two ends of the third multi-purpose pipe 22 are respectively communicated with a first well return pipe 17 and a second well water supply pipe 18, the other end of the first well return pipe 17 is communicated with the first underground pipeline 6, the other end of the second well water supply pipe 18 is communicated with the water inlet four-way pipe 9, the second multi-purpose three-way pipe 21 is respectively communicated with the second multi-purpose pipe 14, the third underground pipeline 8 and the fourth multi-purpose pipe 16, the other end of the third underground pipeline 8 is communicated with the third heat-taking well 5, and the other end of the fourth multi-purpose pipe 16 is communicated with the water inlet four-way pipe 9. The first underground pipeline 6, valves 23 are respectively arranged on the first multipurpose pipe 13, the second multipurpose pipe 14, the first well return pipe 17, the second well water supply pipe 18 and the third well water supply pipe 19, and the valves 23 can be electric valves or manual valves. A valve 23 on the first downhole conduit 6 is located between the first well return pipe 17 and the water inlet four-way pipe 9.

As shown in fig. 2, the groundwater in the first heat-taking well 3 is conveyed to the water source heat pump unit 1 for heat exchange and then discharged into the second heat-taking well 4 according to the specific working principle: the valve 23 on the first underground pipeline 6 and the valve 23 on the first multipurpose pipe 13 are opened, the other valves 23 are closed, the water pump 2 works, underground water in the first heat-taking well 3 enters the water source heat pump unit 1 through the first underground pipeline 6, the water inlet four-way pipe 9 and the main water inlet pipe 10, and after the underground water exchanges heat, the underground water is discharged into the second heat-taking well 4 through the main water outlet pipe 11, the water outlet three-way pipe 12, the first multipurpose pipe 13, the first multipurpose three-way pipe 20 and the second underground pipeline 7;

As shown in fig. 3, the groundwater in the third heat-taking well 5 is conveyed to the water source heat pump unit 1 for heat exchange and then discharged into the first heat-taking well 3 according to the specific working principle: the valve 23 on the first multipurpose pipe 13, the valve 23 on the third well water supply pipe 19 and the valve 23 on the first well return pipe 17 are opened, the other valves 23 are closed, the water pump 2 works, and the underground water in the third heat-taking well 5 enters the water source heat pump unit 1 through the third underground pipeline 8, the second multipurpose three-way pipe 21, the fourth multipurpose pipe 16, the water inlet four-way pipe 9 and the main water inlet pipe 10, and after the underground water exchanges heat, the underground water is discharged into the first heat-taking well 3 through the main water outlet pipe 11, the water outlet three-way pipe 12, the first multipurpose pipe 13, the first multipurpose three-way pipe 20, the third multipurpose pipe 15, the third multipurpose three-way pipe 22, the first well return pipe 17 and the first underground pipeline 6;

As shown in fig. 4, the groundwater in the second heat-extraction well 4 is conveyed to the water source heat pump unit 1 for heat exchange and then discharged into the third heat-extraction well 5 according to the specific working principle: the valve 23 on the second multipurpose pipe 14 and the valve 23 on the second well water supply pipe 18 are opened, the other valves 23 are closed, the water pump 2 works, and the underground water in the second heat-taking well 4 enters the water source heat pump unit 1 through the second underground pipeline 7, the first multipurpose three-way pipe 20, the third multipurpose pipe 15, the third multipurpose three-way pipe 22, the second well water supply pipe 18, the water inlet four-way pipe 9 and the main water inlet pipe 10, and is discharged into the third heat-taking well 5 through the main water outlet pipe 11, the water outlet three-way pipe 12, the second multipurpose pipe 14, the second multipurpose three-way pipe 21 and the third underground pipeline 8 after the underground water exchanges heat.

The dotted line portions in fig. 2, 3 and 4 represent portions where groundwater does not pass into the heat-taking pipe.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Claims (5)

1. The utility model provides an groundwater refrigeration heating system, includes water source extraction system and water source heat pump unit (1), its characterized in that, water source extraction system includes water pump (2), gets hot pipeline, first heat extraction well (3), second heat extraction well (4) and third heat extraction well (5), and water pump (2) and water source heat pump unit (1) are through getting hot pipeline and first heat extraction well (3), second heat extraction well (4) and third heat extraction well (5) intercommunication for first heat extraction well (3), second heat extraction well (4) and third heat extraction well (5) are as extraction well and recharging well in turn.

2. The underground water cooling and heating device according to claim 1, wherein the first heat extraction well (3), the second heat extraction well (4) and the third heat extraction well (5) are distributed in a triangle shape, and the water pump (2) and the water source heat pump unit (1) are located in a triangle area surrounded by the first heat extraction well (3), the second heat extraction well (4) and the third heat extraction well (5).

3. The underground water cooling and heating device according to claim 1, wherein the heat-collecting pipeline comprises a first underground pipeline (6), a second underground pipeline (7), a third underground pipeline (8), a water inlet four-way pipe (9), a main water inlet pipe (10), a main water outlet pipe (11), a water outlet four-way pipe (12), a first multi-purpose pipe (13), a second multi-purpose pipe (14), a third multi-purpose pipe (15), a fourth multi-purpose pipe (16), a first well water return pipe (17), a second well water supply pipe (18), a third well water supply pipe (19), a first multi-purpose three-way pipe (20), a second multi-purpose three-way pipe (21) and a third multi-purpose three-way pipe (22), one end of the first underground pipeline (6) is communicated with the first heat-collecting well (3), the other end of the water inlet four-way pipe (9), one end of the main water inlet pipe (10) is communicated with the water inlet four-way pipe (9), the other end of the main water inlet pipe is communicated with the input end of a water source heat pump unit (1), the water pump (2) is arranged on the main water inlet pipe (10), the output end of the water source unit (1) is communicated with the main water outlet pipe (11) and the other end of the water outlet four-way pipe (12) of the main heat pump unit (12) are respectively communicated with the water outlet pipe (12, the first multipurpose three-way pipe (20) is respectively communicated with the first multipurpose pipe (13), the second underground pipeline (7) and the third multipurpose pipe (15), the other end of the second underground pipeline (7) is communicated with the second heat-taking well (4), the other end of the third multipurpose pipe (15) is communicated with the third multipurpose three-way pipe (22), the other two ends of the third multipurpose three-way pipe (22) are respectively communicated with the first underground water return pipe (17) and the second underground water supply pipe (18), the other end of the first underground water return pipe (17) is communicated with the first underground pipeline (6), the other end of the second underground water supply pipe (18) is communicated with the water inlet four-way pipe (9), the second multipurpose three-way pipe (21) is respectively communicated with the second multipurpose pipe (14), the third underground pipeline (8) and the fourth multipurpose pipe (16), the other end of the third underground pipeline (8) is communicated with the third heat-taking well (5), and the other end of the fourth multipurpose pipe (16) is communicated with the water inlet four-way pipe (9).

4. A groundwater heating and cooling device according to claim 3, characterized in that the first downhole pipe (6), the first utility pipe (13), the second utility pipe (14), the first well return pipe (17), the second well water supply pipe (18) and the third well water supply pipe (19) are provided with valves (23).

5. Groundwater heating and cooling device according to claim 4, characterized in that the valve (23) on the first downhole conduit (6) is located between the first well return pipe (17) and the water inlet four-way pipe (9).