Waste heat utilization device of ground source heat pump

Abstract

The utility model discloses a ground source heat pump waste heat utilization device which comprises a ground source heat pump main machine and a waste heat collection device, the waste heat collection device is composed of supporting legs, a box body, a collection cover, a heat conduction pipe, a spiral blade, a spiral water pipe, an air outlet pipe and an exhaust pipe, and the supporting legs are arranged at the bottom end of the box body. Heat generated by operation of the ground source heat pump main machine is collected through the collecting cover, guided into the box body through the heat conduction pipe, moved in the spiral space of the spiral blade and subjected to cold and heat exchange with cold water in the spiral water pipe, and the ground source heat pump main machine is heated and cooled through the heat conduction pipe. The water outlet end of the spiral water pipe can be connected to a daily water using end, and heat discharged by the ground source heat pump main machine is discharged from the spiral space of the spiral blade after being cooled and is discharged through the air outlet pipe and the exhaust pipe, so that the heat dissipation effect of the ground source heat pump main body is achieved. And meanwhile, secondary utilization of discharged heat is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of waste heat utilization devices, and in particular to a ground source heat pump waste heat utilization device. Background Technology

[0002] Geothermal heat pump systems, also known as ground source heat pumps, use ground energy (soil, groundwater, surface water, low-temperature geothermal water, and tailwater) as the cooling source for summer cooling and the low-temperature heat source for winter heating. They are systems that provide heating, cooling, and domestic hot water. They are used to replace the traditional mode of using chillers and boilers for air conditioning, heating, and hot water supply. They are an effective way to improve the urban atmospheric environment and save energy, and also a new development direction for the utilization of ground source energy in China.

[0003] During operation, the internal electrical equipment of a ground source heat pump unit can easily generate a lot of heat. Usually, a cooling fan is used to dissipate the heat from the ground source heat pump unit to the outside as waste heat, which is quite wasteful of energy. Therefore, a ground source heat pump waste heat utilization device is needed to meet the demand. Utility Model Content

[0004] The purpose of this invention is to provide a ground source heat pump waste heat utilization device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a ground source heat pump waste heat utilization device, comprising a ground source heat pump main unit and a waste heat collection device. The waste heat collection device consists of a support leg, a housing, a collection hood, a heat-conducting pipe, spiral blades, a spiral water pipe, an air outlet pipe, and an exhaust pipe. The support leg is located at the bottom of the housing. One end of the collection hood is connected to the heat dissipation port of the ground source heat pump main unit, and the other end is connected to the heat-conducting pipe. The heat-conducting pipe is connected to the top of the housing. The air outlet pipe is connected to the top of the housing. The inner side of the spiral blades is connected to the outer wall of the air outlet pipe, and the outer side is connected to the inner wall of the housing. The heat-conducting pipe is connected to the spiral space of the spiral blades. The spiral water pipe is arranged in the spiral space of the spiral blades, with one upper end extending outward from the housing as an inlet and the lower end extending outward from the housing as an outlet. The exhaust pipe is connected to the top of the housing and is connected to the air outlet pipe.

[0006] Preferably, a water outlet pipe is connected to the bottom end of the box, and a valve is installed on the water outlet pipe.

[0007] Preferably, the bottom of the box is funnel-shaped, with the smaller opening at the bottom, which is connected to the water outlet pipe.

[0008] Preferably, the collection cover is funnel-shaped, with the larger opening end positioned at the heat dissipation port of the ground source heat pump unit, and the smaller opening end connected to the heat conduction pipe.

[0009] Preferably, the collection cover is connected to the heat dissipation port of the ground source heat pump unit by a number of screws.

[0010] Preferably, the outer wall of the enclosure is provided with a heat insulation layer.

[0011] Preferably, the exhaust pipe is a right-angle bend.

[0012] The beneficial effects of this utility model are:

[0013] In this invention, the heat generated by the operation of the ground source heat pump unit is collected by a collection hood and guided into the housing through a heat pipe. The heat moves within the spiral space of the spiral blades and exchanges heat with the cold water in the spiral water pipe, thereby heating the cold water in the spiral water pipe. The outlet end of the spiral water pipe can be connected to the daily water supply end. After being cooled, the heat discharged by the ground source heat pump unit is discharged from the spiral space of the spiral blades and discharged through the air outlet pipe and exhaust pipe, realizing the heat dissipation effect of the ground source heat pump unit and achieving the secondary utilization of the discharged heat.

[0014] In this invention, heat flows within the spiral space of the spiral blades, alternating with the cold water in the spiral water pipe. During this process, condensate is generated on the outer wall of the spiral water pipe. Under the airflow effect generated by the heat flow, the condensate flows out from the spiral space and falls to the bottom of the housing for collection. Through the setting of the outlet pipe and valve, the condensate can be utilized, further improving the utilization rate of waste heat from the ground source heat pump unit. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a ground source heat pump waste heat utilization device proposed in this utility model;

[0016] Figure 2 This is a front cross-sectional view of a ground source heat pump waste heat utilization device proposed in this utility model.

[0017] Figure 3 This utility model proposes a waste heat utilization device for a ground source heat pump. Figure 2 Enlarged structural diagram at point A in the middle;

[0018] Figure 4 This is a side view cross-sectional diagram of the spiral water pipe inlet and outlet of a ground source heat pump waste heat utilization device proposed in this utility model.

[0019] In the diagram: 1. Ground source heat pump unit; 2. Waste heat collection device; 3. Support leg; 4. Housing; 5. Collection cover; 6. Heat conduction pipe; 7. Spiral blade; 8. Spiral water pipe; 9. Gas outlet pipe; 10. Exhaust pipe; 11. Water outlet pipe; 12. Valve; 13. Screw; 14. Insulation layer. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4 A ground source heat pump waste heat utilization device includes a ground source heat pump main unit 1 and a waste heat collection device 2. The waste heat collection device 2 consists of a support leg 3, a housing 4, a collection cover 5, a heat-conducting pipe 6, a spiral blade 7, a spiral water pipe 8, an exhaust pipe 9, and an exhaust pipe 10. The support leg 3 is located at the bottom of the housing 4. One end of the collection cover 5 is connected to the heat dissipation port of the ground source heat pump main unit 1, and the other end is connected to the heat-conducting pipe 6. The heat-conducting pipe 6 is connected to the top of the housing 4. The exhaust pipe 9 is connected to the top of the inside of the housing 4. The inner side of the spiral blade 7 is connected to the outer wall of the exhaust pipe 9, and the outer side is connected to the inner wall of the housing 4. The heat-conducting pipe 6 is connected to the spiral space of the spiral blade 7. The spiral water pipe 8 is arranged in the spiral space of the spiral blade 7, with one upper end extending outward from the housing 4 as a water inlet and the other lower end extending outward from the housing 4 as a water outlet. The exhaust pipe 10 is connected to the top of the housing 4 and is connected to the exhaust pipe 9.

[0022] The heat generated by the operation of the ground source heat pump unit 1 is collected by the collection hood 5 and guided to the housing 4 through the heat pipe 6. The heat moves in the spiral space of the spiral blade 7 and exchanges heat with the cold water in the spiral water pipe 8, thereby heating the cold water in the spiral water pipe 8. The outlet end of the spiral water pipe 8 can be connected to the daily water supply end. After being cooled, the heat discharged by the ground source heat pump unit 1 is discharged from the spiral space of the spiral blade 7 and discharged through the air outlet pipe 9 and the exhaust pipe 10, realizing the heat dissipation effect of the ground source heat pump unit 1 and realizing the secondary utilization of the discharged heat.

[0023] Specifically, in this embodiment, a water outlet pipe 11 is connected to the bottom of the housing 4, and a valve 12 is installed on the water outlet pipe 11. During the process of heat flowing in the spiral space of the spiral blades 7 and alternating with the cold water in the spiral water pipe 8, condensate is generated on the outer wall of the spiral water pipe 8. Under the airflow effect generated by the heat flow, the condensate flows out from the spiral space and falls into the bottom of the housing 4 for collection. Through the installation of the water outlet pipe 11 and the valve 12, the condensate can be utilized, further improving the utilization rate of waste heat of the ground source heat pump host 1.

[0024] Specifically, in this embodiment, the bottom of the box 4 is funnel-shaped, with the smaller opening at the bottom, which is connected to the water outlet pipe 11, so that the condensate can flow out of the water outlet pipe 11 more effectively from the bottom of the box 4.

[0025] Specifically, in this embodiment, the collection cover 5 is funnel-shaped, with the larger opening end positioned at the heat dissipation port of the ground source heat pump host 1, and the smaller opening end connected to the heat conduction pipe 6, which facilitates the effective collection of heat discharged by the ground source heat pump host 1.

[0026] Specifically, in this embodiment, the collection cover 5 is connected to the heat dissipation port of the ground source heat pump host 1 by a number of screws 13, so as to realize the detachable connection between the waste heat collection device 2 and the heat dissipation port of the ground source heat pump host 1.

[0027] Specifically, in this embodiment, an insulation layer 14 is provided on the outer wall of the box 4 to improve the insulation effect of the box 4 and prevent heat loss.

[0028] Specifically, in this embodiment, the exhaust pipe 10 is a right-angle bend, which has a certain rainproof effect and prevents rainwater from flowing back into the housing 4.

[0029] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A ground source heat pump waste heat utilization device, comprising a ground source heat pump main unit (1) and a waste heat collection device (2), characterized in that: The waste heat collection device (2) consists of a support leg (3), a housing (4), a collection cover (5), a heat-conducting pipe (6), a spiral blade (7), a spiral water pipe (8), an exhaust pipe (9), and an exhaust pipe (10). The support leg (3) is located at the bottom of the housing (4). One end of the collection cover (5) is connected to the heat dissipation port of the ground source heat pump host (1), and the other end is connected to the heat-conducting pipe (6). The heat-conducting pipe (6) is connected to the top of the housing (4), and the exhaust pipe (9) is connected inside the housing (4). At the top, the inner side of the spiral blade (7) is connected to the outer wall of the air outlet pipe (9), and the outer side is connected to the inner wall of the box body (4). The heat conduction pipe (6) is connected to the spiral space of the spiral blade (7). The spiral water pipe (8) is arranged in the spiral space of the spiral blade (7). One end of the upper part extends outward from the box body (4) as a water inlet, and the other end of the lower part extends outward from the box body (4) as a water outlet. The exhaust pipe (10) is connected to the top of the box body (4), and the exhaust pipe (10) is connected to the air outlet pipe (9).

2. The waste heat utilization device of a ground source heat pump according to claim 1, characterized in that: A water outlet pipe (11) is connected to the bottom end of the box (4), and a valve (12) is installed on the water outlet pipe (11).

3. The waste heat utilization device of a ground source heat pump according to claim 1, characterized in that: The bottom of the box (4) is trumpet-shaped, with the smaller opening at the bottom, which is connected to the water outlet pipe (11).

4. The waste heat utilization device of a ground source heat pump according to claim 1, characterized in that: The collection cover (5) is trumpet-shaped, with the larger opening end located at the heat dissipation port of the ground source heat pump host (1), and the smaller opening end connected to the heat conduction pipe (6).

5. The waste heat utilization device of a ground source heat pump according to claim 1, characterized in that: The collection cover (5) is connected to the heat dissipation port of the ground source heat pump host (1) by several screws (13).

6. The waste heat utilization device of a ground source heat pump according to claim 1, characterized in that: The outer wall of the box (4) is provided with a heat insulation layer (14).

7. A ground source heat pump waste heat utilization device according to claim 1, characterized in that: The exhaust pipe (10) is a right-angle bend.

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