Waste heat recovery device for heating of cascade type air source heat pump

Abstract

The utility model discloses a waste heat recovery device for cascade type air source heat pump heating, which comprises a heat preservation shell, two supporting legs are fixedly connected with the bottom of the heat preservation shell, a water outlet pipe is communicated with the bottom of the heat preservation shell, an electric water valve is arranged on the water outlet pipe, a fan is fixedly embedded at an opening on one side of the heat preservation shell, and a water outlet pipe is arranged on the fan. A heat absorption fin is fixedly connected to the inner wall of one side of the heat preservation shell, a plurality of heat conduction pipes are arranged at the bottom of the heat absorption fin in a rectangular array mode, one side of the heat preservation shell is communicated with a water inlet pipe, and a sealing cover is connected to an opening of the water inlet pipe in a sealed and inserted mode. The two fans can suck indoor residual heat into the heat preservation shell, the residual heat can make contact with the heat absorption fins, the heat is conducted to clean water in the heat preservation shell through the heat conduction pipe for heat storage, and the heat preservation shell is used for conducting heat preservation on the clean water so that the heat can not be lost easily. After the electric water valve is started, clean water storing heat can be discharged through the water outlet pipe.

Description

Technical Field

[0001] The utility model relates to the field of heat pump waste heat recovery, in particular to a cascade air source heat pump heating waste heat recovery device. Background Art

[0002] A heat pump is a highly efficient energy-saving device that makes full use of low-grade thermal energy. Heat can be transferred spontaneously from a high-temperature object to a low-temperature object, but cannot spontaneously proceed in the opposite direction. The working principle of a heat pump is that it is a mechanical device that forces heat to flow from a low-temperature object to a high-temperature object in a reverse cycle. It consumes only a small amount of reverse cycle net work to obtain a large amount of heating capacity, and can effectively utilize low-grade thermal energy that is difficult to use to achieve energy-saving purposes.

[0003] The utility model with the authorization announcement number: CN208536445U discloses a cascade air source heat pump waste heat recovery device, including a base and a box; a partition is fixedly installed inside the box, and the partition divides the inside of the box into a heat exchange chamber and a condensation chamber from left to right in sequence; a bent pipe is fixedly installed inside the heat exchange chamber, and a sleeve is also sleeved on the outside of the bent pipe, and a vacuum chamber is formed between the sleeve and the bent pipe; a groove is provided at the bottom of the base, and a screw is rotatably installed inside the groove, and two external threads with opposite rotation directions are symmetrically arranged on the left and right sides of the screw, and two screw sleeves are symmetrically threaded on the left and right sides of the screw, and the upper end of the screw sleeve is slidably connected to the inside of the groove. The utility model sleeves a sleeve with a heat preservation structure on the outside of the bent pipe, and forms a vacuum chamber between the sleeve and the bent pipe, thereby insulating the bent pipe and reducing the heat loss of the bent pipe; at the same time, casters and feet that can be converted are provided at the bottom of the base to facilitate the movement and fixation of the device.

[0004] The above utility model patent adopts a larger volume design, which will take up a larger space and is not conducive to the placement of the device. At the same time, the waste heat recovery method adopted by the device is inefficient and not conducive to the recovery of waste heat. Therefore, the technical personnel in this field provide a cascade air source heat pump heating waste heat recovery device to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the utility model is to provide a waste heat recovery device for cascade air source heat pump heating to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat recovery device for cascade air source heat pump heating, comprising a thermal insulation shell, the bottom of which is fixedly connected to two legs, the bottom of which is connected to a water outlet pipe, the water outlet pipe is provided with an electric water valve, a fan is fixedly embedded in an opening on one side of the thermal insulation shell, an inner wall on one side of the thermal insulation shell is fixedly connected to heat absorbing fins, and a plurality of heat conducting pipes are provided in a rectangular array at the bottom of the heat absorbing fins.

[0007] As a further solution of the utility model: one side of the heat-insulating shell is connected with a water inlet pipe, and a sealing cover is sealed and plugged at the opening of the water inlet pipe.

[0008] As a further solution of the utility model: a heat-insulating shell is fixedly connected to the inner wall of the heat-insulating outer shell, and a plurality of heat-conducting pipes are sealed and penetrate the heat-insulating shell.

[0009] As a further solution of the utility model: the heat absorbing fins are located on one side of the fan, and a handle is fixedly connected to the top of the heat-insulating shell.

[0010] As a further solution of the utility model: the water outlet pipe is located between the two supporting legs, the heat-insulating shell is made of aluminum material, and clean water can be placed in the heat-insulating shell.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The thermal insulation shell can be placed indoors. When the heat pump is stopped, two fans can be started. The two fans can absorb the residual heat in the room into the thermal insulation shell. The residual heat entering the thermal insulation shell will contact the heat-absorbing fins and then be absorbed by the heat-absorbing fins. Then the heat-absorbing fins will transfer the heat to multiple heat pipes. Pick up the sealing cover on the water inlet pipe and inject clean water into the water inlet pipe. The clean water in the water inlet pipe will flow into the thermal insulation shell for storage. Then multiple heat pipes can be immersed in the clean water in the thermal insulation shell, so the heat of the heat pipes will be transferred to the clean water and stored in the thermal insulation shell. The thermal insulation shell is provided in the thermal insulation shell to better allow the clean water to preserve the heat transferred from the heat pipe. When the electric water valve is started, the clean water after storing the heat can flow in the water outlet pipe, and the water outlet pipe can be connected to other heat storage devices to transport the clean water after storing the heat.

[0013] The utility model is easy to use. Two fans can absorb residual heat in the room into the thermal insulation shell. The residual heat will contact the heat absorbing fins and transfer the heat to the clean water in the thermal insulation shell through the heat conduction pipe for heat storage. The thermal insulation shell is used to keep the clean water warm so that the heat is not easily lost. After the electric water valve is started, the clean water with stored heat can be released through the water outlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 It is a three-dimensional explosion schematic diagram of the utility model;

[0016] Figure 3 It is a left sectional schematic diagram of the utility model.

[0017] In the figure: 1. Insulation shell; 2. Support legs; 3. Water outlet pipe; 4. Electric water valve; 5. Fan; 6. Heat absorbing fins; 7. Heat conducting pipe; 8. Insulation shell; 9. Water inlet pipe; 10. Sealing cover. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0019] See also Figures 1 to 3 In an embodiment of the utility model, a waste heat recovery device for cascade air source heat pump heating includes a thermal insulation shell 1, two legs 2 are fixedly connected to the bottom of the thermal insulation shell 1, a water outlet pipe 3 is connected to the bottom of the thermal insulation shell 1, an electric water valve 4 is arranged on the water outlet pipe 3, a fan 5 is fixedly embedded in an opening on one side of the thermal insulation shell 1, a heat absorbing fin 6 is fixedly connected to the inner wall on one side of the thermal insulation shell 1, and a plurality of heat conducting pipes 7 are arranged in a rectangular array at the bottom of the heat absorbing fin 6.

[0020] In this embodiment, a water inlet pipe 9 is connected to one side of the thermal insulation shell 1, and a sealing cover 10 is sealed and inserted at the opening of the water inlet pipe 9. The thermal insulation shell 1 can be placed indoors. When the heat pump is stopped, the two fans 5 can be started. The two fans 5 can absorb the residual heat in the room into the thermal insulation shell 1. The residual heat entering the thermal insulation shell 1 will contact the heat absorption fins 6, and then the heat absorption fins 6 will absorb the heat. Then the heat absorption fins 6 will transfer the heat to multiple heat pipes 7. The sealing cover 10 on the water inlet pipe 9 can be picked up to inject clean water into the water inlet pipe 9. The clean water in the water inlet pipe 9 will flow into the thermal insulation shell 1 for storage, and then the multiple heat pipes 7 can be immersed in the clean water in the thermal insulation shell 1, so the heat of the heat pipes 7 will be transferred to the clean water for heat storage in the thermal insulation shell 1.

[0021] In this embodiment, an insulation shell 8 is fixedly connected to the inner wall of the insulation outer shell 1, and multiple heat pipes 7 are sealed and penetrate the insulation shell 8. The insulation shell 8 is arranged in the insulation outer shell 1 to better allow clean water to preserve the heat conducted from the heat pipes 7.

[0022] In this embodiment, the heat absorbing fin 6 is located on one side of the fan 5, and a handle is fixedly connected to the top of the heat-insulating shell 1.

[0023] In this embodiment, the water outlet pipe 3 is located between the two legs 2, and the thermal insulation shell 1 is made of aluminum material. Clean water can be placed in the thermal insulation shell 1. When the electric water valve 4 is started, the clean water after storing heat can flow in the water outlet pipe 3. The water outlet pipe 3 can be connected to other heat storage devices to transport the clean water after storing heat.

[0024] The working principle of the utility model is as follows: the heat-insulating shell 1 can be placed indoors. When the heat pump is stopped, the two fans 5 can be started. The two fans 5 can absorb the residual heat in the room into the heat-insulating shell 1. The residual heat entering the heat-insulating shell 1 will contact with the heat-absorbing fins 6, and then the heat will be absorbed by the heat-absorbing fins 6. Then the heat-absorbing fins 6 will conduct the heat to multiple heat-conducting pipes 7. The sealing cover 10 on the water inlet pipe 9 can be picked up to inject clean water into the water inlet pipe 9. The clean water in the water inlet pipe 9 will flow into the heat-insulating shell 1 for storage, and then multiple heat-conducting pipes 7 can be immersed in the clean water in the heat-insulating shell 1, so the heat of the heat-conducting pipes 7 will be conducted to the clean water for heat storage in the heat-insulating shell 1. The heat-insulating shell 8 is arranged in the heat-insulating shell 1 to better allow the clean water to preserve the heat conducted from the heat-conducting pipes 7. When the electric water valve 4 is started, the clean water after storing heat can be circulated in the water outlet pipe 3, and the water outlet pipe 3 can be connected with other heat storage devices to transport the clean water after storing heat.

[0025] However, as is well known to those skilled in the art, the working principles and wiring methods of the electric water valve 4 and the fan 5 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any optional selections according to their needs or convenience.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste heat recovery device for cascade air source heat pump heating, comprising a heat-insulating housing (1), characterized in that: The bottom of the heat-insulating shell (1) is fixedly connected to two legs (2); the bottom of the heat-insulating shell (1) is connected to a water outlet pipe (3); an electric water valve (4) is provided on the water outlet pipe (3); a fan (5) is fixedly embedded in an opening on one side of the heat-insulating shell (1); a heat-absorbing fin (6) is fixedly connected to the inner wall of one side of the heat-insulating shell (1); and a plurality of heat-conducting pipes (7) are provided in a rectangular array at the bottom of the heat-absorbing fin (6).

2. A cascade air source heat pump heating waste heat recovery device according to claim 1, characterized in that: One side of the heat-insulating outer shell (1) is connected to a water inlet pipe (9), and a sealing cover (10) is sealed and plugged into the opening of the water inlet pipe (9).

3. The waste heat recovery device for cascade air source heat pump heating according to claim 1, characterized in that: A heat-insulating shell (8) is fixedly connected to the inner wall of the heat-insulating outer shell (1), and a plurality of heat-conducting pipes (7) are sealed and penetrate the heat-insulating shell (8).

4. The waste heat recovery device for cascade air source heat pump heating according to claim 1, characterized in that: The heat absorbing fin (6) is located on one side of the fan (5), and a handle is fixedly connected to the top of the heat-insulating outer shell (1).

5. The cascade air source heat pump heating waste heat recovery device according to claim 1, characterized in that: The water outlet pipe (3) is located between the two supporting legs (2); the heat-insulating outer shell (1) is made of aluminum material; and clean water can be placed in the heat-insulating outer shell (1).

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