Heat preservation structure for energy storage low-temperature variable-frequency heat pump

Abstract

The utility model relates to the technical field of variable-frequency heat pumps, in particular to a heat preservation structure for an energy-storage low-temperature variable-frequency heat pump, which comprises a heat preservation shell sleeved on a pump body, the heat preservation shell comprises a first shell and a second shell, a guide hole is formed between the first shell and the second shell, and a connecting shaft penetrates through the guide hole. A hollow hole for hot water to pass through is formed in the connecting shaft, a top guide sleeve is installed at the top of the first shell, and a top water storage cavity, a water inlet and a water outlet are formed in the top guide sleeve; the heat preservation shell is of a heat preservation layered structure. The pump body can be separated from the outside through the first shell and the second shell which are arranged on the pump body in a sleeving mode, the heat dissipation efficiency of the pump body is reduced, and the heat preservation effect is achieved. Through cooperation of the connecting shaft and the top guide sleeve, hot water is supplied into the connecting shaft, the connecting shaft is matched with the first shell and the second shell correspondingly, heat preservation of the first shell and the second shell is achieved, and therefore the pump body embedded in the first shell and the second shell can achieve the heat preservation effect, and heat loss is reduced.

Description

Technical Field

[0001] This utility model relates to the field of variable frequency heat pump technology, and in particular to a heat preservation structure used in an energy storage low-temperature variable frequency heat pump. Background Technology

[0002] A heat pump unit is a device that operates on the principle of a heat pump. Its main function is to convert and regulate energy. It can absorb heat energy from a low-temperature environment, pressurize it to raise the temperature, and release the high-temperature heat energy into the environment that needs heating. Simultaneously, a heat pump unit can also be used for cooling, absorbing heat from the environment through a reverse process, lowering the temperature, and releasing the heat to the outside.

[0003] Application CN202323378366.6 discloses a heat pump unit insulation device, belonging to the field of heat pump unit insulation technology. It includes a heat pump unit pipe, with a fastening assembly disposed on the outside of the heat pump unit pipe. The fastening assembly connects upper and lower first and second outer shells. The first outer shell is disposed on the outside of the heat pump unit pipe and protects its inner layer. Fastening components are symmetrically disposed on the outside of the first outer shell and are used to connect and fix adjacent first and second outer shells. The fastening components make it quicker and more convenient to assemble the two first and second outer shells, saving working time and improving installation efficiency.

[0004] Existing heat pumps need to operate at a constant temperature, requiring insulation. Most existing insulation structures use a layered structure, which has a relatively poor insulation effect and is prone to changes in ambient temperature, resulting in unstable air temperature. Utility Model Content

[0005] The purpose of this invention is to provide a thermal insulation structure for energy storage low-temperature variable frequency heat pumps, addressing the shortcomings of existing technologies.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows:

[0007] A thermal insulation structure for a low-temperature variable frequency heat pump with energy storage includes a thermal insulation shell fitted onto the pump body. The thermal insulation shell includes a first outer shell and a second outer shell axially spliced ​​together. A guide hole is coaxially formed between the first outer shell and the second outer shell. A connecting shaft passes through the guide hole. The connecting shaft has a hollow hole for hot water to pass through. A top guide sleeve connected to multiple connecting shafts is installed on the top of the first outer shell. The top guide sleeve has a top water storage cavity communicating with the hollow hole, as well as a water inlet and a water outlet communicating with the top water storage cavity. The thermal insulation shell has a thermal insulation layered structure, which includes an inner thermal insulation layer that fits into the pump body.

[0008] Furthermore, the insulation shell also includes a third shell that slides axially between the first shell and the second shell, the inner diameter of the third shell being larger than the outer diameter of the first shell and the second shell.

[0009] Furthermore, the outer diameters of the first and second outer shells are the same.

[0010] Furthermore: the outer surfaces of the first and second outer shells are formed with raised guide rails along the length direction, and the inner wall of the third outer shell is formed with guide grooves that slide with the guide rails.

[0011] Furthermore: the length of the connecting shaft is greater than the total length of the first housing and the second housing, and a heat-conducting copper sleeve is fitted inside the guide hole of the first housing and the second housing, so that the first housing and the second housing can slide with the connecting shaft through the heat-conducting copper sleeve of the guide hole.

[0012] Furthermore, the layered structure also includes an outer insulation layer, and a heat-conducting layer is provided between the outer insulation layer and the inner insulation layer.

[0013] Furthermore, the first outer shell and the second outer shell are respectively radially formed with a through-hole, and a first tensioning connecting rod that can be loosely or loosely connected to the pump body is installed in the first connecting hole.

[0014] Furthermore, the third outer shell is radially formed with a through-hole for mounting a second connecting rod that can be loosely or loosely connected to the first and second outer shells.

[0015] Furthermore: a water pump is installed on the top guide sleeve, and the outlet of the water pump is connected to the inlet of the top guide sleeve.

[0016] The beneficial effects of this utility model are as follows: by sleeved on the first and second outer shells of the pump body, the pump body can be separated from the outside world, reducing the efficiency of heat dissipation of the pump body and achieving a heat preservation effect; through the cooperation of the connecting shaft and the top guide sleeve, hot water is supplied into the connecting shaft, and the connecting shaft cooperates with the first and second outer shells respectively to achieve heat preservation of the first and second outer shells, so that the pump body nested in the first and second outer shells can achieve a heat preservation effect, reduce heat loss, and have a relatively stable temperature. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the connection between the insulation structure and the heat pump.

[0018] Figure 2 This is a cross-sectional schematic diagram showing the connection between the insulation structure and the heat pump.

[0019] The reference numerals in the figures include:

[0020] 1-Insulation shell,

[0021] 10-Heat-conducting copper sleeve, 11-First outer shell, 12-Second outer shell, 13-Guide hole, 14-Connecting shaft,

[0022] 15-Hollow hole, 16-Top guide sleeve, 17-Water inlet, 18-Drain outlet, 19-Water pump

[0023] 191-Water storage chamber,

[0024] 2-Third outer shell,

[0025] 21-Guide rail, 22-Guide groove, 23-First connecting hole, 24-First tensioning connecting rod,

[0026] 25-Second connecting hole, 26-Second elastic connecting rod, 27-Layered structure, 28-Inner insulation layer

[0027] 29 - External insulation layer, 30 - Thermal conductive layer. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings.

[0029] like Figure 1-2 As shown, a thermal insulation structure for a low-temperature variable frequency heat pump includes an insulation shell 1 fitted onto the pump body. The insulation shell 1 includes a first outer shell 11 and a second outer shell 12 axially connected to each other. A hollow hole 15 is coaxially formed between the first outer shell 11 and the second outer shell 12. A connecting shaft 14 passes through a guide hole 13. The connecting shaft 14 has a hollow hole 15 for hot water to pass through. A top guide sleeve 16 connected to multiple connecting shafts 14 is installed on the top of the first outer shell 11. The top guide sleeve 16 has a top water storage cavity 191 communicating with the hollow hole 15 and a top water storage cavity 191 communicating with the top water storage cavity 191. The water chamber 191 connects the inlet 17 and the outlet 18. By fitting the first outer shell 11 and the second outer shell 12 onto the pump body, the pump body can be isolated from the outside, reducing the efficiency of heat dissipation and achieving a heat preservation effect. Through the cooperation of the connecting shaft 14 and the top guide sleeve 16, hot water is supplied into the connecting shaft 14. The connecting shaft 14 cooperates with the first outer shell 11 and the second outer shell 12 respectively to achieve heat preservation for the first outer shell 11 and the second outer shell 12. Thus, the pump body nested in the first outer shell 11 and the second outer shell 12 can achieve a heat preservation effect and reduce heat loss.

[0030] The insulation shell 1 has a layered insulation structure 27, which includes an inner insulation layer 28 that fits into the pump body. The layered structure 27 also includes an outer insulation layer 29. A heat-conducting layer 30 is disposed between the outer insulation layer 29 and the inner insulation layer 28. Both the inner insulation layer 28 and the outer insulation layer 29 are made of insulation cotton, providing good insulation and heat insulation effects. The heat-conducting layer 30 is made of stainless steel, providing good thermal conductivity. The temperature of the connecting shaft 14 can be quickly transferred to the heat-conducting layer 30, maintaining the temperature of the insulation shell 1, preventing heat loss from the heat pump, and ensuring relatively stable temperature.

[0031] The first outer shell 11 and the second outer shell 12 have the same outer diameter. The length of the connecting shaft 14 is greater than the total length of the first outer shell 11 and the second outer shell 12. A heat-conducting copper sleeve 10 is fitted inside the guide hole 13 of the first outer shell and the second outer shell 12. In this embodiment, after the insulation shell 1 is disassembled and installed on a heat pump of other lengths, the first outer shell 11 and the second outer shell 12 can slide and engage with the connecting shaft 14 through the heat-conducting copper sleeve 10 in the guide hole 13, so that the length of the insulation shell 1 can change. This makes it suitable for heat pumps of various lengths and provides insulation for heat pumps of different sizes, further improving its practicality.

[0032] Furthermore, the insulation shell 1 also includes a third shell 2 that slides axially between the first shell 11 and the second shell 12. The inner diameter of the third shell 2 is larger than the outer diameter of the first shell 11 and the second shell 12. When the first shell 11 and the second shell 12 separate to form a longer insulation shell 1, the third shell 2 can move to the gap between the first shell 11 and the second shell 12 to prevent the heat pump's heat from being lost through the gap.

[0033] Furthermore, the outer surfaces of the first outer shell 11 and the second outer shell 12 are formed with raised guide rails 21 along the length direction, and the inner wall of the third outer shell 2 is formed with a guide groove 22 that slides with the guide rails 21. When the third outer shell 2 slides, it slides with the guide rails 21 through the formed guide groove 22, so the third outer shell 2 will not rotate when sliding, thus ensuring the stability of the movement.

[0034] The first outer shell 11 and the second outer shell 12 are respectively radially formed with a through-hole 23. A first tensioning connecting rod 24 that can be loosely or tightly connected with the pump body is installed in the first connecting hole 23. After the first outer shell 11 and the second outer shell 12 are moved, the first tensioning connecting rod 24 is threadedly engaged with the first connecting hole 23. The inner end of the first tensioning connecting rod 24 can rub against the outer wall of the heat pump to achieve a loose or tight connection and reduce the probability of axial displacement of the first outer shell 11 and the second outer shell 12.

[0035] The third outer shell 2 has a radially formed second connecting hole 25 that passes through it. The second connecting hole 25 is fitted with a second loose connecting rod 26 that can be loosely or tightly connected with the first outer shell 11 and the second outer shell 12. Similarly, after the third outer shell 2 moves to the designated position, the second loose connecting rod 26 is threaded into the second connecting hole 25, and the inner end of the second loose connecting rod 26 can rub against the outer wall of the first outer shell 11 or the second outer shell 12 to achieve a loose connection and reduce the probability of axial displacement of the third outer shell 2.

[0036] A water pump 19 is installed on the top guide sleeve 16, and the outlet of the water pump 19 is connected to the water inlet 17 of the top guide sleeve 16. Hot water is pumped into the water storage chamber 191 of the top guide sleeve 16 through the water pump 19, and then into the hollow holes 15 of each connecting shaft 14 through the water storage chamber 191. The connecting shaft 14 is thermally connected to the heat insulation shell 1, and the heat is transferred to the heat insulation shell 1 to keep the heat pump warm. Then, the warm water is discharged through the drain port 18 and replaced with hot water of the same temperature to continue to be pumped in. This cycle is repeated to keep the heat pump warm.

[0037] In summary, this utility model possesses the aforementioned excellent characteristics, enabling it to achieve unprecedented efficiency in use and thus become a highly practical product.

[0038] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A thermal insulation structure for a low-temperature variable frequency heat pump, comprising an insulation shell fitted over the pump body, characterized in that: The heat insulation shell includes a first outer shell and a second outer shell that are axially spliced ​​together. A guide hole is coaxially formed between the first outer shell and the second outer shell. A connecting shaft passes through the guide hole. The connecting shaft is formed with a hollow hole for hot water to pass through. A top guide sleeve connected to multiple connecting shafts is installed on the top of the first outer shell. The top guide sleeve is formed with a top water storage cavity communicating with the hollow hole, as well as a water inlet and a water outlet communicating with the top water storage cavity. The insulation shell has a heat-insulating layered structure, which includes an inner insulation layer that fits into the pump body.

2. The insulation structure for a low-temperature variable frequency heat pump with energy storage according to claim 1, characterized in that: The insulation shell also includes a third shell that slides axially between the first shell and the second shell, the inner diameter of the third shell being larger than the outer diameter of the first shell and the second shell.

3. The insulation structure for a low-temperature variable frequency heat pump with energy storage according to claim 2, characterized in that: The outer diameters of the first and second outer shells are the same.

4. The insulation structure for a low-temperature variable frequency heat pump with energy storage according to claim 2, characterized in that: The first and second outer shells have raised guide rails formed on their outer surfaces along their length, and the third outer shell has a guide groove formed on its inner wall that slides with the guide rails.

5. The insulation structure for a low-temperature variable frequency heat pump with energy storage according to claim 1, characterized in that: The length of the connecting shaft is greater than the total length of the first housing and the second housing. A heat-conducting copper sleeve is fitted inside the guide hole of the first housing and the second housing. The first housing and the second housing can slide with the connecting shaft through the heat-conducting copper sleeve in the guide hole.

6. The insulation structure for a low-temperature variable frequency heat pump with energy storage according to claim 1, characterized in that: The layered structure also includes an outer insulation layer, and a heat-conducting layer is provided between the outer insulation layer and the inner insulation layer.

7. The insulation structure for a low-temperature variable frequency heat pump with energy storage according to claim 4, characterized in that: The first outer shell and the second outer shell are respectively radially formed with a through-hole first connecting hole, and a first tension connecting rod that can be loosely connected to the pump body is installed in the first connecting hole.

8. The insulation structure for a low-temperature variable frequency heat pump with energy storage according to claim 7, characterized in that: The third outer shell is radially formed with a through-hole for installing a second connecting hole, which is equipped with a second adjustable connecting rod that can be loosely or tightly connected to the first and second outer shells.

9. The insulation structure for a low-temperature variable frequency heat pump with energy storage according to claim 1, characterized in that: The top guide sleeve is equipped with a water pump, and the outlet of the water pump is connected to the inlet of the top guide sleeve.

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