CN220871119U - Defrosting module and heat pump system - Google Patents
Defrosting module and heat pump system Download PDFInfo
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- CN220871119U CN220871119U CN202322683472.9U CN202322683472U CN220871119U CN 220871119 U CN220871119 U CN 220871119U CN 202322683472 U CN202322683472 U CN 202322683472U CN 220871119 U CN220871119 U CN 220871119U
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- water
- heat exchanger
- defrosting
- side heat
- hot water
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- 238000010257 thawing Methods 0.000 title claims abstract description 45
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 172
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims abstract description 46
- 238000004378 air conditioning Methods 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 239000003507 refrigerant Substances 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 230000000087 stabilizing effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a defrosting module and a heat pump system. The water-water heat exchanger is connected with the hot water equipment to form a hot water circulation loop, and is also used for being connected with external terminal equipment and the air conditioner side heat exchanger. In the defrosting mode, hot water in the hot water equipment circularly flows through the water-water heat exchanger, and the water-water heat exchanger is used for heating backwater from the external terminal equipment and then conveying the backwater to the air-conditioning side heat exchanger. According to the utility model, the water-water heat exchanger is added between the hot water equipment and the air conditioner side heat exchanger, and in the defrosting process, the heat of hot water is transferred to backwater from the external terminal equipment through the water-water heat exchanger, so that the effect of stabilizing the water temperature is achieved, and then the backwater is transferred to the air conditioner side heat exchanger, and the dependence of a heat pump system on a buffer water tank in defrosting is further reduced.
Description
Technical Field
The utility model relates to the technical field of defrosting, in particular to a defrosting module and a heat pump system.
Background
With the continuous progress of technology, air conditioning has become one of the indispensable appliances in people's life. In the heating process in winter, when the outdoor environment temperature is low, frosting is often generated on the surface of the fin heat exchanger of the outdoor unit, and the heat exchange efficiency and the heating capacity of the unit are affected. When the frosting quantity is accumulated to a certain degree, the unit can be stopped in an alarm mode. Therefore, when the frosting of the unit reaches a certain amount, the frosting operation is required. In the prior art, in order to keep the water temperature stable during defrosting, a buffer water tank with a certain capacity is necessarily arranged.
Disclosure of utility model
The technical problem to be solved by the present utility model is to address at least one of the drawbacks of the related art mentioned in the background art above: when the conventional unit is in defrosting operation, a buffer water tank with a certain capacity is needed to be relied on, and a defrosting module and a heat pump system are provided.
The technical scheme adopted for solving the technical problems is as follows: a defrosting module is constructed, comprising:
A water heating device;
An air conditioner side heat exchanger;
The water-water heat exchanger is connected with the hot water equipment to form a hot water circulation loop, and is also used for being connected with external terminal equipment and the air conditioner side heat exchanger;
In the defrosting mode, hot water in the hot water equipment circularly flows through the water-water heat exchanger, and the water-water heat exchanger is used for heating backwater from the external terminal equipment and then conveying the backwater to the air-conditioning side heat exchanger.
In one embodiment, in the defrosting module, the water-water heat exchanger comprises a first water input, a first water output communicated with the first water input, a second water input and a second water output communicated with the second water input;
The first water input port and the first water output port are connected with the water heating equipment to form a hot water circulation loop;
The second water input port is used for being connected with a water outlet of the external terminal equipment through a pipeline, and the second water output port is connected with the air conditioner side heat exchanger.
In one embodiment, in the defrosting module of the utility model, the direction of water flow from the first water input to the first water output is opposite to the direction of water flow from the second water input to the second water output.
In one embodiment, in the defrosting module of the utility model, the water-water heat exchanger is a plate heat exchanger or a double pipe heat exchanger.
In one embodiment, in the defrosting module of the utility model, the air-conditioning side heat exchanger comprises a third water input and a third water output communicated with the third water input;
the third water inlet is connected with the water-water heat exchanger, and the third water outlet is connected with the water inlet of the external terminal equipment through a pipeline.
In one embodiment, in the defrosting module of the present utility model, the air-conditioning side heat exchanger further includes a first refrigerant interface and a second refrigerant interface that is communicated with the first refrigerant interface.
In one embodiment, in the defrosting module of the utility model, the hot water device is a living hot water tank.
In one embodiment, in the defrosting module of the present utility model, the defrosting module further includes:
The first water pump is arranged on the hot water circulation loop at the inlet end of the water-water heat exchanger and drives hot water to circulate through the water-water heat exchanger.
The present utility model also constructs a heat pump system comprising:
an end device;
a hydraulic module;
an outdoor host comprising a domestic hot water tank and a defrosting module as described in any one of the above;
The air conditioner side heat exchanger, the tail end equipment, the hydraulic module and the water-water heat exchanger are sequentially connected to form a water circulation loop.
In one embodiment, in the heat pump system of the present utility model, the hydraulic module includes a second water pump that delivers the chilled return water of the end device to the water-water heat exchanger.
By implementing the utility model, the following beneficial effects are achieved:
According to the utility model, the water-water heat exchanger is added between the hot water equipment and the air conditioner side heat exchanger, and in the defrosting process, the heat of hot water is transferred to backwater from the external terminal equipment through the water-water heat exchanger, so that the effect of stabilizing the water temperature is achieved, and then the backwater is transferred to the air conditioner side heat exchanger, and the dependence of a heat pump system on a buffer water tank in defrosting is further reduced.
Drawings
The utility model will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic view of a defrosting module of the present utility model;
fig. 2 is a schematic diagram of a heat pump system of the present utility model.
Detailed Description
For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus 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", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "disposed," and "located" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or chemically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art in a specific case.
As shown in fig. 1, an embodiment of the present utility model discloses a defrosting module including a hot water apparatus 11, a water pump 12, an air conditioner side heat exchanger 13, and a water-water heat exchanger 14, concretely as follows:
The water-water heat exchanger 14 is connected to the hot water apparatus 11 to form a hot water circulation circuit, and the water-water heat exchanger 14 is also connected to the external terminal apparatus 2 (shown in fig. 2) and the air-conditioning-side heat exchanger 13. In the defrosting mode, the hot water in the hot water device 11 circulates through the water-water heat exchanger 14, and the water-water heat exchanger 14 is used for heating the backwater from the external terminal device 2 and then delivering the backwater to the air-conditioning-side heat exchanger 13.
In this embodiment, the water-water heat exchanger 14 is added between the water heating device 11 and the air-conditioning side heat exchanger 13, and in the defrosting process, the heat of the hot water is transferred to the backwater from the external terminal device 2 through the water-water heat exchanger 14, so as to achieve the effect of stabilizing the water temperature, and then the backwater is transferred to the air-conditioning side heat exchanger 13, so that the dependency of the heat pump system on the buffer water tank during defrosting is reduced.
Specifically, the first water pump 12 is disposed on the hot water circulation loop at the inlet end of the water-water heat exchanger 14, and the first water pump 12 drives hot water to circulate through the water-water heat exchanger 14.
The water-water heat exchanger 14 includes a first water input port 141, a first water output port 142 in communication with the first water input port 141, a second water input port 143, and a second water output port 144 in communication with the second water input port 143.
The first water input port 141 and the first water output port 142 are connected to the water heating apparatus 11 to form a hot water circulation circuit, and the first water pump 12 is specifically disposed between the first water input port 141 and the water heating apparatus 11. The second water inlet 143 is connected to the water outlet 22 of the external terminal device 2 (as shown in fig. 2) through a pipe, and the second water outlet 144 is connected to the air-conditioning side heat exchanger 13.
In order to better transfer the heat of the hot water to the return water from the external end device 2, the direction of the water flow from the first water input port 141 to the first water output port 142 is opposite to the direction of the water flow from the second water input port 143 to the second water output port 144. In other embodiments, the water flow direction of the two paths may be the same.
The air-conditioning side heat exchanger 13 includes a third water input port 131, a third water output port 132 communicating with the third water input port 131, a first refrigerant interface (not shown), and a second refrigerant interface (not shown) communicating with the first refrigerant interface.
The third water inlet 131 is connected to the water-water heat exchanger 14, in particular to the second water outlet 144 of the water-water heat exchanger 14, and the third water outlet 132 is adapted to be connected to the water inlet 21 of the external terminal device 2 (as shown in fig. 2) by means of a pipe.
In this embodiment, the end device 2 is a device disposed in a space and used for controlling a temperature of the space, for example, the end device 2 is specifically at least one of a fan coil, a floor heating pipe, and a radiator, the hot water device 11 is specifically a living hot water tank, and the water-water heat exchanger 14 and the air-conditioning side heat exchanger 13 are specifically plate heat exchangers or double pipe heat exchangers, which are not limited herein.
As shown in fig. 2, an embodiment of the present utility model discloses a heat pump system including an outdoor main unit 1, an end device 2, and a hydraulic module 3, specifically as follows:
the outdoor unit 1 includes a domestic hot water tank and the defrosting module according to the above embodiment, and the hot water apparatus 11 is the domestic hot water tank. Wherein the air-conditioning side heat exchanger 13, the terminal device 2, the hydraulic module 3 and the water-water heat exchanger 14, which are sequentially connected, form a water circulation loop. Specifically, the third water outlet 132 of the air-conditioning side heat exchanger 13 is connected to the water inlet 21 of the end device 2, the water outlet 22 of the end device 2 is connected to the inlet of the second water pump 31 of the hydraulic module 3, the outlet of the second water pump 31 is connected to the second water inlet 143 of the water-water heat exchanger 14, and the second water outlet 144 of the water-water heat exchanger 14 is connected to the third water inlet 131 of the air-conditioning side heat exchanger 13.
And, the hydraulic module 3 includes a second water pump 31, and the second water pump 31 conveys the cold backwater of the terminal device 2 to the water-water heat exchanger 14. Due to the design of the water-water heat exchanger 14, the hydraulic module 3 may be free of a buffer water tank or the volume of the buffer water tank may be small, so that the dependency on the buffer water tank when defrosting the heat pump system is reduced, and the volume of the hydraulic module 3 may also be reduced, since in general the buffer water tank in the hydraulic module 3 may occupy a large volume, in particular when the hydraulic module 3 is arranged indoors, the volume should be as small as possible.
The outdoor unit 1, in its entirety, further comprises a compressor, a four-way valve, an outdoor side heat exchanger and a throttle device. In the prior art, in a heating mode, a high-temperature refrigerant output by a compressor enters an air-conditioning side heat exchanger 13 to release heat after being commutated by a four-way valve, the air-conditioning side heat exchanger 13 exchanges heat with circulating water in terminal equipment 2, the terminal equipment 2 returns to the air-conditioning side heat exchanger 13 after being heated by a buffer water tank of a hydraulic module 3, warm water is stored in the buffer water tank, then the refrigerant after releasing heat enters an outdoor side heat exchanger to absorb heat after passing through a throttling device, and finally the refrigerant after absorbing heat returns to an inlet of the compressor after being commutated by the four-way valve to finish heating.
In the prior art, when the outdoor temperature is lower, the outdoor side heat exchanger is easy to frost, so that the outdoor side heat exchanger needs to be switched to a defrosting mode, namely, the four-way valve is adjusted, the direction of the refrigerant is changed into the direction of the refrigerant during refrigeration, the high-temperature refrigerant output by the compressor enters the outdoor side heat exchanger after being commutated through the four-way valve, the outdoor side heat exchanger releases heat to defrost, then the refrigerant after releasing heat enters the air conditioner side heat exchanger 13 after passing through the throttling device to absorb heat, at the moment, the warm water stored in the buffer water tank during the prior heating is needed to be relied on, the air conditioner side heat exchanger 13 exchanges heat with the warm water, and finally, the refrigerant after absorbing heat returns to the inlet of the compressor after being commutated through the four-way valve to complete defrosting.
When the hydraulic module 3 is switched to a defrosting mode under the condition that the buffer water tank is not available or the small-sized stored warm water of the buffer water tank is insufficient, the first water pump 12 and the water-water heat exchanger 14 are started, a high-temperature refrigerant output by the compressor is reversed through the four-way valve and then enters the outdoor side heat exchanger, the outdoor side heat exchanger releases heat to defrost, then the cooled refrigerant enters the air-conditioner side heat exchanger 13 through the throttling device to absorb heat, at the moment, the water-water heat exchanger 14 heats backwater from the tail end device 2 to achieve the effect of stabilizing the water temperature, the heated backwater is conveyed into the air-conditioner side heat exchanger 13 to exchange heat with the refrigerant, and finally the refrigerant after heat absorption is reversed through the four-way valve and then returns to the inlet of the compressor to complete defrosting.
It is to be understood that the above examples represent only some embodiments of the utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above embodiments or technical features may be freely combined, and several variations and modifications may be made, without departing from the spirit of the utility model, which fall within the scope of the utility model, i.e. the embodiments described in "some embodiments" may be freely combined with any of the above and below embodiments; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. A defrosting module, comprising:
A water heating device;
An air conditioner side heat exchanger;
The water-water heat exchanger is connected with the hot water equipment to form a hot water circulation loop, and is also used for being connected with external terminal equipment and the air conditioner side heat exchanger;
In the defrosting mode, hot water in the hot water equipment circularly flows through the water-water heat exchanger, and the water-water heat exchanger is used for heating backwater from the external terminal equipment and then conveying the backwater to the air-conditioning side heat exchanger.
2. The defrosting module of claim 1 wherein the water-water heat exchanger comprises a first water input, a first water output in communication with the first water input, a second water input, and a second water output in communication with the second water input;
The first water input port and the first water output port are connected with the water heating equipment to form a hot water circulation loop;
The second water input port is used for being connected with a water outlet of the external terminal equipment through a pipeline, and the second water output port is connected with the air conditioner side heat exchanger.
3. The defrosting module of claim 2 wherein the direction of water flow from the first water input to the first water output is opposite to the direction of water flow from the second water input to the second water output.
4. The defrosting module of claim 1 wherein the water-water heat exchanger is a plate heat exchanger or a double pipe heat exchanger.
5. The defrosting module of claim 1 wherein the air conditioning side heat exchanger comprises a third water input and a third water output in communication with the third water input;
the third water inlet is connected with the water-water heat exchanger, and the third water outlet is connected with the water inlet of the external terminal equipment through a pipeline.
6. The defrosting module of claim 5 wherein the air conditioning side heat exchanger further comprises a first refrigerant interface and a second refrigerant interface in communication with the first refrigerant interface.
7. The defrosting module of claim 1 wherein the hot water device is a living hot water tank.
8. The defrosting module of claim 1, further comprising:
The first water pump is arranged on the hot water circulation loop at the inlet end of the water-water heat exchanger and drives hot water to circulate through the water-water heat exchanger.
9. A heat pump system, comprising:
an end device;
a hydraulic module;
An outdoor unit comprising a domestic hot water tank and a defrosting module according to any one of claims 1 to 8;
The air conditioner side heat exchanger, the tail end equipment, the hydraulic module and the water-water heat exchanger are sequentially connected to form a water circulation loop.
10. The heat pump system of claim 9, wherein the hydraulic module includes a second water pump that delivers cold return water of the end device to the water-to-water heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322683472.9U CN220871119U (en) | 2023-09-28 | 2023-09-28 | Defrosting module and heat pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322683472.9U CN220871119U (en) | 2023-09-28 | 2023-09-28 | Defrosting module and heat pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220871119U true CN220871119U (en) | 2024-04-30 |
Family
ID=90811417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322683472.9U Active CN220871119U (en) | 2023-09-28 | 2023-09-28 | Defrosting module and heat pump system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220871119U (en) |
-
2023
- 2023-09-28 CN CN202322683472.9U patent/CN220871119U/en active Active
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