CN216954144U - Heat exchanger and air-source heat pump system - Google Patents

Abstract

The utility model discloses a heat exchanger and an air energy heat pump system, which comprise an inner layer pipe, a middle layer pipe and an outer layer pipe which are sequentially sleeved from inside to outside; the inner layer pipe is provided with a first channel, a second channel is formed between the inner layer pipe and the middle layer pipe, and a third channel is formed between the middle layer pipe and the outer layer pipe; the both ends of inlayer pipe all are equipped with the first connector with first passageway intercommunication, and the both ends of intermediate layer pipe all are equipped with the second connector with second passageway intercommunication, and the both ends of outer pipe all are equipped with the third connector with third passageway intercommunication. Through setting up to the heat exchanger of three-layer, the inlayer can feed through the hot water tank of family life, and the outer temperature supply pipeline that can feed through the family room, and the intermediate level feeds through heat pump device, can be respectively or simultaneously carry out temperature treatment to the water of inlayer, outer circulation, has realized that can adopt a heat pump device to supply the temperature to two places in domestic hot water and room, domestic hot water and room temperature regulation safety isolation, the simple easy effect of operation of fluorine way.

Description

Heat exchanger and air energy heat pump system

Technical Field

The utility model relates to the technical field of temperature supply systems, in particular to a heat exchanger and an air energy heat pump system.

Background

For the general household air-conditioning heating and refrigerating requirements, three aspects of household room heating, room refrigerating and domestic hot water are required, and for the three requirements in the market at present, one two-connection high-power air-conditioning heat pump unit is generally adopted to provide room heating and room refrigerating, and in addition, one low-power heat pump unit is matched with a water tank to provide domestic hot water. The above-mentioned manner of temperature supply has the following disadvantages: 1. two heat pump units, namely two independent fluorine path systems and two independent electric control systems are needed, so that the system is complex and cannot be used universally, and the failure probability of the system is increased. 2. Because adopt two sets of system independent operation, unable coordination overall work, when the life hot water appears in the in-service use urgently needing, powerful heat pump set can't give life hot water heating, only can heat with miniwatt heat pump set, has caused the heat time long, uses the not good condition of experience.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art, and to this end, the present invention provides a heat exchanger and an air-source heat pump system.

The heat exchanger comprises an inner layer pipe, a middle layer pipe and an outer layer pipe which are sequentially sleeved from inside to outside;

the inner layer pipe is provided with a first channel, a second channel is formed between the inner layer pipe and the middle layer pipe, and a third channel is formed between the middle layer pipe and the outer layer pipe;

the two ends of the inner layer pipe are respectively provided with a first connecting port communicated with the first channel, the two ends of the middle layer pipe are respectively provided with a second connecting port communicated with the second channel, and the two ends of the outer layer pipe are respectively provided with a third connecting port communicated with the third channel.

The air-source heat pump system comprises a heat pump device, a first temperature supply device, a second temperature supply device and the heat exchanger;

the heat pump device is communicated with the second channel through the second connector, the first temperature supply device is communicated with the first channel through the first connector, and the second temperature supply device is communicated with the third channel through the third connector.

Has the beneficial effects that: through setting up to the heat exchanger of three-layer, the inlayer can communicate domestic hydrothermal water tank, and the skin can communicate family room heat supply pipeline, and the intermediate level communicates heat pump device, can carry out temperature treatment to inlayer, outer circulation's water respectively or simultaneously, has realized adopting a heat pump device to the domestic hot water and the room two department supplies the temperature, domestic hot water and room temperature regulation safety isolation, the simple easy effect of operation of fluorine way.

In some embodiments of the present invention, the first connection port is disposed along an axial direction of the inner pipe, and the first connection port is disposed coaxially with the inner pipe.

In some embodiments of the present invention, the second connection port is provided in a circumferential direction of the middle-layer pipe.

In some embodiments of the present invention, the third connection port is provided in a circumferential direction of the outer tube.

In some embodiments of the present invention, fins are provided on an inner side wall or an outer side wall of at least one of the inner layer tube, the middle layer tube and the outer layer tube.

In some embodiments of the utility model, the heat exchanger is polygonal in cross-sectional shape.

In some embodiments of the utility model, the heat exchanger is polygonal in cross-sectional shape and the sides are arranged in an arc.

In some embodiments of the present invention, the heat pump apparatus includes a refrigerant inlet port and a refrigerant return port respectively communicating with the second connection ports at both ends of the middle-layer tube;

the first temperature supply device comprises a first water inlet end and a first water outlet end which are respectively communicated with the first connecting ports at the two ends of the inner-layer pipe;

the second temperature supply device comprises a second water inlet end and a second water outlet end which are respectively communicated with third connectors at two ends of the inner-layer pipe.

In some embodiments of the present invention, the first temperature supply device further comprises a first water pump, the first water pump is communicated with the first channel through the first water inlet end or the first water outlet end;

the second temperature supply device further comprises a second water pump, and the second water pump is communicated with the third channel through the second water inlet end or the second water outlet end.

Drawings

The utility model is further described in the following with reference to the accompanying drawings, it is obvious that the drawings in the following description are some embodiments of the utility model, and that for a person skilled in the art, other drawings can be derived from these drawings without inventive effort.

FIG. 1 is a schematic perspective view of a heat exchanger according to an embodiment of the present invention;

FIG. 2 is a schematic left side view of the structure of FIG. 1;

FIG. 3 is a schematic sectional view of the structure of FIG. 2;

FIG. 4 is a structural schematic diagram of the cross-sectional shape of an inner tube or an intermediate or outer tube in one embodiment of the utility model;

FIG. 5 is a structural schematic diagram of the cross-sectional shape of an inner tube or an intermediate or outer tube in one embodiment of the utility model;

FIG. 6 is a structural schematic diagram of a cross section of an inner or middle or outer finned tube in an embodiment of the utility model;

FIG. 7 is a schematic diagram of a heat exchanger according to an embodiment of the present invention configured in a plate shape;

FIG. 8 is a schematic view of an air-to-energy heat pump system with heating according to an embodiment of the present invention;

fig. 9 is a schematic diagram of an air-to-heat pump system with refrigeration according to an embodiment of the present invention.

Reference numerals:

the heat exchanger 100, the inner layer pipe 110, the first channel 111, the first connection port 112, the middle layer pipe 120, the second channel 121, the second connection port 122, the outer layer pipe 130, the third channel 131, the third connection port 132, the inner side wall 210, the outer side wall 220, the fins 300, the heat pump device 400, the refrigerant inlet end 410, the refrigerant return end 420, the first water inlet end 510, the first water outlet end 520, the first water pump 560, the second water inlet end 610, the second water outlet end 620, the second water pump 630, the water tank 710, the compressor 720, the four-way valve 730, the evaporator 740, the temperature supply pipeline 750, and the throttling device 760.

Detailed Description

The following detailed description of the present invention is given for the purpose of better understanding technical solutions of the present invention by those skilled in the art, and the present description is only exemplary and explanatory and should not be construed as limiting the scope of the present invention in any way.

It is to be understood that, herein, if any terms such as "upper", "lower", "left", "right", "front", "rear", "longitudinal", "transverse", "axial", etc., indicate orientations or positional relationships based on those shown in the drawings, this is for convenience in describing and simplifying the present invention, and does not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the present invention.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Herein, the terms "first", "second", "third", etc. are used to distinguish different objects, but not to describe a particular order. As used herein, the terms "a", "an", and "the" are used interchangeably, and the term "a" and "an" are used interchangeably.

In the description herein, unless otherwise expressly limited, terms such as set forth, mounted, connected, and the like are to be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the context by combining the detailed description with the detailed description of the technical solutions.

Reference will now be made in detail to the present embodiments of the present invention, preferred embodiments of which are illustrated in the accompanying drawings, wherein the drawings are provided for the purpose of visually supplementing the description in the specification and so forth, and which are not intended to limit the scope of the utility model.

Referring to fig. 1 to 9, the present invention proposes a heat exchanger and an air-source heat pump system.

The heat exchanger 100 according to the first embodiment of the present invention includes an inner tube 110, a middle tube 120, and an outer tube 130, which are sequentially sleeved from inside to outside.

The inner layer tube 110 has a first passage 111, a second passage 121 is formed between the inner layer tube 110 and the middle layer tube 120, and a third passage 131 is formed between the middle layer tube 120 and the outer layer tube 130.

Both ends of the inner layer tube 110 are provided with first connection ports 112 communicated with the first channel 111, both ends of the middle layer tube 120 are provided with second connection ports 122 communicated with the second channel 121, and both ends of the outer layer tube 130 are provided with third connection ports 132 communicated with the third channel 131.

It is understood that the first connection port 112 is disposed along the axial direction of the inner tube 110, and the first connection port 112 is disposed coaxially with the inner tube 110. The second connection port 122 is provided in the circumferential direction of the intermediate pipe 120. The third connection port 132 is provided in the circumferential direction of the outer tube 130. It is understood that the first connection port 112 is configured as a pipe member fixedly connected to the inner pipe 110; the second connection port 122 is a pipe fitting fixedly connected to the middle pipe 120; the third connection port 132 is provided as a pipe member fixedly connected to the outer pipe 130.

With continued reference to fig. 6, in some embodiments, at least one of the inner tube 110, the middle tube 120, and the outer tube 130 has fins 300 on either the inner sidewall 210 or the outer sidewall 220. That is, the fins 300 are provided in one or more of the first channel 111, the second channel 121, and the third channel 131. By arranging the fins 300, the contact area between the medium and the tubes in each channel is increased, the heat transfer efficiency of the medium in each channel is improved, and the heat exchange efficiency of the whole heat exchanger 100 is improved.

In some embodiments, the cross-sectional shape of the heat exchanger 100 is polygonal. For example, the shape may be any of a triangle, a quadrangle, a pentagon, and the like. By being arranged in a polygon, the contact area between the medium and the pipe in each channel is increased, the heat transfer efficiency of the medium in each channel is improved, and the heat exchange efficiency of the whole heat exchanger 100 is improved. Further, at least one of the inner layer tube 110, the middle layer tube 120, and the outer layer tube 130 has a polygonal cross-sectional shape.

It is understood that the heat exchanger 100 has a polygonal cross-sectional shape and each side is provided in an arc shape, and further, at least one of the inner layer tube 110, the middle layer tube 120, and the outer layer tube 130 has a polygonal cross-sectional shape and each side is provided in an arc shape. With continued reference to fig. 4, the heat exchanger 100 as a whole or at least one of the inner tube 110, the middle tube 120, and the outer tube 130 of the heat exchanger 100 has a hexagonal cross-sectional shape with sides arranged in an arc shape. With continued reference to fig. 5, the heat exchanger 100 or at least one of the inner tube 110, the middle tube 120, and the outer tube 130 of the heat exchanger 100 has a quadrangular cross-sectional shape with the sides arranged in an arc shape. The polygonal heat exchanger is beneficial to manufacturing of each tube in the heat exchanger 100 by arranging each edge in an arc shape, increases the contact area between the medium and the tube in each channel, improves the heat transfer efficiency of the medium in each channel, and improves the heat exchange efficiency of the whole heat exchanger 100.

In some embodiments, the material of each tube in the heat exchanger 100 is copper or stainless steel or titanium alloy or PVC, which can improve the corrosion protection effect of the heat exchanger 100.

With continued reference to fig. 7, in some embodiments, the heat exchanger 100 is provided in the shape of an S-shaped disk. It is understood that the heat exchanger 100 may have any other curved shape.

The air-source heat pump system according to the embodiment of the second aspect of the present invention includes a heat pump device 400, a first temperature supplying device, a second temperature supplying device, and the heat exchanger 100 according to the embodiment of the first aspect of the present invention.

The heat pump device 400 is communicated with the second passage 121 through the second connection port 122, the first temperature supply device is communicated with the first passage 111 through the first connection port 112, and the second temperature supply device is communicated with the third passage 131 through the third connection port 132.

With continued reference to fig. 8 and 9, the heat pump apparatus 400 includes a refrigerant inlet port 410 and a refrigerant return port 420 communicating with the second connection ports 122 at both ends of the middle-stage pipe 120, respectively.

The first temperature supplying device comprises a first water inlet end 510 and a first water outlet end 520 which are respectively communicated with the first connecting port 112 at the two ends of the inner layer pipe 110, and a first water pump 560. In this embodiment, the first temperature supplying device is connected to a water tank 710 for domestic hot water. The water tank 710 for domestic hot water in the family room, the first water pump 560 and the first channel 111 are sequentially communicated end to form a domestic hot water heating circulation waterway.

The second temperature supplying device comprises a second water inlet end 610 and a second water outlet end 620 which are respectively communicated with the third connecting ports 132 at the two ends of the outer layer pipe 130, and a second water pump 630. In this embodiment, the second temperature supply device is communicated with the temperature supply pipeline 750 of the home room, and the water outlet of the temperature supply pipeline 750 of the home room, the second water pump 630, the third channel 131 and the water inlet of the temperature supply pipeline 750 of the home room are sequentially communicated end to form a home room heating and cooling circulation water channel.

The air energy heat pump system has the following use conditions:

referring to fig. 9, when the room needs cooling, the heat pump device 400 is turned on, the first water pump 560 is turned off, the second water pump 630 is turned on, and water in the heating pipe 750 of the home room is pumped into the third channel 131 in the heat exchanger 100. The compressor 720 sucks a low-temperature and low-pressure refrigerant, compresses the refrigerant into a high-temperature and high-pressure refrigerant, and enters the evaporator 740 through the DE port of the four-way valve 730 to release heat in the evaporator 740, thereby condensing the refrigerant into a medium-temperature and medium-pressure refrigerant. The medium-temperature and medium-pressure refrigerant is reduced in pressure by the throttling device 760 to become a low-temperature and low-pressure refrigerant, enters the second passage 121 of the heat exchanger 100, absorbs the heat of the water from the third passage 131, is evaporated to become a low-temperature and low-pressure refrigerant, returns to the compressor 720 through the CS port of the four-way valve 730, and forms a refrigeration cycle of an air-conditioning room.

Secondly, with continued reference to fig. 8, in cold weather, when the room needs heating. The heat pump apparatus 400 is turned on, the first water pump 560 is turned off, the second water pump 630 is turned on, and the water in the heating pipe 750 of the home room is pressed into the third passage 131 in the heat exchanger 100. The compressor 720 sucks the low-temperature and low-pressure refrigerant, compresses the refrigerant into a high-temperature and high-pressure refrigerant, and transmits the refrigerant into the second channel 121 of the heat exchanger 100 through the DC port of the four-way valve 730, the high-temperature and high-pressure refrigerant transfers heat to water in the third channel 131, and the temperature of the water in the third channel 131 rises after absorbing the heat. When the second water pump 630 is operated, the water goes to room heating, the temperature of the heat discharged water is reduced, and the water is pumped back to the third channel 131 of the heat exchanger 100 through the second water pump 630, so as to form a circulation of a heating water path. The high-temperature high-pressure refrigerant is cooled down after releasing heat and condensed into medium-temperature medium-pressure refrigerant. The medium-temperature and medium-pressure refrigerant is reduced in pressure by the throttling device 760 to become a low-temperature and low-pressure refrigerant, the low-temperature and low-pressure refrigerant enters the evaporator 740 to absorb heat from the evaporator 740, the low-temperature and low-pressure refrigerant is evaporated to become a low-temperature and low-pressure refrigerant, the low-temperature and low-pressure refrigerant returns to the compressor 720 through the SE port of the four-way valve 730, and the refrigerant forms a cycle for heating an air-conditioning room.

Thirdly, with continued reference to fig. 8, when the temperature of the water in the domestic hot water tank 710 is lowered and domestic hot water is needed. The heat pump apparatus 400 is turned on, the first water pump 560 is turned on, and the second water pump 630 is turned off. Pumping the low-temperature water in the domestic hot water tank 710 into the first channel 111 of the heat exchanger 100, absorbing the heat transferred by the refrigerant in the second channel 121 of the heat exchanger 100, increasing the temperature, returning to the domestic hot water tank 710, and heating in a reciprocating cycle. The compressor 720 sucks a low-temperature and low-pressure refrigerant, compresses the refrigerant into a high-temperature and high-pressure refrigerant, and enters the second passage 121 of the heat exchanger 100 through the DC port of the four-way valve 730, and the high-temperature and high-pressure refrigerant transfers heat to water in the first passage 111 of the heat exchanger 100. The high-temperature high-pressure refrigerant is cooled down after releasing heat and condensed into medium-temperature medium-pressure refrigerant. The medium-temperature and medium-pressure refrigerant is reduced in pressure by the throttle device 760, and then becomes a low-temperature and low-pressure refrigerant, enters the evaporator 740, absorbs heat from the evaporator 740, is evaporated into a low-temperature and low-pressure refrigerant, and returns to the compressor 720 through the SE port of the four-way valve 730. The refrigerant forms a cycle for domestic hot water heating.

The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that there are no specific structures but rather a few limitations to the preferred embodiments of the present invention, and that those skilled in the art can make various changes, modifications and alterations without departing from the spirit and scope of the utility model; such modifications, variations, combinations, or adaptations of the utility model using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments, or may be learned by practice of the utility model.

Claims (10)

1. A heat exchanger, characterized by: comprises an inner layer pipe, a middle layer pipe and an outer layer pipe which are sequentially sleeved from inside to outside;

the inner layer pipe is provided with a first channel, a second channel is formed between the inner layer pipe and the middle layer pipe, and a third channel is formed between the middle layer pipe and the outer layer pipe;

the two ends of the inner layer pipe are respectively provided with a first connecting port communicated with the first channel, the two ends of the middle layer pipe are respectively provided with a second connecting port communicated with the second channel, and the two ends of the outer layer pipe are respectively provided with a third connecting port communicated with the third channel.

2. The heat exchanger of claim 1, wherein: the first connecting port is arranged along the axial direction of the inner-layer pipe, and the first connecting port and the inner-layer pipe are coaxially arranged.

3. The heat exchanger of claim 1, wherein: the second connecting port is arranged on the circumference of the middle-layer pipe.

4. The heat exchanger of claim 1, wherein: the third connecting port is arranged on the periphery of the outer layer pipe.

5. The heat exchanger of claim 1, wherein: fins are arranged on the inner side wall or the outer side wall of at least one of the inner layer pipe, the middle layer pipe and the outer layer pipe.

6. The heat exchanger according to claim 1 or 5, wherein: the cross section of the heat exchanger is polygonal.

7. The heat exchanger of claim 1 or 5, wherein: the cross section of the heat exchanger is polygonal and each side is arc-shaped.

8. Air-source heat pump system, its characterized in that: comprising a heat pump device, a first temperature supply device, a second temperature supply device and a heat exchanger according to any one of claims 1 to 7;

the heat pump device is communicated with the second channel through the second connector, the first temperature supply device is communicated with the first channel through the first connector, and the second temperature supply device is communicated with the third channel through the third connector.

9. The air-energy heat pump system of claim 8, wherein: the heat pump device comprises a refrigerant inlet end and a refrigerant return end which are respectively communicated with the second connecting ports at the two ends of the middle-layer pipe;

the first temperature supply device comprises a first water inlet end and a first water outlet end which are respectively communicated with the first connecting ports at the two ends of the inner-layer pipe;

the second temperature supply device comprises a second water inlet end and a second water outlet end which are respectively communicated with third connectors at two ends of the inner-layer pipe.

10. The air-energy heat pump system of claim 9, wherein: the first temperature supply device also comprises a first water pump which is communicated with the first channel through the first water inlet end or the first water outlet end;

the second temperature supply device further comprises a second water pump, and the second water pump is communicated with the third channel through the second water inlet end or the second water outlet end.

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