CN210320591U - Heat exchange equipment and hot water heating integrated air conditioning system - Google Patents

Abstract

The utility model relates to a indirect heating equipment and hot water heating integration air conditioning system, wherein indirect heating equipment includes the stock solution casing, the stock solution casing has enclosed into the stock solution chamber, be equipped with the heat exchange tube in the stock solution chamber, be equipped with in the heat exchange tube and cut apart the piece that trades, it will to cut apart the piece that trades refrigerant route and walk the water route for cavity in the heat exchange tube, refrigerant in the refrigerant route can pass through the heat exchange tube with first medium heat transfer in the stock solution chamber, refrigerant in the refrigerant route can pass through cut apart the piece that trades with walk the second medium heat transfer in the water route. When the refrigerant passes through the refrigerant passage, the refrigerant can exchange heat with the first medium in the liquid storage cavity and also exchange heat with the second medium in the water passage. Two heat exchange processes are directly carried out in the liquid storage shell, complex pipelines do not need to be arranged, and the whole structure is simple.

Description

Heat exchange equipment and hot water heating integrated air conditioning system

Technical Field

The utility model relates to a heat field especially relates to indirect heating equipment and hot water heating integration air conditioning system.

Background

In the heating field, there are cases of heating domestic water and indoor heating. Generally, in order to satisfy two functions of a user, a hot water supply system and a heating system are spliced together. That is, a hot water supply line and a heating line are provided indoors and are independently provided. When heating is needed, the heating pipeline is communicated with the outdoor unit, and when hot water is needed, the hot water supply pipeline is communicated with the outdoor unit. The water heater is simple in structure and function, requirements of hot water supply and heating functions can be met, the pipeline arrangement is complicated, and the occupied space of the whole system is large.

SUMMERY OF THE UTILITY MODEL

Based on this, it is necessary to provide an integrated air conditioning system with heat exchange equipment and hot water heating, so as to achieve both hot water supply and heating requirements with a simple structure.

The heat exchange equipment comprises a liquid storage shell, wherein a liquid storage cavity is enclosed by the liquid storage shell, a heat exchange tube is arranged in the liquid storage cavity, a partition heat exchange piece is arranged in the heat exchange tube, the partition heat exchange piece divides a cavity in the heat exchange tube into a refrigerant passage and a water passage, a refrigerant in the refrigerant passage can exchange heat with a first medium in the liquid storage cavity through the heat exchange tube, and the refrigerant in the refrigerant passage can exchange heat with a second medium in the water passage through the partition heat exchange piece.

The above scheme provides a heat exchange device, through set up the heat exchange tube in the stock solution chamber, and form in the heat exchange tube the refrigerant passageway. When the refrigerant passes through the refrigerant passage, the refrigerant can exchange heat with the first medium in the liquid storage cavity and can also exchange heat with the second medium in the water passage. Specifically, the first medium may be domestic water, and the second medium may be wind pan heating water, thereby achieving simultaneous heating and warming requirements. Moreover, the two heat exchange processes are directly carried out in the liquid storage shell, complex pipelines do not need to be arranged, and the whole structure is simple. When the refrigerant passes through the refrigerant passage, the heat exchange is carried out on the heat supply system and the heating system at the same time, the heat exchange efficiency is high, the conversion rate is close to 100%, and the operation energy efficiency of the whole machine is high.

In one embodiment, the dividing heat exchange piece is an inner tube inserted in the heat exchange tube, the inner tube and the heat exchange tube are arranged at intervals to form the refrigerant passage, and the inner tube surrounds the water flowing passage.

In one embodiment, the inner tube is coaxially disposed with the heat exchange tube to form a coaxial sleeve.

In one embodiment, the heat exchange tube is a U-shaped tube, and the inner tube is a U-shaped tube coaxially arranged in the heat exchange tube.

In one embodiment, the heat exchange device further comprises a joint assembly, wherein a refrigerant introducing passage, a refrigerant guiding passage, a water draining introducing passage and a water draining guiding passage are arranged in the joint assembly, the refrigerant introducing passage is communicated with an inlet of the refrigerant passage, an outlet of the refrigerant passage is communicated with the refrigerant guiding passage, the water draining introducing passage is communicated with an inlet of the water draining passage, and an outlet of the water draining passage is communicated with the water draining guiding passage.

In one embodiment, the number of the heat exchange tubes is multiple, the refrigerant passage in each heat exchange tube is communicated with the refrigerant introducing passage and the refrigerant leading-out passage, and the water passing passage in each heat exchange tube is communicated with the water passing introducing passage and the water passing leading-out passage.

In one embodiment, the lengths of the water passing passages in the heat exchange tubes are different, the on-off state of each water passing passage is adjustable, and/or the on-off state of each refrigerant passage is adjustable.

In one embodiment, a refrigerant pipe is further disposed in the liquid storage cavity, an inlet of the refrigerant pipe is communicated with the refrigerant introducing passage, an outlet of the refrigerant pipe is communicated with the refrigerant guiding passage, and the refrigerant in the refrigerant pipe can exchange heat with the first medium through the refrigerant pipe.

In one embodiment, the on-off of the refrigerant pipe is adjustable.

In one embodiment, the joint assembly includes a wind disk joint and a coolant joint, the coolant joint is located between the wind disk joint and the liquid storage cavity, the coolant introduction path and the coolant discharge path are both disposed in the coolant joint, the water feed introduction path and the water feed discharge path are both disposed in the wind disk joint, the water feed path penetrates through the coolant joint and extends into the wind disk joint, the first medium is domestic water, and the second medium is wind disk heating water.

In one embodiment, the liquid storage shell is provided with a water inlet and a water outlet.

A hot water heating integrated air conditioning system comprises the heat exchange equipment.

According to the scheme, the heat exchange equipment is arranged in the hot water heating integrated air conditioning system, so that a refrigerant passes through the refrigerant passage, the heating process of domestic water and air disc heating water can be simultaneously realized, the heat exchange efficiency is high, the conversion rate is close to 100%, and the operation energy efficiency of the whole air conditioning system is high. The two heat exchange processes can be completed in the liquid storage shell, so that a complex pipeline is not required to be arranged in the hot water heating integrated air conditioning system, and the whole structure of the system is simple.

In one embodiment, the integrated air conditioning system for hot water heating further comprises an external unit system, a hot water system and an air disc system, the external unit system is communicated with the refrigerant passage to form a refrigerant circulation loop, the hot water system is communicated with the liquid storage cavity to form a domestic water circulation loop, and the air disc system is communicated with the water running passage to form an air disc heating water circulation loop.

Drawings

FIG. 1 is a sectional view of the heat exchange device of the present embodiment;

FIG. 2 is a schematic structural view of a heat exchange tube and an inner tube in the heat exchange apparatus shown in FIG. 1;

FIG. 3 is a cross-sectional view of a portion of the heat exchange apparatus of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

fig. 5 is a system diagram of the integrated air conditioning system for hot water heating according to the present embodiment.

Description of reference numerals:

10. the heat exchange device comprises a heat exchange device 11, a liquid storage shell 111, a liquid storage cavity 112, a water inlet 113, a water outlet 114, a sewage draining outlet 12, a heat exchange pipe 121, a refrigerant passage 13, a split heat exchange piece 131, a water flowing passage 14, a connector assembly 141, a wind disc connector 1411, a water flowing introduction passage 1412, a water flowing guide passage 142, a refrigerant connector 1421, a refrigerant introduction passage 1422, a refrigerant guide passage 20, a hot water heating integrated air conditioning system 21, an external unit system 22, a hot water system 23 and a wind disc system.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms other than those specifically described herein, and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention, and it is therefore not to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

As shown in FIG. 1, in one embodiment, a heat exchange device 10 is provided, comprising a liquid storage housing 11, wherein the liquid storage housing 11 encloses a liquid storage cavity 111. A heat exchange tube 12 is arranged in the liquid storage cavity 111, and a partition heat exchange piece 13 is arranged in the heat exchange tube 12. The cavity in the heat exchange tube 12 is divided into a refrigerant passage 121 and a water passage 131 by the dividing heat exchanger 13, the refrigerant in the refrigerant passage 121 can exchange heat with the first medium in the liquid storage cavity 111 through the heat exchange tube 12, and the refrigerant in the refrigerant passage 121 can exchange heat with the second medium in the water passage 131 through the dividing heat exchanger 13.

The heat exchange tube 12 is disposed in the liquid storage cavity 111, and the refrigerant passage 121 is formed in the heat exchange tube 12. When the refrigerant passes through the refrigerant passage 121, the refrigerant can exchange heat with the first medium in the liquid storage cavity 111 and also exchange heat with the second medium in the water passage 131. In particular, the first medium may be domestic water and the second medium may be pan heating water, thereby fulfilling both heating and heating requirements. Moreover, the two heat exchange processes are directly carried out in the liquid storage shell 11, no complex pipeline needs to be arranged, and the whole structure is simple. When the refrigerant passes through the refrigerant passage 121, heat exchange is simultaneously performed on the hot water system 22 and the air disc system 23, the heat exchange efficiency is high, the conversion rate is close to 100%, and the operation energy efficiency of the whole machine is high.

When the heat exchange device 10 is used, if only heating is needed and hot water is not needed, water may not be contained in the liquid storage cavity 111, so that the refrigerant only transfers energy to the second medium. Of course, if only hot water is required and heating is not required, the second medium may not be passed through the water passage 131. That is, the heat exchanger 10 is suitable for both the demand of supplying hot water and heating, and the demand of supplying hot water or heating separately.

Specifically, as shown in fig. 2, in one embodiment, the heat dividing and exchanging member 13 is an inner tube inserted into the heat exchanging tube 12, the inner tube and the heat exchanging tube 12 are arranged at an interval to form the refrigerant passage 121, and the inner tube surrounds the water flowing passage 131.

In the heating process, a refrigerant flows in the refrigerant passage 121, a second medium flows in the water flowing passage 131, and the liquid storage cavity 111 contains a first medium, so that the heating process of the first medium and the second medium is realized simultaneously.

Of course, alternatively, the heat dividing and exchanging element 13 may also be a partition plate disposed in the heat exchanging tube 12, the partition plate being disposed along the axial direction of the heat exchanging tube 12 and dividing the radial cross section of the heat exchanging tube 12 into two parts, one part of the corresponding passage being the refrigerant passage 121, and the other part of the corresponding passage being the water passing passage 131.

No matter how the cavity in the heat exchange tube 12 is divided by the heat dividing and exchanging member 13 to obtain the refrigerant passage 121 and the water passing passage 131, the heat dividing and exchanging member 13 is a device capable of realizing heat transfer, that is, the refrigerant in the refrigerant passage 121 can exchange heat with the second medium in the water passing passage 131. Similarly, the heat exchange tube 12 is also a device capable of realizing heat transfer, that is, the refrigerant in the refrigerant passage 121 can exchange heat with the first medium in the liquid storage cavity 111.

Specifically, in one embodiment, as shown in fig. 2, when the divided heat exchange member 13 is the inner tube, the inner tube is disposed coaxially with the heat exchange tube 12 to form a coaxial sleeve. And the inner layer channel of the coaxial sleeve pipe is used for passing the second medium, and the outer layer annular channel is used for passing the refrigerant.

Further specifically, in one embodiment, as shown in fig. 1 and 3, the heat exchange tube 12 is a U-shaped tube, and the inner tube is a U-shaped tube coaxially disposed in the heat exchange tube 12.

I.e. the coaxial sleeve is a U-shaped structure, which is mounted in the reservoir 111. The refrigerant flows in from one end of a U-shaped refrigerant passage 121 formed between the heat exchange tube 12 and the inner tube, and flows out from the other end. Similarly, the second medium flows in from one end of the inner pipe, and flows out from the other end of the inner pipe.

Further, in an embodiment, as shown in fig. 1, 3 and 4, the heat exchanger 10 further includes a joint assembly 14, the joint assembly 14 is provided with a refrigerant introducing passage 1421, a refrigerant discharging passage 1422, a water flowing introducing passage 1411 and a water flowing out passage 1412, the refrigerant introducing passage 1421 is communicated with an inlet of the refrigerant passage 121, an outlet of the refrigerant passage 121 is communicated with the refrigerant discharging passage 1422, the water flowing in passage 1411 is communicated with an inlet of the water flowing passage 131, and an outlet of the water flowing passage 131 is communicated with the water flowing out passage 1412.

In use, a refrigerant enters the refrigerant passage 121 from the refrigerant inlet passage 1421, exchanges heat in the refrigerant passage 121, and then flows out of the heat exchange device 10 from the refrigerant outlet passage 1422. Similarly, the second medium enters the water passage 131 from the water inlet passage 1411, exchanges heat, and then flows out of the heat exchanger 10 from the water outlet passage 1412. Generally, the high-temperature refrigerant generated by the outdoor unit flows back to the outdoor unit after sequentially passing through the refrigerant introduction path 1421, the refrigerant path 121, and the refrigerant discharge path 1422. The second medium for air-tray heating circulates through the end heat exchanger, the water passage 1411, the water passage 131, and the water passage 1412.

Specifically, as shown in fig. 1, the connector assembly 14 may be disposed at an opening of the reservoir housing 11, and the opening of the reservoir housing 11 is closed to form the reservoir cavity 111.

As shown in fig. 1 to 4, in one embodiment, the heat exchange tubes 12 are plural, the refrigerant passage 121 of each heat exchange tube 12 is communicated with the refrigerant introducing passage 1421 and the refrigerant discharging passage 1422, and the water passing passage 131 of each heat exchange tube 12 is communicated with the water passing introducing passage 1411 and the water passing discharging passage 1412.

Therefore, the heat exchange quantity is improved, and the heat exchange process can be participated by selecting a proper number of heat exchange tubes 12, so that the overall heat exchange efficiency is improved, and the application range is enlarged.

Further, in one embodiment, the lengths of the water paths 131 in the heat exchange tubes 12 are different, the on/off of each water path 131 is adjustable, and/or the on/off of each refrigerant path 121 is adjustable.

Therefore, in the use process, the water passage 131 with a proper length can be selected to participate in the heat exchange process of the second medium according to the requirement. For example, when the heat exchange area required for the air panel system 23 is reduced, the heat exchange tubes 12 having a shorter length of the water passage 131 can be selected to participate in the heat exchange process. Specifically, the water passage 131 with a shorter length is opened, and the water passage 131 with a longer length is closed; or the refrigerant passage 121 corresponding to the water passage 131 with shorter length is opened, and the refrigerant passage 121 corresponding to the water passage 131 with longer length is closed.

For example, when the heat exchange tubes 12 are U-shaped tubes and the inner tubes are also U-shaped tubes, the lengths of the water passage 131 in the heat exchange tubes 12 may be different by setting the lengths of the respective U-shaped tubes to be different.

Specifically, the on-off adjustment process of the water passage 131 and the refrigerant passage 121 may be realized by providing a switch valve.

Further, in an embodiment, a refrigerant pipe is further disposed in the liquid storage cavity 111, an inlet of the refrigerant pipe is communicated with the refrigerant introducing passage 1421, an outlet of the refrigerant pipe is communicated with the refrigerant guiding passage 1422, and the refrigerant in the refrigerant pipe can exchange heat with the first medium through the refrigerant pipe.

That is, the refrigerant pipe is only used for flowing refrigerant, in the integrated air conditioning system, the requirement for heat exchange of a general air plate is relatively low, a part of refrigerant can flow through the refrigerant pipe through the liquid storage cavity 111 to exchange heat with the first medium in the liquid storage cavity 111, and the refrigerant in the refrigerant pipe cannot exchange heat with the second medium.

More specifically, in one embodiment, the on-off of the refrigerant pipe is adjustable. The on-off of the refrigerant pipe can be flexibly controlled, so that the refrigerant quantity exchanging heat with the first medium and the refrigerant quantity exchanging heat with the second medium can be adjusted according to the needs of users.

Similar to the on-off adjustment process of the water passage 131 and the refrigerant passage 121, the on-off adjustment process of the refrigerant pipe can also be performed by arranging a switch valve on the refrigerant pipe, wherein the refrigerant pipe is switched on when the switch valve is opened, and the refrigerant pipe is switched off when the switch valve is closed.

More specifically, as shown in fig. 3 and 4, in one embodiment, the connector assembly 14 includes a wind disk connector 141 and a coolant connector 142, and the coolant connector 142 is located between the wind disk connector 141 and the liquid storage cavity 111. The refrigerant introduction passage 1421 and the refrigerant discharge passage 1422 are both provided in the refrigerant joint 142, and the drain introduction passage 1411 and the drain discharge passage 1412 are both provided in the wind disk joint 141. The water passage 131 penetrates through the refrigerant joint 142 and extends into the air plate joint 141, the first medium is domestic water, and the second medium is air plate heating water.

When the partition member is the inner pipe, as shown in fig. 4, the inner pipe penetrates the refrigerant joint 142 and extends into the air panel joint 141, one end of the water passage 131 is communicated with the water passage introduction passage 1411, and the other end of the water passage 131 is communicated with the water passage discharge passage 1412, so that the air panel heating water flows therethrough. The refrigerant passage 121 formed between the inner tube and the heat exchange tube 12 is directly communicated with the refrigerant introduction passage 1421 and the refrigerant discharge passage 1422. That is, the heat exchange tube 12 only extends into the refrigerant joint 142.

Specifically, when the heat exchange tube 12 and the inner tube are both U-shaped tubes, as shown in fig. 1, 3 and 4, two ends of the heat exchange tube 12 are inserted into the refrigerant connector 142, and two ends of the inner tube are inserted into the air coil connector 141 through the refrigerant connector 142. One end of the water passage 131 is connected to the water inlet passage 1411, the other end of the water passage 131 is connected to the water outlet passage 1412, the refrigerant inlet passage 1421 is connected to the inlet of the refrigerant passage 121, and the outlet of the refrigerant passage 121 is connected to the refrigerant outlet passage 1422.

Further, in one embodiment, as shown in FIG. 1, the connector assembly 14 may be removably connected to the reservoir housing 11. And when the joint assembly 14 is mounted on the liquid storage shell 11, the joint assembly is in sealing connection with the liquid storage shell 11. Specifically, when the joint assembly 14 includes the air plate joint 141 and the refrigerant joint 142, the air plate joint 141 is connected to the refrigerant joint 142, and the refrigerant joint 142 is detachably connected to the liquid storage housing 11. In the installation process, the inner tube and the heat exchange tube 12 may be installed on the joint assembly 14, such that one end of the water passage 131 is communicated with the water inlet passage 1411, the other end of the water passage 131 is communicated with the water outlet passage 1412, the refrigerant inlet passage 1421 is communicated with the inlet of the refrigerant passage 121, and the outlet of the refrigerant passage 121 is communicated with the refrigerant outlet passage 1422. The assembled joint assembly 14 is then mounted to the opening of the reservoir housing 11 while the heat exchange tube 12 is inserted into the reservoir chamber 111.

Further, in one embodiment, as shown in fig. 1, the liquid storage housing 11 is provided with a water inlet 112 and a water outlet 113 for the first medium to enter and exit. Specifically, when the first medium is domestic water, cold water enters the liquid storage cavity 111 from the water inlet 112 to exchange heat with the refrigerant; the hot water after heat exchange flows from the water outlet 113 to the user end for use.

The specific positions of the water inlet 112 and the water outlet 113 can be adjusted according to actual conditions.

Further, as shown in fig. 1, a drain outlet 114 is further disposed on the liquid storage housing 11, after a period of use, the liquid storage housing 11 can be cleaned, and sewage flows out from the drain outlet 114.

Further, in another embodiment, a integrated air conditioning system 20 for hot water heating is provided, which comprises the heat exchange device 10.

By arranging the heat exchange equipment 10, when the refrigerant passes through the refrigerant passage 121, the heating process of domestic water and air disc heating water can be simultaneously realized, the heat exchange efficiency is high, the conversion rate is close to 100%, and the operation energy efficiency of the whole machine is high. The two heat exchange processes can be completed in the liquid storage shell 11, so that a complex pipeline is not required to be arranged in the hot water heating integrated air conditioning system 20, and the whole system structure is simple.

Specifically, as shown in fig. 5, in one embodiment, the integrated hvac system 20 further includes an external unit system 21, a hot water system 22, and a damper system 23. The outdoor unit system 21 is communicated with the refrigerant passage 121 to form a refrigerant circulation loop, and the outdoor unit system 21 inputs a high-temperature and high-pressure refrigerant into the refrigerant passage 121. The hot water system 22 is communicated with the liquid storage cavity 111 to form a domestic water circulation loop, and hot water obtained by heat exchange in the liquid storage cavity 111 is input into the hot water system 22. The air panel system 23 is communicated with the water passage 131 to form a heating water circulation circuit for feeding hot water for air panel heating obtained by heat exchange in the water passage 131 into the air panel system 23.

Therefore, the heat requirements of the hot water system 22 and the air disc system 23 are simultaneously completed in the heat exchange device 10, the pipeline arrangement is reduced, and the overall layout of the system is simple.

Specifically, when the heat exchange device 10 includes the joint assembly 14, the refrigerant output end of the outdoor unit system 21 is communicated with the refrigerant inlet passage 1421, and the refrigerant outlet passage 1422 is communicated with the refrigerant input end of the outdoor unit system 21. That is, the high-temperature refrigerant formed by the outdoor unit system 21 reaches the refrigerant introducing passage 1421 and then reaches the refrigerant passage 121, and the heat-exchanged refrigerant flows back to the outdoor unit system 21 from the refrigerant guiding passage 1422.

Similarly, the input port of the wind disk system 23 is communicated with the water outlet channel 1412, and the output port of the wind disk system 23 is communicated with the water outlet channel 1412. That is, the heat-exchanged air-disk heating water is introduced into the air-disk system 23 after passing through the water outlet channel 1412.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (13)

1. The heat exchange equipment is characterized by comprising a liquid storage shell, wherein a liquid storage cavity is enclosed by the liquid storage shell, a heat exchange tube is arranged in the liquid storage cavity, a partition heat exchange piece is arranged in the heat exchange tube, the partition heat exchange piece divides a cavity in the heat exchange tube into a refrigerant passage and a water passage, a refrigerant in the refrigerant passage can exchange heat with a first medium in the liquid storage cavity through the heat exchange tube, and the refrigerant in the refrigerant passage can exchange heat with a second medium in the water passage through the partition heat exchange piece.

2. The heat exchange device of claim 1, wherein the heat dividing and exchanging member is an inner tube inserted into the heat exchange tube, the inner tube and the heat exchange tube are arranged at intervals to form the refrigerant passage, and the inner tube surrounds the water passing passage.

3. The heat exchange device of claim 2, wherein the inner tube is disposed coaxially with the heat exchange tube to form a coaxial sleeve.

4. The heat exchange device of claim 3, wherein the heat exchange tube is a U-shaped tube, and the inner tube is a U-shaped tube coaxially arranged in the heat exchange tube.

5. The heat exchange device according to any one of claims 1 to 4, further comprising a joint assembly, wherein the joint assembly is provided with a refrigerant introducing passage, a refrigerant leading-out passage, a water-passing introducing passage and a water-passing leading-out passage, the refrigerant introducing passage is communicated with an inlet of the refrigerant passage, an outlet of the refrigerant passage is communicated with the refrigerant leading-out passage, the water-passing introducing passage is communicated with an inlet of the water-passing passage, and an outlet of the water-passing passage is communicated with the water-passing leading-out passage.

6. The heat exchange device according to claim 5, wherein the heat exchange tube is provided in plurality, the refrigerant passage in each heat exchange tube is communicated with the refrigerant introducing passage and the refrigerant discharging passage, and the water passing passage in each heat exchange tube is communicated with the water passing introducing passage and the water passing discharging passage.

7. The heat exchange device as claimed in claim 6, wherein the lengths of the water paths in the heat exchange tubes are different, the on-off of each water path is adjustable, and/or the on-off of each refrigerant path is adjustable.

8. The heat exchange device as claimed in claim 5, wherein a refrigerant pipe is further disposed in the liquid storage cavity, an inlet of the refrigerant pipe is communicated with the refrigerant introducing passage, an outlet of the refrigerant pipe is communicated with the refrigerant guiding passage, and the refrigerant in the refrigerant pipe can exchange heat with the first medium through the refrigerant pipe.

9. The heat exchange device of claim 8, wherein the refrigerant tube is on-off adjustable.

10. The heat exchange device of claim 5, wherein the joint assembly comprises an air disc joint and a refrigerant joint, the refrigerant joint is located between the air disc joint and the liquid storage cavity, the refrigerant leading-in passage and the refrigerant leading-out passage are both arranged in the refrigerant joint, the water-running leading-in passage and the water-running leading-out passage are both arranged in the air disc joint, the water-running passage penetrates through the refrigerant joint and extends into the air disc joint, the first medium is domestic water, and the second medium is air disc heating water.

11. The heat exchange device of any one of claims 1 to 4, wherein the liquid storage shell is provided with a water inlet and a water outlet.

12. A combined hydronic and heating air conditioning system comprising the heat exchange device of any one of claims 1 to 11.

13. The integrated hot-water heating and air-conditioning system according to claim 12, further comprising an external unit system, a hot-water system and an air disc system, wherein the external unit system is communicated with the refrigerant passage to form a refrigerant circulation loop, the hot-water system is communicated with the liquid storage cavity to form a domestic water circulation loop, and the air disc system is communicated with the water outlet passage to form an air disc heating water circulation loop.

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