Heat exchange device and air conditioning system

Abstract

The application discloses a heat exchange device and an air conditioning system with the heat exchange device, wherein the heat exchange device comprises a water tank, a hydraulic module, and a second heat exchanger; the water tank comprises a tank shell and an inner container; the tank shell is provided with a mounting seat; the hydraulic module is mounted on the mounting seat; the hydraulic module is provided with a refrigerant liquid pipe interface, a refrigerant gas pipe interface, a first water inlet, a first water outlet, a first heat exchange flow path, and a second heat exchange flow path; two ends of the first heat exchange flow path are connected with the refrigerant liquid pipe interface and the refrigerant gas pipe interface respectively; two ends of the second heat exchange flow path are connected with the first water inlet and the first water outlet respectively; the second heat exchanger is arranged in the tank shell and used for heat exchange of the inner container; two ends of the second heat exchanger are connected with the refrigerant liquid pipe interface and the refrigerant gas pipe interface respectively; the first heat exchange flow path and the refrigerant liquid pipe interface are connected with a second throttling element; and the second heat exchanger and the refrigerant liquid pipe interface are connected with a first throttling element. The application has the advantages of stable installation, small floor area, and low equipment cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioning, in particular to a heat exchange device and an air conditioning system. BACKGROUND

[0002] In the prior art, part of the household air conditioning system contains a set of heating system and a set of domestic hot water system, the heating system is used for heating, and the domestic hot water system is used for supplying hot water, the heating system comprises a water module and an outdoor unit, and the domestic hot water system comprises a water tank and the outdoor unit. The water module is installed in a wall-mounted manner, and the water tank is installed in a floor-mounted manner, so that more space is occupied, the installation cost is high, and the user's purchase of two sets of system equipment is also relatively high. SUMMARY

[0003] The present application aims to at least solve one of the technical problems in the prior art. To this end, the present application provides a heat exchange device, which has a small floor area, low equipment cost and simple installation.

[0004] The present application also provides an air conditioning system with the heat exchange device.

[0005] The heat exchange device according to the first aspect of the present application comprises: a water tank comprising a tank shell and an inner container, the tank shell being provided with a mounting seat; a water module mounted on the mounting seat, the water module being provided with a refrigerant liquid pipe interface, a refrigerant gas pipe interface, a first heat exchanger, a first water inlet and a first water outlet, the first heat exchanger being provided with a first heat exchange flow path and a second heat exchange flow path, two ends of the first heat exchange flow path being connected with the refrigerant liquid pipe interface and the refrigerant gas pipe interface respectively, two ends of the second heat exchange flow path being connected with the first water inlet and the first water outlet respectively; and a second heat exchanger arranged in the tank shell and used for heat exchange for the inner container, two ends of the second heat exchanger being connected with the refrigerant liquid pipe interface and the refrigerant gas pipe interface respectively; wherein a first throttling element is connected between the second heat exchanger and the refrigerant liquid pipe interface, and a second throttling element is connected between the first heat exchange flow path and the refrigerant liquid pipe interface.

[0006] The heat exchange device according to the present application has at least the following beneficial effects: the water module is used for the heating system, the water tank is used for the domestic hot water system, the mounting seat is arranged on the water tank, the water module is mounted on the mounting seat, the structure layout of the upper heating and the lower water tank is realized, the installation is stable, the floor area is small, the heating system and the domestic hot water system share one air conditioning outdoor unit, the equipment cost is low, and the installation is simple.

[0007] According to some embodiments of the present application, the mounting seat is provided with a water receiving portion.

[0008] According to some embodiments of the present application, the first throttling element and the second throttling element are at least one of an electronic expansion valve, a thermal expansion valve, and a capillary tube.

[0009] According to some embodiments of the present application, a water pump is connected between the second heat exchange flow path and the first water inlet.

[0010] According to some embodiments of the present application, an electric heating tank is connected between the second heat exchange flow path and the first water outlet.

[0011] According to some embodiments of the present application, an expansion tank is connected between the second heat exchange flow path and the electric heating tank.

[0012] According to some embodiments of the present application, filters are connected to both ends of the first throttling element and / or the second throttling element.

[0013] According to some embodiments of the present application, the second heat exchanger is configured to surround the outer periphery of the inner container or is disposed inside the inner container.

[0014] According to some embodiments of the present application, an electric heating device is disposed in the water tank.

[0015] According to some embodiments of the present application, a blind pipe for placing a temperature sensor is disposed in the water tank.

[0016] The air conditioning system according to the second aspect of the embodiments of the present application, comprising the heat exchange device as described above, and an air conditioning outdoor unit connected with the refrigerant liquid pipe interface and the refrigerant gas pipe interface.

[0017] The air conditioning system according to the embodiments of the present application has at least the following beneficial effects: the hydraulic module is used for a heating system, the water tank is used for a domestic hot water system, the hydraulic module is mounted on the mounting seat provided on the water tank to realize the structural layout of the upper heating and the lower water tank, the installation is stable, the land occupation is small, the heating system and the domestic hot water system share one air conditioning outdoor unit, the equipment cost is low, and the installation is simple.

[0018] Additional aspects and advantages of the present application will be made apparent from the following description, which, taken in conjunction with the accompanying drawings, that will be part hereof. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily understood from the following description, taken in conjunction with the accompanying drawings, in which:

[0020] Figure 1 A schematic view of the heat exchange device according to an embodiment of the present application;

[0021] Figure 2 A schematic diagram of a heat exchange device according to another embodiment of the present application;

[0022] Figure 3 A schematic diagram of a heat exchange device according to another embodiment of the present application; Figure 2 A schematic diagram of a heat exchange device according to another embodiment of the present application;

[0023] Figure 4 A schematic diagram of a heat exchange device according to another embodiment of the present application; Figure 2 A schematic diagram of a heat exchange device according to another embodiment of the present application;

[0024] Figure 5 A schematic diagram of a heat exchange device according to another embodiment of the present application; Figure 2 A schematic diagram of a heat exchange device according to another embodiment of the present application;

[0025] Figure 6 A schematic diagram of a heat exchange device according to another embodiment of the present application; Figure 2 A schematic diagram of a heat exchange device according to another embodiment of the present application.

[0026] Reference signs:

[0027] Water tank 101; hydraulic module 102; second heat exchanger 103; tank shell 104; inner container 105; mounting seat 106; refrigerant liquid pipe interface 107; refrigerant gas pipe interface 108; drain port 109; first heat exchanger 110; electric heating tank 111; water pump 112; first water inlet 113; first water outlet 114; first heat exchange flow path 115; second heat exchange flow path 116; expansion tank 117; water flow switch 118; water pressure gauge 119; first throttling element 120; second throttling element 121; filter 122; electric heating device 123; blind pipe 124; second water inlet 125; second water outlet 126; blowdown port 127. DETAILED DESCRIPTION

[0028] Embodiments of the present application are described in detail below with reference to the accompanying drawings, in which examples of the embodiments are shown, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0029] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0030] In the description of the present application, the meaning of one or more is one or more, the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If the first, second is described for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0031] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be broadly understood, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical solution.

[0032] Referring to Figure 1 As shown in the figure, the heat exchange device according to an embodiment of the present application comprises a water tank 101, a water power module 102 and a second heat exchanger 103, wherein the water tank 101 comprises a tank shell 104 and an inner container 105, and the tank shell 104 is provided with a mounting seat 106; the water power module 102 is mounted on the mounting seat 106, and the water power module 102 is provided with a refrigerant liquid pipe interface 107 and a refrigerant gas pipe interface 108; the second heat exchanger 103 is arranged in the tank shell 104 and used for heat exchange with the inner container 105, and the two ends of the second heat exchanger 103 are respectively connected with the refrigerant liquid pipe interface 107 and the refrigerant gas pipe interface 108. In the existing system, the water power module 102 is installed by hanging on the wall, and the water tank 101 is installed by falling to the ground, that is, two different places need to be installed, the installation cost is high, and the cost of two sets of equipment is also high. The heat exchange device of the present application, the water power module 102 is used for a heating system, and the water tank 101 is used for a domestic hot water system. By providing the mounting seat 106 on the water tank 101, the water power module 102 is mounted on the mounting seat 106, realizing the structure layout of heating on the top and water tank 101 on the bottom, stable installation, small floor area, sharing one air conditioner outdoor unit for the heating system and the domestic hot water system, low equipment cost and simple installation.

[0033] In some embodiments, in order to prevent water from falling from the water power module 102 to the floor, a water receiving part is arranged on the mounting seat 106, which collects water falling from the water power module 102, keeping the floor clean and tidy. In order to facilitate the discharge of the collected water, a drain port 109 is arranged on the mounting seat 106 in some embodiments.

[0034] In some embodiments, the hydraulic module 102 is further provided with a first heat exchanger 110, an electric heating tank 111, a water pump 112, a first water inlet 113 and a first water outlet 114, and the refrigerant liquid pipe interface 107 and the refrigerant gas pipe interface 108 are used to connect the refrigerant of the air conditioner outdoor unit. The first heat exchanger 110 is provided with a first heat exchange flow path 115 and a second heat exchange flow path 116. The first heat exchange flow path 115 is connected with the refrigerant liquid pipe interface 107 and the refrigerant gas pipe interface 108 respectively. The second heat exchange flow path 116 is connected with the electric heating tank 111 and the water pump 112 respectively. The water pump 112 is connected with the first water inlet 113. The electric heating tank 111 is connected with the first water outlet 114. The first heat exchange flow path 115 is a refrigerant flow path. The second heat exchange flow path 116 is a water flow path. The water in the water flow path and the refrigerant in the refrigerant flow path exchange heat. The heating return water passes through the first water inlet 113, flows through the water pump 112, enters the first heat exchanger 110 for heating, flows through the electric heating tank 111, and is supplied to the heating system through the first water outlet 114. When the water temperature of the water flowing out of the first heat exchanger 110 does not meet the requirements, the electric heating tank 111 can be used to heat the water, so as to ensure that the water temperature of the water flowing out of the electric heating tank 111 is sufficient to meet the water temperature requirements of the hydraulic module 102 in application.

[0035] In some embodiments, an expansion tank 117 is connected between the second heat exchange flow path 116 and the electric heating tank 111. The expansion tank 117 is connected with the water system through a joint and is used to buffer the pressure fluctuation of the water system. Since the second heat exchange flow path 116 is a water flow path, the thermal expansion and contraction characteristics of water are more obvious. During the heat exchange process, the pressure of the water system changes with the water temperature. When the pressure of the water system is too high, the water enters the expansion tank 117 through the joint to reduce the pressure of the water system and protect the various components of the water system from being damaged due to the high pressure. In some embodiments, a pressure relief valve is further connected between the second heat exchange flow path 116 and the electric heating tank 111, which further protects the various components of the water system from being damaged due to the high pressure.

[0036] In some embodiments, in order to enhance the control of the water system, a water flow switch 118 and a water pressure gauge 119 are further connected between the water pump 112 and the first water inlet 113.

[0037] Referring to Figure 1 As shown in FIG. 1, a first throttling element 120 is connected between the second heat exchanger 103 and the refrigerant liquid pipe interface 107. A second throttling element 121 is connected between the first heat exchange flow path 115 and the refrigerant liquid pipe interface 107. The flow direction of the refrigerant is controlled through the first throttling element 120 and the second throttling element 121, which is used to realize the functions of refrigeration, heating and heating of the water tank 101 of the hydraulic module 102, and meet the multiple needs of users.

[0038] It should be noted that the first throttling element 120 and the second throttling element 121 can be one of an electronic expansion valve, a thermal expansion valve, and a capillary tube, or any combination of two of the electronic expansion valve, the thermal expansion valve, and the capillary tube, or a combination of all of the electronic expansion valve, the thermal expansion valve, and the capillary tube.

[0039] In some embodiments, in order to filter out impurities in the refrigerant flowing into the first throttling element 120 and the second throttling element 121 to prevent the first throttling element 120 and the second throttling element 121 from being blocked, a filter 122 is connected to both ends of the first throttling element 120 and the second throttling element 121. It can be understood that in some embodiments, the filter 122 can also be connected to only one end of the first throttling element 120 and the second throttling element 121.

[0040] In some embodiments, an electric heating device 123 is arranged in the water tank 101. When the water temperature of the water in the water tank 101 does not meet the requirement, the electric heating device 123 can be used to heat the water to ensure that the water flowing out of the water tank 101 has a water temperature sufficient to meet the water temperature requirement.

[0041] In some embodiments, in order to facilitate detection of the water temperature, a blind pipe 124 for placing a temperature sensor is arranged in the water tank 101.

[0042] In some embodiments, in order to improve the heat preservation effect, a heat preservation layer is arranged on the tank shell 104 of the water tank 101.

[0043] The water tank 101 is provided with a second water inlet 125 and a second water outlet 126. The water source is connected to the second water outlet 126 to replenish the water tank 101 with water, and when the user uses water, hot water flows out through the second water outlet 126. In some embodiments, in order to facilitate cleaning of impurities in the water tank 101, a sewage outlet 127 is arranged at the bottom of the water tank 101.

[0044] Referring to Figure 1 In some embodiments, the second heat exchanger 103 surrounds the outer periphery of the inner container 105. The second heat exchanger 103 heats the water through the inner container 105. Since the second heat exchanger 103 does not directly contact the water in the inner container 105, the corrosion resistance is better.

[0045] Referring to Figure 2 In some embodiments, the second heat exchanger 103 is arranged inside the inner container 105 to heat the water. Since the second heat exchanger 103 directly exchanges heat with the water in the inner container 105, the heat exchange efficiency is higher.

[0046] It can be understood that, in order to facilitate automatic control, in some embodiments, a control unit is further arranged in the hydraulic module 102, and the control unit is used to control the electric elements such as the first throttling element 120 and the second throttling element 121; in order to facilitate user operation, in some embodiments, a display operation unit is further arranged in the hydraulic module 102.

[0047] The working mode of the heat exchange device in an embodiment of the present application will be described below with reference to Figures 3 to 6

[0048] With reference to Figure 3 , in some embodiments, the heat exchange device is in a heating operation mode and the water tank 101 is in standby mode, the first throttling element 120 is closed, the second throttling element 121 is opened, the high-pressure and high-temperature refrigerant provided by the air conditioner outdoor unit through the connecting pipe enters the refrigerant gas pipe interface 108, flows through the first heat exchange flow path 115 of the first heat exchanger 110, and then flows back to the refrigerant liquid pipe interface 107 through the second throttling element 121, and flows back to the air conditioner outdoor unit through the connecting pipe; the heating return water passes through the first water inlet 113, flows through the water pump 112, enters the second heat exchange flow path 116 of the first heat exchanger 110 for heating, flows through the electric heating tank 111, and is supplied to the heating system through the first water outlet 114. It should be noted that the first throttling element 120 can also be in a micro-flow state, i.e., the first throttling element 120 can have a small opening to prevent refrigerant accumulation.

[0049] With reference to Figure 4 , in some embodiments, the heat exchange device is in a water tank 101 heating mode and the heating system is in standby mode, the first throttling element 120 is opened, the second throttling element 121 is closed, the high-pressure and high-temperature refrigerant provided by the air conditioner outdoor unit through the connecting pipe enters the refrigerant gas pipe interface 108, flows through the second heat exchanger 103, and flows back to the air conditioner outdoor unit through the refrigerant liquid pipe interface 107. The water in the water tank 101 absorbs the heat of the second heat exchanger 103, and when the user uses water, hot water flows out through the second water outlet 126, and the second water inlet 125 is connected to the water source for water replenishment. It should be noted that the second throttling element 121 can also be in a micro-flow state, i.e., the second throttling element 121 can have a small opening to prevent refrigerant accumulation.

[0050] With reference to Figure 5 ​As shown, in some embodiments, when the heat exchange device is in the mode of simultaneous heating operation of the water tank 101 and the water force module 102, the first throttling element 120 and the second throttling element 121 are both opened, the high-pressure and high-temperature refrigerant provided by the connecting pipe enters the refrigerant gas pipe interface 108, one-way refrigerant flows through the first heat exchange flow path 115 of the first heat exchanger 110, then flows back to the refrigerant liquid pipe interface 107 through the second throttling element 121, flows back to the air conditioner outdoor unit through the connecting pipe, the heating return water passes through the first water inlet 113, flows through the water pump 112, enters the second heat exchange flow path 116 of the first heat exchanger 110 for heating, flows through the electric heating tank 111, and is supplied to the heating system through the first water outlet 114. The other way of refrigerant flows through the second heat exchanger 103, passes through the first throttling element 120, and flows back to the air conditioner outdoor unit through the refrigerant liquid pipe interface 107. That is, the first throttling element 120 and the second throttling element 121 are controlled to normally operate, and the water tank 101 and the water force module 102 simultaneously exchange heat.

[0051] Referring to Figure 6 As shown, in some embodiments, when the heat exchange device is in the mode of refrigeration operation and the water tank 101 is on standby, the first throttling element 120 is closed, and the second throttling element 121 is opened. The refrigerant of the air conditioner outdoor unit flows through the refrigerant liquid pipe interface 107, flows through the second throttling element 121, the first heat exchange flow path 115 of the first heat exchanger 110 evaporates and absorbs heat, flows back to the air conditioner outdoor unit through the refrigerant gas pipe interface 108, and the first throttling element 120 is in a closed state without refrigerant flowing through it. The refrigeration return water passes through the first water inlet 113, flows through the water pump 112, enters the second heat exchange flow path 116 of the first heat exchanger 110 for cooling, flows through the electric heating tank 111, and is supplied to the refrigeration terminal through the first water outlet 114.

[0052] According to the air conditioning system of the second aspect of the embodiment of the present application, the heat exchange device of any one of the above embodiments and the air conditioner outdoor unit are included, and the air conditioner outdoor unit is connected with the refrigerant liquid pipe interface 107 and the refrigerant gas pipe interface 108. The air conditioning system adopts all the technical solutions of the heat exchange device in the above embodiments, and has all the beneficial effects generated by the heat exchange device thereof. The air conditioning system also has the same advantages, which will not be repeated here.

[0053] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present application.

Claims

1. A heat exchange device, characterized in that: include: The water tank comprises a tank shell and an inner tank, wherein the tank shell is provided with a mounting seat; The hydraulic module is installed on the mounting seat, and the hydraulic module is provided with a refrigerant liquid pipe interface, a refrigerant gas pipe interface, a first heat exchanger, a first water inlet and a first water outlet, the refrigerant liquid pipe interface and the refrigerant gas pipe interface are arranged on the hydraulic module for connecting to the air-conditioning outdoor unit, and the first water inlet and the first water outlet are used to connect to the heating system; the first heat exchanger is provided with a first heat exchange flow path and a second heat exchange flow path, the two ends of the first heat exchange flow path are respectively connected to the refrigerant liquid pipe interface and the refrigerant gas pipe interface, the two ends of the second heat exchange flow path are respectively connected to the first water inlet and the first water outlet, an electric heating tank is connected between the second heat exchange flow path and the first water outlet, and an expansion tank is connected between the second heat exchange flow path and the electric heating tank; when the heat exchange device is in a heating operation mode, the high-pressure and high-temperature refrigerant provided by the air-conditioning outdoor unit through the connecting pipe enters the first heat exchange flow path, and the heating return water enters the second heat exchange flow path through the first water inlet for heating; A second heat exchanger is provided in the box shell and is used to exchange heat with the inner tank. Two ends of the second heat exchanger are respectively connected to the refrigerant liquid pipe interface and the refrigerant gas pipe interface; Wherein, a first throttling element is connected between the second heat exchanger and the refrigerant liquid pipe interface, and a second throttling element is connected between the first heat exchange flow path and the refrigerant liquid pipe interface.

2. The heat exchange device according to claim 1, characterized in that: The mounting seat is provided with a water receiving portion.

3. The heat exchange device according to claim 1, characterized in that The first throttling element and the second throttling element are at least one of an electronic expansion valve, a thermal expansion valve, and a capillary tube.

4. The heat exchange device according to claim 1, characterized in that A water pump is connected between the second heat exchange flow path and the first water inlet.

5. The heat exchange device according to claim 1, characterized in that: Both ends of the first throttling element and / or the second throttling element are connected to filters.

6. The heat exchange device according to claim 1, characterized in that: The second heat exchanger is configured to surround the outer periphery of the inner tank or the second heat exchanger is arranged inside the inner tank.

7. The heat exchange device according to claim 1, characterized in that: An electric heating device is provided in the water tank.

8. The heat exchange device according to claim 1, characterized in that: A blind pipe for placing a temperature sensor is provided in the water tank.

9. Air conditioning system, characterized in that include: The heat exchange device according to any one of claims 1 to 8; An air-conditioning outdoor unit is connected to the refrigerant liquid pipe interface and the refrigerant gas pipe interface.

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