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, and 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, and the tank shell is provided with a mounting seat. The hydraulic module is mounted on the mounting seat and is provided with a first refrigerant liquid pipe interface, a first refrigerant gas pipe interface, a second refrigerant liquid pipe interface, a second refrigerant gas pipe interface, a first heat exchanger, a first water inlet and a first water outlet. 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 connected with the second refrigerant liquid pipe interface and the second refrigerant gas pipe interface respectively. The 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 is used for heat exchange of the inner container. The two ends of the second heat exchanger are connected with the first refrigerant liquid pipe interface and the first refrigerant gas pipe interface respectively. The application has the advantages of stable installation, small floor area and low equipment cost.

Description

Technical Field

[0001] This invention relates to the field of air conditioning technology, and particularly to heat exchange devices and air conditioning systems. Background Technology

[0002] In existing technologies, some household air conditioning systems include a heating system and a domestic hot water system. The heating system provides warmth, and the domestic hot water system supplies hot water. The heating system includes a hydraulic module and an outdoor unit, while the domestic hot water system includes a water tank and an outdoor unit. The hydraulic module is wall-mounted, and the water tank is floor-mounted, which takes up a lot of space and has high installation costs. The cost for users to purchase two sets of system equipment is also relatively high. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a heat exchange device that has a small footprint, low equipment cost, and simple installation.

[0004] The present invention also proposes an air conditioning system having the above-mentioned heat exchange device.

[0005] According to a first aspect of the present invention, a heat exchange device includes: a water tank, comprising a tank shell and an inner liner, wherein a mounting base is provided on the tank shell; a hydraulic module, mounted on the mounting base, the hydraulic module being provided with a first refrigerant liquid pipe interface, a first refrigerant gas pipe interface, a second refrigerant liquid pipe interface, a second 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, the two ends of the first heat exchange flow path being respectively connected to the second refrigerant liquid pipe interface and the second refrigerant gas pipe interface, and the two ends of the second heat exchange flow path being respectively connected to the first water inlet and the first water outlet; and a second heat exchanger, disposed inside the tank shell, for heat exchange to the inner liner, the two ends of the second heat exchanger being respectively connected to the first refrigerant liquid pipe interface and the first refrigerant gas pipe interface.

[0006] The heat exchange device according to the embodiments of the present invention has at least the following beneficial effects: it is connected to the outdoor unit of the air conditioner through four refrigerant pipes, the hydraulic module is used for the heating system, and the water tank is used for the domestic hot water system. By setting a mounting base on the water tank, the hydraulic module is installed on the mounting base, realizing the structural layout of upper heating and lower water tank. The installation is stable, the footprint is small, the equipment cost is low, and the installation is simple.

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

[0008] According to some embodiments of the present invention, the shell is provided with a heat insulation layer.

[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, the second heat exchanger is configured to surround the outer periphery of the inner container or is disposed inside the inner container.

[0013] According to some embodiments of the present application, an electric heating device is disposed in the water tank.

[0014] According to some embodiments of the present application, a blind pipe for placing a temperature sensor is disposed in the water tank.

[0015] The air conditioning system according to the second aspect of the embodiments of the present application, comprising: the heat exchange device as described above; a first air conditioning outdoor unit, the first air conditioning outdoor unit being connected with the first refrigerant liquid pipe interface and the first refrigerant gas pipe interface; a second air conditioning outdoor unit, the second air conditioning outdoor unit being connected with the second refrigerant liquid pipe interface and the second refrigerant gas pipe interface.

[0016] The air conditioning system according to the embodiments of the present application has at least the following beneficial effects: the heat exchange device is connected with the first air conditioning outdoor unit and the second air conditioning outdoor unit through four refrigerant pipes, the hydraulic module is used for a heating system, the water tank is used for a domestic hot water system, the hydraulic module is installed on the mounting seat provided on the water tank, the structure layout of the upper heating and the lower water tank is realized, the installation is stable, the land occupation is small, the equipment cost is low, and the installation is simple.

[0017] Additional aspects and advantages of the present application will be made apparent by the following description and the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] 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:

[0019] Figure 1 A schematic view of a heat exchange device according to an embodiment of the present application;

[0020] Figure 2 A schematic view of a heat exchange device according to another embodiment of the present application;

[0021] Figure 3 A schematic view of a heat exchange device according to another embodiment of the present application; Figure 2The heat exchange device in the heating operation, water tank standby mode is shown in the refrigerant flow direction schematic diagram.

[0022] Figure 4 For Figure 2 The heat exchange device in the water tank heating, heating standby mode is shown in the refrigerant flow direction schematic diagram.

[0023] Figure 5 For Figure 2 The heat exchange device in the heating and water tank heating operation mode is shown in the refrigerant flow direction schematic diagram.

[0024] Figure 6 For Figure 2 The heat exchange device in the refrigeration operation, water tank standby mode is shown in the refrigerant flow direction schematic diagram.

[0025] Reference signs:

[0026] Water tank 101; hydraulic module 102; second heat exchanger 103; tank shell 104; inner container 105; mounting seat 106; first refrigerant liquid pipe interface 107; first refrigerant gas pipe interface 108; drain 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; second refrigerant liquid pipe interface 120; second refrigerant gas pipe interface 121; electric heating device 122; blind pipe 123; second water inlet 124; second water outlet 125; blowdown 126. DETAILED DESCRIPTION

[0027] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, 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 by referring to the accompanying drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0028] 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, only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation of the present application.

[0029] In the description of the present application, the meaning of one or more is one or more, the meaning of multiple is more than two, 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 it is described that the first, second is only used for the purpose of distinguishing technical features, and 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.

[0030] In the description of the present application, unless otherwise explicitly limited, the words such as setting, mounting, connecting, etc. should be understood in a broad sense, 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 scheme.

[0031] 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 hydraulic 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 hydraulic module 102 is mounted on the mounting seat 106, and the hydraulic module 102 is provided with a first refrigerant liquid pipe interface 107, a first refrigerant gas pipe interface 108, a second refrigerant liquid pipe interface 120 and a second refrigerant gas pipe interface 121 for connecting the refrigerant of the air conditioner outdoor unit; 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 connected with the first refrigerant liquid pipe interface 107 and the first refrigerant gas pipe interface 108 respectively. In the existing system, the hydraulic module 102 is installed by wall-hanging type, and the water tank 101 is installed by floor type, 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. While the heat exchange device of the present application, the hydraulic module 102 is used for the heating system, and the water tank 101 is used for the domestic hot water system, the mounting seat 106 is arranged on the water tank 101, and the hydraulic module 102 is mounted on the mounting seat 106, so as to realize the structural layout of heating on the top and water tank 101 on the bottom, the installation is stable, the land occupation is small, the heating system and the domestic hot water system share one air conditioner outdoor unit, the equipment cost is low, and the installation is simple.

[0032] It should be noted that in the field of air conditioning technology, a set of high and low pressure stop valves are generally used as an interface, and the air conditioner outdoor unit is provided with an electronic expansion valve for controlling the on-off of the refrigerant. The electronic expansion valve is arranged before the high and low pressure stop valve. That is, the first refrigerant liquid pipe interface 107, the first refrigerant gas pipe interface 108, the second refrigerant liquid pipe interface 120 and the second refrigerant gas pipe interface 121 all have high and low pressure stop valves, and the on-off of the refrigerant and the first refrigerant liquid pipe interface 107, the first refrigerant gas pipe interface 108, the second refrigerant liquid pipe interface 120 and the second refrigerant gas pipe interface 121 can be controlled by the electronic expansion valve of the air conditioner outdoor unit.

[0033] In some embodiments, in order to prevent water droplets from falling from the upper part of the water module 102 to the floor, a water receiving part is arranged on the mounting base 106 to collect the water droplets falling from the upper part of the water module 102, keeping the floor clean and tidy. In order to facilitate the drainage of the collected water, a drain port 109 is arranged on the mounting base 106 in some embodiments.

[0034] In some embodiments, the water 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. 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 second refrigerant liquid pipe interface 120 and the second refrigerant gas pipe interface 121 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, ensuring 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 water module 102 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 to the water system through a joint, 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 water system pressure changes with the water temperature. When the water system pressure is too high, the water will enter the expansion tank 117 through the joint to reduce the water system pressure, protecting the various components of the water system from being damaged due to excessive 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, further protecting the various components of the water system from being damaged due to excessive 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] In some embodiments, an electric heating device 122 is arranged in the water tank 101. When the water temperature of the water in the water tank 101 does not meet the requirements, the electric heating device 122 can be used to heat the water, ensuring that the water temperature of the water flowing out of the water tank 101 is sufficient to meet the water temperature requirements.

[0038] In some embodiments, in order to facilitate detection of water temperature, a blind pipe 123 is arranged in the water tank 101 for placing a temperature sensor.

[0039] 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.

[0040] The water tank 101 is provided with a second water inlet 124 and a second water outlet 125. The second water outlet 125 is connected to a water source to supply water to the water tank 101. When a user uses water, hot water flows out through the second water outlet 125. In some embodiments, in order to facilitate cleaning of impurities in the water tank 101, a sewage outlet 126 is arranged at the bottom of the water tank 101.

[0041] 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.

[0042] 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.

[0043] It can be understood that, in order to facilitate automatic control, in some embodiments, the hydraulic module 102 is further provided with a control unit for controlling electrical elements such as the first throttling element and the second throttling element. In order to facilitate user operation, in some embodiments, the hydraulic module 102 is further provided with a display operation unit.

[0044] The working mode of the heat exchange device of an embodiment of the present application will be described below with reference to Figures 3 to 6

[0045] Referring 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. High-pressure and high-temperature refrigerant provided by the second air conditioner outdoor unit through the connecting pipe enters the second refrigerant gas pipe interface 121, flows through the first heat exchange flow path 115 of the first heat exchanger 110, and then flows back to the second refrigerant liquid pipe interface 120 through the connecting pipe to flow back to the second air conditioner outdoor unit. The heating return water flows 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.

[0046] Referring to Figure 4 ​As shown, in some embodiments, when the heat exchange device is in the mode of heating the water tank 101 and standby for heating, the high-pressure and high-temperature refrigerant provided by the connecting pipe enters the first refrigerant gas pipe interface 108, flows through the second heat exchanger 103, and flows back to the air conditioner outdoor unit through the first 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 125, and the second water inlet 124 is connected to the water source for water replenishment.

[0047] Referring to Figure 5 As shown, in some embodiments, when the heat exchange device is in the mode of heating the water tank 101 and standby for heating, the high-pressure and high-temperature refrigerant provided by the connecting pipe enters the first refrigerant gas pipe interface 108, flows through the second heat exchanger 103, and flows back to the air conditioner outdoor unit through the first 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 125, and the second water inlet 124 is connected to the water source for water replenishment.

[0048] Referring to Figure 6 As shown, in some embodiments, when the heat exchange device is in the mode of heating the water tank 101 and standby for heating, the high-pressure and high-temperature refrigerant provided by the connecting pipe enters the first refrigerant gas pipe interface 108, flows through the second heat exchanger 103, and flows back to the air conditioner outdoor unit through the first 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 125, and the second water inlet 124 is connected to the water source for water replenishment.

[0049] 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 first air conditioner outdoor unit and the second air conditioner outdoor unit, the first air conditioner outdoor unit is connected with the first refrigerant liquid pipe interface 107 and the first refrigerant gas pipe interface 108; the second air conditioner outdoor unit is connected with the second refrigerant liquid pipe interface 120 and the second refrigerant gas pipe interface 121. The air conditioning system adopts all the technical solutions of the heat exchange device in the above embodiments, and has all the beneficial effects of the heat exchange device, and the air conditioning system also has the same advantages, which will not be repeated here.

[0050] The above embodiments of the present application are described in detail in combination with the drawings, but the present application is not limited to the above embodiments, and various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the purpose of the present application.

Claims

1. Heat exchange device, characterized in that The heat exchange device comprises: a water tank comprising a tank shell and an inner container, wherein a mounting seat is arranged on the tank shell; a hydraulic module mounted on the mounting seat, wherein the hydraulic module is provided with a first refrigerant liquid pipe interface, a first refrigerant gas pipe interface, a second refrigerant liquid pipe interface, a second refrigerant gas pipe interface, a first heat exchanger, a first water inlet and a first water outlet, the first refrigerant liquid pipe interface, the first refrigerant gas pipe interface, the second refrigerant liquid pipe interface and the second refrigerant gas pipe interface are arranged on the hydraulic module for connecting an air conditioner outdoor unit, the first water inlet and the first water outlet are used for connecting a heating system; the first heat exchanger is provided with 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 second refrigerant liquid pipe interface and the second 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, 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, high-pressure and high-temperature refrigerant provided by a connecting pipe of the air conditioner outdoor unit enters the first heat exchange flow path, and heating return water enters the second heat exchange flow path through the first water inlet for heating; a second heat exchanger arranged in the tank shell and used for heat exchange with the inner container, two ends of the second heat exchanger are connected with the first refrigerant liquid pipe interface and the first refrigerant gas pipe interface respectively.

2. The heat exchange device according to claim 1, wherein A water receiving part is arranged on the mounting seat.

3. The heat exchange device according to claim 1, wherein A heat preservation layer is arranged on the tank shell.

4. The heat exchange device according to claim 1, wherein 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, wherein The second heat exchanger is arranged around an outer periphery of the inner container or in an inner part of the inner container.

6. The heat exchange device according to claim 1, wherein An electric heating device is arranged in the water tank.

7. The heat exchange device according to claim 1, wherein A blind pipe for placing a temperature sensor is arranged in the water tank.

8. An air conditioning system characterized by, The heat exchange device comprises: any one of claims 1 to 7; a first air conditioner outdoor unit connected with the first refrigerant liquid pipe interface and the first refrigerant gas pipe interface; a second air conditioner outdoor unit connected with the second refrigerant liquid pipe interface and the second refrigerant gas pipe interface.

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