WO2023207135A1 - Heat exchange apparatus and heat exchange system - Google Patents

Abstract

The present application relates to the technical field of heat exchange, and in particular to a heat exchange apparatus and a heat exchange system, for use in solving the technical problem of low heat exchange efficiency. The heat exchange apparatus comprises at least two heat exchange assemblies, a unidirectional on-off element, and a control valve; each heat exchange assembly comprises a flow dividing pipe, a heat exchanger, and a flow divider, the flow divider is provided with a plurality of first openings and a second opening, and the flow dividing pipe, the heat exchanger, and the plurality of first openings of the flow divider are successively connected; the control valve is connected between two adjacent heat exchange assemblies, and is respectively connected to the second openings of two adjacent flow dividers; the unidirectional on-off element is connected between two adjacent flow dividing pipes to form different heat exchange loops; and the unidirectional on-off element and the flow dividers are configured to control the communication state of the heat exchange loops, so as to enable flow paths of a refrigerant during condensation and evaporation to be different. The heat exchange system comprises the heat exchange apparatus. The present application can improve the heat exchange efficiency during condensation and evaporation.

Description

Heat exchange device and heat exchange system

This application requests the priority of the Chinese patent application submitted to the China Patent Office on April 25, 2022, with the application number 202210441753.0 and the application name "Heat exchange device and heat exchange system". The entire content of this application is incorporated by reference. incorporated in this application.

Technical field

The present application relates to the field of heat exchange technology, and in particular to a heat exchange device and a heat exchange system.

Background technique

With the continuous development of science and technology and the continuous improvement of people's living standards, air conditioners, water heaters and other electrical appliances have gradually entered more and more homes and offices.

In related technologies, air conditioners include compressors, outdoor units, throttling devices, indoor units, etc. Usually, outdoor units mostly use copper fin heat exchange devices. During cooling, the outdoor unit serves as a condenser and the indoor unit serves as an evaporator. The high-temperature and high-pressure refrigerant gas compressed by the compressor enters the condenser and condenses. The refrigerant changes from gas to liquid. The liquid refrigerant is throttled by the throttling device. The liquid refrigerant is converted into a gas-liquid mixture. The evaporator converts the gas-liquid into a gas-liquid mixture. The mixture is converted into low-temperature and low-pressure gas. The low-temperature and low-pressure refrigerant gas is then compressed by the compressor to form a high-temperature and high-pressure refrigerant gas. When heating, the principle is the same as that of cooling. At this time, the indoor unit acts as a condenser, and the outdoor unit as an evaporator.

However, air conditioners in the related art have low heat exchange efficiency.

Contents of the invention

This application provides a heat exchange device and heat exchange system, which can improve heat exchange efficiency.

In order to achieve the above objectives, the following technical solutions are implemented in the embodiments of this application:

In a first aspect, embodiments of the present application provide a heat exchange device, including: at least two heat exchange components, at least one one-way on-off element, and at least one control valve; each of the heat exchange components includes a diverter tube, a heat exchanger and a flow divider, the flow divider has a plurality of first openings at one end close to the heat exchanger, the flow divider has a second opening at an end away from the heat exchanger, the diverter tube, the heat exchanger The first openings of the flow divider are connected in sequence, and the control valve is connected between two adjacent heat exchange assemblies and is connected to the first openings of the two adjacent flow dividers respectively. Two openings are connected; the one-way switching element is connected between two adjacent shunt tubes to form different heat exchange circuits, and the one-way switching element and the shunt are configured to control each The communication state of the heat exchange circuit; when the refrigerant is converted from a gaseous state to a liquid state, the one-way on-off element is configured to close, and the control valve is configured to communicate between two adjacent heat exchange components. Flow path; when the refrigerant is converted from a gas-liquid mixture to a gaseous state, the one-way on-off element is configured to open, and the control valve is configured to close the flow between two adjacent heat exchange components. road.

As an optional implementation, when the one-way on-off element is configured to be closed, two adjacent heat exchange components are connected in series through the control valve to form the heat exchange circuit. The first heat exchange circuit in the heat exchange circuit; when the one-way switching element is configured to open, the adjacent heat exchange components are connected in parallel through the control valve in order to form a heat exchange circuit in the heat exchange circuit. Second heat exchange loop.

As an optional embodiment, at least two of the heat exchange components include a first heat exchange component and a second heat exchange component; the first heat exchange component includes a first shunt tube, a first heat exchange component, and a first heat exchange component connected in sequence. and a first diverter; the second heat exchange component includes a second diverter tube, a second heat exchanger and a second diverter connected in sequence, and the one-way on-off element is arranged near the first diverter tube. One end of the second diverter pipe; the control valve is connected to the second opening of the first diverter and the second opening of the second diverter respectively, and the control valve is also close to the first diverter pipe with the second diverter pipe. Connect one end.

As an optional implementation, the first branch pipe is a gas phase branch pipe.

As an optional implementation, the control valve includes a first connection port, a second connection port and a third connection port that can communicate with each other. The first connection port is connected to the second opening of the first diverter. The second connection port is connected to one end of the second diverter tube close to the first diverter tube, and the third connection port is connected to the second opening of the second diverter.

As an optional implementation manner, in each of the heat exchange components, the heat exchanger includes a plurality of branch branches, and the plurality of branch branches are respectively connected with each of the corresponding first branches of the flow divider. The openings are connected, wherein one branch branch is connected with one first opening of the splitter.

As an optional implementation, in each of the heat exchange components, the heat exchanger includes four branch branches; the flow divider has four first openings, and the heat exchanger passes through four The branch branches are respectively connected to the four first openings.

As an optional implementation, the one-way on-off element is a one-way valve; and/or the control valve is a three-way valve.

As an optional implementation, the heat exchange device is one of an air-conditioning outdoor unit or an air-conditioning indoor unit.

Those skilled in the art can understand that the heat exchange device provided by the embodiment of the present application includes at least two heat exchange components, at least one one-way on-off element and at least one control valve; each heat exchange component includes a diverter pipe, a heat exchanger The diverter has a plurality of first openings at one end close to the heat exchanger, and the diverter has a second opening at an end facing away from the heat exchanger. The diverter tube, the heat exchanger and the diverter have several first openings in sequence. connection, the control valve is connected between two adjacent heat exchange components and connected to the second openings of two adjacent diverters respectively; the one-way on-off element is connected between two adjacent diverters to form different The heat exchange circuit, the one-way on-off element and the diverter are configured to control the connection status of each heat exchange circuit; when the refrigerant is converted from gaseous to liquid, the one-way on-off element is configured to close, and the control valve is configured to Connect the flow path between two adjacent heat exchange components; when the refrigerant is converted from the gas-liquid mixture to the gaseous state, the one-way on-off element is configured to open, and the control valve is configured to close the flow path between the two heat exchange components. flow path. Through the above technical solution, the resistance loss of the refrigerant during the condensation and evaporation processes can be balanced, thereby achieving the purpose of improving heat exchange efficiency.

In a second aspect, embodiments of the present application provide a heat exchange system, including the heat exchange device provided in the first aspect.

The heat exchange system provided by the embodiment of the present application has the same beneficial effects as the heat exchange device provided by the first aspect, and will not be described again here.

In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions and the beneficial effects brought by the technical features of these technical solutions described above, the heat exchange device and heat exchange system provided by the embodiments of the present application have Other technical problems that can be solved, other technical features included in the technical solution, and the beneficial effects brought by these technical features will be further described in detail in the specific implementation modes.

Description of the drawings

In order to more clearly explain the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort.

Figure 1 is a schematic structural diagram of a heat exchange device provided by an embodiment of the present application;

Figure 2 is another structural schematic diagram of a heat exchange device provided by an embodiment of the present application.

Reference signs:

100-Heat exchange device;

110-Heat exchange components;

110a-first heat exchange component;

110b-Second heat exchange component;

111-shunt tube;

112-Heat exchanger;

1121-Diversion branch;

113-shunt;

1131-First opening;

1132-Second opening;

120-One-way switching element;

130-Control valve;

131-First connection port;

132-Second connection port;

133-The third connection port.

Detailed ways

In related technologies, air conditioners include compressors, outdoor units, throttling devices, indoor units, etc. Usually, outdoor units mostly use copper fin heat exchange devices. During cooling, the outdoor unit serves as a condenser and the indoor unit serves as an evaporator. The high-temperature and high-pressure refrigerant gas enters the condenser and condenses. The refrigerant changes from gaseous state to liquid state, and the resistance loss of the refrigerant is small; the liquid refrigerant is throttled by the throttling device, and the liquid refrigerant is converted into a gas-liquid mixture. The evaporator converts the gas into a gas-liquid mixture. The liquid mixture is converted into low-temperature and low-pressure gas. At this time, the volume expansion of the refrigerant is large, and the resistance loss of the refrigerant is large. During heating, the principle is the same as that during cooling. At this time, the indoor unit acts as a condenser, and the resistance loss of the refrigerant is large. Small, and the outdoor unit acts as an evaporator, causing large refrigerant resistance losses.

However, during the process of condensation and evaporation of the refrigerant, the resistance loss of the refrigerant is unbalanced, which leads to the problem of low heat transfer efficiency.

In view of the above technical problems, embodiments of the present application provide a heat exchange device and heat exchange system that can reduce the resistance loss when acting as an evaporator and increase the resistance loss when acting as a condenser, so as to balance the resistance of the refrigerant during condensation and evaporation. , thereby improving the heat exchange efficiency of evaporation and condensation.

In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments These are part of the embodiments of this application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of this application.

Embodiment 1

The heat exchange device provided in this application can be an outdoor unit or an indoor unit in an air conditioner, a water heater, and other electrical appliances. In the embodiment of this application, taking the heat exchange device as an outdoor unit of an air conditioner as an example, the specific structure of the heat exchange device is discussed. introduce.

Figure 1 is a schematic structural diagram of a heat exchange device provided by an embodiment of the present application. As shown in FIG. 1 , an embodiment of the present application provides a heat exchange device 100 , including at least two heat exchange components 110 , at least one one-way on-off element 120 and at least one control valve 130 ; the heat exchange component 110 includes a diverter pipe 111 , heat exchanger 112 and diverter 113. The diverter 113 has a plurality of first openings 1131 at one end close to the heat exchanger 112. The diverter 113 has a second opening 1132 at an end away from the heat exchanger 112. The diverter tube 111 and the diverter 113 have a second opening 1132. The heater 112 is connected to several first openings 1131 of the diverter in sequence, and the control valve 130 is connected between two adjacent heat exchange components 110 and connected to the second openings 1132 of two adjacent diverters 113 respectively; one-way The on-off element 120 is connected between two adjacent shunt tubes 111 to form different heat exchange circuits. The one-way on-off element 120 and the diverter 113 are configured to control the connection status of each heat exchange circuit; when the refrigerant is When the gas state is converted to a liquid state, the one-way switching unit is configured to be closed; when the refrigerant is converted from a gas-liquid mixture to a gas state, the one-way switching element 120 is configured to be opened.

Specifically, during cooling, the one-way switching elements 120 between two adjacent shunt tubes 111 are both in a closed state, and the control valve 130 connects the shunt tube 113 with the shunt tube 111 in the adjacent heat exchange assembly 110 and is closed. Control the flow path between the valve 130 and the second opening 1132 of the diverter 113 in the adjacent heat exchange assembly 110, so that a series structure is formed between at least two heat exchange assemblies 110 through the control valve 130, so that the high-temperature and high-pressure refrigerant The gas is heat exchanged through each heat exchange component 110 in sequence to form a liquid refrigerant to increase the resistance loss of the refrigerant; during heating, the one-way on-off elements 120 between the two adjacent shunt tubes 111 are both open. The communication loop between two adjacent heat exchange components 110 is closed by the control valve 130 so that at least two heat exchange components 110 form a parallel structure. In this way, the refrigerant of the gas-liquid mixture passes through each heat exchange component 110. The refrigerant that enters each heat exchange component 110 is diverted and heat exchanged again through the diverter 113 to reduce the volume of the refrigerant flowing in each heat exchange component 110. In this way, when the refrigerant of the gas-liquid mixture is converted into gas, It can reduce the resistance loss of the refrigerant, thereby improving the heat exchange efficiency of refrigeration and evaporation.

It should be noted that when the volumes of the shunt tubes 111 and the heat exchanger 112 in each heat exchange component 110 remain unchanged, the larger the volume of the refrigerant, the greater the resistance loss and the worse the heat exchange efficiency; the smaller the volume, The smaller the resistance loss, the better the heat transfer efficiency.

In the above scheme, at least two heat exchange components 110, one-way valves and control valves 130 are provided, and each heat exchange component 110 includes a diverter pipe 111, a heat exchanger 112 and a diverter 113 connected in sequence, wherein the heat exchanger 112 is connected to the plurality of first openings 1131 of the diverter 113, and the two diverters 113 of the two adjacent heat exchange assemblies 110 are connected through the control valve 130, and the adjacent two of the two adjacent heat exchange assemblies 110 A one-way on-off element 120 is provided between the diverter pipes 111. In this way, through the arrangement of the one-way on-off element 120, the control valve 130 and the diverter 113, the different flow paths of the refrigerant during cooling and heating can be adjusted, thereby reducing the The resistance loss when used as an evaporator is increased when used as a condenser to balance the resistance loss of the refrigerant during condensation and evaporation, thereby improving the heat exchange efficiency of evaporation and condensation.

Optionally, the splitter 113 has several first openings 1131 at one end close to the heat exchanger 112. The heat exchanger 112 includes several split branches 1121. In this way, the heat exchanger 112 can communicate with each other through the plurality of split branches 1121. The first opening 1131 is connected, and a branch branch 1121 is connected with a first opening 1131. In this way, during cooling, the one-way on-off element 120 between two adjacent branch pipes 111 is closed, and the high-temperature and high-pressure refrigerant gas The flow is separately divided through several branch branches 1121 of the heat exchanger 112, and enters the flow divider 113 through the first opening 1131 corresponding to each branch branch 1121, and then enters the phase flow through the second opening 1132 of the flow divider 113 through the control valve 130. Further heat exchange is performed in the next adjacent group of heat exchange components 110, so that a series flow path is formed between at least two heat exchange components 110, which can increase the resistance loss of the refrigerant during condensation.

When heating, the heat exchange device 100 acts as an evaporator, and the one-way switching elements 120 in the adjacent heat exchange components 110 are opened to communicate between two adjacent branch pipes 111, and at least two adjacent shunt pipes 111 are connected through the control valve 130. The heat exchange components 110 form a parallel structure. In this way, the refrigerant of the gas-liquid mixture enters the heat exchange device 100 and is diverted by each heat exchange component 110 to reduce the volume of the refrigerant. The refrigerant entering each heat exchange component 110 passes through The flow divider 113 further divides the flow, further reducing the refrigerant volume of each branch branch 1121. In this way, the refrigerant is heat exchanged to form gas through the heat exchanger 112, which can reduce the resistance loss during evaporation of the refrigerant to balance the resistance loss during evaporation and condensation. , which can improve the heat exchange efficiency during condensation and evaporation.

For example, in Figures 1 and 2, in each heat exchange assembly 110, each heat exchanger 112 includes four branch branches 1121, and correspondingly, each diverter 113 has four first openings 1131. In this way, Each heat exchanger 112 is connected to the four first openings 1131 of the corresponding flow divider 113 through four branch branches 1121 respectively.

Optionally, when the one-way switching element 120 is configured to be closed, two adjacent heat exchange components 110 are connected in series through the control valve 130 to form the first heat exchange circuit in the heat exchange circuit. It can be understood that What is important is that the first heat exchange circuit is the condensation circuit of the refrigerant during refrigeration.

When the one-way on-off element 120 is configured to open, the two adjacent heat exchange assemblies 110 are sequentially connected in parallel through the control valve 130 to form a second heat exchange circuit in the heat exchange circuit. It can be understood that the second heat exchange circuit is an evaporation circuit of the refrigerant during heating.

In an optional embodiment, as shown in Figure 1, at least two heat exchange components 110 include a first heat exchange component 110a and a second heat exchange component 110b; wherein the first heat exchange component 110a includes sequentially connected The first diverter tube, the first heat exchanger and the first diverter; the second heat exchange component 110b includes a second diverter tube, a second heat exchanger and a second diverter connected in sequence, and the one-way on-off element 120 is arranged on The first diverter pipe is close to one end of the second diverter pipe. The control valve 130 is connected to the second opening 1132 of the first diverter and the second opening 1132 of the second diverter respectively, and the control valve 130 is also connected to the second diverter pipe and is close to the second diverter pipe. Connect one end of a shunt tube.

When the heat exchange device 100 serves as a condenser during the refrigeration process, the one-way switching element 120 between the first diverter tube and the second diverter tube is closed, and the control valve 130 and the second opening 1132 of the second diverter are closed. The flow path is closed, so that the flow path between the first heat exchange component 110a and the second heat exchange component 110b forms a series flow path, that is, the high-temperature and high-pressure refrigerant gas enters the first heat exchanger through the first branch pipe for heat exchange. The heat-exchanged refrigerant enters the first diverter through several diverter branches 1121 and the corresponding first openings 1131 of the first diverter, and enters the second diverter through the second opening 1132 of the first diverter and the control valve 130 The refrigerant in the second diverter pipe continues to enter the second heat exchanger for heat exchange. The heat-exchanged refrigerant enters the second diverter through a plurality of diverter branches 1121 and flows out through the second opening 1132 of the second diverter.

When the heat exchange device 100 serves as an evaporator during the heating process, the one-way switching element 120 between the first branch pipe and the second branch pipe is opened, and the flow path between the control valve 130 and the second branch pipe is closed. The control valve 130 opens the flow path between the second opening of the second flow diverter and the second opening of the first flow diverter respectively. In this way, a parallel flow path is formed between the first heat exchange component 110a and the second heat exchange component 110b. , that is, after the refrigerant of the gas-liquid mixture enters the heat exchange device 100, part of the refrigerant of the gas-liquid mixture enters the second diverter, and is diverted through several first openings of the second diverter, and passes through the second heat exchanger. Each branch branch 1121 enters the second heat exchanger for heat exchange. The heat-exchanged refrigerant gas enters the second branch pipe. The refrigerant in the second branch pipe enters the first branch pipe through the one-way on-off element 120; while the other part of the gas enters the second branch pipe. The refrigerant of the mixture directly enters the first diverter through the control valve 130, enters each branch branch 1121 of the first heat exchanger through a plurality of first openings 1131 of the first diverter, and passes through each branch branch 1121 for the third flow. A heat exchanger performs heat exchange, and the heat-exchanged refrigerant gas enters the first diverter tube. In this way, the refrigerant is diverted multiple times, which can reduce the resistance loss of the refrigerant and thereby improve the heat exchange efficiency.

In another optional embodiment, as shown in Figure 2, at least two heat exchange components 110 may include three heat exchange components 110, and among the three heat exchange components 110, any two adjacent heat exchange components The two diverters 111 between the components 110 are connected through the one-way on-off element 120, and the two diverters 113 between any two adjacent heat exchange components 110 are connected through the control valve 130. In this way, the one-way switching element 120 and the control valve 130 can adjust the changes in the refrigerant flow path during condensation and evaporation, thereby balancing the resistance loss of the refrigerant during condensation and evaporation, thereby improving the heat exchange efficiency of condensation and evaporation.

The working principle of the heat exchange device 100 including three, four or more heat exchange assemblies 110 is the same as the working principle of the heat exchange device 100 including two heat exchanging assemblies 110 and will not be described again here.

Optionally, the first branch pipe is a gas phase branch pipe 111. It can be understood that, regardless of whether the heat exchange device 100 is a condenser or an evaporator, the state of the refrigerant entering the first branch pipe is gaseous.

Optionally, the control valve 130 includes a first connection port 131, a second connection port 132 and a third connection port 133 that can be connected or closed with each other, wherein the first connection port 131 is connected to the second opening 1132 of the first diverter. , the second connection port 132 is connected to one end of the second diverter pipe close to the first diverter pipe, and the third connection port 133 is connected to the second opening 1132 of the second diverter. When used as a condenser for condensation, the first connection port 131 and The second connection port 132 is open and the third connection port 133 is closed; when used as an evaporator to evaporate, the third connection port 133 and the first connection port 131 are open and the second connection port 132 is closed.

In some optional embodiments, the one-way switching element 120 includes, but is not limited to, a one-way valve.

Optionally, the control valve 130 includes but is not limited to a three-way valve, and may be selected as a four-way valve according to actual needs, which is not limited here.

Optionally, the heat exchange device 100 provided in the embodiment of the present application can be an outdoor unit of an air conditioner; it can also be an indoor unit of an air conditioner; or, both the outdoor unit and the indoor unit of an air conditioner adopt the heat exchange device provided by the above embodiments. The device 100 can thereby increase the resistance loss during condensation and reduce the resistance loss during evaporation, thereby achieving the purpose of balancing the resistance loss and improving the heat exchange efficiency during condensation and evaporation.

Embodiment 2

An embodiment of the present application also provides a heat exchange system, including the heat exchange device provided in the first embodiment.

The structure and working principle of the heat exchange device have been described in detail in the above embodiments and will not be described again here.

Optionally, the heat exchange system can be a heat pump water heater, air conditioner, etc. There are no specific restrictions here.

The heat exchange device and heat exchange system provided by the embodiment of the present application include at least two heat exchange components, at least one one-way on-off element and at least one control valve; each heat exchange component includes a shunt tube, a heat exchanger and a diverter. The diverter has a plurality of first openings at one end close to the heat exchanger. The diverter has a second opening at an end facing away from the heat exchanger. The diverter tube, the heat exchanger and the diverter have several first openings connected in sequence. , the control valve is connected between two adjacent heat exchange components and connected to the second openings of two adjacent diverters respectively; the one-way on-off element is connected between two adjacent diverters to form different The heat exchange circuit, the one-way on-off components and the diverter are configured to control the connection status of each heat exchange circuit, and the control valve is configured to connect the flow path between two adjacent heat exchange components; when the refrigerant is converted from gaseous state to When the refrigerant is in a liquid state, the one-way on-off element is configured to close; when the refrigerant is converted from a gas-liquid mixture to a gaseous state, the one-way on-off element is configured to open, and the control valve is configured to close the gap between two adjacent heat exchange components. flow path. In the above solution, the flow path of the refrigerant during condensation and evaporation can be changed through the one-way on-off element and the control valve, so that the resistance loss of the refrigerant during the condensation and evaporation processes is balanced, thereby achieving the purpose of improving heat exchange efficiency.

In the description of this application, it should be noted that, unless otherwise clearly stated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. Connection, or integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be an internal connection between two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood through specific circumstances.

The terms "first" and "second" in the description and claims of this application and the above description of the drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the application described herein can, for example, be practiced in sequences other than those illustrated or described herein.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present application. scope.

Claims (10)

1. A heat exchange device, characterized in that it includes: at least two heat exchange components, at least one one-way on-off element and at least one control valve;

   The heat exchange assembly includes a diverter tube, a heat exchanger and a diverter. One end of the diverter close to the heat exchanger has a plurality of first openings. An end of the diverter facing away from the heat exchanger has a first opening. Two openings, the diverter tube, the heat exchanger and several first openings of the diverter are connected in sequence, the control valve is connected between two adjacent heat exchange components, and is connected to The second openings of two adjacent diverters are connected; the one-way on-off element is connected between two adjacent diverter tubes to form different heat exchange circuits, and the one-way on-off element is connected between two adjacent diverter tubes to form different heat exchange circuits. The breaking element and the diverter are configured to control the communication state of each of the heat exchange circuits;

   When the refrigerant is converted from a gaseous state to a liquid state, the one-way on-off element is configured to close, and the control valve is configured to connect the flow path between two adjacent heat exchange components; When the liquid mixture is converted into a gaseous state, the one-way switching element is configured to open, and the control valve is configured to close the flow path between two adjacent heat exchange components.
2. The heat exchange device according to claim 1, characterized in that when the one-way switching element is configured to be closed, two adjacent heat exchange components are connected in series through the control valve, so as to Forming a first heat exchange loop in the heat exchange loop;

   When the one-way on-off element is configured to be open, the adjacent heat exchange components are sequentially connected in parallel through the control valve to form a second heat exchange circuit in the heat exchange circuit.
3. The heat exchange device according to claim 1, characterized in that at least two of the heat exchange components include a first heat exchange component and a second heat exchange component; the first heat exchange component includes a first split flow connected in sequence. tube, a first heat exchanger and a first diverter; the second heat exchange component includes a second diverter tube, a second heat exchanger and a second diverter connected in sequence, and the one-way on-off element is arranged at the The first diverter pipe is close to one end of the second diverter pipe; the control valve is connected to the second opening of the first diverter and the second opening of the second diverter respectively, and the control valve is also close to the second diverter pipe. One end of the first shunt pipe is connected.
4. The heat exchange device according to claim 3, characterized in that the first branch pipe is a gas phase branch pipe.
5. The heat exchange device according to claim 4, wherein the control valve includes a first connection port, a second connection port and a third connection port that can communicate with each other, and the first connection port and the first connection port are connected to each other. The second opening of the diverter is connected, the second connection port is connected to an end of the second diverter tube close to the first diverter tube, and the third connection port is connected to the second opening of the second diverter. Open connection.
6. The heat exchange device according to any one of claims 1 to 5, characterized in that in each of the heat exchange components, the heat exchanger includes a plurality of branch branches, and the plurality of branch branches are respectively connected with Each of the corresponding first openings of the diverter is connected to each other, wherein one of the diverter branches is connected to one of the first openings of the diverter.
7. The heat exchange device according to claim 6, characterized in that in each of the heat exchange components, the heat exchanger includes four branch branches; the flow divider has four first openings, and the The heat exchanger is respectively connected to the four first openings through the four branch branches.
8. The heat exchange device according to any one of claims 1 to 5, characterized in that the one-way on-off element is a one-way valve; and/or the control valve is a three-way valve.
9. The heat exchange device according to any one of claims 1 to 5, characterized in that the heat exchange device is at least one of an air-conditioning outdoor unit or an air-conditioning indoor unit.
10. A heat exchange system, characterized by including the heat exchange device according to any one of the above claims 1-9.

Images