Heat exchanger and air conditioner

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a heat exchanger which comprises a heat exchange tube set, a first heat exchange tube set, a second heat exchange tube set and a third heat exchange tube set. The gas-liquid separator is provided with a separation inlet, a gas phase outlet and a liquid phase outlet; a first port of the three-way pipe is communicated with the liquid phase outlet; the first end of the first pipe set is used for refrigerant inflow, and the second end of the first pipe set communicates with the separation inlet. The first end of the second pipe group is communicated with the gas phase outlet, and the second end is communicated with the second port of the three-way pipe; the first end of the third pipe set communicates with the third port of the three-way pipe, and the second end of the third pipe set is used for refrigerant outflow. The utility model further discloses the air conditioner.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, for example, to a heat exchanger and an air conditioner. Background Art

[0002] As global energy issues become increasingly severe, improving energy efficiency has become an important goal for all industries. As a key component in the air-conditioning system, the improvement of the energy efficiency of the heat exchanger is of great significance to the energy saving and consumption reduction of the entire air-conditioning system.

[0003] The related art discloses a cooling-only air conditioner including a condenser. When the refrigerant circulates in the heat exchange tube group for heat exchange, as the gas phase refrigerant condenses into liquid refrigerant, the liquid refrigerant flows along the inner wall, which increases the thermal resistance for the further condensation phase change of the gas phase refrigerant and reduces the heat exchange efficiency.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that there are at least the following problems in the related art:

[0005] Since the gas phase refrigerant and the liquid phase refrigerant are mixed and circulated in the heat exchange tube group, the energy efficiency of the heat exchanger is low.

[0006] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present application, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0007] In order to provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. The summary is not an extensive review, nor is it intended to identify key / critical components or delineate the scope of protection of these embodiments, but rather serves as a prelude to the detailed description that follows.

[0008] The embodiments of the present disclosure provide a heat exchanger and an air conditioner, which solve the problem of low energy efficiency of the heat exchanger.

[0009] In some embodiments, the heat exchanger comprises:

[0010] A heat exchange tube group, comprising a first tube group, a second tube group and a third tube group;

[0011] A gas-liquid separator, provided with a separation inlet, a gas phase outlet and a liquid phase outlet;

[0012] A three-way pipe, a first port of which is connected to the liquid phase outlet;

[0013] Furthermore, the first end of the first tube group is used for the inflow of refrigerant, and the second end thereof is connected to the separation inlet; the first end of the second tube group is connected to the gas phase outlet, and the second end thereof is connected to the second port of the tee pipe; the first end of the third tube group is connected to the third port of the tee pipe, and the second end thereof is used for the outflow of refrigerant.

[0014] Optionally, the liquid phase outlet is connected to the three-way pipe through a conducting component, and the conducting component can be controllably conducted or blocked;

[0015] The heat exchanger also includes a controller, which is electrically connected to the conducting component and is used to control the on / off state of the conducting component.

[0016] Optionally, the heat exchanger is applied to an air conditioner, and the controller is configured to control the conduction component to be blocked within time t1 after the air conditioner is started, and control the conduction component to be turned on after time t1.

[0017] Optionally, the value range of t1 is 4min≤t1≤10min.

[0018] Optionally, the heat exchanger is applied to an air conditioner, and the controller is configured to first control the conduction component to be blocked when the air conditioner is in a low-frequency operating state, and then control the conduction component to be turned on for a time t3 every time the air conditioner runs for a time t2.

[0019] Optionally, the value range of t2 is 20min≤t2≤40min.

[0020] Optionally, the value range of t3 is 5s≤t3≤15s.

[0021] Optionally, the first tube group, the second tube group and the third tube group are arranged in sequence from top to bottom.

[0022] Optionally, the separation inlet is arranged on a side wall of the gas-liquid separator; and / or,

[0023] The gas phase outlet is arranged at the top of the gas-liquid separator; and / or,

[0024] The liquid phase outlet is arranged at the bottom of the gas-liquid separator.

[0025] In some embodiments, the air conditioner includes the heat exchanger.

[0026] The heat exchanger and air conditioner provided by the embodiments of the present disclosure can achieve the following technical effects:

[0027] The refrigerant flows into the heat exchanger from the first end of the first tube group, and then flows into the gas-liquid separator from the second end of the second tube group. The refrigerant is separated into gas phase and liquid phase in the gas-liquid separator. Among them, the gas phase refrigerant flows from the gas phase outlet to the first end of the second tube group, and then flows from the second end of the second tube group to the second port of the tee; the liquid phase refrigerant flows from the liquid phase outlet to the first port of the tee. Then, the refrigerant flows from the third port of the tee to the first end of the third tube group. Finally, the refrigerant flows out of the heat exchanger from the second end of the third tube group. Here, under the action of the gas-liquid separator, the gas phase refrigerant flows through the second tube group and the third tube group in turn, and its long process is conducive to the full heat exchange of the gas phase refrigerant. The liquid phase refrigerant only flows through the third tube group, and the flow resistance and pressure drop are reduced because the gas has been separated. In this way, the different heat exchange characteristics of the gas phase and liquid phase of the refrigerant are fully utilized, thereby improving the overall heat exchange efficiency.

[0028] The above general description and the following description are exemplary and explanatory only and are not intended to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] One or more embodiments are exemplarily described by corresponding drawings, which do not limit the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements, and the drawings do not constitute a scale limitation, and wherein:

[0030] Figure 1 is a schematic structural diagram of a heat exchange tube group provided in an embodiment of the present disclosure;

[0031] Figure 2 is a schematic structural diagram of a gas-liquid separator provided in an embodiment of the present disclosure;

[0032] Figure 3 is a refrigerant flow diagram of the conductive component provided by the embodiment of the present disclosure when it is conductive;

[0033] Figure 4 is a refrigerant flow diagram of the conductive component provided by the embodiment of the present disclosure in a blocked state;

[0034] Figure 5 is a schematic structural diagram of a spoiler tube assembly provided by an embodiment of the present disclosure;

[0035] Figure 6 It is a schematic diagram of the structure of the spoiler tube provided in an embodiment of the present disclosure.

[0036] Reference numerals:

[0037] 100, heat exchange tube group; 101, first tube group; 102, second tube group; 103, third tube group; 104, inflow tube section; 105, outflow tube section; 110, gas-liquid separator; 111, separation inlet; 112, gas phase outlet; 113, liquid phase outlet; 120, tee pipe; 121, first port; 122, second port; 123, third port; 130, conduction component;

[0038] 200, distribution pipe; 201, mounting baffle; 202, distribution port; 203, fluid inlet; 210, spoiler tube; 211, throttling hole; 212, outflow hole; 220, distribution chamber; 221, inlet chamber; 230, spiral spoiler strip; 240, inlet pipe. DETAILED DESCRIPTION

[0039] In order to be able to understand the features and technical contents of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the present disclosure. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.

[0040] The terms "first", "second", etc. in the specification and claims of the disclosed embodiments and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged where appropriate to describe the disclosed embodiments here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0041] In the embodiments of the present disclosure, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present disclosure and their embodiments, and are not intended to limit the indicated devices, elements or components to have a specific direction, or to be constructed and operated in a specific direction. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0042] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.

[0043] Unless otherwise stated, the term "plurality" means two or more.

[0044] In the embodiment of the present disclosure, the character " / " indicates that the preceding and following objects are in an "or" relationship. For example, A / B indicates: A or B.

[0045] The term "and / or" is a description of the association relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0046] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0047] Combination Figure 1-6 As shown, an embodiment of the present disclosure provides an air conditioner, which includes a heat exchanger.

[0048] In some embodiments, the heat exchanger includes a heat exchange tube group 100, a gas-liquid separator 110 and a tee pipe 120. Figure 1 and Figure 2 As shown, the heat exchange tube group 100 includes a first tube group 101, a second tube group 102 and a third tube group 103; the gas-liquid separator 110 is provided with a separation inlet 111, a gas phase outlet 112 and a liquid phase outlet 113; the first port 121 of the three-way pipe 120 is connected to the liquid phase outlet 113; and the first end of the first tube group 101 is used for the inflow of refrigerant, and the second end thereof is connected to the separation inlet 111; the first end of the second tube group 102 is connected to the gas phase outlet 112, and the second end thereof is connected to the second port 122 of the three-way pipe 120; the first end of the third tube group 103 is connected to the third port 123 of the three-way pipe 120, and the second end thereof is used for the outflow of refrigerant.

[0049] In this embodiment, if Figure 3As shown, the refrigerant flows into the heat exchanger from the first end of the first tube group 101, and then flows into the gas-liquid separator 110 from the second end of the second tube group 102. The refrigerant is separated into gas phase and liquid phase in the gas-liquid separator 110. Among them, the gas phase refrigerant flows from the gas phase outlet 112 to the first end of the second tube group 102, and then flows from the second end of the second tube group 102 to the second port 122 of the three-way pipe 120; the liquid phase refrigerant flows from the liquid phase outlet 113 to the first port 121 of the three-way pipe 120. Then, the refrigerant flows from the third port 123 of the three-way pipe 120 to the first end of the third tube group 103. Finally, the refrigerant flows out of the heat exchanger from the second end of the third tube group 103. Here, under the action of the gas-liquid separator 110, the gas phase refrigerant flows through the second tube group 102 and the third tube group 103 in sequence, and its long process is conducive to sufficient heat exchange of the gas phase refrigerant. The liquid phase refrigerant only flows through the third tube group 103, and since the gas has been separated, the flow resistance and pressure drop are reduced. In this way, the different heat exchange characteristics of the gas phase and the liquid phase of the refrigerant are fully utilized, thereby improving the overall heat exchange efficiency.

[0050] Optionally, the first tube group 101 , the second tube group 102 and the third tube group 103 are arranged in sequence from top to bottom.

[0051] In this embodiment, the top-down arrangement makes the overall structure of the heat exchanger more compact and reduces the floor space. In addition, the refrigerant flows in from the first end of the top first tube group 101 and flows out from the second end of the bottom third tube group 103. In this way, the refrigerant can flow more smoothly with the help of gravity, reducing the energy required for the compressor pumping cycle, thereby improving the energy efficiency of the heat exchanger.

[0052] Optionally, the first end of the first tube group 101 is provided with an inflow tube section 104. Thus, when the heat exchanger is applied to an air conditioner, the refrigerant of the refrigerant circulation system flows into the heat exchanger through the inflow tube section 104.

[0053] Optionally, the second end of the third tube group 103 is provided with an outflow tube section 105. In this way, when the heat exchanger is applied to an air conditioner, the refrigerant of the heat exchanger enters the refrigerant circulation system through the outflow tube section 105.

[0054] Optionally, the separation inlet 111 is disposed on a side wall of the gas-liquid separator 110 .

[0055] In this embodiment, the refrigerant enters the gas-liquid separator 110 through the separation inlet 111. Arranging the inlet of the refrigerant on the side wall of the gas-liquid separator 110 is beneficial to reducing the turbulence of the refrigerant at the inlet compared to arranging it at the top or bottom, so that the refrigerant enters the interior of the gas-liquid separator 110 more smoothly.

[0056] Optionally, the gas phase outlet 112 is disposed at the top of the gas-liquid separator 110 .

[0057] In this embodiment, since the density of gas is lower than that of liquid, the gas naturally rises and gathers at the top of the gas-liquid separator 110. By arranging the gas phase outlet 112 at the top, the separated gas can be more effectively collected and discharged, thereby improving the separation efficiency.

[0058] Optionally, the liquid phase outlet 113 is disposed at the bottom of the gas-liquid separator 110 .

[0059] In this embodiment, since the density of the liquid is greater than that of the gas, the liquid will naturally settle at the bottom of the separator during the gas-liquid separation process. The liquid phase outlet 113 is arranged at the bottom, so that the separated liquid can be efficiently collected and discharged. In addition, the remixing of the separated liquid and the unseparated gas can be avoided, thereby improving the separation efficiency.

[0060] Alternatively, if Figure 2 As shown, the three-way pipe 120 is constructed in a Y shape, with two ports at the upper part and one port at the lower part. Among them, the first port 121 and the second port 122 of the three-way pipe 120 are two ports at the upper part of the Y shape, and the third port 123 of the three-way pipe 120 is a port at the lower part of the Y shape. In this way, the refrigerant at the liquid phase outlet 113 flows to the first port 121 of the three-way pipe 120, and the refrigerant at the second end of the second tube group 102 flows to the second port 122 of the three-way pipe 120. Then, the refrigerant at the first port 121 and the second port 122 flows downward together to the third port 123.

[0061] Optionally, the liquid phase outlet 113 is connected to the three-way pipe 120 through a conducting component 130 , and the conducting component 130 can be controllably turned on or off; the heat exchanger also includes a controller, which is electrically connected to the conducting component 130 and is used to control the on and off state of the conducting component 130 .

[0062] In this embodiment, the conducting component 130 may be a solenoid valve or other structures capable of controlling on and off. When the conducting component 130 is on, the refrigerant at the liquid phase outlet 113 may flow to the first port 121 of the three-way pipe 120; when the conducting component 130 is blocked, the refrigerant at the liquid phase outlet 113 cannot flow to the first port 121 of the three-way pipe 120. The on and off state of the conducting component 130 is controlled by a controller.

[0063] Optionally, the heat exchanger is applied to an air conditioner, and the controller is configured to control the conduction component 130 to be blocked within time t1 after the air conditioner is started, and control the conduction component 130 to be turned on after time t1.

[0064] In this embodiment, when the air conditioner is started, the pressure, temperature and other parameters in the system will undergo a rapid change process. During the time t1, the conductive component 130 is controlled to be blocked. At this time, the flow path of the refrigerant is (eg Figure 4As shown in the figure): the refrigerant flows into the heat exchanger from the first end of the first tube group 101, and then flows into the gas-liquid separator 110 from the second end of the second tube group 102. At this time, the gas-liquid separator 110 does not play the role of gas-liquid separation, but serves as a liquid storage device. After the gas-liquid separator 110 is filled, the refrigerant can only flow to the first end of the second tube group 102 through the gas phase outlet 112. Then, the refrigerant flows from the second end of the second tube group 102 to the second port 122 and the third port 123 of the three-way pipe 120 in sequence. Then, the refrigerant flows from the third port 123 of the three-way pipe 120 to the first end of the third tube group 103. Finally, the refrigerant flows out of the heat exchanger from the second end of the third tube group 103. In this way, during the startup stage of the air conditioner, the liquid storage function of the gas-liquid separator 110 plays a buffering role in the circulation of the refrigerant, which is conducive to a smooth transition. After a delay of time t1, the refrigerant circulation system reaches a relatively stable state, and at this time the controller controls the conduction component 130 to be turned on. After the conducting component 130 is conducted, the gas-liquid separator 110 performs the gas-liquid separation function, and the liquid-phase refrigerant flows from the liquid-phase outlet 113 to the three-way pipe 120 , and then flows to the third pipe group 103 .

[0065] Optionally, the value range of t1 is 4min≤t1≤10min.

[0066] In this embodiment, t1 can be selected from 4 min, 5 min, 6 min, 7 min, 8 min, 9 min or 10 min.

[0067] Exemplarily, t1 is 6 minutes. Within 6 minutes after the air conditioner is started, the controller controls the conduction component 130 to be blocked, and the refrigerant in the gas-liquid separator 110 can only flow to the second tube group 102 through the gas phase outlet 112. After 6 minutes, the controller controls the conduction component 130 to be turned on, and the refrigerant in the gas-liquid separator 110 has two flow paths: first, the gas phase refrigerant flows to the second tube group 102 through the gas phase outlet 112; second, the liquid phase refrigerant flows to the three-way pipe 120 through the liquid phase outlet 113, and then flows to the third tube group 103.

[0068] Optionally, the heat exchanger is applied to an air conditioner, and the controller is configured to control the conduction component 130 to be blocked when the air conditioner is in a low-frequency operating state, and then control the conduction component 130 to be turned on for a time t3 every time the air conditioner runs for a time t2.

[0069] In this embodiment, when the air conditioner is in low-frequency working condition, its cooling or heating efficiency is low, and the actual flow required by the refrigerant circulation system is relatively small. At this time, the conduction component 130 is first controlled to be blocked, and then the air conditioner controls the conduction component 130 to be turned on for t3 time every time it runs for t2 time. In this way, the conduction component 130 is intermittently turned on: when the controller controls the conduction component 130 to be blocked, the gas-liquid separator 110 does not play the role of gas-liquid separation, but serves as a liquid storage device to store part of the refrigerant in the refrigerant circulation system. When the controller controls the conduction component 130 to be turned on, the gas-liquid separator 110 plays the role of gas-liquid separation, and the gas-phase refrigerant and the liquid-phase refrigerant flow through the second tube group 102 and the third tube group 103 respectively for heat exchange. In this way, it is possible to reduce the ineffective circulation of the refrigerant in the system and thus reduce energy loss, and to ensure the heat exchange performance of the heat exchanger, thereby greatly improving the energy efficiency of the air conditioner.

[0070] Optionally, the value range of t2 is 20min≤t2≤40min.

[0071] In this embodiment, t2 can be selected from 20 min, 22 min, 25 min, 27 min, 30 min, 33 min, 35 min, 38 min or 40 min.

[0072] Optionally, the value range of t3 is 5s≤t3≤15s.

[0073] In this embodiment, t3 can be selected from 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 13s, 14s or 15s.

[0074] Exemplarily, t2 is 30 minutes, and t3 is 10 seconds. When the air conditioner is in low-frequency operation, the controller first controls the conduction component 130 to be blocked, and then the air conditioner controls the conduction component 130 to be turned on for 10 seconds every 30 minutes of operation. In this way, when the conduction component 130 is blocked, the gas-liquid separator 110 does not play the role of gas-liquid separation, but serves as a liquid storage device to store part of the refrigerant in the refrigerant circulation system; when the conduction component 130 is turned on, the gas-liquid separator 110 plays the role of gas-liquid separation, and the gas-phase refrigerant and the liquid-phase refrigerant flow through the second tube group 102 and the third tube group 103 respectively for heat exchange.

[0075] In some embodiments, the heat exchanger includes a flow-turbulating tube assembly. Figure 5 and Figure 6As shown, the spoiler tube set includes a distribution tube 200 and a spoiler structure. The interior of the distribution pipe 200 is divided by a plurality of mounting partitions 201 to form a plurality of distribution chambers 220, and the mounting partitions 201 are provided with mounting holes; the spoiler structure comprises a spiral spoiler strip 230 and a spoiler pipe 210; wherein the spiral spoiler strip 230 is arranged in the spoiler pipe 210 and arranged along the extension direction of the spoiler pipe 210; the spoiler pipe 210 is arranged in the distribution pipe 200 and penetrates the mounting hole; a throttling hole 211 is provided at the first end of the spoiler pipe 210, an outflow hole 212 is provided on the side wall of the spoiler pipe 210, and each distribution chamber 220 corresponds to at least one outflow hole 212; and the distribution pipe 200 is provided with a fluid inlet 203 and a distribution port 202, the fluid inlet 203 and the throttling hole 211 are in the same distribution chamber 220, and the distribution chamber 220 is also called an inlet chamber 221; the remaining distribution chambers 220 except the inlet chamber 221 correspond to at least one distribution port 202.

[0076] In this embodiment, the flow path of the refrigerant in the spoiler tube group is: enter the inlet chamber 221 from the fluid inlet 203, then enter the spoiler tube 210 from the throttle hole 211, then enter the corresponding distribution chamber 220 from the outflow hole 212, and finally flow out of the spoiler tube group from the distribution port 202. Under the action of the throttle hole 211, it is conducive to the mixing of the gas-liquid two-phase refrigerant. Under the action of the spiral spoiler belt 230, the refrigerant is guided to circulate in the spoiler tube 210 in a spiral, so that the refrigerant produces rotation and eddy current to achieve the spoiler effect, and then fully mixed. In addition, after the refrigerant enters the distribution chamber 220 with a larger space from the outflow hole 212 with a smaller aperture, it is conducive to further diffusion and mixing. In this way, the refrigerant flowing out of the spoiler tube group, the gas-liquid two-phase refrigerant can be fully mixed, which is conducive to the uniform distribution of the subsequent refrigerant.

[0077] Optionally, the spiral angle of the spiral spoiler strip 230 is greater than or equal to 720°. In this way, by limiting the spiral angle, it is beneficial for the refrigerant to flow along a longer path when passing through the spiral spoiler strip 230, thereby ensuring the mixing effect of the gas-liquid two-phase refrigerant.

[0078] Exemplarily, the spiral angle of the spiral spoiler strip 230 may be selected to be 720°, 810°, 900°, 990°, 1080°, 1170°, 1260°, 1350°, 1440°, 1530°, 1620°, 1710° or 1800°.

[0079] Optionally, an inlet pipe 240 is provided at the fluid inlet 203 , and the aperture of the throttling hole 211 is smaller than the inner diameter of the inlet pipe 240 .

[0080] In this embodiment, the aperture of the throttle hole 211 is smaller than the inner diameter of the inlet pipe 240, so that the flow rate of the refrigerant increases and the flow rate is adjusted when the refrigerant passes through the throttle hole 211. In this way, the flow rate through the throttle hole 211 can be controlled according to system requirements to meet specific operating requirements. Here, if the aperture of the throttle hole 211 is larger than the inner diameter of the inlet pipe 240, the acceleration effect of the refrigerant is poor, which is not conducive to the mixing of the gas-liquid two-phase refrigerant.

[0081] Optionally, an inlet pipe 240 is provided at the fluid inlet 203 , and the inner diameter of the flow-turbine pipe 210 is smaller than the inner diameter of the inlet pipe 240 .

[0082] In this embodiment, the inner diameter of the spoiler tube 210 is smaller than the inner diameter of the inlet tube 240, so that the refrigerant maintains a relatively high flow rate when flowing in the spoiler tube 210 after being accelerated by the throttle hole 211. Here, if the inner diameter of the spoiler tube 210 is larger than the inner diameter of the inlet tube 240, the refrigerant will have a reduced flow rate after flowing from the inlet tube 240 into the spoiler tube 210, which is not conducive to the mixing of the gas-liquid two-phase refrigerant.

[0083] Optionally, when the distribution pipe 200 is arranged vertically, the plurality of distribution chambers 220 are arranged in sequence from top to bottom, and the distribution chamber 220 at the lowermost end serves as the inlet chamber 221 .

[0084] In this embodiment, the refrigerant flows into the inlet chamber 221 from the inlet pipe 240, then enters the spoiler pipe 210 upward through the throttle hole 211, and then continues to flow upward along the spiral spoiler strip 230. In this way, under the action of the spoiler structure, the refrigerant flowing out of the uppermost distribution chamber 220 is also the refrigerant with better mixing effect.

[0085] Optionally, all mounting partitions 201 are arranged parallel to the cross section of the distribution pipe 200 , and the axes of all mounting holes are arranged to coincide with the axis of the distribution pipe 200 .

[0086] In this embodiment, all the mounting baffles 201 are arranged parallel to the cross section of the distribution pipe 200, and play a uniform supporting role in the distribution pipe 200, thereby increasing the overall rigidity of the distribution pipe 200 and reducing the deformation and vibration caused by the fluid pressure fluctuation. The axes of all the mounting holes are arranged to coincide with the axis of the distribution pipe 200, which is conducive to ensuring the installation accuracy of the spoiler pipe 210, so that the axis of the spoiler pipe 210 after installation also coincides with the axis of the distribution pipe 200.

[0087] Optionally, the second end of the spoiler tube 210 is blocked. In this way, when the refrigerant flows to the second end of the spoiler tube 210, it can only flow into the distribution chamber 220 from the corresponding outflow hole 212, and will not flow out from the second end of the spoiler tube 210. Therefore, the spoiler effect of the spoiler tube 210 is guaranteed, which is conducive to the full mixing of the gas-liquid two-phase refrigerant.

[0088] The above description and the accompanying drawings sufficiently illustrate the embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Portions and features of some embodiments may be included in or replace portions and features of other embodiments. The embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A heat exchanger, characterized in that: include: A heat exchange tube group (100) comprises a first tube group (101), a second tube group (102) and a third tube group (103); A gas-liquid separator (110) having a separation inlet (111), a gas phase outlet (112) and a liquid phase outlet (113); A three-way pipe (120), a first port (121) of which is connected to the liquid phase outlet (113); Furthermore, the first end of the first tube group (101) is used for the inflow of refrigerant, and the second end thereof is connected to the separation inlet (111); the first end of the second tube group (102) is connected to the gas phase outlet (112), and the second end thereof is connected to the second port (122) of the three-way tube (120); the first end of the third tube group (103) is connected to the third port (123) of the three-way tube (120), and the second end thereof is used for the outflow of refrigerant.

2. The heat exchanger according to claim 1, characterized in that: The liquid phase outlet (113) is connected to the three-way pipe (120) through a conducting component (130), and the conducting component (130) can be controlled to be conducted or blocked; The heat exchanger also includes a controller, which is electrically connected to the conduction component (130) and is used to control the on / off state of the conduction component (130).

3. The heat exchanger according to claim 2, characterized in that: The heat exchanger is applied to an air conditioner, and the controller is configured to control the conduction component (130) to be blocked within time t1 after the air conditioner is started, and to control the conduction component (130) to be turned on after time t1.

4. The heat exchanger according to claim 3, characterized in that The value range of t1 is 4min≤t1≤10min.

5. The heat exchanger according to claim 2, characterized in that: The heat exchanger is applied to an air conditioner, and the controller is configured to first control the conduction component (130) to be blocked when the air conditioner is in a low-frequency operating state, and then control the conduction component (130) to be turned on for a time of t3 every time the air conditioner runs for a time of t2.

6. The heat exchanger according to claim 5, characterized in that The value range of t2 is 20min≤t2≤40min.

7. The heat exchanger according to claim 5, characterized in that The value range of t3 is 5s≤t3≤15s.

8. The heat exchanger according to any one of claims 1 to 7, characterized in that: The first tube group (101), the second tube group (102) and the third tube group (103) are arranged in sequence from top to bottom.

9. The heat exchanger according to any one of claims 1 to 7, characterized in that: The separation inlet (111) is disposed on a side wall of the gas-liquid separator (110); and / or, The gas phase outlet (112) is disposed at the top of the gas-liquid separator (110); and / or, The liquid phase outlet (113) is disposed at the bottom of the gas-liquid separator (110).

10. An air conditioner, characterized in that: Comprising the heat exchanger according to any one of claims 1 to 9.

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