CN117232289A - Heat exchange device and heat exchange system - Google Patents

Abstract

The invention provides a heat exchange device and a heat exchange system. The heat exchange device includes: a heat exchange tube, a first component, a conveying pipe, an inlet and outlet pipe and a first tube. The heat exchange tube includes a heat exchange channel, and the heat exchange tube includes a plurality of heat exchange channels. A plurality of heat exchange tubes are arranged at intervals in the length direction of the first component, and one end of the heat exchange tube in the length direction is directly or indirectly connected to the first component. The first component includes a first cavity, and the first cavity is connected to a plurality of heat exchangers. The hot channels are connected; the conveying pipe includes a conveying channel, which is connected with multiple heat exchange channels; there are multiple inlet and outlet pipes, one inlet and outlet pipe is connected with at least one heat exchange pipe, and the multiple inlet and outlet pipes are connected with the conveying channel; At least part of the first tube is located in the first cavity, the first tube includes a second cavity, at least part of the second cavity is located in the first cavity, and the part of the second cavity located in the first cavity is not connected with the first cavity. The heat exchange device according to the embodiment of the present invention reduces the problem of refrigerant liquid accumulation in the first component by disposing the first tube.

Description

Heat exchange devices and heat exchange systems

Technical field

The present invention relates to the technical field of heat exchangers, and in particular to a heat exchange device and a heat exchange system.

Background technique

At present, when microchannel heat exchangers are used as evaporators in air conditioning systems, since the liquid distribution between each flat tube cannot be completely uniform, a large amount of unevaporated liquid will enter the system at the evaporator outlet, resulting in refrigerant flow. Reduced, the heat exchange efficiency decreases, and may lead to adverse consequences such as compressor damage.

In the existing horizontally inserted fin heat exchanger, the second component is located on both sides of the core. The refrigerant enters the heat exchanger from multiple inlets and enters the second component at the outlet after heat exchange. Since the cavity of the second component is large, some parts The unevaporated liquid refrigerant will fall into the bottom of the second outlet component due to gravity, while the gaseous refrigerant is in the upper space of the second component. The liquid refrigerant is mixed with the gaseous refrigerant driven by the pressure difference and is taken out of the outlet pipe and enters the compressor. , thus affecting the normal operation of the compressor and reducing the heat exchange efficiency.

Microchannel heat exchangers have been commonly used in air conditioning systems as condensers or evaporators. Heat exchangers usually include multiple heat exchange tubes, inlet headers and outlet headers. When the air conditioning system is working, in related technologies, when the exchanger When the heat exchanger is used as an evaporator, the heat exchange tubes are placed vertically, and the inlet header and outlet header are placed horizontally. The gas-liquid two-phase refrigerant flows from the refrigerant into the inlet header and then flows to each heat exchange tube. It flows out from the outlet header. Under the action of gravity, the gas-liquid two-phase refrigerant easily produces gas and liquid stratification in the outlet header. The liquid refrigerant is mixed with the gaseous refrigerant driven by the pressure difference and is brought out. Therefore, It affects the reliability of the operation of the heat exchange system, reduces the service life of the heat exchange unit, and affects the heat exchange efficiency of the heat exchange system.

Contents of the invention

The embodiment of the present invention provides a heat exchange device, which is beneficial to improving the operational reliability of the heat exchange system, improving the service life of the heat exchange unit, and improving the heat exchange efficiency of the heat exchange system.

According to an embodiment of the present invention, a heat exchanger is proposed, and the heat exchanger includes:

A heat exchange tube, the heat exchange tube includes a heat exchange channel, and there are multiple heat exchange tubes;

A first component, a plurality of heat exchange tubes are arranged at intervals in the length direction of the first component, the first end of the heat exchange tubes in the length direction is directly or indirectly connected to the first component, and the third heat exchange tube is spaced apart in the length direction of the first component. An assembly includes a first cavity communicating with a plurality of the heat exchange channels;

A conveying pipe, the conveying pipe includes a conveying channel, the conveying channel is connected with a plurality of the heat exchange channels;

Inlet and outlet pipes, there are multiple inlet and outlet pipes, one inlet and outlet pipe is connected to at least one heat exchange tube, and the inlet and outlet pipes are connected to the transportation channel; and

A first tube, at least a portion of the first tube is located in the first cavity, the first tube includes a second cavity, at least a portion of the second cavity is located in the first cavity, and is located in the first cavity. This part of the second cavity is not connected to the first cavity.

In some embodiments, the first tube is directly or indirectly connected to the delivery tube, and the second chamber is connected to the delivery channel;

One end of the first tube is connected to the delivery tube, and the other end extends into the first cavity, and the first cavity is sealed relative to the second cavity.

An embodiment of the present invention also provides a heat exchange system, including: a compressor, a refrigerant, and a heat exchange device according to an embodiment of the present invention;

The length direction of the first component is at an angle to the horizontal direction. The first component includes a first end cap and a second end cap. The first end cap and the second end cap are along the length of the first component. direction, the first end cap is higher than the second end cap in the vertical direction, the first tube is directly connected or indirectly connected to the second end cap,

When the heat exchange device works as an evaporator, part of the refrigerant flows from the delivery channel to the plurality of heat exchange channels and then flows into the first cavity, and another part of the refrigerant flows from the delivery channel Flows to the second cavity, and the average temperature of the refrigerant in the second cavity is higher than the average temperature of the refrigerant in the first cavity.

In some embodiments, the first cavity includes a first accommodation cavity and a second accommodation cavity, the first accommodation cavity and the second accommodation cavity are connected, and the first accommodation cavity is connected with the heat exchange tube. The heat exchange channels are connected;

At least part of the second cavity is located in the second accommodation cavity, and the part of the second cavity located in the second accommodation cavity is not connected with the second accommodation cavity.

In some embodiments, the first assembly includes a first tube member and a second tube member, the first receiving cavity is formed in the first pipe member, and the second receiving cavity is formed in the second pipe member.

In some embodiments, the delivery tube includes a first communication hole and a second communication hole, one end of the first tube is directly or indirectly connected to the delivery tube at the first communication hole, and the third communication hole The other end of a tube is directly or indirectly connected to the delivery tube at the second communication hole, and at least part of the first tube is located in the second accommodation cavity;

The refrigerant can flow into the second cavity of the first tube from the first communication hole, and flow out from the second communication hole into the delivery channel of the delivery tube.

In some embodiments, the delivery pipe at a portion of the first communication hole leading to the second communication hole is provided with a first one-way valve so that the refrigerant can flow from the second communication hole at that location. One-way flow in the delivery pipe reaches the first communication hole;

and / or,

The first tube is provided with a second one-way valve to enable the refrigerant to flow in one direction from the first communication hole to the second communication hole within the first tube.

In some embodiments, a throttling device is further included. The throttling device is connected to the delivery pipe and is located downstream of the delivery pipe along the refrigerant flow direction in the delivery pipe. The throttling device is closer to the refrigerant inlet channel of the heat exchange tube than to the refrigerant outlet channel of the heat exchange tube.

In some embodiments, a second component is further included, the second component includes a third wall, the second component further includes a third cavity, and the wall surrounding the third cavity includes the third wall;

The second end in the length direction of the heat exchange tube is directly or indirectly connected to the second component, and the first cavity is connected to a plurality of the heat exchange channels; both the heat exchange channel and the transport channel are Communicated with the third chamber, a first partition is provided in the first pipe, the first accommodation chamber includes a first sub-chamber and a second sub-cavity, at least part of the first partition is located in the Between the first sub-chamber and the second sub-chamber, a second partition is provided in the second assembly, and the third chamber includes a third sub-chamber and the fourth sub-chamber, at least Part of the second partition is located between the third sub-chamber and the fourth sub-chamber, and the heat exchange passage of at least one heat exchange tube communicates with the second sub-chamber and the fourth sub-chamber. A fourth sub-chamber, the heat exchange channels of the remaining heat exchange tubes communicate with the first sub-chamber and the third sub-chamber;

The conveying pipe includes a first conveying pipe and a second conveying pipe. The conveying channel of the first conveying pipe communicates with the second sub-chamber. The second assembly includes a third sub-chamber surrounding the third sub-chamber. Three sub-walls and a fourth sub-wall surrounding the fourth sub-cavity, one end of the second delivery pipe is directly or indirectly connected to part of the third sub-wall, and the other end of the second delivery pipe is connected to part of the third sub-wall. The fourth sub-wall is directly or indirectly connected, and the transport channel of the second transport pipe connects the fourth sub-chamber and the third sub-chamber.

In some embodiments, the first delivery tube includes a first communication hole and a second communication hole, and one end of the second cavity of the first tube is connected to the first delivery tube at the first communication hole. , the other end of the second cavity of the first pipe is connected to the first delivery pipe at the second communication hole, and at least part of the first pipe is located in the second accommodation cavity;

The refrigerant can flow into the second cavity of the first pipe from the first communication hole, and flow out from the second communication hole into the first delivery pipe.

In some embodiments, the first delivery pipe is provided with a third one-way valve, and the third one-way valve is configured to enable the refrigerant to flow from the second communication hole within the first delivery pipe. flow to the first communication hole;

The first tube is provided with a fourth one-way valve to enable the refrigerant to flow in one direction from the first communication hole to the second communication hole within the first tube.

In some embodiments, the delivery tube includes a first communication hole and a second communication hole, one end of the first tube is directly or indirectly connected to the delivery tube at the first communication hole, and the third communication hole The other end of a tube is directly or indirectly connected to the delivery tube at the second communication hole, and at least part of the first tube is located in the second accommodation cavity;

The refrigerant can flow from the first communication hole into the second cavity of the first tube, and flow out from the second communication hole into the delivery pipe;

A fifth one-way valve is provided in the pipeline between the first communication hole and the second communication hole, so that the refrigerant can flow from the second communication hole to the delivery pipe in one direction. The first communication hole.

In some embodiments, the first pipe is connected to the outlet of the compressor, the heat exchange system includes a four-way valve and a heat exchanger, the four-way valve includes a first interface, a second interface, a third interface interface and a fourth interface. One end of the first pipe is connected to the outlet of the compressor, and the other end of the first pipe is connected to the first interface. When the heat exchange device is working as an evaporator, , the first interface is connected to the third interface, the third interface is connected to an interface of the heat exchanger, the fourth interface is connected to an interface of the first component, and the second The interface is connected with the inlet of the compressor.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description serve to explain the principles of the invention.

Figures 1-6 are schematic diagrams of heat exchange devices in different embodiments of the present invention;

Figure 7 is a schematic diagram of a heat exchange system in an embodiment of the present invention.

Reference signs:

1-Compressor, 2-inlet; 3-outlet; 4-four-way valve; 5-heat exchanger;

10-Heat exchange tube;

20-first component; 21-first pipe fitting; 22-second pipe fitting; 201-first partition;

30-Conveyor pipe; 31-Inlet and outlet pipe; 32-First conveyor pipe; 33-Second conveyor pipe;

40-First pipeline;

50-the fifth one-way valve; 51-the first one-way valve; 52-the second one-way valve; 53-the third one-way valve; 54-the fourth one-way valve;

60-Throttle device;

70-Second component; 701-Second partition.

Detailed ways

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and are not to be construed as limiting the present invention.

Referring to Figure 1, this embodiment provides a heat exchange device, including: a heat exchange tube 10, a first component 20, a delivery pipe 30, an inlet and outlet pipe 31 and a first tube 40. The heat exchange tube 10 includes a heat exchange channel. There are multiple heat pipes 10 , all of which can be used for external heat exchange. The plurality of heat exchange pipes 10 are arranged at intervals in the length direction of the first component 20 . The first end of the heat exchange tube 10 in the length direction is in contact with the first component 20 Directly connected or indirectly connected, the first component 20 includes a first cavity, and the first cavity is connected to a plurality of heat exchange channels; the delivery pipe 30 includes a transfer channel, and the transfer channel is connected to a plurality of heat exchange channels; the inlet and outlet pipes 31 are multiple , one inlet and outlet pipe 31 is connected with at least one heat exchange tube 10, and the inlet and outlet pipes 31 are both connected with the conveying channel; at least part of the first tube 40 is located in the first cavity, and the first tube 40 includes a second cavity, and at least part of the second The cavity is located in the first cavity, and the part of the second cavity located in the first cavity is not connected with the first cavity.

The heat exchange system can have many different working modes. When the heat exchange device works as an evaporator of the refrigerant in the system, the refrigerant can flow into the inlet and outlet pipes 31 along the delivery channel of the delivery pipe 30, and then further flow into multiple The heat exchange channel of each heat exchange tube 10 exchanges heat with the air, and then flows into the first cavity of the first component 20 . Part of the refrigerant coming from the delivery channel will flow into the second cavity of the first tube 40. The temperature of this part of the refrigerant is relatively higher than the temperature of the refrigerant in the first component 20. Therefore, under the action of gravity, The liquid refrigerant accumulated in the first component 20 can be heated by this part of the refrigerant. Since at least part of the first tube 40 is located in the first cavity, the first tube 40 can heat the liquid refrigerant located in the first cavity, which is beneficial to reducing the accumulation of liquid refrigerant in the first assembly 20 and reducing the amount of liquid refrigerant. of outflow.

The first pipe 40 is connected to the delivery pipe 30, so that the refrigerant in the delivery channel can flow into the second cavity of the first pipe 40. The first pipe 40 can also be connected to the outlet 3 of the compressor 1, so that the compressor The high-temperature refrigerant flowing out of 1 can flow into the second cavity of the first tube 40.

Referring to Figure 1, in the embodiment in which the first pipe 40 is connected to the delivery pipe 30, when the heat exchange system operates in the heating mode in winter, the heat exchange device operates as an evaporator, and the throttled two-phase refrigerant flows from The transport pipe 30 enters the plurality of heat exchange tubes 10. The transport pipe 30 further distributes the refrigerant to each inlet and outlet pipe 31 through the liquid separation head. Since the pressure drop in the liquid separation section is large, it flows into the second cavity of the first pipe 40. The refrigerant temperature will be greater than the temperature of the refrigerant in the first cavity of the first component 20, so that the liquid refrigerant accumulated in the first cavity is heated by the high-temperature refrigerant in the first tube 40, causing it to evaporate, reducing the Outflow of liquid refrigerant from component 20 .

When the heat exchange system operates in cooling mode in summer, the heat exchanger operates as a condenser. High-temperature and high-pressure gaseous refrigerant enters the heat exchange tube 10 from the first component 20. After heat exchange with the air, a high-temperature and high-pressure liquid refrigerant is formed and flows in for transportation. tube 30. At this time, the liquid refrigerant inside the first tube 40 in the first component 20 is heated and vaporized by the high-temperature gaseous refrigerant in the first component 20 and is sealed in the first tube 40. Since the first component 20 The first 40 is provided inside, thus reducing the internal volume of the first component 20, which is beneficial to improving the heat exchange efficiency of the heat exchange device, thus improving the heat exchange efficiency of the heat exchange device.

In some embodiments, the first tube 40 is directly or indirectly connected to the delivery pipe 30 , and the second chamber is connected to the delivery passage, so that the high-temperature refrigerant in the delivery passage can flow into the second chamber. Specifically, one end of the first tube 40 is connected to the delivery tube 30, and the other end extends into the first chamber, and the first chamber is sealed relative to the second chamber.

This embodiment further provides a heat exchange system, including: a compressor 1, a refrigerant and the heat exchange device in the above embodiment; the length direction of the first component 20 is at an angle to the horizontal direction, as shown in Figures 1 to 7, The length direction of the first component 20 is perpendicular to the horizontal direction. Of course, the angle between the length direction and the horizontal direction of the first component 20 may also be 85°, 80°, etc.

Wherein, the first component 20 includes a first end cap and a second end cap. The first end cap and the second end cap are arranged along the length direction of the first component 20. The first end cap is higher than the second end cap in the vertical direction. , the first tube 40 is directly connected to the second end cap or indirectly connected, that is to say, the first tube 40 is connected to the first component 20 through the second end cap.

When the heat exchange device works as an evaporator, part of the refrigerant flows from the delivery channel to multiple heat exchange channels, and then flows into the first cavity, and the other part of the refrigerant flows from the delivery channel to the second cavity. The average temperature of the refrigerant in the second cavity Higher than the average temperature of the refrigerant in the first cavity, thereby achieving the purpose of heating the refrigerant in the first cavity.

In some embodiments, the first cavity includes a first accommodation cavity and a second accommodation cavity, the first accommodation cavity and the second accommodation cavity are connected, and the first accommodation cavity is connected with the heat exchange channel of the heat exchange tube 10; at least part of the second accommodation cavity The cavity is located in the second accommodation cavity, and the part of the second cavity located in the second accommodation cavity is not connected with the second accommodation cavity.

Specifically, a partition can be provided in the first cavity to divide the first cavity into a first accommodation cavity and a second accommodation cavity, or the first assembly 20 can be divided into two parts, each part forming a cavity.

For example, the first assembly 20 includes a first pipe member 21 and a second pipe member 22. The first receiving cavity is formed in the first pipe member 21, and the second receiving cavity is formed in the second pipe member 22. The first pipe member 21 and the second pipe member 22 may be connected through a connecting pipe to achieve communication between the first accommodating cavity and the second accommodating cavity.

In some embodiments, referring to FIG. 2 , the delivery tube 30 includes a first communication hole and a second communication hole. One end of the first tube 40 is directly or indirectly connected to the delivery tube 30 at the first communication hole. The first tube 40 The other end of the second communication hole is directly or indirectly connected to the delivery pipe 30, and at least part of the first pipe 40 is located in the second accommodation cavity; the refrigerant can flow into the second cavity of the first pipe 40 from the first communication hole, And flows out from the second communication hole into the transportation channel of the transportation pipe 30 . That is to say, both ends of the first pipe 40 are connected to the delivery pipe 30. This arrangement can make the fluidity of the refrigerant in the first pipe 40 better, thereby improving the heating effect, reducing the outflow of liquid refrigerant, and improving the Reliability of the heat exchange system.

Further, referring to FIG. 3 , part of the delivery pipe 30 from the first communication hole to the second communication hole is provided with a first one-way valve 51 to facilitate the heat exchange device to realize the working status of the system in different modes. When the heat exchange device is in When the refrigerant is the evaporator, the first one-way valve 51 is turned off. When the heat exchange device is the refrigerant the condenser, the first one-way valve 51 is turned on, so that the refrigerant can pass through the second communication hole. The refrigerant in the delivery pipe 30 flows unidirectionally to the first communication hole; thus, the refrigerant in the delivery pipe 30 can only pass through the first tube 40 before flowing to the heat exchange tube 10 , so that the refrigerant in the first tube 40 The refrigerant has a good heating effect, which is conducive to reducing the outflow of liquid refrigerant in the first component and improving the heat exchange efficiency of the heat exchange system.

Further, referring to Figure 2, the first pipe 40 is provided with a second one-way valve 52. In the heat exchange system, when the heat exchange device is in the evaporator working mode, the refrigerant can flow from the first communication hole in the first The one-way flow in the tube 40 reaches the second communication hole. Therefore, in other modes, when the refrigerant flows in the reverse direction, the refrigerant does not pass through the first tube 40 .

Referring to Figure 3, the heat exchange system also includes a throttling device 60. The throttling device 60 is connected with the delivery pipe 30. Along the refrigerant flow direction in the delivery pipe 30, the throttling device 60 is located downstream of the delivery pipe 30. The throttling device 60 The refrigerant inlet channel of the heat exchange tube 10 is closer to the refrigerant outlet channel of the heat exchange tube 10 . By arranging the throttling device 60 on the delivery pipe 30, the pressure difference between the delivery pipe 30 and the heat exchange tube 10 can be further increased, thereby improving the performance of the heat exchange system.

In some embodiments, the heat exchange device further includes a second component 70 , the second component 70 includes a third wall, the second component 70 further includes a third cavity, and the wall surrounding the third cavity includes the third wall; The second end in the length direction of the heat pipe 10 is directly or indirectly connected to the second component 70 . The first cavity is connected to a plurality of heat exchange channels; both the heat exchange channel and the transport channel are connected to the third cavity. The second component 70 can collect the refrigerant delivered by the multiple inlet and outlet pipes 31 and then deliver it to each heat exchange tube 10 .

For example, a first partition 201 is provided in the first pipe 21, the first accommodation chamber includes a first sub-chamber and a second sub-chamber, and at least part of the first partition is located in the first sub-chamber and the second sub-chamber. Between them, a second partition 701 is provided in the second assembly 70. The third chamber includes a third sub-chamber and a fourth sub-chamber. At least part of the second partition 701 is located in the third sub-chamber and the fourth sub-chamber. Between the chambers, the heat exchange channel of at least one heat exchange tube 10 connects the second sub-chamber and the fourth sub-chamber, and the heat exchange channels of the remaining heat exchange tubes 10 connect the first sub-chamber and the third sub-chamber; transportation The tube 30 includes a first delivery tube 32 and a second delivery tube 33. The delivery channel of the first delivery tube 32 communicates with the second sub-chamber. The second assembly 70 includes a third sub-wall that surrounds the third sub-chamber and a third sub-chamber that surrounds the third sub-chamber. On the fourth sub-wall of the fourth sub-cavity, one end of the second delivery pipe 33 is directly or indirectly connected to part of the third sub-wall, and the other end of the second delivery pipe 33 is directly or indirectly connected to part of the fourth sub-wall. The transport channel of the tube 33 communicates with the fourth sub-chamber and the third sub-chamber.

For example, a first partition 201 is provided in the first pipe 21, and the first partition 201 divides the first accommodation chamber into two relatively sealed first sub-chambers and a second sub-chamber, and is provided in the second assembly 70. There is a second partition 701. The second partition 701 divides the third chamber into two relatively sealed third sub-chambers and a fourth sub-chamber. Both ends of at least one heat exchange tube 10 are connected to the second sub-chamber respectively. and the fourth sub-chamber, and the two ends of the remaining heat exchange tubes 10 are connected to the first sub-chamber and the third sub-chamber respectively; that is to say, in this embodiment, the heat exchange tube 10 replaces a part of the delivery pipe 30, This improves the reliability of the heat exchange device, and the first partition 201 between the first sub-chamber and the second sub-chamber can conduct heat, thereby further reducing the problem of refrigerant liquefaction in the first sub-chamber. The delivery tube 30 includes a first delivery tube 32 and a second delivery tube 33. The first delivery tube 32 is connected to the second sub-chamber. One end of the second delivery tube 33 is connected to the fourth sub-chamber, and the other end is connected to the third sub-chamber. Connected.

Further, referring to FIG. 5 , the first delivery tube 32 includes a first communication hole and a second communication hole. One end of the second cavity of the first tube 40 communicates with the first delivery tube 32 at the first communication hole. The first tube 40 The other end of the second cavity of 40 is connected with the first delivery pipe 32 at the second communication hole, and at least part of the first pipe 40 is located in the second accommodation cavity; the refrigerant can flow into the second part of the first pipe 40 from the first communication hole. into the cavity, and flows out from the second communication hole into the first delivery pipe 32 .

Further, the first delivery pipe 32 is provided with a third one-way valve 53, and the third one-way valve 53 is provided to enable the refrigerant to flow unidirectionally from the second communication hole to the first communication hole in the first delivery pipe 32; The first tube 40 is provided with a fourth one-way valve 54 to enable the refrigerant to flow in one direction from the first communication hole to the second communication hole within the first tube 40 . Therefore, the refrigerant in the first delivery pipe 32 needs to pass through the first tube 40 before being delivered to the heat exchange tube 10 , so that the refrigerant in the first tube 40 has a heating effect on the refrigerant in the second pipe 22 more stable. When the heat exchange device works as a condenser for the refrigerant, it is not necessary for the refrigerant to flow through the first tube 40 when the refrigerant flows in the reverse direction.

In some embodiments, referring to FIG. 6 , the delivery tube 30 includes a first communication hole and a second communication hole. One end of the first tube 40 is directly or indirectly connected to the delivery tube 30 at the first communication hole. The first tube 40 The other end of the second communication hole is directly or indirectly connected to the delivery pipe 30, and at least part of the first pipe 40 is located in the second accommodation cavity; the refrigerant can flow into the second cavity of the first pipe 40 from the first communication hole, And flows out from the second communication hole into the delivery pipe 30; the pipeline between the first communication hole and the second communication hole is provided with a fifth one-way valve 50, so that the refrigerant can flow from the second communication hole into the delivery pipe 30 One-way flow inside to the first communication hole. Therefore, the refrigerant in the delivery pipe 30 first flows through the first pipe 40 and then flows to the heat exchange pipe 10 to exchange heat, so that the refrigerant in the first pipe 40 has a greater heating effect on the refrigerant in the first assembly 20 Stable, it is beneficial to reduce the outflow of liquid refrigerant in the first component 20 of the heat exchange device.

In some embodiments, referring to Figure 7, the heat exchange system also includes a heat exchanger 5 and a four-way valve 4. The four-way valve 4 includes a first interface, a second interface, a third interface and a fourth interface. The first One end of the tube 40 is connected to the outlet 3 of the compressor 1, and the other end of the first tube 40 is connected to the first interface. When the heat exchange device is working as an evaporator, the first interface is connected to the third interface, The third interface is connected to an interface of the heat exchanger 5 , the fourth interface is connected to an interface of the first component 20 , and the second interface is connected to the inlet 2 of the compressor. In this embodiment, the refrigerant flowing out of the outlet 3 of the compressor 1 has a higher temperature than the refrigerant in other heat exchangers and heat exchange devices, and has less heat loss, so that the refrigerant passing through the first pipe 40 has good The heating effect is beneficial to reducing the outflow of liquid refrigerant in the first component of the heat exchange device, improving the heat exchange efficiency of the heat exchange system, and improving the reliability of the compressor.

In some embodiments, referring to FIGS. 2 and 3 , the first tube 40 enters the first cavity from the top wall of the second tube member 22 and exits the first cavity from the bottom wall of the second tube member 22 .

In some embodiments, referring to FIG. 4 , the first tube 40 enters the first cavity from the side wall or bottom wall of the second tube member 22 and exits the first cavity from the bottom wall of the second tube member 22 .

Specifically, referring to FIGS. 2 , 3 , 4 , 5 and 7 , the heating section of the first tube 40 includes a spiral tube section. Referring to FIG. 6 , the heating section of the first tube 40 includes a U-shaped tube section. Thereby, the circulation path of the first tube 40 in the first assembly 20 can be increased, thereby improving the heating effect.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " "Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inside", "Outside", "Clockwise", "Counterclockwise", "Axis", The orientations or positional relationships indicated by "radial direction", "circumferential direction", etc. are based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply the referred devices or components. Specific orientations, construction and operation in specific orientations must be included and are therefore not to be construed as limitations of the invention.

In addition, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise expressly and specifically limited.

In the present invention, unless otherwise clearly stated and limited, the terms "installation", "connection", "connection", "fixing" and other terms should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection. , or integrated; it can be mechanically connected, electrically connected or communicable with each other; it can be directly connected or indirectly connected through an intermediate medium; it can be the internal connection of two elements or the interaction between two elements, Unless otherwise expressly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In the present invention, unless otherwise expressly stated and limited, a first feature being "on" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. touch. Furthermore, the terms "above", "above" and "above" the first feature is above the second feature may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. "Below", "below" and "beneath" the first feature to the second feature may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature has a smaller horizontal height than the second feature.

As used herein, the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" mean specific features, structures, materials, or features described in connection with the embodiment or example. Features are included in at least one embodiment or example of the invention. In this specification, the schematic expressions of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification unless they are inconsistent with each other.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and should not be construed as limitations of the present invention. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present invention. The embodiments are subject to changes, modifications, substitutions and variations.

Claims (13)

1. A heat exchange device, characterized in that it includes: Heat exchange tube (10), the heat exchange tube (10) includes a heat exchange channel, and there are multiple heat exchange tubes (10); A first component (20). A plurality of heat exchange tubes (10) are arranged at intervals in the length direction of the first component (20). The first end of the heat exchange tube (10) in the length direction is connected to the first component (20). The first component (20) is directly connected or indirectly connected, the first component (20) includes a first cavity, and the first cavity is connected to a plurality of the heat exchange channels; A conveying pipe (30), the conveying pipe (30) includes a conveying channel, the conveying channel is connected with a plurality of the heat exchange channels; Inlet and outlet pipes (31), there are multiple inlet and outlet pipes (31), one inlet and outlet pipe (31) is connected to at least one heat exchange tube (10), and the inlet and outlet pipes (31) are connected to the Conveyor channel connectivity; and A first tube (40), at least part of the first tube (40) is located in the first cavity, the first tube (40) includes a second cavity, at least part of the second cavity is located in the first In the cavity, the part of the second cavity located in the first cavity is not connected with the first cavity. 2. The heat exchange device according to claim 1, characterized in that the first tube (40) is directly or indirectly connected to the delivery pipe (30), and the second cavity is connected to the delivery channel. ; One end of the first tube (40) is connected to the delivery tube (30), and the other end extends into the first cavity, and the first cavity is sealed relative to the second cavity. 3. A heat exchange system, characterized in that it includes: a compressor (1), a refrigerant and a heat exchange device as claimed in claim 1; The length direction of the first component (20) is at an angle to the horizontal direction. The first component (20) includes a first end cap and a second end cap. The first end cap and the second end cap are arranged along the The first component (20) is arranged in the length direction, the first end cap is higher than the second end cap in the vertical direction, and the first tube (40) is directly connected to the second end cap or indirect connection, When the heat exchange device works as an evaporator, part of the refrigerant flows from the delivery channel to the plurality of heat exchange channels and then flows into the first cavity, and another part of the refrigerant flows from the delivery channel Flows to the second cavity, and the average temperature of the refrigerant in the second cavity is higher than the average temperature of the refrigerant in the first cavity. 4. The heat exchange system according to claim 3, wherein the first cavity includes a first accommodation cavity and a second accommodation cavity, the first accommodation cavity and the second accommodation cavity are connected, and the The first accommodation cavity is connected with the heat exchange passage of the heat exchange tube (10); At least part of the second cavity is located in the second accommodation cavity, and the part of the second cavity located in the second accommodation cavity is not connected with the second accommodation cavity. 5. The heat exchange system according to claim 4, characterized in that the first component (20) includes a first pipe member (21) and a second pipe member (22), and the first accommodation cavity is formed in the A first pipe member (21), and the second receiving cavity is formed in the second pipe member (22). 6. The heat exchange system according to claim 5, characterized in that the delivery pipe (30) includes a first communication hole and a second communication hole, and one end of the first pipe (40) is at the first communication hole. The communication hole is directly or indirectly connected to the delivery pipe (30), and the other end of the first pipe (40) is directly or indirectly connected to the delivery pipe (30) at the second communication hole, at least partially. The first tube (40) is located in the second accommodation cavity; The refrigerant can flow into the second cavity of the first tube (40) from the first communication hole, and flow out from the second communication hole into the delivery channel of the delivery tube (30). 7. The heat exchange system according to claim 6, characterized in that the delivery pipe (30) between the first communication hole and the second communication hole is provided with a first one-way valve (51) , so that the refrigerant can flow unidirectionally from the second communication hole to the first communication hole in the delivery pipe (30); and / or, The first pipe (40) is provided with a second one-way valve (52) so that the refrigerant can flow from the first communication hole to the third pipe in one direction. Two connecting holes. 8. The heat exchange system according to claim 6, further comprising a throttling device (60), the throttling device (60) being in communication with the delivery pipe (30), along the delivery pipe (30). 30), the throttling device (60) is located downstream of the delivery pipe (30), and the throttling device (60) is smaller than the refrigerant in the heat exchange tube (10). The outlet channel is closer to the refrigerant inlet channel of the heat exchange tube (10). 9. The heat exchange system of claim 5, further comprising a second component (70), the second component (70) comprising a third wall, the second component (70) further comprising a third wall. Three chambers, the wall surrounding the third chamber includes the third wall; The second end of the heat exchange tube (10) in the length direction is directly or indirectly connected to the second component (70), and the first cavity is connected to a plurality of the heat exchange channels; the heat exchange channels and the transport channel are both connected to the third chamber, a first partition (201) is provided in the first pipe (21), and the first accommodation chamber includes a first sub-chamber and a second sub-chamber. , at least part of the first partition is located between the first sub-chamber and the second sub-chamber, a second partition (701) is provided in the second assembly (70), and the third The three chambers include a third sub-chamber and the fourth sub-chamber, at least part of the second partition (701) is located between the third sub-chamber and the fourth sub-chamber, at least one of the The heat exchange channel of the heat exchange tube (10) communicates with the second sub-chamber and the fourth sub-chamber, and the heat exchange channels of the remaining heat exchange tubes (10) communicate with the first sub-chamber. sub-chamber and said third sub-chamber; The conveying pipe (30) includes a first conveying pipe (32) and a second conveying pipe (33). The conveying channel of the first conveying pipe (32) communicates with the second sub-chamber. The second component (70) includes a third sub-wall that surrounds the third sub-chamber and a fourth sub-wall that surrounds the fourth sub-chamber. One end of the second delivery pipe (33) is connected to a portion of the third sub-chamber. The sub-walls are directly or indirectly connected, the other end of the second conveying pipe (33) is directly or indirectly connected to part of the fourth sub-wall, and the conveying channel of the second conveying pipe (33) is connected to the fourth sub-wall. chamber and the third sub-chamber. 10. The heat exchange system according to claim 9, characterized in that the first delivery pipe (32) includes a first communication hole and a second communication hole, and one end of the first pipe (40) is at the The first communication hole is connected to the first transportation pipe (32), and the other end of the first pipe (40) is connected to the first transportation pipe (32) at the second communication hole, at least part of which is connected to the first transportation pipe (32). The first tube (40) is located in the second accommodation cavity; The refrigerant can flow into the second cavity of the first tube (40) from the first communication hole, and flow out from the second communication hole into the first delivery pipe (32). 11. The heat exchange system according to claim 10, characterized in that the first delivery pipe (32) is provided with a third one-way valve (53), and the third one-way valve (53) is configured to enable The refrigerant can flow unidirectionally from the second communication hole to the first communication hole in the first delivery pipe (32); The first pipe (40) is provided with a fourth one-way valve (54) so that the refrigerant can flow from the first communication hole to the third pipe in one direction. Two connecting holes. 12. The heat exchange system according to claim 3, characterized in that the delivery pipe (30) includes a first communication hole and a second communication hole, and one end of the first pipe (40) is at the first communication hole. The communication hole is directly or indirectly connected to the delivery pipe (30), and the other end of the first pipe (40) is directly or indirectly connected to the delivery pipe (30) at the second communication hole, at least partially. The first tube (40) is located in the second accommodation cavity; The refrigerant can flow into the second cavity of the first tube (40) from the first communication hole, and flow out from the second communication hole into the delivery pipe (30); A fifth one-way valve (50) is provided in the pipeline between the first communication hole and the second communication hole, so that the refrigerant can flow from the second communication hole to the delivery pipe (30 ) flows in one direction to the first communication hole. 13. The heat exchange system according to any one of claims 3 to 5, characterized in that the heat exchange system includes a four-way valve (4) and a heat exchanger (5), and the four-way valve (4) It includes a first interface, a second interface, a third interface and a fourth interface. One end of the first pipe (40) is connected to the outlet of the compressor, and the other end of the first pipe (40) is connected to the outlet of the compressor. The first interface is connected to the first interface. When the heat exchange device is working as an evaporator, the first interface is connected to the third interface. The third interface is connected to an interface of the heat exchanger. The third interface is connected to an interface of the heat exchanger. Four interfaces are connected to one interface of the first component (20), and the second interface is connected to the inlet of the compressor.