Header component, variable shunting heat exchanger and variable shunting heat exchange module

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a header component which comprises a header pipe section. The liquid inlet pipe opening is communicated with the collecting pipe section, and a refrigerant flows in or out of the liquid inlet pipe opening; the first liquid outlet branch pipe is communicated with the collecting pipe section; the liquid inlet dispersing pipe section is communicated between the liquid inlet pipe opening and the first liquid outlet branch pipe, dispersing protrusions are arranged on the inner wall of at least part of the pipe section of the liquid inlet dispersing pipe section, and the dispersing protrusions disperse refrigerants flowing in from the liquid inlet pipe opening and then flow out from the first liquid outlet branch pipe. According to the header component provided by the utility model, the gas-liquid mixing uniformity of the refrigerant flowing into the first liquid outlet branch pipe is improved. The invention further provides a variable shunting heat exchanger and a variable shunting heat exchange module.

Description

Technical Field

[0001] The present application relates to the technical field of heat exchangers, for example, a header member, a variable flow-dividing heat exchanger, and a variable flow-dividing heat exchange module are involved. Background Art

[0002] Currently, an air conditioner generally consists of a compressor, an outdoor heat exchanger, a throttling device, a four-way valve, and an indoor heat exchanger to form a refrigerant circulation circuit, and the four-way valve is used to change the flow direction of the refrigerant in the refrigerant circulation circuit, so as to respectively realize the refrigeration function and the heating function of the air conditioner.

[0003] In the refrigeration flow direction, the refrigerant in the heat exchange tubes of the outdoor heat exchanger is in a high-temperature and high-pressure area, insensitive to pressure drop, and the heat transfer performance is mainly affected by the heat transfer coefficient. Therefore, the heat exchange tubes are suitable for using a smaller number of branches to accelerate the circulation and increase the heat transfer coefficient; while in the heating flow direction, the refrigerant in the heat exchange tubes of the outdoor heat exchanger is in a low-temperature and low-pressure area, and the heat transfer performance is jointly restricted by the heat transfer coefficient and the pressure drop. Therefore, the heat exchange tubes are suitable for using a larger number of branches to greatly reduce the pressure drop while ensuring the heat transfer coefficient and improving the system pressure. The existing variable flow-dividing heat exchanger can adjust the connection mode of the heat exchange branches of the heat exchanger according to the operating mode of the air conditioner, so that the refrigerant flow path of the heat exchanger conforms to the operating mode of the air conditioner.

[0004] Among them, the header is a common component for connecting different heat exchange branches of the heat exchanger, and can divide the refrigerant flowing in from the liquid inlet through the header, so that the refrigerant can flow to different heat exchange branches of the heat exchanger respectively.

[0005] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0006] The header of the existing heat exchanger has an unstable liquid distribution phenomenon, which affects the heat exchange effect of the heat exchanger.

[0007] It should be noted that the information disclosed in the above background art 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 those of ordinary skill in the art. Summary of the Utility Model

[0008] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important elements or delineate the protection scope of these embodiments, but rather serves as a preamble to the subsequent detailed description.

[0009] The embodiments of the present disclosure provide a header member, a variable flow-dividing heat exchanger, and a variable flow-dividing heat exchange module to solve the problem that the liquid distribution of the header member of the heat exchanger is unstable, thereby affecting the heat exchange effect of the heat exchanger.

[0010] In some embodiments, the header member includes: a manifold section; an inlet pipe orifice connected to the manifold section, through which the refrigerant flows in or out; a first outlet branch pipe connected to the manifold section; and an inlet discrete pipe section connected between the inlet pipe orifice and the first outlet branch pipe. At least a portion of the inner wall of the inlet discrete pipe section is provided with discrete protrusions, which discrete the refrigerant flowing in from the inlet pipe orifice and then flow out from the first outlet branch pipe.

[0011] In some alternative embodiments, the discrete protrusions are provided on the discrete separation pipe section of the inlet discrete pipe section, and the first outlet branch pipe is provided on the first outlet pipe section of the manifold section. The angle between the discrete separation pipe section and the first outlet pipe section is less than or equal to a first preset angle.

[0012] In some alternative embodiments, the first preset angle is less than or equal to 30°.

[0013] In some alternative embodiments, the discrete protrusions are arranged in a spiral shape, and the spiral discrete protrusions are arranged circumferentially along the inner wall of the inlet discrete pipe section.

[0014] In some alternative embodiments, the distance between adjacent protrusion segments of the spiral discrete protrusions is less than or equal to a first preset distance.

[0015] Optionally, the first preset distance is less than or equal to 8 mm.

[0016] In some alternative embodiments, the setting length of the spiral discrete protrusions on the inner wall of the inlet discrete pipe section is greater than or equal to a first preset length.

[0017] Optionally, the first preset length is greater than or equal to 5 mm.

[0018] In some alternative embodiments, the header member further includes: a liquid pipe conduction component connected to the manifold section, the liquid pipe conduction component including a liquid valve conduction inlet end and a liquid valve conduction outlet end; and a second outlet branch pipe and a third outlet branch pipe connected to one side of the liquid valve conduction outlet end of the liquid pipe conduction component of the manifold section, wherein the first outlet branch pipe is connected to one side of the liquid valve conduction inlet end of the liquid pipe conduction component of the manifold section.

[0019] In some embodiments, the variable flow splitting heat exchanger includes: the header member as described above; and a plurality of heat exchange branches, each heat exchange branch being connected to the manifold section of the header member through an outlet branch pipe.

[0020] In some alternative embodiments, the variable flow-dividing heat exchanger further includes a gas pipe component. The gas pipe component includes a gas collecting pipe section, a gas pipe conduction component, a first gas pipe branch, a second gas pipe branch, and a third gas pipe branch. The gas pipe conduction component is connected to the gas collecting pipe section, and the gas pipe conduction component includes a gas valve conduction inlet end and a gas valve conduction outlet end. The first gas pipe branch is connected to one side of the gas valve conduction outlet end of the gas collecting pipe section, and the second gas pipe branch and the third gas pipe branch are connected to one side of the gas valve conduction inlet end of the gas collecting pipe section.

[0021] Optionally, the multiple heat exchange branches include a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch. The first heat exchange branch is connected between the first liquid outlet branch and the third gas pipe branch, the second heat exchange branch is connected between the second liquid outlet branch and the second gas pipe branch, and the third heat exchange branch is connected between the third liquid outlet branch and the first gas pipe branch.

[0022] In some embodiments, the variable flow-dividing heat exchange module includes: a first variable flow-dividing heat exchanger; and a second variable flow-dividing heat exchanger disposed below the first variable flow-dividing heat exchanger, where at least one of the first variable flow-dividing heat exchanger and the second variable flow-dividing heat exchanger is the variable flow-dividing heat exchanger as described above.

[0023] The header member, variable flow-dividing heat exchanger, and variable flow-dividing heat exchange module provided by the embodiments of the present disclosure can achieve the following technical effects:

[0024] The header member provided by the embodiments of the present disclosure includes a liquid collecting pipe section, a liquid inlet pipe orifice, a first liquid outlet branch, and a liquid inlet discrete pipe section. The refrigerant flows into or out of the liquid inlet pipe orifice of the header member. The liquid inlet discrete pipe section is connected between the liquid inlet pipe orifice and the first liquid outlet branch, and at least part of the inner wall of the liquid inlet discrete pipe section is provided with discrete protrusions. The discrete protrusions disperse the refrigerant flowing in from the liquid inlet pipe orifice and then flow out from the first liquid outlet branch.

[0025] It can be seen that in the header member provided by the embodiments of the present disclosure, a liquid inlet discrete pipe section is provided between the first liquid outlet branch and the liquid inlet pipe orifice, and the inner wall of the liquid inlet discrete pipe section is provided with discrete protrusions. The setting of the discrete protrusions disperses the refrigerant flowing in from the liquid inlet pipe orifice, improves the mixing degree of the gas-liquid two-phase refrigerant, and further improves the stability of the amount of refrigerant flowing out from the first liquid outlet branch and the heat exchange stability of the heat exchanger.

[0026] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. Description of the Drawings

[0027] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and wherein:

[0028] Figure 1 is a schematic structural diagram of a header member provided by an embodiment of the present disclosure;

[0029] Figure 2 is Figure 1 an enlarged view of a selected part in;

[0030] Figure 3 is a schematic structural diagram of another header member provided by an embodiment of the present disclosure;

[0031] Figure 4 is a schematic structural diagram of a variable flow split heat exchanger provided by an embodiment of the present disclosure;

[0032] Figure 5 is a refrigerant flow path diagram when the variable flow split heat exchanger provided by an embodiment of the present disclosure is used as a condenser;

[0033] Figure 6 is a refrigerant flow path diagram when the variable flow split heat exchanger provided by an embodiment of the present disclosure is used as an evaporator;

[0034] Figure 7 is a schematic structural diagram of a variable flow split heat exchange module provided by an embodiment of the present disclosure.

[0035] Reference numerals:

[0036] 1: gas collecting main pipe;

[0037] 100: manifold pipe section; 101: liquid inlet pipe orifice; 102: one side of the liquid valve conducting outlet end; 103: one side of the liquid valve conducting inlet end; 110: liquid inlet discrete pipe section; 111: discrete protrusion; 120: first liquid outlet branch pipe; 130: liquid pipe conducting component; 140: second liquid outlet branch pipe; 150: third liquid outlet branch pipe;

[0038] 200: gas collecting pipe section; 210: gas inlet pipe section; 220: gas pipe conducting component; 230: first gas pipe branch; 240: second gas pipe branch; 250: third gas pipe branch; 201: one side of the gas valve conducting outlet end; 202: one side of the gas valve conducting inlet end;

[0039] 310: first heat exchange branch; 320: second heat exchange branch; 330: third heat exchange branch;

[0040] 4: liquid distribution element. Detailed implementation manners

[0041] In order to understand the features and technical content of the embodiments of the present disclosure in more detail, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are only for reference and illustration purposes and are not used to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be shown in a simplified manner to simplify the drawings.

[0042] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to implement the embodiments of the present disclosure described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion.

[0043] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their implementations, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. Moreover, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. 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.

[0044] In addition, the terms "arranged", "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 directly connected, or indirectly connected through an intermediate medium, or there is internal communication 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.

[0045] Unless otherwise specified, the term "plurality" means two or more.

[0046] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.

[0047] The term "and / or" is an associative relationship describing objects and indicates that three relationships can exist. For example, A and / or B means: A or B, or, A and B.

[0048] It should be noted that, without conflict, the embodiments in the present disclosure and the features in the embodiments may be combined with each other.

[0049] The embodiments of the present disclosure provide a header member. Optionally, the header member provided by the embodiments of the present disclosure may be used as the liquid pipe structure of a heat exchanger.

[0050] The header member provided by the embodiments of the present disclosure includes a header pipe section 100, a liquid inlet pipe orifice 101, a first liquid outlet branch pipe 120, and a liquid inlet discrete pipe section 110. The liquid inlet pipe orifice 101 is communicated with the header pipe section 100, and the refrigerant flows in or out from the liquid inlet pipe orifice 101; the first liquid outlet branch pipe 120 is communicated with the header pipe section 100; the liquid inlet discrete pipe section 110 is communicated between the liquid inlet pipe orifice 101 and the first liquid outlet branch pipe 120. Wherein, discrete protrusions 111 are arranged on the inner wall of at least part of the pipe section of the liquid inlet discrete pipe section 110, and the discrete protrusions 111 discrete the refrigerant flowing in from the liquid inlet pipe orifice 101 and then flow out from the first liquid outlet branch pipe 120.

[0051] When the variable flow heat exchanger is used as an evaporator, the gas-liquid two-phase refrigerant flows into the liquid inlet pipe orifice 101 of the header member. After entering the liquid, it will experience the centrifugal force of part of the pipe section, resulting in the liquid refrigerant in the gas-liquid two-phase refrigerant accumulating on the outer side of the curved wall and the gaseous refrigerant accumulating on the inner side of the curved wall, forming a non-uniformly mixed gas-liquid two-phase state. The most obvious impact is on the first liquid outlet branch pipe 120 at the bottom. The first liquid outlet branch pipe 120 will have a non-ideal gas-liquid volume ratio, and even the phenomenon of inconsistent flow distribution under the same working conditions, affecting the heat exchange effect of the heat exchanger.

[0052] In the header member provided by the embodiments of the present disclosure, a liquid inlet discrete pipe section 110 is arranged between the liquid inlet pipe orifice 101 and the first liquid outlet branch pipe 120, and discrete protrusions 111 are arranged on the inner wall of the liquid inlet discrete pipe section 110. When the gas-liquid two-phase refrigerant flows through the discrete protrusions 111, the liquid refrigerant is uniformly maintained between the protrusion sections in the circumferential direction, so that the liquid refrigerant adheres to the circumferential direction of the pipe wall. In this way, the mixing effect of the gas-liquid two-phase refrigerant is improved, the phenomenon of refrigerant bias towards the wall is solved, the stability of the amount of refrigerant flowing into the first liquid outlet branch pipe 120 is improved, and further the heat exchange stability and heat exchange efficiency of the heat exchanger are improved.

[0053] Optionally, the discrete liquid distribution pipe section provided with the discrete protrusions 111 in the liquid inlet discrete pipe section 110 is arranged below the first liquid outlet branch pipe 120, so as to improve the mixing degree of the gas-liquid two-phase refrigerant.

[0054] Optionally, in the fluid flow path, the liquid inlet pipe orifice 101 is arranged upstream of the fluid flow path, the first liquid outlet branch pipe 120 is arranged downstream of the fluid flow path, and the liquid inlet discrete pipe segment 110 is arranged in the fluid path before flowing into the first liquid outlet branch pipe 120.

[0055] Optionally, the setting direction of the header member is as Figure 1 shown, and the fluid flow direction in the liquid inlet discrete pipe segment 110 is from bottom to top.

[0056] Optionally, the liquid inlet discrete pipe segment 110 includes a discrete separation pipe segment and a liquid inlet centrifugal pipe segment. Among them, the inner wall of the discrete separation pipe segment is provided with discrete protrusions 111, and the discrete separation pipe segment is arranged closer to the first liquid outlet branch pipe 120 relative to the liquid inlet centrifugal pipe segment.

[0057] The liquid inlet centrifugal pipe segment is arranged between the liquid inlet pipe orifice 101 and the discrete separation pipe segment. Optionally, the liquid inlet centrifugal pipe segment can be a U-shaped pipe. The refrigerant flows in the U-shaped liquid inlet centrifugal pipe segment, which has a certain centrifugal and accelerating effect, which is beneficial to forming a certain accelerating effect on the refrigerant flowing in from the liquid inlet pipe orifice 101, and improves the refrigerant distribution effect of the header pipe segment 100 on different liquid outlet branch pipes.

[0058] Optionally, the discrete protrusions 111 are arranged on the discrete separation pipe segment of the liquid inlet discrete pipe segment 110, and the first liquid outlet branch pipe 120 is arranged on the first liquid outlet pipe segment of the header pipe segment 100, wherein the included angle between the discrete separation pipe segment and the first liquid outlet pipe segment is less than or equal to a first preset included angle.

[0059] It can be understood that the discrete separation pipe segment is the pipe segment of the liquid inlet discrete pipe segment 110 with discrete protrusions 111 provided on its inner wall, and the first liquid outlet pipe segment is the pipe segment of the header pipe segment 100 where the first liquid outlet branch pipe 120 is provided. If the included angle between the discrete separation pipe segment and the first liquid outlet pipe segment is too large, the refrigerant after being dispersed and mixed by the discrete separation pipe segment may flow out from the first liquid outlet branch pipe 120 after experiencing another centrifugal action. In this way, the dispersion effect of the discrete separation pipe segment on the refrigerant is reduced.

[0060] In the embodiments of the present disclosure, the included angle between the discrete flow dividing pipe segment and the first liquid outlet pipe segment is less than or equal to the first preset included angle. In this way, the refrigerant that has been evenly dispersed and mixed by the discrete separation pipe segment can flow out smoothly through the first liquid outlet pipe segment without having to flow through a pipe segment with a centrifugal or accelerating effect, ensuring the dispersion effect of the discrete flow dividing pipe segment on the refrigerant.

[0061] Optionally, the first preset included angle is less than or equal to 30°. For example, the discrete separation pipe segment is a vertical pipe segment, and the first liquid outlet pipe segment is a vertical pipe segment. At this time, the discrete separation pipe segment and the first liquid outlet pipe segment are arranged in parallel, and the included angle between them is 0°. As Figure 1 shown.

[0062] Optionally, the discrete protrusions 111 are arranged in a spiral shape, and the spiral discrete protrusions 111 are arranged circumferentially along the inner wall of the liquid inlet discrete pipe section 110.

[0063] The discrete protrusions 111 are arranged circumferentially along the inner wall of the liquid inlet discrete pipe section 110 in a spiral shape. In this way, the continuous spiral discrete protrusions 111 enable the liquid refrigerant to disperse circumferentially along the spiral discrete protrusions 111 on the inner wall, improving the effect of breaking up the refrigerant. Moreover, while the spiral discrete protrusions 111 play a role in breaking up the gas-liquid two-phase refrigerant, they do not form a large blocking effect on the flow of the refrigerant.

[0064] Optionally, starting from the inner wall of the liquid inlet discrete pipe section 110, the protrusion height of the discrete protrusions 111 should not be too large, otherwise it will affect the flow of the refrigerant in the header component. Optionally, the protrusion height of the discrete protrusions 111 is 1-3 mm.

[0065] Optionally, the distance between adjacent two protrusion segments of the spiral discrete protrusions 111 is less than or equal to a first preset distance, where the first preset distance is less than or equal to 8 mm.

[0066] The distance h1 between adjacent two protrusion segments of the discrete protrusions 111 is less than or equal to the first preset distance. In this way, the continuous breaking-up effect of the spiral discrete protrusions 111 on the gas-liquid two-phase refrigerant is improved. Optionally, the first preset distance is less than or equal to 8 mm. For example, in the spiral discrete protrusions 111, the distance between adjacent two protrusion segments is 3 mm, 4 mm, 5 mm or 6 mm. As Figure 2 shown.

[0067] Optionally, the setting length of the spiral discrete protrusions 111 on the inner wall of the liquid inlet discrete pipe section 110 is greater than or equal to a first preset length, where the first preset length is greater than or equal to 5 mm.

[0068] The setting length h2 of the spiral discrete protrusions 111 on the inner wall of the liquid inlet discrete pipe section 110 should not be too small, otherwise the discrete protrusions 111 cannot fully play the role of breaking up the gas-liquid two-phase refrigerant. Optionally, the first preset length is greater than or equal to 5 mm. For example, the setting length h2 of the spiral discrete protrusions 111 on the inner wall of the liquid inlet discrete pipe section 110 can be 5 mm, 7 mm, 8 mm or 10 mm. As Figure 2 shown.

[0069] Optionally, the header member further includes a liquid pipe conduction component 130, a second liquid outlet branch pipe 140, and a third liquid outlet branch pipe 150. The liquid pipe conduction component 130 is connected to the header pipe section 100. The liquid pipe conduction component 130 includes a liquid valve conduction inlet end and a liquid valve conduction outlet end; the second liquid outlet branch pipe 140 and the third liquid outlet branch pipe 150 are connected to one side 102 of the liquid valve conduction outlet end of the liquid pipe conduction component 130 of the header pipe section 100. Among them, the first liquid outlet branch pipe 120 is connected to one side 103 of the liquid valve conduction inlet end of the liquid pipe conduction component 130 of the header pipe section 100.

[0070] The header pipe section 100 of the header member is branched through the first liquid outlet branch pipe 120, the second liquid outlet branch pipe 140, and the third liquid outlet branch pipe 150. Optionally, the second liquid outlet branch pipe 140 and the third liquid outlet branch pipe 150 are combined into a Y-shaped branch pipe structure. In this way, the liquid distribution uniformity of the second liquid outlet branch pipe 140 and the third liquid outlet branch pipe 150 is improved.

[0071] Optionally, the second liquid outlet branch pipe 140 and the third liquid outlet branch pipe 150 are arranged on the upper pipe section of the header pipe section 100, and the first liquid outlet branch pipe 120 is arranged on the lower pipe section of the header pipe section 100. Among them, the upper pipe section can also be understood as the pipe section on one side 102 of the liquid valve conduction outlet end of the header pipe section 100, and the lower pipe section can also be understood as the pipe section on one side 103 of the liquid valve conduction inlet end of the header pipe section 100.

[0072] Optionally, the header member is integrally formed. The present disclosure embodiment does not overly limit the specific forming method of the header member.

[0073] The present disclosure embodiment also provides a variable flow-dividing heat exchanger.

[0074] Optionally, the variable flow-dividing heat exchanger includes the aforementioned header member and multiple heat exchange branches, and each heat exchange branch is connected to the header pipe section of the header member through a liquid outlet branch pipe.

[0075] It can be understood that when the air conditioner operates in the cooling mode and the heating mode, the flow paths of the refrigerant in the variable flow-dividing heat exchanger are different. When the variable flow-dividing heat exchanger is used as an evaporator, the multiple heat exchange branches are connected in parallel, and when the variable flow-dividing heat exchanger is used as a condenser, the multiple heat exchange branches are connected in series.

[0076] Optionally, the variable flow split heat exchanger further includes a gas pipe component. The gas pipe component includes a gas collecting pipe section 200, a gas pipe conduction component 220, a first gas pipe branch 230, a second gas pipe branch 240, and a third gas pipe branch 250. The gas pipe conduction component 220 is connected to the gas collecting pipe section 200, and the gas pipe conduction component 220 includes a gas valve conduction inlet end and a gas valve conduction outlet end. The first gas pipe branch 230 is connected to one side 201 of the gas valve conduction outlet end of the gas collecting pipe section 200. The second gas pipe branch 240 and the third gas pipe branch 250 are connected to one side 202 of the gas valve conduction inlet end of the gas collecting pipe section 200. The multiple heat exchange branches include a first heat exchange branch 310, a second heat exchange branch 320, and a third heat exchange branch 330. Among them, the first heat exchange branch 310 is connected between the first liquid outlet branch 120 and the third gas pipe branch 250. The second heat exchange branch 320 is connected between the second liquid outlet branch 140 and the second gas pipe branch 240. The third heat exchange branch 330 is connected between the third liquid outlet branch 150 and the first gas pipe branch 230.

[0077] Optionally, the gas pipe conduction component 220 includes a check valve or a solenoid valve, and its conduction direction is unidirectional conduction from the gas valve conduction inlet end to the gas valve conduction outlet end. Similarly, the aforementioned liquid pipe conduction component 130 also includes a check valve or a solenoid valve, and its conduction direction is unidirectional conduction from the liquid valve conduction inlet end to the liquid valve conduction outlet end.

[0078] In this way, a complete variable flow split heat exchange structure can be formed, enabling the variable flow split heat exchanger to have different flow paths under refrigeration and heating conditions, better balancing the different requirements for the refrigerant flow path under refrigeration and heating conditions, and improving the heat exchange efficiency of the heat exchanger under refrigeration and heating conditions.

[0079] Optionally, the first heat exchange branch 310, the second heat exchange branch 320, and the third heat exchange branch 330 are arranged in sequence from bottom to top in the vertical direction.

[0080] Combined Figure 6 As shown, when the variable flow split heat exchanger is used as an evaporator, the refrigerant enters the manifold section 100 through the liquid inlet pipe orifice 101. Under the action of pressure, the liquid pipe conduction component 130 is conducted. At this time, the refrigerant simultaneously enters the first liquid outlet branch 120, the second liquid outlet branch 140, and the third liquid outlet branch 150, and passes through the first heat exchange branch 310, the second heat exchange branch 320, and the third heat exchange branch 330 in parallel, and then enters the gas collecting pipe section 200 through the first gas pipe branch 230, the second gas pipe branch 240, and the third gas pipe branch 250 respectively. At this time, the gas pipe conduction component 220 in the gas collecting pipe section 200 is also in a conductive state. After the refrigerant returns in the gas collecting pipe section 200, it is discharged through the gas inlet pipe section 210. Heat exchange can be carried out in three parallel heat exchange branches, which can greatly reduce the pressure drop while ensuring the heat transfer coefficient, thereby increasing the system pressure and improving the low-temperature heating capacity.

[0081] Combined Figure 5 As shown, when the variable flow - splitting heat exchanger is used as a condenser, the refrigerant enters the header pipe section 200 through the inlet pipe section 210. At this time, under the pressure of the refrigerant, the gas - pipe conduction component 220 is in a non - conducting state. After the refrigerant enters the upper half of the header pipe section 200 where the gas - pipe conduction component 220 is located, it flows into the third heat - exchange branch 330 through the first gas - pipe branch 230, exchanges heat, and then flows into the manifold pipe section 100 through the third liquid - outlet branch 150. At this time, the liquid - pipe conduction component 130 in the manifold pipe section 100 is in a non - conducting state. The refrigerant continues to enter the second liquid - outlet branch 140, flows into the second heat - exchange branch 320 to exchange heat, and then flows into the lower half part of the header pipe section 200 below the gas - pipe conduction component 220 through the second gas - pipe branch 240. It continues to flow into the third gas - pipe branch 250 from this part, exchanges heat through the first heat - exchange branch 310, and then flows into the part of the manifold pipe section 100 below the liquid - pipe conduction component 130 through the first liquid - outlet branch 120, and finally flows out from the liquid - inlet nozzle 101, thus forming an entire heat - exchange branch that connects the first heat - exchange branch 310, the second heat - exchange branch 320, and the third heat - exchange branch 330 in series. Furthermore, it can accelerate the cycle, increase the heat - transfer coefficient, and thus improve the high - temperature refrigerating capacity.

[0082] The embodiment of the present disclosure also provides a variable flow - splitting heat - exchange module.

[0083] Optionally, the variable flow - splitting heat - exchange module includes a first variable flow - splitting heat exchanger and a second variable flow - splitting heat exchanger. The second variable flow - splitting heat exchanger is arranged below the first variable flow - splitting heat exchanger. Among them, at least one of the first variable flow - splitting heat exchanger and the second variable flow - splitting heat exchanger is the variable flow - splitting heat exchanger as described above.

[0084] In the variable flow - splitting heat - exchange module provided by the embodiment of the present disclosure, at least one of the first variable flow - splitting heat exchanger and the second variable flow - splitting heat exchanger is provided with the aforementioned header component. The header component is provided with an inlet liquid - discrete pipe section, which improves the liquid - splitting uniformity and stability of the variable flow - splitting heat - exchange module.

[0085] Optionally, the variable flow - splitting heat - exchange module further includes a gas - collecting main pipe 1. The gas - collecting main pipe 1 is respectively connected and communicated with the header pipe section of the first variable flow - splitting heat exchanger and the header pipe section of the second variable flow - splitting heat exchanger.

[0086] Optionally, the variable flow - splitting heat - exchange module further includes a liquid - splitting element 4. The liquid - splitting element 4 is respectively connected and communicated with the manifold pipe section of the first variable flow - splitting heat exchanger and the manifold pipe section of the second variable flow - splitting heat exchanger.

[0087] The above description and the accompanying drawings sufficiently illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. Embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A header member, characterized in that, Comprising: A manifold pipe section; An inlet liquid pipe orifice, which is connected and communicated with the manifold pipe section, and refrigerant flows into or out of through the inlet liquid pipe orifice; A first outlet liquid branch pipe, which is connected and communicated with the manifold pipe section; and, An inlet liquid dispersion pipe section, which is communicated between the inlet liquid pipe orifice and the first outlet liquid branch pipe, wherein, discrete protrusions are arranged on the inner wall of at least part of the pipe section of the inlet liquid dispersion pipe section, and the discrete protrusions disperse the refrigerant flowing in from the inlet liquid pipe orifice and then flow out from the first outlet liquid branch pipe.

2. The header member according to claim 1, wherein the discrete protrusions are arranged on the discrete separation pipe section of the inlet liquid dispersion pipe section, and the first outlet liquid branch pipe is arranged on the first outlet pipe section of the manifold pipe section, wherein, the included angle between the discrete separation pipe section and the first outlet pipe section is less than or equal to a first preset included angle.

3. The header member according to claim 2, wherein the first preset included angle is less than or equal to 30°.

4. The header member according to claim 1, wherein the discrete protrusions are arranged in a spiral shape, wherein, the spiral discrete protrusions are arranged circumferentially along the inner wall of the inlet liquid dispersion pipe section.

5. The header member according to claim 4, wherein the distance between adjacent protrusion segments of the spiral discrete protrusions is less than or equal to a first preset distance, wherein, the first preset distance is less than or equal to 8 mm.

6. The header member according to claim 4, wherein the set length of the spiral discrete protrusions on the inner wall of the inlet liquid dispersion pipe section is greater than or equal to a first preset length, wherein, the first preset length is greater than or equal to 5 mm.

7. The header member according to any one of claims 1 to 6, characterized in that, Further comprising: A liquid pipe conduction component, which is communicated with the manifold pipe section, and the liquid pipe conduction component includes a liquid valve conduction inlet end and a liquid valve conduction outlet end; and, a second outlet liquid branch pipe and a third outlet liquid branch pipe, which are communicated with one side of the liquid valve conduction outlet end of the liquid pipe conduction component of the manifold pipe section, wherein, the first outlet liquid branch pipe is communicated with one side of the liquid valve conduction inlet end of the liquid pipe conduction component of the manifold pipe section.

8. A variable flow-dividing heat exchanger, characterized in that, Comprising: The header member according to any one of claims 1 to 7; and, Multiple heat exchange branches, and each heat exchange branch is connected and communicated with the manifold pipe section of the header member through an outlet liquid branch pipe.

9. The variable flow dividing heat exchanger according to claim 8, wherein Further comprising a gas pipe component, wherein, the gas pipe component includes a gas collecting pipe section, a gas pipe conduction component, a first gas pipe branch, a second gas pipe branch and a third gas pipe branch, the gas pipe conduction component is communicated with the gas collecting pipe section, and the gas pipe conduction component includes a gas valve conduction inlet end and a gas valve conduction outlet end, the first gas pipe branch is communicated with one side of the gas valve conduction outlet end of the gas collecting pipe section, and the second gas pipe branch and the third gas pipe branch are communicated with one side of the gas valve conduction inlet end of the gas collecting pipe section, the multiple heat exchange branches include a first heat exchange branch, a second heat exchange branch and a third heat exchange branch, wherein, the first heat exchange branch is communicated between the first outlet liquid branch pipe and the third gas pipe branch, the second heat exchange branch is communicated between the second outlet liquid branch pipe and the second gas pipe branch, and the third heat exchange branch is communicated between the third outlet liquid branch pipe and the first gas pipe branch.

10. A variable flow splitting heat exchange module, characterized in that, Comprising: A first variable flow splitting heat exchanger; and, A second variable flow splitting heat exchanger, which is arranged below the first variable flow splitting heat exchanger, wherein, at least one of the first variable flow splitting heat exchanger and the second variable flow splitting heat exchanger is a variable flow splitting heat exchanger according to claim 8 or 9.

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