Header part and variable split-flow heat exchanger

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 section is communicated with the collecting pipe section; the first liquid outlet branch pipe is communicated with the collecting pipe section; and the dispersing pore plate is arranged in a flowing path of fluid flowing in from the liquid inlet pipe section and flowing out from the first liquid outlet branch pipe, so that the fluid flowing out from the liquid inlet pipe section is dispersed and then flows 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 the variable flow dividing heat exchanger.

Description

Technical Field

[0001] This application relates to the technical field of heat exchangers, for example, to a header component and a variable flow - splitting heat exchanger. Background Art

[0002] A header is a common component that connects different heat - exchange branches of a heat exchanger. It can split the refrigerant flowing in from the liquid inlet, so that the refrigerant can flow to different heat - exchange branches of the heat exchanger respectively.

[0003] For example, a heat exchanger includes a first heat - exchange branch, a second heat - exchange branch, and a third heat - exchange branch arranged in parallel. The header can distribute the refrigerant to the three heat - exchange branches respectively to enable the heat exchanger to achieve heat exchange.

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

[0005] The header of the existing heat exchanger has an unstable liquid - splitting phenomenon, which affects the heat - exchange effect of the heat exchanger.

[0006] 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 this application. Therefore, it may include information that does not constitute the prior art known to those of ordinary skill in the art. Utility Model Content

[0007] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. This summary is not a general review, nor is it intended to identify key / important elements or delineate the protection scope of these embodiments. Instead, it serves as a preface to the subsequent detailed description.

[0008] The embodiments of the present disclosure provide a header component and a variable flow - splitting heat exchanger to solve the problem that the liquid - splitting of the header component of the heat exchanger is unstable, thereby affecting the heat - exchange effect of the heat exchanger.

[0009] In some embodiments, the header component includes: a header pipe section; an inlet pipe section connected to the header pipe section; a first outlet branch pipe connected to the header pipe section; and a discrete orifice plate disposed in the fluid flow path flowing in from the inlet pipe section and flowing out from the first outlet branch pipe to discrete the fluid flowing out from the inlet pipe section and then flow out from the first outlet branch pipe.

[0010] In some alternative embodiments, the header component includes a first discrete position where a discrete orifice plate is provided, and the flow direction of the fluid at the first discrete position is a first direction, wherein the discrete orifice plate is arranged at a non - right - angle to the first direction.

[0011] In some alternative embodiments, the liquid inlet pipe section includes a separation pipe section and an outflow pipe section that are interconnected, and the outflow pipe section is in communication with the manifold pipe section. Among them, the outflow pipe section includes a centrifugal outer wall and an inner wall corresponding to the centrifugal outer wall, and the discrete orifice plate is inclined between the centrifugal outer wall and the inner wall.

[0012] In some alternative embodiments, the discrete orifice plate is inclined upward in the direction from the centrifugal outer wall to the inner wall. Among them, the angle between the discrete orifice plate and the horizontal direction is a1, and a1 ≤ 40°.

[0013] In some alternative embodiments, the discrete orifice plate is inclined downward in the direction from the centrifugal outer wall to the inner wall. Among them, the angle between the discrete orifice plate and the horizontal direction is a2, and a2 ≤ 40°.

[0014] In some alternative embodiments, the manifold pipe section includes a manifold outer wall on the same side as the centrifugal outer wall, and the first liquid outlet branch pipe is arranged on the manifold outer wall.

[0015] In some alternative embodiments, the distance between the bottom end of the discrete orifice plate and the bottom end of the separation pipe section is h1, where h1 ≥ 15 mm.

[0016] In some alternative embodiments, the distance between the first connection point of the separation pipe section and the outflow pipe section and the bottom end of the discrete orifice plate is h2, where h2 ≥ 5 mm.

[0017] In some alternative embodiments, the manifold component further includes: a liquid pipe conduction component connected to the manifold pipe section. The liquid pipe conduction component includes a liquid valve conduction inlet end and a liquid valve conduction outlet end; and a second liquid outlet branch pipe and a third liquid outlet branch pipe connected to one side of the liquid valve conduction outlet end of the liquid pipe conduction component of the manifold pipe section. Among them, the first liquid outlet branch pipe is connected to one side of the liquid valve conduction inlet end of the liquid pipe conduction component of the manifold pipe section.

[0018] In some embodiments, the variable flow splitting heat exchanger includes: the manifold component as described above; and a plurality of heat exchange branches, and each heat exchange branch is connected to the manifold pipe section of the manifold component through a liquid outlet branch pipe.

[0019] 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. The plurality of heat exchange branches includes a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch. Among them, 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.

[0020] The header component and the variable flow-dividing heat exchanger provided by the embodiments of the present disclosure can achieve the following technical effects:

[0021] The header component provided by the embodiments of the present disclosure includes a manifold section, a liquid inlet pipe section, a first liquid outlet branch, and a discrete orifice plate. The discrete orifice plate is disposed in the fluid flow path flowing from the liquid inlet pipe section and flowing out from the first liquid outlet branch, so as to discrete the fluid flowing out from the liquid inlet pipe section and then flow out from the first liquid outlet branch. In this way, the gas-liquid two-phase refrigerant flowing in from the manifold section can be broken up under the action of the discrete orifice plate, and the gas-liquid two-phase refrigerant after being broken up and mixed then flows out from the first liquid outlet branch. In this way, the mixing degree of the gas-liquid two-phase refrigerant is improved, the certainty and stability of the amount of refrigerant distributed from the manifold section into the first liquid outlet branch are improved, the liquid distribution uniformity of the header component for the refrigerant is improved, and thus the heat exchange efficiency of the heat exchanger and the operation stability of the air conditioner are improved.

[0022] 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

[0023] 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 among them:

[0024] Figure 1 is a schematic structural diagram of a header component provided by an embodiment of the present disclosure;

[0025] Figure 2 is a schematic structural diagram of another header component provided by an embodiment of the present disclosure;

[0026] Figure 3 is Figure 2 an enlarged view of a selected part in

[0027] Figure 4 is a schematic structural diagram of an inlet liquid pipe segment provided by an embodiment of the present disclosure;

[0028] Figure 5 is a schematic structural diagram of another inlet liquid pipe segment provided by an embodiment of the present disclosure;

[0029] Figure 6 is a schematic structural diagram of a discrete orifice plate provided by an embodiment of the present disclosure;

[0030] Figure 7 is a schematic structural diagram of another discrete orifice plate provided by an embodiment of the present disclosure;

[0031] Figure 8 is a schematic structural diagram of a gas pipe component provided by an embodiment of the present disclosure;

[0032] Figure 9 is a schematic structural diagram of a variable flow - splitting heat exchanger provided by an embodiment of the present disclosure;

[0033] Figure 10 is a flow path diagram of refrigerant when the variable flow - splitting heat exchanger serves as an evaporator provided by an embodiment of the present disclosure;

[0034] Figure 11 is a flow path diagram of refrigerant when the variable flow - splitting heat exchanger serves as a condenser provided by an embodiment of the present disclosure.

[0035] Reference numerals:

[0036] 100: manifold segment; 110: inlet liquid pipe segment; 111: separation pipe segment; 112: first connection point; 113: outlet pipe segment; 1131: centrifugal outer wall; 1132: inner wall; 120: first liquid outlet branch; 130: liquid pipe conduction component; 140: second liquid outlet branch; 150: third liquid outlet branch; 160: discrete orifice plate;

[0037] 200: gas manifold segment; 210: inlet gas pipe segment; 220: gas pipe conduction component; 230: first gas pipe branch; 240: second gas pipe branch; 250: third gas pipe branch; 201: gas valve conduction outlet side; 202: gas valve conduction inlet side;

[0038] 300: heat exchange tube; 301: fin; 310: first heat exchange branch; 320: second heat exchange branch; 330: third heat exchange branch. Detailed implementation manners

[0039] 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 for reference and illustration only, and are not intended to limit the embodiments of the present disclosure. In the following technical description, for the sake of explanation, numerous details are provided to give a thorough understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.

[0040] In the specification, claims and above-mentioned drawings of the embodiments of the present disclosure, the terms "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that such data may 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.

[0041] 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. And, 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.

[0042] In addition, the terms "arranged", "connected", "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.

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

[0044] 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.

[0045] The term "and / or" is an associative relationship describing an object, indicating that there can be three relationships. For example, A and / or B means: A or B, or, A and B these three relationships.

[0046] 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.

[0047] The embodiments of the present disclosure provide a header component. Optionally, the header component provided by the embodiments of the present disclosure may be used as the liquid pipe structure of a heat exchanger.

[0048] Optionally, the header component includes a header pipe section 100, a liquid inlet pipe section 110, a first liquid outlet branch pipe 120, and a discrete orifice plate 160. The liquid inlet pipe section 110 is communicated with the header pipe section 100; the first liquid outlet branch pipe 120 is communicated with the header pipe section 100; the discrete orifice plate 160 is arranged in the fluid flow path flowing in from the liquid inlet pipe section 110 and flowing out from the first liquid outlet branch pipe 120, so as to discrete the fluid flowing out from the liquid inlet pipe section 110 and then flow out from the first liquid outlet branch pipe 120.

[0049] When the variable flow-dividing heat exchanger is used as an evaporator, the gas-liquid two-phase refrigerant flows into from the liquid inlet pipe section 110 of the header component. Due to the centrifugal force of the liquid inlet pipe section 110, the liquid refrigerant in the gas-liquid two-phase refrigerant accumulates on the outer side of the bent wall, and the gaseous refrigerant accumulates on the inner side of the bent 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 division under the same working conditions, affecting the heat exchange effect of the heat exchanger.

[0050] In the embodiments of the present disclosure, a discrete orifice plate 160 structure is arranged below the first liquid outlet branch pipe 120, improving the mixing degree of the gas-liquid two-phase refrigerant.

[0051] Optionally, in the fluid flow path, the liquid inlet pipe section 110 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 discrete orifice plate 160 is arranged in the fluid path before flowing into the first liquid outlet branch pipe 120.

[0052] Optionally, the shape of the aperture of the discrete orifice plate 160 may be a circular shape, a square shape, a polygonal shape or an irregular shape such as a porous row, etc. As Figure 7 shown.

[0053] Optionally, the header component includes a first discrete position where the discrete orifice plate 160 is arranged, and the flow direction of the fluid at the first discrete position is the first direction, wherein the discrete orifice plate 160 is arranged at a non-right angle to the first direction.

[0054] Optionally, the setting direction of the header component is as Figure 1 and Figure 2 shown, and the flow direction of the fluid at the first discrete position is from bottom to top.

[0055] The discrete orifice plate 160 is inclined at the first discrete position, such as Figures 2 to 5 shown, so that the liquid refrigerant impacts the gaseous refrigerant region at an angle, improving the mixing degree of the gas-liquid two-phase refrigerant.

[0056] Optionally, the liquid inlet pipe section 110 includes a separating pipe section 111 and an outflow pipe section 113 that communicate with each other, and the outflow pipe section 113 communicates with the header pipe section 100. Among them, the outflow pipe section 113 includes a centrifugal outer wall 1131 and an inner wall 1132 corresponding to the centrifugal outer wall 1131. The discrete orifice plate 160 is inclined between the centrifugal outer wall 1131 and the inner wall 1132. Such as Figure 3 and Figure 4 shown.

[0057] As described above, the gas-liquid two-phase refrigerant flows into the liquid inlet pipe section 110 of the header component. Under the action of the centrifugal force of the liquid inlet pipe section 110, the liquid refrigerant in the gas-liquid two-phase refrigerant accumulates on the outer side of the curved wall, that is, the liquid refrigerant accumulates on the centrifugal outer wall 1131; the gas accumulates on the inner side of the curved wall, that is, the gaseous refrigerant accumulates on the inner wall 1132. The discrete orifice plate 160 is inclined between the centrifugal outer wall 1131 and the inner wall 1132, improving the mixing degree of the discrete orifice plate 160 for the gas-liquid two-phase refrigerant.

[0058] Optionally, the separating pipe section 111 can be a U-shaped pipe. The refrigerant flows in the U-shaped separating pipe section 111, which has a certain centrifugal and accelerating effect, facilitating liquid separation between different liquid outlet branch pipes after entering the header pipe section 100.

[0059] Optionally, the discrete orifice plate 160 is inclined upward along the direction from the centrifugal outer wall 1131 to the inner wall 1132, where the angle between the discrete orifice plate 160 and the horizontal direction is a1, and a1 ≤ 40°. Such as Figure 5 shown at A in

[0060] Optionally, the discrete orifice plate 160 is inclined downward along the direction from the centrifugal outer wall 1131 to the inner wall 1132, where the angle between the discrete orifice plate 160 and the horizontal direction is a2, and a2 ≤ 40°. Such as Figure 5 shown at B in

[0061] Optionally, the header pipe section 100 includes a header outer wall on the same side as the centrifugal outer wall 1131, where the first liquid outlet branch pipe 120 is arranged on the header outer wall. Such as Figure 1 and Figure 2 shown.

[0062] The first liquid outlet branch pipe 120 is arranged on one side of the header outer wall of the header pipe section 100, improving the gas-liquid mixing effect of the outflowing refrigerant, and further improving the stability of the refrigerant volume of the refrigerant flowing out from the first liquid outlet branch pipe 120.

[0063] Optionally, the distance between the bottom end of the discrete orifice plate 160 and the bottom end of the separation pipe section 111 is h1, where h1≥15 mm.

[0064] As Figure 3 shown, h1≥15 mm. In this way, while ensuring that the centrifugal acceleration effect of the separation pipe section 111 on the refrigerant is fully exerted, the discrete orifice plate 160 breaks up the centrifugally accelerated refrigerant, so that the setting of the discrete orifice plate 160 does not increase the resistance to the refrigerant separated by the separation pipe section 111.

[0065] Optionally, the distance between the first connection 112 between the separation pipe section 111 and the outflow pipe section 113 and the bottom end of the discrete orifice plate 160 is h2, where h2≥5 mm.

[0066] As Figure 3 shown, h2≥5 mm. The gas-liquid separation in the separation pipe section 111 is obvious just after passing through. The mixed flow on the left and right sides of the discrete orifice plate 160 is uneven. As the height increases, the gas-liquid boundary diverges and mixes. When h2≥5 mm, the gas-liquid mixed flow region is obvious. Adding the discrete orifice plate 160 structure above this position helps to further increase the mixed flow effect.

[0067] When the distance h2 between the first connection 112 between the separation pipe section 111 and the outflow pipe section 113 and the bottom end of the discrete orifice plate 160 is too large, or when the distance h1 between the bottom end of the discrete orifice plate 160 and the bottom end of the separation pipe section 111 is too large, the refrigerant flowing out of the separation pipe section 111 will generate large bubbles before flowing through the discrete orifice plate 160 due to the turbulence effect during the rising process along the outflow pipe section 113. The large bubbles will cause noise problems. In the embodiments of the present disclosure, h1≥15 mm, or h2≥5 mm. In this way, before the large bubbles are generated, the discrete orifice plate 160 can play a role in breaking up, avoiding the generation of large bubbles, and thus avoiding the noise problems caused by the generation of large bubbles.

[0068] Optionally, the header assembly 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 manifold section 100. The liquid pipe conduction component 130 includes a liquid valve conduction inlet end and a liquid valve conduction outlet end; both the second liquid outlet branch pipe 140 and the third liquid outlet branch pipe 150 are connected to one side of the liquid valve conduction outlet end of the liquid pipe conduction component 130 of the manifold section 100. Among them, the first liquid outlet branch pipe 120 is connected to one side of the liquid valve conduction inlet end of the liquid pipe conduction component 130 of the manifold section 100.

[0069] The manifold section 100 of the header assembly 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 to form 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. As Figure 1 and Figure 2 shown.

[0070] Optionally, the second liquid outlet branch pipe 140 and the third liquid outlet branch pipe 150 are also arranged on one side of the collecting outer wall of the manifold section 100.

[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 manifold section 100, and the first liquid outlet branch pipe 120 is arranged on the lower pipe section of the manifold section 100.

[0072] Optionally, the header assembly is integrally formed. The specific forming method of the header assembly in the embodiments of the present disclosure is not overly limited.

[0073] The embodiments of the present disclosure also provide a variable flow-dividing heat exchanger.

[0074] Optionally, the variable flow-dividing heat exchanger includes the aforementioned header assembly and multiple heat exchange branches. Each heat exchange branch is connected to the manifold section 100 of the header assembly 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 serves as an evaporator, multiple heat exchange branches are connected in parallel. When the variable flow-dividing heat exchanger serves as a condenser, multiple heat exchange branches are connected in series.

[0076] Optionally, the variable flow-dividing heat exchanger further includes an air pipe component.

[0077] The air pipe component includes a collecting pipe section 200, an air pipe conduction component 220, a first air pipe branch 230, a second air pipe branch 240, and a third air pipe branch 250. The air pipe conduction component 220 is connected to the collecting pipe section 200, and the air pipe conduction component 220 includes an air valve conduction inlet end and an air valve conduction outlet end. The first air pipe branch 230 is connected to one side of the air valve conduction outlet end of the collecting pipe section 200, and the second air pipe branch 240 and the third air pipe branch 250 are connected to one side of the air valve conduction inlet end of the collecting pipe section 200.

[0078] Optionally, the air pipe conduction component 220 includes a one-way valve or a solenoid valve, and its conduction direction is unidirectional from the air valve conduction inlet end to the air valve conduction outlet end. Similarly, the aforementioned liquid pipe conduction component 130 also includes a one-way valve or a solenoid valve, and its conduction direction is unidirectional from the liquid valve conduction inlet end to the liquid valve conduction outlet end.

[0079] The trachea conduction component divides the gas collecting pipe section into one side 201 of the gas valve conduction outflow end and one side 202 of the gas valve conduction inflow end. The first trachea branch pipe 230 communicates with one side 201 of the gas valve conduction outflow end and is used to communicate with the third heat exchange branch 330 of the variable shunt heat exchanger. The second trachea branch pipe 240 communicates with one side 202 of the gas valve conduction inflow end and is used to communicate with the second heat exchange branch 320 of the variable shunt heat exchanger. The second heat exchange branch 320 communicates with the lower part of the third heat exchange branch 330. The third trachea branch pipe 250 communicates with one side 202 of the gas valve conduction inflow end and is used to communicate with the first heat exchange branch 310 of the variable shunt heat exchanger. The first heat exchange branch 310 is arranged below the second heat exchange branch 320. Among them, the first trachea branch pipe 230 communicates with the first height of the gas collecting pipe section 200, and the air inlet pipe 210 communicates with the second height of the gas collecting pipe section 200, and the first height is greater than or equal to the second height. As Figure 8 shown.

[0080] In the trachea component provided by the embodiment of the present disclosure, the first trachea branch pipe 230 communicates with the first height of the gas collecting pipe section 200, and the air inlet pipe 210 communicates with the second height of the gas collecting pipe section 200, and the first height is greater than or equal to the second height. In this way, the installation height of the air inlet pipe 210 on the gas collecting pipe section 200 is flush with the first trachea branch pipe 230, or the installation height of the air inlet pipe 210 on the gas collecting pipe section 200 is lower than the first trachea branch pipe 230. In this way, when the variable shunt heat exchanger operates in the heating mode, the length of the flow path of the refrigerant flowing out from the second trachea branch pipe 240 and the third trachea branch pipe 250 is reduced, the difference in the refrigerant flow rate between the multiple heat exchange branches of the variable shunt heat exchanger is reduced, and the heat exchange efficiency of the variable shunt heat exchanger is improved.

[0081] It can be understood that when the variable shunt heat exchanger is in use, the gas collecting pipe section 200 is arranged vertically. The first height can be understood as the vertical distance from the bottom of the gas collecting pipe section 200 to the installation position of the first trachea branch pipe 230 on the gas collecting pipe section 200, and the second height can be understood as the vertical distance from the bottom of the gas collecting pipe section 200 to the installation position of the air inlet pipe 210 on the gas collecting pipe section 200.

[0082] Optionally, a first position and a second position are symmetrically arranged at the first height of the gas collecting pipe section 200. Among them, the first trachea branch pipe 230 communicates with the first position, and the air inlet pipe 210 communicates with the second position.

[0083] When the first tracheal branch pipe 230 is flush with the intake pipe 210, the first tracheal branch pipe 230 and the intake pipe 210 are symmetrically connected to the first height of the header pipe section 200. This symmetrical setting can be understood as the symmetrical first position and second position obtained by dividing with the diameter at the first height of the header pipe section 200.

[0084] Optionally, a first position and a second position are symmetrically arranged at the first height of the header pipe section 200. Among them, the first tracheal branch pipe 230 is connected to the first position, and the intake pipe 210 is connected to directly below the second position.

[0085] When the intake pipe 210 is connected to the lower part of the first tracheal branch pipe 230, the intake pipe 210 can be connected to directly below the second position. In this way, the length of the flow path of the refrigerant flowing out from the second tracheal branch pipe 240 and the third tracheal branch pipe 250 is further reduced. Optionally, the second tracheal branch pipe 240 and the third tracheal branch pipe 250 are connected to directly below the first position. In this way, the first tracheal branch pipe 230, the second tracheal branch pipe 240, and the third tracheal branch pipe 250 are all arranged in the same vertical direction, improving the uniformity of the flow directions of the refrigerant flowing out from different shunt pipes respectively.

[0086] Optionally, the difference between the first height of the first tracheal branch pipe 230 and the second height of the intake pipe 210 is less than or equal to a first preset difference. When the intake pipe 210 is connected to the lower part of the first tracheal branch pipe 230, the difference between the first tracheal branch pipe 230 and the intake pipe 210 in the vertical direction should not be too large. In this way, it is beneficial for the refrigerant flowing out from the first tracheal branch pipe 230 to flow out through the intake pipe 210. Optionally, the first preset difference is less than or equal to 20 mm.

[0087] Optionally, the header pipe section 200 includes a top with a cap structure. Among them, the distance from the intake pipe 210 to the top of the header pipe section 200 is greater than or equal to a first preset distance. Optionally, the first preset distance is greater than or equal to 20 mm. In this way, the uniformity of the refrigerant amount between multiple heat exchange branches is further improved.

[0088] Optionally, 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 pipe 120 and the third tracheal branch pipe 250, the second heat exchange branch 320 is connected between the second liquid outlet branch pipe 140 and the second tracheal branch pipe 240, and the third heat exchange branch 330 is connected between the third liquid outlet branch pipe 150 and the first tracheal branch pipe 230.

[0089] In this way, a complete variable flow-dividing heat exchange structure can be formed, enabling the variable flow-dividing 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.

[0090] 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. In this way, the first heat exchange branch 310, the second heat exchange branch 320, and the third heat exchange branch 330 are vertically distributed, which can utilize the influence of gravity on the refrigerant to further reduce the amount of refrigerant entering the third heat exchange branch 330 under the heating condition, balance the influence of the pressure loss caused by the need to pass through the gas pipe conduction component 220 in the second heat exchange branch 320 and the first heat exchange branch 310, and improve the uniformity of flow division.

[0091] Combined with Figure 10 As shown, when the variable flow-dividing heat exchanger is used as an evaporator, the refrigerant enters the header pipe section 100 through the liquid inlet pipe 110. 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 pipe 120, the second liquid outlet branch pipe 140, and the third liquid outlet branch pipe 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 header 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 header pipe section 200 is also in a conductive state. After the refrigerant returns in the header pipe section 200, it is discharged through the gas inlet pipe 210. Three parallel flow paths can be formed for heat exchange, 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.

[0092] Combined with Figure 11As shown, when the variable flow divider heat exchanger is used as a condenser, the refrigerant enters the header pipe section 200 through the inlet pipe 210. At this time, under the pressure of the refrigerant, the gas pipe conduction component 220 is in a non-conductive state. After the refrigerant enters the upper half of the header pipe section 200 and is in the gas pipe conduction component 220, 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-conductive 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 through the liquid inlet pipe 110, 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.

[0093] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless specifically required, the individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments can be included in or replaced by parts and features of other embodiments. The 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 only limited by the appended claims.

Claims

1. A header component, characterized in that, Comprising: A manifold pipe section; An inlet pipe section, which is in communication with the manifold pipe section; A first outlet branch pipe, which is in communication with the manifold pipe section; And, A discrete orifice plate, which is arranged in the fluid flow path flowing from the inlet pipe section and flowing out from the first outlet branch pipe, so as to discrete the fluid flowing out from the inlet pipe section and then flow out from the first outlet branch pipe.

2. The manifold component according to claim 1, wherein The manifold component includes a first discrete position where a discrete orifice plate is arranged, and the fluid flow direction at the first discrete position is a first direction, wherein the discrete orifice plate is arranged at a non-right angle to the first direction.

3. The manifold component according to claim 2, wherein The inlet pipe section includes a separation pipe section and an outflow pipe section that are in communication with each other, and the outflow pipe section is in communication with the manifold pipe section, wherein the outflow pipe section includes a centrifugal outer wall and an inner wall corresponding to the centrifugal outer wall, and the discrete orifice plate is inclinedly arranged between the centrifugal outer wall and the inner wall.

4. The manifold component according to claim 3, wherein The discrete orifice plate is inclinedly arranged upward along the direction from the centrifugal outer wall to the inner wall, wherein the included angle between the discrete orifice plate and the horizontal direction is a1, and a1 ≤ 40°.

5. The manifold component according to claim 3, wherein The discrete orifice plate is inclinedly arranged downward along the direction from the centrifugal outer wall to the inner wall, wherein the included angle between the discrete orifice plate and the horizontal direction is a2, and a2 ≤ 40°.

6. The manifold component according to claim 3, wherein The manifold pipe section includes a manifold outer wall on the same side as the centrifugal outer wall, wherein the first outlet branch pipe is arranged on the manifold outer wall.

7. The manifold component according to claim 3, wherein The distance between the bottom end of the discrete orifice plate and the bottom end of the separation pipe section is h1, wherein h1 ≥ 15 mm.

8. The manifold component according to claim 7, wherein The distance between the first connection point of the separation pipe section and the outflow pipe section and the bottom end of the discrete orifice plate is h2, wherein h2 ≥ 5 mm.

9. The header component according to any one of claims 1 to 8, characterized in that, Further comprising: A liquid pipe conduction component, which is connected to 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 branch pipe and a third outlet branch pipe, which are connected to one side of the liquid valve conduction outlet end of the liquid pipe conduction component connected to the manifold pipe 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 connected to the manifold pipe section.

10. A variable flow-dividing heat exchanger, characterized in that, Comprising: The manifold component according to any one of claims 1 to 9; and, A plurality of heat exchange branches, and each heat exchange branch is connected to the manifold pipe section of the manifold component through an outlet branch pipe.

11. The variable flow splitting heat exchanger according to claim 10, 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 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. The multiple heat exchange branches include a first heat exchange branch, a second heat exchange branch, and a third heat exchange branch. Among them, the first heat exchange branch is connected between the first liquid outlet branch pipe and the third gas pipe branch pipe, the second heat exchange branch is connected between the second liquid outlet branch pipe and the second gas pipe branch pipe, and the third heat exchange branch is connected between the third liquid outlet branch pipe and the first gas pipe branch pipe.

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