Gas guide piece and gas-liquid separator

Abstract

The utility model relates to a gas guide part and a gas-liquid separator, the gas guide part is arranged in a cavity of the gas-liquid separator, the gas-liquid separator is provided with a gas outlet communicated with the cavity, the gas guide part is provided with a gas-liquid separation channel, the gas-liquid separation channel is provided with an inlet and an outlet, the inlet is communicated with the cavity, and the outlet is communicated with the cavity. The outlet is located above the inlet in the first preset direction X and used for being communicated with the air outlet. Moreover, in the direction from the inlet to the outlet, the gas-liquid separation channel reciprocates between the two opposite ends, in the second preset direction Y, of the gas guide piece, and the first preset direction X and the second preset direction Y are perpendicular to each other. According to the gas guide piece and the gas-liquid separator provided by the invention, the gas-liquid separation effect can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of gas-liquid separation equipment, and particularly to a gas guiding member and a gas-liquid separator. Background Art

[0002] A gas-liquid separator is generally used in a refrigeration system and is installed between an evaporator and a compressor to separate gaseous and liquid refrigerants. The gas-liquid separator is provided with a closed cavity, an air inlet pipe and an air outlet pipe are respectively communicated with the closed cavity. Among them, the gas guiding member is arranged in the closed cavity and connected to the air inlet pipe, and is mainly used to separate the air outlet pipe and the air inlet pipe to prevent gas leakage between the air outlet pipe and the air inlet pipe. After the gas-liquid mixed refrigerant enters the closed cavity from the air inlet pipe, the liquid refrigerant sinks to the bottom of the closed cavity under the action of gravity, and the gaseous refrigerant floats and is discharged from the closed cavity through the gas guiding member and the air outlet pipe. In this way, the gas-liquid separation is realized only by the different densities of the gaseous refrigerant and the liquid refrigerant, resulting in poor gas-liquid separation effect of the gas-liquid separator. Summary of the Utility Model

[0003] Based on this, it is necessary to provide a gas guiding member and a gas-liquid separator that can improve the gas-liquid separation effect.

[0004] A gas guiding member is installed in the cavity of a gas-liquid separator. The gas-liquid separator is provided with an air outlet communicating with the cavity. An air-liquid separation channel is formed inside the gas guiding member. The air-liquid separation channel has an inlet and an outlet. The inlet is communicated with the cavity, and the outlet is located above the inlet along a first preset direction X and is used to communicate with the air outlet; and, along the direction from the inlet to the outlet, the air-liquid separation channel reciprocates and turns back between two opposite ends of the gas guiding member along a second preset direction Y, where the first preset direction X is perpendicular to the second preset direction Y.

[0005] In one embodiment, along the direction from the inlet to the outlet, the air-liquid separation channel extends in an S shape.

[0006] In one embodiment, the gas guiding member includes a first box body and a second box body. The second box body is installed inside the first box body, and at least part of the wall surface of the second box body and at least part of the wall surface of the first box body are spaced apart and enclose to form the air-liquid separation channel.

[0007] In one embodiment, the first box body includes a first bottom plate and three first side plates. Along the circumference of the first bottom plate, the three first side plates are respectively connected to three edges of the first bottom plate and enclose to form a first open end at another edge of the first bottom plate, and the three first side plates enclose to form a second open end on the same side away from the first bottom plate; the second box body is installed inside the first box body through the first open end, and the second open end is used to communicate with the air outlet.

[0008] In one embodiment, the second box body includes a second bottom plate and three second side plates. Along the circumferential direction of the second bottom plate, the three second side plates are respectively connected to three edges of the second bottom plate, and a third open end is formed by enclosing at the other edge of the second bottom plate. Moreover, the three second side plates enclose a fourth open end on the same side away from the second bottom plate. Among them, the first open end and the third open end face away from each other, and at least part of the first open end constitutes an inlet. The second open end and the fourth open end are correspondingly arranged and communicate to form an outlet. The second bottom plate and the second side plates divide the interior of the first box body to form a gas-liquid separation channel.

[0009] In one embodiment, the second bottom plate is arranged parallel to the first bottom plate, and the second side plates are arranged parallel to the corresponding first side plates, so that inside the first box body, a first branch and a second branch that are parallel to each other are respectively formed on both sides of the second bottom plate along the first preset direction X. Moreover, the second bottom plate is spaced from the second side plate facing the third open end and encloses a communication port therewith. The communication port connects the first branch and the second branch to form a gas-liquid separation channel.

[0010] In one embodiment, along the first preset direction X, the fourth open end is aligned with the second open end, the fourth open end constitutes an outlet, and an inlet is formed by enclosing among the second bottom plate, the first bottom plate and part of the first side plates.

[0011] In one embodiment, the first bottom plate and the three first side plates are of an integrally bent and formed structure, and a first gap is formed between two adjacent first side plates; and / or, the second bottom plate and the three second side plates are of an integrally bent and formed structure, and a second gap is formed between two adjacent second side plates.

[0012] In one embodiment, the gas-liquid separator includes a housing assembly, an air inlet pipe, and the air guide member described in any one of the above embodiments. The housing assembly is provided with a cavity and an air outlet communicating with the cavity. The air inlet pipe is connected to the housing assembly and communicates with the cavity. The air guide member is installed in the cavity, and the inlet communicates with the cavity and the outlet communicates with the air outlet.

[0013] In one embodiment, the housing assembly includes an upper end cover, a lower end cover, and a cylinder body. The upper end cover and the lower end cover are respectively connected to two ends of the cylinder body and enclose a cavity therewith. The air outlet is opened on the upper end cover, and the air inlet pipe penetrates through the upper end cover and extends into the cavity.

[0014] In one embodiment, one end of the upper end cover and / or the lower end cover is provided with a contraction section that contracts in the direction approaching its own axis and a connection section connected to the contraction section. The connection section extends into the cylinder body and is welded to the cylinder body, and the junction of the contraction section and the connection section overlaps the end face of the cylinder body.

[0015] In one embodiment, the end surface of the cylinder is configured as an inclined surface, one end of the inclined surface abuts against the junction of the contraction section and the connection section, and the other end expands outward relative to the contraction section, and a receiving groove is formed between the inclined surface and the contraction section.

[0016] Compared with the prior art, the gas-liquid mixed refrigerant in the cavity of the air guide and the gas-liquid separator provided by the present application enters the gas-liquid separation channel from the inlet. Since the gas-liquid separation channel is reciprocated between the two ends of the air guide that are opposite to each other in the horizontal direction along the direction from the inlet to the outlet. Therefore, the gas-liquid mixed refrigerant will constantly collide due to the change of the flow direction during the upward flow in the gas-liquid separation channel, wherein the liquid refrigerant adheres to the inner wall of the gas-liquid separation channel, and gathers under the action of gravity and then drips from the inlet to the bottom of the cavity; the gaseous refrigerant continues to flow upward to the outlet, and then is discharged from the cavity through the air outlet. In this way, by setting the gas-liquid separation channel in the air guide, the collision effect on the gas-liquid mixed refrigerant can be enhanced, thereby effectively improving the gas-liquid separation effect. In addition, the air guide provided by the present application replaces part of the gas outlet pipe located in the cavity in the related structure, which is conducive to improving the gas-liquid separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of the structure of the gas-liquid separator provided in this application;

[0019] Figure 2 An exploded view of the gas-liquid separator provided for this application;

[0020] Figure 3 A top view of the gas-liquid separator provided in this application;

[0021] Figure 4 for Figure 3 Sectional view at AA;

[0022] Figure 5 An exploded view of the air guide provided for this application.

[0023] Reference numerals: 100, gas-liquid separator; 10, gas guide member; 11, gas-liquid separation channel; 111, inlet; 112, outlet; 14, first box body; 141, first bottom plate; 142, first side plate; 143, first open end; 144, second open end; 145, first gap; 15, second box body; 151, second bottom plate; 152, second side plate; 153, third open end; 154, fourth open end; 155, second gap; 20, cavity; 30, air outlet; 40, housing assembly; 41, upper end cover; 411, contraction section; 412, connection section; 413, receiving groove; 42, lower end cover; 43, cylinder body; 431, inclined surface; 50, intake connection pipe; 51, intake port. Detailed implementation manners

[0024] In order to make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0025] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the description of the present application are only for the purpose of illustration and do not represent the only implementation manner.

[0026] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0027] In this application, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or the first feature is in indirect contact with the second feature through an intermediate medium. Moreover, the first feature being "above", "over" or "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or it merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" or "underneath" the second feature may mean that the first feature is directly below or obliquely below the second feature, or it merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0028] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as commonly understood by those skilled in the technical field to which this application pertains. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more of the related listed items.

[0029] Please refer to Figures 1 to 4 , this application provides a gas guiding member 10, which is installed in a cavity 20 of a gas-liquid separator 100. The gas-liquid separator 100 is provided with an air outlet 30 communicating with the cavity 20. A gas-liquid separation channel 11 is formed inside the gas guiding member 10. The gas-liquid separation channel 11 has an inlet 111 and an outlet 112. The inlet 111 communicates with the cavity 20, and the outlet 112 is located above the inlet 111 along a first preset direction X and is used to communicate with the air outlet 30; and, along the direction from the inlet 111 to the outlet 112, the gas-liquid separation channel 11 reciprocates and turns back between two opposite ends of the gas guiding member 10 along a second preset direction Y, where the first preset direction X is perpendicular to the second preset direction Y.

[0030] It should be noted that "the gas-liquid separation channel 11 reciprocates and turns back between two opposite ends of the gas guiding member 10 along the second preset direction Y" means that while the gas-liquid separation channel 11 extends along the first preset direction X, it turns back and forth between two opposite ends of the gas guiding member 10 along the second preset direction Y. And, when the gas guiding member 10 is actually used, the first preset direction X refers to the vertical direction, and the second preset direction Y refers to the horizontal direction.

[0031] The gas-liquid mixed refrigerant in the cavity 20 enters the gas-liquid separation channel 11 from the inlet 111. Since the gas-liquid separation channel 11 is reciprocated between the two ends of the gas guide 10 in the horizontal direction along the direction from the inlet 111 to the outlet 112. Therefore, the gas-liquid mixed refrigerant will constantly collide due to the change of the flow direction during the upward flow in the gas-liquid separation channel 11, wherein the liquid refrigerant adheres to the inner wall of the gas-liquid separation channel 11, and gathers under the action of gravity and then drips from the inlet 111 to the bottom of the cavity 20; the gaseous refrigerant continues to flow upward to the outlet 112, and then discharges the cavity 20 through the outlet 30. In this way, by arranging the gas-liquid separation channel 11 in the gas guide 10, the collision effect on the gas-liquid mixed refrigerant can be enhanced, thereby effectively improving the gas-liquid separation effect. In addition, the gas guide 10 provided in the present application replaces part of the gas outlet pipe located in the cavity in the relevant structure, which is conducive to improving the effect of gas-liquid separation. Among them, the gas-liquid mixed refrigerant includes but is not limited to CO2 refrigerant.

[0032] Optionally, in one embodiment, if Figure 4 As shown, along the direction from the inlet 111 to the outlet 112, the gas-liquid separation channel 11 extends in an S shape. That is, along the direction from the inlet 111 to the outlet 112, the gas-liquid separation channel 11 only turns back twice between the two ends of the air guide 10 that are opposite to each other in the horizontal direction. It can be understood that the more times the gas-liquid separation channel 11 turns back and forth between the two ends of the air guide 10 that are opposite to each other along the second preset direction Y, the longer the flow channel through which the gas-liquid mixed refrigerant passes, and the gas-liquid mixed refrigerant can repeatedly collide with the wall of the gas-liquid separation channel 11, thereby achieving a better gas-liquid separation effect on the refrigerant. However, this will also cause the structure of the gas-liquid separation channel 11 to be more complicated. By setting the gas-liquid separation channel 11 to extend in an S shape, the structure of the gas-liquid separation channel 11 is made relatively simple while ensuring the gas-liquid separation effect. In other embodiments, the gas-liquid separation channel 11 may bend three times, four times, or five times between two opposite ends of the air guide 10 in the horizontal direction along the direction from the inlet 111 to the outlet 112, and the specific setting can be based on actual needs.

[0033] See also Figure 2 and Figure 5 Optionally, in some embodiments, the air guide 10 includes a first box body 14 and a second box body 15, the second box body 15 is installed inside the first box body 14, and at least a portion of the wall surface of the second box body 15 is spaced apart from and surrounded by at least a portion of the wall surface of the first box body 14 to form a gas-liquid separation channel 11.

[0034] Alternatively, in other embodiments, the air guide member 10 may be provided as a whole box body, and then a gas-liquid separation channel 11 is opened inside the box body.

[0035] Exemplarily, in one embodiment, the first box body 14 includes a first bottom plate 141 and three first side plates 142. Along the circumferential direction of the first bottom plate 141, the three first side plates 142 are respectively connected to three edges of the first bottom plate 141, and a first opening 143 is formed by enclosing at another edge of the first bottom plate 141. Moreover, a second opening 144 is formed by enclosing among the three first side plates 142. The second box body 15 is installed inside the first box body 14 through the first opening 143, and the second opening 144 is used to communicate with the air outlet 30.

[0036] Further, the second box body 15 includes a second bottom plate 151 and three second side plates 152. Along the circumferential direction of the second bottom plate 151, the three second side plates 152 are respectively connected to three edges of the second bottom plate 151, and a third opening 153 is formed by enclosing at another edge of the second bottom plate 151. Moreover, a fourth opening 154 is formed by enclosing among the three second side plates 152; wherein, the first opening 143 and the third opening 153 face away from each other, and at least part of the first opening 143 constitutes the inlet 111, the second opening 144 and the fourth opening 154 are correspondingly arranged and communicated to form the outlet 112, and the second bottom plate 151 and the second side plates 152 divide the interior of the first box body 14 to form a gas-liquid separation channel 11. Wherein, the second box body 15 is installed into the first box body 14 through the first opening 143 with the angle that the third opening 153 faces the first opening 143.

[0037] Specifically, the second bottom plate 151 is arranged parallel to the first bottom plate 141, and the second side plates 152 are arranged parallel to the corresponding first side plates 142, so that inside the first box body 14, a first branch and a second branch that are parallel to each other are respectively formed on two sides of the second bottom plate 151 along the first preset direction X; and, the second bottom plate 151 and the second side plates 152 facing the third opening 153 are arranged at intervals and enclose to form a communication port, and the communication port connects the first branch and the second branch to form the gas-liquid separation channel 11.

[0038] Wherein, the flow areas of the first branch and the second branch can be set according to actual requirements. For example, in one embodiment, along the first preset direction X, the second bottom plate 151 is located at the middle position of the first box body 14, so that the flow areas of the first branch and the second branch are the same or approximately the same.

[0039] Further, the second side plates 152 are close to the corresponding first side plates 142 and form a relatively small assembly gap. It can be understood that if the above-mentioned assembly gap is too large, after the gas-liquid mixed refrigerant enters the inlet 111, it may directly enter the outlet 112 upward along the assembly gap, thus affecting the gas-liquid separation effect. If the above-mentioned assembly gap is too small or the second side plates 152 are directly attached to the corresponding first side plates 142, it will cause difficulties in assembling the second box body 15 and the first box body 14.

[0040] Along the first preset direction X, the fourth open end 154 is aligned with the second open end 144. The fourth open end 154 forms the outlet 112, and an inlet 111 is formed by enclosing between the second bottom plate 151, the first bottom plate 141, and a part of the first side plate 142. In this way, when the volume of the second box body 15 is the same, the internal space of the first box body 14 can be fully utilized, so as to form sufficient space below the first box body 14 for forming a part of the gas-liquid separation channel 11 and for forming the inlet 111 with the required size.

[0041] Optionally, the second box body 15 does not extend out of the first open end 143.

[0042] The first bottom plate 141 and the three first side plates 142 are of an integrally bent and formed structure, and a first gap 145 is formed between two adjacent first side plates 142; and / or, the second bottom plate 151 and the three second side plates 152 are of an integrally bent and formed structure, and a second gap 155 is formed between two adjacent second side plates 152. In other words, it can be that only the first bottom plate 141 and the three first side plates 142 are configured as an integrally bent and formed structure. Specifically, the three first side plates 142 are bent towards the same side of the first bottom plate 141, so that a first gap 145 is formed between two adjacent first side plates 142. In this way, the liquid refrigerant separated by the gas guide member 10 can also flow out through the first gap 145 and drip to the bottom of the cavity 20; it can also be that only the second bottom plate 151 and the three second side plates 152 are configured as an integrally bent and formed structure. Specifically, the three second side plates 152 are bent towards the same side of the second bottom plate 151, so that a second gap 155 is formed between two adjacent second side plates 152. In this way, the liquid refrigerant separated by the gas guide member 10 can also flow out through the second gap 155 and drip to the bottom of the cavity 20; it can also be that the first bottom plate 141 and the three first side plates 142 are configured as an integrally bent and formed structure, and the second bottom plate 151 and the three second side plates 152 are configured as an integrally bent and formed structure. In this way, it is easier to process the first box body 14 and the second box body 15.

[0043] However, it is not limited to this. The first bottom plate 141 and the three first side plates 142 can also be of an integrally stamped and formed structure. Similarly, the second bottom plate 151 and the three second side plates 152 can also be of an integrally stamped and formed structure.

[0044] Please refer to again Figures 1 to 4, the present application further provides a gas-liquid separator 100, which includes a housing assembly 40, an air inlet pipe 50, and the air guiding member 10 described in any one of the above embodiments. The housing assembly 40 is provided with a cavity 20 and an air outlet 30 communicating with the cavity 20. The air inlet pipe 50 is connected to the housing assembly 40 and communicates with the cavity 20. The air guiding member 10 is installed in the cavity 20, and the inlet 111 communicates with the cavity 20, and the outlet 112 communicates with the air outlet 30.

[0045] Among them, the housing assembly 40 includes an upper end cover 41, a lower end cover 42, and a cylinder body 43. The upper end cover 41 and the lower end cover 42 are respectively connected to both ends of the cylinder body 43 and enclose a cavity 20 with the cylinder body 43. The air outlet 30 is opened on the upper end cover 41, and the air inlet pipe 50 penetrates through the upper end cover 41 and extends into the cavity 20. Specifically, the air outlet 30 is relatively arranged in the middle of the third open end 153.

[0046] As Figure 4 shown, one end of the upper end cover 41 is provided with a contraction section 411 that contracts towards the direction close to its own axis and a connection section 412 connected to the contraction section 411. The connection section 412 extends into the cylinder body 43 and is welded to the cylinder body 43. The junction of the contraction section 411 and the connection section 412 overlaps the end face of the cylinder body 43. In this way, it is convenient to install and position the upper end cover 41 and the cylinder body 43, and the welding area between the upper end cover 41 and the cylinder body 43 can be increased.

[0047] The end face of the cylinder body 43 is configured as an inclined surface 431. One end of the inclined surface 431 abuts against the junction of the contraction section 411 and the connection section 412, and the other end expands outward relative to the contraction section 411. Moreover, a receiving groove 413 is formed between the inclined surface 431 and the contraction section 411 for receiving solder, so as to further increase the welding area between the upper end cover 41 and the cylinder body 43. Of course, the connection between the lower end cover 42 and the cylinder body 43 can also adopt the above form, which will not be elaborated here. In this way, the connection between the upper end cover 41, the cylinder body 43, and the lower end cover 42 is more firm, thereby improving the pressure-bearing capacity of the gas-liquid separator.

[0048] Furthermore, the air guiding member 10 is fixedly connected to the upper end cover 41.

[0049] Specifically, in one embodiment, the edge of the second open end 144 is welded to the upper end cover 41, and the upper edge of the fourth open end 154 is welded to the upper end cover 41.

[0050] Furthermore, the upper end cover 41 is provided with an installation plane, and the edge of the second open end 144 and the upper edge of the fourth open end 154 are respectively welded to the installation plane. Optionally, positioning marks can be respectively set on the installation plane corresponding to the edge of the second open end 144 and the upper edge of the fourth open end 154.

[0051] In one embodiment, asFigure 4 As shown, one end of the intake connection pipe 50 extending into the cavity 20 has an air inlet 51, and the orientation of the air inlet 51 is opposite to that of the inlet 111. In this way, air leakage between the intake connection pipe 50 and the air guiding member 10 can be avoided.

[0052] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0053] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application shall be subject to the appended claims.

Claims

1. An air guiding member is installed in a cavity (20) of a gas-liquid separator, and an air outlet (30) communicating with the cavity (20) is provided on the gas-liquid separator, characterized in that, An air guiding member (10) is internally formed with a gas-liquid separation channel (11). The gas-liquid separation channel (11) has an inlet (111) and an outlet (112). The inlet (111) communicates with the cavity (20), and the outlet (112) is located above the inlet (111) along a first preset direction X and is used to communicate with the air outlet (30). Moreover, along the direction from the inlet (111) to the outlet (112), the gas-liquid separation channel (11) reciprocates and turns back between two opposite ends of the air guiding member (10) along a second preset direction Y, where the first preset direction X is perpendicular to the second preset direction Y.

2. The air guide member according to claim 1, characterized in that Along the direction from the inlet (111) to the outlet (112), the gas-liquid separation channel (11) extends in an S shape.

3. The air guide according to claim 1, characterized in that, The air guiding member (10) includes a first box body (14) and a second box body (15). The second box body (15) is installed inside the first box body (14). Moreover, at least part of the wall surface of the second box body (15) and at least part of the wall surface of the first box body (14) are spaced apart and enclose to form the gas-liquid separation channel (11).

4. The air guiding member according to claim 3, wherein, The first box body (14) includes a first bottom plate (141) and three first side plates (142). Along the circumference of the first bottom plate (141), the three first side plates (142) are respectively connected to three edges of the first bottom plate (141) and enclose to form a first open end (143) at another edge of the first bottom plate (141). Moreover, the three first side plates (142) enclose to form a second open end (144) on the same side away from the first bottom plate (141). The second box body (15) is installed inside the first box body (14) through the first open end (143), and the second open end (144) is used to communicate with the air outlet (30).

5. The air guide according to claim 4, characterized in that The second box body (15) includes a second bottom plate (151) and three second side plates (152). Along the circumference of the second bottom plate (151), the three second side plates (152) are respectively connected to three edges of the second bottom plate (151) and enclose to form a third open end (153) at another edge of the second bottom plate (151). Moreover, the three second side plates (152) enclose to form a fourth open end (154) on the same side away from the second bottom plate (151). Wherein, the first open end (143) and the third open end (153) face away from each other, and at least part of the first open end (143) constitutes the inlet (111). The second open end (144) and the fourth open end (154) are correspondingly arranged and communicated to form the outlet (112). The second bottom plate (151) and the second side plates (152) divide the interior of the first box body (14) to form the gas-liquid separation channel (11).

6. The air guiding member according to claim 5, wherein The second bottom plate (151) is arranged parallel to the first bottom plate (141), and the second side plate (152) is arranged parallel to the corresponding first side plate (142), so that inside the first box body (14), a first branch and a second branch which are parallel to each other are respectively formed on two sides of the second bottom plate (151) along the first preset direction X; Moreover, the second bottom plate (151) is arranged at an interval from the second side plate (152) facing the third opening (153) and encloses a communication port therewith, and the communication port connects the first branch and the second branch to form the gas-liquid separation channel (11).

7. The air guide member according to claim 5, wherein Along the first preset direction X, the fourth opening (154) is aligned with the second opening (144), the fourth opening (154) constitutes the outlet (112), and an inlet (111) is enclosed and formed among the second bottom plate (151), the first bottom plate (141) and a part of the first side plate (142).

8. The air guiding member according to claim 5, characterized in that, The first bottom plate (141) and the three first side plates (142) are of an integrally bent and formed structure, and a first gap (145) is formed between two adjacent first side plates (142); and / or, the second bottom plate (151) and the three second side plates (152) are of an integrally bent and formed structure, and a second gap (155) is formed between two adjacent second side plates (152).

9. A gas-liquid separator, characterized in that, The gas-liquid separator includes a housing assembly (40), an air inlet pipe (50) and a gas guiding member (10) as described in any one of claims 1-8. The housing assembly (40) is provided with a cavity (20) and an air outlet (30) communicating with the cavity (20). The air inlet pipe (50) is connected to the housing assembly (40) and communicates with the cavity (20). The gas guiding member (10) is installed in the cavity (20), and the inlet (111) communicates with the cavity (20), and the outlet (112) communicates with the air outlet (30).

10. The gas-liquid separator according to claim 9, characterized in that, The housing assembly (40) includes an upper end cover (41), a lower end cover (42) and a cylinder body (43). The upper end cover (41) and the lower end cover (42) are respectively connected to two ends of the cylinder body (43) and enclose the cavity (20) therewith. The air outlet (30) is opened on the upper end cover (41), and the air inlet pipe (50) penetrates through the upper end cover (41) and extends into the cavity (20).

11. The gas-liquid separator according to claim 10, characterized in that, One end of the upper end cover (41) and / or the lower end cover (42) is provided with a contraction section (411) that contracts in a direction approaching its own axis and a connection section (412) connected to the contraction section (411). The connection section (412) extends into the cylinder body (43) and is welded to the cylinder body (43), and the junction of the contraction section (411) and the connection section (412) overlaps the end face of the cylinder body (43).

12. The gas-liquid separator according to claim 11, characterized in that, The end face of the cylinder body (43) is configured as an inclined surface (431). One end of the inclined surface (431) abuts against the junction of the contraction section (411) and the connection section (412), and the other end expands outward relative to the contraction section (411). Moreover, a receiving groove (413) is formed by enclosing between the inclined surface (431) and the contraction section (411).

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