Conveying pipe and air conditioner

Abstract

The utility model discloses a conveying pipe and an air conditioner. The conveying pipe is used for conveying a refrigerant into the evaporator, the conveying pipe comprises a pipe body and a rectification part, the pipe body comprises an inlet part, a bent part and an outlet part, the inlet part is connected with the outlet part through the bent part, the rectification part is arranged in the bent part and / or the outlet part, and the rectification part is arranged in the bent part and / or the outlet part. And the rectifying part is configured to rectify the refrigerant entering the outlet part, so that the refrigerant is more uniformly distributed in the outlet part. Before flowing into the evaporator, the bias-flow wall-attached liquid refrigerant in the conveying pipe tends to a peripheral uniform annular flow state after being adjusted by the rectifying part arranged in the conveying pipe, so that the bias-flow wall-attached liquid refrigerant can be uniformly shunted after entering the evaporator, and the heat exchange capacity of the evaporator is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to air conditioner technical field especially relates to a conveying pipe and air conditioner. BACKGROUND

[0002] In the related art, the refrigerant is throttled by the throttling component, so that the pressure of the refrigerant is reduced to enter the two-phase state, and the two-phase refrigerant is transported through the pipeline to reach the evaporator to evaporate and absorb heat. Due to the complex and variable trend of the transportation pipeline, the three-dimensional bending condition may occur, and the gas-liquid density difference exists in the two-phase refrigerant, so that the liquid refrigerant deviates to the outer edge of the bending part when flowing through the bending part due to the influence of the centrifugal force, so that the liquid refrigerant deviates to the outside in the subsequent flowing process, so that the liquid refrigerant enters the evaporator, and the flow is unevenly distributed in the evaporator, thereby reducing the heat exchange capacity of the evaporator. SUMMARY

[0003] The utility model embodiment provides a kind of conveying pipe and air conditioner to solve the technical problem that refrigerant is affected by the centrifugal force of the bending part of conveying pipe before entering evaporator, which leads to uneven distribution when entering evaporator, so as to reduce the heat exchange capacity of evaporator.

[0004] The utility model embodiment provides a kind of conveying pipe for conveying refrigerant into evaporator, the conveying pipe includes pipeline body and rectifier portion, the pipeline body includes import portion, bending part and export portion, the import portion is connected with the export portion by the bending part, the rectifier portion is located in the bending part and / or the export portion, the rectifier portion is configured to rectify the refrigerant entering the export portion to make the refrigerant more evenly distributed in the export portion.

[0005] In this way, the liquid refrigerant that flows in the conveying pipe and adheres to the wall tends to be evenly annular flow before flowing into the evaporator after being adjusted by the rectifier portion arranged in the conveying pipe, so that it can be evenly distributed when entering the evaporator, thereby improving the heat exchange capacity of the evaporator.

[0006] In some embodiments, the rectifier portion includes a plurality of rectifier portions arranged in the bending part and / or the export portion.

[0007] In this way, by arranging the rectifier portion in the bending part and / or the export portion, the vortex or transverse airflow disturbance generated by the import portion can be eliminated, and the two-phase refrigerant flows more smoothly and evenly. Moreover, multiple rectifier portions can increase the rectification effect and further improve the heat exchange capacity of the evaporator.

[0008] In some embodiments, in the case where the rectifier portion is arranged in the bending part, the bending part is provided with the rectifier portion towards the inner wall surface of the space surrounded by the pipeline body.

[0009] Thus, in the case that the rectifying portion is arranged at the bending portion, the rectifying portion can optimize the fluid flow path of the bending portion, reduce the centrifugal force of the refrigerant in the bending portion, thereby reducing the resistance of the refrigerant in the bending portion, and helping to reduce the energy consumption of the refrigerant in the bending portion.

[0010] In some embodiments, in the case that the rectifying portion is arranged at the bending portion, the rectifying portion and the bending portion are integrally formed.

[0011] Thus, by integrally forming the bending portion and the rectifying portion, the structural strength and stability of the conveying pipe can be improved, and there is no connection between the bending portion and the rectifying portion, thereby improving the sealing performance of the conveying pipe. Integrally forming the bending portion and the rectifying portion can reduce the assembly process in the production process, simplify the production process, improve the production efficiency, and reduce the production cost.

[0012] In some embodiments, the outer wall of the bending portion facing away from the space surrounded by the pipe body is recessed inwardly to form the rectifying portion in the bending portion.

[0013] Thus, in the case that the rectifying portion is arranged at the bending portion, the rectifying portion can optimize the fluid flow path of the bending portion, reduce the centrifugal force of the refrigerant in the bending portion, thereby reducing the resistance of the refrigerant in the bending portion, and helping to reduce the energy consumption of the refrigerant in the bending portion.

[0014] In some embodiments, in the case that the rectifying portion is arranged at the outlet portion, the rectifying portion is annular and connected with the inner wall of the outlet portion, the center of the rectifying portion coincides with the axis of the outlet portion, and the rectifying portion comprises a first through hole.

[0015] Thus, in the case that the rectifying portion is arranged at the outlet portion, by arranging the shape of the rectifying portion as annular, the liquid refrigerant in the conveying pipe which is deviated and adheres to the wall can be blocked by the annular rectifying portion, so that the refrigerant can be concentrated to pass through the first through hole, and the refrigerant can be distributed more uniformly in the outlet portion.

[0016] In some embodiments, in the case that the rectifying portion is arranged at the outlet portion, the rectifying portion is plate-shaped and connected with the inner wall of the outlet portion, and the rectifying portion comprises at least one second through hole.

[0017] Thus, in the case that the rectifying portion is arranged at the outlet portion, by arranging the shape of the rectifying portion as plate-shaped, the liquid refrigerant in the conveying pipe which is deviated and adheres to the wall can be blocked by the plate-shaped rectifying portion, so that the refrigerant can be concentrated to pass through the second through hole, and the refrigerant can be distributed more uniformly in the outlet portion.

[0018] In some embodiments, in the case that the rectifying portion is arranged at the outlet portion, the rectifying portion is a spiral structure arranged on the inner wall of the outlet portion.

[0019] Thus, when the rectifier is located at the outlet, by setting the shape of the rectifier to a spiral, the refrigerant can be concentrated to pass through the through hole, thereby forming a spiral flow of the refrigerant in the outlet. This helps to eliminate eddies and turbulence in the refrigerant, improve the uniformity and stability of the refrigerant flow, and make the refrigerant distribution in the outlet more uniform.

[0020] In some embodiments, when the rectifier is located at the outlet, the rectifier is fan-shaped and connected to the inner wall of the outlet, and the rectifier includes at least one fourth through hole and at least three fan blades.

[0021] Thus, when the rectifier is located at the outlet, by setting the shape of the rectifier to fan blade, the liquid refrigerant that flows off the wall in the delivery pipe can be blocked by the fan blade, so that the refrigerant can be concentrated and pass through the fourth through hole, making the refrigerant more evenly distributed in the outlet.

[0022] An air conditioner according to an embodiment of the present invention includes a delivery pipe and an evaporator as described in any of the above embodiments, wherein the outlet is connected to the evaporator.

[0023] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of this invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a schematic diagram of the connection structure between the conveying pipe and the evaporator according to an embodiment of this utility model;

[0026] Figure 2 This is one of the structural schematic diagrams of the conveying pipe according to an embodiment of this utility model;

[0027] Figure 3 This is the second schematic diagram of the conveying pipe according to an embodiment of the present utility model;

[0028] Figure 4 This is the third schematic diagram of the conveying pipe according to an embodiment of the present invention;

[0029] Figure 5 This is the fourth schematic diagram of the conveying pipe according to an embodiment of this utility model;

[0030] Figure 6 This is the fifth schematic diagram of the conveying pipe according to an embodiment of the present invention;

[0031] Figure 7This is the sixth schematic diagram of the conveying pipe according to an embodiment of this utility model.

[0032] Explanation of key component reference numerals:

[0033] 100, Evaporator; 200, Delivery pipe; 210, Pipe body; 211, Inlet; 212, Bend; 213, Outlet; 220, Rectifier; 221, First through hole; 300, Bend space. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] This disclosure provides many different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described herein. Of course, these are merely examples and are not intended to limit the present invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0039] Please see Figures 1 to 7 The present invention provides a conveying pipe 200 for conveying refrigerant into an evaporator 100. The conveying pipe 200 includes a pipe body 210 and a rectifier 220. The pipe body 210 includes an inlet 211, a bend 212 and an outlet 213. The inlet 211 is connected to the outlet 213 through the bend 212. The rectifier 220 is disposed in the bend 212 and / or the outlet 213. The rectifier 220 is configured to rectify the refrigerant entering the outlet 213 so that the refrigerant is more evenly distributed in the outlet 213.

[0040] Thus, the liquid refrigerant that flows along the wall in the delivery pipe 200 tends to form a uniform annular flow after being adjusted by the rectifier 220 set in the delivery pipe 200 before flowing into the evaporator 100. This allows it to be evenly distributed after entering the evaporator 100, thereby improving the heat exchange capacity of the evaporator 100.

[0041] The evaporator 100 is a device used to convert liquid substances into gaseous substances. It can be used in air conditioners (not shown in the attached diagram). By allowing the liquid refrigerant entering the evaporator 100 to absorb heat, the liquid refrigerant can be converted into gaseous refrigerant, thus achieving cooling and heating in the air conditioner. For example, the evaporator 100 can be a dry-type evaporator 100, which consists of a shell containing multiple heat exchange tubes arranged in parallel or series. Baffles or guide vanes can be provided on the outside of the heat exchange tubes to guide the flow of cooling water, ensuring that the cooling water can evenly cover the surface of all heat exchange tubes and improve heat transfer efficiency. The top of the dry-type evaporator 100 often has a gas separation space to separate the gaseous refrigerant from the liquid refrigerant, ensuring that only the gaseous refrigerant is sent to the compressor.

[0042] Specifically, the evaporator 100 can be connected to the delivery pipe 200, allowing liquid refrigerant to be delivered to the evaporator 100 through the delivery pipe 200. The delivery pipe 200 includes a pipe body 210 and a rectifier 220. The pipe body 210 provides a path for the refrigerant flow, while the rectifier 220, disposed within the pipe body 210, adjusts the flow direction of the liquid refrigerant, ensuring its uniform distribution within the pipe body 210.

[0043] In practical applications of air conditioners, the delivery pipe 200 needs to be configured to fit the structure of the air conditioner, resulting in a complex and varied routing, including three-dimensional bends. As the liquid refrigerant flows through these bends, it is subjected to centrifugal force, causing it to flow tightly against the inner wall of the delivery pipe 200. Therefore, the pipe body 210 can include an inlet 211, a bend 212, and an outlet 213. The inlet 211 connects to the outlet 213 via the bend 212, allowing the refrigerant within the pipe body 210 to sequentially pass through these three sections. The outlet 213 connects to the evaporator 100, enabling the liquid refrigerant within the pipe body 210 to enter the evaporator 100.

[0044] A rectifier 220 is disposed within the bend 212 and / or the outlet 213. The rectifier 220 is configured to rectify the refrigerant entering the outlet 213, resulting in a more uniform distribution of the refrigerant within the outlet 213. For example, the rectifier 220 can be disposed within the bend 212, so that the liquid refrigerant, after entering the bend 212, can be rectified by the rectifier 220, resulting in a more uniform distribution of the liquid refrigerant after flowing into the outlet 213; or the rectifier 220 can be disposed within the outlet 213, so that the liquid refrigerant, after flowing from the bend 212 into the outlet 213, can be rectified by the rectifier 220 disposed within the outlet 213, resulting in a more uniform distribution of the liquid refrigerant after flowing out of the rectifier 220. The liquid refrigerant distribution in the inlet and outlet sections 213 is more uniform; the rectifier section 220 can be simultaneously provided in the bend section 212 and the outlet section 213, so that after the liquid refrigerant enters the bend section 212, it can be rectified by the rectifier section 220, and after the liquid refrigerant flows from the bend section 212 into the outlet section 213, it can be rectified by the rectifier section 220 provided in the outlet section 213, so that the liquid refrigerant distribution in the outlet section 213 after flowing out of the rectifier section 220 is more uniform.

[0045] Please see Figures 2 to 7 In some embodiments, the rectifier 220 includes a plurality of rectifiers 220 disposed within the bending portion 212 and / or the outlet portion 213.

[0046] Thus, by providing rectifiers 220 within the bend 212 and / or outlet 213, disturbances such as vortices or lateral airflow generated at the bend inlet 211 can be eliminated, resulting in a smoother and more balanced flow of the two-phase refrigerant. Furthermore, multiple rectifiers 220 can enhance the rectification effect, further improving the heat exchange capacity of the evaporator 100.

[0047] Specifically, the number of rectifiers 220 can be multiple, and is not limited here. For example, the number of rectifiers 220 can be 2, 3, 4, etc. Multiple rectifiers 220 can be provided within the bend section 212 and / or the outlet section 213. For example, multiple rectifiers 220 can be provided within the bend section 212, so that after the liquid refrigerant enters the bend section 212, it can be rectified sequentially by the multiple rectifiers 220, thereby making the liquid refrigerant more evenly distributed after flowing into the outlet section 213; multiple rectifiers 220 can be provided within the outlet section 213, so that after the liquid refrigerant flows from the bend section 212 to the outlet section 213, it can be rectified sequentially by the multiple rectifiers 220 provided within the outlet section 213, so that the liquid refrigerant is more evenly distributed after flowing out of the rectifiers 220. The liquid refrigerant entering the outlet section 213 is more evenly distributed; multiple rectifiers 220 can be simultaneously provided in the bend section 212 and the outlet section 213, so that after the liquid refrigerant enters the bend section 212, it can be rectified by the multiple rectifiers 220 in sequence, and after the liquid refrigerant flows from the bend section 212 into the outlet section 213, it can be rectified by the multiple rectifiers 220 provided in the outlet section 213 in sequence, so that the liquid refrigerant entering the outlet section 213 after flowing out of the rectifiers 220 is more evenly distributed.

[0048] Please see Figure 2 In some embodiments, when the rectifier 220 is provided on the bend 212, the rectifier 220 protrudes from the inner wall of the space enclosed by the pipe body 210.

[0049] Thus, when the rectifier 220 is provided in the bend 212, the rectifier 220 can optimize the fluid flow path of the bend 212, reduce the centrifugal force on the refrigerant in the bend 212, thereby reducing the resistance on the refrigerant in the bend 212 and helping to reduce the energy consumption of the refrigerant in the bend.

[0050] Specifically, since the delivery pipe 200 needs to be adapted to the structure of the air conditioner, the pipe body 210 includes a bend 212, and the inlet 211, bend 212 and outlet 213 are connected in sequence to form a bend space 300.

[0051] When the rectifier 220 is provided in the bend 212, the rectifier 220 can be protruded on the inner wall surface of the bend 212 facing the bend space 300. As a result, when the liquid refrigerant entering the bend 212 flows through the rectifier 220, the liquid refrigerant that is biased and attached to the wall tends to a uniform annular flow state, thereby alleviating the bias phenomenon of liquid refrigerant at the outlet 213.

[0052] The shape of the rectifier 220 is not limited to a circular arc surface; it can be any concave or convex shape. For example, the shape of the rectifier 220 can be a frustum, a truncated cone, etc.

[0053] Please see Figure 3 In some embodiments, when the rectifier 220 is provided in the bending portion 212, the rectifier 220 and the bending portion 212 are integrally formed.

[0054] Thus, by integrally molding the bending portion 212 and the rectifier portion 220, the structural strength and stability of the conveying pipe 200 can be improved, and the absence of a connection between the bending portion 212 and the rectifier portion 220 enhances the sealing performance of the conveying pipe 200. Integrating the bending portion 212 and the rectifier portion 220 reduces assembly steps in the production process, simplifies the production flow, improves production efficiency, and reduces production costs.

[0055] Specifically, when the rectifying part 220 is provided in the bending part 212, the bending part 212 and the rectifying part 220 can be manufactured using an integral molding process, and the bending part 212 can be recessed inward on the outer wall facing away from the bending space 300 to form the rectifying part 220 on the inner sidewall of the bending part 212. For example, common casting methods for integral molding of the bending part 212 and the rectifying part 220 include sand casting, pressure casting, and gas pressure casting. For example, by injecting molten metal or alloy into a pre-made mold, and then allowing it to solidify and cool, the integrally molded bending part 212 and the rectifying part 220 are formed.

[0056] The bending portion 212 and the straightening portion 220 can be integrally formed by forging. Common forging methods include free forging, die forging, and extrusion forging. For example, by heating the metal material to a temperature that is easy to deform, pressure is applied in a mold to plastically deform it into the integrally formed bending portion 212 and straightening portion 220.

[0057] The bending portion 212 and the straightening portion 220 can be integrally formed by plastic forming. For example, the bending portion 212 and the straightening portion 220 can be integrally formed by processing metal materials through stretching, stamping, rolling and other processes.

[0058] The bending portion 212 and the rectifying portion 220 can be integrally formed by laser melting. For example, the bending portion 212 and the rectifying portion 220 can be integrally formed by locally heating the material with a laser beam to melt it and then controlling the deformation.

[0059] The integral molding structure of the bending section 212 and the rectifier section 220 increases the connection strength between them, preventing loosening or detachment during use. Because the bending section 212 and the rectifier section 220 are integrally molded, the connection between them is typically tighter, contributing to a better seal and preventing airflow leakage or the ingress of external impurities. The integral molding structure reduces the connection gap between the bending section 212 and the rectifier section 220, thereby reducing resistance to refrigerant flow and allowing for smoother refrigerant flow. The integral molding structure also results in a cleaner and more aesthetically pleasing appearance, meeting the aesthetic requirements of modern air conditioning products. Furthermore, the integral molding process typically offers higher production efficiency, shortening the production cycle and reducing production costs.

[0060] Please see Figure 4 In some embodiments, when the rectifier 220 is provided at the outlet 213, the rectifier 220 is annular and connected to the inner wall of the outlet 213, and the center of the rectifier 220 coincides with the axis of the outlet 213.

[0061] Thus, when the rectifier 220 is located at the outlet 213, by setting the shape of the rectifier 220 to be annular, the liquid refrigerant that flows off the wall in the delivery pipe 200 can be blocked by the annular rectifier 220, so that the refrigerant can be concentrated to pass through the first through hole 221, making the refrigerant more evenly distributed in the outlet 213.

[0062] Specifically, when the rectifier 220 is provided at the outlet 213, the rectifier 220 can be annular in shape and can be connected to the inner wall of the outlet 213, so that the center of the annular rectifier 220 can coincide with the axis of the outlet 213. For example, when the rectifier 220 is provided at the outlet 213, the shape of the annular rectifier 220 is not limited to a circle, but can also be elliptical, square, rhomboid or any polygonal shape.

[0063] The annular rectifier section 220 has through holes that allow liquid refrigerant to pass through. When the liquid refrigerant flows off-center and adheres to the wall, it is blocked by the annular rectifier section 220, allowing it to pass through the through holes and enter the outlet section 213. Furthermore, the adjustment of the through holes allows the liquid refrigerant to move towards a uniform annular flow state.

[0064] Please see Figure 5 In some embodiments, when the rectifier 220 is provided at the outlet 213, the rectifier 220 is plate-shaped and connected to the inner wall of the outlet 213, and the rectifier 220 includes at least one first through hole 221.

[0065] Thus, when the rectifier 220 is located at the outlet 213, by setting the shape of the rectifier 220 as a plate, the liquid refrigerant that flows off the wall in the delivery pipe 200 can be blocked by the plate-shaped rectifier 220, so that the refrigerant can be concentrated and pass through the first through hole 221, making the refrigerant more evenly distributed in the outlet 213.

[0066] Specifically, when the rectifier 220 is provided at the outlet 213, the shape of the rectifier 220 can be plate-shaped and the rectifier 220 can be connected to the inner wall of the outlet 213. For example, when the rectifier 220 is provided at the outlet 213, the shape of the plate-shaped rectifier 220 is not limited to elliptical, square, rhomboid, arbitrary polygonal, or other shapes.

[0067] The plate-shaped rectifier 220 includes a first through-hole 221, which allows liquid refrigerant to pass through the rectifier 220. The number of first through-holes 221 can be multiple and is not limited here. The shape of the first through-holes 221 includes various opening forms, such as round holes, square holes, irregularly shaped holes, etc. Furthermore, the spacing between the first through-holes 221 can be uniform or non-uniform, and the multiple first through-holes 221 can be in a single row or multiple rows.

[0068] When the liquid refrigerant flowing along the wall passes through the annular rectifier section 220, it can be blocked by the plate-shaped rectifier section 220, so that the liquid refrigerant can pass through the multiple first through holes 221 and enter the outlet section 213. Furthermore, the liquid refrigerant flowing along the wall can tend to a uniform annular flow state after being adjusted by the first through holes 221.

[0069] Please see Figure 6 In some embodiments, when the rectifier 220 is provided at the outlet 213, the rectifier 220 is a spiral structure provided on the inner wall of the outlet 213.

[0070] Thus, when the rectifier 220 is located at the outlet 213, by setting the shape of the rectifier 220 to a spiral shape, the refrigerant can be concentrated to pass through the through hole, thereby forming a spiral flow of the refrigerant in the outlet 213. This helps to eliminate eddies and turbulence in the refrigerant, improve the uniformity and stability of the refrigerant flow, and make the refrigerant more evenly distributed in the outlet 213.

[0071] Specifically, when the rectifier 220 is provided at the outlet 213, the shape of the rectifier 220 can be spiral and the rectifier 220 can be connected to the inner wall of the outlet 213. For example, when the rectifier 220 is provided at the outlet 213, the spiral rectifier 220 can be in a counterclockwise spiral shape or a clockwise rotating shape.

[0072] The spiral-shaped rectifying section 220 has through holes, and the number of through holes can be multiple, which is not limited here. As a result, when the liquid refrigerant flowing towards the wall passes through the spiral-shaped rectifying section 220, it can be blocked by the spiral-shaped rectifying section 220, so that the liquid refrigerant can pass through the multiple through holes and enter the outlet section 213. Furthermore, the liquid refrigerant flowing towards the wall can tend to a uniform annular flow state after being adjusted by the through holes.

[0073] It should be noted that the spiral-shaped rectifier 220 can guide the refrigerant to flow more smoothly within the delivery pipe 200, effectively reducing refrigerant resistance and improving refrigerant delivery efficiency. The spiral-shaped rectifier 220 creates a spiral flow of refrigerant within the delivery pipe 200, helping to eliminate eddies and turbulence in the refrigerant and improving the uniformity and stability of the refrigerant flow. The spiral-shaped rectifier 220 is tightly integrated with the inner wall of the delivery pipe 200, increasing the compressive strength and stability of the delivery pipe 200 and preventing deformation or rupture due to refrigerant pressure. The spiral-shaped rectifier 220 can adapt to various complex refrigerants, including viscous and corrosive refrigerants, ensuring stable refrigerant flow within the delivery pipe 200. During refrigerant delivery, the spiral-shaped rectifier reduces the impact of the refrigerant on the inner wall of the delivery pipe 200, reducing vibration and noise, and improving the stability and safety of the delivery pipe 200.

[0074] Please see Figure 7 In some embodiments, when the rectifier 220 is provided at the outlet 213, the rectifier 220 is fan-shaped and connected to the inner wall of the outlet 213.

[0075] Thus, when the rectifier 220 is located at the outlet 213, by setting the shape of the rectifier 220 as a fan blade, the liquid refrigerant that flows off the wall in the delivery pipe 200 can be blocked by the fan blade, so that the refrigerant can be concentrated and pass through the through hole, making the refrigerant more evenly distributed in the outlet 213.

[0076] Specifically, when the rectifier 220 is provided at the outlet 213, the rectifier 220 can be fan-shaped, and the fan-shaped rectifier 220 can be connected to the inner wall of the outlet 213. The blade angle of the fan-shaped rectifier 220 can be an acute angle or an obtuse angle, such as 30 degrees, 60 degrees or 120 degrees.

[0077] The fan-shaped rectifier 220 has through holes, and the number of through holes can be multiple, and the number of through holes corresponds to the number of fan blades. For example, when the rectifier 220 has 3 fan blades, the number of through holes is 3; when the rectifier 220 has 4 fan blades, the number of through holes is 4.

[0078] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0079] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A delivery pipe for delivering refrigerant into an evaporator, characterized in that, The delivery pipe includes a pipe body and a rectifier. The pipe body includes an inlet, a bend, and an outlet. The inlet is connected to the outlet through the bend. The rectifier is located in the bend and / or the outlet. The rectifier is configured to rectify the refrigerant entering the outlet so that the refrigerant is more evenly distributed in the outlet.

2. The conveying pipe according to claim 1, characterized in that, The rectifier includes multiple rectifiers, which are disposed within the bending section and / or the outlet section.

3. The conveying pipe according to claim 1, characterized in that, When the rectifier is provided at the bend, the rectifier is provided on the inner wall of the space enclosed by the pipe body.

4. The conveying pipe according to claim 1, characterized in that, When the rectifier is located on the bending portion, the rectifier and the bending portion are integrally formed.

5. The conveying pipe according to claim 4, characterized in that, The outer wall of the bend facing away from the space enclosed by the pipe body is recessed into the bend to form the straightening section within the bend.

6. The conveying pipe according to claim 1, characterized in that, When the rectifier is located at the outlet, the rectifier is annular and connected to the inner wall of the outlet, and the center of the rectifier coincides with the axis of the outlet.

7. The conveying pipe according to claim 1, characterized in that, When the rectifier is located at the outlet, the rectifier is plate-shaped and connected to the inner wall of the outlet, and the rectifier includes at least one first through hole.

8. The conveying pipe according to claim 1, characterized in that, When the rectifier is located at the outlet, the rectifier is a spiral structure located on the inner wall of the outlet.

9. The conveying pipe according to claim 1, characterized in that, When the rectifier is located at the outlet, the rectifier is fan-shaped and connected to the inner wall of the outlet.

10. An air conditioner, characterized in that, It includes the delivery pipe and evaporator as described in any one of claims 1 to 9, wherein the outlet is connected to the evaporator.

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