Flow path assembly and reciprocating compressor

Abstract

The application provides a flow path assembly and a reciprocating compressor. The flow path assembly comprises a support for supporting a cylinder; the support comprises a hollow pipe; a separated air inlet channel and an air outlet channel are arranged in the hollow pipe; the air inlet channel is communicated with an air inlet of the cylinder; and the air outlet channel is communicated with an air outlet of the cylinder. The flow path and the support of the compressor are combined into one body, so that the air inlet channel and the air outlet channel are integrally formed, the process and installation cost can be reduced, the traditional pipe connection loosening is avoided, and the reliability is improved.

Description

Technical Field

[0001] This application belongs to the field of reciprocating compressor technology, specifically relating to a flow path assembly and a reciprocating compressor. Background Technology

[0002] Currently, four-cylinder reciprocating compressors use an external flow path, located outside the cylinder and typically connected by flexible hoses. The cylinder is fixed and supported by a solid bracket. During compressor operation, pipe connections may loosen, leading to quality issues, reduced reliability, and consequently, a shorter compressor lifespan. This, in turn, increases installation complexity and costs. Summary of the Invention

[0003] Therefore, this application provides a flow path assembly and a reciprocating compressor, which can solve the problem of pipeline connection loosening during operation in the prior art.

[0004] To address the aforementioned problems, this application provides a flow path component, comprising:

[0005] A bracket for supporting a cylinder; the bracket includes a hollow tube.

[0006] The hollow tube is provided with a separate air intake channel and an exhaust channel. The air intake channel is connected to the air intake port of the cylinder, and the exhaust channel is connected to the exhaust port of the cylinder.

[0007] Optionally, the hollow tube is provided with an axially extending baffle, and the two sides of the baffle and the inner wall of the hollow tube form the air intake channel and the air exhaust channel.

[0008] Optionally, the hollow tube is bent into a ring shape, and a plurality of radially extending branch pipes are provided on the hollow tube, the branch pipes being evenly distributed around the circumference of the hollow tube; the branch pipes connect the hollow tube and the cylinder.

[0009] Optionally, the branch pipe is provided with a separate air intake branch and an air exhaust branch, the air intake branch connecting the air intake channel and the air intake port, and the air exhaust branch connecting the air exhaust channel and the air exhaust port.

[0010] Optionally, the hollow tube sidewall is provided with at least two through holes respectively connected to the air intake channel and the air exhaust channel.

[0011] According to another aspect of this application, a reciprocating compressor is provided, including the flow path assembly as described above.

[0012] Optionally, the hollow tube is arranged in a ring shape, and the reciprocating compressor further includes multiple cylinder assemblies, which are evenly distributed along the circumference of the hollow tube and located inside the hollow tube.

[0013] Optionally, multiple cylinder assemblies share a single motor, and the output shaft of the motor is configured as an eccentric shaft, connected to the pistons of the multiple cylinder assemblies.

[0014] Optionally, the hollow tube is fixedly connected to the motor.

[0015] Optionally, the hollow tube is fixedly connected to the motor housing via a connector.

[0016] This application provides a flow path assembly, comprising: a bracket for supporting a cylinder; the bracket includes a hollow tube; the hollow tube has a separated air intake channel and an air exhaust channel, the air intake channel being connected to the air intake port of the cylinder, and the air exhaust channel being connected to the air exhaust port of the cylinder.

[0017] This application adopts a method of integrating the flow path and the compressor bracket into one piece, which can realize the intake and exhaust channels as a single unit, reduce process and installation costs, avoid the loosening of traditional pipeline connections, and increase reliability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a four-cylinder reciprocating compressor according to an embodiment of this application;

[0019] Figure 2 This is a perspective structural diagram of the flow path component according to an embodiment of this application;

[0020] Figure 3 This is a schematic diagram of the fluid flow direction in an embodiment of this application.

[0021] The reference numerals in the attached figures are as follows:

[0022] 1. Hollow tube; 11. Intake passage; 12. Exhaust passage; 13. Baffle; 2. Cylinder assembly; 3. Motor; 4. Eccentric shaft; 5. Branch pipe; 51. Intake branch; 52. Exhaust branch; 6. Vent pipe. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application 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 can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0025] See also Figures 1 to 3 As shown, according to an embodiment of this application, a flow path component includes:

[0026] A bracket for supporting the cylinder; the bracket includes a hollow tube 1.

[0027] The hollow tube 1 is provided with a separate air intake channel 11 and an exhaust channel 12. The air intake channel 11 is connected to the air intake port of the cylinder, and the exhaust channel 12 is connected to the exhaust port of the cylinder.

[0028] This application adopts a method of integrating the flow path and the compressor bracket into one piece, which can realize the intake channel 11 and the exhaust channel 12 as a single unit, which can reduce the process and installation costs, avoid the loosening of traditional pipeline connections, and increase reliability.

[0029] The traditional solid support structure is replaced with a hollow tube 1, with the interior of the hollow tube 1 divided into an intake channel 11 and an exhaust channel 12. Alternatively, two hollow tubes 1, which serve as intake channels 11 and exhaust channels 12 respectively, can be arranged side by side as one unit. Or, two hollow tubes 1, which serve as intake channels 11 and exhaust channels 12 respectively, can be inserted inside the hollow tube 1. Therefore, the support of this application can not only support the cylinder, but also serve as a flow path, reducing process and installation costs, and avoiding the problem of loosening of traditional hose connections during use.

[0030] In some embodiments, the hollow tube 1 is provided with an axially extending baffle 13, and the two sides of the baffle 13 and the inner wall of the hollow tube 1 form the air intake channel 11 and the exhaust channel 12.

[0031] Along the axial direction of the hollow tube 1, a baffle 13 is provided inside the hollow tube 1. The two sides of the baffle 13 are the air intake channel 11 and the exhaust channel 12, respectively. The flow area of ​​the air intake channel 11 and the exhaust channel 12 is maximized, saving space.

[0032] During manufacturing, the hollow tube 1 can be split in half axially. One half is sealed and connected to the partition 13 to form the exhaust channel 12, and the other half is sealed and connected to the other side of the partition 13 to form the intake channel 11.

[0033] In some embodiments, the hollow tube 1 is bent into a ring shape, and a plurality of radially extending branch pipes 5 are provided on the hollow tube 1, the branch pipes 5 being evenly distributed around the circumference of the hollow tube 1; the branch pipes 5 connect the hollow tube 1 and the cylinder.

[0034] When the flow path assembly of this application is used in a four-cylinder reciprocating compressor, the support is set in a ring shape. At this time, a branch pipe 5 is set in the radial direction of the hollow tube 1 to facilitate the connection of cylinders in different positions. Of course, the flow path assembly of this application can also be applied to two-cylinder and three-cylinder reciprocating compressors, or even six-cylinder compressors. The cross-sectional shape of the hollow tube 1 is not limited to a circle, but can also be semi-elliptical or square.

[0035] In some embodiments, the branch pipe 5 is provided with a separate air intake branch 51 and an exhaust branch 52. The air intake branch 51 connects the air intake channel 11 and the air intake port, and the exhaust branch 52 connects the exhaust channel 12 and the exhaust port.

[0036] Branch pipe 5 can also adopt the same structure as hollow pipe 1, with separate intake branch 51 and exhaust branch 52 inside, so as to realize the intake and exhaust communication between hollow pipe 1 and cylinder.

[0037] In some embodiments, the hollow tube 1 has at least two through holes on its side wall that are respectively connected to the air intake channel 11 and the exhaust channel 12.

[0038] A through hole is provided on the side wall of the hollow tube 1 to facilitate the introduction or export of gas. Multiple through holes can be provided as needed. In terms of the specific structure of the through hole, the short tube can be divided into two passages to connect the intake passage 11 and the exhaust passage 12. In this way, the short tube is vertically connected to the hollow tube 1.

[0039] According to another aspect of this application, a reciprocating compressor is provided, including the flow path assembly as described above.

[0040] In some embodiments, the hollow tube 1 is arranged in a ring shape, and the reciprocating compressor further includes a plurality of cylinder assemblies 2, which are evenly distributed along the circumference of the hollow tube 1 and disposed inside the hollow tube 1.

[0041] The annular hollow tube 1 has multiple cylinder assemblies 2 inside, and a single flow path assembly can simultaneously supply the intake and exhaust of multiple cylinder assemblies 2, saving on structure and cost.

[0042] In some embodiments, a plurality of cylinder assemblies 2 share a motor 3, and the output shaft of the motor 3 is configured as an eccentric shaft 4, which is connected to the pistons of the plurality of cylinder assemblies 2.

[0043] Multiple cylinder assemblies 2 share a single motor 3. The output shaft of motor 3 is an eccentric shaft 4, which replaces the crankshaft. Taking a four-cylinder reciprocating compressor as an example, two adjacent cylinder assemblies 2 are in the exhaust process, while the other two are in the intake process. The baffle 13 inside the hollow tube 1 separates the air so that they do not interfere with each other. Figure 3 As shown, during the intake and exhaust process of a cylinder, when the cylinder intakes, air enters the intake passage 11 and splits into two, one flowing clockwise and the other counterclockwise. These flows through the intake passage 11 to the intake valve connecting pipe and then into the two adjacent intake cylinders. When the cylinder exhausts, the compressed air enters the exhaust passage 12 through the exhaust valve connecting pipe, flowing clockwise and counterclockwise, and then converges and exits through the hollow pipe 1.

[0044] Figure 2 and 3 As shown, the outer ring is the exhaust channel 12, and the inner ring is the intake channel 11; the two can also be interchanged and used in the same way.

[0045] In some embodiments, the hollow tube 1 is fixedly connected to the motor 3. Preferably, the hollow tube 1 is fixedly connected to the housing of the motor 3 via a connector.

[0046] The hollow tube 1 used as a support not only bears the load but also separates the intake and exhaust. These three components are integrally formed. The support is fixed to the motor 3 housing through connectors. Finally, the support is connected to the end cover through the exhaust valve connecting pipe and the intake valve connecting pipe, thus assembling the entire piston compressor. The force on the piston and cylinder is transmitted to the motor 3 housing through the flow path support.

[0047] It will be readily understood by those skilled in the art that the above embodiments can be freely combined and superimposed without conflict.

[0048] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application. The above description is merely a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this application, and these improvements and modifications should also be considered within the protection scope of this application.

Claims

1. A flow path assembly, characterized by, The application relates to a reciprocating compressor. The hollow pipe (1) is provided with an air inlet channel (11) and an air outlet channel (12) separated by a partition plate (13) extending in the axial direction, the air inlet channel (11) is communicated with the air inlet of the cylinder, and the air outlet channel (12) is communicated with the air outlet of the cylinder; when the cylinder inhales air, the air enters the cylinder from the air inlet channel (11), and when the cylinder discharges air, the air is discharged from the air outlet channel (12). The hollow pipe (1) is bent into a ring shape, a plurality of radial extension branch pipes (5) are arranged on the hollow pipe (1), the branch pipes (5) are uniformly distributed in the circumferential direction of the hollow pipe (1), and the branch pipes (5) are communicated with the hollow pipe (1) and the cylinder.

2. The flow path assembly of claim 1, wherein, The branch pipe (5) is provided with an air inlet branch (51) and an air outlet branch (52) separated by a partition plate (13), the air inlet branch (51) is communicated with the air inlet channel (11) and the air inlet, and the air outlet branch (52) is communicated with the air outlet channel (12) and the air outlet.

3. The flow path assembly of claim 2, wherein, At least two through holes are arranged on the side wall of the hollow pipe (1) and communicated with the air inlet channel (11) and the air outlet channel (12) respectively.

4. The flow path assembly of claim 3, wherein, The application further relates to a flow path assembly comprising the flow path assembly as claimed in any one of claims 1-5.

5. The flow path assembly of any of claims 1-4, wherein, The hollow pipe (1) is arranged in a ring shape, and the reciprocating compressor further comprises a plurality of cylinder assemblies (2) which are uniformly distributed in the circumferential direction of the hollow pipe (1) and arranged in the interior of the hollow pipe (1).

6. A reciprocating compressor characterized by comprising: The plurality of cylinder assemblies (2) share one motor (3), the output shaft of the motor (3) is arranged as an eccentric shaft (4) and connected with the pistons of the plurality of cylinder assemblies (2).

7. The reciprocating compressor of claim 6, wherein, The hollow pipe (1) is fixedly connected with the motor (3).

8. The reciprocating compressor of claim 7, wherein, The hollow pipe (1) is fixedly connected with the shell of the motor (3) through a connecting piece.

9. The reciprocating compressor of claim 8, wherein, ​ 10. The reciprocating compressor of claim 9, wherein, ​

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