Cylinder sleeve of reciprocating compressor

Abstract

The utility model relates to a reciprocating compressor cylinder sleeve which comprises a cylinder body and a cylinder sleeve arranged in the cylinder body. The cylinder sleeve comprises an inner ring and an outer ring, a plurality of supporting plates are further arranged between the inner ring and the outer ring, water through holes are further formed in the supporting plates, cavities between the supporting plates form a water cooling layer, and a water outlet hole and a water inlet hole are further formed in the supporting plate on the outermost side. Limiting grooves are further formed in the air cylinder body and the air cylinder sleeve, and an exhaust hole and an air inlet hole are formed in the two limiting grooves correspondingly. The water-cooling cylinder sleeve has the advantages that the water-cooling layer formed by the supporting plates is arranged, the cylinder sleeve can be effectively cooled, the stability of the cylinder sleeve is improved, and the service life of the cylinder sleeve is prolonged; due to the design of an oil inlet hole and a sealing cover 17, lubricating oil can be added more conveniently, and abrasion of the cylinder sleeve in the working process can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reciprocating compressors, in particular to a cylinder liner of a reciprocating compressor. Background Art

[0002] A reciprocating compressor is a device that changes the volume through the reciprocating motion of a piston or diaphragm in a cylinder to achieve gas pressurization and transportation. Its working principle is that the crankshaft drives the piston through a connecting rod. The up and down movement of the piston causes the change of the cylinder volume. When the piston moves downward, the cylinder volume increases, the intake valve opens, and the exhaust valve closes, and air is inhaled to complete the intake process. When the piston moves upward, the cylinder volume decreases, the outlet valve opens, and the intake valve closes to complete the compression process; the cylinder liner is a key component in a reciprocating compressor, located inside the cylinder, working in cooperation with the piston to jointly form a sealed compression space. The cylinder liner is usually made of wear-resistant materials such as cast iron or alloy steel to reduce the wear of the cylinder wall during the piston movement. In some designs, the cylinder liner can be replaced as a separate component, which makes maintenance and replacement more convenient. However, in large reciprocating compressors, these compressors have complex designs and large volumes. Replacing the cylinder liner requires disassembling a large number of related components, consuming a large amount of time and manpower. Therefore, it is crucial to extend the service life of the cylinder liner. Summary of the Utility Model

[0003] In order to overcome the deficiencies of the above-mentioned existing problems, the utility model provides a cylinder liner of a reciprocating compressor, which can effectively extend the service life, reduce the maintenance cost and downtime.

[0004] The technical solution adopted by the utility model to solve its technical problems is: a cylinder liner of a reciprocating compressor, including a cylinder block and a cylinder liner, the cylinder liner is arranged in the cylinder block; the cylinder liner includes an inner ring and an outer ring, and a plurality of support plates are further arranged between the inner ring and the outer ring. Water through holes are also arranged on the support plates, and the cavity between the support plates forms a water cooling layer. A flow limiting plate is also arranged between the support plates. An outlet hole and an inlet hole are also arranged on the outermost support plate; symmetrically arranged limiting grooves are also arranged at both ends of the cylinder block and the cylinder liner, and the limiting grooves penetrate through the inner ring and the outer ring. An exhaust hole and an intake hole are respectively arranged in the two limiting grooves.

[0005] Preferably, a fixing protrusion matched with the limiting groove is arranged on the cylinder block. Exhaust holes and intake holes are also arranged on the cylinder block to communicate with the exhaust valve and the intake valve. The fixing protrusion is communicated with the exhaust valve and the intake valve, and a sealing layer is also arranged on the surface of the fixing protrusion.

[0006] Preferably, a cylinder head is further arranged at one end of the cylinder block close to the limiting groove, and a sealing ring is also arranged between the cylinder head and the cylinder block.

[0007] Preferably, an oil inlet hole is further provided on the cylinder liner, and a sealing cover 17 is provided on the cylinder block to cooperate with it.

[0008] Preferably, the water through holes on the adjacent support plates are arranged staggeredly.

[0009] The beneficial effects of the present utility model are as follows: by providing a water cooling layer formed by multiple support plates and the setting of a current limiting plate, the cylinder liner can be effectively cooled, the working temperature can be reduced, and the stability and service life of the cylinder liner can be improved; through the cooperation of the limiting groove and the fixing protrusion, the cylinder liner can be prevented from rotating during the working process, and the structural stability can be maintained; the design of the oil inlet hole and the sealing cover 17 makes it more convenient to add lubricating oil, which helps to reduce the wear of the cylinder liner during the working process. Description of the Drawings

[0010] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0011] Figure 1 is a schematic structural diagram of the present utility model;

[0012] Figure 2 is a three-dimensional structural diagram of the cylinder liner;

[0013] Figure 3 is a side-sectional structural diagram of the cylinder liner;

[0014] Figure 4 is a front-view structural diagram of the cylinder liner.

[0015] In the figure, 1, cylinder block; 11, fixing protrusion; 12, exhaust valve; 13, intake valve; 14, sealing layer; 15, cylinder head; 16, sealing ring; 17, sealing cover 17; 2, cylinder liner; 21, inner ring; 22, outer ring; 23, support plate; 24, water through hole; 25, water cooling layer; 26, current limiting plate; 27, limiting groove; 28, exhaust hole; 29, intake hole; 3, water outlet hole; 4, water inlet hole; 5, oil inlet hole. Detailed Embodiments

[0016] All the features disclosed in this specification, or all the steps in any method or process disclosed, except for mutually exclusive features and / or steps, can be combined in any manner.

[0017] Any feature disclosed in this specification (including any additional claims, abstract, and drawings), unless specifically stated, can be replaced by other equivalent or features with similar purposes. That is, unless specifically stated, each feature is only an example of a series of equivalent or similar features.

[0018] According to Figures 1 - 4As shown in the figure, a reciprocating compressor cylinder liner, characterized in that: it includes a cylinder block 1 and a cylinder liner 2, and the cylinder liner 2 is arranged in the cylinder block 1; the cylinder liner 2 includes an inner ring 21 and an outer ring 22, the inner ring 21 is made of wear-resistant material, and the outer ring 22 is thinner than the inner ring 21 to reduce the volume of the cylinder liner 2. A plurality of support plates 23 are also arranged between the inner ring 21 and the outer ring 22 for supporting the inner ring 21 and the outer ring 22 and forming a water-cooling layer 25. A water through-hole 24 is also arranged on the support plate 23, and the cavity between the support plates 23 forms a water-cooling layer 25. A flow-limiting plate 26 is also arranged between the support plates 23 for restricting the flow of the coolant. The flow-limiting plate 26 is not connected to the outermost support plate 23 at the end far from the water outlet hole 3, so that after the coolant enters from the water inlet hole 3 and exits from the water outlet hole 4, it can completely cool the cylinder liner 2 from beginning to end. An water outlet hole 3 and a water inlet hole 4 are also arranged on the outermost support plate 23; symmetrically arranged limiting grooves 27 are also arranged at both ends of the cylinder block 1 and the cylinder liner 2, and the limiting grooves 27 penetrate through the inner ring 21 and the outer ring 22. An exhaust hole 28 and an intake hole 29 are respectively arranged in the two limiting grooves 27. A total of two exhaust holes 28 and two intake holes 29, one in front and one behind, are arranged in the limiting grooves 27 of the cylinder liner 2.

[0019] A fixing protrusion 11 matching with the limiting groove 27 is arranged on the cylinder block 1, which can stably arrange the cylinder liner 2 in the cylinder block 1 and prevent the cylinder liner 2 from rotating during operation. An exhaust hole 28 and an intake hole 29 are also arranged on the cylinder block 1 to connect the exhaust valve 12 and the intake valve 13. The fixing protrusion 11 is connected to the exhaust valve 12 and the intake valve 13. A sealing layer 14 is also arranged on the surface of the fixing protrusion 11 for sealing between the cylinder block 1 and the cylinder liner 2.

[0020] A cylinder head 15 is also arranged at one end of the cylinder block 1 close to the limiting groove 27, and a sealing ring 16 is also arranged between the cylinder head 15 and the cylinder block 1.

[0021] An oil inlet hole 5 is also arranged on the cylinder liner 2, and a sealing cover 17 matching with it is arranged on the cylinder block 1. After opening the sealing cover 17, lubricating oil can be added to the cylinder liner 2 through the oil inlet hole 5 to reduce the wear of the cylinder liner 2 during operation.

[0022] The water through-holes 24 on the adjacent support plates 23 are arranged in a staggered manner, so that the coolant can be effectively poured into the water-cooling layer 25, optimizing the flow of the coolant, ensuring uniform cooling, and improving the water-cooling efficiency and effect.

[0023] During practical use, the piston enters from the end provided with the water outlet hole 4, and the exhaust valve 12 and the intake valve 13 provided at both ends are alternately opened during the movement of the piston; during operation, the coolant enters the water-cooling layer 25 from the water inlet hole 3, passes through the water passing holes 24 provided on the support plate 23, and is discharged through the water outlet hole 3 to form a cycle.

[0024] This design scheme is ingenious. Through the water-cooling layer 25 formed by arranging multiple support plates 23 and the arrangement of the current-limiting plate 26, the cylinder liner can be cooled more effectively, the working temperature can be reduced, and the stability and service life of the cylinder liner can be improved; through the cooperation of the limiting groove 27 and the fixing protrusion 11, the cylinder liner can be prevented from rotating during operation and the structural stability can be maintained; the design of the oil inlet hole 5 and the sealing cover 17 makes it more convenient to add lubricating oil, which helps to reduce the wear of the cylinder liner during operation.

[0025] The present utility model is not limited to the foregoing specific embodiments. The present utility model extends to any new feature or any new combination disclosed in this specification, as well as any new method or process step or any new combination disclosed.

Claims

1. A reciprocating compressor cylinder liner, characterized in that: It includes a cylinder block (1) and a cylinder liner (2), and the cylinder liner (2) is arranged in the cylinder block (1); the cylinder liner (2) includes an inner ring (21) and an outer ring (22), and a plurality of support plates (23) are further arranged between the inner ring (21) and the outer ring (22). Water through holes (24) are also arranged on the support plates (23). The cavity between the support plates (23) forms a water cooling layer (25). A flow limiting plate (26) is also arranged between the support plates (23). An outlet hole (3) and an inlet hole (4) are also arranged on the outermost support plate (23); symmetrically arranged limiting grooves (27) are also arranged at both ends of the cylinder block (1) and the cylinder liner (2). The limiting grooves (27) penetrate through the inner ring (21) and the outer ring (22), and an exhaust hole (28) and an intake hole (29) are respectively arranged in the two limiting grooves (27).

2. The reciprocating compressor cylinder liner according to claim 1, wherein: A fixing protrusion (11) matching with the limiting groove (27) is arranged on the cylinder block (1). An exhaust hole (28) and an intake hole (29) are also arranged on the cylinder block (1) to connect an exhaust valve (12) and an intake valve (13). The fixing protrusion (11) is connected and arranged with the exhaust valve (12) and the intake valve (13). A sealing layer (14) is also arranged on the surface of the fixing protrusion (11).

3. A reciprocating compressor cylinder liner according to claim 1, characterized in that: A cylinder head (15) is also arranged at one end of the cylinder block (1) close to the limiting groove (27). A sealing ring (16) is also arranged between the cylinder head (15) and the cylinder block (1).

4. A reciprocating compressor cylinder liner according to claim 1, characterized in that: An oil inlet hole (5) is also arranged on the cylinder liner (2). A sealing cover (17) matching with it is arranged on the cylinder block (1).

5. A reciprocating compressor cylinder liner according to claim 1, characterized in that: The water through holes (24) on adjacent support plates (23) are arranged staggeredly.

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