Compressor exhaust valve plate capable of improving durability

Abstract

The utility model relates to the technical field of compressors, in particular to a compressor exhaust valve plate capable of improving durability, which comprises an exhaust valve plate body and a coating structure arranged on the surface of the end of the exhaust valve plate body, and the coating structure comprises a stainless steel bottom layer and a polyether ketone surface layer. The stainless steel bottom layer of the coating structure can be fixedly connected with the exhaust valve plate body in a screw mode, the coating structure can be only provided with one stainless steel bottom layer, the stainless steel bottom layer and the exhaust valve plate body are connected through a welding technology, and the coating structure can also be only provided with one polyether ketone surface layer, and the polyether ketone surface layer and the exhaust valve plate body are connected through a bonding technology. According to the technical scheme, the coating structure is arranged on the daily collision end face of the exhaust valve plate body, the polyether ketone surface layer of the coating structure replaces metal materials for collision, noise generated during daily work of the exhaust valve plate is reduced, the coating structure replaces the exhaust valve plate body for abrasion loss, the thickness of the daily collision end face of the exhaust valve plate is increased, and the service life of the exhaust valve plate is prolonged. Therefore, the durability of the exhaust valve plate body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a compressor exhaust valve plate with improved durability. Background Art

[0002] The exhaust valve is responsible for controlling the exhaust flow of the compressor, ensuring that the compressor can discharge the compressed gas according to the set requirements during operation. By adjusting the opening and closing of the exhaust valve, the exhaust volume can be effectively controlled to adapt to different workloads and working conditions. Reasonable exhaust control helps to improve the exhaust efficiency and overall working efficiency of the compressor. When the exhaust valve works normally, it can ensure that the compressed gas is discharged smoothly, reduce energy loss, and thus improve the operating efficiency of the compressor. The main reason for the damage of the existing compressor exhaust valve is that the valve tongue part hits the valve plate valve line during repeated opening and closing. The valve tongue part of the exhaust valve is more seriously damaged, so it needs to be replaced regularly. The replacement cycle is long, and regular shutdowns are required for replacement, which reduces production efficiency and needs to be improved. Therefore, we propose a compressor exhaust valve with improved durability. Utility Model Content

[0003] The purpose of the utility model is to provide a compressor exhaust valve plate with improved durability, which solves the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a compressor exhaust valve plate with improved durability, comprising an exhaust valve plate body and a coating structure arranged on the end surface of the exhaust valve plate body, the coating structure comprising a stainless steel bottom layer and a polyetherketone surface layer.

[0005] Furthermore, a plurality of through holes are provided around the end surface of the exhaust valve plate body, and a threaded hole column for mating with the through hole is provided around the side of the stainless steel bottom layer away from the polyetherketone surface layer, and a screw for threadedly mating with the threaded hole column is provided at one end of the through hole.

[0006] Furthermore, the number of through holes, threaded hole columns and screws is four, and the four through holes, threaded hole columns and screws are arranged in an equiangular surrounding manner.

[0007] Furthermore, the sheet-like shape of the coating structure is the same as the outer dimensions of the end of the exhaust valve sheet.

[0008] Furthermore, the thickness of the coating structure is set to 1 mm to 2 mm.

[0009] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0010] The technical solution of the present application reduces the noise of the exhaust valve plate during daily operation by setting a coating structure on the end face of the exhaust valve plate that is subject to daily collisions, and replaces the metal material collision with the polyetherketone surface layer of the coating structure. The coating structure replaces the exhaust valve plate for pre-wear and loss, increases the thickness of the end face of the exhaust valve plate that is subject to daily collisions, and thus improves the durability of the exhaust valve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present invention will become more apparent from the detailed description of the non-limiting embodiments with reference to the following drawings:

[0012] Figure 1 A front view of a compressor exhaust valve plate with improved durability;

[0013] Figure 2 This is the main view of the exhaust valve body;

[0014] Figure 3 It is the rear view of the exhaust valve body;

[0015] Figure 4 is a structural schematic diagram of the coating structure;

[0016] Figure 5 Schematic diagram of the coating structure.

[0017] In the figure: 1. Exhaust valve body; 2. Coating structure; 201. Polyetherketone surface layer; 202. Stainless steel bottom layer; 3. Through hole; 4. Screw; 5. Threaded hole column. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example 1, as Figure 1-5 As shown, the utility model provides a technical solution: a compressor exhaust valve plate with improved durability, comprising an exhaust valve plate body 1 and a coating structure 2 arranged on the end surface of the exhaust valve plate body 1, the coating structure 2 comprising a stainless steel bottom layer 202 and a polyetherketone surface layer 201.

[0020] In a specific embodiment of the present invention, the surface of the stainless steel bottom layer 202 is roughened to improve the tightness of the connection with the polyetherketone surface layer 201, and the threaded hole column 5 of the coating structure 2 is embedded in the through hole 3 of the exhaust valve plate body 1, and the screw 4 is screwed into the threaded hole column 5. The screw 4 can stably confine the threaded hole column 5 in the through hole 3, thereby achieving the tightness of the connection between the coating structure 2 and the exhaust valve plate body 1. The coating structure 2 increases the thickness of the valve tongue part of the exhaust valve plate body, which can improve the reliability of the valve plate and reduce the probability of damage to the valve tongue of the valve plate. At the same time, the bending torque part is not thickened when the exhaust valve plate is opened, and the exhaust will not increase the difficulty of opening, and will not affect the cooling capacity and performance.

[0021] In the preferred technical solution, a number of through holes 3 are provided around the end surface of the exhaust valve plate body 1, and a threaded hole column 5 for being embedded and matched with the through hole 3 is provided around the side of the stainless steel bottom layer 202 facing away from the polyetherketone surface layer 201. A screw 4 for threadedly matching with the threaded hole column 5 is provided at one end of the through hole 3. The number of through holes 3, threaded hole columns 5 and screws 4 are all four, and the four through holes 3, threaded hole columns 5 and screws 4 are arranged at equal angles. The screw 4 can stably confine the threaded hole column 5 in the through hole 3, thereby realizing a stable connection between the coating structure 2 and the exhaust valve plate body 1.

[0022] In the preferred technical solution, the coating structure 2 is in the form of a sheet. The coating structure 2 is in the form of a sheet, and the contact area is larger, which can improve the sealing performance when the exhaust valve sheet 1 and the exhaust hole are fitted together. Increasing the contact area can improve the wear resistance.

[0023] In the preferred technical solution, the thickness of the coating structure 2 is set to 1 mm, and the valve tongue portion of the exhaust valve plate is thickened, which can improve the reliability and durability of the valve plate.

[0024] In a preferred technical solution, the coating structure 2 may be provided with only one polyetherketone surface layer 201 , and the polyetherketone surface layer 201 and the exhaust valve plate body 1 are connected by a hot melt bonding process.

[0025] In the preferred technical solution, the coating structure 2 can be provided with only one layer of stainless steel bottom layer 202, and the stainless steel bottom layer 202 is connected to the exhaust valve plate body 1 by a welding process, both of which can increase the durability of the exhaust valve plate body 1. When only one layer of stainless steel bottom layer 202 is provided, the noise reduction effect will be lost, but the durability will be greatly improved.

[0026] In summary, this embodiment improves the reliability of the valve plate without affecting the cooling capacity and performance by thickening the valve tongue portion of the existing exhaust valve plate.

Claims

1. A compressor exhaust valve plate with improved durability, characterized by: The invention comprises an exhaust valve plate (1) and a coating structure (2) arranged on the end surface of the exhaust valve plate (1), wherein the coating structure (2) comprises a stainless steel bottom layer (202) and a polyetherketone surface layer (201), a plurality of through holes (3) are provided around the end surface of the exhaust valve plate (1), a threaded hole column (5) for engaging with the through hole (3) is provided around the side of the stainless steel bottom layer (202) facing away from the polyetherketone surface layer (201), and a screw (4) for engaging with the threaded hole column (5) is provided at one end of the through hole (3).

2. The compressor exhaust valve plate with improved durability according to claim 1, characterized in that: The number of the through holes (3), threaded hole columns (5) and screws (4) is four, and the four through holes (3), threaded hole columns (5) and screws (4) are arranged in an equiangular surrounding manner.

3. The compressor exhaust valve plate with improved durability according to claim 1, characterized in that: The sheet-like shape of the coating structure (2) is the same as the outer dimensions of the exhaust valve sheet end.

4. The compressor exhaust valve plate with improved durability according to claim 1, characterized in that: The thickness of the coating structure (2) is set to 1 mm to 2 mm.

Images