Impact-resistant and anti-adhesion compressor air valve

Abstract

The utility model discloses an impact-resistant and anti-adhesion compressor air valve, and relates to the technical field of compressor air valves. According to the air valve of the compressor, due to the fact that the externally-expanded flow guide chamfer is arranged on the upper portion of the channel of the valve cover, impurities such as particles, powder and liquid in air can be discharged smoothly, the contact area of the valve cover and the valve plate is reduced, and the adhesion resistance of the valve plate is improved; moreover, a small part of air flow is blown back when being blown to the chamfer inclined surface, so that a certain buffer protection effect is achieved on the valve plate, the impact resistance of the valve plate is improved, and the valve plate is made of a PEEK (Polyether-Ether-Ketone) material; after the improvement, the reliability and durability of the air valve are improved, and the service life is prolonged, so that the stable operation of a compressor unit is ensured, the out-of-plan overhaul frequency is reduced, and the operation cost is saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of compressor air valves, in particular to an impact-resistant and anti-adhesion compressor air valve. Background Art

[0002] The reticulated valve is a type of air valve that can be used as an automatic valve at the inlet and outlet of the compressor cylinder. It automatically opens and closes by relying on the pressure difference between the gas inside and outside the cylinder and the action of the ballast spring, thereby completing the air intake and exhaust actions of the compressor. The quality of the air valve's operation will directly affect the compressor's operating rate, production capacity and power consumption.

[0003] Existing mesh valve structure such as Figure 1 As shown, it is mainly composed of a valve seat, a valve cover, a valve plate, a lift pad, a stud, and a spring; the valve seat fits tightly with the valve plate to form a planar sealing structure; under the action of gas thrust, the valve plate moves up and down along the lift pad to achieve opening and closing. For compressor valves used in the field and scenarios of petrochemical industry, with the continuous advancement of the technology of the petrochemical industry, the common mesh plane sealing valves are no longer competent for certain specific working conditions, such as high pressure difference, oil injection lubrication, and relatively dirty media. It manifests as premature damage to the valve plate and reduced service life. It not only affects the normal operation of the device, but also increases the frequency of unplanned maintenance and increases operating costs. In this case, it is necessary to improve the structure of the compressor valve to meet special working conditions. Therefore, this scheme proposes a compressor valve that is impact-resistant and anti-adhesion, which has important practical significance. Utility Model Content

[0004] The utility model provides an impact-resistant and anti-adhesion compressor valve, which is beneficial to the smooth discharge of particles, powder, liquid and other debris in the gas by arranging an outward-expanding guide chamfer on the upper part of the channel of the valve cover, reducing the contact area between the valve cover and the valve plate, and improving the anti-adhesion property of the valve plate; moreover, a small part of the airflow blown onto the chamfered inclined surface will be blown back, thereby playing a certain buffering and protective role on the valve plate, improving the impact resistance of the valve plate, and the valve plate is made of PEEK material; after the above improvements, the reliability and durability of the air valve are improved, and the service life is extended, thereby ensuring the smooth operation of the compressor unit, reducing the frequency of unplanned maintenance, and saving operating costs; in summary, the problems in the background technology are solved.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses an impact-resistant and anti-adhesion compressor gas valve, comprising a valve seat, a valve cover, a valve plate, a lift pad, a stud, and a spring. The valve seat and the valve plate are tightly fitted to form a seal. Under the thrust of the gas, the valve plate moves up and down along the lift pad to open and close.

[0007] An upwardly expanding flow guide chamfer is provided on the upper portion of the passage of the valve cover.

[0008] Furthermore, the valve plate is made of PEEK material.

[0009] Compared with the prior art, the utility model has the following beneficial effects:

[0010] (1) The compressor gas valve is provided with an outward-expanding flow guide chamfer on the upper part of the channel of the valve cover, which is conducive to the smooth discharge of particles, powder, liquid and other debris in the gas, reduces the contact area between the valve cover and the valve plate, and improves the anti-adhesion property of the valve plate; and a small part of the airflow will be blown back when it is blown onto the chamfered inclined surface, thereby playing a certain buffering and protective role on the valve plate and improving the impact resistance of the valve plate;

[0011] (2) The valve plate is made of PEEK material, which enables the new valve plate to withstand higher impact loads;

[0012] (3) The improvement of the guide chamfer and the use of PEEK material on the valve plate improves the reliability and durability of the gas valve and extends its service life, thereby ensuring the smooth operation of the compressor unit, reducing the frequency of unplanned maintenance, and saving operating costs.

[0013] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 It is a structural schematic diagram of an existing compressor air valve;

[0016] Figure 2 This is a schematic structural diagram of an impact-resistant and anti-adhesion compressor valve of the utility model;

[0017] Figure 3 for Figure 2 A partial enlarged view of position A in the middle;

[0018] Figure 4 for Figure 2 The top view of the structure of the middle valve plate;

[0019] Figure 5 for Figure 4 Middle BB section view;

[0020] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0021] 1-valve seat, 2-valve cover, 3-valve plate, 4-lift pad, 5-stud, 6-guide chamfer, 7-spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "upper and lower" and "upper" etc. indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0024] Existing mesh valve structure such as Figure 1 As shown, it is mainly composed of a valve seat, a valve cover, a valve plate, a lift pad, a stud, and a spring; the valve seat fits tightly with the valve plate to form a planar sealing structure; under the action of gas thrust, the valve plate moves up and down along the lift pad to achieve opening and closing. For compressor valves used in the field and scenarios of petrochemicals, with the continuous advancement of the technology in the petrochemical industry, the common mesh plane sealing valves are no longer capable of certain specific working conditions, such as high pressure difference, oil injection lubrication, and relatively dirty media. It manifests as premature damage to the valve plate and reduced service life. Not only does it affect the normal operation of the device, it also increases the frequency of unplanned maintenance and increases operating costs.

[0025] See also Figure 2-5 As shown, the utility model is an impact-resistant and anti-adhesion compressor valve, comprising a valve seat 1, a valve cover 2, a valve plate 3, a lift pad 4, a stud 5, and a spring 7. The valve seat 1 and the valve plate 3 are tightly fitted to form a seal. Under the thrust of the gas, the valve plate 3 moves up and down along the lift pad 4 to open and close. The spring 7 evenly distributed in the spring hole of the valve cover 2 ensures the stability of the movement of the valve plate.

[0026] The upper part of the passage of the valve cover 2 is provided with a flow guide chamfer 6 which expands upward.

[0027] Among them, the valve plate 3 is made of PEEK material;

[0028] The improvements of the new valve are as follows:

[0029] The new valve has a guide chamfer added to the valve cover channel (see attached Figure 3 ).

[0030] a. It is conducive to the smooth discharge of particles, powders, liquids and other debris in the gas;

[0031] b. Reduce the contact area between the valve cover and the valve plate, and improve the anti-adhesion property of the valve plate;

[0032] c. A small part of the airflow will be blown back when it hits the chamfered surface, thus providing a certain buffering and protective effect on the valve plate. In addition, the valve plate is made of PEEK material, which further improves its impact resistance.

[0033] After the above-mentioned advantages are improved, the reliability and durability of the gas valve are improved and the service life is extended, thereby ensuring the smooth operation of the compressor unit, reducing the frequency of unplanned maintenance and saving operating costs.

[0034] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An impact-resistant and anti-adhesion compressor valve, characterized in that: The invention comprises a valve seat (1), a valve cover (2), a valve plate (3), a lift pad (4), a stud (5), and a spring (7). The valve seat (1) and the valve plate (3) are tightly fitted to form a seal. Under the thrust of gas, the valve plate (3) moves up and down along the lift pad (4) to open and close. The invention is characterized in that: The upper part of the channel of the valve cover (2) is provided with an upwardly expanding flow guide chamfer (6).

2. The impact-resistant and anti-adhesion compressor valve according to claim 1, characterized in that: The valve plate (3) is made of PEEK material.

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