Compressor air valve

Abstract

The utility model relates to the technical field of reciprocating compressor automatic control valves, and discloses a compressor air valve which comprises a limiter, the bottom of the limiter is fixedly connected with a valve seat, the top of the valve seat is fixedly connected with an anti-scour ring, a plurality of first cavities are formed in the limiter, and a plurality of second cavities are formed in the first cavities. A first cavity is formed in the valve seat, an elastic assembly used for providing counter-acting force is arranged in the first cavity, a valve block is slidably connected into the first cavity, a plurality of second cavities are formed in the outer portion of the valve seat, the outer portion of the valve seat makes contact with the outer portion of the anti-impact ring, and the elastic assembly comprises a control spring. The outer portion of the control spring is arranged in the first cavity. According to the utility model, due to the fact that the anti-impact ring is arranged, airflow cannot impact each other at the outlet of the valve gap, so that the through-flow capacity is obviously improved, the impact force of the valve plate on the limiter is reduced, and meanwhile, the noise can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic control valves for reciprocating compressors, and particularly relates to a compressor air valve. Background Art

[0002] The compressor air valve is a key pneumatic control component. It realizes precise regulation of gas flow and pressure by automatically controlling the inlet and outlet of gas, thus playing an important role in various industrial fields. The compressor air valve is an important component in the compressor and is used to control the inhalation and discharge of gas.

[0003] In the prior art, some compressor air valves are used to control the timely inhalation and discharge of gas into and out of the cylinder. Their working principles are based on pressure differential, valve plate movement, spring action, etc. However, in the specific use process, the impact force on the limiter cannot be resisted, nor can the noise be reduced. Therefore, if the air valve design cannot effectively reduce the impact force of the valve plate on the lift limiter, the valve plate and the lift limiter will experience more frequent impacts, which will accelerate the wear of these components. The increase in wear will not only reduce the sealing performance of the air valve but may also cause air valve leakage, thereby affecting the efficiency and output of the compressor. In response to the above problems, a compressor air valve is proposed. Summary of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a compressor air valve, aiming to improve the problem that some compressor air valves in the prior art cannot resist the impact force on the limiter and cannot reduce noise.

[0005] To achieve the above object, the utility model adopts the following technical scheme:

[0006] A compressor air valve includes a limiter. A valve seat is fixedly connected to the bottom of the limiter. An anti-impact ring is fixedly connected to the top of the valve seat. A plurality of cavities I are formed inside the limiter. A elastic force assembly for providing a reaction force is arranged inside the cavity I. A valve plate is slidably connected inside the cavity I. A plurality of cavities II are formed outside the valve seat. The outside of the valve seat is in contact with the outside of the anti-impact ring;

[0007] As a further description of the above technical scheme:

[0008] The elastic force assembly includes a control spring. The outside of the control spring is arranged inside the cavity I, and the outside of the control spring is fixedly connected inside the limiter;

[0009] As a further description of the above technical scheme:

[0010] A sleeve is fixedly connected inside the limiter, and the outside of the sleeve is fixedly connected inside the valve seat;

[0011] As a further description of the above technical solution:

[0012] A connecting bolt is fixedly connected inside the sleeve, the outside of the connecting bolt is fixedly connected inside the restrictor, and the outside of the connecting bolt is fixedly connected inside the valve seat;

[0013] As a further description of the above technical solution:

[0014] One end of the control spring is fixedly connected inside the first cavity, and the other end of the control spring is fixedly connected to the outside of the valve disc.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, due to the setting of the anti-impact ring, the air flow will not impact each other at the valve gap outlet, so the flow capacity is significantly improved. In addition, there is a small gap between the inner and outer circles of the valve disc and the inner and outer circles of the ring groove to form an "air cushion" to reduce the impact force of the valve disc on the restrictor and also reduce the noise.

[0017] 2. In the utility model, an annular small groove is opened at the bottom of the buffer groove to reduce the adsorption force of the air cushion, reduce the impact of the valve disc on the valve seat, and avoid delayed closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional schematic diagram of a compressor air valve proposed by the utility model;

[0019] Figure 2 is a schematic structural diagram of a connecting bolt of a compressor air valve proposed by the utility model;

[0020] Figure 3 is a schematic structural diagram of a control spring of a compressor air valve proposed by the utility model;

[0021] Figure 4 is Figure 3 the enlarged view at A in

[0022] Legend:

[0023] 1. Restrictor; 2. Valve disc; 3. Anti-impact ring; 4. Valve seat; 5. Sleeve; 6. Connecting bolt; 7. Control spring; 8. First cavity; 9. Second cavity. DETAILED DESCRIPTION OF THE INVENTION

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0025] Referring to Figures 1 to 3 , an embodiment provided by the present invention: A compressor air valve includes a restrictor 1. The restrictor 1 is located at the top of the compressor air valve and is usually made of high-strength steel to ensure that it can withstand the high pressure generated by high-speed airflows. The restrictor 1 is usually cylindrical in shape to facilitate concentrating the airflow and guiding it into the valve seat 4 below. The bottom of the restrictor 1 is fixedly connected to the valve seat 4. The valve seat 4 is also usually made of high-strength materials such as special alloy steel and is designed in a cylindrical shape that can precisely dock with the restrictor 1 to form an efficient gas flow path. The bottom of the valve seat 4 is designed with a precision sealing surface to ensure a tight and seamless closure with the valve disc 2, preventing gas backflow. The top of the valve seat 4 is fixedly connected to an impact ring 3. The impact ring 3 is usually made of impact-resistant materials such as special plastics or rubber materials coated with metal. It is designed to absorb the impact force generated by the valve disc 2 during high-speed movement. The impact ring 3 is positioned immediately above the valve seat 4 and may be in the shape of a thick ring to protect the valve seat 4 from direct impact. Multiple chambers one 8 are provided inside the restrictor 1. The chambers one 8 are multiple small chambers opened inside the restrictor 1, and each chamber is equipped with an elastic component. An elastic component for providing a reaction force is provided inside the chambers one 8. The elastic component includes a control spring 7. The control spring 7 may be made of high-strength stainless steel to ensure its elasticity and durability under frequent pressure changes. One end of the control spring 7 is fixed inside the chamber, and the other end supports the valve disc 2;

[0026] The valve disc 2 is a crucial moving part in the compressor air valve and is usually made of a lightweight and high-strength alloy material. The valve disc 2 slides inside the chambers one 8, is flat in shape, and has a sealing ring at its edge to enhance the sealing effect when it contacts the valve seat 4. Driven by the control spring 7, the valve disc 2 can quickly respond to air pressure changes and achieve rapid opening and closing, thereby controlling the dynamics of the airflow and enabling it to open or close flexibly according to air pressure changes. The outside of the control spring 7 is arranged inside the chambers one 8, and the outside of the control spring 7 is fixedly connected to the inside of the restrictor 1. The valve disc 2 is slidably connected inside the chambers one 8. Multiple chambers two 9 are provided outside the valve seat 4. The chambers two 9 are a series of channels opened outside the valve seat 4, and they are connected to the outside of the impact ring 3. These chambers help balance the pressure inside and outside the air valve and ensure the stability of the air valve during normal operation. The outside of the valve seat 4 is in contact with the outside of the impact ring 3;

[0027] Refer to Figures 3 to 4 , inside the limiter 1, a sleeve 5 is fixedly connected. The sleeve 5 is usually made of a strong and durable metal material and is cylindrical in shape to facilitate precise positioning between the limiter 1 and the valve seat 4. Its exterior is precisely installed inside the valve seat 4 to ensure that gas does not leak at the connection. This structural design not only ensures the overall stability of the gas valve but also facilitates the assembly and maintenance of the components. The exterior of the sleeve 5 is fixedly connected inside the valve seat 4, and inside the sleeve 5, a connecting bolt 6 is fixedly connected. The connecting bolt 6 is another key component. It not only firmly connects the sleeve 5 to the limiter 1 and the valve seat 4 but also can withstand the high pressure and vibration generated during operation. These connecting bolts 6 are usually made of high-strength alloy steel to ensure their tensile strength and durability under extreme working conditions. The exterior of the connecting bolt 6 is fixedly connected inside the limiter 1, and the exterior of the connecting bolt 6 is fixedly connected inside the valve seat 4. One end of the control spring 7 is fixedly connected inside the first cavity 8, and the other end of the control spring 7 is fixedly connected to the exterior of the valve plate 2. The control spring 7 plays a key role in controlling the air flow. One end of it is fixed inside the first cavity 8, while the other end is connected to the exterior of the valve plate 2. This configuration enables the control spring 7 to quickly and precisely adjust the position of the valve plate 2 according to the air pressure change, thereby achieving efficient air flow control.

[0028] Working principle: This gas valve has the characteristics of high working reliability, small pressure loss when air flow passes through, and energy saving. The process of gas flowing through the gas valve: The gas from the compressor cylinder sequentially flows through the valve seat 4, the annular gap between the valve plate 2 and the valve seat 4, the limiter 1, and finally is discharged to the exhaust pipe. Since the gas valve is a throttling element, a pressure drop will occur when the gas flows through the gas valve. Among them, the 90° sharp turn generated at the outlet of the valve seat 4 when the air flow passes through and the mutual impact loss of the air flow between adjacent channels generated at the outlet of the valve gap are the largest. Due to the installation of the anti-impact ring 3 in the structural gas valve, the air flow will not collide with each other at the outlet of the valve gap, so the flow capacity is significantly improved. In addition, there is a small gap between the inner and outer circles of the valve plate 2 and the inner and outer circles of the ring groove to form an "air cushion" to reduce the impact force of the valve plate 2 on the limiter 1, and at the same time, it can also reduce the noise. A small annular groove is opened at the bottom of the buffer groove to reduce the adsorption force of the air cushion and reduce the impact of the valve plate 2 on the valve seat 4 and avoid delayed closing. The control spring 7 is made of imported 17-7PH, which has good fatigue strength and corrosion resistance, making the gas valve work more reliably and have a longer service life.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A compressor valve, comprising a limiter (1), characterized in that: The bottom of the limiter (1) is fixedly connected to a valve seat (4), the top of the valve seat (4) is fixedly connected to an anti-collision ring (3), a plurality of cavities (8) are provided inside the limiter (1), an elastic component for providing a reaction force is provided inside the cavity (8), a valve plate (2) is slidably connected inside the cavity (8), a plurality of cavities (9) are provided outside the valve seat (4), and the outside of the valve seat (4) is in contact with the outside of the anti-collision ring (3).

2. A compressor valve according to claim 1, characterized in that: The elastic component comprises a control spring (7), the exterior of the control spring (7) being arranged inside the cavity one (8), and the exterior of the control spring (7) being fixedly connected to the interior of the limiter (1).

3. A compressor valve according to claim 1, characterized in that: The interior of the limiter (1) is fixedly connected to a sleeve (5), and the exterior of the sleeve (5) is fixedly connected to the interior of the valve seat (4).

4. A compressor valve according to claim 3, characterized in that: The interior of the sleeve (5) is fixedly connected with a connecting bolt (6), the exterior of the connecting bolt (6) is fixedly connected to the interior of the limiter (1), and the exterior of the connecting bolt (6) is fixedly connected to the interior of the valve seat (4).

5. A compressor valve according to claim 2, characterized in that: One end of the control spring (7) is fixedly connected to the inside of the cavity (8), and the other end of the control spring (7) is fixedly connected to the outside of the valve plate (2).

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