Zero-leakage fresh air valve

Abstract

The utility model relates to the technical field of air valve equipment, and discloses a zero-leakage fresh air valve which comprises a valve body and a valve plate, the valve plate is arranged in the valve body, a valve seat is arranged at the inner bottom of the valve body, an air cylinder executing mechanism is arranged at the inner top of the valve body, a fresh air outlet is formed in one side of the valve body, and the air cylinder executing mechanism is arranged on the other side of the valve body. And a fresh air inlet is formed in the bottom of the valve body. According to the zero-leakage fresh air valve, the valve plate is pushed by the air cylinder executing mechanism to be tightly attached to the valve seat for sealing, the high sealing performance of the valve can be guaranteed, the fresh air volume is controlled by adjusting the distance between the valve plate and the valve seat, the whole valve adopts the finely-machined hard contact face valve seat, tight sealing is guaranteed in combination with deformation of the valve plate, and the zero-leakage effect is achieved; the sealing reliability is guaranteed after the valve plate is pushed by the air cylinder executing mechanism to form certain deformation, the sealing effect of the sealing face can be guaranteed even if frequent actions are conducted, the service life is prolonged, and the leakage problem of the fresh air valve can be effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of air valve equipment technology, specifically a zero-leakage fresh air valve. Background Technology

[0002] Air valve equipment is a device used to regulate and control airflow, pressure, and gas flow direction in ventilation systems. In industries such as chemical, petroleum, metallurgy, power, and building materials, air valve equipment is used to control ventilation, dust removal, and smoke exhaust systems in the production process to ensure the safety and normal operation of the production environment.

[0003] According to application number 202322891949.2, a regulating valve for a fresh air system is disclosed, including an air duct and a ventilation regulating mechanism. The ventilation regulating mechanism is located at the exhaust port of the air duct and is movably connected to the air duct. The ventilation regulating mechanism is used to block the exhaust port of the air duct. A filter mechanism is detachably connected to a mounting plate. The filter mechanism includes a connecting sleeve and a filter bag. The filter bag is fixedly connected to the exhaust port of the connecting sleeve. The mounting plate is fixedly connected to the air duct and fully covers and blocks the exhaust port of the air duct. Two fixing sleeves, corresponding one-to-one with the connecting sleeves, are installed through the mounting plate and are fixedly connected to the mounting plate. This utility model can filter out impurities and dust in the airflow during ventilation and retain the filtered impurities and dust in the filter mechanism. Regularly disassembling the filter mechanism can avoid the problem of reduced ventilation efficiency caused by long-term accumulation of impurities and dust.

[0004] When using equipment, there are often situations where it is necessary to extract fresh air and avoid gas leakage in the pipeline. Traditional fresh air valves use butterfly valves, but butterfly valves still have the following problems in actual use.

[0005] (1) The sealing of the butterfly valve is a discontinuous seal, and there is a possibility of leakage at the rotating shaft.

[0006] (2) Butterfly valves are difficult to achieve zero sealing, and the sealing surface is easily damaged and fails after frequent operation. Utility Model Content

[0007] To address the shortcomings of existing technologies, this utility model provides a zero-leakage fresh air valve, which effectively solves the leakage problem of fresh air valves, improves the operating efficiency and stability of equipment, and reduces the maintenance costs and risks for enterprises, thus solving the problems mentioned in the background technology.

[0008] This utility model provides the following technical solution: a zero-leakage fresh air valve, including a valve body and a valve plate, the valve plate being disposed inside the valve body, a valve seat being disposed at the bottom of the valve body, a cylinder actuator being disposed at the top of the valve body, a fresh air outlet being provided on one side of the valve body, and a fresh air inlet being provided at the bottom of the valve body.

[0009] Preferably, the valve seat is fixedly connected to the inner wall of the valve body, the cylinder actuator is fixedly connected to the inner wall of the valve body, and the valve plate is fixedly connected to the output shaft of the cylinder actuator.

[0010] Preferably, the valve plate has a smooth surface and a certain degree of elasticity, the valve seat is a precision-machined sealing surface, and the valve seat is installed at the top opening of the fresh air inlet.

[0011] Preferably, the valve plate is located directly above the valve seat.

[0012] Preferably, the valve plate, valve seat, cylinder actuator, and fresh air inlet are located on the same horizontal line and are all located in the center of the valve body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. This zero-leakage fresh air valve uses a cylinder actuator to push the valve plate and valve seat to fit tightly together for sealing, ensuring high sealing performance. The fresh air volume is controlled by adjusting the distance between the valve plate and the valve seat. The entire valve uses a precision-machined hard contact surface valve seat, which, combined with the deformation of the valve plate, ensures a tight seal and achieves zero leakage.

[0015] 2. This zero-leakage fresh air valve has a compact structure and simple construction. The valve plate is pushed by the cylinder actuator to form a certain deformation to ensure the reliability of the seal. Even after frequent operation, the sealing effect of the sealing surface can be guaranteed, thus increasing the service life.

[0016] 3. This zero-leakage fresh air valve can effectively solve the leakage problem of fresh air valves, improve the operating efficiency and stability of equipment, and reduce the maintenance costs and risks of enterprises. Attached Figure Description

[0017] Figure 1 A schematic diagram of the overall structure of a zero-leakage fresh air valve provided by this utility model.

[0018] In the diagram: 1. Valve body; 2. Valve plate; 3. Valve seat; 4. Cylinder actuator; 5. Fresh air outlet; 6. Fresh air inlet. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1A zero-leakage fresh air valve includes a valve body 1 and a valve plate 2. The valve plate 2 is located inside the valve body 1. A valve seat 3 is located at the bottom of the valve body 1. A cylinder actuator 4 is located at the top of the valve body 1. A fresh air outlet 5 is opened on one side of the valve body 1. A fresh air inlet 6 is opened at the bottom of the valve body 1.

[0021] When valve body 1 is in the open state, as shown in the attached... Figure 1 As shown, fresh air enters the valve body 1 from the fresh air inlet 6 and is then discharged from the fresh air outlet 5. When the valve body 1 is closed, the valve plate 2 is pushed downward by the cylinder actuator 4, so that the valve plate 2 contacts the valve seat 3. At this time, after the cylinder actuator 4 continues to push the valve plate 2, the valve plate 2 will undergo a certain deformation and tightly combine with the valve seat 3, which can ensure the high sealing performance of the valve and achieve zero leakage.

[0022] Please see Figure 1 Valve seat 3 is fixedly connected to the inner wall of valve body 1, cylinder actuator 4 is fixedly connected to the inner wall of valve body 1, valve plate 2 is fixedly connected to the output shaft of cylinder actuator 4, valve plate 2 has a smooth surface and a certain elasticity, valve seat 3 is a precision-machined sealing surface, and valve seat 3 is installed at the top opening of fresh air inlet 6.

[0023] The valve plate 2 is pushed to fit tightly against the valve seat 3 by the cylinder actuator 4 to achieve a seal, which can ensure the high sealing performance of the valve. The fresh air volume is controlled by adjusting the distance between the valve plate 2 and the valve seat 3. The entire valve uses a precision-machined hard contact surface valve seat 3, which, combined with the deformation of the valve plate 2, ensures a tight seal and achieves a zero-leakage effect.

[0024] Please see Figure 1 Valve plate 2 is located directly above valve seat 3. Valve plate 2, valve seat 3, cylinder actuator 4, and fresh air inlet 6 are all located on the same horizontal line and are all located in the center of valve body 1.

[0025] This utility model has a compact structure and simple construction. The valve plate 2 is pushed by the cylinder actuator 4 to produce a certain deformation to ensure the reliability of the seal. Even after frequent operation, the sealing effect of the sealing surface can be guaranteed, and the service life can be increased.

[0026] In this invention, the working principle of the device is as follows:

[0027] When in use, valve body 1 is in the open state, as shown in the attached... Figure 1As shown, fresh air enters the valve body 1 from the fresh air inlet 6 and is then discharged from the fresh air outlet 5. When the valve body 1 is closed, the cylinder actuator 4 pushes the valve plate 2 downward, causing the valve plate 2 to contact the valve seat 3. At this time, the cylinder actuator 4 continues to push the valve plate 2, causing the valve plate 2 to deform and tightly engage with the valve seat 3, ensuring high sealing performance and achieving zero leakage. The fresh air volume is controlled by adjusting the distance between the valve plate 2 and the valve seat 3. The entire valve uses a precision-machined hard contact surface valve seat 3, which, combined with the deformation of the valve plate 2, ensures a tight seal. Even after frequent operation, the sealing effect of the sealing surface can be guaranteed, effectively solving the leakage problem of fresh air valves, improving the operating efficiency and stability of the equipment, and reducing the maintenance costs and risks for enterprises.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A zero-leakage fresh air valve, comprising a valve body (1) and a valve plate (2), characterized in that, The valve plate (2) is located inside the valve body (1). A valve seat (3) is located at the bottom of the valve body (1). A cylinder actuator (4) is located at the top of the valve body (1). A fresh air outlet (5) is located on one side of the valve body (1). A fresh air inlet (6) is located at the bottom of the valve body (1).

2. The zero-leakage fresh air valve according to claim 1, characterized in that: The valve seat (3) is fixedly connected to the inner wall of the valve body (1), the cylinder actuator (4) is fixedly connected to the inner wall of the valve body (1), and the valve plate (2) is fixedly connected to the output shaft of the cylinder actuator (4).

3. The zero-leakage fresh air valve according to claim 1, characterized in that: The valve plate (2) has a smooth surface and a certain elasticity. The valve seat (3) is a precision-machined sealing surface and is installed at the top opening of the fresh air inlet (6).

4. The zero-leakage fresh air valve according to claim 1, characterized in that: The valve plate (2) is located directly above the valve seat (3).

5. A zero-leakage fresh air valve according to claim 1, characterized in that: The valve plate (2), valve seat (3), cylinder actuator (4), and fresh air inlet (6) are located on the same horizontal line and are all located in the center of the valve body (1).

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