An automatic exhaust valve

Abstract

The utility model discloses an automatic exhaust valve, including the valve body, the valve body side is equipped with the exhaust hole, the valve body top installs the apron piece, and the apron piece bottom is fixed with the top cap, the top cap bottom is fixed with the installation cylinder and the electromagnet through the screw, the installation cylinder bottom opening's through -hole swing connection has the slide rod, and the slide rod top is fixed with the permanent magnet that cooperates with electromagnet and uses through the screw, the spring is sleeved with the slide rod outer wall, and the spring both ends are fixed respectively in permanent magnet bottom outer wall and installation cylinder bottom inner wall, the valve body inner surface is welded with the contact ring, and the slide rod bottom is fixed with and cooperates with the contact ring and uses the stopper piece. The utility model discloses through electromagnet and permanent magnet cooperation, and utilize the controller to adjust the current size of flowing through electromagnet, can accurate control the repulsion between electromagnet and permanent magnet, and then combines the spring elasticity effect, can accurate setting gas pipeline in gas pressure relief's pressure critical value.

Description

Technical Field

[0001] This utility model relates to the field of exhaust valve technology, and in particular to an automatic exhaust valve. Background Technology

[0002] In various systems involving gas transportation, such as urban gas supply pipeline networks and gas transmission pipelines in industrial production, stable control of gas pressure is a key factor in ensuring the safe and efficient operation of the system. In traditional methods, simple mechanical seal structures are often used to prevent gas leakage. These structures usually rely on the elasticity of springs to make the plug fit tightly against the sealing surface to achieve basic sealing function. When the gas pressure in the gas pipeline exceeds the safe range and needs to be released, the response of traditional structures is not precise or flexible enough. Due to the lack of an effective adjustment mechanism, the pressure relief threshold is often fixed and difficult to be customized according to specific needs. This may lead to premature pressure relief in practical applications before the gas pressure reaches a dangerous level, affecting the normal operation efficiency of the system, or serious consequences such as pipeline rupture and equipment damage when the gas pressure is seriously exceeded but pressure relief is not carried out in time. With the continuous advancement of technology and the increasing demands for system safety and stable operation, the market needs an automatic exhaust valve that can flexibly set the critical pressure value for pressure relief, and has the ability to adjust in real time according to different working conditions. This valve can ensure reliable sealing under normal pressure and timely and accurate pressure relief when the gas pressure is abnormal, thereby effectively ensuring the safe operation of the gas delivery system and improving the overall system efficiency and reliability. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing an automatic exhaust valve.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: An automatic exhaust valve includes a valve body, a cover plate is installed on the top of the valve body, a top cover is fixed to the bottom of the cover plate, a mounting cylinder and an electromagnet are fixed to the bottom of the top cover by screws, a slide rod is movably connected to a through hole at the bottom of the mounting cylinder, a permanent magnet is fixed to the top of the slide rod by screws, a spring is sleeved on the outer wall of the slide rod, the two ends of the spring are respectively fixed to the bottom outer wall of the permanent magnet and the bottom inner wall of the mounting cylinder, an abutment ring is welded to the inner surface of the valve body, and a blocking component is fixed to the bottom of the slide rod.

[0005] As a further embodiment of this utility model: the blocking component includes a fixing plate and a conical rubber plug, wherein the conical rubber plug is bonded to the bottom outer wall of the fixing plate.

[0006] As a further embodiment of this utility model: a connecting rod is welded to the top of the fixing plate, and a pressure sensor is fixed to the top of the connecting rod. The top of the pressure sensor and the bottom of the sliding rod are fixedly connected.

[0007] As a further embodiment of this utility model: the cover plate includes a cover plate body and an external threaded plate, the external threaded plate is welded to the bottom of the cover plate body, and the top cover is welded to the bottom of the external threaded plate.

[0008] As a further improvement of this utility model, the cover plate body is connected to the top of the valve body by a threaded connection between an external threaded plate and the valve body.

[0009] As a further improvement of this utility model: an exhaust hole is provided on the side of the valve body, and an exhaust pipe is welded to the side of the valve body, with the exhaust pipe and the exhaust hole being interconnected.

[0010] As a further improvement of this utility model: a flange is welded to the bottom of the valve body, and a fixing hole is opened on the surface of the flange.

[0011] As a further improvement of this utility model, a controller is installed on the side of the valve body.

[0012] Compared with the prior art, the present invention provides an automatic exhaust valve, which has the following beneficial effects: 1. By using an electromagnet in conjunction with a permanent magnet and adjusting the current flowing through the electromagnet with a controller, the repulsive force between the electromagnet and the permanent magnet can be precisely controlled. Combined with the elastic force of a spring, the critical pressure value for gas depressurization in the gas pipeline can be precisely set.

[0013] 2. The flange design with fixing holes at the bottom of the valve body makes the docking and fixing process with the gas pipeline simple and efficient, thus facilitating the connection and fixation between the valve body and the gas pipeline.

[0014] 3. The controller integrates a wireless communication module, which can establish a wireless connection with a remote terminal. Users can send control commands remotely via mobile phone or computer without going to the site, so as to adjust parameters such as electromagnet current.

[0015] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an automatic exhaust valve proposed in this utility model; Figure 2 This is a cross-sectional structural diagram of an automatic exhaust valve proposed in this utility model; Figure 3 This is a schematic diagram of the overall exploded structure of an automatic exhaust valve proposed in this utility model; Figure 4 This is a partial explosion-proof structural diagram of an automatic exhaust valve proposed in this utility model.

[0017] In the diagram: 1. Valve body; 2. Cover plate body; 3. Controller; 4. Flange; 5. Exhaust pipe; 6. Pressure sensor; 7. Permanent magnet; 8. Mounting cylinder; 9. Contact ring; 10. Top cover; 11. Electromagnet; 12. External thread plate; 13. Fixing plate; 14. Conical rubber plug; 15. Connecting rod; 16. Slide rod; 17. Spring. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] An automatic air vent valve, such as Figures 1 to 4 As shown, the device includes a valve body 1, with an exhaust port on the side of the valve body 1. A cover plate is installed on the top of the valve body 1, and a top cover 10 is fixed to the bottom of the cover plate. An installation cylinder 8 and an electromagnet 11 are fixed to the bottom of the top cover 10 by screws. A slide rod 16 is slidably connected to a through hole at the bottom of the installation cylinder 8. A permanent magnet 7 that works with the electromagnet 11 is fixed to the top of the slide rod 16 by screws. A spring 17 is sleeved on the outer wall of the slide rod 16. The two ends of the spring 17 are respectively fixed to the bottom outer wall of the permanent magnet 7 and the bottom inner wall of the installation cylinder 8. An abutment ring 9 is welded to the inner surface of the valve body 1, and a blocking component that works with the abutment ring 9 is fixed to the bottom of the slide rod 16. During use, the bottom of the valve body 1 is connected to the gas pipeline (not shown). In the initial state, the blocking component and the contact ring 9 are in contact with each other under the elastic force of the spring 17, sealing the contact ring 9 to prevent gas from leaking out through the valve body 1 and the contact ring 9 during the gas delivery process. When the electromagnet 11 is energized, it can generate a magnetic force that repels the permanent magnet 7. By adjusting the current flowing through the electromagnet 11, the magnitude of the repulsive force between the electromagnet 11 and the permanent magnet 7 can be adjusted. Under the action of the repulsive force and the elastic force of the spring 17, the blocking component ensures the sealing of the contact ring 9. When the gas pressure in the gas pipeline is too high and needs to be released, the gas pushes against the blockage component under the action of the gas pressure. When the gas pressure overcomes the elastic force of spring 17 and the repulsive force between electromagnet 11 and permanent magnet 7, the blockage component and the contact ring 9 disengage from each other, and the gas is discharged through the opening of the contact ring 9, ensuring the pressure safety of the gas pipeline. By setting the magnitude of the repulsive force between permanent magnet 7 and electromagnet 11 to be adjustable, the sum of the elastic force of spring 17 and the repulsive force between electromagnet 11 and permanent magnet 7 can be adjusted. When the gas pipeline needs to be vented, the pressure in the gas pipeline needs to be greater than the sum of the elastic force and the repulsive force. That is, the pressure threshold for automatic gas venting in the gas pipeline is limited by this adjustment method.

[0021] The plugging component includes a fixing plate 13 and a conical rubber plug 14. The conical rubber plug 14 is bonded to the bottom outer wall of the fixing plate 13. A connecting rod 15 is welded to the top of the fixing plate 13. A pressure sensor 6 is fixed to the top of the connecting rod 15. The top of the pressure sensor 6 is fixedly connected to the bottom of the slide rod 16. By setting a conical rubber plug 14, it is made to stick together with the contact ring 9 under the action of the elastic force of the spring 17 and the repulsive force between the electromagnet 11 and the permanent magnet 7, thereby sealing the opening on the contact ring 9. The pressure sensor 6 can be used to monitor the pressure on the conical rubber plug 14.

[0022] The cover plate includes a cover plate body 2 and an external threaded plate 12. The external threaded plate 12 is welded to the bottom of the cover plate body 2, and the top cover 10 is welded to the bottom of the external threaded plate 12. The cover plate body 2 is connected to the top of the valve body 1 by the external threaded plate 12. The cover plate body 2 and the top of the valve body 1 can be fixed by rotating the thread between the external thread plate 12 and the top of the valve body 1. Both the surface of the cover plate body 2 and the surface of the top cover 10 are provided with wire holes for wiring the electromagnet 11 so as to energize it.

[0023] An exhaust pipe 5 is welded to the side of the valve body 1, and the exhaust pipe 5 is connected to the exhaust hole on the side of the valve body 1. The exhaust pipe 5 is provided so that the gas is discharged into the external environment through the exhaust pipe and the exhaust port.

[0024] The bottom of the valve body 1 is welded with a flange 4, and the surface of the flange 4 is provided with fixing holes; When it is necessary to fix the valve body 1 and the gas pipeline, the fixing holes on the flange 4 are aligned with the fixing holes on the flange on the gas pipeline. A gasket can be placed between the two to improve the sealing. Bolts are installed using the fixing holes. After the bolts are installed, nuts are used to lock them to fix the two flanges, thereby completing the fixed connection between the valve body 1 and the gas pipeline. The use of flanges for connecting pipelines is a mature existing technology and will not be elaborated here.

[0025] A controller 3 is installed on the side of the valve body 1; The controller 3 integrates a wireless communication module such as Wi-Fi, Bluetooth, or 4G / 5G module, enabling it to establish a wireless connection with a remote control terminal such as a mobile phone or computer. Users can send control commands through an application or web interface on the remote control terminal. After receiving the commands, the controller 3 adjusts the current of the electromagnet 11 to achieve remote control. At the same time, the controller 3 is electrically connected to the pressure sensor 6. The pressure sensor 6 monitors the pressure on the conical rubber stopper in real time and converts the pressure data into an electrical signal, which is then transmitted to the controller 3.

[0026] Working principle: First, the bottom of the valve body 1 is connected to the gas pipeline through the flange 4. Initially, the blocking component is blocked by the spring force of the spring 17 against the abutment ring 9. The electromagnet 11 is energized to generate a repulsive force with the permanent magnet 7. The magnitude of the repulsive force can be adjusted by adjusting the current to ensure a seal. The pressure sensor 6 monitors the pressure on the conical rubber plug 14 in real time and transmits it to the controller 3. When the gas pressure in the gas pipeline is too high, the gas pushes the blocking component. When the gas pressure overcomes the spring force and the repulsive force of the electromagnet, the blocking component is disengaged from the abutment ring 9. The gas is discharged to the external environment through the exhaust port and exhaust pipe 5 after passing through the opening of the abutment ring 9.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatic exhaust valve, comprising a valve body (1), characterized in that, The valve body (1) is equipped with a cover plate on the top, and a top cover (10) is fixed at the bottom of the cover plate. The bottom of the top cover (10) is fixed with a mounting cylinder (8) and an electromagnet (11) by screws. A sliding rod (16) is movably connected to the through hole at the bottom of the mounting cylinder (8). A permanent magnet (7) is fixed at the top of the sliding rod (16) by screws. A spring (17) is sleeved on the outer wall of the sliding rod (16). The two ends of the spring (17) are respectively fixed to the bottom outer wall of the permanent magnet (7) and the bottom inner wall of the mounting cylinder (8). An abutment ring (9) is welded on the inner surface of the valve body (1). A blocking component is fixed at the bottom of the sliding rod (16).

2. An automatic exhaust valve according to claim 1, characterized in that, The plugging component includes a fixing plate (13) and a conical rubber plug (14), the conical rubber plug (14) being bonded to the bottom outer wall of the fixing plate (13).

3. An automatic exhaust valve according to claim 2, characterized in that, A connecting rod (15) is welded to the top of the fixing plate (13), and a pressure sensor (6) is fixed to the top of the connecting rod (15). The top of the pressure sensor (6) and the bottom of the slide rod (16) are fixedly connected.

4. An automatic exhaust valve according to claim 1, characterized in that, The cover plate includes a cover plate body (2) and an external threaded plate (12). The external threaded plate (12) is welded to the bottom of the cover plate body (2), and the top cover (10) is welded to the bottom of the external threaded plate (12).

5. An automatic exhaust valve according to claim 4, characterized in that, The cover plate body (2) is connected to the top of the valve body (1) by a threaded connection between the external threaded plate (12) and the valve body (1).

6. An automatic exhaust valve according to claim 5, characterized in that, The valve body (1) has an exhaust hole on its side and an exhaust pipe (5) is welded to its side. The exhaust pipe (5) and the exhaust hole are connected.

7. An automatic exhaust valve according to claim 6, characterized in that, The valve body (1) has a flange (4) welded to its bottom, and the flange (4) has a fixing hole on its surface.

8. An automatic exhaust valve according to claim 7, characterized in that, A controller (3) is installed on the side of the valve body (1).

Images