Anti-overflow monitoring device for valve seat of electromagnetic valve

Abstract

The utility model provides a solenoid valve seat spill-proof monitoring device, including valve body, bonnet, solenoid coil, tube body, interface and suspension member, bonnet is provided on the valve body, solenoid coil is provided on the bonnet, the solenoid coil is provided with movable iron core and elastic piece inside, the tube body is provided on the lower side of the valve body, and the connector is provided with the suspension member on the lower side of the valve body. The connectors are arranged at the two axial ends of the pipe body and used for enabling the pipe body to be connected with a pipeline, the hanging piece comprises a connecting part and a supporting part, the connecting part of the hanging piece is fixedly arranged on the valve body, and the supporting part of the hanging piece is located on the upper sides of the connectors. The length direction of the suspension part supporting part is parallel to the axis of the pipe body, and a detection unit is arranged in the suspension part supporting part and used for recognizing the sealing state of connection between the connector and the pipeline.

Description

Technical Field

[0001] The utility model relates to the technical field of electromagnetic valves, in particular to an anti-overflow monitoring device for a valve seat of an electromagnetic valve. Background Art

[0002] With the continuous improvement of industrial automation and intelligence, solenoid valves are indispensable key components in fluid control systems, and their performance stability and reliability have a vital impact on the overall operating efficiency and safety of the system. However, during the long-term use of solenoid valves, due to the influence of various factors such as wear, corrosion, impurity blockage, etc., the valve seat is prone to problems such as poor sealing and slow movement. If these problems are not discovered and solved in time, it will not only affect the normal operation of the system, but may also cause equipment damage and even cause safety accidents.

[0003] Traditional solenoid valve seat inspection methods usually require manual disassembly, inspection and replacement, which is not only cumbersome and inefficient, but also requires professionals to perform, increasing maintenance costs. In addition, since solenoid valves are usually installed in more complex piping systems, the disassembly and installation process can easily cause secondary contamination and damage to the system.

[0004] Therefore, developing a device that can perform self-checking on the solenoid valve seat to achieve real-time monitoring and early warning of the valve seat status has become an important direction for the current development of solenoid valve technology. This self-checking solenoid valve seat can not only detect and deal with valve seat problems in a timely manner, but also improve the automation and intelligence level of the system, reduce maintenance costs, and ensure the safe and stable operation of the system. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides an anti-overflow monitoring device for a solenoid valve seat, which solves the problems raised in the above-mentioned background technology.

[0007] (II) Technical solution

[0008] To achieve the above objectives, the utility model is implemented through the following technical solutions: a solenoid valve seat overflow monitoring device, including a valve body, a valve cover, an electromagnetic coil sleeve, a tube body, an interface and a suspension, the valve cover is arranged on the valve body, the electromagnetic coil sleeve is arranged on the valve cover, a moving iron core and an elastic member are arranged in the electromagnetic coil sleeve, the tube body is arranged on the lower side of the valve body, the interface is arranged at both axial ends of the tube body, the interface is used to connect the tube body with a pipeline, the suspension includes a connecting part and a supporting part, the suspension connecting part is fixedly arranged on the valve body, the suspension supporting part is located on the upper side of the interface, the length direction of the suspension supporting part is parallel to the axis of the tube body, a detection unit is arranged in the suspension supporting part, and the detection unit is used to identify the sealing state of the connection between the interface and the pipeline.

[0009] Preferably, a sealing gasket is provided between the valve cover and the valve body.

[0010] Preferably, the suspension member connecting portion is connected to the valve body surface via fixing screws.

[0011] Preferably, the detection unit includes a sliding sheet, a movable contact, a fixed contact and a spring, a sliding cavity is opened in the support part of the suspension member, the sliding sheet is slidably arranged in the sliding cavity, the movable contact is fixed on the sliding sheet, the fixed contact is fixed on the inner wall of the sliding cavity, the spring is fixedly connected between the sliding sheet and the inner wall of the sliding cavity, and a through hole is opened in the sliding sheet.

[0012] Preferably, the inner diameter of the through hole gradually decreases from the inside to the outside.

[0013] (III) Beneficial effects

[0014] The utility model provides a solenoid valve seat overflow prevention monitoring device, which has the following beneficial effects:

[0015] 1. This solution uses a sliding plate to identify the medium ejected due to leakage, and uses a built-in self-checking device to monitor in real time the working status of the solenoid valve seat interface that is difficult for maintenance personnel to observe with the naked eye. Once a loose seal is found in the valve seat, an early warning signal can be immediately issued to remind the operator to deal with it in time, effectively avoiding the expansion of the fault. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0017] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0018] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at point A in the middle.

[0019] In the figure: 11, valve body; 12, valve cover; 13, sealing gasket; 14, electromagnetic coil cover; 15, tube body; 16, interface; 17, hanging part; 20, fixing screw; 21, sliding cavity; 22, sliding sheet; 23, movable contact; 24, fixed contact; 25, spring; 26, through hole. DETAILED DESCRIPTION

[0020] The utility model provides a solenoid valve seat overflow prevention monitoring device, such as Figure 1-3 As shown, it includes a valve body 11, a valve cover 12, an electromagnetic coil sleeve 14, a tube body 15, an interface 16 and a suspension member 17. The valve cover 12 is arranged on the valve body 11, the electromagnetic coil sleeve 14 is arranged on the valve cover 12, a moving iron core and an elastic member are arranged in the electromagnetic coil sleeve 14, the tube body 15 is arranged on the lower side of the valve body 11, the interface 16 is arranged at both axial ends of the tube body 15, the interface 16 is used to connect the tube body 15 with the pipeline, the suspension member 17 includes a connecting part and a supporting part, the connecting part of the suspension member 17 is fixedly arranged on the valve body 11, the supporting part of the suspension member 17 is located on the upper side of the interface 16, the length direction of the supporting part of the suspension member 17 is parallel to the axis of the tube body 15, and a detection unit is arranged in the supporting part of the suspension member 17, and the detection unit is used to identify the sealing state of the connection between the interface 16 and the pipeline.

[0021] A sealing gasket 13 is provided between the valve cover 12 and the valve body 11 .

[0022] like Figure 2 As shown, the connecting portion of the suspension member 17 is connected to the surface of the valve body 11 via a fixing screw 20 .

[0023] The detection unit includes a sliding sheet 22, a movable contact 23, a fixed contact 24 and a spring 25. A sliding cavity 21 is opened in the support part of the suspension member 17. The sliding sheet 22 is slidably arranged in the sliding cavity 21. The movable contact 23 is fixed on the sliding sheet 22. The fixed contact 24 is fixed on the inner wall of the sliding cavity 21. The spring 25 is fixedly connected between the sliding sheet 22 and the inner wall of the sliding cavity 21. A through hole 26 is opened in the sliding sheet 22. The through hole 26 prevents the medium from flowing from the side of the sliding sheet 22 into the sliding cavity 21 and remaining in the sliding cavity 21.

[0024] The movable contact 23 and the fixed contact 24 are electrically connected to an external detection terminal device. When the movable contact 23 and the fixed contact 24 are in contact, the movable contact 23 and the fixed contact 24 are controlled to conduct electricity and an alarm is sent to the maintenance personnel through the detection terminal device.

[0025] like Figure 3 As shown, the inner diameter of the through hole 26 gradually decreases from the inside to the outside, thereby facilitating the medium to flow out from the inside to the outside and reducing the medium being collected by the through hole 26 into the sliding cavity 21 .

[0026] The valve body 11 controls the position of the valve core through the electromagnetic coil sleeve 14, cuts off or connects the air source to change the flow direction of the fluid, controls the direction of the medium, and thus controls the opening and closing of the valve.

[0027] When the interface 16 leaks, the internal pressure of the tube body 15 is greater than the external pressure, causing the leaked medium to be ejected outward. When the leaked medium is ejected onto the sliding sheet 22, the outer surface of the sliding sheet 22 is subjected to pressure, and then slides inward and compresses the spring 25. During the sliding process of the sliding sheet 22, the movable contact 23 is driven to contact the fixed contact 24. When the movable contact 23 touches the fixed contact 24, the detection terminal device alarms the maintenance personnel.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A solenoid valve seat overflow prevention monitoring device, characterized in that: The invention comprises a valve body (11), a valve cover (12), an electromagnetic coil sleeve (14), a tube body (15), an interface (16) and a hanging part (17), wherein the valve cover (12) is arranged on the valve body (11), the electromagnetic coil sleeve (14) is arranged on the valve cover (12), a moving iron core and an elastic part are arranged in the electromagnetic coil sleeve (14), the tube body (15) is arranged on the lower side of the valve body (11), the interface (16) is arranged at the axial ends of the tube body (15), and the interface (16) is used to The tube body (15) is connected to a pipeline, and the suspension member (17) comprises a connecting portion and a supporting portion. The connecting portion of the suspension member (17) is fixedly arranged on the valve body (11), and the supporting portion of the suspension member (17) is located on the upper side of the interface (16). The length direction of the supporting portion of the suspension member (17) is parallel to the axis of the tube body (15). A detection unit is arranged in the supporting portion of the suspension member (17), and the detection unit is used to identify the sealing state of the connection between the interface (16) and the pipeline.

2. The solenoid valve seat overflow prevention monitoring device according to claim 1, characterized in that: A sealing gasket (13) is provided between the valve cover (12) and the valve body (11).

3. The solenoid valve seat overflow prevention monitoring device according to claim 1, characterized in that: The connecting portion of the suspension member (17) is connected to the surface of the valve body (11) via a fixing screw (20).

4. The solenoid valve seat overflow prevention monitoring device according to claim 1, characterized in that: The detection unit comprises a sliding sheet (22), a movable contact (23), a fixed contact (24) and a spring (25); a sliding cavity (21) is provided in a support portion of the suspension member (17); the sliding sheet (22) is slidably arranged in the sliding cavity (21); the movable contact (23) is fixedly arranged on the sliding sheet (22); the fixed contact (24) is fixedly arranged on an inner wall of the sliding cavity (21); the spring (25) is fixedly connected between the sliding sheet (22) and the inner wall of the sliding cavity (21); and a through hole (26) is provided in the sliding sheet (22).

5. The solenoid valve seat overflow prevention monitoring device according to claim 4, characterized in that: The inner diameter of the through hole (26) gradually decreases from the inside to the outside.

Images