Safety valve with elastic force monitoring device

Abstract

The safety valve with the elastic force monitoring device comprises a valve body, a valve clack assembly, a valve rod and an elastic assembly, the lower end of the valve rod is matched with the valve clack assembly, the elastic assembly provides elastic force for the valve rod to move to drive the valve clack assembly to close the valve body, the elastic assembly comprises an elastic seat and an elastic piece, the elastic seat is arranged on the valve rod in a sleeved mode, and the elastic piece is arranged on the elastic seat. The safety valve further comprises an elastic force monitoring assembly, the elastic force monitoring assembly comprises a monitoring component, and the monitoring component is arranged between the elastic base and the elastic piece and used for monitoring and feeding back elastic force changes of the elastic piece in real time. According to the utility model, the change of the elastic force can be remotely monitored in real time in use, the monitoring data can be displayed and recorded in real time, the deviation of the elastic force can be prompted in time, the informatization and visualization of a user can be realized, and the safety and the economic benefit can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valves and relates to a safety valve, in particular to a safety valve with an elastic force monitoring device. Background Art

[0002] Safety valves are special equipment and are the last safety barrier for devices, pipelines, pressure vessels and other equipment. Therefore, when devices, pipelines, pressure vessels and other equipment are operating normally, it is necessary to ensure that the safety valves are fully functional and perform properly. At present, most of the safety valves are checked for their functional integrity through regular calibration (once a year) and regular inspections; since the performance characteristics of safety valves cannot be monitored in real time, safety valves may still fail.

[0003] With the development of society, safety and information technology are becoming more and more important. Many users require to monitor the performance status of safety valves at all times to ensure that the safety valves can operate reliably when equipment such as devices, pipelines, and pressure vessels are over-pressured. Utility Model Content

[0004] The utility model aims to provide a safety valve with an elastic force monitoring device.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A safety valve with an elastic force monitoring device comprises a valve body, a valve flap assembly, a valve stem and an elastic assembly. The lower end of the valve stem cooperates with the valve flap assembly. The elastic assembly gives the valve stem an elastic force to move and drive the valve flap assembly to close the valve body. The elastic assembly comprises an elastic seat and an elastic member. The elastic seat is sleeved on the valve stem. The elastic member is connected to the elastic seat. The safety valve also comprises an elastic force monitoring assembly. The elastic force monitoring assembly comprises a monitoring component. The monitoring component is arranged between the elastic seat and the elastic member for real-time monitoring and feedback of changes in the elastic force of the elastic member.

[0007] Preferably, the above technical solution comprises an upper elastic seat and a lower elastic seat, the elastic member is connected between the lower elastic seat and the upper elastic seat, the monitoring component is arranged between the lower elastic seat and the elastic member, or the monitoring component is arranged between the upper elastic seat and the elastic member.

[0008] Preferably, in the above technical solution, the monitoring component is fixedly connected to the elastic seat, and one end of the elastic member is fixedly connected to the monitoring component.

[0009] Preferably, in the above technical solution, the safety valve further comprises a valve cover, the valve cover is arranged on the valve body, the valve stem passes through the valve body into the valve cover, and the elastic component is arranged in the valve cover.

[0010] Further preferably, the elastic force monitoring component also includes a power supply and a signal display, the power supply is used to power the monitoring component, the signal display is used to display and record the data monitored by the monitoring component, and the power supply and signal display are connected to the monitoring component via a cable.

[0011] More preferably, a hole is formed on the valve cover, and the cable is led out from the hole and connected to the power supply and signal display.

[0012] Still further preferably, a sealing member is provided between the hole and the cable.

[0013] More preferably, the elastic force monitoring component further includes an alarm component, and the alarm component is connected to the monitoring component via the cable.

[0014] Further preferably, the safety valve also includes an adjusting component, which includes an adjusting screw and a locking nut. The adjusting screw is sleeved on the valve stem and threadedly connected to the valve cover. The lower end of the adjusting screw is abutted against the elastic seat. The locking nut is screwed on the adjusting screw to lock the adjusting screw and the valve cover relative to each other.

[0015] Preferably, in the above technical solution, the monitoring component is a pressure sensor.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] The utility model can monitor the change of elastic force remotely and in real time during use, display and record the monitoring data in real time, and promptly remind users when the elastic force deviates, so as to help users realize informatization and visualization and improve safety and economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Attached Figure 1 It is a cross-sectional schematic diagram of a safety valve in the prior art;

[0019] Attached Figure 2 Schematic cross-sectional view of the safety valve in this embodiment.

[0020] In the above attached figure:

[0021] 10. Valve body; 11. Valve seat;

[0022] 20. Guide sleeve; 21. Recoil disc; 22. Valve disc;

[0023] 3. Valve cover; 30. Hole;

[0024] 4. Valve stem;

[0025] 50. lower elastic seat; 51. upper elastic seat; 52. elastic member;

[0026] 6. Protective cover;

[0027] 70. Adjusting screw; 71. Locking nut;

[0028] 8. Protective cover;

[0029] 90. Monitoring component; 91. Power supply; 92. Signal display; 93. Alarm component; 94. Cable; 95. Filling. DETAILED DESCRIPTION

[0030] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are 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.

[0031] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0032] like Figure 1 The safety valve with elastic force monitoring device shown in the figure includes a valve body, a valve disc assembly, a valve cover 3, a valve stem 4, an elastic assembly, an adjustment assembly, a protective cover, etc. Specifically:

[0033] The valve body includes a valve body 10 and a valve seat 11. The valve seat 11 is installed on the valve body 10. The openings of the valve body 10 and the valve seat 11 overlap to form an inlet of the valve. The outlet of the valve seat 11 is connected to the outlet of the valve body 10, and the outlet of the valve body 10 forms the outlet of the valve.

[0034] The valve flap assembly includes a guide sleeve 20, a recoil disc 21, and a valve flap 22. The guide sleeve 20 is fixed on the valve body 10. The recoil disc 21 is arranged in the guide sleeve 20 and can move under the guidance of the guide sleeve 20. The valve flap 22 is connected to the recoil disc 21 and closes the outlet of the valve seat 11 during normal operation.

[0035] The valve cover 3 is covered on the valve body 10 . In the figure, the guide sleeve 20 is fixed between the valve body 10 and the valve cover 3 .

[0036] The valve stem 4 is disposed in the valve cover 3 , and the lower end of the valve stem 4 cooperates with the valve disc assembly. In the figure, the lower end of the valve stem 4 abuts against the recoil disk 21 , and the upper end of the valve stem 4 passes through the valve cover 3 .

[0037] The elastic component is arranged in the valve cover 3, and the elastic component gives the valve stem 4 an elastic force to move and drive the valve disc component to close the valve body 10. The elastic component includes a lower elastic seat 50, an upper elastic seat 51 and an elastic member 52. The lower elastic seat 50 and the upper elastic seat 51 are sleeved on the valve stem 4, and the elastic member 52 is connected between the lower elastic seat 50 and the upper elastic seat 51. The elastic member 52 can be a spring. Among them, a limiter is arranged at the lower part of the valve stem 4 to fix the lower elastic seat 50.

[0038] The adjustment assembly includes an adjustment screw 70 and a locking nut 71. The adjustment screw 70 is sleeved on the valve stem 4 and threadedly connected to the valve cover 3. The lower end of the adjustment screw 70 extends into the valve cover 3 and abuts against the top of the upper elastic seat 51. The locking nut 71 is screwed on the adjustment screw 70 to relatively lock the adjustment screw 70 and the valve cover 3. During adjustment, by rotating the adjustment screw 70, the threaded connection between the adjustment screw 70 and the valve cover 3 allows the adjustment screw 70 to move up and down relative to the valve cover 3, thereby adjusting the distance between the lower elastic seat 50 and the upper elastic seat 51 upward or downward, thereby adjusting the set pressure for opening the valve; after adjusting the adjustment screw 70, tighten the locking nut 71.

[0039] The protective cover 8 is disposed on the top of the valve cover 3 , covering the upper end of the valve stem 4 , the adjusting screw 70 , and the locking nut 71 .

[0040] In this embodiment: the safety valve further includes an elastic force monitoring component, which includes a monitoring component 90, a power supply 91, a signal display 92, and an alarm component 93. Among them:

[0041] The monitoring component 90 is arranged between the elastic seat and the elastic member 52, and is used for real-time monitoring and feedback of the elastic force change of the elastic member 52. Specifically, the monitoring component 90 is fixedly connected to the elastic seat, and one end of the elastic member 95 is fixedly connected to the monitoring component 90. When the safety valve is assembled, the monitoring component 90 can be arranged between the lower elastic seat 50 and the elastic member 52, or between the upper elastic seat 51 and the elastic member 52, mainly considering the convenience of installation. The monitoring component 90 can be a pressure sensor.

[0042] The power supply 91, the signal display 92, and the alarm component 93 are all arranged outside the safety valve. The power supply 91 is used to supply power to the monitoring component 90, the signal display 61 is used to display and record the data monitored by the monitoring component 90, and the alarm component 93 is used to alarm when the monitoring data of the monitoring component 90 exceeds the standard. The power supply 91, the signal display 92, and the alarm component 93 are all connected to the monitoring component 90 through the cable 94. The valve cover 3 in this embodiment is a sealing structure, and the power supply 91, the signal display 92, and the alarm component 93 are all arranged outside the valve cover 3, so a hole 30 is opened on the valve cover 3, and the cable 91 is led out from the hole 30, and a sealing member such as a packing 95 can be arranged between the hole 30 and the cable 91 to achieve sealing. Of course, there is no need to open a hole for the valve cover with a window structure, and the cable can be directly led out.

[0043] During use: the safety valve completes factory tests (set pressure test, sealing test, etc.) according to the specification or user requirements; the monitoring component 90 is connected to the power supply 91, the signal display 92, and the alarm component 93 to record the elastic force under the factory set pressure; according to the specification or the set pressure deviation given by the user, the range of the spring force is calculated (it can also be measured through the set pressure test), and the calculation formula is: F=PxA, F is the spring force, P is the set pressure of the safety valve, and A is the middle diameter area of ​​the sealing surface (the middle value of the inner diameter and outer diameter of the valve disc sealing surface); during the use of the safety valve, the size of the elastic force of the elastic component is monitored and fed back in real time through the monitoring component 90, and the signal display 92 collects and displays the elastic force data in real time to form a database to provide data support for subsequent valve inspection and maintenance; if there is a problem with the valve, the data can also be shared with the valve manufacturer to optimize the valve structure design and manufacturing; if it exceeds the given range, the alarm component 93 will immediately alarm to remind the operation and maintenance personnel to check and repair.

[0044] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A safety valve with an elastic force monitoring device, comprising a valve body, a valve flap assembly, a valve stem and an elastic assembly, wherein the lower end of the valve stem cooperates with the valve flap assembly, and the elastic assembly imparts elastic force to the valve stem to drive the valve flap assembly to close the valve body, and the elastic assembly comprises an elastic seat and an elastic member, wherein the elastic seat is sleeved on the valve stem, and the elastic member is connected to the elastic seat, and is characterized in that: The safety valve further comprises an elastic force monitoring assembly, wherein the elastic force monitoring assembly comprises a monitoring component, and the monitoring component is arranged between the elastic seat and the elastic member, and is used for real-time monitoring and feedback of elastic force changes of the elastic member.

2. The safety valve with elastic force monitoring device according to claim 1, characterized in that: The elastic seat includes an upper elastic seat and a lower elastic seat, the elastic member is connected between the lower elastic seat and the upper elastic seat, the monitoring component is arranged between the lower elastic seat and the elastic member, or the monitoring component is arranged between the upper elastic seat and the elastic member.

3. The safety valve with elastic force monitoring device according to claim 1 or 2, characterized in that: The monitoring component is fixedly connected to the elastic seat, and one end of the elastic member is fixedly connected to the monitoring component.

4. The safety valve with elastic force monitoring device according to claim 1, characterized in that: The safety valve further comprises a valve cover, which is arranged on the valve body, the valve stem passes through the valve body into the valve cover, and the elastic component is arranged in the valve cover.

5. The safety valve with elastic force monitoring device according to claim 4, characterized in that: The elastic force monitoring component also includes a power supply and a signal display. The power supply is used to supply power to the monitoring component, and the signal display is used to display and record the data monitored by the monitoring component. The power supply and signal display are connected to the monitoring component via cables.

6. The safety valve with elastic force monitoring device according to claim 5, characterized in that: The valve cover is provided with a hole, and the cable is led out from the hole and connected to the power supply and the signal display.

7. The safety valve with elastic force monitoring device according to claim 6, characterized in that: A sealing member is arranged between the hole and the cable.

8. The safety valve with elastic force monitoring device according to claim 5, characterized in that: The elastic force monitoring component also includes an alarm component, and the alarm component is connected to the monitoring component through the cable.

9. The safety valve with elastic force monitoring device according to claim 4, characterized in that: The safety valve also includes an adjusting component, which includes an adjusting screw and a locking nut. The adjusting screw is sleeved on the valve stem and threadedly connected to the valve cover. The lower end of the adjusting screw is against the elastic seat. The locking nut is screwed on the adjusting screw to lock the adjusting screw and the valve cover relative to each other.

10. The safety valve with elastic force monitoring device according to claim 1, characterized in that: The monitoring component is a pressure sensor.

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