CN219140023U

CN219140023U - Alarm device for preventing valve body from misoperation

Info

Publication number: CN219140023U
Application number: CN202223554176.0U
Authority: CN
Inventors: 喻平; 景鑫玮; 鞠幸根
Original assignee: Sinochem Zhuhai Petrochemical Terminal Co Ltd
Current assignee: Sinochem Zhuhai Petrochemical Terminal Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-06
Anticipated expiration: 2032-12-28

Abstract

The utility model discloses an alarm device for preventing valve misoperation, which relates to the technical field of emergency shut-off valves, and can remind operators to confirm the valve body state when the valve body acts, so that the valve misoperation caused by abnormal conditions is effectively avoided, and the potential safety hazard is reduced. An alarm device for preventing valve body misoperation comprises an emergency stop valve, a valve core action detection assembly and an alarm assembly. The emergency shut-off valve comprises a valve body, a valve core, a valve rod, a valve cover, a connecting part and an actuator. The valve rod is connected with the valve core and the actuator. The emergency cut-off valve generates an action, the valve core action detection component detects that the rear alarm component can send an alarm signal to remind a worker to confirm the state of the emergency cut-off valve, and if the emergency cut-off valve is in normal action, the action is finished, and then the alarm is automatically stopped. If the emergency cut-off valve is abnormally operated, the emergency cut-off valve is not completely opened or closed, and the alarm is continued until the staff manually confirms and then stops alarming.

Description

Alarm device for preventing valve body from misoperation

Technical Field

The utility model relates to the technical field of emergency shut-off valves, in particular to an alarm device for preventing valve body misoperation.

Background

The emergency cut-off valve is a quick-closing valve, is often used for medium pipeline occasions such as inflammable and explosive oil products, fuel gas and the like, and can quickly and automatically close the pipeline when sudden or emergency situations occur, so that accidents are avoided, and the safety protection effect is achieved.

The emergency cut-off valve adopts two forms of electrohydraulic valve or pneumatic valve, and the electrohydraulic valve can simply realize automatic control, remote control, and has the advantages of rapidness, flexibility and the like. The pneumatic valve is opened and closed rapidly under the condition of stable air source pressure, and is free to open and close, low in cost and convenient to maintain.

Normally, the emergency shut-off valve automatically closes as long as the ESD condition is reached, but the emergency shut-off valve is not malfunction-protected, and is also abnormally closed in a non-emergency situation. If the UPS is unstable, the failure and the power failure can cause the electricity loss of the electrohydraulic emergency cut-off valve control system, trigger the ESD function and automatically close the valve. If the air source is abnormal, the pneumatic valve is out of air, and the valve is closed by misoperation.

In the case of unattended on-site situations, the valve opens or closes suddenly, with serious consequences. If the pipeline is carrying material, the sudden closing of the valve can cause the overpressure of the pipeline, causing leakage of the material in the pipeline or damage to the overpressure of the equipment.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art, and provides an alarm device for preventing valve misoperation, which can remind an operator to confirm the valve body state when the valve body acts, effectively avoid valve misoperation caused by abnormal conditions and reduce potential safety hazards.

According to a first aspect of the present utility model, there is provided an alarm device for preventing malfunction of a valve body, comprising an emergency shut-off valve including a valve body, a valve core, a valve stem, a valve cover, a connecting portion, and an actuator, the valve stem connecting the valve core and the actuator; the valve core action detection assembly is arranged on the connecting part and is connected with the valve rod; and the alarm component is arranged on the connecting part and connected with the valve core action detection component, and when the valve core action detection component detects the valve core action, the alarm component gives an alarm to remind a worker to confirm the state of the emergency cut-off valve.

The beneficial effects are that: an alarm device for preventing valve body misoperation comprises an emergency stop valve, a valve core action detection assembly and an alarm assembly. The emergency shut-off valve comprises a valve body, a valve core, a valve rod, a valve cover, a connecting part and an actuator. The valve rod is connected with the valve core and the actuator. The valve core action detection assembly is arranged on the connecting part and connected with the valve rod. The alarm component is arranged on the connecting part and connected with the valve core action detection component. When the valve core action detection component detects the valve core action, the alarm component gives an alarm to remind a worker to confirm the state of the emergency cut-off valve. The emergency cut-off valve generates an action, the valve core action detection component detects that the rear alarm component can send an alarm signal to remind a worker to confirm the state of the emergency cut-off valve, and if the emergency cut-off valve is in normal action, the action is finished, and then the alarm is automatically stopped. If the emergency cut-off valve is abnormally operated, the emergency cut-off valve is not completely opened or closed, and the alarm is continued until the staff manually confirms and then stops alarming. The risk brought by misoperation of the emergency cut-off valve can be greatly avoided.

According to the alarm device for preventing the misoperation of the valve body, the valve core action detection assembly comprises: the detection groove is formed in the connecting part; the mounting plate is arranged on the connecting part and positioned at one side of the detection groove; the trigger ring is sleeved on the valve rod, a detection rod is arranged on the trigger ring, the detection rod extends out of the detection groove, and when the valve rod moves, the detection rod is driven to move along the detection groove; and the trigger assembly is arranged at the end part of the mounting plate and positioned at the detection groove and is used for detecting the action of the detection rod.

According to the alarm device for preventing the misoperation of the valve body, the trigger assembly comprises: the first trigger piece is arranged on the mounting plate and is positioned at one end of the detection groove; the second trigger piece is arranged on the mounting plate and positioned at the other end of the detection groove; when the valve core is opened, the valve rod is lifted to drive the detection rod to lift to the upper end of the detection groove to trigger the first trigger piece; when the valve core is closed, the valve rod descends to drive the detection rod to descend to the lower end of the detection groove to trigger the second trigger piece.

According to the alarm device for preventing the misoperation of the valve body, the alarm assembly comprises the alarm and the control switch, the alarm is arranged on the mounting plate and is electrically connected with the trigger assembly, and the control switch is arranged on the mounting plate and is electrically connected with the alarm.

According to the alarm device for preventing the misoperation of the valve body, the alarm is an audible and visual alarm.

According to the alarm device for preventing the misoperation of the valve body, the control switch is a manual confirmation switch and is used for eliminating the alarm of the alarm.

According to the alarm device for preventing misoperation of the valve body, the first trigger piece and the second trigger piece are travel switches.

According to the alarm device for preventing the misoperation of the valve body, the first trigger piece and the second trigger piece are both photoelectric switches.

Drawings

The utility model is further described below with reference to the drawings and examples;

FIG. 1 is a schematic diagram of a preferred embodiment of the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a top view of a trigger ring according to a preferred embodiment of the present utility model.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1 to 3, an alarm device for preventing malfunction of a valve body includes an emergency shut-off valve 10, a valve body movement detection unit 20, and an alarm unit 30. The slam-shut valve 10 includes a valve body 11, a valve body 12, a valve stem 13, a bonnet 14, a connecting portion 15, and an actuator 16. The valve stem 13 connects the valve element 12 and the actuator 16. The valve element operation detection unit 20 is provided on the connection portion 15 and connected to the valve stem 13. The alarm unit 30 is provided on the connection portion 15 and connected to the valve element operation detection unit 20. When the valve core motion detection assembly 20 detects the motion of the valve core 12, the alarm assembly 30 gives an alarm to remind a worker to confirm the state of the emergency cut-off valve 10.

The valve rod 13 is connected to the valve body 12, the valve rod 13 is raised when the valve body 12 is raised, the valve rod 13 is lowered when the valve body 12 is lowered, the emergency shut-off valve 10 is opened when the valve body 12 is raised, and the emergency shut-off valve 10 is closed when the valve body 12 is lowered.

It will be appreciated that if the slam-shut valve 10 is initially in the closed state, and the spool motion detection assembly 20 detects that the valve stem 13 is initially lifted, the alarm assembly 30 alarms to alert the operator that the slam-shut valve 10 is in a state that requires the operator to manually confirm the slam-shut valve 10. If the emergency shut-off valve 10 is in a normal operation state, the valve body operation detection unit 20 detects that the valve rod 13 is lifted to a state where the emergency shut-off valve 10 is fully opened, and at this time, the valve body operation detection unit 20 sends a signal to stop the alarm of the alarm unit 30.

Conversely, if the emergency shutdown valve 10 is initially in the open state, the valve element motion detection unit 20 detects that the valve rod 13 starts to descend, and the alarm unit 30 alarms to alert the operator that the emergency shutdown valve 10 is in a state that requires the operator to manually confirm the emergency shutdown valve 10. If the emergency shut-off valve 10 is in a normal operation state, the valve body operation detection unit 20 detects that the valve rod 13 is lowered to a state where the emergency shut-off valve 10 is completely closed, and at this time, the valve body operation detection unit 20 sends a signal to stop the alarm of the alarm unit 30.

That is, in the embodiment of the present utility model, when the emergency shut-off valve 10 is operated, the alarm unit 30 sends an alarm signal to prompt a worker to confirm the state of the emergency shut-off valve 10, and when the emergency shut-off valve 10 is normally operated, the alarm is automatically stopped after the operation is completed. If the emergency shut-off valve 10 is abnormally operated, the emergency shut-off valve 10 is not completely opened or closed, and the alarm is continued until the worker stops the alarm after the worker confirms it manually. The risk of malfunction of the emergency shutdown valve 10 can be greatly avoided.

Referring to fig. 1 to 3, the valve body movement detection assembly 20 includes a detection groove 21, a mounting plate 22, a trigger ring 23, and a trigger assembly 24. The detection groove 21 is provided in the connection portion 15. The mounting plate 22 is provided on the connection portion 15 and is located on one side of the detection groove 21. The trigger ring 23 is sleeved on the valve rod 13. The trigger ring 23 is provided with a detection lever 231. The detection lever 231 protrudes from the detection groove 21. When the valve rod 13 moves, the detection rod 231 is driven to move along the detection groove 21. The trigger assembly 24 is provided at the mounting plate 22 at an end of the detection groove 21 for detecting the operation of the detection lever 231.

It will be appreciated that the real-time monitoring of the position of the valve element 12 is accomplished by the trigger assembly 24 passing through the detection lever 231 extending out of the detection slot 21 through the trigger ring 23, the detection lever 231 being at the lowermost end of the detection slot 21 when the valve element 12 is fully closed, and the detection lever 231 being at the uppermost end of the detection slot 21 when the valve element 12 is fully open.

Referring to fig. 1-3, the trigger assembly 24 includes a first trigger 241 and a second trigger 242. The first trigger 241 is provided on the mounting plate 22 at one end of the detection groove 21. The second trigger 242 is disposed on the mounting plate 22 at the other end of the detection slot 21. When the valve core 12 is opened, the valve rod 13 is lifted to drive the detection rod 231 to lift to the upper end of the detection groove 21 to trigger the first trigger piece 241. When the valve core 12 is closed, the valve rod 13 descends to drive the detection rod 231 to descend to the lower end of the detection groove 21 to trigger the second trigger piece 242.

It will be appreciated that when the valve element 12 is fully closed, the detection rod 231 is at the lowest end of the detection groove 21, and when the valve element 12 is lifted to open the valve, the detection rod 231 is separated from the second trigger piece 242, the second trigger piece 242 will send an alarm signal to the alarm assembly 30, and the alarm will not be stopped until the detection rod 231 is lifted to the uppermost end of the detection groove 21, the first trigger piece 241 is triggered, or the alarm is manually closed by a worker.

When the valve body 12 is fully opened, the detection lever 231 is at the uppermost end of the detection groove 21. At this time, if the valve body 12 is lowered to close the valve, the detecting rod 231 is separated from the first trigger 241, the first trigger 241 will send an alarm signal to the alarm unit 30, and the alarm will not be stopped until the detecting rod 231 is lowered to the lowest end of the detecting groove 21, the second trigger 242 is triggered, or the worker manually closes the alarm.

Referring to fig. 1 to 3, the alarm assembly 30 includes an alarm 31 and a manipulation switch 32, the alarm 31 being disposed on the mounting plate 22 and electrically connected to the trigger assembly 24, and the manipulation switch 32 being disposed on the mounting plate 22 and electrically connected to the alarm 31.

It should be noted that, in the embodiment of the present utility model, the alarm 31 is an audible and visual alarm.

It can be understood that the staff is reminded through various information transmission ways of sound and light, and the staff can be reminded to the maximum extent.

It should be noted that, in some embodiments of the present utility model, the alarm signal may also be sent to the personal intelligent terminal of the staff through the network to remind the staff.

It should be noted that, in the embodiment of the present utility model, the control switch 32 is a manual confirmation switch for eliminating the alarm of the alarm 31.

It can be understood that the alarm can be eliminated only by manually operating the switch, so that a worker can walk to the emergency cut-off valve 10 to confirm the state of the emergency cut-off valve 10, and the danger caused by misoperation of the valve body can be avoided.

It should be noted that, in some embodiments of the present utility model, the first trigger piece 241 and the second trigger piece 242 are both travel switches, and the detection rod 231 triggers the travel switches to complete the position detection of the valve core 12.

It should be noted that the first trigger piece 241 and the second trigger piece 242 are all travel switches and are only one embodiment of the present utility model, and in some other embodiments of the present utility model, the first trigger piece 241 and the second trigger piece 242 are all photoelectric switches, and the detection of the position of the valve core 12 is completed through the detection rod 231 passing through the photoelectric switches.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims

1. An alarm device for preventing malfunction of a valve body, comprising:

an emergency shut-off valve (10) comprising a valve body (11), a valve core (12), a valve rod (13), a valve cover (14), a connecting part (15) and an actuator (16), wherein the valve rod (13) is connected with the valve core (12) and the actuator (16);

a valve element operation detection unit (20) which is provided on the connection unit (15) and is connected to the valve rod (13);

and an alarm component (30) which is arranged on the connecting part (15) and is connected with the valve core action detection component (20), when the valve core action detection component (20) detects the action of the valve core (12), the alarm component (30) gives an alarm to remind a worker to confirm the state of the emergency cut-off valve (10).

2. The warning device for preventing malfunction of a valve body according to claim 1, characterized in that the valve element operation detection assembly (20) includes:

a detection groove (21) provided on the connection portion (15);

a mounting plate (22) provided on the connection portion (15) and located on one side of the detection groove (21);

the trigger ring (23) is sleeved on the valve rod (13), a detection rod (231) is arranged on the trigger ring (23), the detection rod (231) extends out of the detection groove (21), and when the valve rod (13) moves, the detection rod (231) is driven to move along the detection groove (21);

and a trigger assembly (24) which is arranged on the mounting plate (22) and is positioned at the end part of the detection groove (21) and is used for detecting the action of the detection rod (231).

3. An alarm device for preventing malfunction of a valve body according to claim 2, in which the trigger assembly (24) comprises:

a first trigger piece (241) arranged on the mounting plate (22) and positioned at one end of the detection groove (21);

a second trigger piece (242) which is arranged on the mounting plate (22) and is positioned at the other end of the detection groove (21);

when the valve core (12) is opened, the valve rod (13) rises to drive the detection rod (231) to rise to the upper end of the detection groove (21) to trigger the first trigger piece (241);

when the valve core (12) is closed, the valve rod (13) descends to drive the detection rod (231) to descend to the lower end of the detection groove (21) to trigger the second trigger piece (242).

4. An alarm device for preventing malfunction of a valve body according to claim 2, in which the alarm assembly (30) comprises an alarm (31) and a control switch (32), the alarm (31) being arranged on the mounting plate (22) and electrically connected to the trigger assembly (24), the control switch (32) being arranged on the mounting plate (22) and electrically connected to the alarm (31).

5. An alarm device for preventing malfunction of a valve body according to claim 4, in which the alarm (31) is an audible and visual alarm.

6. An alarm device for preventing malfunction of a valve body according to claim 4, in which the operating switch (32) is a manual confirmation switch for eliminating the alarm of the alarm (31).

7. A valve malfunction prevention warning device according to claim 3, characterized in that the first trigger member (241) and the second trigger member (242) are both travel switches.

8. A valve malfunction prevention warning device according to claim 3, characterized in that the first trigger member (241) and the second trigger member (242) are both photoelectric switches.