CN219345658U - Device for controlling emergency shut-off valve - Google Patents
Device for controlling emergency shut-off valve Download PDFInfo
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- CN219345658U CN219345658U CN202320098281.3U CN202320098281U CN219345658U CN 219345658 U CN219345658 U CN 219345658U CN 202320098281 U CN202320098281 U CN 202320098281U CN 219345658 U CN219345658 U CN 219345658U
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Abstract
The application relates to the field of valve control, and discloses a device for controlling an emergency cut-off valve, which can quickly and effectively control the state of the emergency cut-off valve through remote input of an electric signal. The device comprises a valve control cylinder, a connecting backboard, an electromagnetic valve, a cylinder bracket and a valve. The valve control cylinder is internally provided with an adjusting spring, a spring pressing plate, a sealing diaphragm and a piston rod, the first end of the adjusting spring is connected with the spring pressing plate, the spring pressing plate is connected with the valve control cylinder through a bolt, the second end of the adjusting spring is connected with the upper surface of the sealing diaphragm, and the lower surface of the sealing diaphragm is connected with the piston rod. The valve control cylinder is provided with an air vent, the air vent is connected with the electromagnetic valve through a pipeline, and a valve rod of the valve is fixedly connected with the piston rod. When the electromagnetic valve is electrified, the electromagnetic valve ventilates the valve control cylinder through a ventilation pipeline, so that the sealing diaphragm compresses the regulating spring.
Description
Technical Field
The present application relates to the field of valve control, and in particular to a device for controlling an emergency shut-off valve.
Background
Today, the production and trade volume of LNG is rapidly increasing and LNG is being transported, and LNG tanks are being developed from sporadic attempts by individual enterprises to active intervention or even commercial operation by multiple enterprises by virtue of their flexible turnover and fast market cut-in, in addition to the well-known pipeline transportation and LNG (liquefied natural gas, LNG) carriers, and have received great attention from the national and local governments. According to relevant regulations, the LNG tank must be equipped with a safety accessory of an emergency shut-off valve, and the current common control method of the emergency shut-off valve is close-range manual control, and the method has a certain danger.
Disclosure of Invention
An object of the present application is to provide a device for controlling an emergency shut-off valve, which can rapidly and effectively control the state of the emergency shut-off valve by remotely inputting an electrical signal.
The application discloses a device for controlling emergency shut-off valve, include: the valve control cylinder (1), the connecting backboard (2), the electromagnetic valve (3), the cylinder bracket (4) and the valve (5);
an adjusting spring (11), a spring pressing plate (12), a sealing diaphragm (13) and a piston rod (14) are arranged in the valve control cylinder (1), a first end of the adjusting spring (11) is connected with the spring pressing plate (12), the spring pressing plate (12) is connected with the valve control cylinder (1) through a bolt, a second end of the adjusting spring (11) is connected with the upper surface of the sealing diaphragm (13), and the lower surface of the sealing diaphragm (13) is connected with the piston rod (14);
the valve control cylinder (1) is arranged on the connecting backboard (2), the valve control cylinder (1) is provided with a vent, the vent is connected with the electromagnetic valve (3) through a pipeline, and a valve rod (51) of the valve (5) is fixedly connected with the piston rod;
-the cylinder support (4) is configured to support the valve control cylinder (1), the cylinder support (4) being located between the valve control cylinder (1) and the valve (5);
the electromagnetic valve (3) is configured to vent air into the valve control cylinder (1) through the air vent pipe when energized, so that the sealing diaphragm compresses the regulating spring.
In a preferred embodiment, the device further comprises a first position indicator (6) and a second position indicator (7);
the first position indicator (6) and the second position indicator (7) are arranged on the connecting backboard (2), and a valve (5) opening sensing piece and a valve (5) closing sensing piece are arranged on the piston rod;
the first position indicator (6) and the second position indicator (7) are configured to emit an electrical signal to indicate the state of the valve (5) when in contact with the valve (5) open sensing piece and the valve (5) close sensing piece, respectively.
In a preferred embodiment, the device further comprises a fusible plug (8);
the fusible plug (8) is positioned on a vent line between the electromagnetic valve (3) and the valve control cylinder (1), and the fusible plug (8) is configured to put the emergency shut-off valve (5) in a closed state when a fire occurs.
In a preferred embodiment, the electromagnetic valve (3) is a two-position three-way electromagnetic valve (3).
In a preferred embodiment, the electromagnetic valve further comprises a filter (9), and the filter (9) is connected with the electromagnetic valve (3) through a filter pipeline.
In a preferred embodiment, the inlet end of the electromagnetic valve (3) is provided with a first channel (31) and a third channel, the first channel (31) is connected with the filter (9), the outlet end of the electromagnetic valve (3) is provided with a second channel (32), and the second channel (32) is connected with the air vent.
In a preferred embodiment, the solenoid valve (3) comprises an energized state and a de-energized state;
when the electromagnetic valve (3) is in an energized state, the first channel (31) and the second channel (32) are opened, and the third channel (33) is closed;
when the electromagnetic valve (3) is in a power-off state, the first channel (31) is closed, and the second channel (32) and the third channel (33) are opened.
In a preferred embodiment, a sealing fastener is mounted in the cylinder holder (4), the sealing fastener being configured to put the emergency shut-off valve (5) and the valve control cylinder (1) in a sealed state.
In a preferred embodiment, the solenoid valve (3) is connected to a remote control by a lead.
In a preferred embodiment, the cylinder support (4) is U-shaped.
In the embodiment of the application, the electromagnetic valve is adopted to remotely control the electromagnetic valve to control the air inlet and the air exhaust in the air cylinder, so that the sealing diaphragm in the air cylinder is lifted upwards to drive the piston rod and the valve rod, or reset to enable the piston rod and the valve rod to fall down, thereby realizing the control of the emergency cut-off valve;
further, by using a position indicator, the status of the emergency shut-off valve can be known;
further, the fusible plug can enable the tight cutting valve to be in a closed state all the time under the condition of fire, so that the safety of pipelines and equipment is protected.
In the present application, a number of technical features are described in the specification, and are distributed in each technical solution, which makes the specification too lengthy if all possible combinations of technical features (i.e. technical solutions) of the present application are to be listed. In order to avoid this problem, the technical features disclosed in the above summary of the present application, the technical features disclosed in the following embodiments and examples, and the technical features disclosed in the drawings may be freely combined with each other to constitute various new technical solutions (these technical solutions are all regarded as being already described in the present specification) unless such a combination of technical features is technically impossible. For example, in one example, feature a+b+c is disclosed, in another example, feature a+b+d+e is disclosed, and features C and D are equivalent technical means that perform the same function, technically only by alternative use, and may not be adopted simultaneously, feature E may be technically combined with feature C, and then the solution of a+b+c+d should not be considered as already described because of technical impossibility, and the solution of a+b+c+e should be considered as already described.
Drawings
FIG. 1 is a schematic structural diagram according to one embodiment of the present application;
FIG. 2 is a top view according to one embodiment of the present application;
FIG. 3 is a front view according to one embodiment of the present application;
FIG. 4 is a cross-sectional view of a valve control cylinder according to one embodiment of the present application;
FIG. 5 is a schematic diagram of the internal passages of a solenoid valve according to one embodiment of the present application.
Reference numerals illustrate:
1-a valve control cylinder; 11-an adjusting spring; 12-spring press plate; 13-sealing the membrane; 14-a piston rod; 2-connecting a backboard; 3-an electromagnetic valve; 31-a first channel; 32-a second channel; 33-a third channel; 4-cylinder bracket; 41-locking nut; 5-valve; 51-valve stem; 52-a valve cover; 53-valve body; 6-a first position indicator; 7-a second position indicator; 8-fusible plugs; 9-filter.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be understood by those skilled in the art that the claimed utility model may be practiced without these specific details and with various changes and modifications from the embodiments that follow.
Specific implementations of the utility model are described in detail below with reference to specific embodiments and the accompanying drawings:
fig. 1 is a schematic view showing a structure of an apparatus for controlling an emergency shut-off valve, the apparatus comprising: the valve control cylinder (1), the connecting backboard (2), the electromagnetic valve (3), the cylinder bracket (4) and the valve (5).
The valve control cylinder (1) is internally provided with an adjusting spring (11), a spring pressing plate (12), a sealing diaphragm (13) and a piston rod (14), as shown in fig. 4, a first end of the adjusting spring (11) is connected with the spring pressing plate (12), the spring pressing plate (12) is connected with the valve control cylinder (1) through a bolt, a second end of the adjusting spring (11) is connected with the upper surface of the sealing diaphragm (13), and the lower surface of the sealing diaphragm (13) is connected with the piston rod (14).
The valve control cylinder (1) is arranged on the connecting backboard (2), the valve control cylinder (1) is provided with an air vent, the air vent is connected with the electromagnetic valve (3) through a pipeline, and a valve rod (51) of the valve (5) is fixedly connected with the piston rod. The cylinder support (4) is configured to support the valve control cylinder (1), the cylinder support (4) being located between the valve control cylinder (1) and the valve (5), the cylinder support (4) preferably being U-shaped. The electromagnetic valve (3) is configured to ventilate the valve control cylinder (1) through a ventilation pipeline when the electromagnetic valve is electrified, so that the sealing diaphragm compresses the adjusting spring, when gas enters the valve control cylinder (1), the gas jacks up the sealing diaphragm and compresses the adjusting spring, the piston rod is lifted up along with the jacking of the sealing diaphragm, and the valve rod (51) connected with the bottom of the piston rod is driven to ascend, so that the emergency cut-off valve is opened. When the gas is discharged from the valve control cylinder (1), the sealing diaphragm and the piston rod move downwards under the action of the regulating spring and push the valve rod (51), so that the emergency cut-off valve is closed.
The device can also comprise a filter (9), wherein the filter (9) is connected with the electromagnetic valve (3) through a filtering pipeline, and the filter (9) can filter impurities and foreign matters in a gas medium to prevent damage and influence on downstream equipment.
The connection back plate (2) is provided with a first position indicator (6) and a second position indicator (7), as shown in fig. 2. The piston rod is provided with a valve (5) opening sensing piece and a valve (5) closing sensing piece, and the first position indicator (6) and the second position indicator (7) are configured to respectively send out electric signals to indicate the state of the valve (5) when the first position indicator and the second position indicator are respectively contacted with the valve (5) opening sensing piece and the valve (5) closing sensing piece. When the piston rod and the valve rod (51) of the emergency cut-off valve (5) move upwards to the full opening state of the valve (5), the hook of the first position indicator (6) is contacted with the opening sensing piece of the valve (5), the indicator is triggered and an electric signal is sent out to indicate that the valve (5) is in the full opening state at the moment; when the piston rod and the valve rod (51) of the emergency cut-off valve (5) move downwards until the valve (5) is closed, the hook of the second position indicator (7) is contacted with the valve (5) closing sensing piece, the indicator is triggered, and an electric signal is sent out to indicate that the valve (5) is in a closed state at the moment.
A fusible plug (8) is arranged on a vent pipeline between the valve control cylinder (1) and the electromagnetic valve (3), and the fusible plug (8) is configured to enable the emergency cut-off valve (5) to be in a closed state when a fire disaster occurs, so that the pipeline and equipment safety are protected. When a fire disaster occurs and the temperature reaches the melting point of the fusible plug (8), the fusible plug (8) is melted, the pipeline connected with the valve control cylinder (1) is empty and discharges pressure, and meanwhile, the pressure at the outlet of the electromagnetic valve (3) cannot be transmitted to the valve control cylinder (1), so that the emergency cut-off valve (5) is always in a closed state, a combustible medium in the pipeline is cut off, and the safety of personnel and loss are guaranteed.
The solenoid valve (3) is a two-position three-way solenoid valve (3), and fig. 5 is a cross-sectional view of the solenoid valve. The inlet end of the electromagnetic valve (3) is provided with a first channel (31) and a third channel (33), the first channel (31) is connected with the filter (9), the outlet end of the electromagnetic valve (3) is provided with a second channel (32), and the second channel (32) is connected with the air vent. The electromagnetic valve (3) comprises an energized state and a de-energized state, when the electromagnetic valve (3) is in the energized state, the first channel (31) and the second channel (33) are opened, and the third channel (33) is closed; when the solenoid valve (3) is in a power-off state, the first passage (31) is closed, and the second passage (32) and the third passage (33) are opened. When energized, medium flows from the first channel (31) to the second channel (32); when the power is off, the medium flows reversely from the second channel (32) to the third channel (33), and the medium is discharged to the air.
The inside of the cylinder support (4) is provided with a sealing fastener which enables the emergency cut-off valve (5) and the valve cover (52) to be in a sealing state, the sealing fastener can be a lock nut (41), the lock nut (41) is connected with the inside of the cylinder support (4) through threads, the nut moves towards the valve cover (52) through screwing the threads, so that the sealing element in the valve cover (52) is applied with pressure to deform, the sealing effect is achieved, and the lower end of the valve cover (52) is connected with the valve body (53). The nut can be applied with torque and the leakage condition can be tested according to the standard when leaving the factory, but the long-time operation of the valve can influence the sealing effect and even cause leakage. At the top of the nut, 6 holes can be provided in the six vertical directions, and when torque needs to be added to the nut but no proper tool is available, a metal rod can be inserted into any hole to rotate the nut clockwise to apply torque.
The electromagnetic valve (3) can be connected with a remote controller through a wire, the first position indicator (6) and the second position indicator (7) output electric signals to indicate the valve state, and an operator can know whether the valve is in a required state or not. The emergency cut-off valve can realize remote control without manual operation, so that the safety coefficient is greatly improved.
It should be noted that in the present patent application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. In the present patent application, if it is mentioned that an action is performed according to an element, it means that the action is performed at least according to the element, and two cases are included: the act is performed solely on the basis of the element and is performed on the basis of the element and other elements. Multiple, etc. expressions include 2, 2 times, 2, and 2 or more, 2 or more times, 2 or more.
All documents mentioned in the present application are considered to be included in the disclosure of the present application in their entirety, so that they may be subject to modification if necessary. Further, it will be understood that various changes or modifications may be made to the present application by those skilled in the art after reading the foregoing disclosure of the present application, and such equivalents are intended to fall within the scope of the present application as claimed.
Claims (10)
1. An apparatus for controlling an emergency shutdown valve, comprising: the valve control cylinder (1), the connecting backboard (2), the electromagnetic valve (3), the cylinder bracket (4) and the valve (5);
an adjusting spring (11), a spring pressing plate (12), a sealing diaphragm (13) and a piston rod (14) are arranged in the valve control cylinder (1), a first end of the adjusting spring (11) is connected with the spring pressing plate (12), the spring pressing plate (12) is connected with the valve control cylinder (1) through a bolt, a second end of the adjusting spring (11) is connected with the upper surface of the sealing diaphragm (13), and the lower surface of the sealing diaphragm (13) is connected with the piston rod (14);
the valve control cylinder (1) is arranged on the connecting backboard (2), the valve control cylinder (1) is provided with a vent, the vent is connected with the electromagnetic valve (3) through a pipeline, and a valve rod (51) of the valve (5) is fixedly connected with the piston rod;
-the cylinder support (4) is configured to support the valve control cylinder (1), the cylinder support (4) being located between the valve control cylinder (1) and the valve (5);
the electromagnetic valve (3) is configured to vent air into the valve control cylinder (1) through the air vent pipe when energized, so that the sealing diaphragm (13) compresses the regulating spring (11).
2. The device for controlling an emergency shut-off valve according to claim 1, further comprising a first position indicator (6) and a second position indicator (7);
the first position indicator (6) and the second position indicator (7) are arranged on the connecting backboard (2), and a valve (5) opening sensing piece and a valve (5) closing sensing piece are arranged on the piston rod;
the first position indicator (6) and the second position indicator (7) are configured to emit an electrical signal to indicate the state of the valve (5) when in contact with the valve (5) open sensing piece and the valve (5) close sensing piece, respectively.
3. The device for controlling an emergency shut-off valve according to claim 1, further comprising a fusible plug (8);
the fusible plug (8) is positioned on a vent line between the electromagnetic valve (3) and the valve control cylinder (1), and the fusible plug (8) is configured to put the emergency shut-off valve (5) in a closed state when a fire occurs.
4. Device for controlling an emergency shut-off valve according to claim 1, characterized in that the solenoid valve (3) is a two-position three-way solenoid valve (3).
5. Device for controlling an emergency shut-off valve according to claim 1, characterized in that it further comprises a filter (9), said filter (9) being connected to said solenoid valve (3) by means of a filtering line.
6. Device for controlling an emergency shut-off valve according to claim 5, characterized in that the inlet end of the solenoid valve (3) is provided with a first channel (31) and a third channel (33), the first channel (31) being connected to the filter (9), the outlet end of the solenoid valve (3) is provided with a second channel (32), the second channel (32) being connected to the vent.
7. The device for controlling an emergency shut-off valve according to claim 6, characterized in that said solenoid valve (3) comprises an energized state and a de-energized state;
when the electromagnetic valve (3) is in an energized state, the first channel (31) and the second channel (32) are opened, and the third channel (33) is closed;
when the electromagnetic valve (3) is in a power-off state, the first channel (31) is closed, and the second channel (32) and the third channel (33) are opened.
8. The device for controlling an emergency shut-off valve according to claim 6, characterized in that a sealing fastener is mounted in the cylinder holder (4), which sealing fastener is configured to put the emergency shut-off valve (5) and the valve control cylinder (1) in a sealed state.
9. Device for controlling an emergency shut-off valve according to claim 1, characterized in that the solenoid valve (3) is connected to a remote control by means of a lead.
10. Device for controlling an emergency shut-off valve according to claim 1, characterized in that the cylinder support (4) is U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320098281.3U CN219345658U (en) | 2023-02-01 | 2023-02-01 | Device for controlling emergency shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320098281.3U CN219345658U (en) | 2023-02-01 | 2023-02-01 | Device for controlling emergency shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219345658U true CN219345658U (en) | 2023-07-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320098281.3U Active CN219345658U (en) | 2023-02-01 | 2023-02-01 | Device for controlling emergency shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219345658U (en) |
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2023
- 2023-02-01 CN CN202320098281.3U patent/CN219345658U/en active Active
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