CN112096934B - Safety monitoring method for emergency cut-off valve state of tank truck - Google Patents
Safety monitoring method for emergency cut-off valve state of tank truck Download PDFInfo
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- CN112096934B CN112096934B CN202010747741.1A CN202010747741A CN112096934B CN 112096934 B CN112096934 B CN 112096934B CN 202010747741 A CN202010747741 A CN 202010747741A CN 112096934 B CN112096934 B CN 112096934B
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- valve
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- emergency cut
- rotating shaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0025—Electrical or magnetic means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention discloses a safety monitoring method for the emergency cut-off valve state of a tank car, which relates to the technical field of tank car safety and comprises the following steps: when the emergency shutdown valve is in a closed state: when the micro switch is in an off state, the micro control module sends a normal signal of a cut-off valve to a start controller of the tank car; after the start controller receives the signal, the start controller allows the tank car to be ignited and started; when the emergency shutdown valve is in an open state: the stay cable rotating shaft drives the micro switch to be closed, and after the micro switch is closed, the micro control module sends an abnormal signal of the cut-off valve to a start controller of the tank car; after the start controller receives the signal, the start controller prohibits the tank car from being ignited and started; the tank truck emergency cut-off valve state monitoring system can effectively realize the safety monitoring of the tank truck emergency cut-off valve state, the state of the emergency cut-off valve is combined with a start controller for controlling the tank truck to ignite, and the start controller allows the tank truck to ignite and start in the closed state of the emergency cut-off valve.
Description
Technical Field
The invention relates to the technical field of tank truck safety, in particular to a safety monitoring method for the emergency cut-off valve state of a tank truck.
Background
The emergency cut-off valve is also called a safety cut-off valve, which is suitable for coal gas, natural gas and liquefied petroleum gas, and can be quickly closed or opened when an emergency occurs, so that accidents can be avoided. Because of the great risk involved in transporting the tanker, emergency shut-off valves are often provided in the tanker, usually at the bottom of the tanker. In real life, the bottom emergency cut-off valve is often in an open state due to misoperation in the transportation process of the tank truck, and finally accidents such as dangerous goods leakage, spraying, ignition and the like are caused. In order to prevent accidents, a device which can monitor the state of the emergency cut-off valve and control the closing of the emergency cut-off valve is urgently needed.
For example, chinese patent CN209416407U discloses a monitoring device for an emergency cut-off valve of a tank car, which comprises a signal conditioning circuit, a pressure sensor, a car speed sensor, an electromagnetic valve, a warning module and a data processing module, wherein the pressure sensor processes the inlet pressure data of the emergency cut-off valve through the signal conditioning circuit module and transmits the processed data to the data processing module for processing, and the data processing module can control the warning module to generate a corresponding warning prompt according to the processing result; the vehicle speed sensor transmits vehicle speed data to the data processing module for processing after the vehicle speed data is processed by the signal conditioning circuit module, and the data processing module controls the emergency cut-off valve to be closed through the control solenoid valve according to a processing result; the utility model discloses a monitoring device of patent adopts the mode of pure electronic circuit formula to monitor the quick action emergency valve, and the security is not high enough to the condition that the control is not in place appears easily.
Disclosure of Invention
First, technical problem to be solved
The invention aims to provide a safety monitoring method for the state of an emergency cut-off valve of a tank car, aiming at overcoming the defects in the prior art and solving the problem that the existing emergency cut-off valve of the tank car is not high in monitoring safety.
Second, technical scheme
In order to solve the technical problem, the invention provides a safety monitoring method for the emergency cut-off valve state of a tank truck, which is implemented by the following devices and comprises the following steps: the emergency cut-off valve, the valve guy cable, the guy cable rotating shaft and the microswitch; the emergency cut-off valve is used for controlling the inlet and outlet of oil, the valve guy cable is matched and clamped with a valve of the emergency cut-off valve, the valve guy cable can also be used for driving a guy cable rotating shaft to rotate, and the guy cable rotating shaft can control the opening and closing of the microswitch; the safety monitoring method for the emergency cut-off valve state of the tank truck comprises the following steps:
when the emergency shutdown valve is in a closed state:
the valve of the emergency cut-off valve is located at the position A, at the moment, the valve cable is in a relaxed state, the cable rotating shaft does not rotate, or the valve cable is in a tightened state, and the valve cable drives the cable rotating shaft to rotate by an angle smaller than a preset angle;
at the moment, the micro switch is in an off state, and the micro control module sends a normal signal of a cut-off valve to a start controller of the tank car;
after the start controller receives the signal, the start controller allows the tank car to be ignited and started;
when the emergency shutdown valve is in an open state:
the valve of the emergency cut-off valve is positioned at a position outside the position A, and at the moment, the valve stay cable is in a tight state and drives the stay cable rotating shaft to rotate by a preset angle;
the stay cable rotating shaft drives the micro switch to be closed, and after the micro switch is closed, the micro control module sends an abnormal signal of the cut-off valve to a start controller of the tank car;
after the start controller receives the signal, the start controller prohibits the tank car from being ignited and started.
Wherein, be equipped with first cable fixing device on the valve of quick action emergency valve, valve cable one end is connected fixedly with first cable fixing device.
Wherein, be equipped with second cable fixing device on the cable pivot, the valve cable other end is connected fixedly with second cable fixing device.
Wherein, a rotating shaft cam is arranged on the inhaul cable rotating shaft and can rotate coaxially with the inhaul cable rotating shaft.
Wherein, when the rotating shaft cam rotates a preset angle, the microswitch can be closed.
Wherein, after the start controller receives the trip valve abnormal signal, the start controller still can control the unusual pilot lamp of trip valve and light.
Wherein, after the start controller receives the normal signal of trip valve, the start controller still can control the normal pilot lamp of trip valve and light.
When the emergency cut-off valves are provided with two or more than two emergency cut-off valves, each emergency cut-off valve can be provided with a group of monitoring devices for monitoring.
Wherein, the abnormal indicator light of trip valve is the red light.
Wherein, the normal pilot lamp of trip valve is green.
Third, beneficial effect
Compared with the prior art, the safety monitoring method for the emergency cut-off valve state of the tank car can effectively realize the safety monitoring of the emergency cut-off valve state of the tank car, and particularly, the state of the emergency cut-off valve is linked with a start controller for controlling the tank car to be ignited, so that the start controller allows the tank car to be ignited and started only in the closed state of the emergency cut-off valve;
meanwhile, the state of the emergency cut-off valve is monitored through the mechanical structure design, and the monitoring safety can be effectively improved.
Drawings
FIG. 1 is a schematic view of the slam shut valve of the present invention 1;
FIG. 2 is a schematic view of the slam shut valve of the present invention 2;
FIG. 3 is a schematic view of a ring card slot of the present invention;
FIG. 4 is a schematic view of a cable spool according to the present invention;
FIG. 5 is a flow chart of the control scheme of the present invention;
in the figure: 1 is an emergency cut-off valve; 2 is a valve cable; 3 is a guy cable rotating shaft; 4 is a microswitch; 5 is a ring-shaped clamping groove; 6 is a torsion spring resetting device; 7 is a first cable fixing device; and 8 is a rotating shaft cam.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1:
the safety monitoring method for the emergency cut-off valve state of the tank truck, which is disclosed by the embodiment of the invention, is implemented by the following devices, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, and comprises the following steps: the emergency cut-off valve comprises an emergency cut-off valve 1, a valve cable 2, a cable rotating shaft 3 and a microswitch 4; the emergency cut-off valve 1 is used for controlling the inlet and outlet of oil, the valve cable 2 is matched and clamped with a valve of the emergency cut-off valve 1, the valve cable 2 can also be used for driving a cable rotating shaft 3 to rotate, and the cable rotating shaft 3 can control the opening and closing of a microswitch 4, specifically, according to the emergency cut-off valves 1 of different models, the valve of the emergency cut-off valve 1 synchronously rotates or linearly moves along with the opening and closing of the emergency cut-off valve 1, and meanwhile, the valve cable 2 is driven to move; moreover, a rotating shaft cam 8 is arranged on the inhaul cable rotating shaft 3, and the rotating shaft cam 8 can rotate coaxially with the inhaul cable rotating shaft 3; through the motion of valve cable 2, can drive cable pivot 3 and set up the synchronous revolution of pivot cam 8 on cable pivot 3, when pivot cam 8 rotatory preset angle, can promote micro-gap switch 4 to make micro-gap switch 4 closed.
The safety monitoring method for the emergency cut-off valve state of the tank truck comprises the following steps:
when the emergency shutdown valve 1 is in the closed state:
the valve of the emergency cut-off valve 1 is located at a position a, namely the valve position of the emergency cut-off valve 1 shown in fig. 2, at this time, the valve cable 2 is in a relaxed state, the cable rotating shaft 3 is not rotated, or the valve cable 2 is in a tightened state, the angle of the valve cable 2 driving the cable rotating shaft 3 to rotate is smaller than a preset angle, namely when the emergency cut-off valve 1 is in a closed state, the angle of the valve cable 2 driving the cable rotating shaft 3 to rotate is not enough to close the micro switch 4 or not touch the micro switch, in the embodiment, the preset angle is set to 18 °, and when the angle of rotation is smaller than 18 °, the micro switch 4 is not closed;
at the moment, when the emergency cut-off valve 1 is in a closed state, the microswitch 4 is in an open state, and the micro control module sends a normal cut-off valve signal to a start controller of the tank car;
after the start controller receives the signal, the start controller allows the tank car to be ignited and started, namely, the tank car can be ignited and started normally only when the emergency cut-off valve 1 is in a closed state;
when the emergency shutdown valve 1 is in the open state:
the valve of the emergency cut-off valve 1 is located at a position outside the position A, namely the opening state of the emergency cut-off valve 1 may be a completely opened state or a half opened state, at this time, the valve cable 2 is in a tightened state and drives the cable rotating shaft 3 to rotate by a preset angle, namely, when the rotating angle of the cable rotating shaft 3 is greater than or equal to 18 degrees, the rotating shaft cam 8 can push the microswitch 4 to be closed;
then after the microswitch 4 is closed, the micro control module sends an abnormal signal of a cut-off valve to a start controller of the tank car;
after the start controller receives the signal, the start controller prohibits the tank car from being ignited and started, namely, the tank car cannot be ignited and started normally only when the emergency cut-off valve 1 is in a fully opened or half-opened state, so that the safety monitoring of the emergency cut-off valve state of the tank car is realized, the emergency cut-off valve which possibly appears in the transportation process of the tank car is prevented from being in an opened state due to misoperation, and accidents such as leakage, spraying, ignition and the like of dangerous goods are prevented.
In this embodiment, fig. 1 to fig. 2 are diagrams of states of the quick action emergency valve from full opening to closing, and there are differences in the arrangement of the quick action emergency valve, and fig. 1 to fig. 2 are only schematic diagrams of the position change relationship.
Example 2:
in this embodiment, when the emergency cut-off valves 1 are provided with two or more than two, a set of monitoring devices may be provided for each emergency cut-off valve 1 to monitor, as compared to embodiment 1, so as to ensure the safe closing of all the emergency cut-off valves 1 in the tank car running state.
Example 3:
compared with the embodiment 1, in the embodiment, a first cable fixing device 7 is arranged on the valve of the emergency cut-off valve 1, and one end of the valve cable 2 is fixedly connected with the first cable fixing device 7; the first cable fixing device 7 may be fixed in a fixing manner shown in fig. 3, and may also be fixed in a winding manner by using the annular clamping groove 5, that is, the valve cable 2 may be wound and rotated around the annular clamping groove 5.
Be equipped with second cable fixing device on cable pivot 3, the 2 other ends of valve cable are connected fixedly with second cable fixing device to it is equipped with torsional spring resetting means 6 still to overlap on cable pivot 3, resets cable pivot 3 to initial position through torsional spring resetting means 6 promptly.
Example 4:
after the start controller receives the abnormal signal of the cut-off valve, the start controller can also control the abnormal indicator light of the cut-off valve to light; the abnormal indicator light of the stop valve is a red light.
After the start controller receives the normal signal of the cut-off valve, the start controller can also control the normal indicator light of the cut-off valve to light; the normal indicator light of the stop valve is a green light.
Through the design, the emergency cut-off valve state can be more intuitively displayed to a driver or other operators, and the safety is further improved.
The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (10)
1. A safety monitoring method for the emergency cut-off valve state of a tank truck is characterized by comprising the following steps: the safety monitoring method for the emergency cut-off valve state of the tank truck is implemented by the following devices, and comprises the following steps: the emergency stop valve (1), the valve guy cable (2), the guy cable rotating shaft (3) and the microswitch (4); the emergency cut-off valve (1) is used for controlling oil to enter and exit, the valve cable (2) is clamped with a valve of the emergency cut-off valve (1) in a matched mode, the valve cable (2) can also be used for driving the cable rotating shaft (3) to rotate, and the cable rotating shaft (3) can control the micro switch (4) to be switched on and off; the safety monitoring method for the emergency cut-off valve state of the tank truck comprises the following steps:
when the quick action emergency valve (1) is in a closed state:
the valve of the emergency cut-off valve (1) is located at a position A, the valve cable (2) is in a relaxed state at the moment, the cable rotating shaft (3) does not rotate, or the valve cable (2) is in a tightened state, and the valve cable (2) drives the cable rotating shaft (3) to rotate by an angle smaller than a preset angle;
at the moment, the microswitch (4) is in a disconnected state, and the micro control module sends a normal signal of a cut-off valve to a start controller of the tank car;
after the start controller receives the signal, the start controller allows the tank car to be ignited and started;
when the quick action emergency valve (1) is in an open state:
the valve of the emergency cut-off valve (1) is positioned at a position outside the position A, and at the moment, the valve stay cable (2) is in a tightening state and drives the stay cable rotating shaft (3) to rotate by a preset angle;
the stay cable rotating shaft (3) drives the microswitch (4) to be closed, and after the microswitch (4) is closed, the inching control module sends a cut-off valve abnormal signal to a start controller of the tank car;
after the start controller receives the signal, the start controller prohibits the tank car from being ignited and started.
2. The safety monitoring method for the state of the emergency cut-off valve of the tank truck as claimed in claim 1, wherein: be equipped with first cable fixing device (7) on the valve of emergency cut-off valve (1), valve cable (2) one end with first cable fixing device (7) are connected fixedly.
3. A safety monitoring method for the status of an emergency shut-off valve of a tank truck according to claim 2, characterized in that: and a second cable fixing device is arranged on the cable rotating shaft (3), and the other end of the valve cable (2) is fixedly connected with the second cable fixing device.
4. The safety monitoring method for the state of the emergency cut-off valve of the tank truck as claimed in claim 1, wherein: and a rotating shaft cam (8) is arranged on the inhaul cable rotating shaft (3), and the rotating shaft cam (8) can rotate coaxially with the inhaul cable rotating shaft (3).
5. The safety monitoring method for the state of the emergency cut-off valve of the tank truck as claimed in claim 4, wherein: when the rotating shaft cam (8) rotates for a preset angle, the microswitch (4) can be closed.
6. The safety monitoring method for the state of the emergency cut-off valve of the tank truck as claimed in claim 1, wherein: after the starting controller receives the abnormal signal of the stop valve, the starting controller can also control the abnormal indicator light of the stop valve to light.
7. The safety monitoring method for the state of the emergency cut-off valve of the tank truck as claimed in claim 1, wherein: after the start controller receives the normal signal of the stop valve, the start controller can also control the normal indicator light of the stop valve to light.
8. The safety monitoring method for the state of the emergency cut-off valve of the tank truck as claimed in claim 1, wherein: when the emergency cut-off valves (1) are provided with two or more than two, each emergency cut-off valve (1) can be provided with a group of monitoring devices for monitoring.
9. The safety monitoring method for the state of the emergency cut-off valve of the tank truck as claimed in claim 6, wherein: the abnormal stop valve indicator lamp is a red lamp.
10. The safety monitoring method for the state of the emergency cut-off valve of the tank truck as claimed in claim 7, wherein: the normal stop valve indicator light is a green light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010747741.1A CN112096934B (en) | 2020-07-28 | 2020-07-28 | Safety monitoring method for emergency cut-off valve state of tank truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010747741.1A CN112096934B (en) | 2020-07-28 | 2020-07-28 | Safety monitoring method for emergency cut-off valve state of tank truck |
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| CN112096934A CN112096934A (en) | 2020-12-18 |
| CN112096934B true CN112096934B (en) | 2022-03-29 |
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| CN202010747741.1A Active CN112096934B (en) | 2020-07-28 | 2020-07-28 | Safety monitoring method for emergency cut-off valve state of tank truck |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63246459A (en) * | 1987-03-31 | 1988-10-13 | Agency Of Ind Science & Technol | Supervisory control device for automobile using metal hydride as fuel |
| JPH07224967A (en) * | 1994-02-16 | 1995-08-22 | Kyokuto Kaihatsu Kogyo Co Ltd | Control device for bottom valve in tank truck |
| JP2015230071A (en) * | 2014-06-05 | 2015-12-21 | 川崎エンジニアリング株式会社 | Hydrogen trailer |
| CN207128880U (en) * | 2017-09-12 | 2018-03-23 | 山东明珠专用汽车制造有限公司 | Oil truck linkage control device |
| CN110901506A (en) * | 2019-12-02 | 2020-03-24 | 浙江金象科技有限公司 | Multifunctional central control system and multifunctional central control method |
| CN210461878U (en) * | 2019-08-21 | 2020-05-05 | 青岛灵创仪器有限公司 | Pneumatic valve controller |
| CN111140683A (en) * | 2019-12-26 | 2020-05-12 | 荆门宏图特种飞行器制造有限公司 | Tank car and emergency cut-off system thereof |
| CN111361493A (en) * | 2020-03-27 | 2020-07-03 | 荆门宏图特种飞行器制造有限公司 | Emergency cut-off pneumatic control system for tank truck |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208519270U (en) * | 2018-07-04 | 2019-02-19 | 山西潞安煤基清洁能源有限责任公司 | A kind of tank car emergency shutoff device |
-
2020
- 2020-07-28 CN CN202010747741.1A patent/CN112096934B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63246459A (en) * | 1987-03-31 | 1988-10-13 | Agency Of Ind Science & Technol | Supervisory control device for automobile using metal hydride as fuel |
| JPH07224967A (en) * | 1994-02-16 | 1995-08-22 | Kyokuto Kaihatsu Kogyo Co Ltd | Control device for bottom valve in tank truck |
| JP2015230071A (en) * | 2014-06-05 | 2015-12-21 | 川崎エンジニアリング株式会社 | Hydrogen trailer |
| CN207128880U (en) * | 2017-09-12 | 2018-03-23 | 山东明珠专用汽车制造有限公司 | Oil truck linkage control device |
| CN210461878U (en) * | 2019-08-21 | 2020-05-05 | 青岛灵创仪器有限公司 | Pneumatic valve controller |
| CN110901506A (en) * | 2019-12-02 | 2020-03-24 | 浙江金象科技有限公司 | Multifunctional central control system and multifunctional central control method |
| CN111140683A (en) * | 2019-12-26 | 2020-05-12 | 荆门宏图特种飞行器制造有限公司 | Tank car and emergency cut-off system thereof |
| CN111361493A (en) * | 2020-03-27 | 2020-07-03 | 荆门宏图特种飞行器制造有限公司 | Emergency cut-off pneumatic control system for tank truck |
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| CN112096934A (en) | 2020-12-18 |
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