CN116834640A - Emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank truck - Google Patents
Emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank truck Download PDFInfo
- Publication number
- CN116834640A CN116834640A CN202310640908.8A CN202310640908A CN116834640A CN 116834640 A CN116834640 A CN 116834640A CN 202310640908 A CN202310640908 A CN 202310640908A CN 116834640 A CN116834640 A CN 116834640A
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- loading
- unloading
- valve
- gas
- emergency cut
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- 239000007788 liquid Substances 0.000 title claims description 14
- 230000003993 interaction Effects 0.000 claims description 2
- 210000003437 trachea Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 9
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/22—Tank vehicles
- B60P3/224—Tank vehicles comprising auxiliary devices, e.g. for unloading or level indicating
- B60P3/2245—Adaptations for loading or unloading
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention belongs to the technical field of automatic control of tank trucks, and particularly relates to an emergency cut-off interlocking device for loading and unloading dangerous goods gas/tank trucks. The electromagnetic valve is electrically connected with the first electrostatic socket, the first explosion-proof connector is fixedly arranged on the first electrostatic socket and is electrically connected with the second explosion-proof connector on the second electrostatic socket in the seven-interlocking loading and unloading vehicle system through the second core wire. According to the invention, by additionally arranging the emergency cut-off valve electric control system, various safety risks in the loading and unloading process of the tank truck are converted from personnel on-site operation to unmanned electric control automatic operation, and the purpose of active safety is achieved.
Description
Technical Field
The invention belongs to the technical field of automatic control of tank trucks, and particularly relates to an emergency cut-off interlocking device for loading and unloading dangerous goods gas/tank trucks.
Background
According to the current national and local requirements, the loading and unloading vehicle of the dangerous goods tank truck must be provided with seven interlocking loading and unloading vehicle systems (human static electricity, grounding, oil spilling, crane pipe homing, key interlocking, gas phase detection and combustible gas), so that the loading and unloading process is relatively safe, and a driver drives the tank truck to a specified place in the actual loading and unloading process, tightens a hand brake and parks the tank truck as required. The operator connects the gas/liquid two-phase connecting pipe of the universal loading and unloading arm at the gas/liquid storage tank with the tank body of the tank car, opens the manual ball valve, and starts the compressor to carry out loading and unloading operation of the gas/liquid tank car.
However, in the actual operation process of the site, operators may not be in place due to connection of the crane pipe interface and misoperation, or the tank truck moves due to misoperation in the loading and unloading process of the driver, and other accidents such as crane pipe fracture and oil/gas overflow can be caused, as shown in fig. 1, the seven-interlocking loading and unloading system can be started to timely cut off one end of the gas/liquid loading and unloading crane pipe connected with the gas/liquid storage tank through the electromagnetic valve control valve, but the emergency cut-off valve at one end of the tank body of the tank truck cannot be timely controlled, and the oil/gas backflow in the tank body of the tank truck can overflow through the cracking part of the crane pipe, so that the accidents can be caused. When the leakage occurs, people must go to the site to operate and close the emergency cut-off valve at one end of the tank body of the tank truck, the danger coefficient is high, the risk is high, and once the operation is wrong, property loss or casualties can be caused.
Disclosure of Invention
Aiming at the technical problems, the invention provides an emergency cut-off interlocking device for loading and unloading dangerous goods gas/tank truck, which can automatically close an emergency cut-off valve of the tank body of the tank truck under the overflow condition. The technical scheme adopted by the invention is as follows:
the emergency cut-off interlocking device for loading and unloading dangerous goods gas/tank truck is characterized in that a locking nut tee joint is fixedly installed on a gas pipe led out from a gas storage cylinder of the tank truck, one end outlet of the nut tee joint is connected with a parking valve through a gas circuit, the other end outlet of the nut tee joint is connected with an electromagnetic valve through a gas circuit, a control gas circuit of the electromagnetic valve is connected with an actuator, the actuator is fixedly connected with a control rod of the emergency cut-off valve, and the electromagnetic valve is electrically connected with a seven-interlocking loading and unloading truck system to realize data interaction.
Preferably, the electromagnetic valve is electrically connected with the first electrostatic socket, the first explosion-proof connector is fixedly arranged on the first electrostatic socket and is electrically connected with the second explosion-proof connector on the second electrostatic socket in the seven-interlocking loading and unloading vehicle system through the second core wire.
Preferably, a shuttle valve is fixedly arranged on the air path between the electromagnetic valve and the actuator.
Preferably, the shuttle valve is connected with the parking valve through an air path.
Compared with the prior art, the invention has the technical effects and advantages that:
the existing seven-interlocking loading and unloading vehicle system is utilized to lead out a control signal line, an electromagnetic valve is additionally arranged on the tank truck to control an actuator to act under an emergency condition, and an emergency cut-off valve at one end of the tank body of the tank truck is automatically closed through the action of the actuator. The emergency cut-off valve electric control system is additionally arranged, so that various safety risks in the material loading and unloading process of the tank truck are converted from personnel on-site operation to unmanned electric control automatic operation, and the purpose of active safety is achieved.
Drawings
FIG. 1 is a schematic diagram of a prior art tank car control system;
FIG. 2 is a schematic diagram of a modified emergency shutdown interlock according to an embodiment of the present invention;
fig. 3 is a schematic diagram of the connection of the actuator and the tank of fig. 2.
In the figure: 1. the automatic control device comprises an air storage tank, 2, a manual ball valve, 3, a nut tee joint, 4, an electromagnetic valve, 5, a parking valve, 6, a shuttle valve, 7, an actuator, 8 and a seven-interlocking loading and unloading vehicle system, 9, an electrostatic socket I, 10, an explosion-proof connector I, 11 and an emergency cut-off valve.
Examples
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
As shown in fig. 2-3, the emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank truck is arranged on a gas pipe led out from a gas storage cylinder 1 on the basis of the gas path controlled by the original parking valve of the tank truck, one end outlet of a nut tee joint 3 is connected with a parking valve 5 to control the gas path of the parking valve 5, the other end outlet is connected with an electromagnetic valve 4 to control the gas path of the electromagnetic valve 4; the control air path of the electromagnetic valve 4 is connected with an actuator 7 for controlling an emergency cut-off valve 11 of the tank body of the tank car. A shuttle valve 6 is arranged between the electromagnetic valve 4 and the actuator 7, and the shuttle valve 6 is connected with the parking valve 5 through an air path to play a role of a one-way valve so as to prevent gas from flowing backwards; the actuator 7 is connected with a control rod of the emergency cut-off valve 11, the actuator 7 is of an air cylinder structure controlled by air pressure, when the air pressure exists, a piston rod of the air cylinder stretches out to take the effect of moving the control rod of the valve by hands; when the actuator 7 is pressed, a control rod of the emergency cut-off valve 11 is jacked up, so that the emergency cut-off valve 11 of the tank body of the tank truck is automatically closed. The electromagnetic valve 4 is electrically connected with one end of the first electrostatic socket 9, the other end of the first electrostatic socket 9 is grounded, the first explosion-proof connector 10 is fixedly arranged on the first electrostatic socket 9, the first explosion-proof connector 10 is electrically connected with the second explosion-proof connector on the second electrostatic socket in the seven-interlocking loading and unloading vehicle system 8 through the two core wires, the function of transmitting signals is achieved, and when an emergency overflow condition occurs, the seven-interlocking loading and unloading vehicle system 8 transmits control signals to the electromagnetic valve 4 through the second electrostatic socket and the first electrostatic socket 9 while operating.
The invention relates to an emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank trucks, which has the following working principle:
when the dangerous goods tank truck is loaded and unloaded, a driver parks the tank truck to a specified position and then tightens the hand brake. An operator connects a universal loading arm gas/liquid two-phase connecting pipe at one end of a gas/liquid storage tank with a tank body of the tank truck, opens a manual ball valve, then electrically connects a first electrostatic socket 9 of the tank truck with a second electrostatic socket of a seven-interlocking loading and unloading truck system 8 through a first explosion-proof connector 10, a second explosion-proof connector and a second core wire, and starts a loading and unloading truck compressor to load and unload after connection is completed; if gas/liquid overflows in the loading and unloading process or other environmental factors reach the triggering condition of the seven-interlocking loading and unloading system 8, the loading and unloading valve of the seven-interlocking loading and unloading system 8 starts to be automatically closed, meanwhile, a signal instruction for closing the emergency cut-off valve of the tank body of the tank car is sent out, the signal instruction is transmitted to the electromagnetic valve 4 through the first electrostatic socket 9 through the circuit transmission, the electromagnetic valve 4 is opened to realize short-time ventilation after receiving the signal, the gas is transmitted through the shuttle valve 6 through the gas circuit to pressurize the actuator 7 to enable the actuator 7 to act, and the actuator 7 jacks up the control rod of the emergency cut-off valve 11 to enable the emergency cut-off valve 11 of the tank body of the tank car to be closed, so that the emergency cut-off valve 11 is automatically controlled to be closed.
In the embodiment of the present invention, the detailed structure and the control method of the seven-interlock system, the installation positions and the control method of the actuator 7, the seven-interlock loading and unloading vehicle system 8 and the emergency cut-off valve 11 are all of the prior art, and are not described herein.
In the embodiments of the present invention, other technical features not described in detail are existing technology or conventional technical means, and are not described in detail herein.
Claims (4)
1. Dangerous goods gas/tank truck loading and unloading emergency cut-off interlocking device, characterized in that, fixedly mounting lock female tee bend (3) on the trachea that tank car was drawn forth from gas receiver (1), nut tee bend (3) one end export is through gas circuit connection parking valve (5), nut tee bend (3) other end export is through gas circuit connection solenoid valve (4), the control gas circuit and the executor (7) of solenoid valve (4) are connected, the control lever fixed connection of executor (7) and emergency cut-off valve (11), solenoid valve (4) and seven interlocking loading and unloading car system (8) electric connection realize data interaction.
2. The emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank truck according to claim 1, wherein the electromagnetic valve (4) is electrically connected with the first electrostatic socket (9), the first explosion-proof connector (10) is fixedly arranged on the first electrostatic socket (9), and the first explosion-proof connector (10) is electrically connected with the second explosion-proof connector on the second electrostatic socket in the seven-interlocking loading and unloading truck system (8) through a second core wire.
3. The emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank truck according to claim 1, wherein a shuttle valve (6) is fixedly arranged on a gas path between the electromagnetic valve (4) and the actuator (7).
4. A dangerous goods gas/tank truck loading and unloading emergency cut-off interlocking device according to claim 3, characterized in that the shuttle valve (6) is connected with the parking valve (5) through a gas path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310640908.8A CN116834640A (en) | 2023-06-01 | 2023-06-01 | Emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310640908.8A CN116834640A (en) | 2023-06-01 | 2023-06-01 | Emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116834640A true CN116834640A (en) | 2023-10-03 |
Family
ID=88164304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310640908.8A Pending CN116834640A (en) | 2023-06-01 | 2023-06-01 | Emergency cut-off interlocking device for loading and unloading dangerous goods gas/liquid tank truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116834640A (en) |
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2023
- 2023-06-01 CN CN202310640908.8A patent/CN116834640A/en active Pending
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