CN115259066A - Emergency cut-off interlocking device for dangerous goods liquid tank truck and control method - Google Patents
Emergency cut-off interlocking device for dangerous goods liquid tank truck and control method Download PDFInfo
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- CN115259066A CN115259066A CN202211001441.4A CN202211001441A CN115259066A CN 115259066 A CN115259066 A CN 115259066A CN 202211001441 A CN202211001441 A CN 202211001441A CN 115259066 A CN115259066 A CN 115259066A
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- loading
- valve
- unloading
- main controller
- emergency cut
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- B67D7/00—Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes
- B67D7/06—Details or accessories
- B67D7/42—Filling nozzles
- B67D7/44—Filling nozzles automatically closing
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- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The invention relates to an emergency cut-off interlocking device and a control method for a dangerous goods liquid tank truck, wherein the device comprises a loading arm, a sensor, a gas phase connecting pipe, a liquid phase connecting pipe, an emergency cut-off valve, an air cylinder, an electromagnetic valve, a pressure switch, a hand brake and a main controller; the sensor is arranged at the end part of the oil filling riser and the loading and unloading port of the vehicle tank body and is in electric signal connection with the main controller; the liquid phase connecting pipe is provided with an emergency cut-off valve and a loading and unloading pump, the cylinder is arranged on the emergency cut-off valve, and the loading and unloading pump is connected with a power supply through a loading and unloading pump switch; the solenoid valve sets up on the intake manifold of cylinder, and the solenoid valve is connected with pressure switch electricity, and pressure switch is connected with the hand brake, and pressure switch and solenoid valve all are connected with the main control unit signal of telecommunication. This technical scheme adopts and just can normally load and unload the goods after the tight coupling at crane tip installation sensor, when artificial misoperation or interface combination do not in place appear, the sensor does not have the detection signal transmission, and the quick action emergency valve is closed, ensures loading and unloading car safety.
Description
Technical Field
The invention belongs to the technical field of chemical transportation safety, and particularly relates to an emergency cut-off interlocking device and a control method for a dangerous goods liquid tank truck.
Background
According to the current national or local regulation requirements, the loading site of the dangerous chemical vehicle must be provided with seven interlocks (human body static electricity, grounding, oil spilling, oil filling riser homing, key interlock, gas phase detection and combustible gas), and from the aspect of analysis, the current dangerous chemical loading process should be relatively safe.
In the actual loading and unloading process, a driver drives the vehicle to a specified loading place, pulls a hand brake tightly and parks the vehicle according to a specified requirement, an operator connects a gas-liquid two-phase connecting pipe of the universal loading arm with a tank body feeding port of the vehicle, opens a manual ball valve and starts a compressor to carry out loading operation.
However, in the actual operation process of the site, accidents such as leakage and breakage of the loading and unloading arm can be caused by misoperation of operators due to improper connection or vehicle movement caused by misoperation in the process of loading and unloading vehicles by drivers, leakage explosion accidents are caused seriously, and the situations such as property loss and casualties are caused.
Disclosure of Invention
The invention aims to provide an emergency cut-off interlocking device and a control method for a dangerous cargo liquid tank truck, which aim to solve the problem that accidents such as leakage and breakage of an oil filling riser can be caused by misoperation due to improper connection of operators in the actual loading and unloading process or vehicle movement caused by misoperation in the loading and unloading process of a driver.
In order to realize the purpose, the invention is realized by the following technical scheme:
an emergency cut-off interlocking device of a dangerous goods liquid tank truck comprises a crane pipe, a sensor, a gas phase connecting pipe, a liquid phase connecting pipe, an emergency cut-off valve, a cylinder, an electromagnetic valve, a pressure switch, a hand brake and a main controller;
the sensor is arranged at the end part of the oil filling riser and the loading and unloading port of the vehicle tank body and used for sensing whether the connection between the oil filling riser and the loading and unloading port of the vehicle tank body meets the requirement or not, and the sensor is in electric signal connection with the main controller;
one end of the gas phase connecting pipe and one end of the liquid phase connecting pipe are both connected with the oil filling riser, the other end of the gas phase connecting pipe is connected with the upper part of the storage tank, and the other end of the liquid phase connecting pipe is connected with the lower part of the storage tank;
the liquid phase connecting pipe is provided with an emergency cut-off valve and a loading and unloading pump, the air cylinder is arranged on the emergency cut-off valve and is a power source for closing or opening the emergency cut-off valve, and the loading and unloading pump is connected with a power supply through a loading and unloading pump switch;
the electromagnetic valve is arranged on an air inlet pipeline of the air cylinder, the electromagnetic valve is electrically connected with the pressure switch, the pressure switch is connected with the hand brake, and the pressure switch and the electromagnetic valve are both in electric signal connection with the main controller.
Furthermore, the storage tank is connected with the liquid phase connecting pipe through a T-shaped pipe, and the emergency cut-off valve is arranged on the T-shaped pipe.
Further, the emergency cut-off valve is in an open state when the cylinder is under normal pressure, or the emergency cut-off valve is in a closed state when the cylinder is under normal pressure.
Furthermore, the remote control device also comprises a manual remote control switch and a wireless remote control switch, wherein the manual remote control switch and the remote control switch are both in electric signal connection with the main controller.
Furthermore, a loading and unloading pump switch is connected with the master controller through an electric signal.
A control method for the emergency cut-off of a dangerous goods liquid tank truck utilizes any one of the above-mentioned dangerous goods liquid tank truck emergency cut-off interlocking device, including the control method for starting loading and unloading goods and the control method in the course of loading and unloading goods;
a method of initiating a control of loading and unloading of cargo comprising the steps of:
s11, parking the vehicle to a loading and unloading place, and connecting the oil filling riser with a loading and unloading port of the vehicle tank body;
s12, the main controller judges whether a sensor signal is received, if the sensor signal is received, the step S14 is carried out, and if the sensor signal is not received, the step S13 is carried out;
s13, the cylinder on the emergency cut-off valve does not act, the electromagnetic valve does not act, the emergency cut-off valve is in an open or closed state, and a loading and unloading pump switch does not respond;
s14, if the main controller receives the sensor signal, the main controller judges whether the pressure switch is closed, if the pressure switch is closed, the main controller sends a control signal to the loading and unloading pump switch, the loading and unloading pump switch responds to control, and the loading and unloading pump starts to load and unload cargoes; if the pressure switch is not closed, the main controller does not send a control signal to the loading and unloading pump switch, and the loading and unloading pump switch does not respond;
the control method in the process of loading and unloading goods comprises the following steps:
the main controller detects whether the sensor signal is continuously received, if so, the main controller does not send a control signal, otherwise, the main controller judges whether the time for continuously not receiving the sensor signal is greater than a set value or not, if the time is less than the set value, the main controller only sends an alarm signal, if the time is greater than or equal to the set value, the main controller sends a control signal to the electromagnetic valve, the electromagnetic valve acts to control the cylinder to act, the emergency cut-off valve is closed, and gas-liquid overflow is controlled.
Furthermore, a manual remote control switch and a wireless remote control switch are used for sending control instructions to the main controller, and the controller controls the emergency cut-off valve to be opened and closed through the electromagnetic valve and the air cylinder.
The invention has the beneficial effects that:
this technical scheme adopts the electrical apparatus response control mode to carry out after closely combining at the primary and secondary kneck installation inductor of feeding and just can normally load and unload the material, and when artificial misoperation appeared or the interface combines not in place, loading and unloading material mouth department inductor just can't perceive the signal, makes promptly cut off and is in the closed condition and ensures loading and unloading car safety. And a wireless remote mode can also be used for sending an instruction to the main controller to enable the cylinder arranged on the emergency cut-off valve at the lower part of the tank body to act to close the emergency cut-off valve and control gas-liquid overflow.
Drawings
Fig. 1 is a schematic diagram of the control principle of the present invention.
Detailed Description
The following embodiments are merely exemplary, and are not to be construed as limiting the technical aspects of the present invention.
As shown in fig. 1, the present application provides an emergency cut-off interlock device for a hazardous material liquid tank truck, which is disposed between a storage tank and a vehicle tank body, and is used for ensuring the safety of loading and unloading hazardous materials or other liquid or gas materials.
In the technical solution of the present application, the storage tank concerned is an existing storage tank, and there is no specific requirement particularly on the shape of the storage tank, and the present application is not directed to the improvement of the storage tank, as for the content in the storage tank, any liquid or gas substance that should or can be stored in the storage tank can be used, in the present embodiment, the chemical hazardous substance stored in the storage tank is taken as an example for explanation, because the chemical hazardous substance has at least flammable, explosive, toxic and harmful characteristics.
This device includes the oil filling riser, in this application, the structure of oil filling riser does not improve, it still is prior art or conventional technology's oil filling riser structure, current common oil filling riser is the hose, be convenient for connect with the loading and unloading mouth of the vehicle jar body, also there is the oil filling riser of hard material certainly, the oil filling riser of for example oil loading and unloading platform uses the hard tube usually, the oil filling riser is other usually to have connect the trachea, an atmospheric pressure for balancing the vehicle pipe is internal, there are two pipelines for the rear end of this oil filling riser (the one end of keeping away from the vehicle jar body loading and unloading mouth), be gas phase pipeline and liquid phase pipeline respectively, wherein gas phase pipeline is connected with the gas phase connecting pipe, the liquid phase pipeline is connected with the liquid phase connecting pipe.
The sensor sets up in the tip of oil filling riser and the loading and unloading mouth department of vehicle jar body, and the sensor of this application can be position sensor or pressure sensor, as long as can detect whether meet the requirements with being connected of the loading and unloading mouth of vehicle jar body can, sensor and master controller electricity signal connection, the instant signal who will detect sends main control unit to.
In the technical scheme of this application, be provided with loading and unloading trestle between storage tank and the loading and unloading point that is used for the vehicle to berth, be provided with loading and unloading pump (compression pump, compressor etc.) on loading and unloading trestle, and loading and unloading pump switch also sets up on loading and unloading trestle, loading and unloading pump passes through loading and unloading pump switch and is connected with the power, loading and unloading pump switch and master controller electric signal connection, the export of loading and unloading pump is connected with the liquid phase pipeline of oil filling riser, the import of loading and unloading pump is connected with the one end of liquid phase connecting pipe, liquid phase connecting pipe and an exit linkage of T type pipe, the other two mouths and the lower part of storage tank of T type pipe are connected, be provided with the quick action emergency cut-off valve on T type pipe, in other embodiments of this application, also can not set up T type pipe.
The utility model provides an emergency cut-off valve is by the cylinder as the power supply of opening or closing, and the cylinder sets up on emergency cut-off valve, and the air inlet pipeline and the air supply of cylinder are connected, and what set up on air inlet pipeline has an electromagnetic valve, and this electromagnetic valve is used for controlling the switching of air inlet pipeline. In the technical scheme of this application, the cylinder switch-on air supply or close the air supply and all can close the quick action emergency valve or open the quick action emergency valve, and is same opposite, and this department designs as required, does not influence this technical scheme's realization, and the difference is only, when the cylinder switches on the air supply, the quick action emergency valve is closed, or the air supply is closed to the cylinder (when the cylinder is the ordinary pressure) the quick action emergency valve is opened, and another kind is when the air supply is closed to the cylinder, the quick action emergency valve is closed, or the cylinder switches on the air supply (when the cylinder is the ordinary pressure) the quick action emergency valve is opened. In other embodiments of the present application, the action relationship between the cylinder and the quick dump valve can also be adjusted as needed.
The pressure switch is arranged at the air source of the hand brake of the vehicle, only when the driver pulls down the hand brake, the pressure switch can be closed by electric shock, and the electromagnetic valve is closed or opened and is used for cutting off the air source of the cylinder or switching on the air source of the cylinder. In this application, pressure switch and solenoid valve all with master controller electrical signal connection.
In this application, still be provided with artifical remote control switch and wireless remote control switch, artifical remote control switch and remote control switch all with main control unit electric signal connection for send control instruction to the master controller.
The emergency cut-off interlocking device of the dangerous goods liquid tank truck comprises a control method for starting loading and unloading goods and a control method in the process of loading and unloading goods, and is used for controlling whether to load and unload goods and how to control dangerous conditions in the process of loading and unloading goods.
A method of controlling the commencement of cargo handling, comprising the steps of:
s11, the vehicle is parked to a loading and unloading place, and the oil filling riser is connected with a loading and unloading material port of the vehicle tank body.
S12, the main controller judges whether a sensor signal is received, if the sensor signal is received, the connection between the oil filling riser and a loading and unloading material port of the vehicle tank body is in place and meets the requirement, and the loading and unloading of goods can be carried out, the step S14 is carried out, and if the sensor signal is not received, the connection between the oil filling riser and the loading and unloading material port of the vehicle tank body is not in place and the loading and unloading conditions of the goods are not met, the step S13 is carried out.
Step S13, the cylinder on the emergency cut-off valve does not operate (the non-operation means that the emergency cut-off valve is still in an original state, under the normal condition, when goods are not loaded and unloaded, the emergency cut-off valve is in an open state, whether goods are loaded and unloaded is controlled by a loading and unloading pump, so that the problem that the service life and the precision of the emergency cut-off valve are influenced because the emergency cut-off valve needs to frequently operate when continuous goods are loaded and unloaded is avoided, the electromagnetic valve does not operate (a main controller does not send a working instruction and the electromagnetic valve keeps the current state unchanged), the emergency cut-off valve is in an open state (of course, the emergency cut-off valve can be set to be in a closed state), a loading and unloading pump switch does not respond, the main controller does not send a loading and unloading instruction to the loading and unloading pump, and at the loading and unloading pump switch is not switched on and keeps a running state when a loading and unloading pump switch button is manually pressed.
S14, if the main controller receives the sensor signal, the main controller judges whether the pressure switch is closed, if the pressure switch is closed, the main controller sends a control signal to the loading and unloading pump switch, the loading and unloading pump switch controls the loading and unloading pump to be started, or when a start button of the loading and unloading pump switch needs to be manually pressed, the loading and unloading switch responds (the loading and unloading switch responds to whether the loading and unloading pump can be switched on or not by the aid of the main controller automatic control part or the manual pressing of the loading and unloading pump switch), and the loading and unloading pump starts to load and unload cargoes; if the pressure switch is not closed, the main controller does not send a control signal, the cylinder on the emergency cut-off valve does not act, the electromagnetic valve does not act, the emergency cut-off valve is in a closed state, the switch of the loading and unloading pump does not respond, and the loading and unloading of cargoes cannot be carried out.
The control method in the process of loading and unloading goods comprises the following steps:
this part of the control in this application refers to the control during normal cargo handling.
The master controller detects whether continuously receives the sensor signal, if yes, the master controller does not send a control signal, if not, whether the time of continuously not receiving the sensor signal is greater than a set value is judged, for example, 3 seconds, 5 seconds, 10 seconds and the like, if the time is less than the set value, the master controller only sends an alarm signal to remind an operator, and the situation that the loading and unloading material port of the temporary loading and unloading pipe and the vehicle tank body is not in accordance with the regulations exists, and attention and inspection are needed.
If the pressure is larger than or equal to the set value, the situation that the connection between the oil filling riser and the loading and unloading port of the vehicle tank body is not in accordance with the specified situation and is too long is indicated, the main controller sends a control signal to the electromagnetic valve, the electromagnetic valve acts, the cylinder acts, the emergency cut-off valve is closed, gas-liquid overflow is controlled, and meanwhile an alarm signal is sent to the local and remote places.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.
Claims (7)
1. An emergency cut-off interlocking device of a dangerous goods liquid tank car is characterized by comprising an oil filling riser, a sensor, a gas phase connecting pipe, a liquid phase connecting pipe, an emergency cut-off valve, an air cylinder, an electromagnetic valve, a pressure switch, a hand brake and a main controller;
the sensor is arranged at the end part of the oil filling riser and the loading and unloading port of the vehicle tank body and used for sensing whether the connection between the oil filling riser and the loading and unloading port of the vehicle tank body meets the requirement or not, and the sensor is in electric signal connection with the main controller;
one end of the gas phase connecting pipe and one end of the liquid phase connecting pipe are both connected with the oil filling riser, the other end of the gas phase connecting pipe is connected with the upper part of the storage tank, and the other end of the liquid phase connecting pipe is connected with the lower part of the storage tank;
the liquid phase connecting pipe is provided with an emergency cut-off valve and a loading and unloading pump, the air cylinder is arranged on the emergency cut-off valve and is a power source for closing or opening the emergency cut-off valve, and the loading and unloading pump is connected with a power supply through a loading and unloading pump switch;
the solenoid valve sets up on the intake pipe way of cylinder, the solenoid valve with pressure switch electricity is connected, pressure switch is connected with the hand brake, pressure switch and solenoid valve all with main control unit signal of telecommunication.
2. The emergency shutdown interlock device for the hazardous liquid tank truck according to claim 1, wherein the storage tank is connected to the liquid phase connection pipe through a T-shaped pipe, and the emergency shutdown valve is provided on the T-shaped pipe.
3. The emergency shutdown interlock of a hazardous materials tank truck of claim 1, wherein the emergency shutdown valve is open for cylinder pressure or closed for cylinder pressure.
4. The emergency cut-off interlocking device for the dangerous cargo liquid tank truck as claimed in claim 1, further comprising a manual remote control switch and a wireless remote control switch, wherein the manual remote control switch and the remote control switch are both in electrical signal connection with the main controller.
5. The emergency shutdown interlock of a hazardous materials liquid tanker according to claim 1, wherein the loading pump switch is electrically connected to the master controller.
6. A control method for emergency cut-off of a dangerous goods liquid tank truck, which utilizes the interlocking device for emergency cut-off of the dangerous goods liquid tank truck according to any one of the claims 1 to 5, and is characterized by comprising a control method for starting loading and unloading goods and a control method in the process of loading and unloading goods;
a method of controlling the commencement of cargo handling, comprising the steps of:
s11, parking the vehicle to a loading and unloading place, and connecting the oil filling riser with a loading and unloading port of the vehicle tank body;
s12, the main controller judges whether a sensor signal is received, if the sensor signal is received, the step S14 is carried out, and if the sensor signal is not received, the step S13 is carried out;
s13, the cylinder on the emergency cut-off valve does not act, the electromagnetic valve does not act, the emergency cut-off valve is in an open or closed state, and a loading and unloading pump switch does not respond;
s14, if the main controller receives the sensor signal, the main controller judges whether the pressure switch is closed, if the pressure switch is closed, the main controller sends a control signal to the loading and unloading pump switch, the loading and unloading pump switch responds to control, and the loading and unloading pump starts to load and unload cargos; if the pressure switch is not closed, the main controller does not send a control signal to the loading and unloading pump switch, and the loading and unloading pump switch does not respond;
the control method in the process of loading and unloading goods comprises the following steps:
the main controller detects whether the sensor signal is continuously received, if so, the main controller does not send a control signal, otherwise, the main controller judges whether the time for continuously not receiving the sensor signal is greater than a set value or not, if the time is less than the set value, the main controller only sends an alarm signal, if the time is greater than or equal to the set value, the main controller sends a control signal to the electromagnetic valve, the electromagnetic valve acts to control the cylinder to act, the emergency cut-off valve is closed, and gas-liquid overflow is controlled.
7. The control method for the emergency cut-off of the dangerous goods liquid tank truck as claimed in claim 6, wherein the controller controls the opening and closing of the emergency cut-off valve through the electromagnetic valve and the air cylinder by sending a control command to the main controller through a manual remote control switch and a wireless remote control switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211001441.4A CN115259066A (en) | 2022-08-19 | 2022-08-19 | Emergency cut-off interlocking device for dangerous goods liquid tank truck and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211001441.4A CN115259066A (en) | 2022-08-19 | 2022-08-19 | Emergency cut-off interlocking device for dangerous goods liquid tank truck and control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115259066A true CN115259066A (en) | 2022-11-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211001441.4A Pending CN115259066A (en) | 2022-08-19 | 2022-08-19 | Emergency cut-off interlocking device for dangerous goods liquid tank truck and control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115259066A (en) |
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2022
- 2022-08-19 CN CN202211001441.4A patent/CN115259066A/en active Pending
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Effective date of registration: 20221214 Address after: 256500 Binzhou Shandong Boxing Economic Development Zone Applicant after: SHANDONG CHAMBROAD LOGISTICS CO.,LTD. Address before: East of Provincial Road 228, Economic Development Zone of Boxing County, Binzhou City, Shandong Province 256500, South of Yellow River Jiqing Canal, Hebei Branch Applicant before: Shandong Xintai Logistics Service Co.,Ltd. |