RU2279140C1 - Device for training specialists in removal of gas leaks from gas pipelines - Google Patents

Abstract

FIELD: engineering of training machines, possible use for preparing specialists in removal of gas leaks from gas pipelines in emergency rescue and fire services, in oil-gas, chemical and other industrial branches for training personnel of such departments, organizing looping courses of training tasks, having to do with handling of emergency situations.

SUBSTANCE: device includes model of gas pipelines with portion of pipe with locking pass valve, control station with mode switches, tank with compressed air, electo-pneumo-distributor, pressure indicator, pneumatic connecting pipes with connecting socket in form of connecting pipe, whistle, end switch, electric wire with socket, direct current power source, and also a band. One of connecting pipes is held on the pipe and is meant for quick connection of device to tank via one of aforementioned connecting pipes. Trainee must find leaking point on portion of pipe and remove the leak by applying band to aperture. If operation is performed correctly, whistling is stopped, pipe pressure is increased to reduced set pressure, and pressure signaler confirms that by sending a command to control panel.

EFFECT: possible modeling of real situation with signaling about completion of exercises, increased quality of professional training of trainees; possible autonomous training and testing under field conditions, without presence of compressed gas network.

13 cl, 1 dwg

Description

The invention relates to training devices and can be used to train specialists in eliminating gas leaks from gas pipelines in the rescue and fire services, in the oil and gas, chemical and other industries for training personnel of such units, practicing training tasks related to the elimination of emergency situations.

Known technical training tools in this area include the simulator of the trunk pipelines operator, disclosed in the description to a.c. CCCP No. 1262557, MKI G 09 B 9/00, publ. 10/07/1986. This simulator provides high-quality professional training for gas pipeline operators without the need for training at standard facilities that require significant air and resource consumption, i.e. It is not an object of increased danger in the classroom or in the field. However, this simulator does not simulate a gas leak.

Known gas leak simulators that are not filled with a working agent (air), in which only a limit switch is installed that is installed externally on the shut-off valve and signals the completion of the exercise, does not provide the sound effect of a gas leak, which reduces the effectiveness of the preparation.

As the closest analogue, a training device is adopted, known from the description to A.S. USSR No. 1312631, MKI G 09 B 9/00, publ. 05/23/1987, which, like the claimed invention, contains a control panel and a means of modeling real processes, designed to ensure similar conditions when modeling the conditions of a real situation in order to achieve maximum learning efficiency. However, in the known technical solutions, this similarity is very incomplete, which reduces the effectiveness of training.

The advantage of the proposed device is to achieve complete similarity of the working conditions with the training device to the conditions in a real environment with minimal air consumption during training and to make the device autonomous due to the modular design, as a result of which the control panel, as the most vulnerable unit of the device, can be disconnected from the model for transportation in special (gentle) conditions, so the device can be considered mobile (portable); and, finally, the installation of the device is simplified, since during assembly, for example, in the field, it is not necessary to ensure the tightness of the joints of the pipe sections and the valve.

The effectiveness of the claimed technical solution, its cost-effectiveness, mobility and simplicity of design are ensured by the fact that the device for training specialists in eliminating gas leaks from gas pipelines includes a source of compressed gas and / or means for connecting to a source of compressed gas, a control panel and a model of a gas pipeline, one from sections of the pipe which is made with a hole in the wall, which is blocked by a student's brace during the training or testing exercises, and has a check valve with a shut-off element prefecture, the latter being designed to cooperate with a limit switch connected to elektropnevmoraspredelitelem and pressure warning device, which is pneumatically connected with the opening at said portion of said tube and electrically connected to the control and remote control elektropnevmoraspredelitelem.

In particular, the pressure switch is pneumatically connected to the hole in the wall of the pipe portion of the gas pipeline model via at least one connecting pipe.

In particular, the device may be provided with a signal device.

In particular, the signal device stops issuing a signal when the bandage correctly covers the hole in the wall of the specified pipe section.

In particular, the means for connecting to a source of compressed gas is made in the form of a connecting tube and a fitting installed at the inlet of the electric air distributor and connected to the said pipe.

In particular, the source of compressed gas can be made in the form of a cylinder with compressed air.

In particular, at least a portion of the connecting tubes are located inside the pipe of the gas pipeline model.

In particular, the device can be equipped with a fitting fixed to the pipe section for connection to a pressure switch through a connecting pipe.

In particular, the signal device is made sound.

In particular, the signal device is made in the form of a whistle simulating the sound of a compressed gas coming out of an opening in the wall of a pipe.

In particular, the signal device is located inside the pipe section of the model with a hole in the wall and is connected with this hole.

In particular, the device may be equipped with an indicator of the correctness of the exercise located on the control panel.

The design of the device shown in the drawing.

The device consists of the following elements: the working part - a gas pipeline model with a pipe section 1 with a check valve 2, a control panel 3 with mode switches and light indicators of operation modes and the correct execution of exercises, cylinder 4 with compressed air (V = 7 l, P = 30 MPa) with a valve and a reducer, an electrodistributor 5, a pressure switch 6, pneumatic connecting tubes 7 with a connector 8 in the form of a fitting, a whistle 9, a limit switch 10, electrical wires 11 with a connector 12, a DC power source and 12 V, as well as a brace 13. One of the fittings 8 that the device is equipped with is mounted on the pipe 1 and is designed to quickly connect the device to a source of compressed gas through one of the connecting tubes 7.

The device operates as follows. If necessary (for example, when working autonomously in the field), the device is assembled by connecting connecting tubes to the corresponding connectors - through the fitting 14 of the cylinder 4 with compressed air fixed to the pipe section, and also installing and connecting the control panel 3 - by wires 11 through connector 12 Then open the valve of the cylinder 4 with compressed air and the gearbox and the power is supplied to the devices via electrical wires 11.

The reduced air pressure is supplied to a normally closed electrodistributor 5. The check valve 2 is in the initial position in the open state.

When the “mode 1” switch is turned on on the control panel 3, the indicator (for example, red) lights up, and the electrodistributor 5 supplies air under reduced pressure to the pressure switch 6 and through connecting tubes 7 through connector 8 to the whistle 9. An audible signal is emulated that simulates the sound of gas leaking under pressure.

The task of the student (or examiner) at this stage is to wrap the flywheel of valve 2 to close this valve until the gas pipeline is completely shut off. In this case, according to the signal from the limit switch 10, the electrodistributor 5 will stop the gas supply to the whistle, release the remaining pressure from the tube 7 into the atmosphere and a green light will be displayed on the control panel, indicating that this stage of the exercise has been completed (mode 1).

The following mode imitates another case of a gas pipeline malfunction, which is often encountered in practice - the elimination of leaks in the pipeline under conditions of a malfunction of the shutoff valve 2.

When the switch on the control panel 3 switches in the "mode 2" position, the electrodistributor 5 again supplies air to the whistle and on the control panel 3 a red indicator lights up, indicating the creation of conditions in accordance with mode 2.

The student must find a leak (hole) in the pipe section 1 and eliminate the leak by applying a bandage 13 to the hole. If the operation is completed correctly (the hole is completely closed), the whistle stops, the pressure in the tube 7 rises to the reduced installation pressure and, indicating this, the signaling device pressure 6 sends a command to the control panel 3, on which the green indicator lights up instead of red.

In this case, in the case of poor-quality installation of the bandage and temporary overlapping of the hole (for example, pressing it with your hand), after a subsequent leakage, on the control panel 3, instead of the green indicator, red will light up again, which indicates unsatisfactory completion of the task.

After the training session, the device can be easily and quickly dismantled, its individual elements are suitably packed for safe transportation.

Thus, the design of the proposed device provides the sound effect of a gas leak, the cessation of whistling when the shut-off valve is closed and the signaling of the exercise in mode 1 is performed, as well as the possibility of simulating a real situation - leakage of the shut-off valve in the closed position in mode 2 - finding the leak and training in eliminating leaks with the help of a brace with an alarm about the completion of the exercise, which will improve the quality of training of students. In addition, the device provides autonomy for conducting training or testing processes in the field - in the absence of a compressed gas network.

Claims (13)

1. A device for training specialists in eliminating gas leaks from gas pipelines, including a source of compressed gas and / or means for connecting the device to a source of compressed gas, a control panel and a model of a gas pipeline, one of the pipe sections of which has a hole in the wall, designed to be closed by a bandage in the learning process, and includes a check valve and a limit switch, while the latter is designed to interact with the shut-off element of the check valve and is connected to an electro-pneumatic distributor, and an indicator pressure, which is pneumatically connected to the hole in the indicated section of the pipe and is electrically connected to the control panel and the electric distributor. 2. The device according to claim 1, in which the pressure switch is pneumatically connected to the hole in the wall of the pipe section of the gas pipeline model by means of at least one connecting pipe. 3. The device according to claim 1, in which the means for connecting to a source of compressed gas is made in the form of a connecting tube and a fitting that is installed at the inlet of the electric air distributor and connected to the said tube. 4. The device according to claim 1, in which the source of compressed gas is made in the form of a cylinder with compressed air. 5. The device according to claim 1, in which at least part of the connecting tubes is placed inside the pipe model of the gas pipeline. 6. The device according to claim 1, which is equipped with a fitting fixed to the pipe section for connecting to a pressure switch through a connecting pipe. 7. The device according to claim 1, which is equipped with a signal device. 8. The device according to claim 7, in which the signal device is made sound. 9. The device of claim 8, in which the signal device is made in the form of a whistle that simulates the sound of a compressed gas coming out of a hole in the wall of a pipe. 10. The device according to claim 7, in which the signal device is placed inside the pipe section and connected with an opening in the wall of the said section. 11. The device according to claim 7, in which the signaling device stops issuing a signal when the bandage correctly covers the hole in the wall of said pipe section. 12. The device according to claim 1, which is equipped with an indicator of the correctness of the exercise located on the control panel. 13. The device according to item 12, in which the indicator of the correctness of the exercise is made sound and / or light.