Mobile automatic calibration and adjustment of coal mine gas detectors

 

(57) Abstract:

The invention relates to mining, mining, oil and gas industry, in particular to installations carrying out the setting and adjustment of gas detectors with remote sensors, type at-1 and at-3. The invention consists in the fact that mobile automatic calibration and adjustment of the mine detectors gas contains relay 1 time 2 switch, a standalone power source 3, the inverter 4 voltage relays 5 times, the first Board 6, the stabilizer 7, actuator 8, the blocks 9 of the regulations, the voltmeters 10, electronic components 11 gas detectors, remote sensors 12, the calibration gas cylinders, electro-pneumatic valves 11, the control unit 15 of the choice of gas concentration, the third relay 16 time, the second Board 17 mixer-dispenser 18, rotameters 19, the Converter 20 voltage. 1 Il.

The invention relates to mining, mining, oil and gas industry, in particular to installations carrying out the setting and adjustment of gas detectors with removable sensors, type at-1 ATZ-1.

The number of known installations and devices, prednaznachen is ontrol health functional elements (and.with. N 1588876, CL E 21 F 17/18, 1990). Similar technical solution is a device for controlling sensors gas protection.with. N 1689650, CL E 21 F 17/18, 1990) containing the switch, time relay, block light indication.

The disadvantages of these devices include: the need to stand preheating of gas detectors, high power consumption and the inability calibration using calibration gas mixture (ASG).

Closest to the present invention is an automated line calibration and commissioning of coal mine gas detectors [1] contains the nodes and blocks, electrically and pneumatically interconnected, such as pre-training, switch, rotameters, scoreboards, time relays and alarms gas.

The disadvantages of this automated line are: the inability to perform automatic calibration and adjustment, as the device prior preparation is not electrically connected with the stand of diagnosis, as well as a large power consumption and the need for connection to the grid 220, which excludes the possibility of this line in the mobile laboratory using a standalone power source, and therefore eco and calibration and adjustment, while significantly reducing energy consumption.

This goal is achieved by the fact that mobile automatic installation is equipped with a voltage Converter, switch, regulator, calibration cylinders-gas mixture, an Electromechanical unit selection gas concentration and gas detector, made of electronic unit and remote sensing element, the output of the first time relay connected to the input switch, the first output of a standalone power source connected in series through normally closed contact of the first relay time and the corresponding NC contact switch connected to each of the remote sensing element, a second output, a standalone power source through the normally open contact of the first relay time is connected to the voltage Converter and to the input of the second relay time the output of which is connected with the first Board, the third output, a standalone power source through the normally closed contact of the second relay time is connected to the input of the Electromechanical unit of the concentration of gas cylinders of calibration gas mixture through the respective electro-pneumatic valve connected to the mixer-dispenser, and the outputs of the Electromechanical unit choice of concentration of the scoreboard, moreover, the output of the voltage Converter connected in series through the stabilizer, block adjustment, electronic level switch gas and break contact of the switch is connected to each of the remote sensing element.

The drawing shows a structural diagram of the proposed installation.

This unit is designed for operation in a mobile laboratory using a standalone power source.

Mobile automatic calibration and adjustment of coal mine gas detectors made in the same metal frame, inside of which is electrically introduced: relay 1 time, the output of which is connected to the first input of the switch 2, a standalone power source 3 through the contacts of relay 1 time connected to switch 2 and to the input of the voltage transformer 4 and relay 5 time, the output of which is connected boards "End of the warm-up" 6, and the output of the voltage transformer 4 is connected to the inputs of stabilizers 7-1, 7-2, 7-3, the first outputs of which are connected with devices 8-1, 8-2, 8-3, and second outputs through blocks 9-1, 9-2, 9-3 adjustments associated with voltmeters 10-1, 10-2, 10-3, and the inputs of the electronic components of the signaling devices 11-1, 11-2, 11-3, which outputs through commands with electro-pneumatic valves 14-1, 14-2, 14-3, controlled Electromechanical unit 15 of the concentration of CH4associated with the relay 16 time, United with the Board 17, and the outputs of the electro-pneumatic valve 14 through the mixer-dispenser 18 and rotameters 19-1, 19-2, 19-3 gas lines are connected to the inputs of an external sensing elements 12-1, 12-2, 12-3, in addition, a standalone power source 3 is connected through a transformer 20 voltage device 21 determining the health of methane analyzers and Electromechanical input unit 15 of the concentration of gas.

The device operates as follows.

After connecting the unit to the stand-alone source 3 power (battery voltage 12 V) of the voltage (1.5 V) through the normally closed contacts of relay 1 1-1 time and through the normally closed contacts 2-1, 2-2, 2-3 switch 2 is fed to remote sensors 12-1, 12-2, 12-3, at the same time start relay 1 time, starting the countdown time (30 min) required for warm-up remote sensors 12-1, 12-2, 12-3.

After 30 min relay 1 time sends a signal to the switch 2 and through switch contacts 2-1, 2-2, 2-3 is the connection of the outputs of electronic components signalizatsia, and pins 1-2 closed and the voltage of 12 V from an auxiliary power source 3 through the contacts 1-2 is input to the inverter 4 voltage and the second relay 5 time starting the report time 10 min required for warm-up stabilizers 7-1, 7-2, 7-3, e-block detectors 11-1, 11-2, 11-3 and additional heating of the remote sensors 12-1, 12-2, 12-3. Completed the preparatory cycle by turning on the scoreboard, "the End of the warm-up" 6 and connecting the Electromechanical unit 15 choice of gas concentration by blocking contacts 5-1 relay 5 time to a standalone power source 3.

Converter output 4 voltage sets the voltage 127 V 50 Hz supply stabilizers 7-1, 7-2, 7-3, issuing voltage 52 B2-50 Hz through blocks 9-1, 9-2, 9-2 adjustments and controlling voltmeters, 10-1, 10-2, 10-3 e-blocks detectors 11-1, 11-2, 11-3, connected through a switch with 2 remote sensors 12-1, 12-2, 12-3, respectively.

When voltage is applied across the contacts 5-1 relay 5 time and through the control unit 15 of the concentration of gas in one of the electro-pneumatic valves 14-1, 14-2, 14-3 corresponding mixture from one container ASG 13-1, 13-2 or 13-3,meters 19-1, 19-2, 19-3 arrives at the remote sensors 12-1, 12-2, 12-3.

The filling gas pipeline methane-air mixture (1 min) is maintained through the third relay 16 time, starting Electromechanical unit 15, and is displayed on the display 17.

In case of discrepancy of data from the electronic alarm unit of gas concentration and the impossibility to install them using the built-in configuration items, the conclusion about the failure of this gas detector, then its functional units are subject to review and adjustment on the device 21 determining the health of methane detectors that connect to a standalone power source 3 through a transformer 20 voltage, converts 12 volt DC power in 1278 50 Hz similar to Converter 4.

Thus an advantage of the invention is to improve the performance verification and adjustment, while significantly reducing energy consumption by introducing in the installation of the converters 4, 20 voltage switch 2, stabilizers 7, calibration gas cylinders 13 and Electromechanical unit 15 choice of gas concentration.

MOBILE AUTOMATIC CALIBRATION AND adjustment of Sahtugot through which the flowmeter is connected to the gas detectors, the adjustment blocks and boards, characterized in that it is equipped with a voltage Converter, switch, regulator, calibration cylinders-gas mixture, an Electromechanical unit selection of gas concentration, the gas detector is made of electronic unit and remote sensing element, the output of the first time relay connected to the input switch, the first output of a standalone power source connected in series through normally closed contact of the first relay time and the corresponding NC contact switch connected to each of the remote sensing element, a second output, a standalone power source across normally open contact of the first relay time is connected to the voltage Converter and to the input of the second relay time the output of which is connected with the first Board, the third output, a standalone power source through the normally open contact of the second relay time is connected to the input of the Electromechanical unit of the concentration of gas cylinder calibration gas mixture through the corresponding electropneumatically valve connected to the mixer-dispenser, and the outputs of the Electromechanical unit of the concentration of gas is connected to the control inputs eeaieia through connected in series stabilizer, block adjustment, electronic level switch gas and break contact of the switch is connected to each of the remote sensing element.

 

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