CN221277517U - Automatic gas pump house discharging device based on gas concentration - Google Patents
Automatic gas pump house discharging device based on gas concentration Download PDFInfo
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- CN221277517U CN221277517U CN202323306231.9U CN202323306231U CN221277517U CN 221277517 U CN221277517 U CN 221277517U CN 202323306231 U CN202323306231 U CN 202323306231U CN 221277517 U CN221277517 U CN 221277517U
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- 238000007599 discharging Methods 0.000 title claims description 23
- 239000003245 coal Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- 238000005065 mining Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010892 electric spark Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model belongs to the technical field of coal mine production, and particularly relates to a gas pump room automatic discharge device based on gas concentration, which comprises a PLC (programmable logic controller), a gas sensor, an electromagnetic valve, two travel switches and a pushing cylinder, wherein the PLC is used for controlling the gas sensor to control the gas pump room automatic discharge device; the output end of the gas sensor is connected with the PLC, the output end of the PLC is connected with the electromagnetic valve, the shell of the pushing cylinder is connected with the wall surface, the push rod of the pushing cylinder is connected with the window frame of the pump room and used for pushing the window frame to be opened or closed, and the cylinder body of the pushing cylinder is communicated with the compressed air pipeline through the electromagnetic valve; the two travel switches are respectively arranged at the opening position and the closing position of the window frame, and the output end of the travel switch is connected with the input end of the PLC. The utility model has high safety and long service life.
Description
Technical Field
The utility model belongs to the technical field of coal mine production, and particularly relates to a gas pump house automatic discharging device based on gas concentration.
Background
In coal mining, gas extraction work is extremely important. According to the guiding principle of extraction before extraction in coal mining, a gas extraction pump station is generally built on the ground before mining, and gas generated in an underground coal bed is continuously extracted to the ground. Sometimes, the gas concentration in the room of the gas extraction pump is increased due to the gas leakage of a pipeline or a valve, and accidents such as choking, burning and even explosion of the gas can be possibly caused when the gas concentration exceeds a certain degree, so that the gas is discharged in time when the gas concentration is high, and the gas is effectively prevented from happening. However, when the gas concentration is increased, people are often difficult to perceive, so that timely windowing ventilation cannot be achieved, the gas concentration is continuously increased, and the risk of gas accidents is increased. The gas alarm can effectively monitor the gas concentration in the pump room, but needs manual on duty real-time monitoring, and in case the alarm still needs manual operation to carry out timely ventilation, and can't accomplish automatic window opening immediately, after the gas reduces to a certain extent, also can not in time close the window automatically, not only influence indoor heat preservation, can lead to the pump room wind and rain to attack for a long time and debris to blow in too much moreover.
Disclosure of utility model
The utility model overcomes the defects existing in the prior art, and solves the technical problems that: the automatic gas pump room discharging device based on the gas concentration is provided, so that the automatic gas discharge of a gas extraction pump room is realized, and the manual participation is reduced.
In order to solve the technical problems, the utility model adopts the following technical scheme: the automatic gas pump house discharging device based on the gas concentration comprises a PLC controller, a gas sensor, an electromagnetic valve, two travel switches and a pushing cylinder; the output end of the gas sensor is connected with the PLC, the output end of the PLC is connected with the electromagnetic valve, the shell of the pushing cylinder is connected with the wall surface, the push rod of the pushing cylinder is connected with the window frame of the pump room and used for pushing the window frame to be opened or closed, and the cylinder body of the pushing cylinder is communicated with the compressed air pipeline through the electromagnetic valve; the two travel switches are respectively arranged at the opening position and the closing position of the window frame, and the output end of the travel switch is connected with the input end of the PLC.
The automatic gas pump room discharging device based on the gas concentration further comprises a direct current switch power supply and a touch display screen, wherein the input end of the direct current switch power supply is connected with a power supply, the output end of the direct current switch power supply is connected with the touch display screen and the power input end of the PLC controller through a fuse, and the input end of the touch display screen is connected with the output end of the PLC controller.
The automatic gas pump room discharging device based on the gas concentration further comprises a starting switch, one end of the starting switch and one end of the two travel switches are connected with the output positive electrode of the direct current switching power supply, and the other end of the starting switch and one end of the two travel switches are respectively connected with I0.0, I0.1 and I0.2 ports of the PLC.
The automatic gas pump room discharging device based on the gas concentration further comprises a relay KA1, a relay KA2 and a gas alarm lamp RD, wherein one ends of the relay KA1, the relay KA2 and the gas alarm lamp RD are respectively connected with ports Q0.0, Q0.1 and Q0.2 of the PLC, and the other ends of the relay KA1, the relay KA2 and the gas alarm lamp RD are grounded;
the electromagnetic valve is a double-head electromagnetic valve, and coils R1 and R2 of the electromagnetic valve are respectively connected with a contact KA1-1 of a relay KA1 and a contact KA2-1 of a relay KA2 in series and then are connected with two ends of a power supply.
The PLC controller comprises an analog quantity module, and a signal output end of the gas sensor is connected with a 0+ port of the analog quantity module of the PLC controller.
The automatic gas pump house discharging device based on the gas concentration further comprises a relay KA3 and an exhaust fan M, wherein one end of the relay KA3 is connected with a Q0.3 port of the PLC, and the other end of the relay KA3 is grounded; the exhaust fan M is connected with the contacts KA3-1 of the relay KA3 in series and then connected with two ends of a power supply.
Compared with the prior art, the utility model has the following beneficial effects:
The utility model provides a gas pump house automatic discharging device based on gas concentration, which controls a gas discharging facility in a pump house to be automatically started through a gas sensor, and in addition, a cylinder is driven and pushed by the wind force of a compressed air pipeline, so that the automatic opening and closing of a window are realized, electric sparks and high-temperature gas are not generated, and the safety is high; moreover, the power-off of the electromagnetic valve is controlled by arranging 2 travel switches, so that the electromagnetic valve is prevented from being electrified for a long time to burn out, and the service life of the device is prolonged.
Drawings
FIG. 1 is a block diagram of an automatic gas pump house discharging device based on gas concentration according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of the arrangement of a pushing cylinder according to an embodiment of the present utility model;
FIG. 3 is a schematic circuit diagram of an embodiment of the present utility model;
FIG. 4 is a diagram of an input point connection of a PLC controller in an embodiment of the utility model;
FIG. 5 is a diagram of an output point of a PLC controller according to an embodiment of the present utility model;
FIG. 6 is a schematic diagram of an analog module of a PLC controller according to an embodiment of the present utility model;
In the figure: 1 is a window frame, 2 is a supporting frame, 3 is a pushing cylinder, 4 is a fixed plate, 5 is a wall, 6 is a window frame rotating shaft, and 7 is a travel switch.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments; all other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1, the embodiment of the utility model provides a gas pump room automatic discharging device based on gas concentration, which comprises a PLC controller, a gas sensor, an electromagnetic valve, two travel switches 7 and a pushing cylinder 3; the output end of the gas sensor is connected with the PLC, the output end of the PLC is connected with the electromagnetic valve, the shell of the pushing cylinder 3 is connected with the wall surface, the push rod of the pushing cylinder is connected with the window frame of the pump room and used for pushing the window frame to be opened or closed, and the cylinder body of the pushing cylinder is communicated with the compressed air pipeline through the electromagnetic valve; the two travel switches 7 are respectively arranged at the opening position and the closing position of the window frame, and the output end of the travel switches is connected with the input end of the PLC.
Specifically, as shown in fig. 2, in this embodiment, the window frame 1 is a rotary window frame, the window frame 1 integrally rotates around a window frame rotating shaft 6, a supporting frame 2 is fixedly arranged at the top of the window frame 1, a shell of the pushing air cylinder 3 is rotationally connected with a fixing plate 4, the fixing plate 4 is fixedly connected with a wall 5, the shell of the pushing air cylinder 3 is rotationally connected with the wall through the fixing plate 4, a push rod is hinged with the supporting frame 2, and the pump house window frame 1 is rotationally connected through the supporting frame 2. When the push rod of the pushing cylinder 3 is shortened, the supporting frame 2 and the window frame 1 are driven to rotate clockwise to the position of a broken line, and the window is opened. When the push rod of the pushing cylinder 3 stretches, the supporting frame 2 and the window frame 1 are driven to rotate anticlockwise to the solid line position, and the window is closed. When the window frame is opened and closed in place, the two travel switches 7 are respectively operated, and a signal is output to the PLC controller.
As shown in fig. 3, the automatic gas pump room discharging device based on gas concentration in this embodiment further includes a dc switch power supply and a touch display screen, wherein an input end of the dc switch power supply is connected with a power supply, an output end of the dc switch power supply is connected with the touch display screen and a power input end of a PLC controller through a fuse, and an input end of the touch display screen is connected with an output end of the PLC controller.
As shown in fig. 4, the automatic gas pump room discharging device based on gas concentration in this embodiment further includes a start switch SB, one end of the start switch SB, the travel switches K1, K2 is connected with the output anode of the dc switch power supply, and the other end is connected with the ports I0.0, I0.1, I0.2 of the PLC controller, respectively.
As shown in fig. 5, the automatic gas pump room discharging device based on gas concentration in this embodiment further includes a relay KA1, a relay KA2 and a gas alarm lamp RD, wherein one ends of the relay KA1, the relay KA2 and the gas alarm lamp RD are respectively connected with ports Q0.0, Q0.1 and Q0.2 of the PLC controller, and the other ends are grounded; as shown in fig. 3, the electromagnetic valve is a double-headed electromagnetic valve, and coils R1 and R2 of the electromagnetic valve are respectively connected with a contact KA1-1 of a relay KA1 and a contact KA2-1 of a relay KA2 in series and then are connected with two ends of a power supply.
Further, in this embodiment, the PLC controller includes an analog module, as shown in fig. 6, and the signal output end of the gas sensor is connected to the 0+ port of the analog module of the PLC controller. Specifically, in this embodiment, the model of the PLC controller is siemens SMART 200.
Further, as shown in fig. 5, the automatic gas pump house discharging device based on gas concentration in this embodiment further includes a relay KA3 and an exhaust fan M, where one end of the relay KA3 is connected to the Q0.3 port of the PLC controller, and the other end is grounded; the exhaust fan M is connected with the contacts KA3-1 of the relay KA3 in series and then connected with two ends of a power supply.
The working principle of the utility model is as follows: the air pressure pipeline led out from the air pressure machine room is connected with the pushing air cylinder through the electromagnetic valve, the output end of the gas sensor is connected with the PLC, when the gas concentration exceeds a set high value, the PLC controls the relays KA1 and KA3 and the gas alarm lamp to be powered on, the contact KA1-1 of the relay KA1 is connected, the coil R1 on the left side of the electromagnetic valve is powered on, so that the connection between the pushing air cylinder and the air pressure pipeline is disconnected, the air cylinder push rod is shortened, the window frame is automatically opened for ventilation, when the window frame is opened in place, the travel switch at the position is opened for sending a signal to the PLC, so that the electromagnetic valve is powered off, and the damage to the electromagnetic valve caused by long-time power on is avoided; meanwhile, the contact KA3-1 of the relay KA3 is connected, and a fan arranged at the window is opened to discharge gas indoors. When the gas concentration is lower than a set low value, the PLC controller controls the relay KA2 to be powered on, the contact KA2-1 of the relay KA2 is powered on, the coil R2 on the right side of the electromagnetic valve is powered on, so that the connection between the pushing cylinder and the compressed air pipeline is opened, the push rod of the cylinder is stretched, the window frame is automatically closed, and when the window frame is closed in place, the travel switch at the closed position sends a signal to the PLC controller, so that the electromagnetic valve is powered off, and the electromagnetic valve is prevented from being damaged by long-time power on; simultaneously, the contact KA3-1 of the relay KA3 is disconnected, and the fan is closed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.
Claims (6)
1. The automatic gas pump room discharging device based on the gas concentration is characterized by comprising a PLC controller, a gas sensor, an electromagnetic valve, two travel switches and a pushing cylinder; the output end of the gas sensor is connected with the PLC, the output end of the PLC is connected with the electromagnetic valve, the shell of the pushing cylinder is connected with the wall surface, the push rod of the pushing cylinder is connected with the window frame of the pump room and used for pushing the window frame to be opened or closed, and the cylinder body of the pushing cylinder is communicated with the compressed air pipeline through the electromagnetic valve; the two travel switches are respectively arranged at the opening position and the closing position of the window frame, and the output end of the travel switch is connected with the input end of the PLC.
2. The automatic gas pump house discharging device based on the gas concentration is characterized by further comprising a direct-current switch power supply and a touch display screen, wherein the input end of the direct-current switch power supply is connected with a power supply, the output end of the direct-current switch power supply is connected with the touch display screen and the power supply input end of a PLC (programmable logic controller) through a fuse, and the input end of the touch display screen is connected with the output end of the PLC.
3. The automatic gas pump house discharging device based on the gas concentration according to claim 1, further comprising a start switch, wherein one end of the start switch and one end of the two travel switches are connected with an output positive electrode of a direct current switch power supply, and the other ends of the start switch and the two travel switches are respectively connected with I0.0, I0.1 and I0.2 ports of the PLC.
4. The automatic gas pump house discharging device based on the gas concentration according to claim 1, further comprising a relay KA1, a relay KA2 and a gas alarm lamp RD, wherein one ends of the relay KA1, the relay KA2 and the gas alarm lamp RD are respectively connected with the Q0.0, the Q0.1 and the Q0.2 ports of the PLC controller, and the other ends are grounded;
the electromagnetic valve is a double-head electromagnetic valve, and coils R1 and R2 of the electromagnetic valve are respectively connected with a contact KA1-1 of a relay KA1 and a contact KA2-1 of a relay KA2 in series and then are connected with two ends of a power supply.
5. The automatic gas pump house discharging device based on the gas concentration according to claim 1, wherein the PLC controller comprises an analog quantity module, and a signal output end of the gas sensor is connected with a 0+ port of the analog quantity module of the PLC controller.
6. The automatic gas pump house discharging device based on the gas concentration according to claim 1, further comprising a relay KA3 and an exhaust fan M, wherein one end of the relay KA3 is connected with a Q0.3 port of the PLC controller, and the other end of the relay KA3 is grounded; the exhaust fan M is connected with the contacts KA3-1 of the relay KA3 in series and then connected with two ends of a power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323306231.9U CN221277517U (en) | 2023-12-05 | 2023-12-05 | Automatic gas pump house discharging device based on gas concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323306231.9U CN221277517U (en) | 2023-12-05 | 2023-12-05 | Automatic gas pump house discharging device based on gas concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221277517U true CN221277517U (en) | 2024-07-05 |
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ID=91703786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323306231.9U Active CN221277517U (en) | 2023-12-05 | 2023-12-05 | Automatic gas pump house discharging device based on gas concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221277517U (en) |
-
2023
- 2023-12-05 CN CN202323306231.9U patent/CN221277517U/en active Active
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