CN202064996U - Frequency conversion and speed regulation gas pumping and discharging device based on programmable logic controller (PLC) - Google Patents
Frequency conversion and speed regulation gas pumping and discharging device based on programmable logic controller (PLC) Download PDFInfo
- Publication number
- CN202064996U CN202064996U CN2011201653863U CN201120165386U CN202064996U CN 202064996 U CN202064996 U CN 202064996U CN 2011201653863 U CN2011201653863 U CN 2011201653863U CN 201120165386 U CN201120165386 U CN 201120165386U CN 202064996 U CN202064996 U CN 202064996U
- Authority
- CN
- China
- Prior art keywords
- plc
- frequency converter
- plc controller
- gas
- pumping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007599 discharging Methods 0.000 title abstract 9
- 238000005086 pumping Methods 0.000 title abstract 9
- 238000006243 chemical reaction Methods 0.000 title abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 21
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000005065 mining Methods 0.000 description 11
- 239000003245 coal Substances 0.000 description 7
- 239000012141 concentrate Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 206010017740 Gas poisoning Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
Images
Landscapes
- Ventilation (AREA)
Abstract
The utility model relates to a gas pumping and discharging device, in particular to a frequency conversion and speed regulation gas pumping and discharging device based on a programmable logic controller (PLC), which comprises a frequency converter, a contactor normally open contact, a pumping and discharging fan, a gas sensor, a contactor coil, a PLC and a direct current battery. The frequency converter can be adjusted to obtain at least three frequencies of electric power, a three-way wire is connected between the frequency converter and the contactor normally open contact of the PLC, and the contactor normally open contact is connected with a motor of the pumping and discharging fan through the three-way wire. The frequency converter is connected with three output terminals of the PLC, the output end of the gas sensor is arranged in the PLC in a connecting mode to transmit electric signals of gas concentration, and the PLC is powered by the direct current battery. The PLC enables the concentration signals transmitted by the gas sensor to be divided into three ranges, and each concentration range controls signals of an output terminal of the PLC connected with the frequency converter, enables the frequency converter to output different voltages and frequencies, and finally controls the air pumping and discharging volume of the pumping and discharging fan. The gas pumping and discharging device can automatically control the pumping and discharging volume of the fan according to the gas concentration, is safe and reliable, and saves electric energy.
Description
Technical field
The utility model relates to a kind of gas exhaust and puts device, particularly puts device based on the gas exhaust of PLC frequency control, belongs to industrial machine and technical field of automation.
Background technology
In coal mining enterprise, gas explosion is that generation is arranged.According to " state-owned control of coalmine gas regulation ", the gas exceeding limit operation is forbidden in the colliery, when gas density reaches 1.5%, must quit work, and cuts off the electricity supply, and withdraws from personnel, handles, otherwise very easily causes security incident.Traditional ventilation fan start-stop mainly adopts manual mode, when needs are mined, and the on-the-spot pump drainage blower fan of opening.Though this operation is convenient, and fatal shortcoming is arranged.Before mining, there has been a certain amount of gas in the coal mining zone, and the staff does not know actual gas density, just enters to mine after of short duration pump drainage blower ventilation operation, and Device in Gas is not discharged into allowable concentration, causes gas poisoning easily; In addition, if the pump drainage blower fan is keeping powerful operation always, can consume unnecessary electric energy.The utility model can effectively solve this two aspects problem.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of gas exhaust based on the PLC frequency control and puts device, can guarantee to monitor at any time gas density, and regulates the pump drainage air quantity of pump drainage blower fan according to concentration range.
The concrete scheme that the technical solution problem is adopted is: put device based on the gas exhaust of PLC frequency control, comprise frequency converter 2, contactor constant open contact 4, pump drainage blower fan 5, firedamp sensor 9 and contactor coil 10, PLC controller 12 and dc-battery 13.Frequency converter 2 can adjust the electric energy of three kinds of frequencies at least, be connected with three road electric wires between it and the contactor constant open contact 4, contactor constant open contact 4 is connected by three road electric wires with the motor of pump drainage blower fan 5 again, frequency converter 2 is connected with three lead-out terminals of PLC controller 12, the output of firedamp sensor 9 is connected with the input of PLC controller 12, contactor coil 10 is connected with a lead-out terminal of PLC controller 12, and PLC controller 12 is by dc-battery 13 power supplies.PLC controller 12 with the concentration signal of firedamp sensor 9 transmission be divided into three scope＜0.5%, 0.5%～0.8%, 0.8%, the signal of PLC controller output end that is connected with frequency converter 2 of each gas density scope control.Also can be connected with fan operation indicator lamp 11 and gas density display 14 on other lead-out terminal of PLC controller 12.
Firedamp sensor 9 is connected with PLC controller 12, converts detected bank gas density signal to the signal of telecommunication and is transferred to the PLC controller.By artificial programming, the internal arithmetic processing unit of PLC controller can be done following processing with the signal of telecommunication that transmits: the gas density scope is divided into Three Estate＜0.5%(until can detected concentration), 0.5%～0.8%, 0.8%, different concentration ranges is controlled a sub-Y0 of PLC controller output end that is connected with frequency converter 2 respectively, Y1, the signal of Y2, make different voltage and the frequencies of frequency converter output, thereby keep low speed, middling speed or run up according to the motor that concentration drives the pump drainage blower fan that is attached thereto from low to high, the pump drainage air quantity of blower fan increases successively.When firedamp sensor will detect Gas Signal and be transferred to PLC, the contactor coil 10 of PLC controller output end electric, major loop contactor constant open contact 4 closures, fan operation; Fan operation indicator lamp 11 Chang Liang that link to each other with PLC by programming Control simultaneously; The gas density display that programming Control links to each other with PLC shows corresponding concentration value, gives the coal work personnel with reference.
The beneficial effects of the utility model are:
(1) energy conservation.Gas concentration sensor is transferred to PLC with detected gas concentration of mining the zone, and PLC is divided into three scopes with the gas density signal value, corresponding different ventilations, and the pump drainage blower fan need not to keep high power operation, saves energy always.
(2) safe and reliable.Gas concentration sensor is transferred to PLC with detected gas concentration, and PLC is transferred to the gas density display with the gas density signal, shows gas concentration in real time, for coal mining personnel reference.
(3) intelligent degree height.Directly control frequency converter frequency by PLC, thereby the transformation of control pump drainage rotation speed of fan does not need to operate manually, can move automatically.
Description of drawings
Fig. 1 is for putting the structural representation of device based on the gas exhaust of PLC frequency control;
Each label is represented successively among the figure: 1-air switch, 2-frequency converter, 3-thermal relay, 4-contactor constant open contact, 5-pump drainage blower fan, 6-start button, the 7-stop button, the 8-dc-battery, 9-firedamp sensor, 10-contactor coil, 11-fan operation indicator lamp, the 12-PLC controller, 13-dc-battery, 14-gas density display.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is further elaborated.
Embodiment 1:As shown in drawings, this gas exhaust is put device and is comprised frequency converter 2, contactor constant open contact 4, pump drainage blower fan 5, firedamp sensor 9 and contactor coil 10, PLC controller 12 and dc-battery 13.It is local preferably that pump drainage blower fan 5 is installed in the regional ventilating ratio of mining, the coal mining zone that the detection terminal of firedamp sensor 9 places gas to concentrate, its output is connected it by circuit with PLC controller 12, convert detected bank gas density signal to the signal of telecommunication and be transferred to the PLC controller.Frequency converter 2 can adjust the electric energy of three kinds of frequencies at least, be connected with three road electric wires between it and the contactor constant open contact 4, contactor constant open contact 4 is connected by three road electric wires with the motor of pump drainage blower fan 5 again, frequency converter 2 is connected with three lead-out terminals of PLC controller 12, contactor coil 10 is connected with a lead-out terminal of PLC controller 12, and PLC controller 12 is by dc-battery 13 power supplies.When new PLC controller uses for the first time, manually press start button 6, PLC starts working; When needing to change the PLC controller, manually press stop button 7, cut off the output of PLC; Button 6 and button 7 are by dc-battery 8 power supplies.
By artificial programming, the internal arithmetic processing unit of PLC controller 12 can be done following processing with the signal of telecommunication that firedamp sensor 9 transmits: with the gas density division of signal become three scope＜0.5%, 0.5%～0.8%, 0.8%, sub-Y0 of PLC controller output end that is connected with frequency converter 2 of each gas density scope control, Y1, the signal of Y2, make different voltage and the frequencies of frequency converter output, thereby keep low speed, middling speed or run up according to the motor that concentration drives the pump drainage blower fan that is attached thereto from low to high, the pump drainage air quantity of pump drainage blower fan increases successively.As this moment firedamp sensor to detect gas density be 0.3%, the Y0 terminal transmission of electric signals of PLC controller is to frequency converter 2, the motor power supply that voltage that frequency converter output is minimum and frequency are pump drainage blower fan 5 makes motor by 1/3 power operation.Be connected the normal bright demonstration of fan operation indicator lamp 11 beginnings on PLC controller 12 other lead-out terminals, gas density display 14 shows that in real time current concentration value is 0.3%.
Embodiment 2:As shown in drawings, this gas exhaust is put device and is comprised frequency converter 2, contactor constant open contact 4, pump drainage blower fan 5, firedamp sensor 9 and contactor coil 10, PLC controller 12 and dc-battery 13.It is local preferably that pump drainage blower fan 5 is installed in the regional ventilating ratio of mining, the coal mining zone that the detection terminal of firedamp sensor 9 places gas to concentrate, its output is connected it by circuit with PLC controller 12, convert detected bank gas density signal to the signal of telecommunication and be transferred to the PLC controller.Frequency converter 2 can adjust the electric energy of three kinds of frequencies at least, be connected with three road electric wires between it and the contactor constant open contact 4, contactor constant open contact 4 is connected by three road electric wires with the motor of pump drainage blower fan 5 again, frequency converter 2 is connected with three lead-out terminals of PLC controller 12, contactor coil 10 is connected with a lead-out terminal of PLC controller 12, and PLC controller 12 is by dc-battery 13 power supplies.When new PLC controller uses for the first time, manually press start button 6, PLC starts working; When needing to change the PLC controller, manually press stop button 7, cut off the output of PLC; Button 6 and button 7 are by dc-battery 8 power supplies.
By artificial programming, the internal arithmetic processing unit of PLC controller 12 can be done following processing with the signal of telecommunication that firedamp sensor 9 transmits: with the gas density division of signal become three scope＜0.5%, 0.5%～0.8%, 0.8%, sub-Y0 of PLC controller output end that is connected with frequency converter 2 of each gas density scope control, Y1, the signal of Y2, make different voltage and the frequencies of frequency converter output, thereby keep low speed, middling speed or run up according to the motor that concentration drives the pump drainage blower fan 5 that is attached thereto from low to high, the pump drainage air quantity of pump drainage blower fan 5 increases successively.As this moment firedamp sensor 9 to detect gas density be 0.5%, the Y1 terminal transmission of electric signals of PLC controller is to frequency converter 2, frequency converter 2 output higher voltage and frequency are the motor power supply of pump drainage blower fan 5, make motor by 2/3 power operation.The moment impact electric current that transformation takes place motor speed is bigger, carries out overload protection by 3 pairs of motors of thermal relay.As gas release aggravation this moment, concentration sensor detects concentration and increases to 0.6%, 0.7%, 0.8% gradually, then rotating speed of motor is constant, and be connected fan operation indicator lamp 11 normal bright demonstrations on PLC controller 12 other lead-out terminals, gas density display 14 respectively in real time the display density value be 0.5%, 0.6%, 0.7%, 0.8%.
Embodiment 3:As shown in drawings, this gas exhaust is put device and is comprised frequency converter 2, contactor constant open contact 4, pump drainage blower fan 5, firedamp sensor 9 and contactor coil 10, PLC controller 12 and dc-battery 13.It is local preferably that pump drainage blower fan 5 is installed in the regional ventilating ratio of mining, the coal mining zone that the detection terminal of firedamp sensor 9 places gas to concentrate, its output is connected it by circuit with PLC controller 12, convert detected bank gas density signal to the signal of telecommunication and be transferred to the PLC controller.Frequency converter 2 can adjust the electric energy of three kinds of frequencies at least, be connected with three road electric wires between it and the contactor constant open contact 4, contactor constant open contact 4 is connected by three road electric wires with the motor of pump drainage blower fan 5 again, frequency converter 2 is connected with three lead-out terminals of PLC controller 12, contactor coil 10 is connected with a lead-out terminal of PLC controller 12, and PLC controller 12 is by dc-battery 13 power supplies.When new PLC controller uses for the first time, manually press start button 6, PLC starts working; When needing to change the PLC controller, manually press stop button 7, cut off the output of PLC; Button 6 and button 7 are by dc-battery 8 power supplies.
By artificial programming, the internal arithmetic processing unit of PLC controller 12 can be done following processing with the signal of telecommunication that firedamp sensor 9 transmits: with the gas density division of signal become three scope≤0.5%, 0.5%～0.8%, 〉=0.8%, sub-Y0 of PLC controller output end that is connected with frequency converter 2 of each gas density scope control, Y1, the signal of Y2, make different voltage and the frequencies of frequency converter output, thereby keep low speed, middling speed or run up according to the motor that concentration drives the pump drainage blower fan that is attached thereto from low to high, the pump drainage air quantity of pump drainage blower fan 5 increases successively.It is 0.9% that firedamp sensor 9 detects gas density, and the Y2 terminal transmission of electric signals of PLC controller is to frequency converter 2, and the motor power supply that voltage that frequency converter 2 outputs are the highest and frequency are pump drainage blower fan 5 makes motor move by full power.The moment impact electric current that transformation takes place motor speed is bigger, carries out overload protection by 3 pairs of motors of thermal relay.Be connected the fan operation indicator lamp 11 normal bright demonstrations on PLC controller 12 other lead-out terminals, gas density display 14 shows that in real time current concentration value is 0.9%.
Each critical element type selecting is: firedamp sensor adopts the infrared gas senor type, and frequency converter adopts the FR-A540 type, and PLC adopts the FX2N type, and dc-battery 8 and 13 input voltage are 24V.
Claims (4)
1. put device based on the gas exhaust of PLC frequency control, comprise frequency converter (2), contactor constant open contact (4), pump drainage blower fan (5), firedamp sensor (9) and contactor coil (10), PLC controller (12) and dc-battery (13), it is characterized in that: frequency converter (2) can adjust the electric energy of three kinds of frequencies at least, be connected with three road electric wires between it and the contactor constant open contact (4), contactor constant open contact (4) is connected by three road electric wires with the motor of pump drainage blower fan (5) again, frequency converter (2) is connected with three lead-out terminals of PLC controller (12), the output of firedamp sensor (9) is connected with the input of PLC controller (12), contactor coil (10) is connected with a lead-out terminal of PLC controller (12), and PLC controller (12) is powered by dc-battery (13).
2. put device by the described gas exhaust of claim 1 based on the PLC frequency control, it is characterized in that: PLC controller (12) with the concentration signal of firedamp sensor (9) transmission be divided into three scope＜0.5%, 0.5%～0.8%, 0.8%, the signal of PLC controller output end that is connected with frequency converter (2) of each gas density scope control.
3. put device by the described gas exhaust of claim 1 based on the PLC frequency control, it is characterized in that: be connected with fan operation indicator lamp (11) on the lead-out terminal of PLC controller (12), the other end of indicator lamp is connected with contactor coil (10).
4. put device by the described gas exhaust of claim 1, it is characterized in that: be connected with a gas density display (14) on the lead-out terminal of PLC controller (12) based on the PLC frequency control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201653863U CN202064996U (en) | 2011-05-23 | 2011-05-23 | Frequency conversion and speed regulation gas pumping and discharging device based on programmable logic controller (PLC) |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201653863U CN202064996U (en) | 2011-05-23 | 2011-05-23 | Frequency conversion and speed regulation gas pumping and discharging device based on programmable logic controller (PLC) |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202064996U true CN202064996U (en) | 2011-12-07 |
Family
ID=45058864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201653863U Expired - Fee Related CN202064996U (en) | 2011-05-23 | 2011-05-23 | Frequency conversion and speed regulation gas pumping and discharging device based on programmable logic controller (PLC) |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202064996U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829774A (en) * | 2017-11-06 | 2018-03-23 | 平顶山天安煤业股份有限公司 | A kind of coal gas pumping method and device |
| CN110685948A (en) * | 2019-09-29 | 2020-01-14 | 西安重装韩城煤矿机械有限公司 | Control method, device and processor of automatic monitoring system for local ventilation of coal mine |
| CN113530593A (en) * | 2021-07-12 | 2021-10-22 | 河南理工大学 | Application method of intelligent ventilation device on coal face |
-
2011
- 2011-05-23 CN CN2011201653863U patent/CN202064996U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829774A (en) * | 2017-11-06 | 2018-03-23 | 平顶山天安煤业股份有限公司 | A kind of coal gas pumping method and device |
| CN110685948A (en) * | 2019-09-29 | 2020-01-14 | 西安重装韩城煤矿机械有限公司 | Control method, device and processor of automatic monitoring system for local ventilation of coal mine |
| CN113530593A (en) * | 2021-07-12 | 2021-10-22 | 河南理工大学 | Application method of intelligent ventilation device on coal face |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204835083U (en) | A smart jack for intelligent house | |
| CN201415910Y (en) | Escalator controller | |
| CN204175620U (en) | A kind of fan intelligent control system | |
| CN209592272U (en) | A kind of aluminium-air cell management system based on PLC | |
| CN202533127U (en) | Self-generating remote-transmission water meter device without power source | |
| CN202064996U (en) | Frequency conversion and speed regulation gas pumping and discharging device based on programmable logic controller (PLC) | |
| CN103104532B (en) | A kind of mining intelligent ventilator controller | |
| CN202520354U (en) | Closed-loop control system of mine ventilator | |
| CN202563284U (en) | Coal mine adaptive ventilator system | |
| CN201074364Y (en) | Digitalized wireless programmed water supply system | |
| CN205405231U (en) | Tunnel engineering air compressor remote monitoring economizer system based on thing networking | |
| CN202180762U (en) | Intelligent safe power supply device for overhead line of electric locomotive | |
| CN204205712U (en) | A kind of transforming plant DC power supply is near, remote wireless monitoring system | |
| CN201100261Y (en) | Intelligent energy-saver for wind engine | |
| CN102882452A (en) | Micro-power consumption singlechip-based control device and method for high-voltage direct current motor | |
| CN202889265U (en) | Soft starter control system driving three-phase squirrel cage asynchronous motor to operate | |
| CN205484517U (en) | Grid voltage current monitoring system | |
| CN203135554U (en) | Power equipment monitoring device | |
| CN203703311U (en) | Natural gas transportation valve remote opening and closing device | |
| CN203201842U (en) | Mining intelligent ventilator controller | |
| CN201696079U (en) | High-efficiency energy-saving automatic mine gas emission system | |
| CN202939429U (en) | Arc extinguishing cabinet controller | |
| CN214011783U (en) | Intelligent kiln control system based on Internet of things technology | |
| CN201896625U (en) | Energy conservation and safety control system of mining fan | |
| CN201134153Y (en) | Receiving controller for positive and negative rotation of three phase AC motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20140523 |