CN203412613U - Mine ventilation safety monitoring system - Google Patents
Mine ventilation safety monitoring system Download PDFInfo
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- CN203412613U CN203412613U CN201320471222.2U CN201320471222U CN203412613U CN 203412613 U CN203412613 U CN 203412613U CN 201320471222 U CN201320471222 U CN 201320471222U CN 203412613 U CN203412613 U CN 203412613U
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- blower fan
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Abstract
The utility model discloses a mine ventilation safety monitoring system. The mine ventilation safety monitoring system comprises a data collector, an inlet display plate, draught fans and a control circuit. The mine ventilation safety monitoring system is characterized in that the control circuit comprises an electronic switch AL1, an alarming relay, an automatic running relay, a signal conversion relay, a contactor for controlling the draught fan I to start and a contactor for controlling the draught fan II to start, wherein the electronic switch AL1 is started by a control signal emitted by the data collector; the signal conversion relay is used for controlling the inlet display plate to display whether the CO index is qualified. The system can automatically detect CO in a mine, can automatically start ventilation equipment and display the CO qualification situation according to the detection result, so as to improve the underground working conditions and air quality, and can guarantee the safety production in the mine.
Description
Technical field
The utility model relates to a kind of Mine Monitoring and Control System, specifically a kind of mine ventilation safety monitoring system.
Background technology
Underground metal & nonmetal mines is in underground mining process, and owing to being subject to ventilation condition restriction, the toxic and harmful that driling explosion produces is one of key factor affecting mine safety always, and particularly CO intoxication accident occurs repeatedly, hard to guard against.Blower fan is the capital equipment of mine ventilation system, for the ventilation of down-hole, improves condition of work and the air quality of down-hole, guarantees Mine Safety in Production.
In order to ensure the safety of underground operators, in work in the past, after driling explosion, produce CO pernicious gas, after personnel detect and exceed standard after testing, warning operating personnel manually lists.Again after testing personnel detect qualified after, manually board turning prompting operating personnel can enter field operation.The drawback of this way be list and board turning not in time, when CO exceeds standard, can not list in time, operating personnel swarms into dangerous operation environment in unwitting situation, has a strong impact on mine safety; Board turning in time after CO is qualified, operating personnel dare not enter setting, affects production efficiency.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, a kind of mine ventilation safety monitoring system is provided, this system can detect automatically to CO gas in mine, according to testing result, automatically start ventilation equipment and show CO Qualification, improve condition of work and the air quality of down-hole, guarantee Mine Safety in Production.
The purpose of this utility model is achieved in that a kind of mine ventilation safety monitoring system, comprising: data acquisition unit, for detection of CO concentration index, determines whether to send control signal according to CO concentration critical indicator; Entrance display board, for showing CO qualified or defective, prompting miner personnel could enter operation; Two Fans, reduce CO concentration for ventilation; Control circuit, controls the startup of show state and the control blower fan of entrance display board according to CO concentration index; It is characterized in that, described control circuit comprises, exchanges the Switching Power Supply that turns direct current; The electronic switch AL1 that the control signal of being sent by data acquisition unit starts; After connecting with alarm relay coil KA1, electronic switch AL1 is connected on the both positive and negative polarity of dc source; After connecting with alarm lamp LD1, alarm relay the first constant open contact KA1-1 is connected on the both positive and negative polarity of dc source; Automatically operation relay coil KA2 and control entrance display board show that CO qualified or underproof signal switching relay coil KA5 parallel connection are connected on the both positive and negative polarity of dc source after connecting with alarm relay the second constant open contact KA1-2 again; The contactor coil KA3 that controls No. 1 fan starting connects with the constant open contact of automatic operation relay and is connected on the both positive and negative polarity of dc source afterwards with the contactor coil KA4 parallel connection of controlling No. 2 fan startings.
In order to realize manual and automatic dual operation, described control circuit also comprises changeover switch SB1, No. 1 fan starting button SB2, No. 1 blower fan stop button SB3, No. 2 fan starting button SB4 and No. 2 blower fan stop button SB5; The automatic operation contact SB1-11 of changeover switch SB1 is connected on the circuit between alarm relay the second constant open contact KA1-2 and dc source; It is in series with button SB3 again after No. 1 blower fan hand push button circuit is in parallel with button SB2 by contactor constant open contact KA3-1; It is in series with button SB5 again after No. 2 blower fan hand push button circuit is in parallel with button SB4 by contactor constant open contact KA4-1; After the manual operation contact SB1-11 of changeover switch SB1, No. 1 blower fan hand push button circuit and contactor coil KA3 series connection, be connected on the both positive and negative polarity of dc source; After the manual operation contact SB1-11 of changeover switch SB1, No. 2 blower fan hand push button circuit and contactor coil KA4 series connection, be connected on the both positive and negative polarity of dc source.
In order to show the running status of native system, described control circuit also comprises automatic run indicator LD2, No. 1 fan operation indicator lamp LD3, No. 2 fan operation indicator lamp LD4, automatically after the automatic operation contact SB1-11 of run indicator LD2 and changeover switch SB1 series connection, be connected on the both positive and negative polarity of dc source, No. 1 fan operation indicator lamp LD3 and contactor coil KA3 are in parallel, and No. 2 fan operation indicator lamp LD4 and contactor coil KA4 are in parallel.
Described data acquisition unit comprises that XMB8000 intelligence four loop four digital display dual outputs are controlled to become and send table and CO sensor.
The Switching Power Supply that described interchange turns direct current is that 220V exchanges the Switching Power Supply that turns 24V direct current.
The utility model compared to the prior art its advantage is:
1) native system comprises the data acquisition unit for detection of CO concentration index, according to CO concentration critical indicator, determines whether to send control signal; Be used for showing CO qualified or defective entrance display board, prompting miner personnel could enter operation; For ventilation, reduce CO concentration two Fans; According to CO concentration index, control the show state of entrance display board and the startup control circuit of control blower fan; Can realize automatic detection, automatically control mouthful display board indication CO qualified or a defective state, automatically start and close blower ventilation, improve in time condition of work and the air quality of down-hole, guarantee Mine Safety in Production.
2) control circuit of native system is also provided with manual operation button, but real hand control and automation dual operation, and easy to use, system run all right is reliable.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model mine ventilation safety monitoring system.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail.
As shown in Figure 1, a safety monitoring system, comprising: data acquisition unit, and data acquisition unit comprises that XMB8000 intelligence four loop four digital display dual outputs are controlled to become and send table and CO sensor, for detection of CO concentration index, according to CO concentration critical indicator, determine whether to send control signal; Entrance display board, for showing CO qualified or defective, prompting miner personnel could enter operation; Two Fans, reduce CO concentration for ventilation; Control circuit, controls the startup of show state and the control blower fan of entrance display board according to CO concentration index; Described control circuit comprises, 220V exchanges the Switching Power Supply that turns 24V direct current; The electronic switch AL1 that the control signal of being sent by data acquisition unit starts; After connecting with alarm relay coil KA1, electronic switch AL1 is connected on the both positive and negative polarity of dc source; After connecting with alarm lamp LD1, alarm relay the first constant open contact KA1-1 is connected on the both positive and negative polarity of dc source; Automatically operation relay coil KA2 and control entrance display board show that CO qualified or underproof signal switching relay coil KA5 parallel connection are connected on the both positive and negative polarity of dc source after connecting with alarm relay the second constant open contact KA1-2 again; The contactor coil KA3 that controls No. 1 fan starting connects with the constant open contact of automatic operation relay and is connected on the both positive and negative polarity of dc source afterwards with the contactor coil KA4 parallel connection of controlling No. 2 fan startings.
In order to realize manual and automatic dual operation, described control circuit also comprises changeover switch SB1, No. 1 fan starting button SB2, No. 1 blower fan stop button SB3, No. 2 fan starting button SB4 and No. 2 blower fan stop button SB5; The automatic operation contact SB1-11 of changeover switch SB1 is connected on the circuit between alarm relay the second constant open contact KA1-2 and dc source; It is in series with button SB3 again after No. 1 blower fan hand push button circuit is in parallel with button SB2 by contactor constant open contact KA3-1; It is in series with button SB5 again after No. 2 blower fan hand push button circuit is in parallel with button SB4 by contactor constant open contact KA4-1; After the manual operation contact SB1-11 of changeover switch SB1, No. 1 blower fan hand push button circuit and contactor coil KA3 series connection, be connected on the both positive and negative polarity of dc source; After the manual operation contact SB1-11 of changeover switch SB1, No. 2 blower fan hand push button circuit and contactor coil KA4 series connection, be connected on the both positive and negative polarity of dc source.
In order to show the running status of native system, described control circuit also comprises automatic run indicator LD2, No. 1 fan operation indicator lamp LD3, No. 2 fan operation indicator lamp LD4, automatically after the automatic operation contact SB1-11 of run indicator LD2 and changeover switch SB1 series connection, be connected on the both positive and negative polarity of dc source, No. 1 fan operation indicator lamp LD3 and contactor coil KA3 are in parallel, and No. 2 fan operation indicator lamp LD4 and contactor coil KA4 are in parallel.
1) operation automatically:
Manual change-over switch SB1, to auto state, moves contact SB1-11 closed automatically, manually moves contact SB1-11 and disconnects;
When CO sensor detects CO concentration index and reaches regulation and start threshold 24ppm, the XMB8000 intelligence four loop four digital display dual outputs of data acquisition unit are controlled to become and are sent table to send control signal, drive electronic switch AL1 closed; Alarm relay coil KA1 obtains electric; Constant open contact KA1-1 is closed, and alarm lamp LD1 is lighted; Constant open contact KA1-2 is closed, makes signal switching relay coil KA5 and automatically move relay coil KA2 to obtain electric; Signal switching relay Driver Entry display board shows " CO exceeds standard, and no admittance "; Constant open contact KA2-1 is closed, and No. 1 fan operation indicator lamp LD3 lights, and No. 2 fan operation indicator lamp LD3 lights, and contactor coil KA3 and contactor coil KA4 obtain electric, and No. 1 blower fan and No. 2 blower fans obtain electricity and start operation.
CO sensor detects CO concentration index and is reduced to regulation and starts threshold 20ppm when following, and the XMB8000 intelligence four loop four digital display dual outputs of data acquisition unit are controlled to become and sent table to send control signal, drive electronic switch AL1 disconnection; Alarm relay coil KA1 dead electricity; Constant open contact KA1-1 disconnects, and alarm lamp LD1 extinguishes; Constant open contact KA1-2 disconnects, signal switching relay coil KA5 and automatically operation relay coil KA2 dead electricity; Signal switching relay Driver Entry display board shows " CO is qualified can enter in "; Constant open contact KA2-1 disconnects, and No. 1 fan operation indicator lamp LD3 extinguishes, and No. 2 fan operation indicator lamp LD3 extinguishes, contactor coil KA3 and contactor coil KA4 dead electricity, and No. 1 blower fan and No. 2 blower fan dead electricity are out of service.
2) manually operation:
Manual change-over switch SB1, to manual mode, automatically moves contact SB1-11 and disconnects, and manually moves contact SB1-11 closed;
Manually control No. 1 blower fan: press fan starting button SB2 No. 1, contactor coil KA3 obtains electric, the constant open contact KA3-1 of its control is closed, No. 1 fan starting operation, and No. 1 fan operation indicator lamp LD3 lights simultaneously; Press blower fan stop button SB3 No. 1, contactor coil KA3 dead electricity, the constant open contact KA3-1 of its control disconnects, and No. 1 blower fan dead electricity is out of service, and No. 1 fan operation indicator lamp LD3 extinguishes simultaneously.
Manually control No. 2 blower fans: press fan starting button SB4 No. 2, contactor coil KA4 obtains electric, the constant open contact KA4-1 of its control is closed, No. 2 fan starting operations, and No. 2 fan operation indicator lamp LD4 light simultaneously; Press blower fan stop button SB5 No. 2, contactor coil KA4 dead electricity, the constant open contact KA4-1 of its control disconnects, and No. 2 blower fan dead electricity is out of service, and No. 2 fan operation indicator lamp LD3 extinguish simultaneously.
Claims (5)
1. a mine ventilation safety monitoring system, comprising: data acquisition unit, for detection of CO concentration index, determines whether to send control signal according to CO concentration critical indicator; Entrance display board, for showing CO qualified or defective, prompting miner personnel could enter operation; Two Fans, reduce CO concentration for ventilation; Control circuit, controls the startup of show state and the control blower fan of entrance display board according to CO concentration index; It is characterized in that, described control circuit comprises, exchanges the Switching Power Supply that turns direct current; The electronic switch AL1 that the control signal of being sent by data acquisition unit starts; After connecting with alarm relay coil KA1, electronic switch AL1 is connected on the both positive and negative polarity of dc source; After connecting with alarm lamp LD1, alarm relay the first constant open contact KA1-1 is connected on the both positive and negative polarity of dc source; Automatically operation relay coil KA2 and control entrance display board show that CO qualified or underproof signal switching relay coil KA5 parallel connection are connected on the both positive and negative polarity of dc source after connecting with alarm relay the second constant open contact KA1-2 again; The contactor coil KA3 that controls No. 1 fan starting connects with the constant open contact of automatic operation relay and is connected on the both positive and negative polarity of dc source afterwards with the contactor coil KA4 parallel connection of controlling No. 2 fan startings.
2. mine ventilation safety monitoring system according to claim 1, is characterized in that: described control circuit also comprises changeover switch SB1, No. 1 fan starting button SB2, No. 1 blower fan stop button SB3, No. 2 fan starting button SB4 and No. 2 blower fan stop button SB5; The automatic operation contact SB1-11 of changeover switch SB1 is connected on the circuit between alarm relay the second constant open contact KA1-2 and dc source; It is in series with button SB3 again after No. 1 blower fan hand push button circuit is in parallel with button SB2 by contactor constant open contact KA3-1; It is in series with button SB5 again after No. 2 blower fan hand push button circuit is in parallel with button SB4 by contactor constant open contact KA4-1; After the manual operation contact SB1-11 of changeover switch SB1, No. 1 blower fan hand push button circuit and contactor coil KA3 series connection, be connected on the both positive and negative polarity of dc source; After the manual operation contact SB1-11 of changeover switch SB1, No. 2 blower fan hand push button circuit and contactor coil KA4 series connection, be connected on the both positive and negative polarity of dc source.
3. mine ventilation safety monitoring system according to claim 2, it is characterized in that: described control circuit also comprises automatic run indicator LD2, No. 1 fan operation indicator lamp LD3, No. 2 fan operation indicator lamp LD4, automatically after the automatic operation contact SB1-11 of run indicator LD2 and changeover switch SB1 series connection, be connected on the both positive and negative polarity of dc source, No. 1 fan operation indicator lamp LD3 and contactor coil KA3 are in parallel, and No. 2 fan operation indicator lamp LD4 and contactor coil KA4 are in parallel.
4. mine ventilation safety monitoring system according to claim 2, is characterized in that: described data acquisition unit comprises that XMB8000 intelligence four loop four digital display dual outputs are controlled to become and send table and CO sensor.
5. according to the mine ventilation safety monitoring system described in claim 1 to 4 any one, it is characterized in that: the Switching Power Supply that described interchange turns direct current is that 220V exchanges the Switching Power Supply that turns 24V direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471222.2U CN203412613U (en) | 2013-07-24 | 2013-07-24 | Mine ventilation safety monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320471222.2U CN203412613U (en) | 2013-07-24 | 2013-07-24 | Mine ventilation safety monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203412613U true CN203412613U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320471222.2U Expired - Fee Related CN203412613U (en) | 2013-07-24 | 2013-07-24 | Mine ventilation safety monitoring system |
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| Country | Link |
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| CN (1) | CN203412613U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925229A (en) * | 2018-09-20 | 2020-03-27 | 中国石油天然气股份有限公司 | Control system of indoor fan and indoor fan system |
-
2013
- 2013-07-24 CN CN201320471222.2U patent/CN203412613U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925229A (en) * | 2018-09-20 | 2020-03-27 | 中国石油天然气股份有限公司 | Control system of indoor fan and indoor fan system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140129 Termination date: 20140724 |
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| EXPY | Termination of patent right or utility model |