CN210738541U - Safety guarantee system for underground coal gasification mine type gasification furnace - Google Patents
Safety guarantee system for underground coal gasification mine type gasification furnace Download PDFInfo
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- CN210738541U CN210738541U CN201720824735.5U CN201720824735U CN210738541U CN 210738541 U CN210738541 U CN 210738541U CN 201720824735 U CN201720824735 U CN 201720824735U CN 210738541 U CN210738541 U CN 210738541U
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- 238000002309 gasification Methods 0.000 title claims abstract description 96
- 239000003245 coal Substances 0.000 title claims abstract description 15
- 238000004886 process control Methods 0.000 claims abstract description 62
- 238000009423 ventilation Methods 0.000 claims abstract description 54
- 238000001514 detection method Methods 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 238000012544 monitoring process Methods 0.000 claims abstract description 15
- 239000007789 gas Substances 0.000 claims description 111
- 238000004880 explosion Methods 0.000 claims description 8
- 230000001174 ascending effect Effects 0.000 claims description 6
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 3
- 231100001261 hazardous Toxicity 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 241001494479 Pecora Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000011268 retreatment Methods 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The utility model discloses a coal underground gasification mine type gasification furnace safety guarantee system and an implementation method, the system comprises a gas detection unit, an air supply unit, a gasification agent supply unit, a process control unit and an alarm unit, wherein the gas detection unit is used for monitoring the concentration of specific gas in a gasification furnace ventilation roadway in real time; the air supply unit is used for supplying circulating gas into the gasification furnace ventilation roadway; the gasification agent supply unit is used for adjusting the supply amount of the gasification agent, and the process control unit is used for controlling the air supply amount of the air supply unit and the supply amount of the gasification agent supply unit; the alarm unit is used for alarming in a ventilation roadway of the gasification furnace and on a system; the system can automatically monitor and reduce the concentration of specific gas in the ventilation roadway of the gasification furnace, and plays a role in safety guarantee.
Description
Technical Field
The utility model relates to a coal underground gasification technical field, more specifically relates to a coal underground gasification mine formula gasifier safety guarantee system.
Background
The underground coal gasification mine type gasification furnace is constructed in a manual tunneling mode, and an air inlet roadway, an air outlet roadway and a connecting roadway are excavated around the gasification furnace in a coal seam in sequence in the construction process, so that a communicated ventilation roadway is formed. The ventilation roadway is used for providing certain air for gasification furnace constructors in the construction process of the gasification furnace; and in the operation process of the gasification furnace, the air supply device is used for supplying air to maintainers of the gasification furnace. Because a large amount of gas mixed gas is generated in the gasification furnace in the operation process of the gasification furnace, if the gas is leaked into a ventilation roadway, unnecessary harm is caused to the personal safety of people; if the concentration of the gas leaked to the ventilation tunnel is very high and approaches the gas limit explosion concentration, the danger hidden danger of explosion exists; in the prior art, a gas concentration monitoring and alarm device is arranged in a roadway, so that the frequent alarming, personnel evacuation and retreatment in actual use consume manpower and material resources; the mended safety monitoring system for the sheep death has potential safety hazards of incomplete monitoring range and the like.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that there is potential safety hazard and the extravagant manpower and materials of current safety monitoring system and can not ensure safety completely in the underground gasification mine formula gasifier ventilation tunnel that the background art exists, the utility model provides a coal underground gasification mine formula gasifier safety guarantee system, system and implementation method carry out real-time supervision to the hazardous gas in the ventilation tunnel to automatic right the hazardous gas carries out safety treatment.
The safety guarantee system of the underground coal gasification mine type gasification furnace comprises:
the system comprises a gas detection unit, a gas detection unit and a control unit, wherein the gas detection unit comprises one or more gas detectors, and the gas detectors are used for monitoring the concentration of specific gas in a gasification furnace ventilation roadway in real time; the output end of the gas detection unit is connected with the input end of the process control unit through the industrial exchanger;
the air supply unit comprises one or more air blowers and is used for supplying circulating gas into the ventilation tunnel of the gasification furnace so as to ensure that the gas in the ventilation tunnel of the gasification furnace is alternately circulated; the air supply quantity of the air supply unit is controlled and adjusted by the process control unit; the input end of the air supply unit is connected with the output end of the process control unit through the industrial switch;
a gasifying agent supply unit for supplying a gasifying agent into the gasifier for a gasification reaction; the supply amount of the gasification agent supply unit is controlled and adjusted by a process control unit; the input end of the gasification agent supply unit is connected with the output end of the process control unit through an industrial exchanger;
a process control unit for controlling the air supply amount of the air supply unit and the gasifying agent supply amount of the gasifying agent supply unit according to the concentration of the specific gas of the gasification furnace detected by the gas detection unit; the input end and the output end of the process control unit are both connected with the industrial switch, and the input signals of all units are received by the industrial switch and output signals to the corresponding units;
the alarm unit is used for alarming in a ventilation roadway of the gasification furnace and on a system and is controlled by the process control unit; the input end of the alarm unit is connected with the output end of the process control unit through the industrial switch;
the system comprises a vibration detection unit, a process control unit and an alarm unit, wherein the vibration detection unit is used for monitoring vibration conditions in a gasification furnace and a gasification furnace ventilation roadway in real time and is controlled by the process control unit; the output end of the vibration detection unit is connected with the input end of the process control unit through the industrial switch;
the temperature detection unit is used for monitoring the temperature conditions in the gasification furnace and the gasification furnace ventilation roadway in real time, the temperature detection unit is controlled by the process control unit, and when the temperature value is detected to exceed a preset threshold value, the process control unit controls the alarm unit to alarm; the output end of the temperature detection unit is connected with the input end of the process control unit through the industrial switch;
the industrial switch connects all units needing to be accessed to the control network to form an industrial control network;
further, the specific gas comprises CO and CH4、H2And O2(ii) a The gas detector comprises a CO gas detector and a CH4Gas detector, H2Gas detector and O2A gas detector;
furthermore, the gas detectors are arranged in the gasification furnace ventilation roadway at equal intervals or at unequal intervals;
further, the ventilation roadway of the gasification furnace comprises an air inlet roadway, a connecting roadway and an air outlet roadway which are connected in sequence; the air supply unit supplies air through an air inlet lane;
furthermore, the ventilation gas sent into the gasification furnace ventilation roadway by the blower comprises air and CO2、N2(ii) a When people come in and go out of the gasification furnace ventilation roadway, the ventilation gas sent into the gasification furnace ventilation roadway by the blower comprises air;
further, when the concentration of any one of the one or more specific gases reaches N x W, the process control unit controls the air volume to increase to K times; if the specific gas concentration is not reduced to M W within the specified time T, the process control unit controls the supply amount of the gasifying agent to be reduced by L times; wherein W is the human body inhalable limit concentration or the specific gas explosion limit lower limit concentration of the specific gas, and the values of W of different specific gases are the same or different; m is more than 0 and less than or equal to N and less than or equal to 100 percent, K is more than or equal to 1, and L is more than or equal to 0 and less than or equal to 1;
further, when the continuous P point of the detection concentration of any one specific gas in the one or more specific gases is in an ascending trend, the process control unit controls the air volume to increase by K times; if the continuous P points which are continuously detected still show an ascending trend, the process control unit controls the supply amount of the gasification agent to be reduced by L times; wherein P is more than or equal to 3 and is an integer, K is more than or equal to 1, and L is more than or equal to 0 and less than or equal to 1;
further, when the concentration of any one of the one or more specific gases reaches V x W, the process control unit controls the alarm unit to alarm, wherein W is the human body inhalable limit concentration or the specific gas explosion limit lower limit concentration of the specific gas, the values of W of different specific gases are the same or different, and V is more than 0 and less than or equal to 100%.
The utility model has the advantages that: the technical scheme of the utility model, a coal underground gasification pit-type gasifier safety guarantee system is given, the safety guarantee system carries out real time monitoring to the specific gas (hazardous gas) concentration in the ventilation tunnel, when specific gas concentration rose, the safety guarantee system adjusts ventilation tunnel air supply volume and gasification agent supply volume automatically, makes specific gas concentration reduce, guarantees that specific gas concentration can not have the potential safety hazard and can not cause the injury to the human body yet, has also saved the waste of the manpower and materials because of handling the result in to specific gas concentration exceeds standard simultaneously.
Drawings
A more complete understanding of exemplary embodiments of the present invention may be had by reference to the following drawings:
FIG. 1 is a structural diagram of a safety guarantee system of a coal underground gasification mine type gasification furnace according to an embodiment of the present invention; and
fig. 2 is a layout diagram of a plurality of gas detectors in the ventilation roadway of the safety guarantee system of the underground coal gasification mine type gasification furnace according to the specific embodiment of the present invention.
Detailed Description
The exemplary embodiments of the present invention will now be described with reference to the accompanying drawings, which, however, may be embodied in many different forms and are not limited to the embodiments described herein, which are provided for the purpose of thoroughly and completely disclosing the present invention and fully conveying the scope of the present invention to those skilled in the art. The terminology used in the exemplary embodiments presented in the accompanying drawings is not intended to be limiting of the invention. In the drawings, the same units/elements are denoted by the same reference numerals.
Unless otherwise defined, terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Further, it will be understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense.
FIG. 1 is a structural diagram of a safety guarantee system of a coal underground gasification mine type gasification furnace according to an embodiment of the present invention; the safety guarantee system of the underground coal gasification mine type gasification furnace comprises:
the system comprises a gas detection unit 101, wherein the gas detection unit 101 comprises one or more gas detectors, and the gas detectors are used for monitoring the concentration of specific gas in a gasification furnace ventilation roadway in real time; the output end of the gas detection unit 101 is connected with the input end of the process control unit 104 through the industrial switch 108;
the air supply unit 102 comprises one or more blowers and is used for supplying circulating gas into the ventilation tunnel of the gasification furnace so as to enable the gas circulation in the ventilation tunnel of the gasification furnace to be changed; the air supply quantity of the air supply unit 102 is controlled and adjusted by a process control unit; the input end of the air supply unit 102 is connected with the output end of the process control unit 104 through the industrial switch 108;
a gasifying agent supply unit 103, wherein the gasifying agent supply unit 103 is used for supplying gasifying agents into the gasification furnace for gasification reaction; the supply amount of the gasification agent supply unit 103 is controlled and adjusted by a process control unit; the input end of the gasifying agent supply unit 103 is connected with the output end of the process control unit 104 through an industrial exchanger 108;
a process control unit 104 for controlling the air blowing amount of the air blowing unit 102 and the gasifying agent supply amount of the gasifying agent supply unit 103 according to the concentration of the gasifier specific gas detected by the gas detection unit 101; the input end and the output end of the process control unit 104 are both connected with the industrial switch 108, and receive the input signal of each unit through the industrial switch 108 and output the signal to the corresponding unit;
an alarm unit 105, wherein the alarm unit 105 is used for giving an alarm in the ventilation roadway of the gasification furnace and on the system, and the alarm unit is controlled by the process control unit 104; the input end of the alarm unit 105 is connected with the output end of the process control unit 104 through the industrial switch 108;
further, the system comprises:
the system comprises a vibration detection unit 106, wherein the vibration detection unit 106 is used for monitoring vibration conditions in the gasification furnace and the gasification furnace ventilation roadway in real time, the vibration detection unit 106 is controlled by a process control unit 104, and when a vibration value is detected to exceed a preset threshold value, the process control unit 104 controls an alarm unit 105 to give an alarm; the output end of the vibration detection unit 106 is connected with the input end of the process control unit 104 through the industrial switch 108;
the temperature detection unit 107 is used for monitoring the temperature conditions in the gasification furnace and the gasification furnace ventilation roadway in real time, the temperature detection unit 107 is controlled by the process control unit 105, and when the temperature value is detected to exceed a preset threshold value, the process control unit 104 controls the alarm unit 105 to give an alarm; the output end of the temperature detection unit 107 is connected with the input end of the process control unit 104 through the industrial switch 108;
the industrial switch 108 is used for connecting all units needing to be accessed to the control network to form an industrial control network;
further, the specific gas comprises CO and CH4、H2And O2(ii) a The gas detector comprises a CO gas detector and a CH4Gas detector, H2Gas detector and O2A gas detector;
furthermore, the gas detectors are arranged in the gasification furnace ventilation roadway at equal intervals or at unequal intervals;
furthermore, the gas detector is arranged in a ventilation roadway of the gasification furnace at equal intervals or unequal intervals by taking a group as a unit, and the group comprises a CO gas detector and CH4Gas detector, H2Gas detector and O2A gas detector; as shown in fig. 2, the gas detectors are arranged in the ventilation roadway at equal intervals in groups;
further, the ventilation roadway of the gasification furnace comprises an air inlet roadway, a connecting roadway and an air outlet roadway which are connected in sequence; the air supply unit 102 supplies air through an air inlet tunnel;
furthermore, the ventilation gas sent into the gasification furnace ventilation roadway by the blower comprises air and CO2、N2(ii) a When people come in and go out of the gasification furnace ventilation roadway, the ventilation gas sent into the gasification furnace ventilation roadway by the blower comprises air;
further, when the concentration of any one of the one or more specific gases reaches N × W, the process control unit 104 controls the air volume to increase to K times; if the specific gas concentration is not reduced to M × W within the prescribed time T, the process control unit 104 controls the amount of gasification agent supplied to be reduced by L times; wherein W is the human body inhalable limit concentration or the specific gas explosion limit lower limit concentration of the specific gas, and the values of W of different specific gases are the same or different; m is more than 0 and less than or equal to N and less than or equal to 100 percent, K is more than or equal to 1, and L is more than or equal to 0 and less than or equal to 1;
further, when the continuous P point of the detected concentration of any one of the one or more specific gases is in an ascending trend, the process control unit 104 controls the air volume to increase by K times; if the continuous P points which are continuously detected still show an ascending trend, the process control unit 104 controls the supply amount of the gasification agent to be reduced by L times; wherein P is more than or equal to 3 and is an integer, K is more than or equal to 1, and L is more than or equal to 0 and less than or equal to 1;
further, when the concentration of any one of the one or more specific gases reaches V × W, the process control unit 104 controls the alarm unit 105 to alarm, where W is the human body inhalable limit concentration or the specific gas explosion limit lower limit concentration of the specific gas, W values of different specific gases are the same or different, and V is greater than 0 and less than or equal to 100%.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A safety guarantee system of a coal underground gasification mine type gasification furnace, the system comprises:
the system comprises a gas detection unit, a gas detection unit and a control unit, wherein the gas detection unit comprises one or more gas detectors, and the gas detectors are used for monitoring the concentration of specific gas in a gasification furnace ventilation roadway in real time; the output end of the gas detection unit is connected with the input end of the process control unit through the industrial exchanger;
the air supply unit comprises one or more air blowers and is used for supplying circulating gas into the ventilation tunnel of the gasification furnace so as to ensure that the gas in the ventilation tunnel of the gasification furnace is alternately circulated; the air supply quantity of the air supply unit is controlled and adjusted by the process control unit; the input end of the air supply unit is connected with the output end of the process control unit through the industrial switch;
a gasifying agent supply unit for supplying a gasifying agent into the gasifier for a gasification reaction; the supply amount of the gasification agent supply unit is controlled and adjusted by a process control unit; the input end of the gasification agent supply unit is connected with the output end of the process control unit through an industrial exchanger;
a process control unit for controlling the air supply amount of the air supply unit and the gasifying agent supply amount of the gasifying agent supply unit according to the concentration of the specific gas of the gasification furnace detected by the gas detection unit; the input end and the output end of the process control unit are both connected with the industrial switch, and the input signals of all units are received by the industrial switch and output signals to the corresponding units;
the alarm unit is used for alarming in a ventilation roadway of the gasification furnace and on a system and is controlled by the process control unit; the input end of the alarm unit is connected with the output end of the process control unit through the industrial switch;
the system comprises a vibration detection unit, a process control unit and an alarm unit, wherein the vibration detection unit is used for monitoring vibration conditions in a gasification furnace and a gasification furnace ventilation roadway in real time and is controlled by the process control unit; the output end of the vibration detection unit is connected with the input end of the process control unit through the industrial switch;
the temperature detection unit is used for monitoring the temperature conditions in the gasification furnace and the gasification furnace ventilation roadway in real time, the temperature detection unit is controlled by the process control unit, and when the temperature value is detected to exceed a preset threshold value, the process control unit controls the alarm unit to alarm; the output end of the temperature detection unit is connected with the input end of the process control unit through the industrial switch;
and the industrial switch connects all units needing to be accessed to the control network to form the industrial control network.
2. The system of claim 1, wherein: the specific gas comprises CO and CH4、H2And O2(ii) a The gas detector comprises a CO gas detector and a CH4Gas detector, H2Gas detector and O2A gas detector.
3. The system of claim 1, wherein: the gas detectors are arranged in the gasification furnace ventilation roadway at equal intervals or at unequal intervals.
4. The system of claim 1, wherein: the ventilation roadway of the gasification furnace comprises an air inlet roadway, a connecting roadway and an air outlet roadway which are connected in sequence; and the air supply unit supplies air through an air inlet lane.
5. The system of claim 1, wherein: the ventilation gas sent into the gasification furnace ventilation roadway by the blower comprises air and CO2、N2(ii) a When someone goes out of the gasification furnace ventilation roadway, the ventilation gas sent into the gasification furnace ventilation roadway by the air blower comprises air.
6. The system of claim 1, wherein: when the concentration of any one of the one or more specific gases reaches N x W, the process control unit controls the air volume to be increased to K times; if the specific gas concentration is not reduced to M W within the specified time T, the process control unit controls the supply amount of the gasifying agent to be reduced by L times; wherein W is the human body inhalable limit concentration or the specific gas explosion limit lower limit concentration of the specific gas, and the values of W of different specific gases are the same or different; m is more than 0 and less than or equal to N and less than or equal to 100 percent, K is more than or equal to 1, and L is more than or equal to 0 and less than or equal to 1.
7. The system of claim 1, wherein: when the continuous P point of the detection concentration of any one of the one or more specific gases is in an ascending trend, the process control unit controls the air volume to increase by K times; if the continuous P points which are continuously detected still show an ascending trend, the process control unit controls the supply amount of the gasification agent to be reduced by L times; wherein P is more than or equal to 3 and is an integer, K is more than or equal to 1, and L is more than or equal to 0 and less than or equal to 1.
8. The system of claim 2, wherein: when the concentration of any one of the one or more specific gases reaches V x W, the process control unit controls the alarm unit to alarm, wherein W is the human body inhalable limit concentration or the specific gas explosion limit lower limit concentration of the specific gas, the values of W of different specific gases are the same or different, and V is more than 0 and less than or equal to 100%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720824735.5U CN210738541U (en) | 2017-07-07 | 2017-07-07 | Safety guarantee system for underground coal gasification mine type gasification furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720824735.5U CN210738541U (en) | 2017-07-07 | 2017-07-07 | Safety guarantee system for underground coal gasification mine type gasification furnace |
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| CN210738541U true CN210738541U (en) | 2020-06-12 |
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| CN201720824735.5U Active CN210738541U (en) | 2017-07-07 | 2017-07-07 | Safety guarantee system for underground coal gasification mine type gasification furnace |
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