CN1673487A - Underground gasification furnace operating state monitoring system - Google Patents
Underground gasification furnace operating state monitoring system Download PDFInfo
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- CN1673487A CN1673487A CN 200510063045 CN200510063045A CN1673487A CN 1673487 A CN1673487 A CN 1673487A CN 200510063045 CN200510063045 CN 200510063045 CN 200510063045 A CN200510063045 A CN 200510063045A CN 1673487 A CN1673487 A CN 1673487A
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Abstract
The underground gasifying furnace operation state monitoring system is used in underground coal gasifying production. The present invention includes three subsystems, inside-furnace monitoring subsystem, outside-furnace monitoring subsystem and injection and output monitoring subsystem for the direct dynamic monitoring of underground gasifying furnace. The monitoring system has monitoring device set inside hole to the gas flow channel and gasifying furnace to acquire the state parameters of the gasifying furnace directly. If necessary, monitoring lane and monitoring holes with sensor may be set around the gasifying furnace to acquire the state parameters of the gasifying furnace. The acquired information is transmitted to the information processing, storing and displaying device, so that the gasifying process state may be understood timely.
Description
Technical field
The invention belongs to the underground coal gasification(UCG) production field, particularly a kind of underground gasification furnace operating state monitoring system.
Background technology
The state that is in high temperature and is isolated from the outside during the underground gasification furnace operation, understanding underground gasification furnace operating state is a difficult problem.Though once did trial before this, but failed in gasification furnace, to carry out successful monitoring always.Main cause is to lack suitable laying mode, and the pyrometer couple consumption is big, drops into very highly, be difficult for to implement.Therefore, only carry out the direct monitoring of gasification furnace, recognize actual motion state and parameter, take direct effective measures with strong points, could promote underground gasification technology to be improved and develop according to it.
Summary of the invention
The objective of the invention is to design a kind of underground gasification furnace operating state monitoring system that when underground gasification furnace hot operation and the state that is isolated from the outside, uses.
Design scheme of the present invention is divided into monitoring and stove external monitor and injection in the stove, three subsystems are monitored in output.
1) in the described stove monitoring subsystem by high thermal resistance protection tube (3), temperature pick up (4) in the stove, pressure sensor (7), thermocouple (8), sensor conductor (9), wire (10), length indication board (11), gas sample carrier pipe (12) constitutes;
A. described high thermal resistance protection tube (3) is for protection and settles that temperature pick up (4) and pressure sensor (7) are provided with in the stove, is installed in gasifying agent passage (1) and gas passage (2) and ad hoc the monitoring in the stove in gasification furnace coal seam holed.Also can be used as the gas collecting pipe simultaneously, on protection tube (3) wall of coal seam section, be the distribution of plum blossom shape for this reason and get out pore, form gas sample inlet port;
B. temperature pick up (4) is higher than 1200 ℃ thermocouple (8) by 3～5 tolerable temperatures and forms in the described stove, each thermocouple is arranged in order in the past backward, spacing 1～3m, again with itself and sensor conductor (9) bondage on wire (10), constitute mobile hot galvanic couple group, be installed in the front end of high thermal resistance protection tube (3);
C. described wire (10) is gone up and every 0.5m a length indication board (11) is set, in order to indicate the accurate position of sensor;
D. described pressure sensor (7) is located near the high thermal resistance protection tube (3) in the lower safe isolation strip of temperature;
E. described gas sample carrier pipe (12) is picked out by the upper end outlet of high thermal resistance protection tube (3), is linked on the gas chromatograph in the section Monitoring and Controlling station (17).
2) described stove external monitor subsystem is by monitoring lane (13), and the stove external monitor is holed (14), and the outer state sensor group (15) of stove constitutes;
The outer state sensor group (15) of described stove is made up of 2～4 groups of temperature, pressure and main gas concentration sensor, is placed in the ad hoc stove external monitor boring (14).
3) described injection, output monitoring subsystem are in the gasifying agent injection and coal gas output channel of control alcove, install measure monitor instrument and respective sensor such as conventional temperature, pressure, flow, the parameters that the monitoring gasifying agent injects and coal gas is exported.
Described various sensor conductor (9) all is connected on the Monitoring and Controlling communications cable (16) in the centralized Control lane (5), various information are transferred to section Monitoring and Controlling station (17), control station is provided with information processing, storage, display unit in (17), simultaneously information is transferred to ground and concentrates the Monitoring and Controlling center.
System monitoring of the present invention is achieved in that
1) the high thermal resistance protection tube (3) of installing Φ 51～108mm in gasifying agent passage (1) and gas passage (2).In the coal seam in gasification furnace district,, be parallel to gas channel and lay monitoring boring in the stove to gasification face (6) from centralized Control lane (5), pitch-row 15～30m, evenly distributed.The high thermal resistance protection tube (3) of installing Φ 51～108mm in the hole;
2) will be tied with in the stove wire (10) of temperature pick up (4) and sensor conductor (9) draws and is inserted in each high thermal resistance protection tube (3); front end arrives gasification face (6); wire (10) and sensor conductor (9) afterbody stay outside the mouth of pipe of protection tube (3) upper end; and each sensor conductor (9) is connected on the Monitoring and Controlling communications cable (16) in the centralized Control lane, formed the thermal field and the displacement dynamic monitor of gasification face (6).
Realize dynamic monitoring by following step to gasification face (6) displacement:
A. at first measure the temperature of underground gasification furnace district's gasification face (6) normal combustion, be made as reference temperature(TR) by temperature pick up in the stove (4);
B. after gasification brings into operation, along with upwards passing of gasification face (6), the temperature that temperature pick up (4) records in the stove begins to descend, and at this moment will upwards spur wire (10) and make temperature pick up (4) records in the stove temperature get back to the reference temperature(TR) of normal combustion;
C. by being set in the length indication board (11) on the wire (10), determine gasification face (6) present position;
D. the action that repeats b and c just can make the state sensor (4) of forefront be in all the time on the gasification face (6).
3) pressure sensor is placed in the top of protection tube (3), gas sample carrier pipe is connected between the gas chromatograph in the suitable for reading and section Monitoring and Controlling station (18) of protection tube (3);
4) peripheral and keep a safe distance with it and lay and monitor lane (14) at gasification furnace with gasifying agent passage (1) position parallel with gas passage (2), lay stove external monitor boring (15) every 15～30m to gasification furnace in monitoring lane (14), at the bottom of the hole with gasifying agent passage (1) and gas passage (2) 3～5m apart;
5) the outer state sensor group (15) of stove is placed in the stove external monitor boring (14), be connected on the Monitoring and Controlling communications cable (16) in the centralized Control lane by sensor conductor (9), the Monitoring and Controlling communications cable (16) is linked into section Monitoring and Controlling station (17) again;
6) temperature everywhere that demonstrates according to section Monitoring and Controlling station (17) display unit, pressure and each length indication board (11) numerical value, understand the position and the vaporized state of gasification face (6), and in conjunction with gasifying agent injection and coal gas output parameter, overall understanding gasification operation dynamically;
7) data that monitor according to gas chromatograph, the change of component state of understanding gasification furnace output coal gas;
8) the outer state sensor group (15) of stove that demonstrates according to section Monitoring and Controlling station (17) display unit is sent the signal variation, and understanding gasifier operation influences situation to the periphery.
The invention has the beneficial effects as follows, realized the dynamic directly monitoring of underground gasification furnace operation, with running status, the outer state of stove and gasifying agent injection, coal gas output information in the stove, be transferred in the processing, storage, display unit at section Monitoring and Controlling station and ground monitoring center through the present invention, by providing the optimal control parameter after the computer expert system processing, use for control manipulation.
Below in conjunction with drawings and Examples the present invention is made a detailed description.
Description of drawings
Fig. 1 is a layout schematic diagram of the present invention;
Fig. 2 is the formation schematic diagram of mobile hot galvanic couple group of the present invention.
The specific embodiment
Referring to Fig. 1 and Fig. 2, wherein the gasifying agent passage 1, gas passage 2; temperature pick up 4 in the high thermal resistance protection tube 3, stove, centralized Control lane 5; gasification face 6, pressure sensor 7, thermocouple 8; sensor conductor 9, wire 10, length indication board 11; gas sample carrier pipe 12, monitoring lane 13, stove external monitor boring 14; the outer state sensor group 15 of stove, the Monitoring and Controlling communications cable 16, section Monitoring and Controlling station 17.
When the coal gas ordinary production, operating state monitoring system in the underground gasification furnace is set, the safety that can accomplish directly to observe the running status of gasification furnace and guarantee monitoring system is with low-cost.
1) in gasifying agent passage 1 and gas passage 2, install the high thermal resistance protection tube 3 of Φ 51～108mm, establish temperature pick up 4 in the stove in the pipe.
2) in the coal seam in gasification furnace district, from centralized Control lane 5 to gasification face 6, be parallel to gasifying agent passage 1 and gas passage 2 and lay monitoring boring in the stoves, pitch-row 15～30m, evenly distributed.The high thermal resistance protection tube 3 of dress Φ 51～108mm is established temperature pick up 4 and pressure sensor 7 in the stove in the hole in the pipe.
3) for reducing expensive high temperature heat-resistant galvanic couple consumption, temperature pick up 4 is mobile hot galvanic couple groups in the stove.In each protection tube 3, only establish the thermocouple 8 that 3～5 tolerable temperatures are higher than 1200 ℃; outwards be arranged in order from gasification face 6 ends; spacing 1～3m; again thermocouple 8 is connected with sensor conductor 9 and ties up and spread on the wire 10; constitute mobile hot galvanic couple group, on wire 10, a length indication board 11 is set simultaneously every 0.5m.During gasifier operation,, in time be pulled outwardly out wire 10 and take mobile hot galvanic couple group out of and move outward, the thermocouple 8 of forefront is on the gasification face 6 all the time according to the variation that gasification face 6 temperature show.The accurate position of temperature pick up 4 in 11 signs of length indication board are come out of the stove.
4) establish 2～3 pressure sensors 7 in the protection tube 3 of monitoring boring in the stove, the position is near the lower safe isolation strip of temperature.
5) each protection tube 3 also is a gasification furnace gas sample collection tube, for this reason on the tube wall of the protection tube 3 of coal seam section, is the plum blossom shape and distributes and bore saturating pore, as gas sample inlet port.The protection tube 3 gas sample carrier pipes 12 that connect suitable for reading are transported to the gas sample in the gas chromatograph in the section Monitoring and Controlling station 17.
6), peripheral and keep a safe distance with it and monitoring lane 13 is laid in the position parallel with gasifying agent passage 1 and gas passage 2 at gasification furnace when testing or during special requirement.Lay stove external monitor boring 14 every 15～30m to gasification furnace in the monitoring lane 13, at the bottom of the hole with gasifying agent passage 1 and gas passage 2 at a distance of 3～5m.
7) in stove external monitor boring 14, divide 2～4 sections to install temperature, pressure and main gas concentration sensor, constitute the outer state sensor group 15 of stove.The classification of each hole inner sensor, hop count and position are unified, form the monitoring net of outer 2～4 aspects of stove, directly gather the state parameter of gasification furnace periphery, understand gasification and involve influence basin.
8) move in the degassifying stove outside the peripheral monitoring device of dynamic monitor and gasification furnace, in the gasifying agent injection and coal gas output channel in the control alcove, be provided with measure monitor instrument and respective sensor such as conventional temperature, pressure, flow, the parameters that the monitoring gasifying agent injects and coal gas is exported.
9) all the sensors lead 9 all is connected on the Monitoring and Controlling communications cable 16 in the centralized Control lane, and the information of gathering is sent to section Monitoring and Controlling station 17.Be provided with information processing, storage, display unit in the control station 17, understand gasification in view of the above and carry out state, and it is transferred to the ground centralized-control center.Various information provide the optimal control parameter after being handled by computer expert system, use for control manipulation, in time take corresponding measure, make gasifier operation in perfect condition.
Claims (9)
1. a underground gasification furnace operating state monitoring system is characterized in that, system monitors three groups of subsystems by monitoring and stove external monitor and injection in the stove, output and becomes;
1) in the stove monitoring subsystem by high thermal resistance protection tube (3), temperature pick up (4) in the stove, pressure sensor (7), thermocouple (8), sensor conductor (9), wire (10), length indication board (11), gas sample carrier pipe (12) constitutes;
2) stove external monitor subsystem is by monitoring lane (13), and the stove external monitor is holed (14), and the outer state sensor group (15) of stove constitutes;
3) injecting, export monitoring subsystem is in the gasifying agent injection and coal gas output channel of control alcove, installs measure monitor instrument and respective sensor such as conventional temperature, pressure, flow.
2. underground gasification furnace operating state monitoring system according to claim 1; it is characterized in that; described high thermal resistance protection tube (3) is for protection and settles in the stove temperature pick up (4) and pressure sensor (7) and be provided with as the gas collecting pipe, is installed in gasifying agent passage (1) and gas passage (2) and ad hoc the monitoring in the stove in gasification furnace coal seam holed.
3. underground gasification furnace operating state monitoring system according to claim 1; it is characterized in that; temperature pick up (4) is higher than 1200 ℃ thermocouple (8) by 3～5 tolerable temperatures and forms in the described stove; each thermocouple (8) is arranged in order in the past backward; spacing 1～3m; again with itself and sensor conductor (9) bondage on wire (10); constitute mobile hot galvanic couple group; be installed in the front end of high thermal resistance protection tube (3), go up at described wire (10) and a length indication board (11) is set every 0.5m.
4. according to claim 1,3 described underground gasification furnace operating state monitoring systems is characterized in that, the dynamic monitoring of described gasification face (6) displacement is:
1) at first by the temperature of temperature pick up in the stove (4) mensuration underground gasification furnace district's gasification face (6) normal combustion, is made as reference temperature(TR);
2) after gasification brings into operation, along with upwards passing of gasification face (6), the temperature that temperature pick up (4) records in the stove begins to descend, and at this moment will upwards spur wire (10) and make temperature pick up (4) records in the stove temperature get back to the reference temperature(TR) of normal combustion;
3) by being set in the length indication board (11) on the wire (10), determine gasification face (6) present position;
4) action of repetition b and c just can make the state sensor (4) of forefront be in all the time on the gasification face (6).
5. underground gasification furnace operating state monitoring system according to claim 1 is characterized in that, described pressure sensor (7) places near the lower safe isolation strip of high thermal resistance protection tube (3) temperature.
6. underground gasification furnace operating state monitoring system according to claim 1 is characterized in that, described gas sample carrier pipe (12) is picked out by the upper end outlet of high thermal resistance protection tube (3), is linked on the gas chromatograph in the section Monitoring and Controlling station (17).
7. underground gasification furnace operating state monitoring system according to claim 1, it is characterized in that, the outer state sensor group (15) of described stove is made up of 2～4 groups of temperature, pressure and main gas concentration sensor, is placed in the ad hoc stove external monitor boring (14).
8. underground gasification furnace operating state monitoring system according to claim 1, it is characterized in that, described various sensor conductor (9) is connected on the Monitoring and Controlling communications cable (16) in the centralized Control lane (5), various information are transferred to section Monitoring and Controlling station (17), control station is provided with information processing, storage, display unit in (17), simultaneously information is transferred to ground and concentrates the Monitoring and Controlling center.
9. according to each described underground gasification furnace operating state monitoring system in the claim 1～8, it is characterized in that system monitoring is achieved in that
1) the high thermal resistance protection tube (3) of installing Φ 51～108mm in gasifying agent passage (1) and gas passage (2), in the coal seam in gasification furnace district, from centralized Control lane (5) to gasification face (6), be parallel to gas channel and lay monitoring boring in the stove, pitch-row 15～30m, evenly distributed, the high thermal resistance protection tube (3) of installing Φ 51～108mm in the hole;
2) will be tied with in the stove wire (10) of temperature pick up (4) and sensor conductor (9) draws and is inserted in each high thermal resistance protection tube (3), front end arrives gasification face (6), wire (10) and sensor conductor (9) afterbody stay outside the mouth of pipe of protection tube (3) upper end, and each sensor conductor (9) is connected on the Monitoring and Controlling communications cable (16) in the centralized Control lane;
3) pressure sensor is placed in the top of protection tube (3), gas sample carrier pipe is connected between the gas chromatograph in the suitable for reading and section Monitoring and Controlling station (18) of protection tube (3);
4) peripheral and keep a safe distance with it and lay and monitor lane (14) at gasification furnace with gasifying agent passage (1) position parallel with gas passage (2), lay stove external monitor boring (15) every 15～30m to gasification furnace in monitoring lane (14), at the bottom of the hole with gasifying agent passage (1) and gas passage (2) 3～5m apart;
5) the outer state sensor group (15) of stove is placed in the stove external monitor boring (14), be connected on the Monitoring and Controlling communications cable (16) in the centralized Control lane by sensor conductor (9), the Monitoring and Controlling communications cable (16) is linked into section Monitoring and Controlling station (17) again;
6) temperature everywhere that demonstrates according to section Monitoring and Controlling station (17) display unit, pressure and each length indication board (11) numerical value, understand the position and the change of temperature field of gasification face (6), and in conjunction with gasifying agent injection and coal gas output parameter, overall understanding gasification operation dynamically;
7) data that monitor according to gas chromatograph, the change of component state of understanding gasification furnace output coal gas;
8) the outer state sensor group (15) of stove that demonstrates according to section Monitoring and Controlling station (17) display unit is sent the signal variation, and understanding gasifier operation influences situation to the periphery.
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| CNB2005100630454A CN100342117C (en) | 2005-04-05 | 2005-04-05 | Underground gasification furnace operating state monitoring system |
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| CNB2005100630454A CN100342117C (en) | 2005-04-05 | 2005-04-05 | Underground gasification furnace operating state monitoring system |
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Cited By (11)
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| CN102536218A (en) * | 2010-12-27 | 2012-07-04 | 乌兰察布新奥气化采煤技术有限公司 | Method for monitoring temperature of coal underground gasification working surface |
| CN102635345A (en) * | 2012-04-13 | 2012-08-15 | 北京大学 | Underground gasification visualized ignition and monitoring device of coal |
| CN101649735B (en) * | 2009-06-24 | 2013-01-30 | 新奥科技发展有限公司 | Method, system and device for identifying combustion state of underground coal gasification furnace |
| CN104880214A (en) * | 2015-06-15 | 2015-09-02 | 成都边界元科技有限公司 | Equipment for fixing sensor for monitoring carbon emission intensity of industrial park |
| US9428978B2 (en) | 2012-06-28 | 2016-08-30 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
| US9435184B2 (en) | 2012-06-28 | 2016-09-06 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| CN106150471A (en) * | 2016-08-28 | 2016-11-23 | 中为(上海)能源技术有限公司 | Dock gasification furnace and operational approach for coal underground gasifying technology |
| CN106437673A (en) * | 2016-08-28 | 2017-02-22 | 中为(上海)能源技术有限公司 | Linear gasification furnace used for coal underground gasification process and operation method |
| CN107120104A (en) * | 2017-06-16 | 2017-09-01 | 新疆国利衡清洁能源科技有限公司 | A kind of system and method for being used to carrying out gasifying agent into mixing match |
| CN107462689A (en) * | 2017-08-24 | 2017-12-12 | 新疆国利衡清洁能源科技有限公司 | A kind of underground coal gasification(UCG) coal gas loss boundary demarcation system and its scaling method |
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Family Cites Families (2)
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| US4461349A (en) * | 1982-12-06 | 1984-07-24 | Atlantic Richfield Company | Long-line-drive pattern for in situ gasification of subterranean carbonaceous deposits |
| CN1013318B (en) * | 1988-10-21 | 1991-07-24 | 河北省电子技术研究所 | Gas producer temp.-measuring and microcomputer control system |
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- 2005-04-05 CN CNB2005100630454A patent/CN100342117C/en not_active Expired - Fee Related
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| CN101649735B (en) * | 2009-06-24 | 2013-01-30 | 新奥科技发展有限公司 | Method, system and device for identifying combustion state of underground coal gasification furnace |
| CN102536218A (en) * | 2010-12-27 | 2012-07-04 | 乌兰察布新奥气化采煤技术有限公司 | Method for monitoring temperature of coal underground gasification working surface |
| CN102536218B (en) * | 2010-12-27 | 2015-03-04 | 乌兰察布新奥气化采煤技术有限公司 | Method for monitoring temperature of coal underground gasification working surface |
| CN102635345A (en) * | 2012-04-13 | 2012-08-15 | 北京大学 | Underground gasification visualized ignition and monitoring device of coal |
| CN102635345B (en) * | 2012-04-13 | 2014-12-10 | 北京大学 | Underground gasification visualized ignition and monitoring device of coal |
| US9963949B2 (en) | 2012-06-28 | 2018-05-08 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| US9428978B2 (en) | 2012-06-28 | 2016-08-30 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
| US9435184B2 (en) | 2012-06-28 | 2016-09-06 | Carbon Energy Limited | Sacrificial liner linkages for auto-shortening an injection pipe for underground coal gasification |
| US9976403B2 (en) | 2012-06-28 | 2018-05-22 | Carbon Energy Limited | Method for shortening an injection pipe for underground coal gasification |
| CN104880214A (en) * | 2015-06-15 | 2015-09-02 | 成都边界元科技有限公司 | Equipment for fixing sensor for monitoring carbon emission intensity of industrial park |
| CN106150471A (en) * | 2016-08-28 | 2016-11-23 | 中为(上海)能源技术有限公司 | Dock gasification furnace and operational approach for coal underground gasifying technology |
| CN106437673A (en) * | 2016-08-28 | 2017-02-22 | 中为(上海)能源技术有限公司 | Linear gasification furnace used for coal underground gasification process and operation method |
| CN106437673B (en) * | 2016-08-28 | 2019-05-17 | 中为(上海)能源技术有限公司 | Linear gasification furnace and operating method for coal underground gasifying technology |
| CN107120104A (en) * | 2017-06-16 | 2017-09-01 | 新疆国利衡清洁能源科技有限公司 | A kind of system and method for being used to carrying out gasifying agent into mixing match |
| CN107462689A (en) * | 2017-08-24 | 2017-12-12 | 新疆国利衡清洁能源科技有限公司 | A kind of underground coal gasification(UCG) coal gas loss boundary demarcation system and its scaling method |
| CN114856525A (en) * | 2021-02-04 | 2022-08-05 | 中国石油天然气集团有限公司 | Experimental system and method for simulating gathering and transportation of crude gas produced by underground coal gasification |
| CN114856525B (en) * | 2021-02-04 | 2024-03-01 | 中国石油天然气集团有限公司 | Experimental system and method for simulating underground gasification of coal to produce crude gas for gathering and transportation |
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