CN104807681A - Automatic vacuum degassing instrument for coal bed gas or shale gas and corresponding vacuum degassing method - Google Patents
Automatic vacuum degassing instrument for coal bed gas or shale gas and corresponding vacuum degassing method Download PDFInfo
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- CN104807681A CN104807681A CN201410036180.9A CN201410036180A CN104807681A CN 104807681 A CN104807681 A CN 104807681A CN 201410036180 A CN201410036180 A CN 201410036180A CN 104807681 A CN104807681 A CN 104807681A
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Abstract
An automatic vacuum degassing instrument for coal bed gas or shale gas and a corresponding vacuum degassing method are provided, wherein the degassing instrument specifically comprises: the device comprises a coal bed gas or shale gas sample placing device, a gas collecting chamber, a gas mixing chamber, a water pump processing device, a gas collecting system, a vacuum processing device, a pressure sensor, a first electrode device, a temperature sensor and a second electrode device, wherein the pressure sensor, the first electrode device and the temperature sensor are communicated with the inside of the gas collecting chamber; respectively with above-mentioned coal bed gas or shale gas sample placement equipment, the gas collection room, the gas mixing room, water pump treatment facility, gas collection system, the first control valve to the ninth control valve that vacuum treatment facility links to each other, and controlgear, can realize the automatic vacuum degassing to coal bed gas or shale gas and the automatic collection of gas, whether complete accurate judgement to coal bed gas or shale gas sample gas analysis, moreover, the steam generator is simple in structure, and the operation is simple and convenient, the gas tightness and the analytic gas volume of degasser have been promoted, the accuracy of gas composition detection data.
Description
Technical field
The present invention relates to coal-seam gas or shale gas processing technology field, in particular, the present invention relates to a kind of coal-seam gas or shale gas automatic vacuum degassing instrument and corresponding vacuum outgas method.
Background technology
Need extensively to use sample gas to carry out experiment Analysis in the Vacuum Degassing Process of coal-seam gas/shale gas and gas, at present, known standard GB/T/T23249-2009 " survey coal seam gas-bearing capacity assay method in period ", industry standard AQ1046-2007 " survey coal seam gas-bearing capacity assay method in period " recommend a kind of vacuum degasification instrument, this vacuum degasification instrument is the device that glassware is connected with emulsion tube, but there is following shortcoming:
First, this vacuum degasification instrument whole gas collection process need: normal temperature is degassed, heat de-airing to have limit liquid container in, then transfer to limit liquid buret with a scale in gas and vapor permeation is even, and read gas volume by buret scale; This process need notes the position limiting liquid at any time, prevents limiting the drained rear gas of liquid and runs out of, therefore need frequent switch valve, transferred to by the gas collected in buret below and mix; Operating process is loaded down with trivial details, gas and vapor permeation is uneven, whether gas resolves completely larger by man's activity.
Secondly, there is gas leak phenomenon in this device, causes the gas flow collected to be inaccurate often.
Summary of the invention
The technical matters that the present invention solves is to provide a kind of coal-seam gas or shale gas automatic vacuum degassing instrument and corresponding vacuum outgas method, can control realization vacuum outgas automatically, and impermeability is good.
In order to solve the problems of the technologies described above, the present invention by the following technical solutions:
A kind of coal-seam gas or shale gas automatic vacuum degassing instrument, it comprises:
Coal-seam gas or shale gas sample place apparatus, gas collection chamber, gas mixer chamber, water pump treatment facility, gas gathering system, vacuum treatment device and the pressure transducer, the first electrode equipment and the temperature sensor that are communicated with this gas collection chamber interior, the second electrode equipment be communicated with this gas and vapor permeation chamber interior;
This vacuum treatment device is provided with the first operation valve, this gas gathering system is provided with the second operation valve, this gas mixer chamber air inlet/outlet is provided with the 3rd operation valve, this gas collection chamber gas outlet is provided with the 4th operation valve, air intake opening is provided with the 5th operation valve, this gas collection chamber's water inlet is provided with the 6th operation valve, this gas mixer chamber intake-outlet is respectively arranged with the 7th operation valve and the 8th operation valve, this first operation valve is connected with the 9th operation valve to the 4th operation valve simultaneously, 9th operation valve communicates with air, 5th operation valve is connected with the sample pot in this coal-seam gas or shale gas sample place apparatus simultaneously, 6th operation valve is connected with this water pump treatment facility simultaneously, 7th operation valve is also connected with this water pump treatment facility with the 8th operation valve simultaneously,
In addition, also comprise opertaing device, with this water pump treatment facility, this vacuum treatment device is connected, and respectively with above-mentioned first operation valve to the 9th operation valve and and pressure transducer, first electrode equipment, second electrode equipment is connected with temperature sensor, this opertaing device has detection analytical equipment and control treatment device, this detection analytical equipment is according to pressure transducer, the testing result of the first electrode equipment and temperature sensor carries out analyzing the pressure determining this gas collection chamber, liquid level and gas temperature change and change according to the liquid level of the testing result determination gas mixer chamber of the second electrode equipment, this control treatment device is according to the analysis result detecting analytical equipment, to control in described first operation valve to the 9th operation valve corresponding operation valve and vacuum treatment device and water pump treatment facility to open or close and vacuumize to carry out gas collection chamber, gas mixer chamber fills water and gas is collected by gas collection chamber, the calibrating gas that gas collection chamber collects is transferred to gas gathering system or the portion gas that gas collection chamber collects is transferred to gas mixer chamber and the calibrating gas that gas mixer chamber is collected is transferred to gas gathering system.
Wherein, also there is gas filter between sample pot and the 5th operation valve in described coal-seam gas or shale gas sample place apparatus.
Wherein, described first operation valve is electrically-controlled valve or pneumatic valve to the 9th operation valve.
Wherein, coal-seam gas or shale gas sample place apparatus are well heater.
Wherein, vacuum treatment device comprises: the drying tower be connected with the first operation valve, and the vacuum pump be connected with described drying tower.
Wherein, water pump treatment facility comprises: the pump equipment be connected with the 7th operation valve with the 6th operation valve and the saturated brine be connected with described pump equipment.
Correspondingly, the present invention is a kind of realizes coal-seam gas or the degassed method of shale gas automatic vacuum, and it comprises:
Whether a1, opertaing device detect gas collection indoor by the first electrode equipment has water, and testing result be gas collection chamber have water time control the water emptying of gas collection indoor.
A2, opertaing device control unlatching water pump, the 7th operation valve, the 3rd operation valve, the 9th operation valve are closed after gas and vapor permeation indoor are filled water;
A3, opertaing device control unlatching first operation valve, the 4th operation valve, vacuum pump, after indoor for gas collection vacuum tightness is extracted into setting value, close the first operation valve, the 4th operation valve and vacuum pump;
A4, opertaing device control unlatching the 5th operation valve and carry out gas collection;
Whether by the changing value in the pressure transducer fixed time, a5, opertaing device judge that gas is resolved completes;
A6, after gas collection completes, the pressure that opertaing device detects according to pressure transducer judges, when pressure reading is lower than set pressure, be judged to be that this gas collection reaches requirement, record the gas volume collected, control closedown the 5th operation valve, open water pump, 6th operation valve, 4th operation valve, second operation valve carries out gas collection, saturated brine is drawn in gas collection chamber by the 6th operation valve by water pump, the gas collected in gas collection chamber transfers to gas gathering system by the 4th operation valve and the second operation valve, close all by-pass valve controls after the transfer is complete.
Wherein, also can comprise after step a6:
A7, unlatching the 9th operation valve communicate with air, and the saturated brine of gas collection indoor is all discharged all by-pass valve controls of rear closedown by unlatching the 4th operation valve and the 6th operation valve.
Wherein, according to the pressure that pressure transducer detects in step a6, when opertaing device judge pressure reading higher than set pressure and collect do not complete time, control closedown the 5th operation valve, record gas volume, then the 8th operation valve is opened, 3rd operation valve, 4th operation valve, 6th operation valve and water pump, saturated brine is extracted into gas collection indoor by water pump, the gas collected in gas collection chamber transfers to gas mixer chamber through the 4th operation valve and the 3rd operation valve, the water of gas mixer chamber is by the corresponding discharge of the 8th operation valve, the gas collected in gas collection chamber is the most at last transferred in gas mixer chamber,
Then opertaing device controls unlatching first operation valve, the 4th operation valve, vacuum pump, after again indoor for gas collection vacuum tightness being extracted into setting value, closes the first operation valve, the 4th operation valve and vacuum pump;
Opertaing device controls unlatching the 5th operation valve and proceeds gas collection, after collection completes, record gas volume, open the 8th operation valve, the 3rd operation valve, the 4th operation valve, the 6th operation valve and water pump, the gas of gas collection indoor is all transferred to gas mixer chamber, then closes all by-pass valve controls and water pump;
Opertaing device controls to open water pump, the 7th operation valve, the 3rd operation valve, the second operation valve, and the gas of gas mixer chamber is transferred to gas gathering system through the 3rd operation valve, the second operation valve.
Wherein, also comprise before step a4 and equipment is hunted leak, if equipment is air tight after waiting for certain hour, just gas collection chamber's air intake opening is connected with sample pot through gas filter.
Compared with prior art, the present invention has following beneficial effect:
Coal-seam gas of the present invention or shale gas automatic vacuum degassing instrument and corresponding vacuum outgas method, this vacuum degasification instrument comprises: coal-seam gas or shale gas sample place apparatus, gas collection chamber, gas mixer chamber, water pump treatment facility, gas gathering system, vacuum treatment device and the pressure transducer, the first electrode equipment and the temperature sensor that are communicated with this gas collection chamber interior, the second electrode equipment be communicated with this gas and vapor permeation chamber interior, respectively with above-mentioned coal-seam gas or shale gas sample place apparatus, gas collection chamber, gas mixer chamber, water pump treatment facility, gas gathering system, the first operation valve that vacuum treatment device is connected is to the 9th operation valve, and opertaing device, to control in described first operation valve to the 9th operation valve corresponding operation valve and vacuum treatment device and water pump treatment facility and open or close and vacuumize to carry out gas collection chamber, gas mixer chamber fills water and gas is collected by gas collection chamber, the calibrating gas that gas collection chamber collects is transferred to gas gathering system or the portion gas that gas collection chamber collects is transferred to gas mixer chamber and the calibrating gas that gas mixer chamber is collected is transferred to gas gathering system, thus can realize automatic collection that is degassed to the automatic vacuum of coal-seam gas or shale gas and gas, whether resolve coal-seam gas or shale gas sample gas and accurately judge completely, structure is simple, easy and simple to handle, improve impermeability and the resolution gas body volume of degassing instrument, the accuracy of gas composition composition detection data.
Simultaneously, detect the air pressure of gas collection indoor by pressure transducer and then achieve and automatically judge whether gas has collected the automatic calculating with collected volume, substitute current artificial judgement and read volume by buret, and metallic conduit when various piece connects in vacuum degasification instrument of the present invention, can be adopted to weld the mode be connected with emulsion tube with the glass tube that taper sealing substitutes existing apparatus, effectively can improve sealing.
Accompanying drawing explanation
Fig. 1 is a kind of specific embodiment structural representation of coal-seam gas of the present invention or shale gas automatic vacuum degassing instrument;
Fig. 2 is a kind of example structure schematic diagram of opertaing device in coal-seam gas of the present invention or shale gas automatic vacuum degassing instrument.
Embodiment
With reference to figure 1, the coal-seam gas of the present embodiment or shale gas automatic vacuum degassing instrument, mainly comprise:
Coal-seam gas or shale gas sample place apparatus, coal-seam gas described in the present embodiment or shale gas sample place apparatus are well heater 10, described well heater can be such as water-bath, the sample pot 11 preserving coal-seam gas or shale gas sample is placed in water-bath, in addition, the present embodiment also comprises gas collection chamber 13, gas mixer chamber 14, water pump treatment facility 15, gas gathering system 16, vacuum treatment device 17 and the pressure transducer 19 be communicated with this gas collection chamber 13 inside, for being distributed in the electrode at gas collection chamber 13 top and bottom in first electrode equipment 20(the present embodiment) and temperature sensor 21, for being distributed in the electrode at gas mixer chamber 13 top and bottom in the second electrode equipment 22(the present embodiment be communicated with this gas mixer chamber 14 inside),
This vacuum treatment device 17 is provided with the first operation valve 1, this gas gathering system 16 is provided with the second operation valve 2, this gas mixer chamber 14 air inlet/outlet is provided with the 3rd operation valve 3, this gas collection chamber 13 gas outlet is provided with the 4th operation valve 4, air intake opening is provided with the 5th operation valve 5, this gas collection chamber 13 water inlet is provided with the 6th operation valve 6, this gas mixer chamber 14 intake-outlet is provided with the 7th operation valve 7 and the 8th operation valve 8, this first operation valve 1 is connected with the 9th operation valve 9 to the 4th operation valve 4 simultaneously, 9th operation valve 9 communicates with air, 5th operation valve 5 is connected with the sample pot 11 in this coal-seam gas or shale gas sample place apparatus 10 simultaneously, 6th operation valve 6 is connected with this water pump treatment facility 15 simultaneously, 7th operation valve 7 is also connected with this water pump treatment facility 15 with the 8th operation valve 8 simultaneously, during specific implementation, the first operation valve 1-the 9th operation valve 9 need can realize automatically controlling, and therefore can adopt the operation valve of various ways, such as, as specific embodiment, described first operation valve 1 can be electrically-controlled valve or pneumatic valve to the 9th operation valve 9, repeats no more here.
In addition, for realizing automatic control, this enforcement realizes the degassed equipment of automatic vacuum and also includes opertaing device 18, this opertaing device 18 and this water pump treatment facility 15, this vacuum treatment device 17 is connected, in addition also respectively with above-mentioned first operation valve 1 to the 9th operation valve 9 and with pressure transducer 19, first electrode equipment 20, second electrode equipment 22 is connected with temperature sensor 21, with reference to figure 2, as a specific embodiment, this opertaing device 18 has detection analytical equipment 181 and control treatment device 182, this detection analytical equipment 181 is according to pressure transducer 19, the testing result of the first electrode equipment 20 and temperature sensor 21 carries out analyzing the pressure determining this gas collection chamber 13, liquid level and gas temperature change and change according to the liquid level of the testing result determination gas mixer chamber 14 of the second electrode equipment 22, this control treatment device 182 is according to the analysis result detecting analytical equipment 181, to control in described first operation valve 1 to the 9th operation valve 9 corresponding operation valve and vacuum treatment device 17 and water pump treatment facility 15 to open or close to carry out gas collection chamber 13 and vacuumize, gas mixer chamber 14 fills water and gas is collected by gas collection chamber 13, the calibrating gas that gas collection chamber 13 collects is transferred to gas gathering system 16 or the portion gas that gas collection chamber 13 collects is transferred to gas mixer chamber 14 and the calibrating gas that gas mixer chamber 14 is collected is transferred to gas gathering system 16 etc.
In addition, impurity may be mixed with from sample pot 11 gas out, need to filter gas useless impurity is filtered, for this reason, gas filter 12 also can be set in the present embodiment between sample pot 11 and the 5th operation valve 5 to filter from sample pot 10 gas out, repeat no more here.
Needs illustrate, the effect of water pump treatment facility 15 mainly realizes water to be extracted in gas collection chamber 13 or gas mixer chamber 14, as a specific embodiment, water pump treatment facility 15 of the present invention can comprise: the pump equipment 151 be connected with the 7th operation valve 7 with the 6th operation valve 6 and the saturated brine 152 be connected with described pump equipment 151, during specific implementation, saturated brine 152 is placed by container, saturated brine can not dissolve with the gaseous sample collected to adopt saturated brine to be in the present embodiment, be convenient to the collection operation of gas, repeat no more here.
In addition, for vacuum treatment device 17, mainly gas collection chamber 13 is vacuumized, owing to moisture may be contained in gas, therefore, in the present embodiment, for vacuum treatment device 17, can also gas drying apparatus be set, as a specific embodiment, vacuum treatment device 17 mainly comprises the drying tower 171 be connected with the first operation valve 1 and the vacuum pump 172 be connected with described drying tower 171, and the principle of drying tower and vacuum pump and structure all can utilize existing equipment, repeat no more here.
Illustrate that the present invention realizes the method for vacuum outgas with a specific embodiment below.
First, in step S1, the electrode of the first electrode equipment 20 can detect the liquid level of gas collection chamber 13, therefore, detect in gas collection chamber 13 whether have water by the first electrode equipment 20 further, testing result passes to opertaing device 18, and by analysis, opertaing device 18 can control to carry out next step operation, such as, as being that gas collection chamber 13 has water then can control the water emptying in gas collection chamber 13 according to detecting the analysis result of data.
Step S2, opertaing device 18 control unlatching water pump 151, the 7th operation valve 7, the 3rd operation valve 3, the 9th operation valve 9 are closed after filling water in gas mixer chamber 14.
Step S3, opertaing device 18 controls unlatching first operation valve the 1, the 4th operation valve 4, vacuum pump 172, after vacuum tightness is extracted into setting value in gas collection chamber 13, closes the first operation valve 1, the 4th operation valve 4 and vacuum pump 172.
Step S4, hunts leak to equipment, if equipment is air tight after waiting for certain hour, is then connected with sample pot 11 through gas filter 12 by gas collection chamber 13 air intake opening.
Step S5, opertaing device 18 controls unlatching the 5th operation valve 5 and carries out gas collection, in order to judge whether gas has been collected, whether by the changing value in the pressure transducer fixed time, opertaing device judges that gas is resolved completes, and such as, can set in the present embodiment and be judged to be that gas collection completes when every gas amount gushed for 30 minutes is less than 10ml.
Step S6, after gas collection completes, the pressure that opertaing device 18 detects according to pressure transducer 19 judges, when pressure reading is lower than set pressure, be judged to be that 1 gas collection reaches requirement, record the gas volume collected, control closedown the 5th operation valve 5, open water pump 151, 6th operation valve 6, 4th operation valve 4, second operation valve 2 carries out gas collection, namely saturated brine is drawn in gas collection chamber 13 by the 6th operation valve 6 by water pump 151, the gas collected in gas collection chamber 13 transfers to gas gathering system 16 by the 4th operation valve 4 and the second operation valve 2, all by-pass valve controls are closed after gas collection completes, then in step S7, open the 9th operation valve 9 to communicate with air, open the 4th operation valve 4 and the water in gas collection chamber 13 is all discharged all valves of rear closedown by the 6th operation valve 6.
In addition, for other situation, such as, in step S8, according to the pressure that pressure transducer 19 detects, when opertaing device 18 judge pressure reading higher than set pressure and collect do not complete time, control closedown the 5th operation valve 5, record gas volume, then the 8th operation valve 8 is opened, 3rd operation valve 3, 4th operation valve 4, 6th operation valve 6 and water pump 151, gas in gas collection chamber 13 is all transferred to gas mixer chamber 14, then all valves and water pump is closed, namely saturated brine is extracted in gas collection chamber 13 by water pump 151, the gas collected in gas collection chamber 13 transfers to gas mixer chamber 14 by the 4th operation valve 4 and the 3rd operation valve 3, the water of gas mixer chamber 14 is discharged by the 8th operation valve 8, the gas collected in gas collection chamber 13 is the most at last transferred in gas mixer chamber 14.
Then in step S9, opertaing device 18 controls unlatching first operation valve the 1, the 4th operation valve 4, vacuum pump 171, again by after vacuum tightness is extracted into setting value in gas collection chamber 13, closes the first operation valve 1, the 4th operation valve 4 and vacuum pump 171.
Step S10, opertaing device 18 controls unlatching the 5th operation valve 5 and proceeds gas collection, after collection completes, record gas volume, open the 8th operation valve 8, the 3rd operation valve 3, the 4th operation valve 4, the 6th operation valve 6 and water pump 151, gas in gas collection chamber 13 is all transferred to gas mixer chamber 14, then closes all by-pass valve controls and water pump 151.
Step S11, opertaing device 18 controls to open water pump 151, the 7th operation valve 7, the 3rd operation valve 3, second operation valve 2, carry out gas collection, namely saturated brine is extracted in gas mixer chamber 14 through the 7th operation valve 7 by water pump 151, the gas collected in gas mixer chamber 14 is transferred in gas gathering system 16 by the 3rd operation valve 3 and the second operation valve 2, after gas collection completes, open water pump 151 and all by-pass valve controls.
Step S12, open the 9th operation valve 9, the 4th operation valve 4, the 3rd operation valve 3, the 6th operation valve 6, the 7th operation valve 7, the 8th operation valve 8, water in gas collection chamber 13 and gas mixer chamber 14 is all discharged all by-pass valve controls of rear closedown, wherein whether there is water to detect by the second electrode equipment 22 for gas mixer chamber 14, repeat no more here.
Needs illustrate, metallic conduit can be adopted to weld the mode be connected with emulsion tube with the glass tube that taper sealing substitutes prior art, thus improve the impermeability of device in above-described embodiment between each several part; In addition, adopt pressure transducer can realize judging whether gas has collected the automatic calculating with collected volume, substitute current artificial judgement and read volume by buret; And whole gas collection process is run automatically by each operation valve control realization, substitute and at present do not stop switch valve by people and achieve gas collection.
Although preferred embodiment of the present invention has disclosed as above, the present invention has been not limited to above-described embodiment, any those skilled in the art, not departing from the scope disclosed by the present invention, when doing a little change and adjustment.
Claims (10)
1. coal-seam gas or a shale gas automatic vacuum degassing instrument, is characterized in that, comprising:
Coal-seam gas or shale gas sample place apparatus, gas collection chamber, gas mixer chamber, water pump treatment facility, gas gathering system, vacuum treatment device and the pressure transducer, the first electrode equipment and the temperature sensor that are communicated with this gas collection chamber interior, the second electrode equipment be communicated with this gas and vapor permeation chamber interior;
This vacuum treatment device is provided with the first operation valve, this gas gathering system is provided with the second operation valve, this gas mixer chamber air inlet/outlet is provided with the 3rd operation valve, this gas collection chamber gas outlet is provided with the 4th operation valve, air intake opening is provided with the 5th operation valve, this gas collection chamber's water inlet is provided with the 6th operation valve, this gas mixer chamber intake-outlet is respectively arranged with the 7th operation valve and the 8th operation valve, this first operation valve is connected with the 9th operation valve to the 4th operation valve simultaneously, 9th operation valve communicates with air, 5th operation valve is connected with the sample pot in this coal-seam gas or shale gas sample place apparatus simultaneously, 6th operation valve is connected with this water pump treatment facility simultaneously, 7th operation valve is also connected with this water pump treatment facility with the 8th operation valve simultaneously,
In addition, also comprise opertaing device, with this water pump treatment facility, this vacuum treatment device is connected, and respectively with above-mentioned first operation valve to the 9th operation valve and and pressure transducer, first electrode equipment, second electrode equipment is connected with temperature sensor, this opertaing device has detection analytical equipment and control treatment device, this detection analytical equipment is according to pressure transducer, the testing result of the first electrode equipment and temperature sensor carries out analyzing the pressure determining this gas collection chamber, liquid level and gas temperature change and change according to the liquid level of the testing result determination gas mixer chamber of the second electrode equipment, this control treatment device is according to the analysis result detecting analytical equipment, to control in described first operation valve to the 9th operation valve corresponding operation valve and vacuum treatment device and water pump treatment facility to open or close and vacuumize to carry out gas collection chamber, gas mixer chamber fills water and gas is collected by gas collection chamber, the calibrating gas that gas collection chamber collects is transferred to gas gathering system or the portion gas that gas collection chamber collects is transferred to gas mixer chamber and the calibrating gas that gas mixer chamber is collected is transferred to gas gathering system.
2. degassing instrument according to claim 1, is characterized in that, is also provided with gas filter in described coal-seam gas or shale gas sample place apparatus between sample pot and the 5th operation valve.
3. degassing instrument according to claim 1, is characterized in that, described first operation valve is electrically-controlled valve or pneumatic valve to the 9th operation valve.
4. degassing instrument according to claim 1, is characterized in that, coal-seam gas or shale gas sample place apparatus are well heater.
5. degassing instrument according to claim 1, is characterized in that, vacuum treatment device comprises: the drying tower be connected with described first operation valve and the vacuum pump be connected with described drying tower.
6. degassing instrument according to claim 1, is characterized in that, water pump treatment facility comprises: the pump equipment be connected with described 7th operation valve with described 6th operation valve and the saturated brine be connected with described pump equipment.
7. realize coal-seam gas or the degassed method of shale gas automatic vacuum, it is characterized in that, comprising:
Whether a1, opertaing device detect gas collection indoor by the first electrode equipment has water, and testing result be gas collection chamber have water time control the water emptying of gas collection indoor;
A2, opertaing device control unlatching water pump, the 7th operation valve, the 3rd operation valve, the 9th operation valve are closed after gas and vapor permeation indoor are filled water;
A3, opertaing device control unlatching first operation valve, the 4th operation valve, vacuum pump, after indoor for gas collection vacuum tightness is extracted into setting value, close the first operation valve, the 4th operation valve and vacuum pump;
A4, opertaing device control unlatching the 5th operation valve and carry out gas collection;
Whether by the changing value in the pressure transducer fixed time, a5, opertaing device judge that gas is resolved completes;
A6, after gas collection completes, the pressure that opertaing device detects according to pressure transducer judges, when pressure reading is lower than set pressure, be judged to be that this gas collection reaches requirement, record the gas volume collected, control closedown the 5th operation valve, open water pump, 6th operation valve, 4th operation valve, second operation valve carries out gas collection, saturated brine is drawn in gas collection chamber by the 6th operation valve by water pump, the gas collected in gas collection chamber transfers to gas gathering system by the 4th operation valve and the second operation valve, close all by-pass valve controls after the transfer is complete.
8. method according to claim 7, is characterized in that, also comprises after step a6:
A7, unlatching the 9th operation valve communicate with air, and the saturated brine of gas collection indoor is all discharged all by-pass valve controls of rear closedown by unlatching the 4th operation valve and the 6th operation valve.
9. method according to claim 7, it is characterized in that, according to the pressure that pressure transducer detects in step a6, when opertaing device judge pressure reading higher than set pressure and collect do not complete time, control closedown the 5th operation valve, record gas volume, then the 8th operation valve is opened, 3rd operation valve, 4th operation valve, 6th operation valve and water pump, saturated brine is extracted into gas collection indoor by water pump, the gas collected in gas collection chamber transfers to gas mixer chamber through the 4th operation valve and the 3rd operation valve, the water of gas mixer chamber is by the corresponding discharge of the 8th operation valve, the gas collected in gas collection chamber is the most at last transferred in gas mixer chamber,
Then opertaing device controls unlatching first operation valve, the 4th operation valve, vacuum pump, after again indoor for gas collection vacuum tightness being extracted into setting value, closes the first operation valve, the 4th operation valve and vacuum pump;
Opertaing device controls unlatching the 5th operation valve and proceeds gas collection, after collection completes, record gas volume, open the 8th operation valve, the 3rd operation valve, the 4th operation valve, the 6th operation valve and water pump, the gas of gas collection indoor is all transferred to gas mixer chamber, then closes all by-pass valve controls and water pump;
Opertaing device controls to open water pump, the 7th operation valve, the 3rd operation valve, the second operation valve, and the gas of gas mixer chamber is transferred to gas gathering system through the 3rd operation valve, the second operation valve.
10. method according to claim 7, is characterized in that, also comprises and hunt leak to equipment before step a4, if equipment is air tight after waiting for certain hour, is just connected with sample pot through gas filter by gas collection chamber's air intake opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410036180.9A CN104807681B (en) | 2014-01-24 | 2014-01-24 | Automatic vacuum degassing instrument for coal bed gas or shale gas and corresponding vacuum degassing method |
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| CN201410036180.9A CN104807681B (en) | 2014-01-24 | 2014-01-24 | Automatic vacuum degassing instrument for coal bed gas or shale gas and corresponding vacuum degassing method |
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| CN104807681B CN104807681B (en) | 2019-07-16 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107192786A (en) * | 2017-07-04 | 2017-09-22 | 国家地质实验测试中心 | The enrichment preparation facilities and its method of gas in a kind of water body |
| CN108693068A (en) * | 2018-05-07 | 2018-10-23 | 中国石油大学(北京) | A kind of simulator and method that shale gas is lost |
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| JP2010279871A (en) * | 2009-06-03 | 2010-12-16 | Aisin Aw Co Ltd | Method and apparatus for recovering solution component, and system for impregnation and recovering impregnated component |
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| CN103033442A (en) * | 2012-12-20 | 2013-04-10 | 河南理工大学 | Gas adsorption and desorption test apparatus |
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| CN103063545A (en) * | 2012-12-28 | 2013-04-24 | 恒泰尚合能源技术（北京）有限公司 | Novel shale gas content tester and shale gas content detecting method |
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| CN107192786A (en) * | 2017-07-04 | 2017-09-22 | 国家地质实验测试中心 | The enrichment preparation facilities and its method of gas in a kind of water body |
| CN108693068A (en) * | 2018-05-07 | 2018-10-23 | 中国石油大学(北京) | A kind of simulator and method that shale gas is lost |
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