CN107269256A - Wellhead assembly is filled in underground coal gasification(UCG) - Google Patents
Wellhead assembly is filled in underground coal gasification(UCG) Download PDFInfo
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- CN107269256A CN107269256A CN201710666956.9A CN201710666956A CN107269256A CN 107269256 A CN107269256 A CN 107269256A CN 201710666956 A CN201710666956 A CN 201710666956A CN 107269256 A CN107269256 A CN 107269256A
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- injection device
- injection
- flow
- filled
- gasification furnace
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- 238000002309 gasification Methods 0.000 title claims abstract description 107
- 239000003245 coal Substances 0.000 title claims abstract description 47
- 238000002347 injection Methods 0.000 claims abstract description 139
- 239000007924 injection Substances 0.000 claims abstract description 139
- 239000003034 coal gas Substances 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 11
- 238000007664 blowing Methods 0.000 claims description 10
- 210000000664 rectum Anatomy 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 10
- 230000008859 change Effects 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 26
- 238000000034 method Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000001174 ascending effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/295—Gasification of minerals, e.g. for producing mixtures of combustible gases
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
- Solid-Fuel Combustion (AREA)
Abstract
Wellhead assembly is filled the invention provides a kind of underground coal gasification(UCG).The device includes：First injection device, the second injection device and air delivery device；Wherein, the first injection device is connected with gasification furnace；Second injection device is connected with the first injection device, for injecting filled media into gasification furnace by the first injection device；Air delivery device is connected with the first injection device, for injecting gasifying agent by the first injection device output coal gas or into gasification furnace.In the present invention, second injection device and air delivery device are connected by the first injection device with gasification furnace, second injection device can inject venthole from filled media to gasification furnace or air admission hole, air delivery device can be injected in gasification furnace by the coal gas output in gasification furnace or by gasifying agent, coal underground gasifying technology is realized to carry out while normally operation is filled with well head, and then the normal table operation of gasification furnace is ensure that, so that the component of outlet coal gas will not change a lot.
Description
Technical field
The present invention relates to Coal Gasification Technology field, wellhead assembly is filled in particular to a kind of underground coal gasification(UCG).
Background technology
Coal underground gasification technology be it is a kind of the coal for being imbedded in underground is burnt, and the heat effect and change for passing through coal
Act on, and produces the process of fuel gas.Coal underground gasification technology, which mines traditional physics, is changed into chemical coal mining, instead of
Traditional shaft building, coal mining, ground gasification, have the advantages that good security, small investment, high efficiency, pollution are few.
The principal element of the restriction extensive industrialization of underground coal gasification(UCG) is the stabilization for being difficult to keep outlet gas composition.I.e.
With the continuous progress of gasification reaction, burned out area is increasing, and the strata pressure that roof is subject to is also increasing, when the pressure
Power to a certain extent when, roof will be collapsed, and the water in stratum will be entered in gasification furnace, the pollutant in gasification furnace
Will polluted underground water, while also the component of outlet coal gas can be made to change a lot, in addition can prevent gasification reaction from after
It is continuous to carry out.Therefore, when roof collapses, it is necessary to be filled in time to well head, but now, underground coal gasification(UCG) work
Skill may be currently running, and current, well head can not be filled when technique is normally run.
The content of the invention
In consideration of it, the present invention proposes a kind of underground coal gasification(UCG) filling wellhead assembly, it is intended to which solution at present can not be in coal
The problem of charcoal process for underground gasification is filled when normally running to well head.
On one side, the present invention proposes a kind of underground coal gasification(UCG) filling wellhead assembly.The device includes：First injection
Device, the second injection device and air delivery device；Wherein, the first injection device is connected with gasification furnace；Second injection device and
One injection device is connected, for injecting filled media into gasification furnace by the first injection device；Air delivery device and the first note
Enter device to be connected, for injecting gasifying agent by the first injection device output coal gas or into gasification furnace.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, the second injection device includes：First injection bucket and
Second injection bucket；Wherein, the first injection bucket is connected by the first flow in pipes with the second injection bucket, the second injection bucket and first
Injection device is connected；First flow in pipes, which is provided with, is connected with logical exhausting pipeline and the first equalizing main, first
Equalizing main is connected by the first injection device with gasification furnace.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, the first flow in pipes is provided with the first valve, puts
The equal position in position that the position and the first equalizing main that vacant duct is connected with the first flow in pipes are connected with the first flow in pipes
Between the first valve and the second injection bucket.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, the volume of the second injection bucket is more than or equal to first
Inject the volume of bucket.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, air delivery device includes：Temperature detector, flow
Detector and first pressure detector；Wherein, temperature detector, flow detector and first pressure detector may be contained within gas transmission
Pipeline；The first end of gas pipeline is connected with the first injection device or the second end of gas pipeline is connected with the first injection device
It is logical.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, gas pipeline includes：First appendix and second
Appendix；Wherein, the first end of the first appendix is connected with the first blowing mouth of flow detector, and the first of the second appendix
End is connected with the second blowing mouth of flow detector；Second end of the first appendix is connected or second with the first injection device
Second end of appendix is connected with the first injection device；Temperature detector is arranged at the first appendix, first pressure detection dress
Install and be placed in the second appendix.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, the second end and the first gas transmission of the first appendix
The distance between mouth is more than or equal to 10 times of the latus rectum of the first appendix.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, the second end and the second gas transmission of the second appendix
The distance between mouth is more than or equal to 20 times of the latus rectum of the second appendix.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, the first injection device includes：Second ascending pipe
Road, the second equalizing main and second pressure detector；Wherein, the first end of the second flow in pipes is connected with the second injection bucket,
Second end of the second flow in pipes is connected as in gasification furnace and with gasification furnace；The first end of second equalizing main and the second note
Enter pipeline to be connected, the second end of the second equalizing main is connected with the first equalizing main；Second pressure detector is arranged at
Two flow in pipes.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, the second flow in pipes is provided with the second valve, the
The position that the first end of two equalizing mains is connected with the second flow in pipes is located between the second valve and gasification furnace.
Further, in above-mentioned underground coal gasification(UCG) filling wellhead assembly, second pressure detector and the second flow in pipes
The position being connected is located between the position that is connected with the second flow in pipes of first end of the second equalizing main and gasification furnace.
In the present invention, the second injection device and air delivery device are connected by the first injection device with gasification furnace, and second
Injection device can inject venthole from filled media to gasification furnace or air admission hole, and air delivery device can be by the coal gas in gasification furnace
Output injects gasifying agent in gasification furnace, and this allows the filling of medium and the conveying of gas while carrying out, you can with reality
While present coal underground gasifying technology is normally run, well head is filled, and then ensure that the normal table of gasification furnace
Operation, so that the component of outlet coal gas will not change a lot.
Brief description of the drawings
By reading the detailed description of hereafter preferred embodiment, various other advantages and benefit is common for this area
Technical staff will be clear understanding.Accompanying drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And in whole accompanying drawing, identical part is denoted by the same reference numerals.In the accompanying drawings：
Fig. 1 is the structural representation that wellhead assembly is filled in underground coal gasification(UCG) provided in an embodiment of the present invention.
Embodiment
The exemplary embodiment of the disclosure is more fully described below with reference to accompanying drawings.Although showing the disclosure in accompanying drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the disclosure without should be by embodiments set forth here
Limited.On the contrary, these embodiments are provided to facilitate a more thoroughly understanding of the present invention, and can be by the scope of the present disclosure
Complete conveys to those skilled in the art.It should be noted that in the case where not conflicting, embodiment in the present invention and
Feature in embodiment can be mutually combined.Describe the present invention in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Referring to Fig. 1, the preferred structure for the underground coal gasification(UCG) filling wellhead assembly that the present embodiment is provided is shown in figure.Such as
Shown in figure, the device can include：First injection device 1, the injection device 2 of air delivery device 3 and second.
Wherein, the first injection device 1 can be arranged at the top (for Fig. 1) of gasification furnace 4, and with gasification furnace 4
It is connected.When it is implemented, the position of the first injection device 1 and the position of gasification furnace 4 are relatively-stationary, the first injection devices
1 can be connected with the air admission hole of gasification furnace 4, can also be connected with the venthole of gasification furnace 4, specifically can be according to filling
Need to select.
Second injection device 2 can be arranged at the top (for Fig. 1) of the first injection device 1, and with the first note
Enter device 1 and be detachably connected logical, such as bolt connection or flange connection.Second injection device 2 by the first injection device 1 with
Gasification furnace 4 is connected, to inject filled media into gasification furnace 4, that is to say, that be situated between when needing the injection filling into gasification furnace 4
During matter, the second injection device 2 can be installed on to the first injection device 1, and be connected with the first injection device 1；When need not
After into gasification furnace 4, injection filled media or injection are finished, the second injection device 2 can be pulled down, to recycle.It is specific real
Shi Shi, filled media can be slurry.
Air delivery device 3 can be arranged at the side (for Fig. 1) of the first injection device 1, and be filled with the first injection
Put 1 and be detachably connected logical, such as bolt connection or flange connection, to realize the recycling of air delivery device 3.Fill out if desired
What is filled is venthole, then air delivery device 3 can be exported the coal gas produced in gasification furnace 4 by the first injection device 1；If needed
What is filled is air admission hole, then air delivery device 3 can inject gasifying agent by the first injection device 1 into gasification furnace 4.
If it should be noted that gasification furnace has multiple air admission holes and a venthole, the coal that the present embodiment is provided
Underground gasification filling wellhead assembly can only be arranged in air admission hole；If gasification furnace has an air admission hole and multiple ventholes, this
The underground coal gasification(UCG) filling wellhead assembly that embodiment is provided can only be arranged in venthole.
In the present embodiment, the second injection device 2 and air delivery device 3 are connected by the first injection device 1 with gasification furnace 4
Logical, the second injection device 2 can inject venthole from filled media to gasification furnace 4 or air admission hole, and air delivery device 3 will can gasify
Coal gas in stove 4 exports or injects gasifying agent in gasification furnace 4, and this allows the filling of medium and the conveying of gas while entering
OK, you can to realize while coal underground gasifying technology is normally run, well head is filled, and then ensure that gasification furnace
4 normal table operation, so that the component of outlet coal gas will not change a lot.
In above-described embodiment, the second injection device 2 can include：First injection bucket 21 and the second injection bucket 22.Wherein,
One injection bucket 21 is normal pressure bucket, and it can be connected by the first flow in pipes 23 with the second injection bucket 22, the second injection bucket 22
For transformation bucket, the second injection bucket 22 is detachably connected logical, such as bolt connection or flange connection with the first injection device 1.Tool
When body is implemented, the volume of the second injection bucket 22 can be more than or equal to the volume of the first injection bucket 21.Can on first flow in pipes 23
To be provided with the first valve 26, the lower end (for Fig. 1) of the second injection bucket 22 can be provided with the 3rd valve 27, first
Injection device 1 can then be provided with first flange 15 with the positions that are connected of the second injection bucket 22, pass through the 3rd valve 27 and the
One flange 15 is that being detachably connected for the second injection device 2 and the first injection device 1 can be achieved.Set on first flow in pipes 23
Have and be connected with the logical equalizing main 25 of exhausting pipeline 24 and first, when it is implemented, exhausting pipeline 24 and first injects
The position and the first equalizing main 25 that pipeline 23 is connected can be oppositely arranged with the position that the first flow in pipes 23 is connected, and
And, the position and the first equalizing main 25 that exhausting pipeline 24 is connected with the first flow in pipes 23 are connected with the first flow in pipes 23
Logical position can be located between the first valve 26 and the second injection bucket 22.Exhausting pipeline 24 can be provided with atmospheric valve 28.
First equalizing main 25 can be detachably connected logical, such as bolt connection or flange connection with the first injection device 1, so that the
One equalizing main 25 is connected by the first injection device 1 with gasification furnace 4.When it is implemented, the lower end of the first equalizing main 25
(for Fig. 1) can be provided with balance flange 29, the position that the first injection device 1 is connected with the first equalizing main 25
Balanced valve 16 can be then provided with, the first equalizing main 25 and the first injection can be achieved by balance flange 29 and balanced valve 16
Device 1 is detachably connected.
In the present embodiment, by the first equalizing main 25, the pressure of the pressure and the second injection bucket 22 in gasification furnace 4 can be made
Power is the same, so that filled media is smoothly fallen into gasification furnace 4, and now, the second injection bucket 22 has pressure, to ensure the
Filled media in one injection bucket 21 is smoothly fallen into the second injection bucket 22, can be by opening atmospheric valve 28, to release the
Pressure in two injection buckets 22, makes the pressure in the second injection bucket 22 as the pressure in the first injection bucket 21, and then make to fill out
Filling medium smoothly falls.
In above-described embodiment, air delivery device 3 can include：Temperature detector 31, flow detector 32 and first pressure inspection
Survey device 33.Wherein, temperature detector 31, flow detector 32 and first pressure detector 33 can be arranged at gas pipeline
34, to detect the temperature of gas, flow and pressure in gas pipeline 34 respectively.First end (the left side shown in Fig. 1 of gas pipeline 34
End) it is connected with the first injection device 1, or, the second end (right-hand member shown in Fig. 1) and the first injection device of gas pipeline 34
1 is connected.When it is implemented, first pressure detector 33, flow detector 32 and temperature detector 31 can be along gas pipelines
34 the second end to the direction of first end is set gradually, i.e., set gradually along gas transmission direction, that is to say, that when gas pipeline 34 to
In gasification furnace 4 during conveying gasifying agent, then the first end of gas pipeline 34 is connected with the first injection device 1, when gas pipeline 34
During output coal gas, then the second end of gas pipeline 34 is connected with the first injection device 1, to ensure that the gas of conveying first passes through the
One pressure detector 33, and then ensure that the accuracy of pressure detecting.
In above-described embodiment, gas pipeline 34 can include：First appendix 341 and the second appendix 342.Wherein,
The first end (right-hand member shown in Fig. 1) of one appendix 341 can be connected with the first blowing mouth 321 of flow detector 32, the
The first end (left end shown in Fig. 1) of two appendixs 342 can be connected with the second blowing mouth 322 of flow detector 32.The
The second end (left end shown in Fig. 1) of one appendix 341 can be detachably connected with the first injection device 1 it is logical, or, second
The second end (right-hand member shown in Fig. 1) of appendix 342 can be detachably connected logical, such as bolt company with the first injection device 1
Connect or flange connection.When it is implemented, the second end of the first appendix 341 or the second end of the second appendix 342 can be set
Stop valve 35 is equipped with, position or the first injection device that the first injection device 1 is connected with the second end of the first appendix 341
1 position being connected with the second end of the second appendix 342 can then be provided with second flange 17, pass through stop valve 35 and second
Flange 17 be can be achieved the first appendix 341 and the first injection device 1 be detachably connected or realize the second appendix 342 and
First injection device 1 is detachably connected.Temperature detector 31 can be arranged at the first appendix 341, first pressure detector
33 can be arranged at the second appendix 342.Certainly, when it is implemented, temperature detector 31 and first pressure detector 33
To be arranged at the second appendix 342, then the first appendix 341, first pressure detector are arranged at relative to temperature detector 31
33 are arranged at for the situation of the second appendix 342, and the length of the second appendix 342 is accomplished by the longer of design.
In above-described embodiment, the distance between the second end of the first appendix 341 and the first blowing mouth 321 can be more than etc.
In 10 times of the latus rectum of the first appendix 341, the distance between the second end of the second appendix 342 and the second blowing mouth 322 can
With 20 times of the latus rectum more than or equal to the second appendix 342, so that the registration of flow detector 32 is stable, and then ensure gas
Steady conveying.
In above-described embodiment, the first injection device 1 includes：Second flow in pipes 11, the second equalizing main 12 and the second pressure
Force detector 13.Wherein, the first end (upper end shown in Fig. 1) of the second flow in pipes 11 can be detachable with the second injection bucket 22
Ground is connected, such as bolt connection or flange connection.When it is implemented, first flange 15 can be arranged at the second flow in pipes 11
First end.Filled media is filled out as being connected in gasification furnace 4 and with gasification furnace 4 in second end of the second flow in pipes 11
It is charged to gasification furnace 4.The first end (lower end shown in Fig. 1) of second equalizing main 12 can be connected with the second flow in pipes 11,
The second end (upper end shown in Fig. 1) and the lower end of the first equalizing main 25 of second equalizing main 12 are detachably connected logical, example
As bolt connection or flange are connected.When it is implemented, balanced valve 16 can be arranged at the second end of the second equalizing main 12.Second
Pressure detector 13 can be arranged at the second flow in pipes 11, to detect the pressure in the second flow in pipes 11.When it is implemented,
The second valve 14, first end and the phase of the second flow in pipes 11 of the second equalizing main 12 can be provided with second flow in pipes 11
The position of connection can be located between the second valve 14 and gasification furnace 4, second pressure detector 13 and the phase of the second flow in pipes 11
Position and gasification furnace 4 that the first end that the position of connection can be located at the second equalizing main 12 is connected with the second flow in pipes 11
Between.
The course of work of the device so that air delivery device 3 inputs gasifying agent to gasification furnace 4 as an example, will be discussed in detail below：
When coal underground gasifying technology is normally run, balanced valve 16 is closed, and the opposite of balance flange 29 is provided with
Blind plate, the valve 14 of stop valve 35 and second is in open mode, and gasifying agent passes sequentially through the injection device of air delivery device 3 and first
1 enters underground gasification furnace 4, and then is reacted with the coal of underground.
First, all parts of the second injection device 2 are connected into an organic whole according to Fig. 1, when needing to gas
When changing 4 filled media of stove, the valve 14 of stop valve 35 and second is shut, the blind plate on the opposite of balance flange 29 is pulled down, and by second
Injection device 2 is arranged on the first injection device 1, balance flange 29 is fastenedly connected with balanced valve 16, the 3rd valve 27 and the
One flange 15 is fastenedly connected.
Then, the first valve 26 and the 3rd valve 27 are closed, atmospheric valve 28 is opened, adds and sets into the first injection bucket 21
After the filled media of volume, the first valve 26 is opened, filled media is entered in the second injection bucket 22.When filled media is entered completely
Enter after the second injection bucket 22, close the first valve 23 and atmospheric valve 28, then open balanced valve 16, make the pressure of the second injection bucket 22
Power is close with the pressure of underground gasification furnace 4, stablizes and the 3rd valve 27 and the valve of the second valve 14 are opened after 5 minutes, make the second injection
Filled media in bucket 22 enters in underground gasification furnace 4.
Repeat above procedure, it is possible to which filled media is gradually filled into underground gasification furnace 4, wanted until reaching
Ask.Complete after filling task, can first close balanced valve 16, the second valve 14 and stop valve 35, and on the opposite of balance flange 29
Blind plate is installed, then the second injection device 2 is pulled down, so that the well head that other needs are filled is used, while second can be opened
Valve 14 and stop valve 35, to perform other technical process.
If air delivery device 3 export for coal gas, the left and right ends of gas pipeline 34 are exchanged, other operations with
Aforesaid operations are identical, and here is omitted.
To sum up, in the present embodiment, the second injection device and air delivery device are connected by the first injection device with gasification furnace
Logical, the second injection device can inject venthole from filled media to gasification furnace or air admission hole, and air delivery device can be by gasification furnace
Interior coal gas output injects gasifying agent in gasification furnace, and this allows the filling of medium and the conveying of gas while carry out,
It can realize while coal underground gasifying technology is normally run, well head is filled, and then ensure that gasification furnace
Normal table is run, so that the component of outlet coal gas will not change a lot.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (11)
1. wellhead assembly is filled in a kind of underground coal gasification(UCG), it is characterised in that including：First injection device (1), the second injection dress
Put (2) and air delivery device (3)；Wherein,
First injection device (1) is connected with gasification furnace (4)；
Second injection device (2) is connected with first injection device (1), for passing through first injection device
(1) the injection filled media into the gasification furnace (4)；
The air delivery device (3) is connected with first injection device (1), for defeated by first injection device (1)
Go out coal gas or the injection gasifying agent into the gasification furnace (4).
2. wellhead assembly is filled in underground coal gasification(UCG) according to claim 1, it is characterised in that second injection device
(2) include：First injection bucket (21) and the second injection bucket (22)；Wherein,
The first injection bucket (21) is connected by the first flow in pipes (23) with the described second injection bucket (22), and described second
Injection bucket (22) is connected with first injection device (1)；
First flow in pipes (23), which is provided with, is connected with logical exhausting pipeline (24) and the first equalizing main (25),
First equalizing main (25) is connected by first injection device (1) with the gasification furnace (4).
3. wellhead assembly is filled in underground coal gasification(UCG) according to claim 2, it is characterised in that
First flow in pipes (23) is provided with the first valve (26), the exhausting pipeline (24) and first flow in pipes
(23) the equal position in position that the position and first equalizing main (25) being connected are connected with first flow in pipes (23)
Between first valve (26) and the second injection bucket (22).
4. wellhead assembly is filled in underground coal gasification(UCG) according to claim 2, it is characterised in that
The volume of the second injection bucket (22) is more than or equal to the volume of the described first injection bucket (21).
5. wellhead assembly is filled in underground coal gasification(UCG) according to claim 1, it is characterised in that the air delivery device (3)
Including：Temperature detector (31), flow detector (32) and first pressure detector (33)；Wherein,
The temperature detector (31), the flow detector (32) and the first pressure detector (33) may be contained within gas transmission
Pipeline (34)；
The first end of the gas pipeline (34) be connected with first injection device (1) or the gas pipeline (34)
Two ends are connected with first injection device (1).
6. wellhead assembly is filled in underground coal gasification(UCG) according to claim 5, it is characterised in that the gas pipeline (34)
Including：First appendix (341) and the second appendix (342)；Wherein,
The first end of first appendix (341) is connected with the first blowing mouth (321) of the flow detector (32), institute
The first end of the second appendix (342) is stated with the second blowing mouth (322) of the flow detector (32) to be connected；
Second end of first appendix (341) is connected or second appendix with first injection device (1)
(342) the second end is connected with first injection device (1)；
The temperature detector (31) is arranged at first appendix (341), and the first pressure detection means is arranged at institute
State the second appendix (342).
7. wellhead assembly is filled in underground coal gasification(UCG) according to claim 6, it is characterised in that
The distance between second end of first appendix (341) and described first blowing mouth (321) are more than or equal to described the
10 times of the latus rectum of one appendix (341).
8. wellhead assembly is filled in underground coal gasification(UCG) according to claim 6, it is characterised in that
The distance between second end of second appendix (342) and described second blowing mouth (322) are more than or equal to described the
20 times of the latus rectum of two appendixs (342).
9. wellhead assembly is filled in underground coal gasification(UCG) according to claim 2, it is characterised in that first injection device
(1) include：Second flow in pipes (11), the second equalizing main (12) and second pressure detector (13)；Wherein,
The first end of second flow in pipes (11) is connected with the described second injection bucket (22), second flow in pipes
(11) the second end is as being connected in the gasification furnace (4) and with the gasification furnace (4)；
The first end of second equalizing main (12) is connected with second flow in pipes (11), second equalizing main
(12) the second end is connected with first equalizing main (25)；
The second pressure detector (13) is arranged at second flow in pipes (11).
10. wellhead assembly is filled in underground coal gasification(UCG) according to claim 9, it is characterised in that
Second flow in pipes (11) is provided with the second valve (14), the first end of second equalizing main (12) with it is described
The position that second flow in pipes (11) is connected is located between second valve (14) and the gasification furnace (4).
11. wellhead assembly is filled in underground coal gasification(UCG) according to claim 10, it is characterised in that
The position that the second pressure detector (13) is connected with second flow in pipes (11) is located at the described second balance
Between position that the first end of pipeline (12) is connected with second flow in pipes (11) and the gasification furnace (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666956.9A CN107269256B (en) | 2017-08-07 | 2017-08-07 | Underground coal gasification filling wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710666956.9A CN107269256B (en) | 2017-08-07 | 2017-08-07 | Underground coal gasification filling wellhead device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107269256A true CN107269256A (en) | 2017-10-20 |
| CN107269256B CN107269256B (en) | 2023-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710666956.9A Active CN107269256B (en) | 2017-08-07 | 2017-08-07 | Underground coal gasification filling wellhead device |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040163802A1 (en) * | 2003-02-24 | 2004-08-26 | Baugh Benton F. | Multi-channel high pressure swivel |
| CN1982647A (en) * | 2005-12-12 | 2007-06-20 | 中国矿业大学(北京) | Underground coal gasifier with air-lift point separating control and its process |
| CN101315026A (en) * | 2008-07-01 | 2008-12-03 | 李文军 | Underground coal gasification system and producing process |
| JP2010254382A (en) * | 2009-04-21 | 2010-11-11 | Electric Power Dev Co Ltd | Lock hopper apparatus, coal gasification hybrid power generating system and methods for operating therefor |
| CN102748002A (en) * | 2012-07-26 | 2012-10-24 | 新奥气化采煤有限公司 | Method for extinguishing underground gasification furnace of coal |
| CN103277082A (en) * | 2013-06-21 | 2013-09-04 | 北京中矿科能煤炭地下气化技术研究中心 | Gas injection point retreating type coal underground gasification system and process |
| CN103742122A (en) * | 2014-01-28 | 2014-04-23 | 新奥气化采煤有限公司 | Underground coal gasification system and gasification method |
| RU2526953C1 (en) * | 2013-05-31 | 2014-08-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тульский государственный университет" (ТулГУ) | Method of comprehensive development brown coal deposits |
| WO2015070297A1 (en) * | 2013-11-12 | 2015-05-21 | Kovachki Hristo Atanasov | Method and device for single well underground gasification of fossil fuels |
-
2017
- 2017-08-07 CN CN201710666956.9A patent/CN107269256B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040163802A1 (en) * | 2003-02-24 | 2004-08-26 | Baugh Benton F. | Multi-channel high pressure swivel |
| CN1982647A (en) * | 2005-12-12 | 2007-06-20 | 中国矿业大学(北京) | Underground coal gasifier with air-lift point separating control and its process |
| CN101315026A (en) * | 2008-07-01 | 2008-12-03 | 李文军 | Underground coal gasification system and producing process |
| JP2010254382A (en) * | 2009-04-21 | 2010-11-11 | Electric Power Dev Co Ltd | Lock hopper apparatus, coal gasification hybrid power generating system and methods for operating therefor |
| CN102748002A (en) * | 2012-07-26 | 2012-10-24 | 新奥气化采煤有限公司 | Method for extinguishing underground gasification furnace of coal |
| RU2526953C1 (en) * | 2013-05-31 | 2014-08-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Тульский государственный университет" (ТулГУ) | Method of comprehensive development brown coal deposits |
| CN103277082A (en) * | 2013-06-21 | 2013-09-04 | 北京中矿科能煤炭地下气化技术研究中心 | Gas injection point retreating type coal underground gasification system and process |
| WO2015070297A1 (en) * | 2013-11-12 | 2015-05-21 | Kovachki Hristo Atanasov | Method and device for single well underground gasification of fossil fuels |
| CN103742122A (en) * | 2014-01-28 | 2014-04-23 | 新奥气化采煤有限公司 | Underground coal gasification system and gasification method |
Non-Patent Citations (2)
| Title |
|---|
| 杨兰和,梁杰,余力: "煤炭地下气化新工艺的试验研究" * |
| 胡鑫蒙;赵迪斐;郭英海;王雪莲;李刚;: "我国煤炭地下气化技术(UCG)的发展现状与展望――来自首届国际煤炭地下气化技术与产业论坛的信息" * |
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