CN103993873B - Pressure measuring device - Google Patents
Pressure measuring device Download PDFInfo
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- CN103993873B CN103993873B CN201410236156.XA CN201410236156A CN103993873B CN 103993873 B CN103993873 B CN 103993873B CN 201410236156 A CN201410236156 A CN 201410236156A CN 103993873 B CN103993873 B CN 103993873B
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- room
- trapping stage
- flash trapping
- pressure
- pressure gauge
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- 238000000926 separation method Methods 0.000 claims abstract description 41
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000007599 discharging Methods 0.000 claims description 12
- 238000007789 sealing Methods 0.000 abstract description 5
- 238000005192 partition Methods 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 22
- 239000003245 coal Substances 0.000 description 20
- 238000012360 testing method Methods 0.000 description 6
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 208000035475 disorder Diseases 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The invention provides a pressure measuring device which comprises a sealing shell. A partition plate is arranged inside the sealing shell. A cavity inside the sealing shell is partitioned into a first-level separation chamber and a second-level separation chamber through the partition plate. The first-level separation chamber is arranged above the second-level separation chamber. An air inlet is formed in the side face of the first-level separation chamber. A water draining opening is formed in the bottom of the first-level separation chamber. An exhaust opening is formed in the second-level separation chamber. A pressure gauge is connected to the exhaust opening. According to the pressure measuring device, the aim of rapidly and accurately measuring the pressure of coal-seam gas is achieved.
Description
Technical field
The present invention relates to a kind of stress test technology, particularly to a kind of gas pressure measurement device.
Background technology
Within coal mines, coal-bed gas pressure size be assessment Coal Seam Outburst Hazard and one of coal seam gas-bearing capacity important
Index, takes corresponding outburst prevention measures and gas pumping mode according to this index.Therefore, how to accurately measure coal seam actual
Gas pressure size be just particularly important.
At present, the pressure testing method of coal-bed gas pressure is mainly drilled from underworkings and is entered coal seam, in pressure tap
The rigid pressure-measuring pipe of sealing one, directly connects pressure gauge to measure coal-bed gas pressure size on pressure-measuring pipe.
But the coal-bed gas pressure value measured of existing measuring method is the mixed number of water and gas pressure in coal seam, not
It is the actual value of coal-bed gas pressure, thus being unfavorable for assessing coal seam gas-bearing capacity exactly and then taking corresponding prevention to arrange
Apply.
Content of the invention
The present invention provides a kind of pressure gauge it is achieved that accurately and reliably measuring the purpose of gas pressure in coal seam.
The present invention provides a kind of pressure gauge, comprising:
One seal casinghousing, is provided with a dividing plate in described seal casinghousing, described dividing plate is by the internal cavities of described seal casinghousing
It is divided into flash trapping stage room and the second-order separation room；Described flash trapping stage room is placed on described the second-order separation room, a described fraction
One air inlet is set from room side, described flash trapping stage room bottom arranges a discharge outlet, and described the second-order separation room arranges a row
QI KOU, described air vent is connected with pressure gauge.
Pressure gauge as above is it is preferred that the indoor close described exhaust ports of described the second-order separation are arranged
One moisture separator, the vapor that described moisture separator is used in the gas indoor to described the second-order separation filters.
Pressure gauge as above is it is preferred that arrange at least one check valve, described list on described dividing plate
It is used for controlling the gas in described flash trapping stage room to enter described the second-order separation room to valve.
Pressure gauge as above it is preferred that arranging a discharging valve at the discharge outlet of described flash trapping stage room,
Described discharging valve is used for controlling the water after separating in described flash trapping stage room to discharge from described discharge outlet.
Pressure gauge as above it is preferred that described flash trapping stage interior setting one ball float and ball float litter,
Described ball float and ball float litter are used for indicating whether described discharging valve is discharged water.
Pressure gauge as above is it is preferred that also include:
Support base, described support base is used for supporting described flash trapping stage room.
Pressure gauge as above is it is preferred that described exhaust ports arrange a pressure gauge base, described pressure
Table base is used for installing described pressure gauge.
The present invention provides pressure gauge, by by the gas in coal seam through flash trapping stage room and the second-order separation room
Aqueous vapor separates, and makes contained humidity in the methane gas in coal seam separate out, and records the gas pressure after separating, solution through pressure gauge
The technical problem of coal-bed gas pressure cannot accurately be measured in prior art of having determined.
Brief description
In order to be illustrated more clearly that the present invention, inventive embodiments or technical scheme of the prior art, below will be to enforcement
Example or description of the prior art in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description
It is the present invention, some embodiments of invention, for those of ordinary skill in the art, in the premise not paying creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of pressure gauge embodiment one of the present invention；
Fig. 2 is the structural representation of pressure gauge embodiment two of the present invention；
Fig. 3 is the monitoring curve chart that pressure gauge of the present invention measures gas pressure.
Specific embodiment
In the present embodiment, pressure gauge may be mounted in coal mine roadway, can be to Geological Structure in Coal Mine band and top
Base plate methane gas containing water under high pressure measure, and Fig. 1 is the structural representation of pressure gauge embodiment one of the present invention, such as scheme
Shown in 1, pressure gauge includes:
One seal casinghousing 7, is provided with a dividing plate 4 in seal casinghousing 7, wherein, dividing plate 4 can arrange a some holes or gap,
It is easy to gas to pass through, the internal cavities of seal casinghousing 7 are divided into flash trapping stage room 6 and the second-order separation room 3, a fraction by dividing plate 4
It is placed on the second-order separation room 3 from room 6, flash trapping stage room 6 side arranges an air inlet 5, flash trapping stage room 6 bottom arranges a row
The mouth of a river 8, wherein, the position that air inlet 5 is arranged on flash trapping stage room 6 is higher than position on flash trapping stage room 6 for the discharge outlet 8,
Discharge outlet 8 is used for termly the water in flash trapping stage room 6 being discharged, and when needing draining, opens discharge outlet 8, by one-level
Water in separation chamber 6 is discharged, and arranges an air vent 2, wherein, air vent 2 can be arranged on the second-order separation on the second-order separation room 3
The top of room 3, air vent 2 is connected with pressure gauge 1, in the present embodiment, pressure gauge use when, first by pressure measxurement
The discharge outlet 8 of device is closed, and makes a call to a pressure tap in coal seam, the rigid pressure-measuring pipe of sealing one in pressure tap, pressure-measuring pipe with enter
Between QI KOU 5, the oil pipe by six points connects, and the gas (mixed gas of gas and water) in coal seam enters one by air inlet 5
Level separation chamber 6, the liquid water in mixed gas moves downward under gravity and falls into flash trapping stage room 6 bottom, methane gas
Pass through the hole on dividing plate 4 or gap entrance the second-order separation room 3 with the mixed gas of a small amount of water, that is, in flash trapping stage room 6 just
Step separates the mixed gas of methane gas and water in coal seam, and the mixed gas of methane gas and a small amount of water are in the second-order separation room 3
Carry out secondary water edema caused by disorder of QI from the air vent 2 through the second-order separation room 3 for the methane gas after wherein separating flows to pressure gauge 1, passes through
The size of gas pressure measured by pressure gauge 1, and the water after separating flows to the bottom of flash trapping stage room 6 by dividing plate 4, when a fraction
From the water of the bottom of room 6 reach a certain amount of when, open discharge outlet 8, the water of flash trapping stage room 6 bottom discharged, need explanation
It is during each draining, to keep the gas in seal casinghousing 7 not to be discharged, in flash trapping stage room 6, discharge a certain amount of water
When be shut off discharge outlet 8, it is to avoid when the water of flash trapping stage room 6 bottom is all discharged just close discharge outlet 8.
This enforcement provides pressure gauge, by by the gas in coal seam through flash trapping stage room and the second-order separation room
Aqueous vapor separates, and makes contained humidity in the methane gas in coal seam separate out, and records the gas pressure after separating, solution through pressure gauge
The technical problem of coal-bed gas pressure cannot accurately be measured in prior art of having determined.
Fig. 2 is the structural representation of pressure gauge embodiment two of the present invention, on the basis of above-described embodiment, this reality
Apply in example, specifically, the dividing plate 4 between flash trapping stage room 6 and the second-order separation room 3 arranges at least one check valve 12, surveying
During examination, the pressure in flash trapping stage room 6 is more than the pressure of the second-order separation room 3, and then check valve 12 is opened, flash trapping stage room 6
Gas after middle separation enters the second-order separation room 3 through check valve 12, and in the present embodiment, air inlet 5 is arranged on flash trapping stage
Room 6 side upwards, air vent 2 (referring to Fig. 1) is arranged on the top of the second-order separation room 4.
Further, in the second-order separation room 3, a moisture separator 13 is set at air vent 2, moisture separator 13
Structure is generally inside a container, container and arranges related air inlet component, liquid droplet capture component, specifically, moisture separator 13
Structure may refer to existing moisture separator, is not any limitation as in the present embodiment, and on moisture separator 13, setting gas enters
Mouthful and outlet, in the present embodiment, the entrance of moisture separator 13 communicates with the second-order separation room 3, the outlet of moisture separator 13 and
Air vent 2 is connected, and the vapor in gas in the second-order separation room 3 can be filtered by moisture separator 13, needs explanation
It is, moisture content less in the mixed gas in the second-order separation room 3, after the mixed gas in general moisture separator 13 separate, point
The gas separating out flows to pressure gauge 1 from the outlet of moisture separator 13 by air vent 2, and the water isolated falls into moisture separator
13 bottom, can flow in the second-order separation room 3 by the entrance of moisture separator 13, when reaching a certain amount of, check valve 12
It is opened, water flows downwardly into flash trapping stage room 6 bottom, discharges finally by discharge outlet 8.
Further, at the discharge outlet 8 of flash trapping stage room 6 bottom setting, a discharging valve 9 is set, described discharging valve 9 is used for
The water controlling flash trapping stage room 6 bottom is discharged from discharge outlet 8, in this embodiment, arranges a ball float 10 He in flash trapping stage room 6
Ball float litter 11, ball float 10 and ball float litter 11 are used for indicating whether discharging valve 9 is discharged water, specifically, when flash trapping stage room 6
When the water of bottom reaches a certain amount of, ball float 10 can float along ball float litter 11 automatically, and now discharging valve 9 is opened, and water relies on
Self gravitation, discharges from discharge outlet 8, and after the water of flash trapping stage room 6 bottom releases a certain amount of, ball float 10 is slided automatically,
So that discharging valve 9 is automatically switched off, stop discharging water it is ensured that internal ratio anharmonic ratio lighter methane gas stream in flash trapping stage room 6 is not gone out, this
Sample ensures that the tonometric accuracy of methane gas, simultaneously the water in flash trapping stage room 6 also can be automatically drained out it is achieved that from
The dynamic pressure measuring function that discharges water.
Further, in the present embodiment, also include:
Support base 15, support base 15 is used for supporting seal casinghousing 7, in this embodiment, arranges a pressure at air vent 2
Table base 14, pressure gauge base 14 is used for installing pressure gauge 1, it should be noted that pressure gauge 1 is electronic pressure gage, can be by
Data on pressure gauge uploads to ground and is easy to observe at any time.
Further, on the basis of above-described embodiment, in the present embodiment, a diameter of 220mm of flash trapping stage room 6, row
QI KOU 2 arrive check valve 12 vertical dimension be 70mm, air inlet 5 arrive discharge outlet 8 vertical dimension be 355mm.
The pressure gauge that the present embodiment provides does not need power supply to do power, is a kind of pressure of mechanical automatic draining
Force measuring device, and the pressure degree of pressure gauge is at least up to more than 6mpa.
This enforcement provide pressure gauge, by by the gas in coal seam through flash trapping stage room and the second-order separation room
Aqueous vapor separate, make contained humidity in the methane gas in coal seam separate out come, through pressure gauge record separate after gas pressure,
Solve the technical problem that cannot accurately measure coal-bed gas pressure in prior art.
Fig. 3 is the monitoring curve chart that pressure gauge of the present invention measures gas pressure, and described pressure gauge is pacified
It is contained in down-hole 965 meter-gage Dao great lane scene, tested with reference to the using method in above-described embodiment, test result such as Fig. 3 institute
Show, in the test process of several days, the pressure value rising of a little, there is not pressure value during discharging water and reduce and gas leakage
Phenomenon, final pressure value stabilization, in 0.35mpa, is carried out to identical scene using traditional pressure testing method in prior art simultaneously
Pressure measurement, its Pressure maximum value is 0.5mpa, and this pressure is the mixing wastewater with air pressure of pressure measurement in the hole, bigger than the pressure testing method of the present invention
0.15mpa, speculates that this 0.15mpa is the hydraulic pressure in methane gas in coal seam.
Finally it is noted that various embodiments above, only in order to technical scheme to be described, is not intended to limit；To the greatest extent
Pipe has been described in detail to the present invention with reference to foregoing embodiments, it will be understood by those within the art that: its according to
So the technical scheme described in foregoing embodiments can be modified, or wherein some or all of technical characteristic is entered
Row equivalent；And these modifications or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (5)
1. a kind of pressure gauge is it is characterised in that include:
One seal casinghousing, is provided with a dividing plate in described seal casinghousing, the internal cavities of described seal casinghousing are separated by described dividing plate
For flash trapping stage room and the second-order separation room；Described flash trapping stage room is placed under described the second-order separation room, described flash trapping stage room
Side arranges an air inlet, and described flash trapping stage room bottom arranges a discharge outlet, and described the second-order separation room arranges an air vent,
Described air vent is connected with pressure gauge；
Described the second-order separation is indoor to arrange a moisture separator near described exhaust ports, and described moisture separator is used for described
Vapor in the indoor gas of the second-order separation filters；
At least one check valve is arranged on described dividing plate, described check valve is used for controlling the gas in described flash trapping stage room to enter
Described the second-order separation room.
2. device according to claim 1 discharges water it is characterised in that arranging one at the discharge outlet of described flash trapping stage room
Valve, described discharging valve is used for controlling the water after separating in described flash trapping stage room to discharge from described discharge outlet.
3. device according to claim 2 is it is characterised in that described flash trapping stage interior setting one ball float and ball float are slided
Pole, described ball float and ball float litter are used for indicating whether described discharging valve is discharged water.
4. device according to claim 1 is it is characterised in that also include:
Support base, described support base is used for supporting described flash trapping stage room.
5. device according to claim 1 is it is characterised in that described exhaust ports arrange a pressure gauge base, described pressure
Power table base is used for installing described pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236156.XA CN103993873B (en) | 2014-05-29 | 2014-05-29 | Pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410236156.XA CN103993873B (en) | 2014-05-29 | 2014-05-29 | Pressure measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103993873A CN103993873A (en) | 2014-08-20 |
| CN103993873B true CN103993873B (en) | 2017-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410236156.XA Active CN103993873B (en) | 2014-05-29 | 2014-05-29 | Pressure measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN103993873B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219183B (en) * | 2020-01-21 | 2023-07-04 | 中国铁建重工集团股份有限公司 | Water volume and water pressure detection device |
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2014
- 2014-05-29 CN CN201410236156.XA patent/CN103993873B/en active Active
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| WO1998035744A1 (en) * | 1997-02-14 | 1998-08-20 | Hydro Pacific Technologies Inc. | Apparatus and method for removing entrained liquid from gas or air |
| CN101066517A (en) * | 2007-06-05 | 2007-11-07 | 浙江大学 | Gas water separator |
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| CN103993873A (en) | 2014-08-20 |
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Effective date of registration: 20201106 Address after: 232000 Longyan Village neighborhood committee, Dongshan street, tianjia'an District, Huainan City, Anhui Province Patentee after: Xingke Measuring Technology Service Co.,Ltd. of Huainan Mining Group Address before: 232001 Anhui Province, Huainan city tianjia'an district Mountain Road No. 1 Patentee before: HUAINAN MINING INDUSTRY (Group) Co.,Ltd. |
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Effective date of registration: 20221108 Address after: No. 261, Shungeng Middle Road, Huainan, Anhui 232002 Patentee after: Huainan Mining Group Commodity Inspection Co.,Ltd. Address before: Neighborhood Committee of Longyan Village, Dongshan Street, Tianjia'an District, Huainan City, Anhui Province, 232000 Patentee before: Xingke Measuring Technology Service Co.,Ltd. of Huainan Mining Group |