CN208833619U - It is a kind of based in seal chamber continuously plus release gas experimental rig - Google Patents
It is a kind of based in seal chamber continuously plus release gas experimental rig Download PDFInfo
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- CN208833619U CN208833619U CN201821522691.1U CN201821522691U CN208833619U CN 208833619 U CN208833619 U CN 208833619U CN 201821522691 U CN201821522691 U CN 201821522691U CN 208833619 U CN208833619 U CN 208833619U
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Abstract
The utility model discloses a kind of based on the gas experimental rig for continuously adding release in seal chamber, which includes seal cavity plus discharge mechanism, gas for giving control system, gas flow dynamic monitoring and data collection system；The seal cavity is a round outside but spuare inside column structure, and one cube of intracoelomic cavity is dug inside cylindrical body, is made of a cube intracoelomic cavity, sealing cover, air inlet, gas outlet, oil inlet, oil return opening, steel plate bed course；Described plus discharge mechanism is made of electric-controlled hydraulic pumping plant, oil pipe, elastic hydraulic oil pocket, changes coal body pressure by controlling to elastic hydraulic oil pocket fuel delivery；The gas is connected for giving control system, gas flow dynamic monitoring system and the air inlet of seal cavity, gas outlet by steel gas pipeline；When the utility model analog coal body ambient pressure changes, internal structure change situation and Gas Flow characteristic provide theory support for mine protective coat extracted and raising pressure relief gas pumping mining efficiency.
Description
Technical field
The utility model relates to mine protective coat extracteds and gas drainage technical field.
Background technique
The most of coal seams in China have the characteristics that poor air permeability, gas pressure are lower, coal seam is strong to gas adsorption ability,
The difficult larger and inefficiency of direct draining coal seam gas in the lower situation of coal seam permeability.Coal seam pressure is to influence coal seam hole
The major reason of gap cranny development and permeability height.Currently, acting on primitive coalbed by release by external power effect
And change coal body internal void fissured structure, improving coal seam permeability is to solve gas to threaten and improve having for gas drainage efficiency
One of efficacious prescriptions method.But the effect of gas pressure device to hole gap cranny development is also very important inside coal body, after coal seam pressure relief,
Under gas pressure effect, hole crack will expand deformation, and then influence Gas Flow.Previous laboratory gas tests dress
The Gas Flow inside when can not achieve simulation coal body pressure change is set, coal body pressure and gas pressure coupling can not be also simulated
Gas Flow feature under effect.Circulation plus release condition can be not only provided for coal body therefore, it is necessary to a kind of, but also can be provided not
With the experimental rig of mash gas balancing pressure, realize between coal body internal pressure, coal gas pressure, coal gas flowing three
The research of relationship ensures mine peace to provide theoretical foundation for mine protective coat extracted and raising pressure relief gas pumping mining efficiency
Overall height effect production.
Summary of the invention
Coal body pressure and gas can not be simulated by having gas experimental rig the purpose of the utility model is to overcome laboratory
When pressure change inside coal body Gas Flow deficiency, provide in a kind of seal chamber continuously plus the gas experimental rig of release,
Realize the simulation and experimental study influenced when coal body pressure and gas pressure variation on coal body inside Gas Flow.
To achieve the goals above, the technical solution adopted in the utility model is as follows:
It is a kind of based in seal chamber continuously plus the gas experimental rig of release, including seal cavity, plus discharge mechanism, gas
For giving control system, gas flow dynamic monitoring and data collection system；The seal cavity is a round outside but spuare inside cylinder knot
Structure digs one cube of intracoelomic cavity in column body；Described plus discharge mechanism is by electric-controlled hydraulic pumping plant, oil pipe, elastic hydraulic oil pocket group
At；The gas is for giving the air inlet of control system, gas flow dynamic monitoring and data collection system and seal cavity, going out
Port is tightly connected by steel gas pipeline.
The seal cavity is by a cube intracoelomic cavity, sealing cover, air inlet, gas outlet, oil inlet, oil return opening, steel plate bed course
Composition, described cube of intracoelomic cavity are used to coal dust being pressed into lump coal sample；Air inlet and air outlet are respectively placed in a seal cavity left side
Right monosymmetric center, oil inlet and oil return opening are placed in the symmetrical center in seal cavity front and rear sides；The steel
Plate bed course is placed in inner cavity above coal dust, makes coal dust uniform force by bed course.
Described plus discharge mechanism is made of electric-controlled hydraulic pumping plant, oil pipe, elastic hydraulic oil pocket, and elastic hydraulic oil pocket is located at block
Oil inlet, the oil return opening of coal sample center, oil pipe and seal cavity are tightly connected, and pass through how much achievable companies of control fuel delivery
Continuous circulation adjusts pressure value, and pressure is passed to lump coal sample by elastic hydraulic oil pocket and is held, it can be achieved that changing lump coal sample
By pressure.
The gas includes that high pressure gas tank, pressure regulator valve, steel gas pipeline, gas pipeline are opened for giving control system
It closes, be serially connected between all parts by steel gas pipeline and be connected and sealed with the air inlet of seal cavity.
The gas flow dynamic monitoring and data collection system include delicate flow meter, data acquisition computer, gas
Pressure gauge, steel gas pipeline are serially connected between all parts by steel gas pipeline, and with seal cavity gas outlet into
Row is tightly connected, and data acquisition computer is connected with delicate flow meter by USB interface.
The beneficial functions effect of the utility model:
1. having sealing screw thread and seal washer on the inside of the utility model sealing cover, can be tightly connected with cavity, sealing side
Formula is simple and good airproof performance；Steel plate bed course is close to guarantee lump coal sample uniform stressed below sealing cover and above lump coal sample；Into
Port is connected at gas outlet, oil inlet and oil return opening by sealing thread seal, and sealant is broken on the outside of interface, is sealed
It works well；Inner wall is equipped with combination metallic sieve, it can be achieved that the face of lump coal sample is ventilated at seal cavity air inlet and air outlet
Function.
2. the utility model can by adding discharge mechanism, continuously recycle lump coal sample is carried out plus release and can perseverance
Fixed is maintained at a certain pressure value, realizes the analog simulation for adding release situation to the coal seam in mine actual production.
3. the utility model uses gas flow dynamic monitoring and data collection system, can real-time dynamic monitoring lump coal sample
The changes in flow rate of gas, data acquisition is convenient, high degree of automation.
4. the utility model can calculate the deformation of lump coal sample by the volume change of spherical shaped elastomeric hydraulic fluid chamber
Amount can be used for Study on Coal stressor layer, gas pressure, the coupled relation between hole crack.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram based on the gas experimental rig for continuously adding release in seal chamber of the utility model
Fig. 2 is seal cavity and the structural schematic diagram for adding discharge mechanism in Fig. 1
Fig. 3 is cavity sealing cover and seal cavity top view in Fig. 1
In figure: 1- high pressure gas tank；2- pressure regulator valve；3- steel gas pipeline；4A- gas pipeline switch；4B- air inlet is opened
It closes；The gas outlet 4C- switch；5- gas pressure table；6- delicate flow meter；7- air inlet；8- seal cavity；9- lump coal sample；
10- elastic hydraulic oil pocket；11- combines metallic sieve；The gas outlet 12-；13A, 13B, 13C- seal screw thread；14- seal washer；
15- steel plate bed course；16- sealing cover；17- data acquisition computer；18- electric-controlled hydraulic pumping plant；19- oil inlet pipe；20- oil return pipe；
21- oil inlet；22- oil return opening；23- hydraulic oil；24- cubes of intracoelomic cavity.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is further described.
As shown in Figure 1, Figure 2 and Figure 3, a kind of based on the gas experimental rig for continuously adding release in seal chamber, including sealing
Cavity plus discharge mechanism, gas are for giving control system, gas flow dynamic monitoring and data collection system.The seal chamber
Body 8 is a round outside but spuare inside column structure；Described plus discharge mechanism is by electric-controlled hydraulic pumping plant 18, oil inlet pipe 19, oil return pipe 20, bullet
Property hydraulic fluid chamber 10 form；The gas supplies to give the air inlet of control system, gas flow dynamic monitoring system and seal cavity
Mouth 7, gas outlet 12 pass through steel gas pipeline 3 and are tightly connected.
The seal cavity 8 be a round outside but spuare inside column structure, seal cavity 8 include cube intracoelomic cavity 24, air inlet 7,
Gas outlet 12, steel plate bed course 15, sealing cover 16, oil inlet 21, oil return opening 22.12 interface steel of the air inlet 7 and gas outlet
Gas pipeline processed is provided with sealing screw thread 13A, is tightly connected after swathing certain thickness raw material band with air inlet 7, gas outlet 12, and
Sealant sealing is played on the outside of interface, sealing effect is good；It is oily inside and outside the oil inlet 21, oil return opening 22 and seal cavity
Pipe plays sealant sealing by sealing screw thread 13C connection on the outside of interface, and sealing effect is good；Described cube of intracoelomic cavity
Coal dust is placed in 24, steel plate bed course 15 is placed on coal dust, by applying certain time constant pressure on 15 top of steel plate bed course,
Coal dust is made into lump coal sample 9；Sealing cover 8 and seal cavity 16 are connected by sealing screw thread 13B and the connection sealing of seal washer 14
It connects；The seal cavity air inlet 7,12 inner wall of gas outlet are equipped with combination metallic sieve 11, it can be achieved that the face of lump coal sample is ventilated
Effect.
The gas is located on the left of seal cavity for giving control system, including high pressure gas tank 1, pressure regulator valve 2, steel watt
This pipeline 3, gas pipeline switch 4A are serially connected between all parts by steel gas pipeline 3, and with seal cavity air inlet
Mouth 7 is tightly connected, and lump coal sample 9 in gas flow and the seal cavity in steel gas pipeline 3 is controlled by pressure regulator valve 2
Gas adsorption balance pressure.
Described plus discharge mechanism includes electric-controlled hydraulic pumping plant 18, oil inlet pipe 19, oil return pipe 20, elastic hydraulic oil pocket 10, is led to
Cross hydraulic oil 23 in control elastic hydraulic oil pocket 10 number control output pressure, pressure is passed by elastic hydraulic oil pocket 10
Lump coal sample 9 is passed, the oil pipe end inside and outside oil inlet 21, oil return opening 22 and seal cavity is provided with sealing screw thread 13C,
The tubing seal of oil inlet 21, oil return opening 22 with inside and outside can be made to connect, break sealant on the outside of interface, sealing effect is good
It is good.When test, first coal dust is placed in cube intracoelomic cavity 24, then steel plate bed course 15 is covered and is pressed on coal dust, by steel
15 top of plate bed course applies certain time constant pressure (pressure applied and oil pressure value one in elastic hydraulic oil pocket 10 at this time
Cause), coal dust is pressed into lump coal sample 9, finally connect sealing cover 16 with seal cavity 8.
The gas flow dynamic monitoring and data collection system are located at left and right sides of seal cavity, including steel gas pipe
Road 3, gas pressure table 5, delicate flow meter 6, data acquisition computer 17 pass through 3 phase of steel gas pipeline between all parts
Mutually series connection, and be connected and sealed with seal cavity gas outlet 12, data acquisition computer 17 and delicate flow meter 6 pass through USB
Connector connection, can real-time monitoring record flow through the gas pressure of lump coal sample, gas in steel gas pipeline and seal cavity
Flow and gas flow speed changing value.
Claims (6)
1. it is a kind of based in seal chamber continuously plus release gas experimental rig, wherein the experimental rig include seal cavity,
Add discharge mechanism, gas for giving control system, gas flow dynamic monitoring and data collection system；The seal cavity is one
Round outside but spuare inside column structure digs one cube of intracoelomic cavity inside cylindrical body；Described plus discharge mechanism is by electric-controlled hydraulic pumping plant, oil
Pipe, elastic hydraulic oil pocket composition；The gas is for giving control system, gas flow dynamic monitoring and data collection system and close
Seal the air inlet of cavity, gas outlet is tightly connected by steel gas pipeline.
2. a kind of based on the gas experimental rig for continuously adding release in seal chamber according to claim 1, it is characterised in that: institute
Stating seal cavity includes cube intracoelomic cavity, sealing cover, air inlet, gas outlet, oil inlet, oil return opening, steel plate bed course；Air inlet and
Gas outlet is respectively placed in the medianly zygomorphic center of seal cavity, and oil inlet and oil return opening are placed in two before and after seal cavity
The symmetrical center in side；The metal mat is placed on coal dust top；It is provided with sealing screw thread on the inside of the sealing cover and is equipped with close
Seal washer.
3. a kind of based on the gas experimental rig for continuously adding release in seal chamber according to claim 1, it is characterised in that: institute
It states plus discharge mechanism, elastic hydraulic oil pocket is an elastic sphere, be placed in coal body center, each component is logical at oil inlet and oil return opening
It crosses sealing to be threadedly coupled, breaks sealant on the outside of interface.
4. a kind of based on the gas experimental rig for continuously adding release in seal chamber according to claim 1, it is characterised in that: institute
It includes high pressure gas tank, pressure regulator valve, steel gas pipeline, gas pipeline switch, all parts that gas, which is stated, for giving control system
Between be serially connected by steel gas pipeline, and with seal cavity air inlet be tightly connected.
5. according to claim 1 a kind of based on the gas experimental rig for continuously adding release in seal chamber, it is characterised in that:
The seal cavity air inlet is equipped with inner wall at gas outlet combines metallic sieve.
6. according to claim 1 a kind of based on the gas experimental rig for continuously adding release in seal chamber, it is characterised in that:
The gas flow dynamic monitoring and data collection system are located at left and right sides of seal cavity, including steel gas pipeline, gas
Pressure gauge, delicate flow meter, data acquisition computer are serially connected between all parts by steel gas pipeline, and with it is close
Envelope cavity gas outlet is connected and sealed, and data acquisition computer is connected with delicate flow meter by USB interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821522691.1U CN208833619U (en) | 2018-09-18 | 2018-09-18 | It is a kind of based in seal chamber continuously plus release gas experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821522691.1U CN208833619U (en) | 2018-09-18 | 2018-09-18 | It is a kind of based in seal chamber continuously plus release gas experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208833619U true CN208833619U (en) | 2019-05-07 |
Family
ID=66313726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821522691.1U Expired - Fee Related CN208833619U (en) | 2018-09-18 | 2018-09-18 | It is a kind of based in seal chamber continuously plus release gas experimental rig |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208833619U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918337A (en) * | 2018-09-18 | 2018-11-30 | 中国矿业大学(北京) | It is a kind of based in seal chamber continuously plus release gas experimental rig and test method |
| CN111524438A (en) * | 2020-05-22 | 2020-08-11 | 福州大学 | Multi-dimensional concentration field construction experimental device and method for roadway gas emission |
-
2018
- 2018-09-18 CN CN201821522691.1U patent/CN208833619U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918337A (en) * | 2018-09-18 | 2018-11-30 | 中国矿业大学(北京) | It is a kind of based in seal chamber continuously plus release gas experimental rig and test method |
| CN111524438A (en) * | 2020-05-22 | 2020-08-11 | 福州大学 | Multi-dimensional concentration field construction experimental device and method for roadway gas emission |
| CN111524438B (en) * | 2020-05-22 | 2022-03-22 | 福州大学 | Multi-dimensional concentration field construction experimental device and method for roadway gas emission |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20190918 |
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| CF01 | Termination of patent right due to non-payment of annual fee |