CN201740717U - Desorbing character test tank for water injection coal sample under pressure condition - Google Patents
Desorbing character test tank for water injection coal sample under pressure condition Download PDFInfo
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- CN201740717U CN201740717U CN2010202958991U CN201020295899U CN201740717U CN 201740717 U CN201740717 U CN 201740717U CN 2010202958991 U CN2010202958991 U CN 2010202958991U CN 201020295899 U CN201020295899 U CN 201020295899U CN 201740717 U CN201740717 U CN 201740717U
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- water injection
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- oil pressure
- coal sample
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Abstract
The utility model discloses a desorbing character test tank for a water injection coal sample under a pressure condition, comprising an upper flange disc, an oil pressure connecting pipe, an oil pressure piston, a fastening nut, a double-end bolt, a water injection pipe, a tank body, a lower support screw, a lower flange disc, an air inlet pipe and an air outlet pipe, wherein the upper flange disc is fixed on the upper part of the tank body through the fastening nut and the double-end bolt; the lower flange disc is fixed on the lower part of the tank body through the lower support screw; the upper part in the tank body is provided with the oil pressure piston; a hydraulic cavity is formed between the upper end of the oil pressure piston and the upper flange disc; one side of the hydraulic cavity is provided with the oil pressure connecting pipe; the center of the lower flange disc is vertically fixed with the water injection pipe; and the air inlet pipe and air outlet pipe are respectively fixed beside the water injection pipe. The desorbing character test tank is featured with reliable performance, is flexible and convenient, and can more accurately simulate the desorbing character of the testing coal to the gas.
Description
Technical field:
The utility model belongs to the mine gas prevention and control technical field, is specifically related to a kind of water filling coal sample desorption properties experimental tank under the press strip spare of covering.
Background technology:
Coal is an important process of mine gas prevention and control technical field to the isothermal desorption experiment of gas, and traditional experimental technique is to adopt particulate coal to replace raw coal to experimentize.But, because the coal seam buried depth can reach more than the km, be subjected to the action of gravity of superincumbent stratum, it is very big to the influence of aspects such as the hole characteristic in coal seam and perviousness to cover pressure, thereby, adopt the experimental result of particulate coal to replace raw coal can produce bigger experimental error, particularly in the research field of coal seam water infusion to the desorption of mash gas influence, aqueous water in the coal body can produce gas and suppress the desorb effect, and this depression effect and coal body hole have much relations to the acting force between the moisture, at this moment, the pressure of superincumbent stratum is exactly the factor that must consider when research coal body desorption of mash gas characteristic.At present, adopt the mode that experimentizes on being placed between the large-scale rock pressure machine to coal sample, still, because the limitation of aspects such as experiment condition restriction, the constant temperature requirement of experiment coal sample and sealing requirements is difficult to apply; On the other hand, can not satisfy extensively carrying out of the water filling coal sample desorption properties experimental study work under the press strip spare covered.
The utility model content:
Purpose of the present utility model is to overcome above-mentioned defective, a kind of dependable performance is provided, flexible covers water filling coal sample desorption properties experimental tank under the press strip spare.
In order to realize above-mentioned purpose, the utility model comprises: upper flange plate, the oil pressure connecting pipe, hydraulic piston, clamp nut, stud bolt, water injection pipe, tank body, the lower support screw, lower flange, draft tube, escape pipe, utilize clamp nut and stud bolt that upper flange plate is fixed on tank body top, utilize the lower support screw that lower flange is fixed on the tank body bottom, be provided with hydraulic piston at the tank body internal upper part, form hydraulic cavities between hydraulic piston upper end and the upper flange plate, hydraulic cavities one side is provided with the oil pressure connecting pipe, vertically be set with water injection pipe at the lower flange center, be set with draft tube and escape pipe respectively on the water injection pipe next door.
For the sealing property that guarantees hydraulic piston and prevent to scratch the hydraulic piston surface, affiliated hydraulic piston outside is with dust-proof seal ring.
In order to guarantee the sealing property of upper flange plate, lower flange and tank body, be respectively arranged with the O RunddichtringO between upper flange plate and the tank body and between lower flange and the tank body.
Like this, when utilizing the utility model to do experiment, open clamp nut, upper flange plate and tank body are broken away from, in tank body, add the experiment coal sample, clean out O RunddichtringO and contact site thereof, cover upper flange plate, tighten the clamp nut at stud bolt two ends, connect manual oil pressure pump high-pressure hose to the oil pressure connecting pipe, connect the desorption experiment pipeline to draft tube, escape pipe, connect high pressure water-injection pump, can cover under the press strip spare coal the various desorption experiment of gas to water injection pipe.Equipment performance is reliable, convenient, flexible, can realize that the simulation test coal is to the desorption properties of gas more accurately, overcome simultaneously and adopted the drawback that rock pressure machine pressuring method system is huge, constant temperature is difficult to realize, coal sample is covered the pressure accurate measurement, and the coal sample jar is reusable, provides a kind of experimental provision more easily for covering coal under the press strip spare to the high pressure desorption experiment of gas.
Description of drawings:
Below in conjunction with accompanying drawing the utility model is described in further detail.
Fig. 1 is a cross-sectional view of the present utility model.
Number in the figure title: 1-upper flange plate; The 2-hydraulic cavities; 3-oil pressure connecting pipe; The 4-hydraulic piston; The 5-clamp nut; The 6-dust-proof seal ring; The 7-O RunddichtringO; The 8-stud bolt; The 9-spring washer; The 10-plain washer; 11-tests coal sample; The 12-water injection pipe; The 13-tank body; 14-lower support screw; The 15-lower flange; 16-measures air chamber; 17-packoff I; 18-packoff II; The 19-draft tube; The 20-escape pipe.
Embodiment:
As shown in Figure 1, of the present utility model comprising: upper flange plate 1, oil pressure connecting pipe 3, hydraulic piston 4, clamp nut 5, stud bolt 8, water injection pipe 12, tank body 13, lower support screw 14, lower flange 15, draft tube 19, escape pipe 20.Utilize clamp nut 5 and stud bolt 8 that upper flange plate 1 is fixed on tank body 13 tops, on stud bolt 8, be with spring washer 9 and plain washer 10, guarantee the firm reliability of clamp nut.Utilize lower support screw 14 that lower flange 15 is fixed on tank body 13 bottoms, be provided with hydraulic piston 4 at the tank body internal upper part, the hydraulic piston outside is with dust-proof seal ring 6, form hydraulic cavities 2 between hydraulic piston 4 upper ends and the upper flange plate 1, hydraulic cavities one side is provided with oil pressure connecting pipe 3, be used to inject high-pressure and hydraulic oil, hydraulic piston and inner tank wall face are for closely cooperating, and actuating medium is a specific hydraulic fluid.The space that hydraulic piston 4 lower ends and lower flange 15 form is used for placing test coal sample 11, transmits pressure by hydraulic piston to the experiment coal sample.Vertically be set with water injection pipe 12 at lower flange 15 centers, be set with draft tube 19 and escape pipe 20 respectively on the water injection pipe next door, respectively as the air intake opening and the gas outlet of experimental tank, escape pipe top connects measures air chamber 16, to avoid line clogging.Packoff I 17 is set around draft tube 19, packoff II 18 is set around escape pipe 20, to guarantee the sealing property of draft tube, escape pipe and lower flange.In order to guarantee the sealing property of upper flange plate, lower flange and tank body, be respectively arranged with O RunddichtringO 7 between upper flange plate and the tank body and between lower flange and the tank body.The big I of specification of the present utility model is made series of products as required.
Claims (3)
1. one kind covers water filling coal sample desorption properties experimental tank under the press strip spare, comprise: upper flange plate (1), oil pressure connecting pipe (3), hydraulic piston (4), clamp nut (5), stud bolt (8), water injection pipe (12), tank body (13), lower support screw (14), lower flange (15), draft tube (19), escape pipe (20), it is characterized in that utilizing clamp nut (5) and stud bolt (8) that upper flange plate (1) is fixed on tank body (13) top, utilize lower support screw (15) that lower flange is fixed on the tank body bottom, be provided with hydraulic piston (4) at tank body (13) internal upper part, form hydraulic cavities (2) between hydraulic piston upper end and the upper flange plate, hydraulic cavities one side is provided with oil pressure connecting pipe (3), vertically be set with water injection pipe (12) at the lower flange center, be set with draft tube (19) and escape pipe (20) respectively on the water injection pipe next door.
2. according to claim 1ly cover water filling coal sample desorption properties experimental tank under the press strip spare, hydraulic piston (4) outside under it is characterized in that is with dust-proof seal ring (6).
3. according to claim 1ly cover water filling coal sample desorption properties experimental tank under the press strip spare, it is characterized in that being respectively arranged with O RunddichtringO (7) between upper flange plate and the tank body and between lower flange and the tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202958991U CN201740717U (en) | 2010-08-18 | 2010-08-18 | Desorbing character test tank for water injection coal sample under pressure condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202958991U CN201740717U (en) | 2010-08-18 | 2010-08-18 | Desorbing character test tank for water injection coal sample under pressure condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201740717U true CN201740717U (en) | 2011-02-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202958991U Expired - Fee Related CN201740717U (en) | 2010-08-18 | 2010-08-18 | Desorbing character test tank for water injection coal sample under pressure condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201740717U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998204A (en) * | 2012-12-20 | 2013-03-27 | 中国矿业大学 | Device and method for preparing water-containing coal sample and testing adsorption |
| CN103743634A (en) * | 2014-01-24 | 2014-04-23 | 重庆大学 | Fluid structure interaction coal rock shear-seepage test fluid pressure loading shear box |
| CN103776979A (en) * | 2014-01-10 | 2014-05-07 | 河南理工大学 | Simulation test method and device for inhibiting methane desorption effect by coal seam water injection |
| RU2533562C1 (en) * | 2013-07-16 | 2014-11-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Surfactant selection method for wetting of hard coals using permeability coefficient |
| CN104697838A (en) * | 2015-03-27 | 2015-06-10 | 河南理工大学 | Coal sample water injection device for simulating high-pressure water injection at coal mine site in laboratory |
| CN105203427A (en) * | 2015-09-18 | 2015-12-30 | 河南理工大学 | Gas-instant-desorption testing device and method |
| CN105891045A (en) * | 2016-06-12 | 2016-08-24 | 河南理工大学 | Water adding method and device for gas containing coal in isobaric mode |
| CN108107115A (en) * | 2018-01-30 | 2018-06-01 | 辽宁工程技术大学 | A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig |
| CN105910974B (en) * | 2016-06-12 | 2018-10-02 | 河南理工大学 | A kind of experimental method and device of test coal seam with gas equipressure imbibition effect |
-
2010
- 2010-08-18 CN CN2010202958991U patent/CN201740717U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102998204B (en) * | 2012-12-20 | 2015-01-21 | 中国矿业大学 | Device and method for preparing water-containing coal sample and testing adsorption |
| CN102998204A (en) * | 2012-12-20 | 2013-03-27 | 中国矿业大学 | Device and method for preparing water-containing coal sample and testing adsorption |
| RU2533562C1 (en) * | 2013-07-16 | 2014-11-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Кузбасский государственный технический университет имени Т.Ф. Горбачева" (КузГТУ) | Surfactant selection method for wetting of hard coals using permeability coefficient |
| CN103776979B (en) * | 2014-01-10 | 2016-02-24 | 河南理工大学 | A kind of coal seam water infusion suppresses analog detection method and the device of desorption of mash gas effect |
| CN103776979A (en) * | 2014-01-10 | 2014-05-07 | 河南理工大学 | Simulation test method and device for inhibiting methane desorption effect by coal seam water injection |
| CN103743634A (en) * | 2014-01-24 | 2014-04-23 | 重庆大学 | Fluid structure interaction coal rock shear-seepage test fluid pressure loading shear box |
| CN104697838B (en) * | 2015-03-27 | 2017-09-05 | 河南理工大学 | A kind of coal sample water filling device of laboratory simulation colliery scene high pressure water injection |
| CN104697838A (en) * | 2015-03-27 | 2015-06-10 | 河南理工大学 | Coal sample water injection device for simulating high-pressure water injection at coal mine site in laboratory |
| CN105203427A (en) * | 2015-09-18 | 2015-12-30 | 河南理工大学 | Gas-instant-desorption testing device and method |
| CN105891045A (en) * | 2016-06-12 | 2016-08-24 | 河南理工大学 | Water adding method and device for gas containing coal in isobaric mode |
| CN105910974B (en) * | 2016-06-12 | 2018-10-02 | 河南理工大学 | A kind of experimental method and device of test coal seam with gas equipressure imbibition effect |
| CN105891045B (en) * | 2016-06-12 | 2019-02-22 | 河南理工大学 | A kind of coal containing methane gas equipressure adds the method and apparatus of water |
| CN108107115A (en) * | 2018-01-30 | 2018-06-01 | 辽宁工程技术大学 | A kind of high pressure resistant coal petrography absorption damage deformation-acoustic-electric combined monitoring experimental rig |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20110818 |