CN206495658U - A kind of colliery hole packer - Google Patents
A kind of colliery hole packer Download PDFInfo
- Publication number
- CN206495658U CN206495658U CN201621463281.5U CN201621463281U CN206495658U CN 206495658 U CN206495658 U CN 206495658U CN 201621463281 U CN201621463281 U CN 201621463281U CN 206495658 U CN206495658 U CN 206495658U
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- Prior art keywords
- pressure
- layer
- bearing
- hole packer
- opening
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Abstract
The utility model discloses a kind of colliery hole packer, the hole packer, which includes being arranged in extraction tube cavity and is that tube wall is passed, to be formed the water injection pipe of opening, the pressure-bearing pipe wrapping up drainage tube and cover opening and pressure-bearing pipe is sealingly fastened in two stirrups of drainage tube in opening both sides；Pressure-bearing pipe is at least containing one layer of rubber layer and one layer of spinning layer of cloth.The utility model is conducive to colloid substance in extraction later stage pressure-bearing stringing as drilling is deformed and when deforming, is remained that pressure-bearing stringing keeps being brought into close contact with drilling wall, is realized the permanent sealing that drills.Molten gel capsules can not also be installed in pressure-bearing stringing simultaneously, i.e., pressure-bearing stringing is propped up using water under high pressure, remain the excellent sealing of drilling.Operation is simple and reliable for the device, and plugging effect is good, significantly reduces the labor intensity of operating personnel, while also solving the solid such as polyurethane sealing material the problem of extraction causes poorly sealed close due to drilling deformation for a period of time.
Description
Technical field
The utility model is related to a kind of hole sealing device of coal mine down-hole drilling sealed-for-life, specifically a kind of colliery
Use hole packer.
Background technology
With the increase of coal mining depth, many collieries all suffer from high gassy and low permeability coal seam gas and are difficult to pre- take out
The problem of, the problem seriously restricts the safety in production in colliery.Gas and outstanding problem during solution pit mining are most
Main means, are exactly using gas pumping.However, during gas pumping, there is also extraction concentration is low, effect
Difference, the various problems such as the duration is short.One of those topmost restraining factors is exactly the sealability of drilling, is directly restricted
The extracting result of drilling.In order to improve the extracting result of drilling, extend the use time of drilling, current China uses most,
Effect the best way is exactly the method for sealing of " a two stifled notes ", and what is generally irrigated between two plugs is cement mortar.Water
Although cement mortar has some strength, because cement has the trend of contraction after solidification, therefore it will be produced at the wall of a borehole
Crack causes gas leakage, is drilled particularly with small inclination, and the contraction of cement is inevitable to produce large fracture in drilling upper wall.In addition,
Mine can generally also use polyurethane sealing of hole, but due to polyurethane self property, sealing of hole for a period of time after, in the presence of ground pressure
Its deformation is may result in, and then loses the close contact in rib, occurs gas leakage, makes borehole failure.Therefore the sealing of hole side commonly used
The defect of the equal various degrees of method, this just makes improvement method for sealing seem very necessary.
The content of the invention
Goal of the invention：In order to overcome the deficiencies in the prior art, the utility model provides a kind of realized to drilling and grown
Long, effectively sealed colliery hole packer.
Technical scheme：To achieve the above object, a kind of colliery hole packer of the present utility model, is installed on drainage tube, its
It is characterised by：The hole packer includes being arranged in extraction tube cavity and is that tube wall passes the water injection pipe to form opening, parcel extraction
Manage and cover the pressure-bearing pipe of the opening and pressure-bearing pipe is sealingly fastened in two stirrups of drainage tube in opening both sides；Institute
Pressure-bearing pipe is stated at least containing one layer of rubber layer and one layer of spinning layer of cloth.
Further optimize as the utility model, the pressure-bearing pipe is respectively rubber layer from inside to outside, spins layer of cloth, through fire-retardant
With the protective layer of antistatic treatment.The protective layer includes but is not limited to the combination of flame retardant rubber and antistatic rubber.
Further, it is described to spin any one that layer of cloth is polyamide fibre, terylene, aramid fiber, or polyamide fibre, terylene, aramid fiber is any
Two or three of blending is made.Spinning layer of cloth is used to control pressure-bearing pipe swelling volume, is ruptured with preventing excessively expansion.
The expandable bladder with water injection pipe open communication is additionally provided between the pressure-bearing pipe and water injection pipe, the expandable bladder fills
It is spherical or annular to be full of under situation.Spherical expandable bladder can be from side expanding support pressure-bearing pipe, and the expandable bladder of annular can
Realize and support from periphery all directions.
Based on preceding solution, expandable bladder can be filled direct by making its internal pressure reach 2M Pa to water injection pipe water filling
Sealed.Because expandable bladder has certain deformability in itself, effective sealing can be realized in their inflated state.
As further optimization of the present utility model, also by the way that expandable bladder is optimized, realize that it is abided by when full
Drilling deformation is followed, keeps pressure-bearing pipe to keep being brought into close contact with drilling wall, so as to realize permanent sealing.In order to realize the purpose,
The expandable bladder is made up of internal layer capsule, molten gel capsules, and being filled between internal layer capsule and molten gel capsules has water-soluble gel.It is described
Check valve is provided with water filling tube opening.
Wherein, the water-soluble gel is to possess larger elastic solvable colloid substance, with good resistance to compression and moisturizing work(
Energy.The current material for meeting aforementioned condition can serve as water-soluble gel.As preferred scheme, the water-soluble gel include but
It is not limited to any one in third solidifying, sodium carboxymethylcellulose, water-soluble pollopas.
Further, the expandable bladder ruptures when internal pressure exceedes first pressure, and the molten solidifying utricule exceedes in internal pressure
Ruptured during second pressure, the Opening pressure of check valve is more than second pressure and more than first pressure.
The method of expandable bladder and hole packer sealing drilling based on foregoing optimization, pressure-bearing pipe internal pressure is filled to water injection pipe
For 2M Pa, wherein, the unidirectional valve opening pressure is 0.3M Pa, and first pressure is 0.5M Pa, and second pressure is 1M Pa.Cause
This, when water injection pipe hydraulic pressure is gradually increasing, first opens check valve, inner layer capsule water filling, broken to internal layer capsule during 0.5M Pa
Split, be sufficiently mixed water and water-soluble gel, then molten gel capsules rupture during to 1M Pa, the mixture of water and gel is filled in holding
In pressure pipe.
Beneficial effect：The utility model is conducive to the colloid substance in extraction later stage pressure-bearing stringing to become as drilling is deformed
During shape, remain that pressure-bearing stringing keeps being brought into close contact with drilling wall, realize the permanent sealing of drilling.Simultaneously in pressure-bearing stringing
Molten gel capsules can not also be installed, i.e., pressure-bearing stringing is propped up using water under high pressure, remain the excellent sealing of drilling.The device is grasped
Make simple and reliable, plugging effect is good, significantly reduce the labor intensity of operating personnel, while also solving the solids such as polyurethane envelope
Porous materials are the problem of extraction causes poorly sealed close due to drilling deformation for a period of time.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment 2.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings.
Embodiment 1
A kind of colliery hole packer, is installed on drainage tube, and the hole packer includes being arranged in extraction tube cavity and is tube wall
The pressure-bearing pipe pass and to form the water injection pipe of opening, wrapping up drainage tube and cover opening and in opening both sides by the pressure-bearing seal of tube
It is fixed on two stirrups of drainage tube；Pressure-bearing pipe is respectively rubber layer from inside to outside, spins layer of cloth, through fire-retardant and antistatic treatment
Protective layer.Protective layer is the combination of flame retardant rubber and antistatic rubber.
Spinning layer of cloth be polyamide fibre, terylene, aramid fiber any one, or polyamide fibre, terylene, aramid fiber any two or three of blending
It is made.Spinning layer of cloth is used to control pressure-bearing pipe swelling volume, is ruptured with preventing excessively expansion.
The expandable bladder with water injection pipe open communication is additionally provided between pressure-bearing pipe and water injection pipe, expandable bladder is filled under situation
For spherical or annular.Spherical expandable bladder can be from side expanding support pressure-bearing pipe, and the expandable bladder of annular can be each from periphery
Realize support in individual direction.
Water injection pipe outer end connects a pressure gauge, and manometric opposite side connects high-pressure water by ball valve.Open ball valve,
I.e. to pressure-bearing pipe water filling.By making its internal pressure reach 2M Pa to water injection pipe water filling, full expandable bladder is directly sealed.By
There is certain deformability in itself in expandable bladder, effective sealing can be realized in their inflated state.
Embodiment 2
As shown in figure 1, a kind of colliery hole packer, is installed on drainage tube 1, the hole packer includes being arranged in drainage tube 1
Chamber is simultaneously that tube wall passes to form the water injection pipe 3 of opening, wrap up drainage tube 1 and cover the pressure-bearing pipe 2 of opening and in opening two
Pressure-bearing pipe 2 is sealingly fastened in two stirrups 7 of drainage tube 1 by side；Pressure-bearing pipe 2 is respectively rubber layer from inside to outside, spins layer of cloth, passes through
The protective layer of fire-retardant and antistatic treatment, protective layer is combined by flame retardant rubber and antistatic rubber.Spinning layer of cloth is polyamide fibre material
Material is made.
The expandable bladder with the open communication of water injection pipe 3 is additionally provided between pressure-bearing pipe 2 and water injection pipe 3, expandable bladder fills shape
It is spherical or annular under condition.The present embodiment is spherical, and spherical expandable bladder can be from side expanding support pressure-bearing pipe 2.Swelling bag
Body is made up of internal layer capsule 5, molten gel capsules 6, and being filled between internal layer capsule 5 and molten gel capsules 6 has water-soluble gel.Water injection pipe 3 is opened
Check valve 4 is provided with mouthful.Water-soluble gel uses sodium carboxymethylcellulose.
Expandable bladder ruptures when internal pressure exceedes first pressure, and molten solidifying utricule ruptures when internal pressure exceedes second pressure, single
It is more than second pressure and more than first pressure to the Opening pressure of valve 4.
As the present embodiment, the outer end of water injection pipe 3 connects a pressure gauge 8, and the opposite side of pressure gauge 8 is connected by ball valve 9
High-pressure water.Ball valve 9 is opened, i.e., to the water filling of pressure-bearing pipe 2.The internal pressure of pressure-bearing pipe 2 is gradually filled to for 2M Pa to water injection pipe 3, its
In, the Opening pressure of check valve 4 is 0.3M Pa, and first pressure is 0.5M Pa, and second pressure is 1M Pa.Therefore, when water injection pipe 3
When hydraulic pressure is gradually increasing, first open check valve 4, the water filling of inner layer capsule 5 ruptures to internal layer capsule 5 during 0.5M Pa, makes water
It is sufficiently mixed with water-soluble gel, then molten gel capsules 6 rupture during to 1M Pa, the mixture of water and gel is filled in pressure-bearing pipe 2
In.
Described above is only preferred embodiment of the present utility model, it should be pointed out that：For the common skill of the art
For art personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and
Retouching also should be regarded as protection domain of the present utility model.
Claims (7)
1. a kind of colliery hole packer, is installed on drainage tube, it is characterised in that：The hole packer includes being arranged in extraction tube cavity simultaneously
Be tube wall pass to form the water injection pipe of opening, the pressure-bearing pipe wrapping up drainage tube and cover the opening and in opening both sides
Pressure-bearing pipe is sealingly fastened in two stirrups of drainage tube；The pressure-bearing pipe is at least containing one layer of rubber layer and one layer of spinning layer of cloth.
2. a kind of colliery hole packer according to claim 1, it is characterised in that：The pressure-bearing pipe is respectively from inside to outside
Rubber layer, spin layer of cloth, through fire-retardant and antistatic treatment protective layer.
3. a kind of colliery hole packer according to claim 2, it is characterised in that：The spinning layer of cloth is polyamide fibre, terylene, virtue
Any one of synthetic fibre, or any two or three of blending of polyamide fibre, terylene, aramid fiber are made.
4. a kind of colliery hole packer according to any one in claims 1 to 3, it is characterised in that：The pressure-bearing pipe
The expandable bladder with water injection pipe open communication is additionally provided between water injection pipe, it is ball ring that the expandable bladder, which is filled under situation,
Shape.
5. a kind of colliery hole packer according to claim 4, it is characterised in that：The expandable bladder by internal layer capsule,
Molten gel capsules composition, being filled between internal layer capsule and molten gel capsules has water-soluble gel；Check valve is provided with the water filling tube opening.
6. a kind of colliery hole packer according to claim 5, it is characterised in that：The water-soluble gel includes the third solidifying, carboxylic
Any one in sodium carboxymethylcellulose pyce, water-soluble pollopas.
7. a kind of colliery hole packer according to claim 6, it is characterised in that：Pressed including the internal layer capsule more than
Ruptured during one pressure, the molten solidifying utricule ruptures when internal pressure exceedes second pressure, the Opening pressure of check valve is less than the first pressure
Power, first pressure is less than second pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621463281.5U CN206495658U (en) | 2016-12-28 | 2016-12-28 | A kind of colliery hole packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621463281.5U CN206495658U (en) | 2016-12-28 | 2016-12-28 | A kind of colliery hole packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206495658U true CN206495658U (en) | 2017-09-15 |
Family
ID=59802725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621463281.5U Withdrawn - After Issue CN206495658U (en) | 2016-12-28 | 2016-12-28 | A kind of colliery hole packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206495658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639974A (en) * | 2016-12-28 | 2017-05-10 | 南京铸安能源科技有限公司 | Hole packer for coal mine |
-
2016
- 2016-12-28 CN CN201621463281.5U patent/CN206495658U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106639974A (en) * | 2016-12-28 | 2017-05-10 | 南京铸安能源科技有限公司 | Hole packer for coal mine |
| CN106639974B (en) * | 2016-12-28 | 2020-06-16 | 南京铸安能源科技有限公司 | Hole packer for coal mine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170915 Effective date of abandoning: 20200616 |
|
| AV01 | Patent right actively abandoned |