CN204327173U - The contactless note hydrochloric acid unit in a kind of colliery - Google Patents
The contactless note hydrochloric acid unit in a kind of colliery Download PDFInfo
- Publication number
- CN204327173U CN204327173U CN201420613532.8U CN201420613532U CN204327173U CN 204327173 U CN204327173 U CN 204327173U CN 201420613532 U CN201420613532 U CN 201420613532U CN 204327173 U CN204327173 U CN 204327173U
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- CN
- China
- Prior art keywords
- hydrochloric acid
- syringe pump
- water
- note
- colliery
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The contactless note hydrochloric acid unit in a kind of colliery, device comprises, syringe pump, flexible pipe, valve, flowmeter, hydrochloric acid tank, heat insulation foam, water tank.This device utilizes the high velocity, low pressure principle of moving fluid, produces negative-pressure ward concentrated hydrochloric acid at flexible pipe mitered place, thus realizes concentrated hydrochloric acid and mix with water, and passes through valve regulated water and concentrated hydrochloric acid flow, makes hydrochloric acid solution reach desired concn.Utilize this device can inject watery hydrochloric acid quickly and efficiently in coal seam, avoid syringe pump simultaneously and directly aspirate watery hydrochloric acid, corrosion syringe pump body, ensure that the safe handling of syringe pump effectively.
Description
Technical field
The present invention relates to a kind of gas pumping field, particularly relate to the gas pumping in the higher coal seam of carbonate content.
Background technology
The gas pumping measure in coal seam, current colliery, mainly comprise coal-bed flooding, loosening blasting, the measures such as hydraulic flushing in hole and note watery hydrochloric acid, coal seam note watery hydrochloric acid improves more remarkable than water filling to coal gas resolution speed, its reason is, the gas permeability that note watery hydrochloric acid not only can increase coal seam can also react with carbonate in coal seam and generate chloride and CO
2, add porosity and the crack degree of coal body, further enhancing the gas permeability in coal seam, the method applicability is wide, is particularly useful for the coal seam that carbonate content is higher.But injection watery hydrochloric acid common at present directly adopts syringe pump to aspirate watery hydrochloric acid to be expelled in coal seam, and this kind of method easily corrodes syringe pump, the accident such as electric shock accidents causing syringe pump to be corroded to cause, therefore these class methods of the less employing in colliery.
Summary of the invention
For solving to this problem of coal seam injection watery hydrochloric acid corrosion syringe pump, the invention provides the contactless note hydrochloric acid unit in a kind of colliery, utilize this device can inject watery hydrochloric acid quickly and efficiently in coal seam, avoid syringe pump simultaneously and directly aspirate watery hydrochloric acid, corrosion syringe pump body.
In order to realize appealing object, contactless injection hydrochloric acid unit of the present invention comprises: syringe pump, flexible pipe, valve, flowmeter, hydrochloric acid tank, heat insulation foam, water tank.
Contain pure hydrochloric acid in described hydrochloric acid tank; Described flexible pipe adopts the acid resistance such as silicone tube or vinyl tube flexible pipe; The flexible pipe of described conveying water and the flexible pipe mitered of conveying hydrochloric acid, its miter angles is acute angle, is beneficial to negative-pressure ward hydrochloric acid, is convenient to install simultaneously.It connects mitered position external surface and wraps up the moistening heat insulation foam of one deck, avoids hydrochloric acid and water mixing heat production to burn operating personnel.
Adopt the utility model, utilize the high velocity, low pressure principle of fluid, produce negative pressure at flexible pipe mitered place, negative-pressure ward concentrated hydrochloric acid, thus realize concentrated hydrochloric acid and mix with water, and pass through valve regulated water and concentrated hydrochloric acid flow, make hydrochloric acid solution reach desired concn.Utilize this device can inject watery hydrochloric acid quickly and efficiently in coal seam, avoid syringe pump simultaneously and directly aspirate watery hydrochloric acid, corrosion syringe pump body, ensure that the safe handling of syringe pump effectively.
Accompanying drawing explanation
Fig. 1 is the configuration status figure of the contactless note hydrochloric acid unit in a kind of colliery of the utility model.
In figure: 1-water tank, 2-hydrochloric acid tank, 3-1 salt acid tube, 3-2-water pipe, 4-1-hydrochloric acid stream scale, 4-2-quantity meter, 5-1-hydrochloric acid stream adjustable valve, 5-2-Water flow adjusting valve door, 5-3-total flow control valve, 6-heat insulation foam, 7-syringe pump.
Detailed description of the invention
Contactless injection hydrochloric acid unit of the present utility model be by ejection of syringe pump water at water Bottomhole pressure, utilize the high velocity, low pressure principle in hydrodynamics, watery hydrochloric acid extracted out.
Concrete steps are as follows:
To fetch boiling water flow control valve, open syringe pump, then open hydrochloric acid stream adjustable valve, regulating water flow and hydrochloric acid flow, make the two flow-rate ratio meet actual requirement;
Injection terminates rear closedown hydrochloric acid stream adjustable valve, then stops syringe pump, then closes Water flow adjusting valve.
This device, relative to original device, avoids syringe pump and contacts with hydrochloric acid, effectively ensure that the safe handling of syringe pump, and the utility model can according to the actual conditions in coal seam, zones of different position simultaneously, and regulate concentration of hydrochloric acid, applicability is wide.
Claims (1)
1. the contactless note hydrochloric acid unit in colliery, it is characterized in that comprising: water tank (1), hydrochloric acid solution tank (2), syringe pump (7) in water tank, the water pipe (3-2) be connected with syringe pump (7), the salt acid tube (3-1) be connected with hydrochloric acid solution tank (2), hydrochloric acid stream adjustable valve (5-1) on salt acid tube (3-1) and hydrochloric acid stream scale (4-1), Water flow adjusting valve door (5-2) on water pipe (3-2), salt acid tube (3-1) and water pipe (3-2) are with acute angle mitered, one deck heat insulation foam (6) of pipeline mitered position external surface parcel, and total flow control valve (5-3) on main pipe rail and quantity meter (4-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420613532.8U CN204327173U (en) | 2014-10-22 | 2014-10-22 | The contactless note hydrochloric acid unit in a kind of colliery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420613532.8U CN204327173U (en) | 2014-10-22 | 2014-10-22 | The contactless note hydrochloric acid unit in a kind of colliery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204327173U true CN204327173U (en) | 2015-05-13 |
Family
ID=53163545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420613532.8U Expired - Fee Related CN204327173U (en) | 2014-10-22 | 2014-10-22 | The contactless note hydrochloric acid unit in a kind of colliery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204327173U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708765A (en) * | 2018-04-13 | 2018-10-26 | 山东科技大学 | One kind strengthening acid fracturing coal uncovering method based on high temperature disturbance |
-
2014
- 2014-10-22 CN CN201420613532.8U patent/CN204327173U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708765A (en) * | 2018-04-13 | 2018-10-26 | 山东科技大学 | One kind strengthening acid fracturing coal uncovering method based on high temperature disturbance |
| CN108708765B (en) * | 2018-04-13 | 2019-09-06 | 山东科技大学 | One kind strengthening acid fracturing coal uncovering method based on high temperature disturbance |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151022 |
|
| EXPY | Termination of patent right or utility model |