CN201096236Y - Coal mine down-hole heat preservation steel tube - Google Patents
Coal mine down-hole heat preservation steel tube Download PDFInfo
- Publication number
- CN201096236Y CN201096236Y CNU2007200457722U CN200720045772U CN201096236Y CN 201096236 Y CN201096236 Y CN 201096236Y CN U2007200457722 U CNU2007200457722 U CN U2007200457722U CN 200720045772 U CN200720045772 U CN 200720045772U CN 201096236 Y CN201096236 Y CN 201096236Y
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- CN
- China
- Prior art keywords
- steel tube
- heat preservation
- steel pipe
- pipe body
- sheath
- Prior art date
- 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 - Lifetime
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- Thermal Insulation (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a coalmine downhole heat preservation steel tube, comprising a steel tube main body coated with a polyurethane heat preservation layer at the outer side; a double-resistant PE plastic jacket is arranged at the outer side of the heat preservation layer; a bracket is arranged between the steel tube and the jacket. Aimed at the special requirements in sending cold fluid media downhole, the utility model develops a coalmine downhole heat preservation steel tube with good heat preservation, safety, inflaming retarding property and antistatic property.
Description
Technical field
The utility model relates to a kind of insulating steel tube, is specifically related to a kind of insulating steel tube that is used for underground mine use.
Background technique
The coal mining mine of China is shallow well with underground 500 meters with in generally, and underground is the branch of deep-well more than 500 meters.At present mostly China's coal mining mine is underground deep-well below 500 meters, and at underground more than 500 meters every dark 100 meters, downhole temperature just improves 2 ~ 3 ℃, mine more under the deep-well temperature high more, bring deterioration with regard to working environment like this to extractive industry.In order to improve this working environment, just must in deep-well, carry out cold and hot displacement and improve working environment.Originally domestic have a small amount of deep-well colliery when exploitation, adopts the ice refrigerating method.Be exactly in aboveground first ice making, again ice cube be transported to the down-hole, change ambient temperature.This mode cost is big, and efficient is low, weak effect.The method that adopts is to carry the cold fluid medium down to deep-well now, recycles.But at present China does not still have special being used for to carry the pipeline of cold fluid medium down to deep-well, owing to be the pipeline that deep-well uses, and will guarantee the temperature of cold fluid medium, so proposed to comprise insulation, new requirement such as safe, fire-retardant and antistatic.Present existing pipeline is still unavailable.
The model utility content
At the specific demand of carrying the cold fluid medium down to deep-well, the utility model has been designed and developed out a kind of insulation, safe, fire-retardant and anlistatig underground mine use insulating steel tube.
The utility model is achieved through the following technical solutions:
A kind of underground mine use insulating steel tube includes the steel pipe body, and the described steel pipe body outside is provided with polyurethane insulation coating; The outside of described thermal insulation layer is provided with the sheath that material is the PE plastics.
A kind of underground mine use insulating steel tube is provided with support between described steel pipe body and the sheath; One end of support is fixedly connected on the steel pipe body outside, and the other end contacts with jacket inner wall.
A kind of underground mine use insulating steel tube, described sheath material are the PE plastics of two anti-material.
A kind of underground mine use insulating steel tube, described thermal insulation layer material is the spun-glass insulation cotton.
The PE that the utility model adopts two anti-material can play in waterproof, fire-retardant, the antistatic and protective tube as outermost sheath and not be subjected to the impaired effect of foreign impacts.Polyurethane insulation coating can effectively keep the temperature of cold fluid medium, and also can play fire-retardant effect.The support that is provided with between steel pipe and sheath, both can play maintenance steel pipe and sheath is the same center of circle, also can strengthen the body bulk strength.
Description of drawings
Accompanying drawing is cross-sectional structural representation.
Embodiment
Embodiment 1
Participate in shown in the accompanying drawing.
The utility model includes steel pipe body 4, is provided with polyurethane insulation coating 2 in the outside of steel pipe body 4; The outside of thermal insulation layer 2 is provided with the PE plastic sheath 1 of material for two anti-material.Be provided with support 3 between steel pipe body 4 and the sheath 1; One end of support 3 is fixedly connected on steel pipe body 4 outsides, and the other end contacts with the inwall of sheath 1.The PE of two anti-material can play in waterproof, fire-retardant, the antistatic and protective tube as outermost sheath 1 and not be subjected to the impaired effect of foreign impacts.Polyurethane insulation coating 2 can effectively keep the temperature of cold fluid medium, and also can play fire-retardant effect.The support 3 that is provided with between steel pipe body 4 and sheath 1 both can play maintenance steel pipe body 4 and be the same center of circle with sheath 1, also can strengthen the body bulk strength.
Steel pipe body 4 outsides are provided with the thermal insulation layer 2 of the cotton material of spun-glass insulation.All the other are with embodiment 1.
Claims (4)
1, a kind of underground mine use insulating steel tube includes the steel pipe body, it is characterized in that the described steel pipe body outside is provided with polyurethane insulation coating; The outside of described thermal insulation layer is provided with the sheath that material is the PE plastics.
2, a kind of underground mine use insulating steel tube according to claim 1 is characterized in that being provided with support between described steel pipe body and the sheath; One end of support is fixedly connected on the steel pipe body outside, and the other end contacts with jacket inner wall.
3, a kind of underground mine use insulating steel tube according to claim 1 is characterized in that the PE plastics of described sheath material for two anti-material.
4, a kind of underground mine use insulating steel tube according to claim 1 is characterized in that described thermal insulation layer material is the spun-glass insulation cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200457722U CN201096236Y (en) | 2007-08-30 | 2007-08-30 | Coal mine down-hole heat preservation steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200457722U CN201096236Y (en) | 2007-08-30 | 2007-08-30 | Coal mine down-hole heat preservation steel tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096236Y true CN201096236Y (en) | 2008-08-06 |
Family
ID=39923289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200457722U Expired - Lifetime CN201096236Y (en) | 2007-08-30 | 2007-08-30 | Coal mine down-hole heat preservation steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201096236Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047487A (en) * | 2013-01-21 | 2013-04-17 | *** | Double-hole concentric heat tube |
-
2007
- 2007-08-30 CN CNU2007200457722U patent/CN201096236Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047487A (en) * | 2013-01-21 | 2013-04-17 | *** | Double-hole concentric heat tube |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080806 |
|
| CX01 | Expiry of patent term |