CN201407430Y - Thermal-insulation steel pipe for coal mine - Google Patents
Thermal-insulation steel pipe for coal mine Download PDFInfo
- Publication number
- CN201407430Y CN201407430Y CN200920172176XU CN200920172176U CN201407430Y CN 201407430 Y CN201407430 Y CN 201407430Y CN 200920172176X U CN200920172176X U CN 200920172176XU CN 200920172176 U CN200920172176 U CN 200920172176U CN 201407430 Y CN201407430 Y CN 201407430Y
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- Prior art keywords
- steel pipe
- pipe body
- thermal
- coal mine
- 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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- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model relates to a thermal-insulation steel pipe for coal mine. The thermal-insulation steel pipe comprises a steel pipe body, a polyurethane thermal-insulation layer outside the steel pipe, a PE sheath outside the thermal-insulation layer and a bracket between the steel pipe body and the sheath, wherein a polyurea elastomer layer or other organic material is sprayed on the inner sideof the steel pipe body; and one end of the bracket is fixedly connected with the outer side of the steel pipe body, and the other end thereof is in contact with the inner wall of the sheath. The thermal-insulation steel pipe has the advantages of good thermal-insulation effect, high security and flame, electrostatics, corrosion and abrasion resistance.
Description
Technical field
The utility model relates to a kind of insulating steel tube, is specifically related to a kind of be exclusively used in band Spray Polyurea Elastomer or other organic insulating steel tubes under the coal mine.
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.Because the requirement of technology, need increase the salt about 5 ‰ when carrying the cold fluid medium, thermal insulation pipe produces corrosion in running like this, influenced working life, so proposed to comprise insulation, new requirement such as safe, fire-retardant, antistatic, anticorrosion and wear-resisting, present existing pipeline is still unavailable.
The model utility content
The utility model is at the deficiencies in the prior art, designed and developed out a kind of insulation, safe, fire-retardant, antistatic, anticorrosion and wear-resisting underground mine use insulating steel tube.
The utility model is achieved through the following technical solutions:
A kind of insulating steel tube that is used under the coal mine includes the steel pipe body, and the steel pipe body outside is provided with polyurethane insulation coating, and the outside of described thermal insulation layer is provided with the sheath that material is the PE plastics, and steel pipe body inboard is coated with SPUA layer or other organic substance.
A kind of insulating steel tube that is used under the coal mine 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 insulating steel tube that is used under the coal mine, described thermal insulation layer material are the PE plastics of two anti-material.
A kind of insulating steel tube that is used under the coal mine, 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.The inboard Spray Polyurea Elastomer of steel pipe has increased anti-corrosive properties, has strengthened wear resistance, has improved insulating steel tube working life more than 5 times.
Description of drawings
Accompanying drawing is cross-sectional structural representation.
Embodiment
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; Be provided with Spray Polyurea Elastomer layer or other organic substance in steel pipe body inboard.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.SPUA 5 can play anticorrosive property and anti-wear, and 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.
Claims (4)
1, a kind of insulating steel tube that is used under the coal mine includes the steel pipe body, and the steel pipe body outside is provided with polyurethane insulation coating, and the outside of described thermal insulation layer is provided with the sheath that material is the PE plastics, it is characterized in that steel pipe body inboard is coated with the SPUA layer.
2, a kind of insulating steel tube that is used under the coal mine 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 insulating steel tube that is used under the coal mine according to claim 1 is characterized in that the PE plastics of described thermal insulation layer material for two anti-material.
4, a kind of insulating steel tube that is used under the coal mine 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 |
|---|---|---|---|
| CN200920172176XU CN201407430Y (en) | 2009-05-20 | 2009-05-20 | Thermal-insulation steel pipe for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920172176XU CN201407430Y (en) | 2009-05-20 | 2009-05-20 | Thermal-insulation steel pipe for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407430Y true CN201407430Y (en) | 2010-02-17 |
Family
ID=41678364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920172176XU Expired - Lifetime CN201407430Y (en) | 2009-05-20 | 2009-05-20 | Thermal-insulation steel pipe for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407430Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371059A (en) * | 2015-12-08 | 2016-03-02 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Hard polyurethane foam plastic spraying heat preservation pipe and spraying method |
| CN110465432A (en) * | 2019-09-12 | 2019-11-19 | 浙江工业大学 | The automatic positioning technology of mine hydraulic prop anti-corrosion spray |
-
2009
- 2009-05-20 CN CN200920172176XU patent/CN201407430Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105371059A (en) * | 2015-12-08 | 2016-03-02 | 朗格斯特哈尔滨环保节能产品制造有限公司 | Hard polyurethane foam plastic spraying heat preservation pipe and spraying method |
| CN110465432A (en) * | 2019-09-12 | 2019-11-19 | 浙江工业大学 | The automatic positioning technology of mine hydraulic prop anti-corrosion spray |
| CN110465432B (en) * | 2019-09-12 | 2021-03-23 | 浙江工业大学 | Automatic positioning technology for anticorrosion spraying of mine hydraulic prop |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100217 |