CN2438911Y - High-temperature direct-buried disengaging waterproof composite insulating pipeline - Google Patents
High-temperature direct-buried disengaging waterproof composite insulating pipeline Download PDFInfo
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- CN2438911Y CN2438911Y CN 00248080 CN00248080U CN2438911Y CN 2438911 Y CN2438911 Y CN 2438911Y CN 00248080 CN00248080 CN 00248080 CN 00248080 U CN00248080 U CN 00248080U CN 2438911 Y CN2438911 Y CN 2438911Y
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Abstract
The utility model relates to a high-temperature direct-buried disengaging waterproof composite thermal insulating pipeline, which is characterized in that a heat reflection layer is arranged between two thermal insulation layers of closed hole heat insulating material which can resist boiling water and can soak different materials, and a lubrication drag reduction thermal shading composite bed is arranged between the thermal insulation layer and a work steel pipe. Meanwhile, the pipeline is provided with moisture discharging exhaust pipes which are communicated with each layer between the internal layer work steel pipe and an outer layer water proof anticorrosive layer. The utility model has the advantages of pressure resistant, high-temperature resistant, good anticorrosive performance, hard being broken or damaged of the thermal insulation layer, little heat loss, long service life and simple manufacture, and the utility model is suitable for the laying of the high-temperature direct-buried pipelines in areas and rainy and snowy seasons.
Description
The utility model relates to a kind of direct-burried heat supply pipeline, particularly a kind of high temperature direct-burried coming away type waterproof type composite thermal pipeline.
The direct-burried of heat supply pipeline has than built on stilts and trench laying and does not take up an area of; do not influence the city sight; thermal loss is little; waterproof anti-corrosion performance is good; reduce investment outlay; shorten construction period; plurality of advantages such as maintenance expenses is low; and use at present by steel pipe; thermal insulation layer; the bond together integrated type direct-buried insulated pipe that constitutes of protective layer three only is suitable for carrying medium below 120 ℃; if be used to carry high-temperature steam; because of interior steel pipe thermal expansion force big; and the heat insulation protecting layer is different with interior steel pipe thermal expansion coefficient; make its three can't the consubstantiality synchronous shift, can't normally use thereby will cause the heat insulation protecting layer to damage.A kind of direct-burried sliding type complex heat-preservation heating power pipe that is used to carry high-temperature steam was once arranged; and the difference of said structure is to be filled with an inorganic lubricant layer between interior steel pipe and thermal insulation layer; the relative external thermal insulation of steel pipe and protective layer can free displacement and telescopic slide in making; though this pipe has reduced to a certain extent because of the effect to thermal insulation layer and protective layer of the heat expansion of interior steel pipe; avoided the cracking of thermal insulation layer; but owing to only be provided with an inorganic lubricant layer between interior steel pipe and the internal layer thermal insulation layer made by multi cellular glass; and the multi cellular glass surface is comparatively coarse; directly contact among the seam and countless hole that will have quite a few oiling agent evaporation or infiltration multi cellular glass with lubricant layer surface; thereby attenuate lubricating layer thickness; form new surface friction drag in making between the inwall of the weldering trace of steel pipe and thermal insulation layer; the flexible of steel pipe is affected in making; again because the employing internal layer is resistant to elevated temperatures multi cellular glass; skin constitutes the thermal insulation layer with different contraction ratios for hard polyurethane foams; so in working order; the asynchronous displacement that both produced will cause the cracking or the breakage of thermal insulation layer; and the connection slit that the interior interlayer of thermal insulation layer exists and all very easily diathermanous than thin internal layer; scaling loss polyurethane skin makes it can have influence on the working life of heating power pipe equally.
The purpose of this utility model is to provide a kind of high temperature direct-burried coming away type waterproof type composite thermal pipeline; it is not only withstand voltage, high temperature resistant, antiseptic property is good, and protective layer can not cause cracking or damaged because of material thermal expansion coefficient difference; little, the long service life of its thermal loss, and be easy to make.
Its concrete solution is: a heat-reflecting layer is set between the thermal insulation layer of two kinds of unlike materials, hides hot composite bed and be provided with a lubrication drag reduction between internal layer thermal insulation layer and working steel tube.In addition then, lubrication drag reduction hides hot composite bed and is made of inorganic lubricant layer, the inorganic fibrous mats that is positioned at the outer aluminium foil of this layer and is positioned at aluminum foil outer layer, or only is made of aluminium foil and the inorganic fibrous mats that is positioned at aluminum foil outer layer.And the heat-reflecting layer employing is metal aluminum foil.The thermal insulation layer that is positioned at the inside and outside layer of heat-reflecting layer is respectively anti-boiled water boiling immersion, minimum inorganic closed cell foam glass and the high temperature resistant polyurethane of organic closed pore of water absorption rate.Inorganic lubricant is to be formed with the vaseline modulation by graphite or molybdenum disulphide powder.Moreover, this composite thermal pipeline be provided with internal layer working steel tube and waterproof outer anticorrosive coat between the humidity discharging outlet pipe that communicates of each interlayer.
The utility model is that a lubrication drag reduction hides thermosphere owing to what be provided with between working steel tube and thermal insulation layer, make it can avoid in the prior art effectively or infiltrate the problem that the multi cellular glass thermal insulation layer brings its reduced thickness because of the oiling agent evaporation, its not only can guarantee to be heated displacement of working steel tube is slided freely, can play the heat-blocking action of high hot-zone again, avoid effectively the drawing crack of multi cellular glass thermal insulation layer and breakage and polyurethane insulation coating charing, burn and subside.And the heat-reflecting layer that is provided with between two thermal insulation layers, not only can prevent to connect to collaborate in the slit or burn because of the thickness deficiency raises the interface regenerator temperature because of the multi cellular glass thermal insulation layer, jeopardize anticorrosion watertightness barrier after charing polyurethane insulation coating and the puncture, and, the smooth outer surface of heat-reflecting layer aluminium foil also helps polyurethane foam, thereby made things convenient for the making of anticorrosion watertightness barrier, the pipeline that change in location caused that particularly also can avoid causing because of two thermal insulation layer contraction ratio differences damages, make all telescopic displacements independently of each thermal insulation layer, in construction and using process, also can discharge by the humidity discharging exhaust port even contain the water of trace in the interlayer.The utility model has solved the variety of issue that produces after working steel tube is heated comprehensively in overall construction design, reached heat-resisting, withstand voltage, water-fast, anticorrosion, the purpose of safe heat supply, guaranteed the Security of pipeline, prolonged working life, improved the heat capacity of pipeline, reduced the loss of the energy, be applicable to high water level, laying of the buried high temperature pipeline in rainy snowfield district, can avoid doing over again, dissolve investment risk, real is a kind of oil that is widely used in, chemical industry, metallurgical, electric power, concentrated supply of heating in the city, cooling, the grade high temperature direct-burried coming away type waterproof type composite thermal pipeline of industry of sky.
In conjunction with the accompanying drawings the utility model is described in detail below by embodiment:
Fig. 1 is the utility model embodiment 1 a structural drawing.
Fig. 2 is the A-A amplification profile of Fig. 1.
Fig. 3 is the utility model embodiment 2 a structural representation.
Embodiment 1:
Fig. 1, among Fig. 2, be positioned at working steel tube 2 outer lubrication drag reductions and hide the inorganic lubricant layer 3 of hot composite bed by internal layer, inorganic fibrous mats 5 and the aluminium foil between inorganic lubricant layer and inorganic fibrous mats 4 constitute, wherein, what inorganic lubricant layer 3 adopted modulates the inorganic lubricant that forms for graphite adds vaseline, inorganic fibrous mats 5 is an alumina silicate, and be provided with a metal aluminum foil heat-reflecting layer 7 between closed cell foam glass insulating layer 6 outside lubrication drag reduction hides hot composite bed and the high temperature resistant polyurethane insulation coating 8 of organic closed pore in pipeline outermost surface glass fibre reinforced plastics water-tight corrosion-proof layer 9, and, alumina silicate combines with the roll extrusion of closed cell foam glass, and the connection slit of closed cell foam vitreous tile interblock is by foam asbestus or the sealing of magnesium silicate slurry fills.Simultaneously, this insulation pipe is provided with the humidity discharging outlet pipe 1 that communicates with each interlayer of this pipeline.
During the utility model work, working steel tube 2, thermal insulation layer 6,8 all can independently carry out telescopic displacement, and a small amount of moisture of each interlayer also can be discharged by humidity discharging outlet pipe 1.
Embodiment 2:
Hide hot composite bed only by aluminium foil and be positioned at outer field inorganic fibrous mats constitutes except that lubrication drag reduction among Fig. 3, all the other structures are identical with embodiment 1.
Claims (4)
1, a kind of high temperature direct-burried coming away type waterproof type composite thermal pipeline is characterized in that between the thermal insulation layer (6), (8) of two kinds of unlike materials one heat-reflecting layer (7) being set, and hides hot composite bed and be provided with a lubrication drag reduction between thermal insulation layer (6) and working steel tube (2).
2, a kind of high temperature direct-burried coming away type waterproof type composite thermal pipeline according to claim 1, it is characterized in that lubrication drag reduction hide hot composite bed by inorganic lubricant layer (3), be positioned at the outer field aluminium foil of inorganic lubricant layer (3) (4) and be positioned at that the outer field inorganic fibrous mats of aluminium foil (4) (5) constitutes or only constitute by aluminium foil (4) and the inorganic fibrous mats (5) that is positioned at aluminum foil outer layer.
3, a kind of high temperature direct-burried coming away type waterproof type composite thermal pipeline according to claim 1 is characterized in that the thermal insulation layer (6), (8) that are positioned at the inside and outside layer of heat-reflecting layer (7) are respectively inorganic closed cell foam glass and the high temperature resistant polyurethane of organic closed pore.
4, a kind of high temperature direct-burried coming away type waterproof type composite thermal pipeline according to claim 1, it is characterized in that pipeline be provided with internal layer working steel tube (2) and waterproof outer anticorrosive coat (9) between the humidity discharging outlet pipe (1) that communicates of each layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00248080 CN2438911Y (en) | 2000-08-29 | 2000-08-29 | High-temperature direct-buried disengaging waterproof composite insulating pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00248080 CN2438911Y (en) | 2000-08-29 | 2000-08-29 | High-temperature direct-buried disengaging waterproof composite insulating pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2438911Y true CN2438911Y (en) | 2001-07-11 |
Family
ID=33606837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00248080 Expired - Fee Related CN2438911Y (en) | 2000-08-29 | 2000-08-29 | High-temperature direct-buried disengaging waterproof composite insulating pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2438911Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335839C (en) * | 2005-03-07 | 2007-09-05 | 郭春秋 | Steel-enclosing-steel high temperature resistant direct burial anticorrosive insulating system |
| CN104373774A (en) * | 2014-10-31 | 2015-02-25 | 哈尔滨朗格斯特节能科技有限公司 | Method for fixing alarm lines of crosslinked polyethylene variable-diameter pipe fitting of intelligent prefabricated directly-buried thermal insulation pipe |
-
2000
- 2000-08-29 CN CN 00248080 patent/CN2438911Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100335839C (en) * | 2005-03-07 | 2007-09-05 | 郭春秋 | Steel-enclosing-steel high temperature resistant direct burial anticorrosive insulating system |
| CN104373774A (en) * | 2014-10-31 | 2015-02-25 | 哈尔滨朗格斯特节能科技有限公司 | Method for fixing alarm lines of crosslinked polyethylene variable-diameter pipe fitting of intelligent prefabricated directly-buried thermal insulation pipe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Suicheng Document name: payment instructions |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |