CN202327523U - Direct burial steam conveying pipeline - Google Patents
Direct burial steam conveying pipeline Download PDFInfo
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- CN202327523U CN202327523U CN2011204574346U CN201120457434U CN202327523U CN 202327523 U CN202327523 U CN 202327523U CN 2011204574346 U CN2011204574346 U CN 2011204574346U CN 201120457434 U CN201120457434 U CN 201120457434U CN 202327523 U CN202327523 U CN 202327523U
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- thermal insulation
- steam conveying
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Abstract
The utility model discloses a direct burial steam conveying pipeline, comprising an inner working pipe, a thermal insulation layer and an outer protective tube which are sequentially arranged from inside to outside, wherein the thermal insulation layer adopts silica aerogel thermal insulation material. By adopting the direct burial steam conveying pipeline disclosed by the utility model, thermal insulation performance can be greatly improved, heat loss is reduced, specification of the outer protective tube is reduced, pipeline transportation cost and related civil engineering and installation costs are reduced, and underground space utilization rate is improved.
Description
Technical field
The utility model relates to the delivery of steam technology, relates in particular to a kind of directly buried type steam conveying pipe.
Background technique
In the steam direct-buried conveying technology of present existing thermoelectric industry; The application form of directly buried type steam conveying pipe mainly is a steel bushing steel prefabricated thermal insulation pipeline; Working pipe is steel pipe with outer protective tube promptly, and thermal insulation layer adopts high temperature resistant centrifugally glass-wool, aluminium silicate wool and goods, calcium silicate products etc.The structural type of tradition steel bushing steel direct embedment steel pipe mainly contains following two kinds:
1) inner sliding type: with reference to figure 1, working steel tube and insulating structure were thrown off in interior slip was, during the working steel tube expanded by heating; The steel pipe motion; Be subjected to displacement, and insulating structure layer and outer sleeve become an overall structure, do not produce motion; The insulating structure internal layer be resistant to elevated temperatures hard microporous calcium silicate or magnesium silicate tile fragment as thermal-protective coating, the urethane foam that outerly adopt that thermal conductivity is low, waterproof, antiseptic property is good is as thermal insulation layer.
Its shortcoming mainly contains: 1. internal layer hard heat-insulating layer is generally calcium silicate watt or magnesium silicate and watt when parcel, can produces more slit, causes inhomogeneously, and local heat dissipating capacity is bigger;
2. the hard heat-insulated layer of internal layer calcium silicate watt or magnesium silicate watt density are bigger, cause the steel jacket pipe overall weight bigger, are unfavorable for pipeline transport and lifting;
3. it is higher that its use receives the thermal conductivity of calcium silicate watt grade under the high temperature, restriction of factor such as thermal insulation property is relatively poor, and outer polyurethane thermal insulation layer heatproof is lower etc.
Above-mentioned inner sliding type directly buried type steam conveying pipe is very big to the runnability influence because of its shortcoming of case history proof, thus do not adopt basically in the prior art, and the directly buried type steam conveying pipe of outer sliding type below adopt more.
2) outer sliding type: with reference to figure 2, its structure is respectively working pipe, thermal insulation layer, air layer, outer sleeve, anticorrosive coat from inside to outside.The gap that 10～20mm is arranged between outer sleeve and the insulating structure layer; Can play certain heat insulation effect if this gap partly vacuumized; But vacuum pumping technique is regularly extracted the air in the space out with vacuum pump implementing to acquire a certain degree of difficulty and in the engineering operation process, need, and just can reach to strengthen thermal insulation property and alleviate the function of the internal corrosion of Steel Sleeve.
Its shortcoming mainly contains: 1. thermal insulation layer is mainly aluminium silicate wool and goods and centrifugally glass-wool; Mostly these thermal insulating materials are non-watertight material; And thermal insulation layer is intake easily in construction and the transportation process, causes a large amount of heat losss at initial operating stage, and reduces the thermal insulation property of thermal insulating material;
2. the thermal insulation property of thermal insulating material is not high, causes the interior working steel tube of outer sleeve specification a lot of greatly, influence transportation and underground laying.
The model utility content
The utility model technical problem to be solved is: a kind of directly buried type steam conveying pipe is provided; This pipeline can promote thermal insulation property greatly, reduce heat energy loss; And reduce outer protection pipeline specifications, thereby expenses such as reduction cost of transportation and civil engineering, installation improve underground space utilization ratio.
For solving the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of directly buried type steam conveying pipe includes the interior working pipe, thermal insulation layer, the outer protective tube that are provided with from inside to outside successively, and said thermal insulation layer adopts the aerosil thermal insulating material.
Preferably, said aerosil thermal insulating material is the cotton felt of aerosil composite heat preserving and thermal insulating.
Preferably, said thermal insulation layer and outside also be provided with air layer between the protective tube.
Preferably, be outside equipped with clip and bracket component at said thermal insulation layer.
Preferably, be covered with thermal reflecting coating at said thermal insulation layer outer surface.
Preferably, said outer protective tube includes and is arranged on outer outer steel pipe of said air layer and the external anti-corrosion layer that is overlying on this outer steel pipe outer surface.
Preferably, said interior working pipe is a steel pipe.
The beneficial effect of the utility model is:
The embodiment of the utility model is through being applied to the compound insulating material that is applied to the aerosil in fields such as Aero-Space in the existing technology in the thermal insulation layer of directly buried type steam conveying pipe; Traditional thermal insulating materials such as instead of glass cotton, alumina silicate; Thereby promoted thermal insulation property greatly, reduced heat energy loss; And reduced expenses such as pipeline transport cost and civil engineering, installation, improved underground space utilization ratio.
Below in conjunction with accompanying drawing the utility model is done further to describe in detail.
Description of drawings
Fig. 1 is the generalized section of the inner sliding type directly buried type steam conveying pipe of existing technology.
Fig. 2 is the generalized section of the outer sliding type directly buried type steam conveying pipe of existing technology.
Fig. 3 is an embodiment's of directly buried type steam conveying pipe of the utility model a generalized section.
Embodiment
An embodiment of the directly buried type steam conveying pipe that the utility model provides is described with reference to figure 3 below; As shown in the figure, the utility model mainly includes interior working pipe 1, thermal insulation layer 2, the outer protective tube 3 that is provided with from inside to outside successively, and wherein, thermal insulation layer 2 adopts the aerosil thermal insulating material.
In addition, thermal insulation layer 2 and outside also be provided with air layer 4 between the protective tube 3; Be outside equipped with clip and bracket component 5 at said thermal insulation layer 2; Said thermal insulation layer 2 outer surfaces are covered with thermal reflecting coating 6.
Further, said outer protective tube 3 includes outer steel pipe 31 that is arranged on outside the said air layer 4 and the external anti-corrosion layer 32 that is overlying on these outer steel pipe 31 outer surfaces.
As an implementation of present embodiment, said aerosil thermal insulating material is the cotton felt of aerosil composite heat preserving and thermal insulating; Interior working pipe 1 can adopt steel pipe; Thermal reflecting coating 6 can adopt the aluminium foil thermal reflecting coating; Clip in clip and the bracket component 5 can adopt steel pipe.
The silica aerogel material that thermal insulation layer 2 adopts in the present embodiment is as the high temperature resistant heat-insulating material of nanometer that is mainly used in fields such as Aero-Space in the existing technology, and its nano effect brings superior thermal insulation property mainly to show:
1. zero convection effect: when the hole diameter in the thermoinsulation material was the closed pore perfect condition less than 50nm, thermoinsulation material gas inside molecule had just lost the macroscopic motion ability basically, has therefore also just lost the ability of thermoconvection campaign and heat transfer by convection.
2. infinite multiaspect hides thermal effect: when the hole diameter in the thermoinsulation material reduces; The surface area of its air vent wall can sharply increase; In material, form infinite many gas---liquid/solid interfaces, thermal-radiating ray in transmittance process, can take place to be close to infinite repeatedly reflection, absorption, transmission and at radiative process, thermal radiation capability is decayed rapidly; Last major part is absorbed in the surface near hot side one side of thermoinsulation material, and then returns original heat emission body with thermal-radiating mode.
The cotton felt of aerosil composite heat preserving and thermal insulating is the composite article of aerosil; Its thermal insulation property is very superior; Its thermal conductivity λ≤0.02W/mK under the normal temperature; The heatproof maximum can reach 650 ℃, and toughness and tensile strength are preferably arranged, and has very significant superiority as the thermal insulating material of thermal insulation layer in the present embodiment.
Compared with prior art, the utlity model has following advantage:
1. the thermal conductivity of the cotton felt of aerosil composite heat preserving and thermal insulating is low, and thermal insulation property is fabulous, significantly reduces the heat loss in the delivery of steam process, increases the delivery of steam distance;
2. insulation layer thickness reduces greatly, and the outer steel pipe specification correspondingly changes little, thereby has reduced expenses such as pipeline transport cost and civil engineering, installation;
3. reduce direct embedment steel pipe burying the required underground space of when ground, improved underground space utilization ratio.
The above is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also are regarded as the protection domain of the utility model.
Claims (7)
1. a directly buried type steam conveying pipe includes the interior working pipe, thermal insulation layer, the outer protective tube that are provided with from inside to outside successively, it is characterized in that: said thermal insulation layer adopts the aerosil thermal insulating material.
2. directly buried type steam conveying pipe as claimed in claim 1 is characterized in that: said aerosil thermal insulating material is the cotton felt of aerosil composite heat preserving and thermal insulating.
3. directly buried type steam conveying pipe as claimed in claim 2 is characterized in that: said thermal insulation layer and outside also be provided with air layer between the protective tube.
4. directly buried type steam conveying pipe as claimed in claim 3 is characterized in that: be outside equipped with clip and bracket component at said thermal insulation layer.
5. directly buried type steam conveying pipe as claimed in claim 4 is characterized in that: be covered with thermal reflecting coating at said thermal insulation layer outer surface.
6. like each described directly buried type steam conveying pipe among the claim 1-5, it is characterized in that: said outer protective tube includes and is arranged on outer outer steel pipe of said air layer and the external anti-corrosion layer that is overlying on this outer steel pipe outer surface.
7. directly buried type steam conveying pipe as claimed in claim 6 is characterized in that: working pipe is a steel pipe in said.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204574346U CN202327523U (en) | 2011-11-17 | 2011-11-17 | Direct burial steam conveying pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204574346U CN202327523U (en) | 2011-11-17 | 2011-11-17 | Direct burial steam conveying pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202327523U true CN202327523U (en) | 2012-07-11 |
Family
ID=46439504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204574346U Expired - Fee Related CN202327523U (en) | 2011-11-17 | 2011-11-17 | Direct burial steam conveying pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202327523U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527902A (en) * | 2013-10-25 | 2014-01-22 | 江苏明江机械制造有限公司 | Heat-insulating nanometer aerogel support |
| CN105114763A (en) * | 2015-09-22 | 2015-12-02 | 江苏中圣管道工程技术有限公司 | Low-energy-consumption and long-distance steam conveying device |
| CN106323066A (en) * | 2016-08-16 | 2017-01-11 | 江苏洁润管业有限公司 | Novel aerogel geothermal pipe |
| CN114396533A (en) * | 2021-12-31 | 2022-04-26 | 珠海新源热力有限公司 | Anti-corrosion device for steam directly buried pipeline and control method thereof |
-
2011
- 2011-11-17 CN CN2011204574346U patent/CN202327523U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527902A (en) * | 2013-10-25 | 2014-01-22 | 江苏明江机械制造有限公司 | Heat-insulating nanometer aerogel support |
| CN105114763A (en) * | 2015-09-22 | 2015-12-02 | 江苏中圣管道工程技术有限公司 | Low-energy-consumption and long-distance steam conveying device |
| CN106323066A (en) * | 2016-08-16 | 2017-01-11 | 江苏洁润管业有限公司 | Novel aerogel geothermal pipe |
| CN114396533A (en) * | 2021-12-31 | 2022-04-26 | 珠海新源热力有限公司 | Anti-corrosion device for steam directly buried pipeline and control method thereof |
| CN114396533B (en) * | 2021-12-31 | 2023-08-01 | 珠海新源热力有限公司 | Corrosion prevention device for steam direct-buried pipeline and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jiangsu DEWN Energy Saving Co., Ltd. Assignor: Wuhan DEWN Engineering Technology Co., Ltd. Contract record no.: 2012320010154 Denomination of utility model: Direct-buried steam conveying pipeline Granted publication date: 20120711 License type: Exclusive License Record date: 20120627 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EC01 | Cancellation of recordation of patent licensing contract |
Assignee: Jiangsu DEWN Energy Saving Co., Ltd. Assignor: Wuhan DEWN Engineering Technology Co., Ltd. Contract record no.: 2012320010154 Date of cancellation: 20140910 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Direct-buried steam conveying pipeline Effective date of registration: 20140922 Granted publication date: 20120711 Pledgee: Wuxi rural commercial bank Limited by Share Ltd Yixing branch Pledgor: Jiangsu Dewei Energy Company Limited| Wuhan Dewei Engineering Technology Co Ltd Registration number: 2014990000779 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170612 Granted publication date: 20120711 Pledgee: Wuxi rural commercial bank Limited by Share Ltd Yixing branch Pledgor: Jiangsu Dewei Energy Company Limited|Wuhan Dewei Engineering Technology Co Ltd Registration number: 2014990000779 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right |