CN202327524U - Overhead steam conveying pipeline - Google Patents

Overhead steam conveying pipeline Download PDF

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Publication number
CN202327524U
CN202327524U CN2011204633946U CN201120463394U CN202327524U CN 202327524 U CN202327524 U CN 202327524U CN 2011204633946 U CN2011204633946 U CN 2011204633946U CN 201120463394 U CN201120463394 U CN 201120463394U CN 202327524 U CN202327524 U CN 202327524U
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CN
China
Prior art keywords
thermal
thermal insulation
steam conveying
heat preservation
overhead type
Prior art date
Application number
CN2011204633946U
Other languages
Chinese (zh)
Inventor
徐斌
邓永高
覃宏
王伟
Original Assignee
武汉德威工程技术有限公司
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Application filed by 武汉德威工程技术有限公司 filed Critical 武汉德威工程技术有限公司
Priority to CN2011204633946U priority Critical patent/CN202327524U/en
Application granted granted Critical
Publication of CN202327524U publication Critical patent/CN202327524U/en

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Abstract

The utility model discloses an overhead steam conveying pipeline, which comprises an inner working tube, a heat preservation layer, a fixing component and an outer protection tube which are arranged from inside to outside, wherein the heat preservation layer comprises an outer heat preservation layer and an inner heat preservation layer; and the outer heat preservation layer is a hydrophobic hard polyurethane heat preservation layer; the inner heat preservation layer is a silicon dioxide aerogel heat preservation layer. According to the overhead steam conveying pipeline, the heat preservation property can be improved greatly, the heat energy loss is reduced, the cost is reduced, and the space utilization rate is increased.

Description

The overhead type steam conveying pipe

Technical field

The utility model relates to the delivery of steam technology, relates in particular to a kind of overhead type steam conveying pipe.

Background technique

At present in the existing concentrated thermoelectric field for the transporting pattern of steam except directly buried type is carried, also having a kind of mode of movement is the over ground installation mode, promptly overhead type lays.With reference to figure 2; In the existing technology; The following structure of the general employing in overhead type steam output pipe road: the interior working pipe 10 that sets gradually from inside to outside, thermal insulation layer 20, aluminium foil thermal reflecting coating, wrapping are with galvanized wire (not shown), outer protective tube 30; Wherein interior working pipe 10 adopts seamless steel pipes or two-sided helix seam welded steel pipe etc., and thermal insulation layer more than 20 is with thermal insulating materials such as high temperature resistant centrifugally glass-wool, alumina silicate needle punched blankets, outer protective tube 30 employings galvanized sheet iron or sheet metal etc.

The overhead type steam conveying pipe of existing technology has following shortcoming:

1. thermal insulation layer adopts single thermal insulating material, and the thermal insulating material thermal insulation property of choosing usually is not good, for the high temperature of steam medium in the ability pipeline, must guarantee that insulation layer thickness is enough big, causes outer protective tube diameter needs correspondingly to strengthen, and causes cost to improve;

2. because insulation layer thickness is big, its external surface area is correspondingly big, radiating efficiency is big, causes heat loss to strengthen;

3. the bore of outer protective tube is excessive, causes pipeline to take up room and becomes big, and this problem shortcoming when occasion channellings such as on-site piping lane is particularly outstanding.

The model utility content

The utility model technical problem to be solved is: a kind of overhead type steam conveying pipe is provided, and this pipeline can promote thermal insulation property greatly, reduce heat energy loss, and reduces cost, and improves space availability ratio.

For solving the problems of the technologies described above, the utility model adopts following technological scheme:

A kind of overhead type steam conveying pipe; Include the interior working pipe, thermal insulation layer, fixing-assembly, the outer protective tube that are provided with from inside to outside successively; Said thermal insulation layer includes external thermal insulation and inner thermal insulating layer; Wherein, said external thermal insulation is a hydrophobic hard polyaminoester thermal insulation layer, and said inner thermal insulating layer is the aerosil thermal insulation layer.

Preferably, said aerosil thermal insulating material is the cotton felt of aerosil composite heat preserving and thermal insulating.

Preferably, between said inner thermal insulating layer and external thermal insulation, also be provided with thermal reflecting coating.

Preferably, said thermal reflecting coating is the aluminium foil thermal reflecting coating.

Preferably, said fixing-assembly is a Stainless Steel Band.

Preferably, said interior working pipe is a steel pipe.

Preferably, the material of said outer protective tube is galvanized sheet iron or sheet metal.

The beneficial effect of the utility model is:

The embodiment of the utility model through the cotton felt of refractory composite heat insulating that the aerosil thermoinsulation material that is applied to fields such as Aero-Space in the existing technology is processed as inner thermal insulating layer, with the hydrophobic hard polyaminoester that is applied to relatively lower temps insulations such as hot water, air conditioner water in the existing technology as external thermal insulation; Form double-deck thermal insulation layer; Thereby improved thermal insulation property greatly, reduced heat energy loss; And reduced cost, improved space availability 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 overhead type steam conveying pipe of existing technology.

Fig. 2 is an embodiment's of overhead type steam conveying pipe of the utility model a generalized section.

Embodiment

Describe an embodiment of the overhead type steam conveying pipe that the utility model provide below in detail with reference to figure 2; As shown in the figure; The utility model mainly includes interior working pipe 1, thermal insulation layer 2, fixing-assembly (not shown), the outer protective tube 3 that is provided with from inside to outside successively; Said thermal insulation layer 2 includes external thermal insulation 21 and inner thermal insulating layer 22; Wherein, said external thermal insulation 21 is a hydrophobic hard polyaminoester thermal insulation layer, and said inner thermal insulating layer 22 is the aerosil thermal insulation layer.

In addition, between inner thermal insulating layer 22 and external thermal insulation 21, also be provided with thermal reflecting coating 4.

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 4 can adopt the tinfoil paper thermal reflecting coating; Fixing-assembly 3 can adopt Stainless Steel Band; Said outer protective tube 3 can adopt galvanized sheet iron or sheet metal etc.

The silica aerogel material that inner thermal insulating layer 22 in the present embodiment adopts 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.

The high temperature resistant hydrophobic hard foam polyurethane material that external thermal insulation 22 in the present embodiment adopts brings superior thermal insulation property mainly to show:

Because mostly hard polyurethane foam be hole-closing structure, have good characteristics such as insulation effect is good, in light weight, specific strength big, easy construction, also have characteristics such as sound insulation, shockproof, electrical insulation, heat-resisting, cold-resistant, anti-solvent simultaneously; Be widely used in the thermoinsulation material such as casing heat insulation layer, freezer, refrigerator car of refrigerator, refrigerator-freezer; Building, storage tank and pipe insulation material, thermal conductivity λ≤0.03W/mK under its normal temperature, compressive strength is more than or equal to 0.3MPa; Water-proof performance is good; 100 ℃ of boiling water soak 90 minutes water absorption rate≤10%, and for a long time high-temperature resistant reaches 110 ℃, and peak temperature can reach 130 ℃; Through the two-layer compound insulating structure, the aerogel thermal insulation layer of internal layer can be reduced to polyurethane safe handling scope with temperature fully.

During concrete the realization, the visual actual demand setting of thickness of external thermal insulation 21 and inner thermal insulating layer 22.

Present embodiment is reduced to the temperature range value that a certain satisfied outer hydrophobic hard polyaminoester heatproof requires through the cotton felt of certain thickness internal layer aerogel composite adiabatic with the outer heat transfer temperature of medium; And satisfy the relevant industries code requirement; Thereby make inside and outside thermal insulation layer can make full use of the heat loss of thermal insulation property reduction delivery of steam separately; And reduce the insulating structure cost to greatest extent, and reduce the outer steel pipe specification greatly simultaneously, reduce the built on stilts size that takes up space of steam line.

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, has significantly reduced the heat loss in the delivery of steam process, increases the delivery of steam distance;

2. reduce outer protective tube caliber size, improved space availability ratio;

3. thermal insulation layer is a waterproof construction; Avoid transporting, water inlet such as storage and the thermal insulation property that causes reduces, and reduce that run duration moisture infiltrates and the heat loss that causes, insulating structure is stable; Reduce the etching condition of working pipe simultaneously, increase the working life of working pipe.

4. through adopting the double insulation structure of cotton felt of aerosil composite heat preserving and thermal insulating and high temperature resistant hydrophobic hard polyurethane foams, rationally utilized the thermal insulation property of each thermal insulating material, and reduced the thermal insulation layer cost to greatest extent;

5. the high-strength characteristic of the thermal insulation layer of hard polyurethane foams formation has improved the aerial pipeline resistance to compression, resisted intensity, and is not yielding, the working life that has increased insulating structure.

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. overhead type steam conveying pipe; Include the interior working pipe, thermal insulation layer, fixing-assembly, the outer protective tube that are provided with from inside to outside successively; It is characterized in that: said thermal insulation layer includes external thermal insulation and inner thermal insulating layer; Wherein, said external thermal insulation is a hydrophobic hard polyaminoester thermal insulation layer, and said inner thermal insulating layer is the aerosil thermal insulation layer.
2. overhead 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. overhead type steam conveying pipe as claimed in claim 2 is characterized in that: between said inner thermal insulating layer and external thermal insulation, also be provided with thermal reflecting coating.
4. overhead type steam conveying pipe as claimed in claim 3 is characterized in that: said thermal reflecting coating is the aluminium foil thermal reflecting coating.
5. like each described overhead type steam conveying pipe among the claim 1-4, it is characterized in that: said fixing-assembly is a Stainless Steel Band.
6. overhead type steam conveying pipe as claimed in claim 5 is characterized in that: working pipe is a steel pipe in said.
7. overhead type steam conveying pipe as claimed in claim 6 is characterized in that: the material of said outer protective tube is galvanized sheet iron or sheet metal.
CN2011204633946U 2011-11-18 2011-11-18 Overhead steam conveying pipeline CN202327524U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011204633946U CN202327524U (en) 2011-11-18 2011-11-18 Overhead steam conveying pipeline

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011204633946U CN202327524U (en) 2011-11-18 2011-11-18 Overhead steam conveying pipeline

Publications (1)

Publication Number Publication Date
CN202327524U true CN202327524U (en) 2012-07-11

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103195985A (en) * 2013-04-08 2013-07-10 广东埃力生高新科技有限公司 Conveying pipe with multilayer composite heat insulation structure
CN103383053A (en) * 2012-11-06 2013-11-06 常州循天节能科技有限公司 Heat-insulating structural part for pipeline
CN103438289A (en) * 2013-09-04 2013-12-11 江苏德威节能有限公司 Novel steam crossover pipe structure
CN103968190A (en) * 2014-05-07 2014-08-06 宁波万里管道有限公司 Prefabricated overhead heat insulation pipe
CN104121222A (en) * 2013-04-24 2014-10-29 江苏洪流化工机械有限公司 Improved plastic-lined pump
CN104390100A (en) * 2014-10-31 2015-03-04 无锡同心塑料制品有限公司 Heat-insulating pipeline
CN105202316A (en) * 2015-10-14 2015-12-30 浙江振申绝热科技股份有限公司 Pipeline heat preservation system
CN105215630A (en) * 2015-08-31 2016-01-06 南京航空航天大学 A kind of preparation method of resistance to 500 DEG C of ultra-thin heat-insulating pipelines

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103383053A (en) * 2012-11-06 2013-11-06 常州循天节能科技有限公司 Heat-insulating structural part for pipeline
CN103383053B (en) * 2012-11-06 2016-04-13 常州循天节能科技有限公司 The insulating structure part of pipeline
CN103195985A (en) * 2013-04-08 2013-07-10 广东埃力生高新科技有限公司 Conveying pipe with multilayer composite heat insulation structure
CN103195985B (en) * 2013-04-08 2015-09-02 广东埃力生高新科技有限公司 There is the conveyance conduit of multilayer composite heat insulation structure
CN104121222A (en) * 2013-04-24 2014-10-29 江苏洪流化工机械有限公司 Improved plastic-lined pump
CN103438289A (en) * 2013-09-04 2013-12-11 江苏德威节能有限公司 Novel steam crossover pipe structure
CN103968190A (en) * 2014-05-07 2014-08-06 宁波万里管道有限公司 Prefabricated overhead heat insulation pipe
CN103968190B (en) * 2014-05-07 2017-02-01 宁波万里管道有限公司 Prefabricated overhead heat insulation pipe
CN104390100A (en) * 2014-10-31 2015-03-04 无锡同心塑料制品有限公司 Heat-insulating pipeline
CN105215630A (en) * 2015-08-31 2016-01-06 南京航空航天大学 A kind of preparation method of resistance to 500 DEG C of ultra-thin heat-insulating pipelines
CN105202316A (en) * 2015-10-14 2015-12-30 浙江振申绝热科技股份有限公司 Pipeline heat preservation system

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Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
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: Overhead 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: Overhead 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: 20141118

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