CN2083679U

CN2083679U - Thermo-insulated sleeve for pipe line

Info

Publication number: CN2083679U
Application number: CN 90219205
Authority: CN
Inventors: 顾放翼; 李慕伊
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-10-19
Filing date: 1990-10-19
Publication date: 1991-08-28

Abstract

The utility model relates to a heat insulation pipe for pipelines, particularly a novel heat insulation material. The utility model is characterized in that multi-layer aluminium foil anti-heat radiation layers and multi-layer air interlayers are adopted for isolating heat transfer to obtain good heat insulation effects. The material of the heat insulation pipe can ensure that the utility model has the advantages of high temperature resistance, corrosion resistance and certain mechanical strength after chemical treatment. The heat insulation pipe can be widely used for the heat insulation of various hot water pipelines, hot air pipelines, steam pipelines, etc. Compared with present heat insulation materials, the utility model has the advantages of good heat insulation effect, low cost, convenient installation, convenient maintenance, etc.

Description

Thermo-insulated sleeve for pipe line

The utility model relates to a kind of pipe insulation pipe, says so in more detail to be used for the multi-layer structure thermal insulation pipe of heat supply pipeline insulation.

People see usually, for reducing the thermal loss of pipeline, adopt thermal insulating materials such as felt, perlite, rock wool to give pipe insulation usually in industry and civil heat supply system, and its shortcoming is that heat insulation effect is poor, and cladding thickness is big and cost is high.The inventor with the CN88210316 patent disclosure a kind of multi-layer structure pipeline thermal insulation tile of manufacturing with composite material, solved the defective of employed thermal insulating material in the past preferably.But this insulation tile is installed and used inadequately convenient, and two slices watts are difficult for smooth contact to buckle, thereby have influenced heat insulation effect.

Task of the present utility model is that the defective that overcomes prior art provides a kind of seam few, and high insulating effect, thermal insulation layer is thin, in light weight, cost is low, installation and maintenance pipe insulation pipe easily.

After the utility model is achieved in that corrugated paper is paved, compound in the above one deck aluminium foil is placed with at least two supporting bars along the pipe crimping direction above the aluminium foil, puts the mould roller at an end of composite material then, roll and form drum pipe, extract the mould roller out and use again with air blanketing.In order to make corrugated paper and supporting bar have fire prevention, humidity resistance and bondingly firmly all should in sodium silicate liquid, to soak, perhaps will steep the brushing of flower alkali on its surface, treatment fluid uses bubble to spend alkali for well.The pipe of making axially cuts a seam along it after drying.The effect of cracking is to break into two with one's hands with hand when mounted, is easy to be enclosed within on the pipeline, and cracking to be in position bottom, and this is because its underpart heat radiation is relatively poor relatively during the heat dissipation of pipeline of heat, can guarantee that like this insulation pipe has best heat insulation effect.

Will attach a wire spring that can be wrapped on the pipeline in the thermal insulation pipe, its effect is that the thermal insulation pipe inwall is maked somebody a mere figurehead equably around pipeline, forms annulated column shape air layer, and spring forms the some contact to thermal insulation pipe, has reduced heat-conductive characteristic.

Air blanketing is in order to reduce heat-transfer coefficient, and every thermal insulation pipe has one deck air blanketing at least, and the thickness of air blanketing is decided by the thickness of supporting bar, and supporting bar can be used paperboard strip, and various materials such as straw rope are made.

The utlity model has following advantage and good effect:

At first this thermal insulation pipe has good heat insulation effect.Because the structure of this thermal insulation pipe has aluminium foil antiradiation layer and some air blanketings and has only one to crack, and has intercepted three kinds of i.e. conduction of mode, convection current, the radiation of hot transmission substantially.Especially crack when this pipe is installed downwards, according to thermodynamic principle, pipe is less relatively in its underpart heat radiation, so heat insulation effect is better.Because water vapor is zero to the penetrating power of aluminium foil, this is guaranteed hold long-term drying on the other hand, reduce temperature, strengthen heat insulation effect.(this thermal insulation pipe and other thermal insulating material various index contrast situations on steam line see Table one) used this thermal insulation pipe and can be reduced the heat insulating work cost greatly.

The second, these pipe insulation pipe installation and maintenance are convenient, long service life.This thermal insulation pipe adopts one to crack, and breaks into two with one's hands from cracking during installation to be enclosed within from top to down on the pipe, and usefulness thin wire lock ring gets final product again.As find that local damage can tear a watt maintenance at any time open, and contrast rock wool watt, the glass fibre that uses this pipe not only to improve installation efficiency but also avoided in the rock wool watt endangers human body.In addition, because the used fibrous material of this thermal insulation pipe is all through steeping colored alkali treatment, can make Ben Wa have fire prevention, anti-performance and make thermal insulation pipe have higher mechanical strength and rigidity such as rot, prevent damaging by worms.

Table one

Fig. 1: for the pipe insulation tubular axis to half sectional view.

Fig. 2: be the A-A sectional drawing of Fig. 1.

Among the figure: spring (1), aluminium foil (2), corrugated paper (3), air blanketing (4), water-proofing material (5), supporting bar (6).

The utility model is further elaborated with embodiment below in conjunction with accompanying drawing:

As Fig. 1, shown in 2, to manufacture 6 cun (152.4mm) steam pipeline heat-insulation pipes (8) is example, the single-faced corrugated paper (3) of 1900 * 800mm is immersed taking-up oven dry at once in the sodium silicate solution, make then corrugation towards on be tiled on the worktable, spend the aluminium foil (2) of alkali overlapping bonding one deck 15 μ m on the corrugation face again with bubble, be composite material behind the airing, add the thick spring of 25mm with φ 177.4mm(external diameter of pipe) the cylinder type cardboard cylinder do the mould roller, bubble flower alkali stretches and is distributed on the composite material on straw rope (6) libation at an ancient wedding ceremony that 4 1700mm are long, the mould roller is placed on composite material one end and it is rolled three circles form cylinder.The other end is bonding with bubble flower alkali, because the straw rope interval action then forms three layer of air interlayers (4) in the tube, radially extract the mould roller out behind the lock ring with 2 thin wires again, tube was placed shady and cool place airing 2-3 days, untie iron wire and axially cut a slit (7) along outer bonding seam, during installation earlier on 6 cun steam lines spiral twine the spring (1) of φ 25mm, break thermal insulation pipe into two with one's hands along seam then and be inserted on the pipe from top to down, use the thin wire lock ring again, treat that whole pipe installs, be wrapped with waterproof outsourcing material (5) at last and get final product.

Claims

1, a kind of pipe insulation pipe that forms by aluminium foil (2), corrugated paper (3), air blanketing (4), supporting bar (6), watertightness barrier (5) structure, it is characterized in that: aluminium foil (2) in the above, corrugated paper below, the compound drum pipe that rolls into air blanketing (4), axially the having of pipe one crack (7).

2, pipe insulation pipe according to claim 1 is characterized in that: the spring (1) that interval action has been arranged between aluminium foil (2) internal surface and pipeline (8) external diameter.

3, pipe insulation pipe according to claim 1 is characterized in that the air blanketing (4) that has at least one deck to be separated by supporting bar (6).

4, pipe insulation pipe according to claim 1 is characterized in that having at least in the air blanketing two supporting bars (6).

5, according to claim 1,2 described pipe insulation pipes, it is characterized in that: spring (1) is the wire spring that is wrapped on the pipeline (8).

6, pipe insulation pipe according to claim 1 is characterized in that: corrugated paper (3) and supporting bar (6) are meant the corrugated paper and the supporting bar of the bubble flower alkali treatment of having passed through fire prevention, protection against the tide, adhesive effect.