CN2295899Y

CN2295899Y - Metal membrane attached thermal insulating layer for high and low temperature installation containers and pipelines

Info

Publication number: CN2295899Y
Application number: CN 97202408
Authority: CN
Inventors: 王小宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-03-19
Filing date: 1997-03-19
Publication date: 1998-10-28
Anticipated expiration: 2007-03-19

Abstract

The utility model relates to a thermal insulation layer with metal films for high and low temperature equipment, containers, and pipelines. The previous thermal insulating materials of thermal insulation layers are directly wrapped on a thermal-insulating object, and the heat insulation effect is poor due to the strong thermal radiation and the heat transfer of solids. The upper part of a thermal-insulating object of the utility model is provided with bushing rings, and a fibrous insulation material layer is wrapped on the bushing rings, and the inside and the outside of the fibrous insulation material layer are glued with metal films, so that enclosed metal film air spaces are formed among the thermal-insulating object, the bushing rings, and the fibrous insulation material layer. Most of the heat transfer in the air spaces are converted into the heat transfer of heat radiation. The metal film has high reflectivity and low emissivity to heat radiation, so that heat radiation can be effectively blocked. Additionally, with the good thermal insulation actions of the enclosed air spaces and the thermal insulation material layer, the effect of thermal insulation is obviously increased.

Description

The adiabatic high and low-temperature apparatus container conduit of metallic film thermal insulation layer

The utility model relates to a kind of high and low-temperature apparatus, container, pipe insulating layer.

High and low-temperature apparatus, container, pipe insulating layer were that adiabator layer is directly wrapped on the warmed body shell in the past.Because warmed body appearance temperature is generally all very high, can cause strong thermal radiation loss of heat; Because thermal insulation layer directly wraps on the shell of warmed body, form stronger solid heat transfer, thereby cause the insulation effect of thermal insulation layer very poor again.

The purpose of this utility model is for a kind of high and low-temperature apparatus, container, pipe insulating layer.It has increased metallic film and occluded air interbed, and insulation effect obviously is better than existing thermal insulation layer.

The utility model is achieved in that a plurality of grommets of fixed interval on the shell of warmed body.Fiber heat preservation material layer inner and outer surface wraps on the grommet to be adhesive with metallic film.Be separated by with grommet between adiabator layer and the warmed body shell and form single face metallic film occluded air interbed.This is a basic model of the present utility model.As improvement, in warmed body appearance temperature below 300 ℃ the time, can be to be adhesive with metallic film on the warmed body shell.Be separated by with grommet between adiabator layer and the warmed body shell, form double-sided metal membrane closure air space.Another kind is improved to, and at first wraps one deck fiber heat preservation material layer on the warmed body shell, and as inner thermal insulating layer, it is between grommet, and thickness is less than the grommet height.More than 300 ℃ the time, should use the refractory fiber thermal insulating material to do inner thermal insulating layer in warmed body appearance temperature.At the inner thermal insulating layer outer surface to be adhesive with metallic film.Wrap in the fiber heat preservation material layer on the grommet and wrap between the inner thermal insulating layer on the warmed body shell, being separated by with grommet forms double-sided metal membrane closure air space.Outside adiabator layer, to be surrounded by protective layer, and with the thermal insulation layer of the fixedly connected warmed body of fastening connection piece.Protective layer is outer to be adhesive with metallic film.This prevents that to the low temperature warmed body dewfall is particularly important, can reduce the heat-energy losses that heat causes to external radiation to the high temperature warmed body.Metallic film is meant aluminium foil and composite material or vacuum aluminum-coated plastic pellicle and composite material.More than 100 ℃ during serviceability temperature, use aluminium foil and composite material.

Advantage of the present utility model is: high-temperature service, container, pipeline appearance temperature can reach 100 ℃ to thousands of degree.Caloradiance is directly proportional with the biquadratic of kelvin temperature.Therefore, the outside thermal radiation of warmed body is very strong.In thermal insulation layer, there is not metallic film obviously can cause very serious radiation loss of heat.In the low temperature warmed body, because cooling is more much bigger than the power consumption that heats up, therefore also very high to the requirement that prevents radiative heat transfer.The occluded air interbed itself is good thermal insulation layer, and again major part being conducted heat simultaneously is converted into the thermal radiation heat transfer.Metallic film has reflectivity and the extremely low radiance high to thermal radiation, therefore can intercept most thermal radiation.Metallic film, occluded air interbed, the novel heat insulation layer that the fiber heat preservation material layer is formed, more in the past than the thermal insulation layer of being made up of single adiabator layer, insulation effect can increase substantially.

The concrete structure of model utility is provided by following examples and accompanying drawing thereof.(all not marking adhesive and fastening connection piece in the accompanying drawing).

Embodiment 1:

Fig. 1 is the section of structure of heat distribution pipeline thermal insulation layer.(pipeline does not cut open)

Among Fig. 1: 1 is grommet, and 2 is the cotton pipe box of glass, and 3 is aluminum foil composite, and 4 is protective layer, and 5 is the occluded air interbed.

The a plurality of grommets 1 of fixed interval on pipeline, the cotton pipe box 2 of glass that interior outside is stained with aluminum foil composite 3 wraps on the grommet.Be separated by with grommet between cotton pipe box of glass and the pipeline and form single face metallic film occluded air interbed 5.The cotton pipe box outsourcing of glass protective layer 4.With the fixedly connected pipe insulating layer of fastening connection piece.

Embodiment 2:

Fig. 2 is a cuboid shape low-temperature (low temperature) vessel heat insulation layer structure sectional drawing.(container does not cut open)

Among Fig. 2: 1 is grommet, and 2 is the cotton plate of glass, and 3 is aluminum foil composite, and 4 is protective layer, and 5 is the occluded air interbed.

On the shell of low-temperature (low temperature) vessel,, a plurality of grommets 1 are fixed on the shell of container, inside and outside two sides is fixed on the grommet with the cotton plate 2 of the glass that is adhesive with aluminum foil composite 3 with gluing one deck aluminum foil composite 3.Making between cotton flaggy of glass and the shell of tank is separated by with grommet forms double-sided metal membrane closure air space 5.At the cotton flaggy outsourcing of glass protective layer 4.The protective layer appearance is to be adhesive with aluminum foil composite 3.With the fixedly connected vessel insulation layer of fastening connection piece.

Embodiment 3:

Fig. 3 is the section of structure of appearance temperature at the high-temperature service thermal insulation layer more than 300 ℃.(equipment does not cut open)

Among Fig. 3: 1 is grommet, and 2 is the cotton plate of glass, and 3 is aluminum foil composite, and 4 is protective layer, and 5 is the occluded air interbed, and 6 is the refractory fiber adiabator plate.

The a plurality of grommets 1 of fixed interval on the shell of high-temperature service.Between grommet, bag one deck refractory fiber adiabator plate 6 on the device housings.Refractory fiber adiabator plate outer surface is to be adhesive with aluminum foil composite 3.The grommet height is greater than the thickness of flameretardant fibre board.Inner and outer surface is fixed on the grommet with the cotton plate 2 of the glass that is adhesive with aluminum foil composite 3.Between the cotton flaggy of refractory fiber thermal insulating material flaggy and glass, being separated by with grommet forms metallic film occluded air interbed 5.The cotton flaggy outsourcing of glass matcoveredn 4.With the fixedly connected insulation of equipment layer of fastening connection piece.

Claims

1, a kind of high and low-temperature apparatus, container, pipe insulating layer, be by the fiber heat preservation material layer on the warmed body shell, the protective layer of fiber heat preservation material layer outsourcing and fastening connection piece are formed, it is characterized in that: a plurality of grommets of fixed interval on the shell of warmed body, fiber heat preservation material layer inner and outer surface wraps on the grommet to be adhesive with metallic film; Be separated by with grommet between adiabator layer and the warmed body shell and form single face metallic film occluded air interbed.

2, equipment according to claim 1, container, pipe insulating layer, it is characterized in that: in warmed body appearance temperature below 300 ℃ the time, can be on the warmed body shell being adhesive with metallic film, being separated by with grommet between fiber heat preservation material layer and the warmed body shell forms double-sided metal membrane closure air space.

3, equipment according to claim 1, container, pipe insulating layer is characterized in that: can wrap one deck fiber heat preservation material layer on the warmed body shell, as inner thermal insulating layer; More than 300 ℃ the time, inner thermal insulating layer should use the refractory fiber thermal insulating material in warmed body appearance temperature; At the outer surface of inner thermal insulating layer to be adhesive with metallic film; The thickness of inner thermal insulating layer is less than the height of grommet; Wrap in the fiber heat preservation material layer on the grommet and directly wrap between the inner thermal insulating layer on the warmed body shell, being separated by with grommet forms double-sided metal membrane closure air space.

4, equipment according to claim 1, container, pipe insulating layer is characterized in that: the protective layer outer surface can be adhesive with metallic film.

5, equipment according to claim 1, container, pipe insulating layer is characterized in that: metallic film is meant aluminium foil and composite material or vacuum aluminum-coated plastic pellicle and composite material; To use aluminium foil and composite material during serviceability temperature more than 100 ℃.