CN2151855Y

CN2151855Y - Composite layer structure insulation material

Info

Publication number: CN2151855Y
Application number: CN 91232904
Authority: CN
Inventors: 张春宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-12-31
Filing date: 1991-12-31
Publication date: 1994-01-05
Anticipated expiration: 2001-12-31

Abstract

The utility model provides an insulation material with a composite layer structure, which relates to a novel insulation material and is especially suitable for the insulation of a high temperature body. The utility model is characterized in that the inner layer of the insulation material is made by adopting the composite form of the mineral wool and the polyurethane materials, the outer layer of the insulation material is a polyurethane foam tile (board), an air layer is formed between the inner and the outer layers, and the inner and the outer surfaces of the outer layer are sprayed with mercury to form a heat counter radiation layer. The insulation material integrates the advantages of two materials of the mineral wool and the polyurethane, and a heat transmission method is blocked effectively. The insulation material can be used widely for the insulation work of chemical industries, buildings, process pipelines, mines, cold storages, refrigerators and oil fields.

Description

Composite layer structure insulation material

The utility model belongs to a kind of insulation material of new structure, particularly a kind of insulation material that is used for high-temperature body.

The existing material category that is used for the insulation aspect is more, and common have insulation materials such as rock wool, perlite, felt, mineral wool, polyurethane foam plastics, can obtain certain heat insulation effect though use these materials, and they all exist not enough aspect.For example rock wool is mingled with many glass fibres, influences workmen's health during construction; Perlite thickness and weight are bigger, and cracking infiltration easily, reduce heat insulation effect; Mineral wool department wet at water and the grease seepage can not use; Though polyurethane foam is than above-mentioned different materials advanced person, it is not easy to the insulation to high-temperature body, when insulation body surface temperature surpasses 120 ℃, will produce aging, metaboly, has shortened the insulation cycle and this material heat insulating work expense is higher.Patent documentation since in 1985 by retrieval, find the patent No. 88210316, name is called the utility model patent of " sandwich construction heat insulation tile ", this watt adopts the linear pad of the horizontal adding of corrugated paper and the bonding back of thin aluminium foil to roll and forms, because the space between space between the corrugated paper corrugation and layer and the layer, has very little thermal conductivity factor, add the anti-heat radiation effect of thin aluminium foil, thereby having intercepted heat effectively scatters and disappears, can obtain comparatively desirable heat insulation effect, yet though because corrugated paper belongs to fibrous material in advance through steeping colored alkali immersion treatment, under hot environment, toast for a long time, the cellulosic carbonization phenomenon will occur, be not easy to insulation high-temperature body.In addition, because the button of this kind heat insulation tile seam and the joint sealing between forward and backward watt are not tight, cause heat to scatter and disappear easily.Again on the one hand, because the aluminium foil price is comparatively expensive, strengthened the cost of heat insulating work.

The purpose of this utility model just provides a kind of insulation material of lamination layer structure, it overcome " sandwich construction heat insulation tile " be difficult for be applied to high-temperature body insulation, bad sealing and with the high deficiency of aluminium foil cost, and than other insulation material have high insulating effect, cost is low, intensity is high, service time is long, in light weight, water imbibition is little, the advantage of easy operating.

The technical solution of the utility model is achieved in that

Be compounded to form inner layer material with mineral wool and polyurethane material; Form cladding material at the inside and outside surface spraying of polyurethane foamed material mercury; Inside and outside layer material overlaps, intussusception, and the mode by embedding mutually end to end, perhaps relies on the outer surface fin of inner layer material to make between the inside and outside layer and forms air layer; At outer field surrounded external protection.When carrying out pipe insulation with this material, the inside and outside layer of each joint tube is formed by two semi-cylindrical shaped watt make-ups respectively, and the button seam do not coincide, and is that afterbody that head by back one joint tube embeds last joint tube connects and forms between every joint tube; Wherein two straight flanges of internal layer watt have fin or groove, form the connecting mode of mutual insertion during make-up.When this material was used for plane or special-shaped vessel insulation, the air layer between the inside and outside layer was by attached to the fin on the inner layer outer surface at interval.

The utility model is compared with existing insulation material, particularly compares with " sandwich construction heat insulation tile ", has following advantage and good effect.

The first, be applicable to insulation and high insulating effect to high-temperature body.Because the internal layer of this material adopts the composite construction form of mineral wool and polyurethane foam, thereby combine the advantage of these two kinds of materials, overcome the shortcoming of simple polyurethane foam or cellulosic corrugated paper non-refractory simultaneously.

The second, sealing is tight.Particularly when this material is applied to pipe insulation, because the head of every joint tube embeds the afterbody of last joint tube, and two straight flanges of internal layer watt have fin or groove, form mutual plug-in type connecting mode during two slices watts of make-ups, guaranteed the strictness sealing between joint and the joint, heat scatters and disappears few.In addition, have certain angle at interval because inside and outside layer watt button is sewn on the space, it is few to have guaranteed that also button seam place heat scatters and disappears.

The 3rd, compare with " sandwich construction heat insulation tile ", the utlity model has advantage with low cost.Introduction had been done in the front, and " sandwich construction heat insulation tile " is to be bonded by aluminium foil and corrugated paper, and the aluminium foil price is more expensive, and be difficult for corrugated paper bonding, fragmentation easily when rolling.The utility model adopts the method at inside and outside laminar surface spraying mercury, has both played the antiradiation effect to heat, has overcome the high shortcoming of cost again.

The 4th, the utility model has also that manufacture technology is simple, and installation is easy to maintenance, and is free from environmental pollution, and capacity is less, and thermal conductivity factor is low, the intensity height, and good flame resistance, durability is long, and water imbibition is little, antidetonation, anticorrosive, remarkable advantages such as sound insulation.

The utility model lamination layer structure insulation material, its heat preservation principle is such:

The mineral wool of internal layer and the thermal conductivity factor of polyurethane foam are little, and wherein are mingled with many minor air cells, and the air layer of adding between the inside and outside layer all has less thermal conductivity factor, has intercepted hot conductive process.Owing to adopt strict seal means to intercept the convection of heat process.Because the mercury spraying method is adopted on outer inside and outside surface, has formed hot antiradiation system.In a word, the structure of this material has intercepted three kinds of transfer modes of heat fully and effectively, thereby can obtain heat insulation effect well.

Description of drawings of the present utility model is as follows:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the upward view of the utility model internal layer watt.

Fig. 3 is the structural representation of the utility model when being applied to the insulation of plane body or obform body.

Fig. 4 is the A-A profile of Fig. 3.

Fig. 5 is the upward view of outer watt of the utility model.

Below with embodiment the utility model is further elaborated:

Embodiment 1: as Fig. 1,2, shown in 5,1. 6 inches pipes are incubated, at first being pressed into internal diameter with rock wool is two semi-cylindrical shapeds watt of 6 inches, watt be that matrix is put into the mould tire that size shape matches with rock wool then, it is molded to add blown polyurethane, watt 2. form internal layer, it is shaped as semi-cylindrical shaped, two straight flanges have fin 6. or groove 7., head forms the semicircle boss, afterbody has groove, the thickness of internal layer watt is 2cm, be the in addition polyurethane foam blowing of mould tire of 18cm with internal diameter again, make skin watt 3. some joints as shown in Figure 5, in outer watt, outer surface spraying mercury layer 9..Earlier with two slices watts of make-ups on the insulation pipe of internal layer, the head of back one joint tube is embedded the afterbody of last joint, more outer watt also is enclosed within on the internal layer watt in the mode that embeds mutually end to end, wrap glass steel tile at last outside and get final product.

Embodiment 2: the square hot blast bucket to 80cm * 50cm is incubated, with the compound plate internal layer of making 83cm * 53cm * 50cm of rock wool and polyurethane foam watt, 8. its surface has three fins, make outer watt of the polyurethane of onesize shape again with corresponding mould tire, its inside and outside surface spraying mercury, then earlier with internal layer splicing-in watt on the hot blast bucket, overlapping again skin watt is wrapped galvanized iron sheet at last outside.

Claims

1, a kind of insulation material of lamination layer structure, by internal layer 2., 4. skin reach that 5. external protection overlaps, intussusception forms, it is characterized in that:

A, internal layer are to be composited by mineral wool and polyurethane foam;

B, skin are 9. to be formed by the inside and outside surface spraying of polyurethane material mercury;

Between c, the inside and outside layer by 8. forming air layer 3. at interval attached to the fin on the inner layer outer surface.

2,, it is characterized in that when this material is used for pipe insulation the inside and outside layer of every joint bucket forms and detains seam by two semi-cylindrical shaped watt make-ups respectively and do not coincide according to the insulation material of the described a kind of lamination layer structure of claim 1.

3, according to the insulation material of claim 1 or 2 described a kind of lamination layer structures, when it is characterized in that this material is used for pipe insulation, be that afterbody that head by back one joint tube embeds last joint tube connects and forms between every joint tube, and therefore formed the air layer between the inside and outside layer.

4, according to the insulation material of claim 1 or 2 described a kind of lamination layer structures, when it is characterized in that this material is used for pipe insulation, two straight flanges of internal layer watt have fin 6. or groove 7., form the connecting mode of mutual insertion during two slices watts of make-ups.

5, according to the insulation material of the described a kind of lamination layer structure of claim 3, when it is characterized in that this material is used for pipe insulation, two straight flanges of internal layer watt have fin 6. or groove 7., form the connecting mode of mutual insertion during two slices watts of make-ups.