CN200943780Y

CN200943780Y - Fire-resistant heat-insulation nylon hose

Info

Publication number: CN200943780Y
Application number: CN 200620034452
Authority: CN
Inventors: 杨世奉; 杨伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-31
Filing date: 2006-05-31
Publication date: 2007-09-05
Anticipated expiration: 2016-05-31

Abstract

The utility model discloses an fire-resisting heat insulation nylon tube which is composed of a tube cavity and a tube body, and is characterized in that a nylon tube layer (1), a metal wire winding layer (2), a heat insulatation flame-retardant material layer (3), a metal braiding layer (4), a fire-resisting fiber cloth layer (5) and a polyurethane flame-retardant layer (6) are respectively arranged from the interior to the exterior of the nylon tube. The utility model has the advantages of anti-abrasion, heat insulation, corrosion resistance, anti-aging and self-extinguishing function, thereby prolonging the service life of the high-voltage tube. Meanwhile, the flame-retardant heat insulation material with high fire-resisting flame-retardant performance is utilized to reduce the thickness of the tube body and reduce the weight of the tube body and the labor intensity of the hamaul.

Description

The refractory heat-insulating nylon hose

Technical field

The utility model relates to a kind of liquid or air shooter, especially a kind of refractory heat-insulating nylon hose.

Background technique

The defeated material flexible pipe of industries uses such as metallurgy, chemical industry mostly is rubber hose or polyurethane flexible pipe at present, for increasing the compressive strength of flexible pipe, in the middle of flexible pipe, set up metal knitted reinforced layer, strengthen flexible pipe, in the middle of the polyurethane flexible pipe, be provided with 1-3 layer braided steel wire layer as Chinese patent 03121929.2 disclosed polyurethane, each steel wire floor all needs bonding mutually with tackiness agent, the flexible pipe complex process of this structure, compression resistance is less relatively, has not both had fire-retardant effect, thermo-labile again fire-resistant, restricted its using scope.Chinese patent 92104811 disclosed refractory heat-insulating hoses and for example, its structure is that the rubber innermost tube is provided with the fire resistant coating layer outward, fire protection flame retarding fabric layer and web layer, and final layer is protection jacket layer instant heating sol rubber, fire resistant coating or bellows, though this flexible pipe has certain insulating refractory effect, but there is following defective in it: inner core tube and sheath are not high pressure resistant, easily are corroded, and be very easily aging, heat-insulating flame-retardant effect and bending radius etc. are all unsatisfactory, and thickness of pipe wall, from great, cost of production is higher.Above-mentioned two patents all exist layer material preparation reasonable inadequately, cause function to be difficult to satisfy High Temperature High Pressure and crooked requirement.

The model utility content

The purpose of this utility model is to overcome prior art a kind of insulating refractory better function is provided, and in light weight, bending radius is little, and bearing capacity is good, the refractory heat-insulating nylon hose and the production method thereof of long service life.The utility model purpose realizes by following technical proposals: comprise tube chamber and body, outwards be followed successively by the nylon tube layer in the body, wire winding layer, heat-insulating flame-retardant material layer, wire sheathing, refractory fiber layer of cloth and polyurethane flame retardant layer.

Said heat-insulating flame-retardant material layer is sheet band coating or injection molded layers, and the heat-insulating flame-retardant material is formulated by following component and weight portion; Chlorinated paraffin liquid: haloflex: asbestos wool: antimonous oxide: aluminium hydroxide: solid chloroparaffin: alumina silicate: abrasion resistant carbon black=6-8: 6-8: 9-11: 1-3: 2-3: 2-3: 6-8: 0.3-0.8, above-mentioned each component mixing is heated to 40-60 ℃ after rubbing into the dough shape on the rubber mixing machine, pricks the tablet forming band shape, or be coated on outside the nylon tube that twines metal wire layer twines by extruder with pricking the glue machine.

Said polyurethane flame retardant layer is polyurethane and Sb ₂O ₃Mix the bed of material, the two proportions of ingredients is 9: 0.5-1.

Making method of the present utility model is as follows:

A, inner core tube are made: get 110-120 ℃ of oven dry of nylon raw material particle (2-3 hour), add the extruder hopper, start power plant, under 180-200 ℃ of condition, extrude, pass through vacuum system and bosh, and draw flexible pipe through traction gear, pipe thickness is between 2-5mm.Said nylon is nylon 6, nylon 10, and nylon 11, nylon 12, nylon 66 grades all can.

B, curl wire: earlier with Stranding machine by number of share of stock requirements with the wire plying, outside inner core tube, twine 1-4 layer iron wire or steel wire or iron platinum filament with winding machinery or manual tool behind the plying.

C, coating or parcel heat-insulating flame-retardant material layer: will make doughy heat-insulating flame-retardant material and place the extruder hopper, to wind flexible pipe wiry passes from mould, adjust hauling speed and reach predetermined thickness, adjust adjusting screw, guarantee coating layer and inner core flexible pipe concentricity.Also the heat-insulating flame-retardant material of making dough can be made the sheet band shape by extrusion press swathes outside twining flexible pipe wiry again.

D, with the above-mentioned flexible pipe braided metal braid on knitting machine that is covered with the anti-flaming thermal-insulation material layer.

E, more on request at the fire-resistant fine cloth of wire sheathing outer wrapping 1-3 layer.

F, apply one deck polyurethane flame-proof layer more at last: earlier with polyurethane and fire retardant Sb ₂O ₃Apply the heat-insulating flame-retardant material layer by the inner core tube making method behind the mixing.

From above-mentioned situation as can be known the purpose of this utility model can realize.

The utility model mainly utilizes the Buddhist nun to expect that material has very high mechanical strength, and is wear-resistant, heat-resisting, corrosion-resistant, anti-aging, the self-extinguish ability function is arranged, prolonged the working life of high pressure hose greatly, can make the high pressure hose safe handling more than 5 years, improve nearly one times than rubber hose, utilize the high anti-flaming thermal-insulation material of anti-flaming thermal-insulation fire performance simultaneously, both reduced body thickness, alleviate body weight and porter's intensity, also reduced the bending radius of pipe.The utility model product detects through national petroleum industry well control device quality supervision and test center, boost to 53.4Mpa, voltage stabilizing 30 minutes, body and joint ne-leakage, illustrate that the utility model high voltage performance is good, simultaneously 780 ℃ of torch firings of working pressure 35.0Mpa temperature after 3 minutes pressure be warming up to 810 ℃ of still ne-leakages, pipe inner structure no change, illustrate that the utility model product is heat insulation, fire-resistant, flame retardant property is good

Description of drawings

Fig. 1 is the utility model structural representation.

Embodiment

Embodiment 1, and as shown in Figure 1, the utility model body is followed successively by nylon tube layer 1 from inside to outside, wire winding layer 2, heat-insulating flame-retardant material layer 3, wire sheathing 4, refractory fiber layer of cloth 5 and polyurethane flame retardant layer 6.

Making method of the present utility model is as follows:

A, inner core tube are made: basic identical with the common plastics tube making method, promptly get 110-120 ℃ of oven dry of nylon raw material particle 2 hours, add the extruder hopper, start power plant, under 180-200 ℃ of condition, extrude, pass through the vacuum system bosh, and draw flexible pipe through traction gear, pipe thickness is at 5mm.

B, curl wire: earlier with Stranding machine by number of share of stock requirements plying, wire plying single data caliber size is come definite, generally number of share of stock is the 6-32 thigh, twines 1-4 layer iron wire with Stetch Wrapping Machine outside inner core tube again.

C, apply the heat-insulating flame-retardant material layer: accurately take by weighing the heat-insulating flame-retardant material feedstock by following weight ratio, chlorinated paraffin liquid: haloflex: asbestos wool: antimonous oxide: aluminium hydroxide: solid chloroparaffin: alumina silicate: abrasion resistant carbon black=6-8: 6-8: 9-11: 1-3: 2-3: 2-3: 6-8: 0.3-0.8, present embodiment is selected 7 kilograms of chlorinated paraffin liquid for use, 7 kilograms of haloflexes, 10 kilograms of asbestos wools, 1 kilogram of antimonous oxide, 2.5 kilograms in aluminium hydroxide, 2.5 kilograms of solid chloroparaffins, 7 kilograms of alumina silicate, 0.5 kilogram of abrasion resistant carbon black, above-mentioned each component mixing is heated to 40-60 ℃, on rubber mixing machine, rub into the dough shape, will make doughy heat-insulating flame-retardant material and place the extruder hopper, will wind flexible pipe wiry and from mould, pass, adjust hauling speed and reach predetermined thickness, adjust adjusting screw, coating is extruded in start, guarantees coating layer and inner core flexible pipe concentricity.

D, at braided metal braid on the knitting machine: at first with Stranding machine with the wire plying and be wound on the bobbin of spindle, adjust the rate of tension of line, the pipe that will be coated with the heat-insulating flame-retardant material layer again is connected with tractor afterwards that the startup knitting machine weaves.

E, more on request at two layers of glass fibre cloth of wire sheathing outer wrapping.

F, apply one deck polyurethane flame-proof layer more at last, said polyurethane flame retardant layer is polyurethane and Sb ₂O ₃Mixture, the two proportions of ingredients are 9: 0.5-1, present embodiment selected for use 9: 1.Mixture is extruded coating by extruder again under 180-200 ℃ of condition.

Claims

1, a kind of refractory heat-insulating nylon hose, comprise tube chamber and body, it is characterized in that: body is followed successively by nylon tube layer (1) from inside to outside, wire winding layer (2), heat-insulating flame-retardant material layer (3), wire sheathing (4), refractory fiber layer of cloth (5) and polyurethane flame retardant layer (6).