CN216813223U - Industrial copolymerization mixed-modification flame-retardant smoke-suppression PVC pipe - Google Patents

Abstract

The utility model discloses an industrial copolymerization mixed-modified flame-retardant smoke-suppressing PVC pipe, which comprises: the PVC pipe body and attached to interior bushing pipe and the outer flame retardant coating of PVC pipe body internal and external surface, the both ends on outer flame retardant coating are equipped with cramp and catching groove of mutual adaptation respectively, and outer flame retardant coating passes through cramp and catching groove end to end lock joint and cup joints in the outside of PVC pipe body, and interior bushing pipe surface is equipped with a plurality of anticreep points. According to the utility model, the inner lining sleeve and the outer flame-retardant layer structure are respectively arranged on the inner side and the outer side of the PVC pipe body, the flame-retardant sleeving connection of the outer side of the pipe is realized by using the outer flame-retardant layer structure, the pipe melting damage caused by external fire is avoided, the heat insulation protection is carried out, the tolerance of the PVC pipe in heat flow and corrosive liquid flow conveying is avoided by using the inner protection structure of the inner lining sleeve, and the service life of the pipe body is prolonged.

Description

Industrial copolymerization mixed-modified flame-retardant smoke-suppression PVC pipe

Technical Field

The utility model relates to the technical field of PVC (polyvinyl chloride) pipes, in particular to an industrial copolymerized flame-retardant smoke-suppression PVC pipe.

Background

The PVC-U pipe is widely applied to the field of water supply and drainage and has the advantages of acid resistance, alkali resistance, corrosion resistance, internal pressure bearing and the like. However, the PVC-U pipe has poor impact resistance, brittle low-temperature performance, insufficient flame retardance, smoke generation during combustion, no high temperature resistance and limited corrosion resistance, and the defects are not favorable for the application of the PVC-U pipe in the fields of industrial media and hot water conveying.

In view of this, research and improvement are made to solve the existing problems, and an industrial copolymerized flame-retardant smoke-suppression PVC pipe is provided to solve the problem of the physical and chemical property defects of the copolymerized PVC pipe, and the purpose of solving the problems and improving the practical value is achieved by the technology.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving one of the technical problems of the prior art or the related art.

Therefore, the technical scheme adopted by the utility model is as follows: an industrial copolymerization mixed-modified flame-retardant smoke-suppressing PVC pipe comprises: the PVC pipe body and attached to interior bushing pipe and the outer flame retardant coating of PVC pipe body internal and external surface, the both ends on outer flame retardant coating are equipped with cramp and catching groove of mutual adaptation respectively, outer flame retardant coating cup joints in the outside of PVC pipe body through cramp and catching groove end to end lock joint, interior bushing pipe surface is equipped with a plurality of anticreep points, the inboard that is fixed in the PVC pipe body is pasted to the one end of anticreep point, the outside of interior bushing pipe is equipped with the thermal-insulated protruding grain of intensive distribution.

The present invention in a preferred example may be further configured to: the PVC pipe body is of a copolymerized PVC extrusion molding structure, and the PVC pipe body is coated on the outer side of the lining sleeve.

By adopting the technical scheme, the pipe body structure is formed by the PVC pipe body and the inner bushing pipe, and liquid flow medium conveying is carried out.

The present invention in a preferred example may be further configured to: the outer flame-retardant layer is an asbestos cloth component, and the thickness of the outer flame-retardant layer is 3-5 mm.

By adopting the technical scheme, the flame-retardant and heat-insulating asbestos cloth is adopted as the outer wrapping structure of the copolymerized mixed PVC pipe, so that flame retardance, smoke suppression and low-temperature brittleness of the outer side of the pipe are realized, and the structure of the pipe body is protected.

The present invention in a preferred example may be further configured to: the catching groove is of a square structure, the inner side of the catching groove is provided with a catching hole matched with the catching piece in size and shape, and the inner side of the outer flame-retardant layer and the outer wall of the PVC pipe body are coated with an adhesive layer.

Through adopting above-mentioned technical scheme, through the cramp with the knot of catching groove open and the viscose layer is fixed in outer fire-retardant layer in PVC body surface, avoid outer fire-retardant layer inflation under the unexpected high temperature condition such as conflagration to drop.

The utility model in a preferred example may be further configured to: the height of anticreep point is 1-2mm, the anticreep point is high temperature resistant polyethylene material component, the protruding height of thermal-insulated protruding grain is less than 1mm, the quantity of anticreep point is a plurality of and be even interval distribution in inside lining sheathed tube surface.

Through adopting above-mentioned technical scheme, utilize the anticreep point to realize that the connection of inside lining sleeve pipe and PVC body is fixed, form a top gap with the PVC body is inboard between the thermal-insulated protruding grain that distributes densely for the heat-conduction of isolated medium realizes the function that gives sound insulation.

The present invention in a preferred example may be further configured to: the lining sleeve is of a stainless steel pipe sleeve structure, and the thickness of the lining sleeve is smaller than 1 mm.

By adopting the technical scheme, the corrosion resistance of the pipe is enhanced by adopting the stainless steel lining, and the heat flow and the conveying of corrosive media are realized.

The beneficial effects obtained by the utility model are as follows:

1. according to the utility model, the inner lining sleeve and the outer flame-retardant layer structure are respectively arranged on the inner side and the outer side of the PVC pipe body, the flame-retardant sleeving connection of the outer side of the pipe is realized by using the outer flame-retardant layer structure, the pipe melting damage caused by external fire is avoided, the heat insulation protection is carried out, the tolerance of the PVC pipe in heat flow and corrosive liquid flow conveying is avoided by using the inner protection structure of the inner lining sleeve, and the service life of the pipe body is prolonged.

2. According to the utility model, the inner lining sleeve structure layer is arranged, the erosion and high-heat damage of the flowing medium inside the inner lining sleeve to the pipe body are isolated by the inner lining sleeve, and the propping gaps are formed between the densely distributed heat insulation convex particles and the inner side of the PVC pipe body for isolating the heat conduction of the medium and realizing the sound insulation function, and the corrosion resistance of the copolymerized PVC pipe is further improved by adopting the stainless steel lining.

Drawings

FIG. 1 is a schematic overall structure diagram of one embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a schematic view of an installation structure of an inner liner according to an embodiment of the present invention.

Reference numerals:

100. a PVC pipe body;

200. an outer flame retardant layer; 210. buckling pieces; 220. buckling grooves;

300. a liner sleeve; 310. heat insulation convex particles; 320. and (4) preventing dropping points.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.

It is to be understood that this description is made only by way of example and not as a limitation on the scope of the utility model.

The following describes an industrial copolymerized mixed flame-retardant smoke-suppression PVC pipe provided by some embodiments of the utility model with reference to the accompanying drawings.

Referring to fig. 1-3, the utility model provides an industrial copolymerized flame-retardant smoke-suppressing PVC pipe, comprising: PVC body 100 and attached to interior bushing 300 and the outer flame retardant coating 200 of PVC body 100 internal and external surface, the both ends on outer flame retardant coating 200 are equipped with cramp 210 and catching groove 220 of mutual adaptation respectively, outer flame retardant coating 200 cup joints in the outside of PVC body 100 through cramp 210 and catching groove 220 end to end lock joint, interior bushing 300 surface is equipped with a plurality of anticreep points 320, the inboard that is fixed in PVC body 100 is pasted to the one end of anticreep point 320, the outside of interior bushing 300 is equipped with thermal-insulated protruding grain 310 of intensive distribution.

In this embodiment, the PVC pipe 100 is a co-PVC extrusion molding structure, the PVC pipe 100 is wrapped outside the liner sleeve 300, and the PVC pipe 100 and the liner sleeve 300 form a pipe structure for transporting the fluid medium.

In this embodiment, the outer flame-retardant layer 200 is made of asbestos cloth, and the thickness of the outer flame-retardant layer 200 is 3-5 mm.

Specifically, the flame-retardant and heat-insulating asbestos cloth is used as an outer wrapping structure of the copolymerization mixed modified PVC pipe, so that flame retardance, smoke suppression and low-temperature brittleness of the outer side of the pipe are realized, and the structure of the pipe body is protected.

In this embodiment, the fastening slot 220 is a square structure, and the inner side of the fastening slot is provided with a fastening hole with a size and a shape matching with those of the fastening piece 210, and the inner side of the outer flame retardant layer 200 and the outer wall of the PVC pipe 100 are coated with an adhesive layer.

Specifically, the outer flame-retardant layer 200 is fixed on the surface of the PVC pipe 100 through the buckling of the buckle pieces 210 and the buckle grooves 220 and the adhesive layer, so that the outer flame-retardant layer 200 is prevented from swelling and falling off under the unexpected high-temperature conditions such as fire.

In this embodiment, the height of the anti-separation points 320 is 1-2mm, the anti-separation points 320 are made of high temperature resistant polyethylene, the height of the heat insulation convex particles 310 is less than 1mm, and the number of the anti-separation points 320 is several and is uniformly distributed on the surface of the liner sleeve 300 at intervals.

Specifically, the inner liner sleeve 300 is fixedly connected with the PVC pipe 100 by using the anti-dropping points 320, and a supporting gap is formed between the densely distributed heat-insulating convex particles 310 and the inner side of the PVC pipe 100 to insulate the heat conduction of the medium and realize the sound insulation function.

In this embodiment, the inner bushing 300 is a stainless steel bushing structure, and the thickness of the inner bushing 300 is less than 1mm, and the stainless steel lining is used to enhance the corrosion resistance of the pipe, so as to realize the transportation of heat flow and corrosive media, and reduce the material cost due to the lower thickness.

In the present invention, the term "plurality" means two or more unless explicitly defined otherwise. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

It will be understood that when an element is referred to as being "mounted to," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. An industrial copolymerization mixed-modified flame-retardant smoke-suppressing PVC pipe is characterized by comprising: PVC body (100) and attached to interior bushing pipe (300) and outer flame retardant coating (200) of PVC body (100) internal and external surface, the both ends on outer flame retardant coating (200) are equipped with cramp (210) and catching groove (220) of mutual adaptation respectively, outer flame retardant coating (200) are through cramp (210) and catching groove (220) end to end lock joint in the outside of PVC body (100), interior bushing pipe (300) surface is equipped with a plurality of anticreep points (320), the inboard that is fixed in PVC body (100) is pasted to the one end of anticreep point (320), the outside of interior bushing pipe (300) is equipped with thermal-insulated protruding grain (310) that the concentration distributes.

2. The industrial copolymerized and modified flame-retardant smoke-suppressing PVC pipe material as claimed in claim 1, wherein said PVC pipe body (100) is a copolymerized PVC extrusion molding structure, said PVC pipe body (100) is wrapped outside the inner lining sleeve (300).

3. The industrial copolymerized and blended flame-retardant smoke-suppressing PVC pipe material as claimed in claim 1, wherein the outer flame-retardant layer (200) is a member made of asbestos cloth, and the thickness of the outer flame-retardant layer (200) is 3-5 mm.

4. The industrial copolymerized flame-retardant smoke-suppressing PVC pipe as claimed in claim 1, wherein said fastening groove (220) is of a square structure and has fastening holes on its inner side for matching the size and shape of said fastening piece (210), and the inner side of said outer flame-retardant layer (200) and the outer wall of said PVC pipe body (100) are coated with adhesive layer.

5. The industrial copolymerized, blended, flame-retardant and smoke-suppressing PVC pipe as claimed in claim 1, wherein the height of said anti-dropping point (320) is 1-2mm, the height of said heat-insulating raised particles (310) is less than 1mm, and said anti-dropping point (320) is made of high temperature resistant polyethylene.

6. The industrial copolymerized, modified and flame-retardant smoke-suppressing PVC pipe as claimed in claim 1, wherein said anti-dropping points (320) are several in number and uniformly spaced on the surface of the inner lining sleeve (300).

7. The industrial copolymerized, blended and modified flame-retardant and smoke-suppressed PVC pipe material as claimed in claim 1, wherein the inner lining sleeve (300) is of a stainless steel pipe sleeve structure, and the thickness of the inner lining sleeve (300) is less than 1 mm.

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