CN212827168U

CN212827168U - Fireproof hot-galvanized pipe

Info

Publication number: CN212827168U
Application number: CN202020251258.XU
Authority: CN
Inventors: 华嘉
Original assignee: Yangzhou Jiahua Pipe Industry Co ltd
Current assignee: Yangzhou Jiahua Pipe Industry Co ltd
Priority date: 2020-03-03
Filing date: 2020-03-03
Publication date: 2021-03-30
Anticipated expiration: 2030-03-03

Abstract

The utility model relates to a tubular product specifically indicates a fire prevention hot dip galvanized pipe, including the zinc-plating body, encircle the zinc-plating body has set gradually first flame retardant coating, heat preservation, second flame retardant coating and casing from inside to outside, first flame retardant coating is silica aerogel material, the heat preservation is the polyurethane foaming body, the flame retardant coating is the silica sand material, the casing includes casing and lower casing, the both sides of going up the casing and the mutual one end that is close to of casing down outwards extend respectively and form the extension board, and be formed with corresponding first screw hole on the extension board of last casing and lower casing, go up casing and lower casing and pass through bolt fixed connection. The first fireproof layer and the second fireproof layer are arranged outside the galvanized pipe body, so that the device has good fireproof and insulating properties; the heat-insulating layer is arranged, the low-temperature resistance of the galvanized pipe is improved, and the hollow cellular polyurethane foam body has a good heat-insulating effect.

Description

Fireproof hot-galvanized pipe

Technical Field

The utility model relates to a tubular product specifically indicates a fire prevention hot dip galvanized steel pipe.

Background

Hot-dip galvanized pipe is a pipe in which molten metal reacts with an iron substrate to produce an alloy layer, thereby bonding both the substrate and the coating. The steel pipe matrix and the molten plating solution are subjected to complex physical and chemical reactions to form a corrosion-resistant zinc-iron alloy layer with a compact structure, and the alloy layer, the pure zinc layer and the steel pipe matrix are integrated into a whole, so that the steel pipe matrix has strong corrosion resistance. At present, the hot dip galvanized steel pipe has the advantages of good corrosion resistance, long service life and the like, and is widely applied to the fields of buildings, machinery, coal mines, chemical industry, electric power, railway vehicles, automobile industry and the like.

Traditional hot dip galvanized pipe has corrosion resistance, but needs hot dip galvanized pipe to have fire prevention ability in some special fields, consequently, the utility model relates to a fire prevention hot dip galvanized steel pipe.

SUMMERY OF THE UTILITY MODEL

To the technical problem who mentions in the above-mentioned background art, consequently, the utility model provides a fire prevention hot dip galvanized pipe.

The utility model provides a fire prevention hot dip galvanized pipe, includes the zinc-plated body, encircles the zinc-plated body has set gradually first flame retardant coating, heat preservation, second flame retardant coating and casing from inside to outside, first flame retardant coating is silica aerogel material, the heat preservation is the polyurethane foam, the flame retardant coating is the silica sand material, the casing includes casing and lower casing, the both sides of going up the casing and the mutual one end that is close to of lower casing outwards extend respectively and form the extension board, and be formed with corresponding first screw hole on the extension board of last casing and lower casing, go up casing and lower casing and pass through bolt fixed connection.

Preferably, the heat insulation layer is a honeycomb foam.

Preferably, a rubber pad is arranged between the upper shell and the lower shell.

Preferably, the shell is provided with a plurality of second threaded holes for connecting other pipe bodies.

Preferably, the particle diameters of the silica sand material are 50 meshes to 100 meshes, 100 meshes to 200 meshes and 200 meshes to 400 meshes, and the ratio of the silica sand of the three particles is 3:2: 1.

The utility model provides a fireproof hot-galvanized pipe, which has the advantages that a first fireproof layer and a second fireproof layer are arranged outside the galvanized pipe, so that the device has good fireproof and insulating properties; the heat-insulating layer is arranged, the low-temperature resistance of the galvanized pipe is improved, and the hollow cellular polyurethane foam body has a good heat-insulating effect.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of the device of the present invention;

in the figure, 1, a galvanized pipe body; 2. a first fire resistant layer; 3. a heat-insulating layer; 4. a second fire-resistant layer; 51. an upper housing; 52. a lower housing; 6. a support plate; 7. a bolt; 9. a first threaded hole; 10. a rubber pad; 11. and a second threaded hole.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the schemes and the effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Further, the description of the upper, lower, left, right, etc. used in the present invention is only with respect to the positional relationship of the respective components of the present invention with respect to each other in the drawings.

The following describes preferred embodiments of the present invention in detail with reference to the accompanying drawings.

As shown in fig. 1, the fireproof hot-dip galvanized pipe comprises a galvanized pipe body 1, and a first fireproof layer 2, an insulating layer 3, a second fireproof layer 4 and a shell are sequentially arranged around the galvanized pipe body 1 from inside to outside. The first fireproof layer 2 is made of silicon dioxide aerogel material, the silicon dioxide aerogel is a light nano porous amorphous solid material with excellent heat-proof and heat-insulating properties, the porosity of the material is 80-99%, the typical size of the holes is 1-100nmm, and the specific surface area is 200-1000 m-²The advantages of the material are that the material can be used as a good fire-resistant and insulating material. The heat preservation layer 3 is a polyurethane foaming body, the heat preservation layer 3 improves the low temperature resistance of the galvanized pipe body 1, and the hollow cellular polyurethane foaming body has a good heat preservation effect. The second fireproof layer 4 is made of silica sand material and has good heat resistance and fireproof performance, the particle diameter of the silica sand material is 50-100 meshes, 100-200 meshes and 200-400 meshes, the ratio of the silica sand of the three particles is 3:2:1,the packing density between silica sands can be increased, thereby further improving the fire resistance and heat insulation performance. The casing is made of polyethylene material with certain rigidity, and the hot galvanizing pipe body 1 is guaranteed not to be crushed. The shell comprises an upper shell 51 and a lower shell 52, two sides of one end, close to each other, of the upper shell 51 and the lower shell 52 extend outwards to form support plates 6 respectively, corresponding first threaded holes 9 are formed in the support plates 6 of the upper shell 51 and the lower shell 52, and the upper shell 51 and the lower shell 52 are fixedly connected through bolts 7.

The utility model discloses in the device, go up casing 51 with be equipped with rubber pad 10 down between the casing 52, can guarantee the leakproofness of whole device through rubber pad 10, be equipped with a plurality of second screw holes 11 that are used for connecting other bodys on the casing to convenient the dismantlement.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a fire prevention hot dip galvanized pipe, its characterized in that, includes the zinc-plating body, encircles the zinc-plating body has set gradually first flame retardant coating, heat preservation, second flame retardant coating and casing from inside to outside, first flame retardant coating is silica aerogel material, the heat preservation is the polyurethane foaming body, the flame retardant coating is the silica sand material, the casing includes casing and lower casing, go up the both sides of the one end that casing and lower casing are close to each other and outwards extend respectively and form the extension board, and be formed with corresponding first screw hole on the extension board of last casing and lower casing, go up casing and lower casing and pass through bolt fixed connection.

2. The fire-resistant galvanized pipe according to claim 1, wherein the insulating layer is a honeycomb-shaped foam.

3. The fire-resistant hot-galvanized pipe according to claim 1, wherein a rubber gasket is disposed between the upper casing and the lower casing.

4. The fire-resistant galvanized pipe according to claim 1, wherein the shell is provided with a plurality of second threaded holes for connecting other pipe bodies.