CN216158504U

CN216158504U - High-temperature-resistant flame-retardant PVC pipe

Info

Publication number: CN216158504U
Application number: CN202122231412.4U
Authority: CN
Inventors: 陈祥武
Original assignee: Shandong Yunyang Pipe Industry Co ltd
Current assignee: Shandong Yunyang Pipe Industry Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-04-01
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a high-temperature-resistant flame-retardant PVC pipe, which comprises a pipe body and a PVC pipe body, wherein the PVC pipe body comprises a PVC base layer arranged in the PVC pipe body; connecting portion, include the fixed sleeving that pipe body one end set up and the locating hole that another tip of pipe body set up, through adopting thermal barrier coating, it can effectively slow down the heat internal and external conduction, the heat preservation adopts the asbestos material simultaneously, it has better heat preservation effect, especially can avoid intraductal fluid to freeze and split in winter, it still has better fire resistance and thermal insulation simultaneously, fire-retardant layer adopts inorganic magnesium oxychloride composite coating, it has splendid fire prevention fire behaviour, can effectively avoid the fundamental damage that external flame led to the fact the body, because partial body exposes outdoors throughout the year, consequently sun-proof layer can reflect sunshine, and effectively reduced the ageing rate of body.

Description

High-temperature-resistant flame-retardant PVC pipe

Technical Field

The utility model relates to the technical field of PVC pipes, in particular to a high-temperature-resistant flame-retardant PVC pipe.

Background

The PVC pipe is a kind of material whose main component is PVC and other components are added to raise its heat resistance, toughness and ductility, and the PVC pipe hard PVC pipe is made up by using PVC resin, stabilizing agent and lubricating agent through the process of hot-pressing and extrusion forming, and is a kind of synthetic material which is popular in the world and is also extensively used.

However, the performance of the existing PVC pipe in the aspects of high temperature resistance and flame retardance is poor, when the PVC pipe is contacted with high-heat solid and liquid for a long time or even corroded by external flame, the PVC pipe cannot be continuously used, the damage of the whole pipeline can be seriously caused, the safety is poor, and the practicability of the PVC pipe is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-temperature-resistant flame-retardant PVC pipe, which aims to solve the problems that the existing PVC pipe in the background art has poor performance in the aspects of high temperature resistance and flame retardance, when the PVC pipe is contacted with high-heat solid and liquid for a long time and even eroded by external flame, the PVC pipe cannot be used continuously, the whole pipeline can be seriously damaged, the safety is poor, and the practicability of the PVC pipe is reduced.

In order to achieve the purpose, the utility model provides the following technical scheme: a high temperature resistant flame retardant PVC pipe, comprising:

the pipe body comprises a pvc base layer arranged in the pipe body, and a heat-resistant outer protective layer is coated on the outer side wall of the pvc base layer;

the connecting part comprises a fixed sleeve arranged at one end part of the pipe body and a positioning hole arranged at the other end part of the pipe body.

Preferably, the inner wall of the pvc base layer is further coated with a waterproof layer with equal thickness, and the inner wall of the waterproof layer is coated with an anticorrosive layer.

Preferably, the heat-resistant outer protective layer comprises a heat insulation coating, a heat preservation layer, a flame retardant layer and a sun-proof layer which are sequentially coated from inside to outside, and the inner wall of the heat insulation coating is attached to the outer wall of the pvc base layer.

Preferably, a threaded rod and a threaded hole corresponding to the threaded rod penetrate through the upper end and the lower end of the fixing sleeve, and the hole position of the threaded hole is right opposite to the hole position of the positioning hole.

Preferably, the threaded rod penetrates through the threaded hole, the lower end of the threaded rod is embedded in the positioning hole, and the inner diameter of the fixing sleeve is larger than the outer diameter of the pipe body.

Preferably, the inner side wall of the fixed sleeve is coated with waterproof adhesive, and the waterproof adhesive is uniformly coated along the inner side wall of the fixed sleeve in a circle.

Compared with the prior art, the utility model has the beneficial effects that:

through the mutual matching of the PVC base layer, the heat insulation coating, the heat insulation layer, the flame retardant layer and the sun protection layer, the damage of high temperature to the pipe body can be effectively reduced, and the use performance of the pipe body is enhanced.

And (II) through the matching between the fixed sleeve, the threaded rod, the positioning hole and the waterproof adhesive, the two pipe bodies can be ensured not to be separated from and fall off under the long-term use state.

Drawings

FIG. 1 is a schematic cross-sectional view of a tube body according to the present invention;

FIG. 2 is a schematic view of a pipe joint structure according to the present invention;

fig. 3 is a schematic external perspective view of the tube of the present invention.

In the figure: 100. a tube body; 110. a pvc base layer; 120. a waterproof layer; 130. an anticorrosive layer; 140. a heat-resistant outer jacket; 1401. a thermal barrier coating; 1402. a heat-insulating layer; 1403. a flame retardant layer; 1404. a sunscreen layer; 200. a connecting portion; 210. fixing the sleeve; 220. a threaded rod; 230. positioning holes; 240. a threaded hole; 250. waterproof adhesive.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.

Next, the present invention will be described in detail with reference to the drawings, wherein for convenience of illustration, the cross-sectional view of the device structure is not enlarged partially according to the general scale, and the drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The utility model provides a high-temperature-resistant flame-retardant PVC pipe which can enhance the fireproof and high-temperature-resistant performances of the conventional PVC pipe, effectively reduce the damage to the pipe caused by high-temperature conduction, and simultaneously ensure that two pipe bodies cannot fall off when being contacted for a long time.

Fig. 1 to 3 are schematic views illustrating the overall structure of a high temperature resistant and flame retardant PVC pipe according to the present invention, and referring to fig. 1 to 3, a main body of the high temperature resistant and flame retardant PVC pipe according to the present embodiment includes a pipe body 100 and a connection portion 200.

The pipe body 100 comprises a pvc base layer 110 arranged in the pipe body, a heat-resistant outer protective layer 140 is coated on the outer side wall of the pvc base layer 110, a waterproof layer 120 with equal thickness is further coated on the inner wall of the pvc base layer 110, an anticorrosive layer 130 is coated on the inner wall of the waterproof layer 120, the waterproof layer 120 is a perfluorosilane coating which has excellent waterproof and water-blocking performances and good extensibility and is not easy to break, the anticorrosive layer 130 is an organic cuprammonium material and has excellent acid and alkali resistance, the waterproof layer 120 and the inner wall of the pipe body are prevented from being corroded and damaged, the overall service performance of the pipe body is improved, the heat-resistant outer protective layer 140 comprises a heat-insulating coating 1401, a heat-insulating layer 1402, a flame-retardant layer 1403 and a sun-proof layer 1404 which are sequentially coated from inside to outside, the inner wall of the heat-insulating coating 1401 and the outer wall of the pvc base layer 110 are mutually attached, the heat-insulating coating 1401 is a silicate coating, and can effectively slow down the heat conduction inside and outside, the heat preservation layer 1402 is made of asbestos, has a good heat preservation effect, can prevent fluid in a pipe from freezing and cracking particularly in winter, and has good fire resistance and heat insulation performance, the flame retardant layer 1403 is made of an inorganic magnesium oxychloride composite coating, has excellent fireproof and flame retardant performances, and can effectively prevent external flames from fundamentally damaging the pipe body, and part of the pipe body is exposed outdoors all the year round, so the sun protection layer 1404 can reflect sunlight and effectively reduce the aging speed of the pipe body.

The connecting part 200 comprises a fixing sleeve 210 arranged at one end part of the pipe body 100 and a positioning hole 230 arranged at the other end part of the pipe body 100, wherein a threaded rod 220 and a threaded hole 240 corresponding to the threaded rod 220 penetrate through the upper end and the lower end of the fixing sleeve 210, the hole of the threaded hole 240 is opposite to the hole of the positioning hole 230, the threaded rod 220 penetrates through the threaded hole 240, the lower end of the threaded rod is embedded in the positioning hole 230, the inner diameter of the fixing sleeve 210 is larger than the outer diameter of the pipe body 100, the two pipe bodies, namely the pipe body 100, are required to be mutually jointed when being installed, in order to prevent the two pipe bodies from being separated in a long-term use state, the fixing sleeve 210 can be embedded into the positioning hole 230 under the matching of the threaded rod 220 and lock and fix the jointed parts of the two pipe bodies, the inner side wall of the fixing sleeve 210 is coated with waterproof viscose 250, the waterproof viscose 250 is evenly coated along the inner side wall of the fixing sleeve 210, and the fixing sleeve 210 can fill and seal the jointed parts of the two pipe bodies under the matching of the waterproof viscose 250, and plays the role of isolating the inside and the outside of the pipe body.

In summary, in the high temperature resistant and flame retardant PVC pipe of the present embodiment, when the pipe body is fixed by high temperature from outside and contacts with liquid and flame, the heat conduction inside and outside can be effectively slowed down by the arrangement of the thermal insulation coating 1401, the insulating layer 1402 has a better insulating effect, particularly can avoid freezing and frost cracking of fluid in the pipe in winter, meanwhile, the flame-retardant coating 1403 has good fire resistance and heat insulation, has excellent fireproof and flame-retardant performance, can effectively avoid the fundamental damage of external flame to the pipe body, since part of the tube is exposed outdoors all the year round, the sun blocking layer 1404 can reflect sunlight, and effectively reduces the aging speed of the tube body, and in addition, in order to ensure that the tube body can not be separated in a long-term use state, the fixing sleeve 210 can be inserted into the positioning hole 230 under the cooperation of the threaded rod 220 and can lock and fix the joint portion of the two tubes.

While the utility model has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. In particular, the various features of the disclosed embodiments of the utility model may be used in any combination, provided that no structural conflict exists, and the combinations are not exhaustively described in this specification merely for the sake of brevity and resource conservation. Therefore, it is intended that the utility model not be limited to the particular embodiments disclosed, but that the utility model will include all embodiments falling within the scope of the appended claims.

Claims

1. A high temperature resistant flame retardant PVC pipe, comprising:

the pipe comprises a pipe body (100) and a heat-resistant outer protective layer (140), wherein the pipe body comprises a pvc base layer (110) arranged in the pipe body, and the outer side wall of the pvc base layer (110) is coated with the heat-resistant outer protective layer (140);

the connecting part (200) comprises a fixing sleeve (210) arranged at one end part of the pipe body (100) and a positioning hole (230) arranged at the other end part of the pipe body (100).

2. The high temperature resistant flame retardant PVC pipe of claim 1, wherein: the inner wall of the pvc base layer (110) is coated with a waterproof layer (120) with equal thickness, and the inner wall of the waterproof layer (120) is coated with an anticorrosive layer (130).

3. The high temperature resistant flame retardant PVC pipe of claim 2, wherein: the heat-resistant outer protection layer (140) comprises a heat insulation coating (1401), an insulating layer (1402), a flame retardant layer (1403) and a sun protection layer (1404) which are sequentially coated from inside to outside, and the inner wall of the heat insulation coating (1401) and the outer wall of the pvc base layer (110) are mutually attached.

4. The high temperature resistant flame retardant PVC pipe of claim 3, characterized in that: the upper end and the lower end of the fixed sleeve (210) are penetrated by a threaded rod (220) and a threaded hole (240) corresponding to the threaded rod (220), and the hole position of the threaded hole (240) is right opposite to the hole position of the positioning hole (230).

5. The high temperature resistant flame retardant PVC pipe of claim 4, characterized in that: the threaded rod (220) penetrates through the threaded hole (240) and the lower end of the threaded rod is embedded in the positioning hole (230), and the inner diameter of the fixing sleeve (210) is larger than the outer diameter of the pipe body (100).

6. The high temperature resistant flame retardant PVC pipe of claim 5, characterized in that: the inner side wall of the fixed sleeve (210) is coated with waterproof adhesive (250), and the waterproof adhesive (250) is uniformly coated along the inner side wall of the fixed sleeve (210) in a circle.