CN216112590U

CN216112590U - Long-acting heat-resistant halogen-free flame-retardant corrugated pipe

Info

Publication number: CN216112590U
Application number: CN202122232605.1U
Authority: CN
Inventors: 王韬
Original assignee: Hunt Engineering Plastic Zhejiang Co ltd
Current assignee: Hunt Engineering Plastic Zhejiang Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2022-03-22
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a long-acting heat-resistant halogen-free flame-retardant corrugated pipe which comprises a corrugated pipe body, wherein the corrugated pipe body consists of an outer base layer, a flame-retardant layer, a reinforcing layer, an inner base layer and two spray layers, the flame-retardant layer is arranged on one side of the outer base layer, the reinforcing layer is arranged on one side of the flame-retardant layer, the inner base layer is arranged on one side of the reinforcing layer, one spray layer is arranged on the other side of the outer base layer, and the other spray layer is arranged on one side of the inner base layer. According to the utility model, the flame retardant layer and the two spraying agent layers are arranged, so that the flame retardance and the heat resistance of the corrugated pipe are enhanced through the flame retardant layer and the two spraying agent layers, the phenomenon that the corrugated pipe is damaged due to high-temperature combustion is effectively avoided, and the service life of the corrugated pipe is prolonged.

Description

Long-acting heat-resistant halogen-free flame-retardant corrugated pipe

Technical Field

The utility model relates to the technical field of corrugated pipes, in particular to a long-acting heat-resistant halogen-free flame-retardant corrugated pipe.

Background

The corrugated pipe is a tubular elastic sensitive element which is formed by connecting foldable corrugated sheets along the folding and stretching direction. The corrugated pipe has wide application in instruments and meters, and is mainly used as a measuring element of a pressure measuring instrument to convert pressure into displacement or force. The corrugated pipe mainly comprises a metal corrugated pipe, a corrugated expansion joint, a corrugated heat exchange pipe, a diaphragm capsule, a metal hose and the like. The metal corrugated pipe is mainly applied to the effects of compensating the thermal deformation of a pipeline, damping, absorbing the settlement deformation of the pipeline and the like, and is widely applied to the industries of petrifaction, instruments, aerospace, chemical industry, electric power, cement, metallurgy and the like.

The application range of the corrugated pipe is wide, the shadow of the corrugated pipe exists in various different working environments, and when the corrugated pipe is used in a dry high-temperature environment, the conventional corrugated pipe has low flame retardance, so that the pipe wall of the corrugated pipe is burnt and damaged, and the service life of the corrugated pipe is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a long-acting heat-resistant halogen-free flame-retardant corrugated pipe to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a long-term heat-resisting no halogen flame retardant corrugated pipe, includes the bellows body, the bellows body comprises outer basic unit, fire-retardant layer, enhancement layer, interior basic unit and two spray layers, fire-retardant layer sets up in one side of outer basic unit, the enhancement layer sets up in one side of fire-retardant layer, interior basic unit sets up in one side of enhancement layer, one of them the spray layer sets up in the opposite side of outer basic unit, and wherein another the spray layer sets up in one side of interior basic unit.

Preferably, the flame-retardant layer is flame-retardant ABS resin, and the thickness ratio of the flame-retardant layer to the reinforcing layer is 1: 1.

Preferably, the spray agent layers are zinc borate halogen-free flame retardants, and the thickness ratio of the two spray agent layers is 1: 1.

Preferably, the two ends of the corrugated pipe body are symmetrically and fixedly connected with connecting pipes, and the inner cavities of the two connecting pipes are provided with leakage-proof mechanisms.

Preferably, the leak protection mechanism includes solid fixed ring, gu the outer wall of fixed ring and the inner wall fixed connection of connecting pipe, gu the inner wall fixedly connected with inner tube of fixed ring, gu the ring channel has been seted up to one side of fixed ring, the inner chamber fixedly connected with sealing washer of ring channel.

Preferably, the other side of the fixing ring is fixedly connected with a drainage ring, and the outer wall of the drainage ring is fixedly connected with the inner wall of the connecting pipe.

The utility model has the technical effects and advantages that:

(1) according to the utility model, the flame retardant layer and the two spray layers are arranged, so that the flame retardance and the heat resistance of the corrugated pipe are enhanced through the flame retardant layer and the two spray layers, the phenomenon that the corrugated pipe is damaged due to high-temperature combustion is effectively avoided, and the service life of the corrugated pipe is prolonged;

(2) the utility model utilizes the arrangement of the fixing ring, the inner tube and the sealing ring, and passes through the fixing ring and the inner tube. The sealing ring enables the sealing performance of the joint of the corrugated pipe and other parts to be better, and the sealing performance of the installation of the corrugated pipe is improved.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

FIG. 2 is a front sectional structural view of the present invention.

FIG. 3 is a schematic view of a layered structure of the bellows of the present invention.

FIG. 4 is an enlarged view of a portion A of FIG. 2 according to the present invention.

In the figure: 1. a bellows body; 101. an outer base layer; 102. a flame retardant layer; 103. a reinforcing layer; 104. an inner base layer; 105. a spray layer; 2. a connecting pipe; 3. a fixing ring; 4. an inner tube; 5. a seal ring; 6. and a drainage ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The utility model provides a long-acting heat-resistant halogen-free flame-retardant corrugated pipe as shown in figures 1-4, which comprises a corrugated pipe body 1, wherein the corrugated pipe body 1 consists of an outer base layer 101, a flame-retardant layer 102, a reinforcing layer 103, an inner base layer 104 and two spray layers 105, the flame-retardant layer 102 is arranged on one side of the outer base layer 101, the flame-retardant layer 102 is made of flame-retardant ABS resin, the flame-retardant layer 102 is used for improving the heat resistance and the flame retardance of the corrugated pipe, the reinforcing layer 103 is arranged on one side of the flame-retardant layer 102, the reinforcing layer 103 is used for enhancing the strength of the corrugated pipe and avoiding the corrugated pipe from being damaged due to overlarge stress, the reinforcing layer 103 is formed by spirally winding a plurality of reinforcing ribs, and the thickness ratio of the flame-retardant layer 102 to the reinforcing layer 103 is 1: 1, interior base layer 104 sets up in the one side of enhancement layer 103, and one of them spray layer 105 sets up in the opposite side of outer base layer 101, and wherein another spray layer 105 sets up in one side of interior base layer 104, and spray layer 105 is used for strengthening the heat resistance and the fire resistance of bellows, and spray layer 105 is the halogen-free fire retardant of zinc borate, and the thickness ratio of two spray layers 105 is 1: 1;

bellows body 1's both ends symmetry fixedly connected with connecting pipe 2, connecting pipe 2 is used for the connection work of bellows, the inner chamber of two connecting pipes 2 all is equipped with leak protection mechanism, leak protection mechanism is used for improving the leakproofness of bellows joint, leak protection mechanism is including solid fixed ring 3, gu fixed ring 3's outer wall and connecting pipe 2's inner wall fixed connection, gu fixed ring 3's inner wall fixedly connected with inner tube 4, inner tube 4 need insert the inside of treating the installation end when connecting, gu fixed ring 3's one side has seted up the ring channel, the inner chamber fixedly connected with sealing washer 5 of ring channel, gu fixed ring 3's opposite side fixedly connected with drainage ring 6, drainage ring 6 plays the effect of drainage, the outer wall of drainage ring 6 and the inner wall fixed connection of connecting pipe 2.

The working principle of the utility model is as follows:

when needs install the bellows under dry high temperature environment, at first cup joint connecting pipe 2 at the end of treating adapting unit, need to guarantee that inner tube 4 is located the inside of treating the adapting unit end this moment, rotate the bellows after that, make two connecting pipes 2 gradually with the end threaded connection who treats the connection, when one side of the end of treating the connection supports and extrudees sealing washer 5, just accomplished the installation work, under the environment of dry high temperature, the fire-retardant layer 102 of the inside of bellows and the fire resistance of outside spray layer 105 can effectual improvement bellows, the effectual phenomenon of bellows damage because of high temperature combustion that has surfaced.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "disposed," "mounted," "connected," and "secured" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integral to; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The standard parts used by the utility model can be purchased from the market, and the special-shaped parts can be customized according to the description and the description of the attached drawings.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that 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

1. The utility model provides a long-term heat-resisting no halogen flame retardant corrugated pipe, includes bellows body (1), its characterized in that, bellows body (1) comprises outer basic unit (101), fire-retardant layer (102), enhancement layer (103), interior basic unit (104) and two spray layers (105), fire-retardant layer (102) set up in one side of outer basic unit (101), enhancement layer (103) set up in one side of fire-retardant layer (102), interior basic unit (104) set up in one side of enhancement layer (103), one of them spray layer (105) set up in the opposite side of outer basic unit (101), wherein another spray layer (105) set up in one side of interior basic unit (104).

2. The long-acting heat-resistant halogen-free flame-retardant corrugated pipe according to claim 1, wherein the flame-retardant layer (102) is a flame-retardant ABS resin, and the thickness ratio of the flame-retardant layer (102) to the reinforcing layer (103) is 1: 1.

3. the long-acting heat-resistant halogen-free flame-retardant corrugated pipe as claimed in claim 1, wherein the spray layers (105) are zinc borate halogen-free flame retardants, and the thickness ratio of the two spray layers (105) is 1: 1.

4. the long-acting heat-resistant halogen-free flame-retardant corrugated pipe according to claim 1, wherein the two ends of the corrugated pipe body (1) are symmetrically and fixedly connected with connecting pipes (2), and the inner cavities of the two connecting pipes (2) are provided with leakage-proof mechanisms.

5. The long-acting heat-resistant halogen-free flame-retardant corrugated pipe according to claim 4, wherein the leakage-proof mechanism comprises a fixing ring (3), the outer wall of the fixing ring (3) is fixedly connected with the inner wall of the connecting pipe (2), the inner wall of the fixing ring (3) is fixedly connected with an inner pipe (4), one side of the fixing ring (3) is provided with an annular groove, and the inner cavity of the annular groove is fixedly connected with a sealing ring (5).

6. The long-acting heat-resistant halogen-free flame-retardant corrugated pipe according to claim 5, wherein the other side of the fixing ring (3) is fixedly connected with a drainage ring (6), and the outer wall of the drainage ring (6) is fixedly connected with the inner wall of the connecting pipe (2).