CN213521164U

CN213521164U - Pipeline plugging structure

Info

Publication number: CN213521164U
Application number: CN202021976219.2U
Authority: CN
Inventors: 袁振; 王少华; 张海凤; 王宇川; 李超; 王雨辰; 赵凌霄
Original assignee: Cetc Baoli Beijing Technology Co ltd; State Grid E Commerce Co Ltd
Current assignee: Cetc Baoli Beijing Technology Co ltd; State Grid E Commerce Co Ltd
Priority date: 2020-09-10
Filing date: 2020-09-10
Publication date: 2021-06-22
Anticipated expiration: 2030-09-10

Abstract

The utility model relates to a pipeline block structure, include: a cable running through the conduit; and a high polymer resin sealing section and a watertight belt section are arranged outside the cable. Use the technical scheme of the utility model, the cable conductor passes from the pipeline, and polymer resin seal section and watertight tape section parcel cable conductor, watertight tape section meet the water and can form gelatinous material, and the sealed section of cooperation polymer resin uses to prevent that water from permeating the pipeline outside from the pipeline is inside.

Description

Pipeline plugging structure

Technical Field

The utility model relates to the technical field of engineering, especially, relate to a pipeline block structure.

Background

In recent years, the harm of the water permeation of the transformer substation and the dew condensation of the switch cabinet gradually appears. The transformer substation equipment is flooded or is in a humid environment for a long time and is easy to generate ground fault due to the fact that water enters and is affected with damp. Except for removing the house structure factors, the problems of water permeability and condensation of the transformer substation are mainly caused by holes and gaps left after the cable penetrates through the wall.

The existing solution is to install an inorganic fireproof plate on one side of the wall, and then to fill the space between the inorganic fireproof plate and the wall with rock wool, yellow sand, or quick-drying mortar. However, the method cannot completely block the pores between the cables, and water seepage and water leakage can occur along with the increase of the service life.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at is not enough to above-mentioned prior art, provides a pipeline block structure to cable hole among the solution prior art is difficult to reach the problem of airtight effect.

In order to solve the above problem, the utility model provides a pipeline block structure, include:

a cable running through the conduit;

and a high polymer resin sealing section and a watertight belt section are arranged outside the cable.

On this basis, the polymer resin sealing section and the watertight band section are arranged outside the cable at intervals.

On the basis, the watertight tape section is arranged at one end, close to the outside of the pipeline, of the cable line relative to the high polymer resin sealing section.

On the basis, the watertight band is tightly rolled into a spiral long cylinder with the end part having the same outer diameter as the inner diameter of the pipeline along the outer side of the cable so as to form a watertight band section.

On the basis, the high polymer resin sealing section comprises sponge and a supporting net;

the sponge is strip-shaped, is connected to two ends of the supporting net and has the same length as the end part of the supporting net;

the support net with the sponge at two ends is tightly rolled into a spiral long cylinder with the outer diameter of the end part being the same as the inner diameter of the pipeline along the outer side of the cable, and liquid polymer foaming resin is injected into the spiral long cylinder through a glue gun to foam at the position of the support net to form the polymer resin sealing section.

On this basis, the pipeline sets up in the wallboard perpendicularly, the wallboard comprises inorganic PLASTIC LAMINATED or brick and concrete.

On this basis, the material of the water-tight belt is polyurethane gel foam, and the polyurethane gel foam comprises the following raw materials in parts by weight: 100 parts of polyether polyol, 50-110 parts of isocyanate, 1-3 parts of catalyst, 3-10 parts of chain extender, 0.5-1 part of water, 1-3 parts of physical foaming agent and 5-10 parts of water-absorbent resin, wherein the chain extender is polyvinylamine.

On the basis, the using amount of the isocyanate is 60-90 parts, and the using amount of the chain extender is 5-10 parts.

On this basis, the degree of amination of the polyvinylamine is from 35 to 60%.

Drawings

Fig. 1 is a structural diagram of a pipeline plugging structure provided by the present invention.

Wherein the figures include the following reference numerals:

1. the cable comprises a pipeline, 2 cables, 3 watertight band sections and 4 high polymer resin sealing sections.

Detailed Description

In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

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

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Fig. 1 is a structural diagram of a pipeline plugging structure provided by the present invention. Referring to fig. 1, the pipe-blocking structure includes: a cable 2 passing through the pipe 1; and a high polymer resin sealing section 4 and a watertight belt section 3 are arranged outside the cable 2. The high polymer resin sealing section 4 and the watertight band section 3 are arranged outside the cable 2 at intervals. The watertight band section 3 is arranged at one end of the cable 2 close to the outside of the pipeline 1 relative to the high polymer resin sealing section 4.

The watertight band is tightly rolled into a spiral long cylinder with the end part outer diameter being the same as the inner diameter of the pipeline along the outer side of the cable so as to form a watertight band section 3.

The water-tight belt can rapidly absorb water and expand to form a gel state after meeting water, and micro gaps or pores in the pipeline 1 or the reserved hole are plugged after expansion, so that the open water is effectively prevented from penetrating.

The high polymer resin sealing section 4 comprises sponge and a supporting net; the sponge is strip-shaped, is connected to two ends of the supporting net and has the same length as the end part of the supporting net; the support net with the sponge at two ends is tightly rolled into a spiral long cylinder with the outer diameter of the end part being the same as the inner diameter of the pipeline along the outer side of the cable, and liquid polymer foaming resin is injected into the spiral long cylinder through a glue gun, and the position of the support net of the spiral long cylinder is foamed to form the polymer resin sealing section 4.

When in installation, the support net with sponge at two ends is tightly rolled into a spiral long cylinder with the same end part outer diameter and inner diameter of the pipeline to be sealed along the outer side of the cable conductor and is completely plugged into the end part of the pipeline to be sealed, the cable conductor is formed by arranging one or more cables in parallel, the sponge is arranged at two ends of the long cylinder and the sponge of two adjacent circles is tightly attached, the sponge at the two ends forms a plugging structure to prevent the liquid high molecular foaming resin from flowing out, the liquid high molecular foaming resin is injected into the position of the support net of the spiral long cylinder through a glue gun to foam to form a high molecular resin sealing section 4, the length of the high-molecular resin sealing section is accurately controlled by controlling the distance of the supporting net between the sponges at the two ends, the sealing effect is ensured, and when the pipeline to be sealed is too long, the excessive liquid high molecular foaming resin is prevented from flowing into the pipeline to be sealed, so that waste or incomplete filling is avoided. And because the both ends sponge forms the shutoff and makes and form an independent space between the both ends sponge, can avoid treating the interference of ponding in the sealed pipeline, make the utility model discloses a pipeline cable seal structure can carry out normal use under the condition that has ponding.

The pipeline 1 is vertically arranged in a wallboard, and the wallboard is formed by inorganic fireproof plates or brick-concrete.

Generally, cable conductor 2 outside still includes the cable pipe box, and on the cable conductor 2 in pipeline 1 was located to the cable pipe box cover, through setting up the cable pipe box, can and avoid polymer resin seal section 4 or watertight tape section 3 and cable conductor 2's direct contact and form a whole, trouble when reducing the maintenance and changing cable conductor 2.

On the basis of the above embodiment, the material of the water-tight belt is polyurethane gel foam, and the polyurethane gel foam comprises the following raw materials in parts by weight: 100 parts of polyether polyol, 50-110 parts of isocyanate, 1-3 parts of catalyst, 3-10 parts of chain extender, 0.5-1 part of water, 1-3 parts of physical foaming agent and 5-10 parts of water-absorbent resin, wherein the chain extender is polyvinylamine. The using amount of the isocyanate is 60-90 parts, and the using amount of the chain extender is 5-10 parts. The amination degree of the polyvinylamine is 35 to 60%.

The polyvinylamine is a water-soluble chain high polymer material, the side chain contains a large amount of high-reactivity amine groups, and the amine groups can react with isocyanic acid radicals. By using the polyvinylamine as a chain extender, the molecular chain of the polyurethane is diffused and prolonged, and the linear polyvinylamine is introduced into the polyurethane with a cross-linked network structure to finally form a cross-linked network which is penetrated with each other; the three-dimensional cross-linked network polymer can form gel after absorbing water, endows polyurethane gel foam with good water absorption performance, and can be repeatedly used for water absorption and dehydration; compared with the conventional diamine micromolecule chain extender, the polyurethane obtained by chain extension of macromolecular polyvinylamine has good water absorption and expansion performance.

The isocyanate has a functionality of > 2 and an NCO content of 5-20% and comprises at least one of polyisocyanate and polyisocyanate.

Preferably, the isocyanate is used in an amount of 60-90 parts, and the chain extender is used in an amount of 5-10 parts.

The polyether polyol has a functionality of 2-3 and a hydroxyl value of 30-40mgKOH/g (number average molecular weight of 2000-6500).

The catalyst is not particularly limited, and an organic tin catalyst commonly used in the art may include at least one of dibutyltin dilaurate and stannous octoate.

The physical foaming agent is a low-boiling point foaming agent and comprises at least one of hexane, isohexane, propane and dichloromethane.

The water-absorbent resin comprises polyacrylamide derivatives and polyacrylate derivatives, and is specifically selected from at least one of polyacrylamide, sodium polyacrylate and poly (cyclopropyl acrylamide).

Preferably, the polyurethane gel foam further comprises 1-3 parts of a foam stabilizer, wherein the foam stabilizer is a silicone foam stabilizer, and is specifically selected from one or more of AK-8818, B8525, B8545, DC5598 and DC 193.

Although the invention has been described in detail in the foregoing by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that certain modifications and improvements may be made thereto based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A pipeline plugging structure, comprising:

a cable running through the conduit;

a high polymer resin sealing section and a watertight belt section are arranged outside the cable; the high polymer resin sealing section comprises sponge and a supporting net;

the both ends are connected with the sponge the support network is followed the outside of cable conductor is closely rolled into the heliciform long section of thick bamboo that the tip external diameter is the same with the internal diameter size of pipeline, and liquid polymer foaming resin pours into through gluing the rifle into the position of the heliciform long section of thick bamboo the support network, the foaming forms the polymer resin seal section.

2. The pipe plugging structure according to claim 1, wherein the polymer resin sealing section and the watertight tape section are provided at intervals outside the cable line.

3. The pipe-plugging structure according to claim 2, wherein the watertight tape section is provided at an end of the cable line near an outside of the pipe with respect to the polymer resin sealing section.

4. The pipeline plugging structure of claim 1, wherein the watertight tape is tightly rolled along the outside of said electric cables into a spiral long tube having an end portion with an outer diameter equal to the inner diameter of the pipeline to form a watertight tape section.

5. The pipe-plugging structure according to claim 1, wherein said pipes are vertically disposed within wall panels, said wall panels being composed of inorganic fire-retardant panels or brick-concrete.

6. The pipe blocking structure of any one of claims 1 to 5, wherein the water-tight tape is made of polyurethane gel foam.