CN214941237U - Fireproof cable blocking partition - Google Patents

Abstract

In order to solve potential safety hazard problems such as current fire prevention shutoff gas tightness is not enough, easily ftractureing, the utility model provides a fireproof cable shutoff cuts off, mainly including preventing hot wall, setting at the fire prevention shutoff module who prevents hot wall both sides, fire prevention shutoff module includes the first intumescent fire prevention shutoff material layer, the cotton layer of ceramic fibre, ceramic fibre sheet layer and the fireproof coating layer that distribute in proper order from inside to outside to prevent hot wall and fire prevention shutoff module and be equipped with along the width direction distribution be used for the through-hole that the cable passed, have fine fire resistance, heat-proof quality, separate cigarette nature and fire behavior.

Description

Fireproof cable blocking partition

Technical Field

The utility model relates to a building technical field, in particular to fireproof cable shutoff cuts off.

Background

In recent years, fire disasters caused by construction sites and building materials in China tend to be more frequent, and extra-large fire disasters such as China Olympic center, China Zhonghuan International Square in Nanjing, Beijing Central China and other public places are related to the building materials, so that great loss is caused, and the fire prevention of the building materials is particularly important. The building fire protection system is divided into an active fire protection system and a passive fire protection system, wherein the active fire protection system consists of automatic (manual) control alarm, spraying, fire protection electricity utilization, water supply and other equipment systems; the passive fire protection system is composed of fire-resistant or non-combustible decoration materials, such as fire-resistant doors, fire-resistant suspended ceilings, and fire-resistant plugging materials such as cables, pipelines and the like which penetrate through holes formed in walls and floors and building gaps.

The fireproof plugging material generally refers to a material which is used for a cable bridge, a conduit, various pipelines and the like to penetrate through a hole formed in a wall or a floor slab or gaps and the like caused by some reasons in the process of building construction and has the functions of heat insulation, fire prevention, flame retardance and smoke prevention. The fireproof plugging material is widely applied, and almost all buildings are made of the fireproof plugging material, in particular to buildings and important public buildings in the industries of electric power, petrifaction, transportation, metallurgy, communication and the like.

The fireproof plugging partition adopted by the conventional cable bridge wall-penetrating structure mainly comprises a fireproof bag, inorganic plugging materials and organic plugging materials, for example, the fireproof partition of a cable trench of a transformer substation in the utility model CN200420114588.5 adopts a cable supporting frame and the organic plugging materials for covering gaps of cables, the fireproof bag for filling and plugging the rest space and a fireproof door assembly; the utility model CN201320353346.0 discloses a cable penetration combined fireproof plugging module for nuclear power, which comprises a first inorganic plugging layer, a second inorganic plugging layer, a fire-retardant covering layer and an organic plugging layer, wherein the module has high air tightness and water tightness and stable structure; utility model patent CN201520336654.1 relates to a fire-retardant block structure of cable, including cable, flame retardant coating, back-fire relief package, fire prevention putty and wall body, this utility model can effectively use in the cable department of running through, plays good back-fire relief shutoff effect, has simple structure, and is with low costs, advantages such as construction convenience, market prospect is wide. However, the materials have some defects and disadvantages, the fire retardant bag cannot achieve the smoke-tight effect, the air tightness requirement of the fire retardant bag cannot be met in some special industries, the construction is difficult to control, the fire retardant bag is easy to swell when meeting water, and the wall body can collapse after a long time; the inorganic blocking material is easy to crack and inconvenient to construct; the organic blocking material can corrode a matrix after long-term use, and fire hazard is easily formed.

Disclosure of Invention

In order to solve the problem, the utility model provides a fireproof cable shutoff cuts off, and the technical scheme of adoption is as follows:

the fireproof cable blocking partition is characterized by mainly comprising a fireproof wall and fireproof blocking modules arranged on two sides of the fireproof wall, wherein each fireproof blocking module comprises a first expansion type fireproof blocking material layer, a ceramic fiber cotton layer, a ceramic fiber plate layer and a fireproof coating layer which are sequentially distributed from inside to outside, and through holes for cables to pass through are distributed in the width direction on the fireproof wall and the fireproof blocking modules.

Preferably, the inner wall of the through hole is provided with a second expansion type fireproof plugging material layer.

Preferably, ceramic fiber powder is added in the firewall, the first expansion type fireproof plugging material layer, the second expansion type fireproof plugging material layer and the fireproof coating layer.

Preferably, the fire-resistant limit of the first intumescent fireproof plugging material layer and the second intumescent fireproof plugging material layer is not less than 3 hours, and the expansion multiple in case of fire is 300-600%.

Preferably, flame-retardant intumescent fire-retardant sealant is filled between the first intumescent fire-retardant plugging material layer and the ceramic fiber cotton layer and between the ceramic fiber board layer and the ceramic fiber cotton layer.

Preferably, the breaking elongation of the flame-retardant intumescent fire-retardant sealant is not less than 150%, and the fire-resistant limit of the flame-retardant intumescent fire-retardant sealant is not less than 3 h.

Preferably, the ceramic fiber cotton layer is one of a common ceramic fiber cotton layer, a standard ceramic fiber cotton layer, a high-purity ceramic fiber cotton layer, a high-alumina ceramic fiber cotton layer, a low-zirconium ceramic fiber cotton layer, a zirconium-containing ceramic fiber cotton layer and a polycrystalline ceramic fiber cotton layer.

Preferably, the ceramic fiber board layer is one of a normal type ceramic fiber board layer, a standard type ceramic fiber board layer, a high purity type ceramic fiber board layer, a high alumina type ceramic fiber board layer, a low zirconium type ceramic fiber board layer, a zirconium-containing type ceramic fiber board layer, and a polycrystalline fiber type ceramic fiber board layer.

The beneficial effects of the utility model reside in that:

1. the utility model has the advantages that the fire-proof wall, the expansion type fireproof plugging material layer, the ceramic fiber cotton layer, the ceramic fiber plate layer, the flame-retardant expansion type fireproof sealant and the fireproof coating layer have multiple functions, thereby having good flame retardance, heat insulation, smoke isolation and fireproof performance, and the used material does not contain sulfur, halogen and the like, thereby having good environmental protection;

2. ceramic fiber powder is added into the fireproof wall, the expansion type fireproof plugging material layer and the fireproof coating layer, the high temperature resistance of the fireproof plugging material can be improved by adding the ceramic fiber powder, a framework supporting effect is achieved after combustion, combustion products are not prone to collapse, toxic gas and smoke are effectively blocked, the flame retardant effect of the fireproof plugging material can be further improved by adding the ceramic fiber powder, open fire combustion is not prone to occurring, the heat conductivity coefficient of the fireproof plugging material can be reduced by adding the ceramic fiber powder, and the plugging material with better heat insulation performance is obtained;

3. the through hole through which the cable passes is formed in the fireproof partition, when the cable passes through for the second time, the wall structure is not damaged, only the expansion type fireproof plugging material in the through hole needs to be removed, and the expansion type fireproof plugging material is refilled after the cable passes through, so that the purpose of fireproof plugging can be achieved, the construction is convenient, and the construction process is simple.

Drawings

FIG. 1 is a structural diagram of the present invention

The fireproof coating comprises the following components, by weight, 1-a fireproof wall, 2-a first expansion type fireproof plugging material layer, 3-a ceramic fiber cotton layer, 4-a ceramic fiber board layer, 5-a fireproof coating layer, 6-through holes and 7-a second expansion type fireproof plugging material layer.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The fireproof cable blocking partition as shown in fig. 1 mainly comprises a fireproof wall 1, first expansion type fireproof blocking material layers 2 located on the left side and the right side of the fireproof wall 1, a ceramic fiber cotton layer 3 located on the outer side of the first expansion type fireproof blocking material layers 2, a ceramic fiber board layer 4 located on the outer side of the ceramic fiber cotton layer 3 and a fireproof coating layer 5 located on the outer side of the ceramic fiber board layer 4, in addition, a through hole 6 for a cable to pass through is arranged in a penetrating mode in the overall structure width direction, namely the thickness direction, and a second expansion type fireproof blocking material layer 7 is fixedly connected to the inner wall of the through hole 6.

In the embodiment, ceramic fiber powder is added into a firewall 1, a first expansion type fireproof plugging material layer 2, a ceramic fiber cotton layer 3, a ceramic fiber board layer 4, a flame-retardant expansion type fireproof sealant, a fireproof coating layer 5 and a second expansion type fireproof plugging material layer 7, the firewall 1 is formed by stacking a plurality of fireproof bricks, the first expansion type fireproof plugging material layer 2 is laid on the left side surface and the right side surface of the firewall 1, the purpose is to fill and level gaps between the bricks on the firewall 1, the whole wall surface has no gaps, the expansion multiple of the first expansion type fireproof plugging material layer 2 in case of fire is 500%, the fire resistance limit is not lower than 3h, the ceramic fiber cotton layer 3 is laid on the outer side surface of the first expansion type fireproof plugging material layer 2, the ceramic fiber cotton layer 3 is a mixture of a standard type and a zirconium-containing type, the ceramic fiber board layer 4 is a zirconium-containing type ceramic fiber board, between first intumescent fire prevention plugging material layer 2 and the cotton layer of ceramic fibre 3, all pack fire-retardant intumescent fire prevention sealant between ceramic fiberboard layer 4 and the cotton layer of ceramic fibre 3, the elongation at break of fire-retardant intumescent fire prevention sealant is not less than 150%, fire-resistant limit is not less than 3h, the fire protection coating 5 that sets up in the ceramic fiberboard layer 4 lateral surface meets fire expansion multiple and is 15 times, prevent hot wall 1, first intumescent fire prevention plugging material layer 2, the cotton layer of ceramic fibre 3, through-hole 6 has all been seted up on ceramic fiberboard layer 4 and the fire protection coating 5, still fixedly connected with second intumescent fire prevention plugging material layer 7 on the through-hole 6 inner wall.

The utility model discloses a prevent hot wall 1, first intumescent fire prevention plugging material layer 2, the cotton layer of ceramic fibre 3, ceramic fiber board layer 4, fire-retardant intumescent fire prevention sealant, fire prevention coating layer 5 and the multiple action of second intumescent fire prevention plugging material layer 7, have fine fire retardance, the heat-proof quality, smoke barrier property and fire behavior, do not contain sulphur in the material used, halogen etc., good environmental protection performance has, and prevent hot wall 1, first intumescent fire prevention plugging material layer 2, fire-retardant intumescent fire prevention sealant, ceramic fibre powder has been added in fire prevention coating layer 5 and the second intumescent fire prevention plugging material layer 7, the joining of ceramic fibre powder can improve the high temperature resistance of fire prevention plugging material, play the skeleton support effect after the burning, make the combustion products difficult emergence collapse, effectively blocked poisonous gas and smog; secondly, the flame retardant effect of the fireproof plugging material can be further improved by adding the ceramic fiber powder, and open fire combustion is less likely to occur; thirdly, the heat conductivity coefficient of the fireproof plugging material can be reduced by adding the ceramic fiber powder, the plugging material with better heat insulation performance is obtained, in addition, a through hole 6 through which a cable passes is formed in the whole fireproof partition, when the cable passes for the second time, the wall structure is not damaged, only the second expansion type fireproof plugging material layer 7 in the through hole 6 needs to be removed, and after the cable passes through, the expansion type fireproof plugging material is refilled, so that the fireproof plugging purpose can be achieved, the construction is convenient, and the construction process is simple.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements can be made, and these improvements should also be regarded as the protection scope of the present invention.

Claims (8)

1. The fireproof cable blocking partition is characterized by mainly comprising a fireproof wall and fireproof blocking modules arranged on two sides of the fireproof wall, wherein each fireproof blocking module comprises a first expansion type fireproof blocking material layer, a ceramic fiber cotton layer, a ceramic fiber plate layer and a fireproof coating layer which are sequentially distributed from inside to outside, and through holes for cables to pass through are distributed in the width direction on the fireproof wall and the fireproof blocking modules.

2. The fire-resistant cable blocking partition according to claim 1, wherein the inner wall of the through hole is provided with a second intumescent fire-resistant blocking material layer.

3. The fireproof cable blocking partition of claim 2, wherein ceramic fiber powder is added to the fireproof wall, the first intumescent fireproof blocking material layer, the second intumescent fireproof blocking material layer and the fireproof coating layer.

4. The fireproof cable blocking partition of claim 2, wherein the fire resistance limit of the first intumescent fireproof blocking material layer and the second intumescent fireproof blocking material layer is not less than 3h, and the expansion factor in case of fire is 300-600%.

5. The fireproof cable blocking partition of claim 1, wherein a flame retardant intumescent fire retardant sealant is filled between the first intumescent fire blocking material layer and the ceramic fiber cotton layer and between the ceramic fiber board layer and the ceramic fiber cotton layer.

6. The fireproof cable blocking partition of claim 5, wherein the elongation at break of the flame retardant intumescent fire retardant sealant is not less than 150%, and the fire endurance of the flame retardant intumescent fire retardant sealant is not less than 3 h.

7. The fire-resistant cable blocking partition of claim 1, wherein the ceramic fiber cotton layer is one of a normal type ceramic fiber cotton layer, a standard type ceramic fiber cotton layer, a high purity type ceramic fiber cotton layer, a high alumina type ceramic fiber cotton layer, a low zirconium type ceramic fiber cotton layer, a zirconium-containing type ceramic fiber cotton layer, and a polycrystalline fiber type ceramic fiber cotton layer.

8. The flameproof cable containment barrier of claim 1, wherein the ceramic fiberboard layer is one of a regular type ceramic fiberboard layer, a standard type ceramic fiberboard layer, a high purity type ceramic fiberboard layer, a high alumina type ceramic fiberboard layer, a low zirconium type ceramic fiberboard layer, a zirconium-containing type ceramic fiberboard layer, and a polycrystalline fiber type ceramic fiberboard layer.

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