CN215596609U

CN215596609U - Fire-resistant air grid of pipeline

Info

Publication number: CN215596609U
Application number: CN202122124782.8U
Authority: CN
Inventors: 马琴艳; 王品
Original assignee: Hangzhou Biyou Building Materials Technology Co ltd
Current assignee: Hangzhou Biyou Building Materials Technology Co ltd
Priority date: 2021-09-04
Filing date: 2021-09-04
Publication date: 2022-01-21
Anticipated expiration: 2031-09-04

Abstract

The utility model relates to the technical field of fireproof plugging, in particular to a pipeline fireproof air grid; in the utility model, the expansion assembly is clamped and fixed on the pipeline by the mounting sleeve, the first annular fireproof plate in the expansion assembly sleeves the second annular fireproof plate, the second annular fireproof plate sleeves the pipeline, and when a fire disaster happens, the first annular fireproof plate and the second annular fireproof plate expand to wrap the pipeline and block gaps in the pipeline, so that the spreading of toxic gas and smoke generated in the fire disaster and the fire disaster is prevented, the spreading of toxic smoke generated in the fire disaster and the fire disaster can be effectively limited, and the safety of personnel and equipment in areas except for a fire source is protected.

Description

Fire-resistant air grid of pipeline

Technical Field

The utility model relates to the technical field of fireproof plugging, in particular to a pipeline fireproof air grid.

Background

The fireproof plug is used for plugging various penetrations, such as various openings formed when cables, air pipes, oil pipes, air pipes and the like pass through the wall (warehouse) wall and the floor (deck) and the fireproof separation of a cable bridge so as to prevent fire from spreading through the openings and gaps, and has an excellent fireproof function; the fireproof plugging is to use fireproof plugging material to seal a cable or a pipeline to penetrate through a wall or a floor slab to form a hole, and the fireproof plugging material has the function of preventing a fire from spreading to an area adjacent to a fire source, so that the aim of protecting the safety of personnel and equipment is fulfilled.

The basic principle of the fireproof plugging is that the plugging material plays roles of expansion, heat absorption and heat insulation, expands when meeting fire to seal gaps left by combustible combustion, and prevents the spread of toxic gas and smoke generated in the fire and the fire; the heat absorption and the heat insulation are carried out to reduce the temperature of the back fire surface of the penetration object and prevent the combustible substance on the back fire surface from spontaneous combustion;

the meaning of fire prevention shutoff lies in when the conflagration takes place, and it can restrict the spreading of the poisonous flue gas that produces in the conflagration and the conflagration effectively to the safety of the personnel and the equipment of the region outside the source of a fire protection.

At present, the fireproof plugging to the pipeline is inconvenient to install and poor in fireproof effect.

Disclosure of Invention

In order to overcome the above-mentioned disadvantages, it is an object of the present invention to provide a fire-resistant air grille for a duct, which is constructed such that an expansion assembly is fastened to the duct by means of a mounting sleeve, a first annular fire protection plate provided in the expansion assembly is fitted over a second annular fire protection plate provided in the expansion assembly, and the second annular fire protection plate is fitted over the duct, and when a fire occurs, the first annular fire protection plate and the second annular fire protection plate are expanded to cover the duct, and gaps in the duct are blocked, thereby preventing the spread of toxic gases and smoke generated from the fire and the fire.

The technical scheme for solving the technical problem is as follows:

a fire resistant air grille for a duct, comprising an expansion assembly and a mounting sleeve for retaining said expansion assembly, said expansion assembly being expandable in the presence of a fire, said expansion assembly comprising a first annular flame retardant panel and a second annular flame retardant panel; the head of the mounting sleeve is provided with a groove, the tail of the mounting sleeve is provided with a hook piece, and the hook piece is inserted into the groove to form a ring sleeve to sleeve the expansion component.

As an improvement of the utility model, a support sheet for supporting the expansion assembly is arranged inside the mounting sleeve.

As a further improvement of the utility model, the outer side of the mounting sleeve is provided with a bendable clamping piece for clamping the expansion assembly.

As a further improvement of the utility model, the outer side of the mounting sleeve is provided with a mounting sheet, and the mounting sheet is provided with a mounting hole.

As a further refinement of the utility model, the first and second annular flame retardant panels are both fire retardant intumescent panels.

As a further improvement of the utility model, the fireproof expansion plate comprises an expansion inner core and a winding insulating adhesive tape, wherein the expansion inner core is wound by the winding insulating adhesive tape.

As a further improvement of the utility model, the expansion inner core is made of expanded graphite, ethylene-vinyl acetate copolymer and a flame retardant.

As a further improvement of the utility model, the number of the mounting pieces is 3-6.

As a further improvement of the utility model, the number of the cards is 6-12.

As a further improvement of the utility model, the number of the supporting sheets is 10-20.

In the utility model, the expansion assembly is clamped and fixed on the pipeline by the mounting sleeve, the first annular fireproof plate in the expansion assembly sleeves the second annular fireproof plate, the second annular fireproof plate sleeves the pipeline, and when a fire disaster happens, the first annular fireproof plate and the second annular fireproof plate expand to wrap the pipeline and block gaps in the pipeline, so that the spreading of toxic gas and smoke generated in the fire disaster and the fire disaster is prevented, the spreading of toxic smoke generated in the fire disaster and the fire disaster can be effectively limited, and the safety of personnel and equipment in areas except for a fire source is protected.

Drawings

For ease of illustration, the present invention is described in detail by the following preferred embodiments and the accompanying drawings.

FIG. 1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is an internal, fragmentary, schematic view of a first annular flame retardant panel of the utility model;

FIG. 4 is an enlarged view of A in FIG. 2;

reference numerals: 1-mounting sleeve, 11-groove, 12-hook piece, 13-support piece, 14-clamping piece, 2-first annular fireproof plate, 3-second annular fireproof plate, 4-expansion inner core and 5-winding insulating adhesive tape.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

As shown in fig. 1 to 4, a fire-resistant air grille for a pipeline according to the present invention includes an expansion member and a mounting sleeve 1 for retaining the expansion member, the expansion member being expandable in the presence of fire, the expansion member including a first annular fire-proof plate 2 and a second annular fire-proof plate 3, and in particular, the first annular fire-proof plate 2 and the second annular fire-proof plate 3 are both fire-resistant expansion plates, the fire-resistant expansion plates include an expansion core 4 and a wrapping insulating tape 5, the expansion core 4 is wrapped by the wrapping insulating tape 5, and the expansion core is made of expanded graphite, ethylene-vinyl acetate copolymer and a flame retardant agent; specifically, the first annular fireproof plate 2 is sleeved on the second annular fireproof plate 3, the second annular fireproof plate 3 is sleeved on the pipeline, when a fire disaster occurs, when the temperature reaches 300 ℃, the wound insulating tape is broken, when the temperature reaches 400 ℃, the first annular fireproof plate 2 and the second annular fireproof plate 3 are expanded to wrap the pipeline, gaps in the pipeline are blocked, the spreading of toxic gas and smoke generated in the fire disaster and the fire disaster is prevented, the spreading of the toxic smoke generated in the fire disaster and the fire disaster can be effectively limited, and therefore the safety of personnel and equipment in areas except for an ignition source is protected.

In the utility model, the head part of the mounting sleeve 1 is provided with a groove 11, the tail part of the mounting sleeve 1 is provided with a hook piece 12, the hook piece 12 is inserted into the groove 11 to form a ring sleeve to sleeve the expansion component, and the first annular fireproof plate 2 and the second annular fireproof plate 3 in the expansion component are prevented from falling off; in order to better clamp the first annular fireproof plate 2 and the second annular fireproof plate 3, a supporting plate 13 for supporting the expansion assembly is arranged on the inner side of the mounting sleeve 1, the supporting plate 13 supports the bottom end faces of the first annular fireproof plate 2 and the second annular fireproof plate 3 and prevents the first annular fireproof plate 2 and the second annular fireproof plate 3 from falling down, and the length of the supporting plate 13 is greater than or equal to the sum of the thicknesses of the first annular fireproof plate 2 and the second annular fireproof plate 3; still further, the outside of installing cover 1 is provided with the card 14 that is used for cliping the inflation subassembly that can buckle, and card 14 can buckle, clips first annular PLASTIC LAMINATED 2 and second annular PLASTIC LAMINATED 3, makes first annular PLASTIC LAMINATED 2 and second annular PLASTIC LAMINATED 3 difficult internal coiling.

In order to better install, the outer side of the installation sleeve 1 is provided with an installation sheet, the installation sheet is provided with an installation hole, and the installation sheet is fixed on the pipeline through the installation hole after being sleeved on the pipeline, so that the pipeline installation device can be more stably fixed on the pipeline and is not easy to fall off.

In the utility model, for better fixing, the number of the mounting pieces is 3-6, preferably 5, and each mounting piece is provided with 2 mounting holes.

To better clamp the first and second annular flame retardant plates 2, 3 with the clips 14,

the number of the cards 14 is 6-12, and preferably, the number of the cards 14 is 10.

For better supporting the first annular flame retardant plate 2 and the second annular flame retardant plate 3, the number of the supporting plates 13 is 10 to 20, and preferably, the number of the supporting plates 13 is 15.

The utility model provides an embodiment, which comprises an expansion component and a mounting sleeve 1 for clamping the expansion component, wherein the expansion component can expand when encountering fire, the expansion component comprises a first annular fireproof plate 2 and a second annular fireproof plate 3, the first annular fireproof plate 2 sleeves the second annular fireproof plate 3, the second annular fireproof plate 3 sleeves a pipeline, the first annular fireproof plate 2 and the second annular fireproof plate 3 are both fireproof expansion plates, each fireproof expansion plate comprises an expansion inner core 4 and a winding insulating adhesive tape 5, the expansion inner core 4 is wound by the winding insulating adhesive tape 5, the expansion inner core is made of expanded graphite, ethylene-vinyl acetate copolymer and a flame retardant agent, a groove 11 is arranged at the head part of the mounting sleeve 1, a hook piece 12 is arranged at the tail part of the mounting sleeve 1, the hook piece 12 is inserted into the groove 11 to form a ring sleeve to sleeve the expansion component, a supporting piece 13 for supporting the expansion component is arranged at the inner side of the mounting sleeve 1, the bottom terminal surface of first annular PLASTIC LAMINATED 2 and second annular PLASTIC LAMINATED 3 is held to backing sheet 13, backing sheet 13 equals the sum of first annular PLASTIC LAMINATED 2 and the 3 two thickness of second annular PLASTIC LAMINATED, the quantity of backing sheet 13 is 15, and the outside of installation cover 1 is provided with the card 14 that can be buckled and be used for cliping expansion assembly, the quantity of card 14 is 10, the outside of installation cover 1 sets up the installation piece, be provided with the mounting hole on the installation piece, the quantity of installation piece is 5, be provided with 2 mounting holes on every installation piece.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A fire resistant air grille for a duct, comprising an expansion assembly and a mounting sleeve for retaining said expansion assembly, said expansion assembly being expandable in the presence of a fire, said expansion assembly comprising a first annular flame retardant panel and a second annular flame retardant panel; the head of the mounting sleeve is provided with a groove, the tail of the mounting sleeve is provided with a hook piece, and the hook piece is inserted into the groove to form a ring sleeve to sleeve the expansion component.

2. The ducted fire resistant air grille of claim 1 wherein the mounting sleeve is provided on an inner side thereof with support tabs for supporting said expansion assembly.

3. The ducted fire resistant air grille of claim 2 wherein the mounting sleeve is provided with bendable tabs on the outside thereof for gripping said expansion assembly.

4. The fire resistant air grille of claim 3 wherein the mounting sleeve has mounting tabs on the outside thereof, said mounting tabs having mounting holes therein.

5. A fire resistant air grille in accordance with claim 1 wherein both of said first and second annular fire shield plates are fire resistant intumescent plates.

6. The ducted fire resistant air grille of claim 5 wherein said fire resistant expansion panel includes an expansion core and a wound insulating tape, said expansion core being wound by said wound insulating tape.

7. The ducted fire resistant air grille of claim 6 wherein said intumescent core is made from expanded graphite, ethylene vinyl acetate and a flame retardant.

8. The ducted fire resistant air grille of claim 4 wherein the number of said mounting tabs is 3 to 6.

9. The ducted fire resistant air grille of claim 8 wherein the number of said tabs is 6 to 12.

10. The fire resistant air grill of claim 9, wherein the number of support pieces is 10 to 20.