阅读说明：本技术 一种遇火膨胀装置 (Fire-encountering expansion device ) 是由 朱福军 于 2019-12-20 设计创作，主要内容包括：本发明公开了一种遇火膨胀装置,包括安装于管道连接器外部的柔性防火元件,所述柔性防火元件由外向内依次包括包覆层、阻燃层及膨胀层,所述包覆层、阻燃层及膨胀层垂直于所述柔性防火元件轴线方向的长度依次减小,使得所述膨胀层在遇火受热时径向向外膨胀。当发生火情时本装置可以逐级隔离明火及隔温,从而保护里面的管件不受损伤。(The invention discloses a fire-encountering expansion device, which comprises a flexible fireproof element arranged outside a pipeline connector, wherein the flexible fireproof element sequentially comprises a coating layer, a flame-retardant layer and an expansion layer from outside to inside, and the lengths of the coating layer, the flame-retardant layer and the expansion layer, which are perpendicular to the axis direction of the flexible fireproof element, are sequentially reduced, so that the expansion layer radially expands outwards when being heated in a fire. When a fire occurs, the device can gradually isolate open fire and insulate heat, so that the pipe fittings inside are protected from being damaged.)

1. The utility model provides an expansion device meets fire, is including installing the flexible fire element in the pipeline connector outside, its characterized in that, flexible fire element outside-in includes coating, fire-retardant layer and inflation layer in proper order, coating, fire-retardant layer and inflation layer perpendicular to the length of flexible fire element axis direction reduces in proper order, makes the inflation layer radially outwards expands when meeting fire and being heated.

2. The fire expansion apparatus of claim 1, wherein said cladding is removably attached to said pipe connector by attachment fasteners.

3. The fire-encountering expansion device of claim 2, wherein the cladding comprises a flexible metal housing, the fire-retardant layer comprises a fire-retardant cloth in close proximity to the cladding, and the expansion layer comprises an expansion module.

4. The fire expansion device of claim 3, wherein in the flexible metal housing, the fixing portion is formed integrally with the ear portion, and the bent portion is provided with serrations for protecting both ends of the pipe connector in the axial direction; the fixing part comprises a first through hole and a second through hole which are used for fixing; the bending part is provided with a third through hole, and the first through hole is communicated with the third through hole.

5. The fire expansion device of claim 4, wherein a bolt is disposed in the second through hole, and the ear is secured to the conduit coupler by the bolt.

6. The fire-encountering expansion device according to claim 5, wherein fixing nuts are arranged in the first through hole and the third through hole, and the connecting and fastening device comprises a fastening screw, a fixing nut and a pressure plate.

7. The fire inflation device of claim 3, wherein the inflation module is made of a fire-resistant intumescent material.

8. The fire inflation device of claim 7, wherein the inflation module extends in a direction perpendicular to the axis of the flexible fire protection element.

9. The fire-encountering expansion device according to claim 7, wherein the number of the expansion modules is not less than 1, and a space is provided between two adjacent expansion modules.

10. The fire-encountering expansion device of claim 3, wherein the number of fire-retardant cloths is not less than 1.

Technical Field

The invention relates to the field of pipeline connecting equipment, in particular to an expansion device in case of fire.

Background

At present, pipelines are widely used as devices for transporting gas, liquid or fluid with solid particles. Such as a tap water pipeline, a gas pipeline, a sewage pipeline, etc. When the pipeline is installed, because the length of a single pipeline is limited, a plurality of pipelines are often required to be connected for use, and in order to facilitate the connection of the pipelines, the pipeline connector is invented.

The pipeline connector is used for being connected between two pipelines in need to the noose to this reaches the function of sealed pressure-bearing, makes intercommunication between each pipeline, and pipeline connector extensively is used for the pipe connection of different materials in trades such as oil, chemical industry, shipbuilding, platform, electric power, light industry, municipal administration and mechanical equipment.

However, the conventional pipe connectors used at present do not have fireproof performance, and cannot be used in occasions with fireproof requirements. Even when used, the sealing material in the pipe connector is carbonized and peeled off by the high temperature generated by combustion in case of fire, and the sealing effect cannot be obtained. The medium transported in the pipeline leaks, which causes greater safety accidents and economic losses.

Therefore, there is a need in the art to develop a new fire-fighting expansion device with a simple structure, which covers the outside of the pipe connector to protect the pipe connector from aging or falling off when it is exposed to fire.

Disclosure of Invention

In order to solve the technical problems in the prior art, the invention provides an expansion device in case of fire, which is used on the outer surface of the existing pipeline connector and comprises a metal layer, a flame-retardant cloth layer and an expansion layer.

In order to achieve the purpose, the invention provides the following specific technical scheme:

the utility model provides a meet fire expansion device, is including installing in the outside flexible fire prevention component of pipe connection ware, flexible fire prevention component outside-in includes coating, fire-retardant layer and inflation layer in proper order, coating, fire-retardant layer and inflation layer perpendicular to the length of flexible fire prevention component axis direction reduces in proper order, makes the inflation layer is radially outwards expanded when meeting fire and being heated.

Preferably, the coating is detachably connected to the pipe connector by a connection fastening means.

Preferably, the coating comprises a flexible metal casing, the fire-retardant layer comprises a fire-retardant cloth closely attached to the coating, and the expansion layer comprises an expansion module.

Preferably, in the flexible metal housing, the fixing portion is integrally formed with the ear portion, and the bent portion is provided with a serration for protecting both ends of the pipe connector in an axial direction; the fixing part comprises a first through hole and a second through hole which are used for fixing; the bending part is provided with a third through hole, and the first through hole is communicated with the third through hole.

Preferably, a bolt is arranged in the second through hole, and the ear part is fixed with the pipeline connector through the bolt.

Preferably, fixing nuts are arranged in the first through hole and the third through hole, and the connecting and fastening device comprises a fastening screw, a fixing nut and a pressing plate.

Preferably, the expansion module is made of a fire-resistant expansion material.

Preferably, the expansion module extends in a direction perpendicular to the axis of the flexible fire element.

Preferably, the number of the expansion modules is not less than 1, and a space is arranged between two adjacent expansion modules.

Preferably, the number of the flame-retardant cloth is not less than 1.

Aiming at the defect that the conventional pipeline connector in the prior art cannot realize the fireproof function, the invention has the beneficial effects that:

1. the three layers of detachable flexible fireproof elements are arranged outside the conventional pipeline connector, open fire and heat insulation are prevented from progressing layer by layer, and damage of external flame to the pipe fitting can be effectively prevented.

2. The device meet few cigarette and few dirt behind the fire firing, secondary damage when having avoided the fire fighter to fight a fire.

3. The flexible metal shell in the flexible fireproof element is in split design, so that the structure is light, and the installation is convenient.

4. The special-shaped design of the two axial ends of the flexible metal shell can effectively prevent open fire from invading from the side surface of the pipeline, and potential hidden danger is avoided.

5. The expansion module in the flexible fireproof element integrally expands after encountering high temperature to coat the pipe fitting and the pipeline connector, so that the temperature is insulated, and the damage of the joint of the pipe fitting is avoided.

Drawings

FIG. 1 is a front view of a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view of a front view of a preferred embodiment of the present invention;

FIG. 3 is a top view of a preferred embodiment of the present invention;

FIG. 4 is a right side view of a preferred embodiment of the present invention;

FIG. 5 is a perspective view of a preferred embodiment of the present invention;

FIG. 6 is an expanded view of the ear portion and the securing portion in a preferred embodiment of the present invention;

FIG. 7 is an expanded view of a flexure in a preferred embodiment of the present invention;

FIG. 8 is a perspective view of another preferred embodiment of the present invention;

FIG. 9 is a development view of a coating layer in another preferred embodiment of the solution according to the invention;

wherein: 10-a coating layer, 11-an ear part, 12-a fixing part, 13-a bending part, 14-a sawtooth, 15-a first through hole, 16-a second through hole and 17-a third through hole; 20-a flame retardant layer; 30-an intumescent layer; 40-connecting a fastening device, 41-connecting a stud, 42-locknut, 43-flat pad, 44-fastening screw, 45-pressing plate and 46-fixing nut; 50-pipe connector, 51-locking member; 60-bolt.

Detailed Description

As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.

Referring to fig. 1 to 7, the invention discloses a fire-encountering expansion device, which comprises a flexible fireproof element arranged outside a pipeline connector 50, wherein the flexible fireproof element sequentially comprises a coating layer 10, a flame-retardant layer 20 and an expansion layer 30 from outside to inside, and the lengths of the coating layer 10, the flame-retardant layer 20 and the expansion layer 30 perpendicular to the axis direction of the flexible fireproof element are sequentially reduced, so that the expansion layer radially expands outwards when being heated in a fire. Further, the coating layer 10 includes a flexible metal shell, preferably made of stainless steel, or other metal materials such as aluminum, copper, iron, etc., so as to effectively prevent the invasion of external open fire, the flame retardant layer 20 includes a flame retardant cloth closely attached to the coating layer, and the expansion layer 30 includes an expansion module.

Further, the covering 10 is detachably coupled to the pipe connector 50 by a coupling fastening means 40.

Because the coating and the pipeline connector are made of metal materials, and the metal materials have the properties of expansion with heat and contraction with cold, a certain interval exists between the flexible fireproof element and the pipeline connector, so that a certain deformation space is ensured when the temperature of the flexible fireproof element and the pipeline connector changes. When the pipeline meets fire, because of the needs that separate the temperature, consequently set up the expansion module, when filling the interval between flexible fire prevention component and the pipeline connector, because the length of cladding 10, fire-retardant layer 20 and expansion layer 30 perpendicular to the axis direction reduces in proper order for the expansion layer is met radially outwards inflation when being heated of fire, in order to protect the pipe fitting, and isolated high temperature.

Further, the expansion module is made of fireproof expansion materials, and the expansion module integrally expands to cover the pipe fitting and the connector when meeting high temperature, so that further thermal insulation is performed. Preferably, the expansion module is in the form of a rectangular sheet and extends in a direction perpendicular to the axis of the flexible fire protection element, or in the form of a v-21274so that the expansion module will wrap more quickly and completely after the side is heated. In a preferred embodiment, the number of the expansion modules is not less than 1, and a space is arranged between every two adjacent expansion modules to ensure that the expansion modules do not damage the pipe while protecting the pipe by thermal expansion.

Further, the number of the flame-retardant cloth is not less than 1 layer, and specifically, the flame-retardant cloth can be arranged into a plurality of layers according to the fire-retardant grade, so that the effects of preventing residual open fire and insulating temperature are achieved.

In a preferred embodiment, the ear portion 11 is integrally formed with the fixing portion 12, and is connected and fixed with the bending portion 13 by the connection fastening means 40, and the bending portion 13 is provided with saw teeth 14 for protecting both ends of the pipe connector in the axial direction; the fixing part 12 comprises a first through hole 15 and a second through hole 16 for fixing; the bending part is provided with a third through hole 17, and the first through hole 15 is communicated with the third through hole 17; the connection fastening device 40 includes a fastening screw 44, a pressure plate 45 and a fixing nut 46, and the fixing nut 46 is welded or riveted in a through hole at the connection of the bending portion 13 and the fixing portion 12, i.e., the first through hole 15 and the third through hole 17. Specifically, the fastening screw 44 may be a countersunk screw, a half-head screw, an inner hexagon screw, an outer hexagon screw, or the like, and the fixing nut 46 may be a weld nut (an energy storage weld nut, a two-point, four-point weld nut), a rivet nut (a press rivet nut, a pull rivet nut), or the like.

Specifically, a bolt 60 is disposed in the second through hole 16, and the ear 11 is fixed to the pipe connector 50 by the bolt 60.

In another preferred embodiment, as shown in fig. 8, the flexible metal shell includes an ear portion 11, a fixing portion 12 and a bending portion 13 which are integrally formed; the bending part 13 is provided with saw teeth 14 for protecting both ends of the pipe connector in the axial direction; the fixing part 12 comprises a first through hole 15 and a second through hole 16 for fixing; the ears 11 are oppositely disposed to protect the locking member 51 of the pipe connector 50.

Further, a bolt 60 is disposed in the second through hole 16, and the ear 11 is fixed to the pipe connector 50 by the bolt 60.

Further, the connection fastening device 40 includes an engagement stud 41, a locknut 42 and a flat pad 43, the engagement stud 41 is welded or riveted to the outer shell of the pipe connector 50, the locknut 42 and the flat pad 43 are installed in the first through hole 15, and the cladding 10 and the pipe connector 50 are fixed by the engagement stud 41.

Aiming at the defects in the prior art, the invention has the beneficial effects that:

1. the three layers of detachable flexible fireproof elements are arranged outside the conventional pipeline connector, open fire and heat insulation are prevented from progressing layer by layer, and damage of external flame to the pipe fitting can be effectively prevented.

2. The device meet few cigarette and few dirt behind the fire firing, secondary damage when having avoided the fire fighter to fight a fire.

3. The split type design of flexible metal casing in the flexible fire prevention component, the wholeness is stronger, and the structure is light, the installation of being convenient for.

4. The special-shaped design of the two axial ends of the flexible metal shell can effectively prevent open fire from invading from the side surface of the pipeline, and potential hidden danger is avoided.

5. The expansion module in the flexible fireproof element integrally expands after encountering high temperature to coat the pipe fitting and the pipeline connector, so that the temperature is insulated, and the damage of the joint of the pipe fitting is avoided.

The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the application as described herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.