CN213527239U

CN213527239U - Pipe end fire retardant device

Info

Publication number: CN213527239U
Application number: CN202022082829.4U
Authority: CN
Inventors: 张萍; 陈小平; 葛崇辉
Original assignee: Xi'an Feibao Technology Co ltd
Current assignee: Xi'an Feibao Technology Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-25
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a pipe end fire retardant device, which comprises a shell, a fire retardant core and a plurality of fixing mechanisms, wherein both ends of the shell are fixedly connected with first blocking rings, a plurality of through holes are respectively arranged at the front side and the rear side of the shell, and fixing bolts are respectively arranged inside the through holes; the fire retardant core is arranged inside the shell. The utility model discloses in, what this device adopted is hexagon honeycomb structure, constitute by back-fire relief core and casing, this constitutional unit is even, be difficult for receiving outside high humid environment's influence and freeze, because every constitutional unit all connects each other, super strong intensity and rigidity have, and can be according to combustible gas type, back-fire relief core material and resistant burning time, through calculating and finite element difference method, calculate corresponding back-fire relief core unit check diameter and length can, the mounted position of this device, different casings that can arrange in pairs, the installation, dismantle conveniently, and can practice thrift the cost greatly, reduce the development risk of product.

Description

Pipe end fire retardant device

Technical Field

The utility model relates to a back-fire relief device technical field especially relates to a pipe end back-fire relief device.

Background

The mode of preventing flame propagation is controlled by a physical cut-off valve, the reaction time has a certain delay, manual operation and control are needed when the ventilation function is recovered, and fire retardant devices used on civil aircrafts are imported. The design method of the key size of the pipe end fire retardant device for the purpose is not determined at home.

The application of the fire retardant device in a fuel oil system is very urgent, along with the requirements and popularization specified by airworthiness management, the combat environment of various types of equipment for coping with various complex weather is deeper and deeper, and the application and popularization of the equipment in the aviation fuel oil system are urgently needed to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the propagation problem of preventing flame in the pipeline, it will guarantee certain flow of ventilating, will definitely block the propagation of flame again, and the equipment of the protection pipeline other end is avoided flame erosion or is reserved certain flame diffusion time under the emergent landing condition and supplies the machine to go up evacuation of goods and materials and personnel, and a pipe end back-fire relief device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a pipe end fire retardant device comprises a shell, a fire retardant core and a plurality of fixing mechanisms, wherein two ends of the shell are fixedly connected with first blocking rings, a plurality of through holes are formed in the front side and the rear side of the shell, and fixing bolts are arranged inside the through holes; the fire retardant core is arranged inside the shell; it is a plurality of fixed establishment sets up the both ends at the casing respectively, fixed establishment includes second separation ring, the one end fixedly connected with of second separation ring connects the casing, the one end fixedly connected with clamping ring of connecting the casing, the clamping ring is inserted with the casing and is established and be connected, the side all sets up threaded hole around the clamping ring.

As a further description of the above technical solution:

and the fixing bolts are in threaded connection with the corresponding threaded holes.

As a further description of the above technical solution:

the shell is integrally processed by stainless steel materials, and the size of the shell is phi 55mm multiplied by 150 mm.

As a further description of the above technical solution:

the fire retardant core is formed by welding stainless steel materials with a hexagonal honeycomb structure, and the six-grid size of the fire retardant core is phi L3.1mm.

As a further description of the above technical solution:

the firestop core extends through the entire shell and has a total of 185 complete six squares.

The utility model discloses following beneficial effect has:

1. this pipe end back-fire relief device, when using, through casing, fixing bolt, first separation ring, second separation ring, the connection casing that sets up, clamping ring, screw hole, back-fire relief core, through-hole, the functional principle of back-fire relief device is: the device adopts a hexagonal honeycomb structure which consists of a fire retardant core and a shell, the structural units are uniform and are not easy to freeze due to the influence of external high-humidity environment, each structural unit is mutually connected and has super-strong strength and rigidity, and the diameter and the length of the corresponding fire retardant core unit cell can be calculated according to the combustible gas type, the fire retardant core material and the burning resistance time by a calculation and finite element difference method, the installation position of the device can be matched with different shells, the installation and the disassembly are convenient, and the cost can be greatly saved, reducing the development risk of the product.

Drawings

Fig. 1 is a front view of the present invention;

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

fig. 3 is a side view of the present invention;

fig. 4 is a schematic structural view of the fixing mechanism of the present invention;

fig. 5 is a schematic view of the housing structure of the present invention.

Illustration of the drawings:

1. a housing; 2. fixing the bolt; 3. a first barrier ring; 4. a second barrier ring; 5. connecting the shell; 6. pressing a ring; 7. a threaded hole; 8. a fire retardant core; 9. and a through hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-5, the present invention provides an embodiment: a pipe end fire retardant device comprises a shell 1, a fire retardant core 8 and a plurality of fixing mechanisms, wherein both ends of the shell 1 are fixedly connected with first blocking rings 3, a plurality of through holes 9 are formed in the front side and the rear side of the shell 1, and fixing bolts 2 are arranged in the through holes 9; the flame retardant core 8 is arranged inside the shell 1; a plurality of fixed establishment set up respectively at the both ends of casing 1, and fixed establishment includes second separation ring 4, and casing 5 is connected to the one end fixedly connected with of second separation ring 4, connects casing 5's one end fixedly connected with clamping ring 6, and clamping ring 6 inserts with casing 1 and establishes and be connected, and threaded hole 7 is all seted up to the side around clamping ring 6.

The fixing bolts 2 are in threaded connection with the corresponding threaded holes 7, and the fixing mechanism and the shell 1 can be fixed by matching the fixing bolts 2 in the through holes 9 in the shell 1 with the threaded holes 7 in the compression ring 6, so that the fire retardant core 8 can be clamped in the shell 1 through the fixing mechanism; the shell 1 is integrally machined from stainless steel, and the size of the shell 1 is phi 55mm beta 150 mm; the fire retardant core 8 is formed by welding stainless steel materials with a hexagonal honeycomb structure, and the six-grid size of the fire retardant core 8 is phi L3.1mm; fire retardant core 8 runs through whole casing 1, and totally 185 complete six squares, and fire retardant core 8 that this device adopted cooperates with casing 1 for hexagon honeycomb for the constitutional unit is even, is difficult for receiving outside high humid environment's influence and icing, because every constitutional unit all connects each other, has superstrong intensity and rigidity.

The working principle is as follows: the device is direct to link to each other with fuel inerting system pipeline, back-fire relief core 8 sets up inside casing 1, cooperate through fixing bolt 2 in 1 last through-hole 9 of casing and screw hole 7 on the clamping ring 6, fix fixed establishment and casing 1 after, the clamping ring 6 of 1 both sides of casing can support back-fire relief core 8, thereby establish back-fire relief core 8 card inside casing 1 through fixed establishment, can form the mounting groove between the first separation ring of 1 both sides of casing and the second separation ring 4, buckle formula meets inside and outside direct adoption through the mounting groove between the pipeline, under general operating condition, partly as the pipeline provides the runner of ventilating, prevent flame propagation under the special operating condition.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a pipe end back-fire relief device, includes casing (1), back-fire relief core (8), a plurality of fixed establishment, its characterized in that: the two ends of the shell (1) are fixedly connected with first blocking rings (3), the front side and the rear side of the shell (1) are respectively provided with a plurality of through holes (9), and fixing bolts (2) are arranged inside the through holes (9); the fire retardant core (8) is arranged inside the shell (1); it is a plurality of fixed establishment sets up both ends at casing (1) respectively, fixed establishment includes second separation ring (4), casing (5) are connected to the one end fixedly connected with of second separation ring (4), the one end fixedly connected with clamping ring (6) of connecting casing (5), clamping ring (6) are inserted with casing (1) and are established and be connected, threaded hole (7) are all seted up to the side around clamping ring (6).

2. A pipe end firestop device as defined in claim 1, wherein: and the fixing bolts (2) are in threaded connection with the corresponding threaded holes (7).

3. A pipe end firestop device as defined in claim 1, wherein: the shell (1) is integrally processed by stainless steel materials, and the size of the shell (1) is phi 55mm multiplied by 150 mm.

4. A pipe end firestop device as defined in claim 1, wherein: the fire retardant core (8) is formed by welding stainless steel materials with a hexagonal honeycomb structure, and the size of a six-grid of the fire retardant core (8) is phi L3.1mm.

5. A pipe end firestop device as defined in claim 1, wherein: the fire retardant core (8) extends through the entire housing (1) and has a total of 185 complete six squares.