CN217927703U

CN217927703U - Corrugated metal hose

Info

Publication number: CN217927703U
Application number: CN202221316064.9U
Authority: CN
Inventors: 康宇涵; 赵长森; 牛强; 郭雄伟; 聂大欢
Original assignee: Ordos Xijin Mining And Metallurgy Co ltd; Inner Mongolia Erdos Electric Power Metallurgy Group Co Ltd
Current assignee: Ordos Xijin Mining And Metallurgy Co ltd; Inner Mongolia Erdos Electric Power Metallurgy Group Co Ltd
Priority date: 2022-05-27
Filing date: 2022-05-27
Publication date: 2022-11-29
Anticipated expiration: 2032-05-27

Abstract

The utility model belongs to the technical field of liquid conveying, in particular to a corrugated metal hose, which comprises a corrugated metal pipe web, wherein inner pipe heads are arranged at two ends of the pipe web, an inner wire coat is sleeved on the periphery of each inner pipe head, and an outer wire joint is arranged outside each inner pipe head; the outer wall of the outer screw joint is provided with an external thread, the inner wall of the inner screw outer sleeve is provided with an internal thread, and the outer screw joint is connected with the inner screw outer sleeve through a thread; interior tube head with set up first insulating part and second insulating part between the interior silk overcoat, interior tube head with set up the third insulating part between the outer silk connects. The utility model discloses have high temperature resistant, withstand voltage, insulating, displacement compensation function, simultaneously the utility model discloses set up the insulating part into first insulating part, second insulating part, third insulating part to set up the first insulating part of inside into multistage concatenation form, the dismouting and the maintenance of being convenient for reduce the maintenance cost.

Description

Corrugated metal hose

Technical Field

The utility model belongs to the technical field of liquid transport, concretely relates to high temperature resistant, high pressure resistant and insulating corrugated metal hose mainly is applied to high temperature such as metallurgy, carbide, high pressure, has the equipment pipe connection scene of insulating requirement.

Background

In the field of metallurgy or water and gas transportation, a transportation pipeline is generally needed, particularly in the field of metallurgy, the production environment is severe, for example, when a submerged arc furnace is used, water cooling is needed, and water is transported by using the pipeline, so that the pipeline used in the submerged arc furnace is required to have the functions of high temperature resistance, pressure resistance, insulation and certain displacement compensation, and the pipeline is generally made of rubber tubes with insulating property. However, after the rubber tube is used for a long time, the rubber tube is easy to age, so that the pipeline is broken, even the tube is exploded, finally the furnace shutdown accident is caused, and the loss is huge.

In order to solve the problem that a rubber tube is easy to age, the material of the rubber tube can be changed, for example, a metal hose is adopted, and the prior art CN213685646U discloses an insulated fuel gas connecting tube. This connecting pipe passes through insulating part, sealed pad and nonmetal coating layer constitution insulating system, keeps apart the metal parts in the pipeline, can't form the return circuit to free electron's circulation in the separation pipeline has stopped the risk of electric breakdown, and the contact with the electrified body of external world has been avoided to the outer cladding nonmetal coating layer of ripple flexible body simultaneously. However, the insulators in the connecting pipe are integrated, if the insulators are damaged once, the sealing performance is deteriorated, the insulators need to be replaced, and the insulators need to be replaced integrally, so that the connecting pipe is inconvenient to assemble and disassemble and high in maintenance cost.

To sum up, in order to facilitate the dismouting of connecting pipe, reduce the maintenance cost of insulator, the utility model provides a corrugated metal hose.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model provides a corrugated metal hose.

In order to realize the purpose, the utility model discloses the technical scheme who adopts as follows:

a corrugated metal hose comprises a corrugated metal pipe web, wherein inner pipe heads are arranged at two ends of the pipe web, an inner wire outer sleeve is sleeved on the periphery of each inner pipe head, and an outer wire connector is arranged on the outer side of each inner pipe head; the outer wall of the outer screw joint is provided with an external thread, the inner wall of the inner screw outer sleeve is provided with an internal thread, and the outer screw joint is connected with the inner screw outer sleeve through a thread;

interior tube head with set up first insulating part and second insulating part between the interior silk overcoat, interior tube head with set up the third insulating part between the outer silk connects.

Further, the outer wall of interior tube head has the flange, the inner wall of interior silk overcoat has interior knot, interior silk overcoat passes through interior knot with the cooperation of flange is restricted on interior tube head.

Furthermore, a first insulating part is arranged between the inner buckle and the flange, and the cross section of the first insulating part is L-shaped; and a second insulating part is arranged between the inner wire outer sleeve and the flange.

Furthermore, the first insulating part comprises at least 2 circular arc-shaped insulating tiles, and the insulating tiles are sequentially spliced along the circumference to form the annular first insulating part.

Further, the outer wall of the outer wire joint is provided with a boss.

Furthermore, a boss is arranged in the middle of the outer wall of the outer screw joint, and external threads are arranged on the outer wall of the outer screw joint outside the boss.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model changes the rubber tube into the corrugated tube made of metal material, improves the high temperature resistance, and the corrugated metal tube has the displacement compensation function, and simultaneously the utility model is provided with the inner tube head at the end of the metal tube web, the periphery of the inner tube head is provided with the inner wire coat, and the insulating part is arranged between the inner tube head and the inner wire coat, thereby providing the insulating property for the metal hose; set up the insulating part into first insulating part, second insulating part, third insulating part to set up inside first insulating part into multistage concatenation form, the dismouting and the maintenance of being convenient for reduce the maintenance cost.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Description of reference numerals:

1-pipe belly, 2-inner pipe head, 3-inner wire outer sleeve, 4-outer wire joint, 5-first insulating part, 6-second insulating part and 7-third insulating part.

Detailed Description

The technical solution of the present invention will be described clearly with reference to the accompanying drawings, and it is obvious that the described embodiments are not all embodiments of the present invention, and all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that the terms "center", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1, the utility model provides a corrugated metal hose, which comprises a corrugated metal pipe web 1, wherein inner pipe heads 2 are arranged at two ends of the pipe web 1, an inner wire outer sleeve 3 is sleeved on the periphery of each inner pipe head 2, and an outer wire joint 4 is arranged outside each inner pipe head 2; the outer wall of the outer screw joint 4 is provided with external threads, the inner wall of the inner screw outer sleeve 3 is provided with internal threads, and the outer screw joint 4 is connected with the inner screw outer sleeve 3 through threads; interior tube head 2 with set up first insulating part 5 and second insulating part 6 between the interior silk overcoat 3, interior tube head 2 with set up third insulating part 7 between the outer silk connects 4.

Further, the outer wall of interior tube head 2 has the flange, the inner wall of interior silk overcoat 3 has interior knot, interior silk overcoat 3 passes through interior knot with the cooperation of flange is restricted on interior tube head 2. A first insulating part 5 is arranged between the inner buckle and the flange, and the cross section of the first insulating part 5 is L-shaped; and a second insulating part 6 is arranged between the inner wire outer sleeve 3 and the flange. The first insulating part 5 comprises at least 2 arc-shaped insulating tiles, and the insulating tiles are sequentially spliced along the circumference to form the annular first insulating part 5. The first insulating part 5, the second insulating part 6 and the third insulating part 7 can be made of polytetrafluoroethylene materials, and can also be made of other high-temperature-resistant insulating sealing materials. The polytetrafluoroethylene insulator not only can provide insulating performance, but also can provide sealing performance, so that the metal hose has high-pressure resistance.

Furthermore, the outer wall of the outer wire joint 4 is provided with a boss, and the boss is convenient for connecting a metal hose and other equipment.

Furthermore, a boss is arranged in the middle of the outer wall of the outer screw joint 4, and an external thread is arranged on the outer wall of the outer screw joint 4 outside the boss. In other embodiments, if the device side to be connected is a quick-connect plug, the outer wall of the external screw joint 4 outside the boss can also be a smooth surface; the outer wire joint and other equipment can be connected by adopting a welding mode.

In the embodiment, the inner pipe head 2 is connected with the pipe web 1 in a welding mode, the inner wire outer sleeve 3 is sleeved on the pipe web 1 before the inner pipe head 2 is welded, and then the inner pipe head 2 is welded with the pipe web 1; then, placing a plurality of insulating tiles on the inner wall of the flange of the inner tube head 2, splicing the insulating tiles into a circumferential first insulating part 5, pressing the inner buckle of the inner wire outer sleeve 3 on the flange of the inner tube head 2, and pressing the first insulating part 5 between the flange and the inner buckle; then, a second insulating part 6 is placed, wherein the second insulating part 6 needs to be a whole circumference, so that dislocation is avoided during installation; then a third insulating part 7 is put in, and the outer wire joint 4 is screwed into the inner wire outer sleeve 3 and screwed tightly, thus completing the installation.

When needing to maintain, can pull down outer silk joint 4, then change third insulator 7 or second insulator 6, if need change one of them insulating tile in the first insulator 5, only need keep away from interior silk overcoat 3 and interior stub bar 2, can take out insulating tile, compare in prior art need demolish the interior stub bar, just can take out the mode of insulator, it is simple and convenient to maintain, and the maintenance cost is lower moreover.

It should be finally noted that the above only serves to illustrate the technical solution of the present invention, and not to limit the scope of the present invention, and that simple modifications or equivalent replacements performed by those skilled in the art to the technical solution of the present invention do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A corrugated metal hose comprises a corrugated metal pipe web, wherein inner pipe heads are arranged at two ends of the pipe web, and an inner wire outer sleeve is sleeved on the periphery of each inner pipe head; the outer wall of the outer screw joint is provided with an external thread, the inner wall of the inner screw outer sleeve is provided with an internal thread, and the outer screw joint is connected with the inner screw outer sleeve through a thread;

2. The corrugated metal hose of claim 1, wherein the outer wall of the inner tube head has a flange, and the inner wall of the inner wire casing has an inner thread, and the inner wire casing is constrained to the inner tube head by the engagement of the inner thread and the flange.

3. The corrugated metal hose of claim 2, wherein a first insulating member is disposed between the inner buckle and the flange, and the first insulating member has an L-shaped cross section; and a second insulating part is arranged between the inner wire outer sleeve and the flange.

4. The corrugated metal hose of claim 3, wherein the first insulating member comprises at least 2 circular arc-shaped insulating tiles, and the insulating tiles are sequentially spliced along the circumference to form the annular first insulating member.

5. The corrugated metal hose of claim 1, wherein the outer wire fitting outer wall is provided with a boss.

6. The corrugated metal hose of claim 5, wherein a boss is provided at a middle portion of an outer wall of the outer wire fitting, and an external thread is provided on an outer wall of the outer wire fitting outside the boss.