Corrosion-resistant and vibration-resistant heat insulation metal hose

Abstract

The utility model relates to the field of corrugated compensators, in particular to a corrosion-resistant and vibration-resistant heat insulation metal hose. The metal hose comprises a bushing ring, a corrugated pipe, a gasket, a metal net sleeve and a joint; the two ends of the corrugated pipe are provided with straight tube installation areas, and the bushing rings are installed on the inner ring faces of the straight tube installation areas. The liner sleeve is sleeved outside the corrugated pipe, the corrugations of the liner sleeve and the corrugations of the corrugated pipe are conformal, the straight tube mounting area of the liner sleeve is shorter than the straight tube mounting area of the corrugated pipe, and the liner sleeve is adhered to the outer ring surface of the straight tube mounting area; the metal net sleeve is sleeved on a whole formed by the corrugated pipe and the liner; the metal net sleeve is divided into a mounting section and a corrugated avoiding section; the joint sleeves the mounting section of the metal net sleeve; and the bushing ring, the corrugated pipe, the metal net sleeve and the joint are fixedly connected together at the ends of the four parts.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of corrugated compensator, specifically to a corrosion-resistant and anti-vibration heat-insulating metal hose. BACKGROUND

[0002] Metal hose is an important compensation structural part in engineering technology, which is usually composed of corrugated flexible pipe and joint. In fluid conveying system, it has the functions of length, temperature, position and angle compensation in addition to the functions of ordinary pipeline. Especially in coastal, vibration environment, bending installation environment and system contact environment, the compensator is required to have corrosion resistance, anti-vibration and heat insulation functions. SUMMARY

[0003] The metal hose is suitable for high-temperature fluid passing, and has corrosion resistance, anti-vibration and heat insulation functions.

[0004] TECHNICAL SCHEME

[0005] The utility model provides a corrosion-resistant and anti-vibration heat-insulating metal hose, which comprises a lining ring, a corrugated pipe, a gasket, a metal mesh cover and a joint.

[0006] The corrugated pipe is provided with a straight cylinder mounting area at both ends, and the lining ring is mounted on the inner ring surface of the straight cylinder mounting area.

[0007] The gasket is sleeved on the outside of the corrugated pipe, and the corrugations of the gasket sleeve are conformal to the corrugations of the corrugated pipe. The straight cylinder mounting area of the gasket sleeve is shorter than the straight cylinder mounting area of the corrugated pipe and is pasted on the outer ring surface of the straight cylinder mounting area.

[0008] The metal mesh cover is sleeved on the whole composed of the corrugated pipe and the gasket. The metal mesh cover is divided into a mounting section and a wave-avoiding section. The joint is sleeved on the mounting section of the metal mesh cover.

[0009] The lining ring, the corrugated pipe, the metal mesh cover and the joint are fixed together at the four ends.

[0010] Further, the hose further comprises a heat insulation cotton cover sleeved on the wave-avoiding section of the metal mesh cover.

[0011] Further, a step is arranged on the inner ring of the outer end of the joint, and the end surface of the lining ring, the end surface of the corrugated pipe, the end surface of the metal mesh cover and the step surface are welded together.

[0012] Further, the joint is externally provided with external threads to realize direct screwing and fixing with the conveying system, without the need to increase additional joints, and the heat insulation cotton cover is convenient to assemble.

[0013] Further, the outer ring surface of the lining ring, the straight cylinder mounting area of the corrugated pipe, the straight cylinder mounting area of the gasket, the mounting section of the metal mesh cover and the inner ring surface of the joint are coated with high-temperature resistant and corrosion-resistant sealing glue on the surface before assembly.

[0014] Further, during assembly, the lining ring needs to be cold-drawn, and the joint needs to be hot-expanded, so as to facilitate the sleeving together.

[0015] Beneficial effects:

[0016] The lining ring, the corrugated pipe, the gasket, the metal mesh sleeve and the joint are coated with high-temperature-resistant sealing glue, so that corrosion resistance can be realized; the welding seams of the lining ring, the corrugated pipe, the metal mesh sleeve and the joint are arranged at the internal steps of the joint, so that the overall appearance of the metal hose is improved; the joint is externally provided with threads, so that direct screwing and fixing with a conveying system can be realized, and no additional joint needs to be added, and the form is convenient for sleeving and replacing of the heat insulation cotton sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model;

[0018] Figure 2 To Figure 1 is an enlarged view of part A in the middle;

[0019] Figure number explanation: 1-lining ring, 2-corrugated pipe, 3-gasket, 4-metal mesh sleeve, 5-joint, 6-heat insulation cotton sleeve. DETAILED DESCRIPTION

[0020] In order to facilitate the description, spatial relative terms such as "inner", "outer" and the like can be used herein for describing the relationship of one element or feature relative to another element or feature shown in the drawings.

[0021] As Figures 1-2 shown, the utility model has a hose body and a joint connected with the hose body at both ends through welding and gluing; the hose body and the joint are integrally formed, and from inside to outside, the hose body and the joint include a lining ring 1, a corrugated pipe 2, a gasket 3, a metal mesh sleeve 4, a joint 5 and a heat insulation cotton sleeve 6; the lining ring is arranged at both ends inside the corrugated pipe; the corrugated pipe is flattened and sleeved outside the lining ring at both ends; the gasket is arranged between the corrugated pipe and the metal mesh sleeve, and is arranged only at both ends; the metal mesh sleeve is arranged outside the corrugated pipe (arranged outside the gasket at both ends); the joint is arranged outside both ends of the metal mesh sleeve, the joint is internally provided with a step, and is externally provided with external threads; and the heat insulation cotton sleeve is sleeved outside the metal mesh sleeve.

[0022] The lining ring, the corrugated pipe, the metal mesh sleeve and the joint are made of corrosion-resistant stainless steel material; the gasket is made of high-temperature-resistant rubber material; and the heat insulation cotton sleeve is made of high-temperature-resistant, corrosion-resistant and heat-insulating cotton material.

[0023] Below, with reference to the drawings, the utility model is carried out more comprehensive explanation, the drawings show the utility model exemplary embodiment. However, the utility model can be embodied as a variety of different forms, and should not be understood as limited to the exemplary embodiment described here. Rather, provide these embodiments, so that the utility model is comprehensive and complete, and will convey the scope of the utility model to the ordinary skilled person in the art completely.

[0024] The utility model as a kind of corrosion-resistant and anti-vibration heat-insulating metal hose, can be bent at a certain angle in coastal areas and other environments with corrosion, vibration, installation, conveying high-temperature fluid, provide length, temperature, position and angle compensation for pipeline system.

[0025] Before lining ring and bellows sleeve joint, lining ring is cooled in low-temperature environment and is shrunk and is sleeved in bellows inside;

[0026] Before joint and metal mesh sleeve sleeve joint, joint is expanded in high-temperature environment and is sleeved in the outside of metal mesh sleeve.

[0027] Before lining ring, bellows, gasket, metal mesh sleeve, joint assembly, surface needs to be coated with high-temperature resistant, corrosion-resistant sealant.

[0028] The end face of lining ring, bellows, metal mesh sleeve, joint is fixed by welding.

[0029] Gasket one end distance metal hose welding area is at least 5cm, leave enough welding space of lining ring, bellows, metal mesh sleeve, joint;The other end is embedded in 2-3 corrugations of bellows, ensure that the bending installation and in vibration environment use play the effect of vibration isolation.

Claims

1. A corrosion-resistant and vibration-resistant heat-insulating metal flexible hose, characterized in that, include: Lining rings, bellows, gaskets, metal mesh sleeves, and joints; The corrugated pipe has straight-tube mounting areas at both ends, and the bushing is installed on the inner annular surface of the straight-tube mounting area; The gasket is fitted over the bellows, and the bellows of the gasket follow the shape of the bellows. The straight installation area of ​​the gasket is shorter than the straight installation area of ​​the bellows, and it is pasted on the outer ring surface of the straight installation area. The metal mesh sleeve is fitted over the corrugated pipe and gasket as a whole; the metal mesh sleeve is divided into an installation section and a clearance corrugated section; the joint is fitted over the installation section of the metal mesh sleeve; The bushing, bellows, metal mesh sleeve, and connector are fixed together at their ends.

2. The hose according to claim 1, characterized in that, Also includes: Insulating cotton sleeve that avoids the corrugated section of the metal mesh sleeve.

3. The flexible hose according to claim 1, characterized in that, The inner ring of the outer end of the joint is provided with a step, and the end face of the bushing, the end face of the bellows, the end face of the metal mesh sleeve and the step face are welded together.

4. The hose according to claim 1, characterized in that, The connector has external threads, allowing for direct screw-in fixation to the conveying system without the need for additional connectors, and also facilitates the installation of the insulation cotton sleeve.

5. The hose according to claim 1, characterized in that, Before assembly, the outer ring surface of the bushing, the straight cylinder installation area of ​​the bellows, the straight cylinder installation area of ​​the gasket, the installation section of the metal mesh sleeve, and the inner ring surface of the joint must all be coated with high-temperature and corrosion-resistant sealant.

6. The hose according to claim 5, characterized in that, During assembly, the bushing needs to be cold-shrink and the joint needs to be hot-expanded to facilitate fitting together.

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