High-pressure buffering metal hose

Abstract

The utility model provides a high-pressure buffering metal hose, and belongs to the technical field of metal hoses. The high-pressure buffering metal hose comprises an inner-layer corrugated pipe, a composite reinforcing layer, a fixing ring and a flange plate, the inner-layer corrugated pipe is sleeved with the composite reinforcing layer, the fixing ring is fixed between the inner-layer corrugated pipe and the flange plate, the end of the composite reinforcing layer is fixed to the outer wall of the fixing ring and the outer wall of the flange plate at the same time, and the flange plate is fixed to the outer wall of the composite reinforcing layer. The portion, close to the end, of the inner-layer corrugated pipe is trapezoidal corrugations with high wave crests and small wave pitches, the middle of the inner-layer corrugated pipe is a main pressure-bearing section which is sine corrugations with relatively low wave crests and large wave pitches, the composite reinforcing layer is formed by weaving aramid fibers and high-strength steel wires, the composite reinforcing layer is attached to the inner-layer corrugated pipe, and the outer-layer corrugated pipe is made of stainless steel. The high-pressure buffering metal hose has the characteristics of high pressure resistance, high temperature resistance, corrosion resistance and better puncture resistance, and ensures the safety during gas path transmission.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of metal hoses, in particular to a high-pressure buffering metal hose. BACKGROUND

[0002] The metal hose is an important component in the connecting pipeline of modern industrial equipment. The metal hose is used as a wire and cable protection pipe for automatic instrument signals, an industrial fluid pipeline transmission and a civil shower hose, and the specifications range from 3 mm to 150 mm. The small-bore metal hose (inner diameter 3 mm-25 mm) is mainly used for the protection of sensing lines of precision optical rulers and industrial sensor lines. The metal hose has the characteristics of flexible bending and difficult deformation of the pipe wall, and has good protection effect on the contents. The gas pipeline transmission in the industry also often uses the metal hose. However, the metal hose cannot meet the high-pressure resistance, high-temperature resistance, corrosion resistance and good anti-puncture protection effect during the gas pipeline transmission, and therefore, there is an urgent need for a high-pressure buffering metal hose to solve the above problems. CONTENT OF THE UTILITY MODEL

[0003] In order to make up for the above shortcomings, the application provides a high-pressure buffering metal hose, which aims to improve the problem that the metal hose cannot meet the high-pressure resistance, high-temperature resistance, corrosion resistance and good anti-puncture protection effect during the gas pipeline transmission.

[0004] The application is implemented in the following manner:

[0005] The application provides a high-pressure buffering metal hose, which comprises an inner layer bellows, a composite reinforcing layer, a fixing ring and a flange plate, the composite reinforcing layer is sleeved on the inner layer bellows;

[0006] The fixing ring is fixed between the inner layer bellows and the flange plate, the end part of the composite reinforcing layer is fixed on the outer wall of the fixing ring and the flange plate at the same time, the inner layer bellows is a trapezoidal bellows with high wave crest and small wave distance near the end part, and the middle part of the inner layer bellows is a main pressure bearing section with low wave crest and large wave distance, which is a sinusoidal bellows.

[0007] In an embodiment of the application, the inner layer bellows is a nickel-based alloy bellows.

[0008] In an embodiment of the application, the composite reinforcing layer is woven by aramid fiber and high-strength steel wire, and is attached to the inner layer bellows.

[0009] In an embodiment of the application, the thickness of the inner layer bellows is 2-4 mm.

[0010] In an embodiment of the present application, the thickness of the composite reinforcing layer is greater than the thickness of the inner layer bellows.

[0011] In an embodiment of the present application, the compressive strength of the inner layer bellows and the composite reinforcing layer is greater than 45MPA.

[0012] The application has the advantages that: the high-pressure buffering metal hose provided by the application has the following advantages: the inner layer bellows is a nickel-based alloy bellows, the nickel-based alloy has excellent corrosion resistance, high-temperature stability and high strength, the high-strength nickel-based alloy bellows has high puncture resistance, and the crystal structure of the high-strength nickel-based alloy bellows can effectively resist the impact and erosion of the fluid in a high-pressure environment, compared with a traditional stainless steel inner layer material, the high-strength nickel-based alloy bellows can withstand higher pressure strength, greatly reduces the risk of inner wall rupture caused by internal pressure, the composite reinforcing layer is woven by aramid fiber and high-strength steel wire, the aramid fiber is known for its ultra-high strength-to-weight ratio and excellent tensile strength; the high-strength steel wire provides good compression and bending resistance; the combination of the two enhances the overall strength of the inner layer bellows, making it less likely to deform under high pressure; on the other hand, the flexibility of the aramid fiber can effectively buffer the instantaneous impact force caused by pressure fluctuations, absorb energy and reduce damage to the overall structure of the metal hose, the inner layer bellows near the end part is a trapezoidal bellows with high wave peaks and small wave distances, this structure can provide stronger compression support in the high-pressure concentration area, effectively dispersing the pressure and avoiding joint rupture caused by stress concentration; the middle part of the inner layer bellows is a sine bellows with relatively low wave peaks and large wave distances, which ensures that the hose has good flexibility and can be bent flexibly in complex pipeline layout, and can also buffer pressure fluctuations to some extent, the compressive strength of the metal hose is greater than 45MPA, and the high-pressure buffering metal hose has high-pressure resistance, high-temperature resistance, corrosion resistance and good puncture resistance, ensuring the safety of gas transmission. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor.

[0014] Figure 1 is a perspective structural schematic diagram of a high-pressure buffering metal hose provided by the embodiments of the present application;

[0015] Figure 2 is an exploded view of a high-pressure buffering metal hose provided by the embodiments of the present application;

[0016] Figure 3 A cross-sectional view of a high-pressure metal hose buffer provided by the embodiment of the present application;

[0017] Figure 4 A perspective structural schematic view of an inner corrugated tube provided by the embodiment of the present application;

[0018] Figure 5 A relationship diagram between the inner corrugated tube and the flange provided by the embodiment of the present application.

[0019] In the figure: 110-inner corrugated tube; 120-composite reinforcing layer; 130-fixing ring; 140-flange. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme of the embodiment of the present application will be described clearly and completely below in combination with the drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiment in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] EMBODIMENT

[0022] Please refer to Figures 1-5 The present application provides a technical scheme: a high-pressure metal hose buffer, comprising an inner corrugated tube 110, a composite reinforcing layer 120, a fixing ring 130 and a flange 140, the composite reinforcing layer 120 is sleeved on the inner corrugated tube 110, the inner corrugated tube 110 is a nickel-based alloy corrugated tube, the nickel-based alloy has excellent corrosion resistance and high-temperature stability, and under high-pressure environment, the crystal structure thereof can effectively resist the impact and erosion of fluid, and compared with a traditional stainless steel inner layer material, it can withstand higher pressure intensity, greatly reducing the risk of inner wall rupture caused by internal pressure, the composite reinforcing layer 120 is woven by aramid fiber and high-strength steel wire, the composite reinforcing layer 120 is attached to the inner corrugated tube 110, the aramid fiber is known for its ultra-high strength-to-weight ratio and has excellent tensile strength; the high-strength steel wire provides good compression and bending resistance; the combination of the two enhances the overall strength of the inner corrugated tube 110, making it less likely to deform under high pressure; on the other hand, the flexibility of aramid fiber can effectively buffer the instantaneous impact force caused by pressure fluctuations, absorb energy and reduce damage to the overall structure of the hose, the thickness of the inner corrugated tube 110 is 2-4 mm, the thickness of the composite reinforcing layer 120 is greater than the thickness of the inner corrugated tube 110, and the compression resistance of the inner corrugated tube 110 and the composite reinforcing layer 120 is greater than 45 MPa, i.e. it can withstand a large pressure;

[0023] The fixed ring 130 is fixed between the inner layer corrugated pipe 110 and the flange plate 140, the end of the composite reinforcing layer 120 is fixed on the outer wall of the fixed ring 130 and the flange plate 140 at the same time, the inner layer corrugated pipe 110 is trapezoidal corrugation with high wave crest and small wave distance near the end, and the middle of the inner layer corrugated pipe 110 is a main pressure bearing section with low wave crest and large wave distance.

[0024] Specifically, the working principle of the buffer high-pressure metal hose is as follows: in use, the inner layer corrugated pipe 110 is a nickel-based alloy corrugated pipe. The nickel-based alloy has excellent corrosion resistance, high temperature stability and high strength. The high-strength nickel-based alloy corrugated pipe has high puncture resistance. In a high-pressure environment, its crystal structure can effectively resist the impact and erosion of the fluid. Compared with the traditional stainless steel inner layer material, it can withstand higher pressure strength, greatly reducing the risk of inner wall rupture caused by internal pressure. The composite reinforcing layer 120 is woven by aramid fiber and high-strength steel wire. Aramid fiber is known for its ultra-high strength-to-weight ratio and excellent tensile strength. High-strength steel wire provides good compression and bending resistance. The combination of the two enhances the overall strength of the inner layer corrugated pipe 110, making it less likely to deform under high pressure. On the other hand, the flexibility of aramid fiber can effectively buffer the instantaneous impact force caused by pressure fluctuations, absorb energy, and reduce damage to the overall structure of the metal hose. The inner layer corrugated pipe 110 near the end is trapezoidal corrugation with high wave crest and small wave distance. This structure can provide stronger compression support in the high-pressure concentration area, effectively dispersing the pressure and preventing joint rupture caused by stress concentration. The middle of the inner layer corrugated pipe 110 is a main pressure bearing section with low wave crest and large wave distance, ensuring that the hose has good flexibility and can be easily bent in complex piping arrangements. At the same time, it can also buffer pressure fluctuations to some extent. The metal hose has a compression resistance greater than 45MPA. The buffer high-pressure metal hose has high-pressure resistance, high-temperature resistance, corrosion resistance and good puncture resistance, ensuring the safety of gas transmission.

[0025] The above is only an embodiment of the present application and is not intended to limit the protection scope of the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A cushioned high pressure metal hose characterized by, The inner layer bellows (110), the composite reinforcing layer (120), the fixing ring (130) and the flange plate (140), the composite reinforcing layer (120) is sleeved on the inner layer bellows (110); The fixing ring (130) is fixed between the inner layer bellows (110) and the flange plate (140), the end of the composite reinforcing layer (120) is fixed on the outer wall of the fixing ring (130) and the flange plate (140), the inner layer bellows (110) is trapezoidal corrugation with high wave crest and small wave distance near the end, the middle of the inner layer bellows (110) is the main pressure bearing section, which is sine corrugation with low wave crest and large wave distance.

2. A cushioned high pressure metal hose according to claim 1, wherein The inner layer bellows (110) is a nickel-based alloy bellows.

3. A cushioned high pressure metal hose according to claim 1, wherein The composite reinforcing layer (120) is woven by aramid fiber and high-strength steel wire, and the composite reinforcing layer (120) is attached to the inner layer bellows (110).

4. The cushioned high pressure metal hose of claim 1, wherein, The thickness of the inner layer bellows (110) is 2-4mm.

5. The cushioned high pressure metal hose of claim 1, wherein, The thickness of the composite reinforcing layer (120) is greater than the thickness of the inner layer bellows (110).

6. A cushioned high pressure metal hose according to claim 1, wherein The compression resistance of the inner layer bellows (110) and the composite reinforcing layer (120) is greater than 45MPA.

Images