CN211550804U

CN211550804U - High-pressure swing hose

Info

Publication number: CN211550804U
Application number: CN201922062652.9U
Authority: CN
Inventors: 舒杨; 顾卫华; 张华京; 陈崇昆
Original assignee: Aerosun Corp
Current assignee: Aerosun Corp
Priority date: 2019-11-26
Filing date: 2019-11-26
Publication date: 2020-09-22
Anticipated expiration: 2029-11-26

Abstract

The utility model relates to a high-pressure swing hose, which comprises a corrugated pipe, connecting pipes positioned at the two ends of the corrugated pipe and a connecting ring for connecting the corrugated pipe and the connecting pipes, wherein a steel wire mesh sleeve is sleeved outside the corrugated pipe; the corrugated pipe is a multilayer corrugated pipe which is arranged in a stacked mode, and the end part of the corrugated pipe, the end part of the steel wire mesh sleeve and the end part of the connecting pipe are inserted into the connecting ring and are welded and fixed with the connecting ring; the outer valley intussuseption of ripple of bellows has the equalizer ring, equalizer ring system is as an organic whole and follows the ripple of bellows extends, the equalizer ring with the outer trough of ripple of bellows closely laminates, the equalizer ring with form an contained angle clearance between the outer trough top both sides wall of ripple of bellows. The utility model discloses on the basis of having guaranteed the resistance to pressure, guaranteed the flexibility of hose, even metal collapsible tube bore grow, the performance also can obtain guaranteeing.

Description

High-pressure swing hose

Technical Field

The utility model relates to a high pressure sways hose belongs to high-pressure pipeline system technical field.

Background

The metal hose is an important component of a pipeline system, is widely used, and mainly has the functions of conveying gas and liquid media, reducing vibration and noise, compensating displacement and the like.

Metal hoses are generally composed of a bellows, a wire mesh, a ring, and a nipple. According to practice, when the pressure of a medium in the metal hose is relatively high, the flexible section part of the metal hose becomes relatively hard, the vibration reduction, noise reduction and displacement compensation effects of the metal hose are affected, the effect is larger when the pressure is higher, sometimes the metal hose can even lose the effect, and the situation is more obvious for a large-caliber high-pressure metal hose.

Under the trend that the metal hose is developed towards high pressure and high flexibility at present, the pressure-resistant structure design and the flexibility design of the hose are particularly important. Taking a liquid oxymethane engine as an example, in order to realize the working state of a pump backswing engine, meet the requirements of free movement in a swing angle, reliable structure in service life and the like, a high-pressure swing hose with a large caliber is needed to bear and absorb high-temperature and high-pressure fuel gas discharged by a turbine pump. However, the existing high-pressure metal hose generally achieves the use requirement of high pressure resistance by increasing the wall thickness, the number of layers and the steel wire mesh sleeve parameters of the corrugated pipe, but on the premise that the wall thickness, the wave pitch and other parameters are fixed, the larger the caliber of the metal hose is, the lower the pressure resistance is, and the poorer the flexibility is, so that the flexibility compensation function of the metal hose may be lost or partially lost, and thus the flexibility of the product is greatly reduced.

Disclosure of Invention

The utility model aims to provide a: the high-pressure swing hose can still keep the flexible compensation function on the premise of ensuring the pressure resistance.

In order to solve the technical problem, the utility model provides a technical scheme is: a high-pressure swing hose comprises a corrugated pipe, connecting pipes positioned at two ends of the corrugated pipe and a connecting ring for connecting the corrugated pipe and the connecting pipes, wherein a steel wire mesh sleeve is sleeved on the outer side of the corrugated pipe; the corrugated pipe is a multilayer corrugated pipe which is arranged in a stacked mode, one end of the corrugated pipe, one end of the steel wire mesh sleeve and one end of the connecting pipe are inserted into one connecting ring and are fixedly welded with the connecting ring, and the other end of the corrugated pipe, the other end of the steel wire mesh sleeve and the other end of the connecting pipe are inserted into the other connecting ring and are fixedly welded with the connecting ring; the corrugated pipe is characterized in that the corrugated outer wave valley inner filling of the corrugated pipe is provided with a grading ring, the grading ring is manufactured into a whole and is extended along the corrugations of the corrugated pipe, the grading ring is tightly matched with the corrugated outer wave valley of the corrugated pipe, and two top side faces of the corrugated outer wave valley of the corrugated pipe form an included angle gap. Preferably, the included angle between the equalizing ring and the top side face of the outer corrugation trough is 8-12 degrees.

The utility model discloses use the multilayer bellows, on the basis of having guaranteed resistance to pressure, guaranteed the flexibility of hose, even metal collapsible tube bore grow, the performance also can obtain guaranteeing. In addition, an integrated variable cross-section equalizing ring is arranged in a trough outside the corrugated pipe, and the stress of a circumferential film of the corrugated pipe caused by internal pressure is reduced through the armoring effect of the integrated variable cross-section equalizing ring, so that the strength and the pressure resistance of the flexible section are improved, the pressure resistance is guaranteed to meet the requirements, and meanwhile, through the design of the integrated variable cross-section equalizing ring, certain angle gaps are formed between end faces on two sides of the equalizing ring and end faces on two sides of the corrugated pipe, and the angle compensation effect of the swinging hose is realized.

Compare with current high-pressure hose, the utility model discloses obviously improved pressure resistance, also had fine flexibility simultaneously, had apparent advantage, still had the ability of better compensation pipeline displacement under the condition of transportation high pressure medium.

The further improvement of the technical scheme is as follows: the steel wire net cover is a double-layer steel wire net cover, and the pressure resistance of the double-layer steel wire net cover is further improved on the original basis. Preferably, the double-layer steel wire mesh is formed by alternately laminating and weaving a plurality of stainless steel wires, which is the prior art and is not described in detail.

The technical scheme is further improved as follows: the bottom of the cross section of the grading ring is arc-shaped. The bottom circular arc design of equalizer ring closely cooperates with the bottom of the outer trough of ripple of bellows, has optimized the stress distribution condition of equalizer ring with the bellows junction, has improved the intensity and the resistance to pressure of flexible section simultaneously.

Drawings

The present invention will be further described with reference to the accompanying drawings.

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

Fig. 2 is an enlarged view of a portion a in fig. 1.

Reference numerals: the device comprises a grading ring 1, a steel wire mesh sleeve 2, a connecting ring 3, a connecting pipe 4 and a corrugated pipe 5.

Detailed Description

Examples

The high-pressure swing hose of this embodiment, as shown in fig. 1, includes a corrugated tube 5, a connection tube 4 located at two ends of the corrugated tube 5, and a connection ring 3 connecting the corrugated tube 5 and the connection tube 4, wherein a steel wire mesh sleeve 2 is sleeved outside the corrugated tube 5.

In the embodiment, the corrugated pipe 5 is a double-layer corrugated pipe which is arranged in a stacked mode and is made of two layers of stainless steel seamless pipe blanks through sleeving and forming; when the caliber of the swinging hose is increased or the pressure bearing capacity is increased, more layers of corrugated pipes can be correspondingly adopted. In practice, one end of the corrugated tube 5, one end of the wire net cover 2 and one end of the adapter tube 4 are inserted into and welded to one of the connection rings 3, and the other end of the corrugated tube 5, the other end of the wire net cover 2 and the other end of the adapter tube 4 are inserted into and welded to the other of the connection rings 3.

The corrugated outer valleys of the corrugated pipe 5 are filled with grading rings 1, and the grading rings 1 are integrally manufactured and extend along the corrugations of the corrugated pipe 5. As shown in fig. 1 and 2, the equalizing ring 1 is preferably tightly attached to the outer corrugation valleys of the corrugated tube 5, and the bottom of the cross section of the equalizing ring is preferably arc-shaped. The bottom circular arc design of equalizer ring closely cooperates with the bottom of the outer trough of ripple of bellows, has optimized the stress distribution condition of equalizer ring with the bellows junction, has improved the intensity and the resistance to pressure of flexible section simultaneously. A gap with a certain included angle is reserved between the equalizing ring 1 and two top side walls of the corrugated outer wave troughs of the corrugated pipe 5, and the included angle between the equalizing ring 1 and the top side surfaces of the corrugated outer wave troughs of the corrugated pipe 5 is preferably 8-12 degrees, for example, 10 degrees as shown in fig. 2.

After the integrated variable cross-section equalizing ring is arranged at the outer wave valley of the corrugated pipe, the circumferential film stress of the corrugated pipe caused by the internal pressure is reduced through the armoring effect of the equalizing ring, and the strength and the pressure resistance of the flexible section are improved; when the pressure resistance is guaranteed to meet the requirements, the integrated variable cross-section grading ring is designed, so that certain angle gaps are formed between the end faces of the two sides of the grading ring and the end faces of the two sides of the outer wave trough of the corrugation, and the swinging hose is favorable for achieving an angle compensation effect.

Compared with the existing high-pressure hose, the high-pressure hose has the advantages that the pressure resistance is obviously improved, and meanwhile, the high-pressure hose has good flexibility and is remarkable in advantage. In order to verify whether the pressure resistance and angle compensation requirements are met or not, relevant test verification work is carried out after the high-pressure swing hose is manufactured, the test work comprises tests of water pressure, airtightness, blasting, swing fatigue and the like, and the test proves that the relevant requirements are completely met.

The embodiment can be further modified as follows: the steel wire net cover 2 is a double-layer steel wire net cover which is formed by alternately and repeatedly weaving a plurality of stainless steel wires. The two layers of steel wire net sleeves further improve the pressure resistance on the original basis.

The present invention is not limited to the specific technical solutions of the above embodiments, and other embodiments are possible besides the above embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. A high-pressure swing hose comprises a corrugated pipe, connecting pipes positioned at two ends of the corrugated pipe and a connecting ring for connecting the corrugated pipe and the connecting pipes, wherein a steel wire mesh sleeve is sleeved on the outer side of the corrugated pipe; the method is characterized in that: the corrugated pipe is a multilayer corrugated pipe which is arranged in a stacked mode, one end of the corrugated pipe, one end of the steel wire mesh sleeve and one end of the connecting pipe are inserted into one connecting ring and are fixedly welded with the connecting ring, and the other end of the corrugated pipe, the other end of the steel wire mesh sleeve and the other end of the connecting pipe are inserted into the other connecting ring and are fixedly welded with the connecting ring; the corrugated pipe is characterized in that the corrugated outer wave valley inner filling of the corrugated pipe is provided with a grading ring, the grading ring is manufactured into a whole and is extended along the corrugations of the corrugated pipe, the grading ring is tightly matched with the corrugated outer wave valley of the corrugated pipe, and two top side faces of the corrugated outer wave valley of the corrugated pipe form an included angle gap.

2. The high pressure swing hose of claim 1, wherein: the steel wire net cover is a double-layer steel wire net cover.

3. The high pressure swing hose of claim 2, wherein: the double-layer steel wire net sleeve is formed by alternately and alternately weaving a plurality of stainless steel wires in a laminated mode.

4. The high pressure swing hose of claim 1, wherein: and an included angle between the equalizing ring and the top side face of the corrugated outer wave trough of the corrugated pipe is 8-12 degrees.

5. The high pressure swing hose of claim 1, wherein: the bottom of the cross section of the grading ring is arc-shaped.