Stainless steel corrugated hose for fuel gas conveying

Abstract

The utility model relates to the field of fuel gas conveying, in particular to a stainless steel corrugated hose for fuel gas conveying, which comprises a corrugated pipe body, an end clamping pipe is fixedly mounted at one end of the corrugated pipe body, an inner hose layer is attached to the inside of the corrugated pipe body, an anti-corrosion coating is attached to the inside of the inner hose layer, and the anti-corrosion coating is coated on the outside of the corrugated pipe body. A fixing bolt penetrates through the outer portion of the end clamping pipe. Due to the arrangement of the corrugated pipe body, the end clamping pipes, the inner hose layer, the anti-corrosion coating, the fixing bolts, the connecting ring plate and the outer hose sleeve, when the stainless steel corrugated hose is used for fuel gas conveying work, the toughness of the stainless steel corrugated hose is enhanced through the inner hose layer and the anti-corrosion coating in the corrugated pipe body; under the condition that the shape of the stainless steel corrugated hose is not affected, the corrosion resistance of the interior to fuel gas is increased for long-term bearing fuel gas conveying, and the probability that the stainless steel corrugated hose cracks from the interior is reduced.

Description

Technical Field

[0001] The utility model relates to the field of gas transportation, in particular to a stainless steel corrugated hose for gas transportation. Background Art

[0002] Gas transmission is a key energy transportation and distribution process. It plays an important role in many industries. Gas transmission is the process of transporting natural gas, liquefied petroleum gas and other types of combustible gases from the place of production to the end user. This transportation is usually carried out through a pipeline network, and safety, reliability and efficiency factors need to be considered. Stainless steel corrugated hoses are needed to carry the transportation of natural gas. Stainless steel corrugated hoses are a kind of flexible industrial metal material with good temperature and pressure resistance. They are classified by use: mainly including metal bellows, corrugated expansion joints, corrugated heat exchange tubes, diaphragm boxes, etc. Metal bellows are made of thin-walled stainless steel welded pipes through corrugated processing. They are flexible and have good temperature and pressure resistance. They are suitable for the transportation of various industrial gases such as air, steam, water, oil, medicines and other fluid media. They play an important role in the reciprocating motion of the pipe system, the absorption of thermal expansion system, vibration absorption and the center adjustment of the piping.

[0003] After searching, the announcement number CN213479466U is a stainless steel corrugated hose for gas transportation, which specifically discloses a stainless steel corrugated hose for gas transportation, which includes a connector, the left and right sides of the inner wall of the connector are fixedly connected with a first limiting ring, the left and right sides of the connector are threaded with a conical cap, the left and right ends of the connector are connected with a stainless steel corrugated hose, the upper ends of the stainless steel corrugated hoses on the left and right sides are fixedly connected with a mounting head, the outer surfaces of the left and right ends of the connector are sleeved with a ring, the inner wall of each of the rings is fixedly connected with a first sealing gasket, and the ring is provided with a bolt and fixedly connected to the connector through the bolt. This device has the characteristics of convenient operation and adjustment, replacement and use, and convenient installation and carrying, and good airtightness.

[0004] The above patent only realizes the characteristics of convenient operation and adjustment, replacement and use through the connecting head, the first limit ring, the conical cap, the stainless steel corrugated hose and the circular ring, and at the same time, it is easy to install and carry and has a good airtight seal. However, during the use of the stainless steel corrugated hose for gas transportation, if the stainless steel corrugated hose itself has low toughness and is directly exposed to the outside world without any protective function, when the stainless steel corrugated hose is damaged by external factors, the gas transportation work cannot be fully completed, and the stainless steel corrugated hose will rupture, causing a dangerous situation of gas leakage. This is not only inconvenient for gas transportation work, but also the replacement of the ruptured stainless steel corrugated hose also increases the gas transportation cost.

[0005] Therefore, it is necessary to invent a stainless steel corrugated hose for gas transportation to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a stainless steel corrugated hose for gas transportation. The toughness of the stainless steel corrugated hose itself is enhanced by a corrugated hose body, an end clamp, an inner hose layer, an anti-corrosion coating, a fixing bolt, a connecting ring plate and an outer hose sleeve. Without affecting the shape of the stainless steel corrugated hose itself, the internal corrosion resistance to gas is increased for long-term gas transportation, and an external protection function is added to the stainless steel corrugated hose. When the stainless steel corrugated hose is directly exposed to the outside for use, the rupture caused by external factors can be reduced. In this way, the service life of the entire device is enhanced under coordinated use, the probability of rupture is reduced, and dangerous situations such as gas leakage caused by rupture are avoided. To a certain extent, the cost of gas transportation is also reduced, so as to solve the problem that the stainless steel corrugated hose for gas transportation in the prior art has low toughness during use, and is directly exposed to the outside without any protection function. When the stainless steel corrugated hose is damaged by external factors, the gas transportation work cannot be fully completed, and the stainless steel corrugated hose will be broken, causing a dangerous situation of gas leakage. This is not only inconvenient for gas transportation work, but also the replacement of the broken stainless steel corrugated hose also increases the cost of gas transportation.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stainless steel corrugated hose for gas transportation, comprising a corrugated tube body, an end clamp tube is fixedly installed at one end of the corrugated tube body, an inner hose layer is bonded to the inside of the corrugated tube body, an anti-corrosion coating is attached to the inside of the inner hose layer, a fixing bolt passes through the outside of the end clamp tube, a connecting ring plate is movably connected to one end of the fixing bolt, an outer hose sleeve is fixedly installed on one side of the connecting ring plate, an external embedding groove is opened on the outside of the outer hose sleeve, a fixed pipe clamp is arranged inside the external embedding groove, and a positioning bolt passes through one side of the fixed pipe clamp.

[0008] Preferably, a connecting pipe head is fixedly installed on the other end of the end clamp tube, and one end of the connecting pipe head is fixedly connected to an external hexagonal thread.

[0009] Preferably, an internal thread groove is provided inside the external hexagonal screw mouth, an embedded groove is provided inside the internal thread groove, and an internal thread sealing ring is fixedly installed inside the embedded groove.

[0010] Preferably, the anti-corrosion coating is tightly fitted to the inner hose layer, and the material of the anti-corrosion coating is epoxy resin.

[0011] Preferably, the outer hose sleeve is threadedly connected to the end clamp pipe, and the fixing bolts are distributed at equal intervals on the connecting ring plate.

[0012] Preferably, the fixed pipe clamp is movably connected to the outer hose sleeve, and the positioning bolts are symmetrically arranged with respect to the central axis of the fixed pipe clamp.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] 1. Through the arrangement of the bellows body, the end clamp, the inner hose layer, the anti-corrosion coating, the fixing bolts, the connecting ring plate and the outer hose sleeve, when the stainless steel corrugated hose is used in the gas transmission work, the inner hose layer and the anti-corrosion coating inside the bellows body strengthen the toughness of the stainless steel corrugated hose itself, and increase the internal corrosion resistance to the gas for long-term gas transmission without affecting the shape of the stainless steel corrugated hose itself, and reduce the probability of the stainless steel corrugated hose from the inside to break. At the same time, according to the use requirements of the stainless steel corrugated hose, the outer hose sleeve can be set at the two ends and the middle position that does not affect the use through the fixing bolts, so as to increase the external protection function of the stainless steel corrugated hose. When the stainless steel corrugated hose is directly exposed to the outside world, it can also reduce the rupture caused by external factors. In this way, the overall service life of the device is enhanced, the probability of rupture is reduced, and dangerous situations such as gas leakage caused by rupture are avoided, and the gas transmission cost is reduced to a certain extent;

[0015] 2. By connecting the pipe head, external hexagonal thread, internal thread groove, external hose sleeve, external embedded groove, fixed pipe clamp and positioning bolts, when the stainless steel corrugated hose is used in gas transportation work, the fixed pipe clamp can be installed in the external embedded groove of the outer hose sleeve according to the current use requirements, so as to facilitate the installation of the stainless steel corrugated hose in a convenient position for gas transportation. This also reduces the probability of external factors knocking against the stainless steel corrugated hose. At the same time, the external hexagonal thread and internal thread groove at both ends of the corrugated tube body also facilitate the assembly and disassembly of the stainless steel corrugated hose in gas transportation, which reduces the difficulty of use and improves the overall scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2This is a schematic diagram of the external hexagonal screw structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the inner thread seal ring of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the anti-corrosion coating of the utility model;

[0021] Figure 5 This is a schematic diagram of the fixed pipe clamp structure of the utility model.

[0022] Description of reference numerals:

[0023] 1. Bellows body; 2. End clamp; 3. Connecting pipe head; 4. External hexagonal thread; 5. Internal thread groove; 6. Internal embedded groove; 7. Internal thread sealing ring; 8. Internal hose layer; 9. Anti-corrosion coating; 10. Fixing bolt; 11. Connecting ring plate; 12. External hose sleeve; 13. External embedded groove; 14. Fixing pipe clamp; 15. Positioning bolt. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-5 A stainless steel corrugated hose for gas transportation shown in the figure comprises a corrugated tube body 1, one end of which is fixedly installed with an end clamp tube 2, an inner hose layer 8 is laminated inside the corrugated tube body 1, an anti-corrosion coating 9 is pasted inside the inner hose layer 8, a fixing bolt 10 penetrates the outside of the end clamp tube 2, one end of the fixing bolt 10 is movably connected with a connecting ring plate 11, an outer hose sleeve 12 is fixedly installed on one side of the connecting ring plate 11, an outer embedding groove 13 is provided on the outside of the outer hose sleeve 12, a fixing pipe clamp 14 is arranged inside the outer embedding groove 13, and a positioning bolt 15 penetrates one side of the fixing pipe clamp 14, the inner hose layer 8 and the anti-corrosion coating 9 inside the corrugated tube body 1 enhance the toughness of the stainless steel corrugated hose itself, and increase the internal corrosion resistance to gas for long-term gas transportation without affecting the shape of the stainless steel corrugated hose itself, thereby reducing the probability of the stainless steel corrugated hose rupturing from the inside.

[0026] like Figure 1 , Figure 2 and Figure 3As shown, the other end of the end clamp tube 2 is fixedly installed with a connecting pipe head 3, and one end of the connecting pipe head 3 is fixedly connected with an external hexagonal thread 4. The corrugated tube body 1 is convenient for assembling and disassembling the stainless steel corrugated hose during gas transportation through the external hexagonal thread 4 and the internal thread groove 5 at both ends, which reduces the difficulty of use and improves the overall application scope. The inside of the external hexagonal thread 4 is provided with an internal thread groove 5, and the inside of the internal thread groove 5 is provided with an embedded groove 6. The inside of the embedded groove 6 is fixedly installed with an internal thread sealing ring 7. The internal thread sealing ring 7 strengthens the sealing performance of the stainless steel corrugated hose when connected with other gas pipelines, reducing the possibility of gas leakage.

[0027] like Figure 1 , Figure 4 and Figure 5 As shown, the anti-corrosion coating 9 fits tightly with the inner hose layer 8. The material of the anti-corrosion coating 9 is epoxy resin. The anti-corrosion coating 9 increases the internal corrosion resistance to gas for long-term bearing gas transportation. The outer hose sleeve 12 is threadedly connected to the end clamp tube 2. The fixing bolts 10 are evenly spaced on the connecting ring plate 11. The outer hose sleeve 12 is sleeved at both ends and the middle position without affecting the use through the fixing bolts 10, which increases the external protection function of the stainless steel corrugated hose. The fixed pipe clamp 14 is movably connected to the outer hose sleeve 12, and the positioning bolts 15 are symmetrically arranged with the central axis of the fixed pipe clamp 14. According to the current use requirements, the fixed pipe clamp 14 can be installed in the outer embedded groove 13 of the outer hose sleeve 12, so as to facilitate the fixing and installation of the stainless steel corrugated hose in a convenient position for gas transportation. This also reduces the probability of external factors hitting the stainless steel corrugated hose.

[0028] The practical working principle of the present invention is as follows: first, according to the current demand for gas transportation and use, a corrugated tube body 1 of appropriate length is selected, and the external hexagonal screws 4 and internal threaded grooves 5 at both ends are used to conveniently connect and install the corrugated tube body 1 with other gas pipelines, and then the internal threaded sealing ring 7 arranged inside the internal groove 6 strengthens the sealing performance of the stainless steel corrugated hose when connected with other gas pipelines, and reduces the possibility of gas leakage, and then the outer hose sleeve 12 is sleeved on the two ends and the middle position that does not affect the use through the fixing bolts 10, so as to increase the external protection function for the stainless steel corrugated hose and reduce the rupture caused by external factors when the stainless steel corrugated hose is directly exposed to the outside world for use, and then the fixed pipe clamp 14 is installed in the external embedded groove 13 of the outer hose sleeve 12, and the stainless steel corrugated hose is conveniently fixed by the positioning bolts 15 It is installed in a position that is convenient for gas transportation, which also reduces the probability of external factors hitting the stainless steel corrugated hose. After the stainless steel corrugated hose is installed, it can carry out gas transportation work normally. During the gas transportation process, the inner hose layer 8 and the anti-corrosion coating 9 inside the bellows body 1 enhance the toughness of the stainless steel corrugated hose itself. Without affecting the shape of the stainless steel corrugated hose itself, it increases the internal corrosion resistance to gas for long-term gas transportation, and reduces the probability of the stainless steel corrugated hose breaking from the inside. Finally, after completing the installation and use of all stainless steel corrugated hoses for gas transportation according to the above operations, the stainless steel corrugated hose is maintained daily. The material of the anti-corrosion coating 9 is: epoxy resin. In this way, the use process of the stainless steel corrugated hose for gas transportation is completed.

[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A stainless steel corrugated hose for gas transmission, comprising a corrugated hose body (1), characterized in that: An end clamp tube (2) is fixedly mounted on one end of the bellows body (1), an inner hose layer (8) is bonded to the interior of the bellows body (1), an anti-corrosion coating (9) is bonded to the interior of the inner hose layer (8), a fixing bolt (10) is passed through the exterior of the end clamp tube (2), one end of the fixing bolt (10) is movably connected to a connecting ring plate (11), an outer hose sleeve (12) is fixedly mounted on one side of the connecting ring plate (11), an outer embedding groove (13) is provided on the exterior of the outer hose sleeve (12), a fixing pipe clamp (14) is arranged inside the outer embedding groove (13), and a positioning bolt (15) is passed through one side of the fixing pipe clamp (14).

2. The stainless steel corrugated hose for gas transportation according to claim 1, characterized in that: The other end of the end clamp tube (2) is fixedly mounted with a connecting pipe head (3), and one end of the connecting pipe head (3) is fixedly connected with an external hexagonal screw thread (4).

3. The stainless steel corrugated hose for gas transportation according to claim 2, characterized in that: An internal thread groove (5) is provided inside the external hexagonal screw thread (4), an internal embedded groove (6) is provided inside the internal thread groove (5), and an internal thread seal ring (7) is fixedly installed inside the internal embedded groove (6).

4. The stainless steel corrugated hose for gas transportation according to claim 1, characterized in that: The anti-corrosion coating (9) is tightly fitted to the inner hose layer (8), and the material of the anti-corrosion coating (9) is epoxy resin.

5. The stainless steel corrugated hose for gas transportation according to claim 1, characterized in that: The outer hose sleeve (12) is threadedly connected to the end clamp tube (2), and the fixing bolts (10) are distributed at equal intervals on the connecting ring plate (11).

6. The stainless steel corrugated hose for gas transportation according to claim 1, characterized in that: The fixed pipe clamp (14) is movably connected to the outer hose sleeve (12), and the positioning bolts (15) are symmetrically arranged with respect to the central axis of the fixed pipe clamp (14).

Images