CN111288229B - Corrugated expansion joint for laying saline-alkali soil pipelines - Google Patents
Corrugated expansion joint for laying saline-alkali soil pipelinesInfo
- Publication number
- CN111288229B CN111288229B CN202010129053.9A CN202010129053A CN111288229B CN 111288229 B CN111288229 B CN 111288229B CN 202010129053 A CN202010129053 A CN 202010129053A CN 111288229 B CN111288229 B CN 111288229B
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- China
- Prior art keywords
- corrugated
- filling
- fibers
- expansion joint
- saline
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
- F16L11/112—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements embedded in the wall
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L11/00—Hoses, i.e. flexible pipes
- F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
- F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
- F16L11/118—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having arrangements for particular purposes, e.g. electrically conducting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/1616—Devices for covering leaks in pipes or hoses, e.g. hose-menders the material forming the pipe or hose being self-sealing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/02—Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1054—Coatings characterised by the materials used by rubber or plastics the coating being placed outside the pipe
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints Allowing Movement (AREA)
Abstract
本发明公开了一种用于盐碱地管道铺设的波纹膨胀节，属于波纹膨胀节领域，一种用于盐碱地管道铺设的波纹膨胀节，本方案为波纹膨胀节提供多层防护，大幅增加波纹膨胀节的使用寿命，首先位于外侧的波纹胶套作为波纹膨胀节的第一层防护，直接抵挡外界盐碱的侵蚀，而波纹胶套内铺设的强化纤维和毛细纤维则可以有效的较小波纹胶套自身弹性形变儿导致的破裂，其次，填充在填充腔内的填充球为波纹膨胀节的第二层防护，在外层的波纹胶套发生龟裂或断裂时，填充球裸露出来，此时多个填充纤维形成的密闭气室则可以有限缓解盐碱物质的侵蚀，延长波纹膨胀节的使用寿命，而在最后，位于内侧的波纹胶套则成为波纹膨胀节的最后屏障。
The present invention discloses a corrugated expansion joint for laying pipelines in saline-alkali land, which belongs to the field of corrugated expansion joints. The present invention provides a corrugated expansion joint for laying pipelines in saline-alkali land. The present invention provides multi-layer protection for the corrugated expansion joint, which greatly increases the service life of the corrugated expansion joint. First, the corrugated rubber sleeve located on the outside serves as the first layer of protection for the corrugated expansion joint, which directly resists the erosion of external salt and alkali, and the reinforcing fiber and capillary fiber laid in the corrugated rubber sleeve can effectively reduce the rupture caused by the elastic deformation of the smaller corrugated rubber sleeve itself. Secondly, the filling ball filled in the filling cavity is the second layer of protection for the corrugated expansion joint. When the outer corrugated rubber sleeve cracks or breaks, the filling ball is exposed. At this time, the closed air chamber formed by multiple filling fibers can alleviate the erosion of saline and alkali substances to a limited extent, thereby extending the service life of the corrugated expansion joint. Finally, the corrugated rubber sleeve located on the inside becomes the last barrier of the corrugated expansion joint.
Description
Technical Field
The invention relates to the field of corrugated expansion joints, in particular to a corrugated expansion joint for saline-alkali soil pipeline laying.
Background
The expansion function of the corrugated expansion can be realized mainly by the corrugated pipe, the function and the strength of the corrugated expansion joint are designed mainly by the corrugated pipe, and the corrugated pipe can be stretched, compressed or bent by different designs and combinations of the corrugated pipe, so that the corrugated expansion joint in three basic forms of axial, transverse and angular directions is formed.
The corrugated pipe compensator is a flexible element with corrugated pipe as core, and compensates in axial, transverse and angular directions on the pipeline. The axial compensator is designed to reduce self-excitation of the medium. The inner sleeve is not arranged in the product, so that the radial compensation capability is limited to a large extent, and the axial displacement of the pipeline is generally absorbed or compensated only, namely, the transverse displacement compensator mainly absorbs the transverse displacement perpendicular to the axis of the compensator, and the small-pull rod transverse displacement compensator is suitable for absorbing the transverse displacement and can also absorb the combination of axial displacement, angular displacement and any three-direction displacement, namely, the hinge compensator. The compensator is matched with two or three compensators for absorbing transverse deformation in a unidirectional plane, and the universal hinge compensator is matched with two or three compensators for absorbing deformation in a three-dimensional direction.
Saline-alkali soil is a kind of salt accumulation, namely the salt contained in the soil influences the normal growth of crops, alkaline earth and the formation of alkaline soil are mostly related to the accumulation of carbonate in the soil, so that the alkalinity is generally higher, general plants in severe saline-alkali soil areas can hardly survive, the existing means with better treatment effect of the saline-alkali soil mainly comprise a chemical method for neutralizing chemical agents, a physical method for uniformly treating mineral salt after transporting the mineral salt to the soil surface by utilizing the liquid water transpiration effect after irrigation of large water or a biological method for saline-alkali tolerant plants, and the three methods are all required to be introduced with great financial resources and manpower, and corresponding supporting facilities are required to be built for the treatment of the saline-alkali soil, and the traditional corrugated expansion joint has poorer corrosion resistance and can not adapt to the high corrosion area of the saline-alkali soil.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems existing in the prior art, the invention aims to provide the corrugated expansion joint for the pipeline laying of the saline-alkali soil, which can effectively prolong the service life of the corrugated expansion joint in the saline-alkali soil, greatly reduce the input cost of the construction of related infrastructure for the treatment of the saline-alkali soil and increase the treatment efficiency of the saline-alkali soil.
2. Technical proposal
In order to solve the problems, the invention adopts the following technical scheme.
The utility model provides a ripple expansion joint for saline and alkaline land pipe laying, includes the ripple rubber tube, the equal fixedly connected with connecting terminal in both ends of ripple rubber tube, the ripple rubber tube includes the ripple gum cover, the ripple gum cover in-cut has the filling chamber, it has a plurality of filling balls to fill the intracavity, the filling ball includes the filling ball cover, fixedly connected with a plurality of skeleton fibers in the filling ball cover, a plurality of skeleton fibers is crisscross distribution Cheng Wangzhuang structures in the filling ball cover, fixedly connected with a plurality of filling fibers on the fibrous outer wall of skeleton, a plurality of the filling fibers are crisscross entangled each other together, form a plurality of airtight air chambers, the outside fixedly connected with of filling ball cover is entangled the fibre, can realize effectively prolonging the life of ripple expansion joint in saline and alkaline land, reduces the input cost of the relevant infrastructure construction of saline and alkaline land by a wide margin, need not to repair and change the high frequency to the ripple expansion joint, is difficult for influencing the treatment work of normal saline and alkaline land, increases the saline and alkaline land treatment efficiency.
Further, the corrugated rubber sleeve comprises a rubber layer, wherein the rubber layer is made of alkali-resistant wear-resistant rubber, and the corrosion speed of the corrugated rubber sleeve in saline-alkali soil is slowed down.
Furthermore, a plurality of reinforcing fibers are pre-buried in the rubber layer and are mutually parallel, the reinforcing fibers and the corrugated rubber tube are axially in the same direction, and the reinforcing fibers can greatly increase the strength of the rubber layer, so that the rubber layer is not easy to break when the rubber layer axially reciprocates along the corrugated rubber tube.
Further, the outer end fixedly connected with a plurality of capillary fibers of reinforcement fiber, a plurality of capillary fibers are staggered each other, and capillary fibers can increase the toughness of the rubber layer, so that the rubber layer is difficult to crack and fall off due to multiple elastic deformation, and the service life of the rubber layer is further prolonged.
Further, the inner wall fixedly connected with leak protection net of ripple gum cover, and the leak protection net cup joints in the outside of a plurality of filling balls, and leak protection net is used for the pocket to net the filling ball, also does not necessarily lead to filling ball to leak when ripple gum cover surface takes place crackle and damage, is difficult for influencing the corrosion resistance of ripple expansion joint.
Furthermore, the anti-leakage net is formed by weaving a plurality of corrosion-resistant fibers, the corrosion-resistant fibers comprise elastic rubber tubes, and the corrosion-resistant fibers are formed by twisting three elastic rubber tubes, so that the toughness of the corrosion-resistant fibers is greatly improved, and the anti-leakage net is not easy to break.
Further, the elastic rubber tube is internally provided with an elastic cavity, high-pressure nitrogen is filled in the elastic cavity, the elasticity of the elastic rubber tube can be increased by the elastic cavity, the integral anti-impact new energy of the anti-leakage net is increased, and the high-pressure gas filled in the elastic cavity is easy to keep the integral strength of the elastic rubber tube, so that the toughness of the anti-leakage net is not easy to influence.
Further, the elastic rubber tube is internally provided with an elastic cavity, high-pressure nitrogen is filled in the elastic cavity, the elasticity of the elastic rubber tube can be increased by the elastic cavity, the integral anti-impact new energy of the anti-leakage net is increased, and the high-pressure gas filled in the elastic cavity is easy to keep the integral strength of the elastic rubber tube, so that the toughness of the anti-leakage net is not easy to influence.
Further, the air is filled in the filling ball sleeve, so that the air pressure in the filling ball sleeve is slightly higher than the normal atmospheric pressure, the whole shaping of the filling ball is facilitated, the filling ball is not easy to collapse under the action of external force, and the corrosion resistance of the filling ball is not easy to influence.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
According to the scheme, multi-layer protection is provided for the corrugated expansion joint, the service life of the corrugated expansion joint is greatly prolonged, firstly, the corrugated rubber sleeve arranged on the outer side is used as the first-layer protection of the corrugated expansion joint, corrosion of external saline and alkaline is directly resisted, reinforced fibers and capillary fibers paved in the corrugated rubber sleeve can effectively reduce breakage caused by elastic deformation of the corrugated rubber sleeve, secondly, the filling balls filled in the filling cavity are used as the second-layer protection of the corrugated expansion joint, when the outer-layer corrugated rubber sleeve is cracked or broken, the filling balls are exposed, due to the effect of entangled fibers, relative displacement of the filling balls is not easy to occur under the vibration effect caused by the impact of the transportation fluid in the corrugated rubber pipe for years, the uniform seam repair is easy to occur in the filling cavity, at the moment, the airtight air chamber formed by the filling fibers can effectively relieve corrosion of saline and alkaline substances, the service life of the corrugated expansion joint is prolonged, and finally, the corrugated rubber sleeve arranged on the inner side becomes the final barrier of the corrugated expansion joint, the service life of the corrugated expansion joint can be effectively prolonged, the relevant saline and alkaline land is easy to reduce the cost of the basic construction and the saline and alkaline land is not affected, the saline and alkaline land is high in efficiency and alkaline land is not normally repaired, and saline and alkaline land is high.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a front cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of the structure shown at A in FIG. 2;
FIG. 4 is a schematic structural view of a packing ball of the present invention;
FIG. 5 is a partial cross-sectional view of the corrugated sleeve of the present invention;
fig. 6 is a schematic partial cross-sectional view of a leak-proof screen of the present invention.
The reference numerals in the figures illustrate:
1 corrugated rubber tube, 2 connecting terminals, 3 corrugated rubber sleeves, 301 rubber layers, 302 reinforcing fibers, 303 capillary fibers, 4 filling balls, 401 filling ball sleeves, 402 skeleton fibers, 403 filling fibers, 404 entangled fibers, 5 leakage-proof nets, 501 elastic rubber tubes, 502 elastic cavities and 503 hard burrs.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, based on the embodiments of the present invention, and all other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
In the description of the present invention, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and include, for example, "connected to," whether fixedly connected to, detachably connected to, or integrally connected to, mechanically connected to, electrically connected to, directly connected to, indirectly connected to, and in communication with each other via an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1:
Referring to fig. 1-4, a corrugated expansion joint for laying a saline-alkali soil pipeline comprises a corrugated rubber pipe 1, two ends of the corrugated rubber pipe 1 are fixedly connected with connecting terminals 2, the corrugated rubber pipe 1 is communicated with other pipelines through the connecting terminals 2 at two ends, the connecting terminals 2 comprise a corrugated rubber sleeve 3, a filling cavity is cut into the corrugated rubber sleeve 3, a plurality of filling balls 4 are filled in the filling cavity, the filling balls 4 comprise filling ball sleeves 401, a plurality of skeleton fibers 402 are fixedly connected in the filling ball sleeves 401, the skeleton fibers 402 are distributed Cheng Wangzhuang in the filling ball sleeves 401 in a staggered manner, a plurality of filling fibers 403 are fixedly connected to the outer walls of the skeleton fibers 402, the filling fibers 403 are mutually staggered and entangled together to form a plurality of closed air chambers, the outer parts of the filling ball sleeves 401 are fixedly connected with a plurality of entangled fibers 404, the adjacent filling balls 4 are mutually entangled and form relative positioning through the entangled fibers 404, the service life of the corrugated expansion joint in the saline-alkali soil can be effectively prolonged, the investment cost of relevant infrastructure construction of the saline-alkali soil is greatly reduced, the expansion joint is easy to replace and the high-frequency and the saline-alkali soil is not affected, the normal saline-alkali soil is not required to be repaired, and the saline-alkali soil is not easy to be repaired, and the high-alkali soil is not affected.
In particular, the filling ball 4 is a main structure for preventing saline and alkaline corrosion in the scheme, wherein the skeleton fiber 402 is an integral skeleton of the filling ball 4, so that the filling ball 4 is not easy to deform, the filling cavity is easy to be filled, the filling fiber 403 is interwoven with each other to form a closed air chamber, the corrosion speed of saline and alkaline substances can be effectively relieved, the rapid diffusion of the saline and alkaline substances is avoided, and meanwhile, the positions of the filling balls 4 are relatively fixed by entanglement fibers 404 or entanglement fibers 404 and hard burrs 503 of adjacent filling balls 4, so that the large-area lateral movement accumulation phenomenon of the filling balls 4 is not easy to occur, and the protection effect of the filling balls 4 is not easy to be influenced.
Referring to fig. 1 and 5, the corrugated rubber sleeve 3 includes a rubber layer 301, the rubber layer 301 is made of an alkali-resistant wear-resistant rubber, the corrosion speed of the corrugated rubber sleeve 3 in saline-alkali soil is slowed down, a plurality of reinforcing fibers 302 are embedded in the rubber layer 301, the reinforcing fibers 302 are parallel to each other, the reinforcing fibers 302 are in the same axial direction with the corrugated rubber tube 1, the strength of the rubber layer 301 can be greatly increased by the reinforcing fibers 302, the rubber layer 301 is not easy to break when the corrugated rubber tube 1 moves in an axial direction in a reciprocating elastic mode, a plurality of capillary fibers 303 are fixedly connected to the outer ends of the reinforcing fibers 302, the plurality of capillary fibers 303 are staggered with each other, and the toughness of the rubber layer 301 can be increased by the capillary fibers 303, so that the rubber layer 301 is not easy to crack and fall off due to the occurrence of the rubber layer 301 caused by multiple elastic deformations, and the service life of the rubber layer 301 is further prolonged.
Referring to fig. 3 and 6, the inner wall of the corrugated rubber sleeve 3 is fixedly connected with a leakage preventing net 5, the leakage preventing net 5 is sleeved on the outer sides of a plurality of filling balls 4, the leakage preventing net 5 is used for covering the filling balls 4, when cracks and damages occur on the surface of the corrugated rubber sleeve 3, the filling balls 4 are not necessarily caused to leak, the corrosion resistance of the corrugated expansion joint is not easily affected, the leakage preventing net 5 is formed by braiding a plurality of corrosion-resistant fibers, the corrosion-resistant fibers comprise elastic rubber pipes 501, the corrosion-resistant fibers are formed by stranding three elastic rubber pipes 501, the toughness of the corrosion-resistant fibers is greatly increased, the leakage preventing net 5 is not easily broken, the elastic rubber pipes 501 are internally provided with high-pressure nitrogen gas in the elastic cavities 502, the elasticity of the elastic rubber pipes 501 can be increased, the whole impact resistance of the leakage preventing net 5 is increased, the high-pressure gas filled in the elastic cavities 502 is easy to keep the whole strength of the elastic rubber pipes 501, the toughness of the leakage preventing net 5 is not easily affected, the surface of the elastic rubber pipes 501 is fixedly connected with a plurality of hard burrs 503, the hard burrs are easily distributed by the hard burrs are easily intertwined, the adjacent hard burrs 503 are not easily entangled with the adjacent fibers, and the soft balls 4 are not entangled, and the soft balls are not normally entangled with the other fibers, and the soft balls 404 are not normally filled with the soft balls, and the soft balls are not entangled, and the soft balls are filled with the soft balls are 4, and the soft balls are not entangled, and have the soft balls, and the soft balls are easy and have the soft balls, and have the soft balls.
The filling ball sleeve 401 is filled with air, so that the air pressure in the filling ball sleeve 401 is slightly higher than the normal air pressure, the whole shaping of the filling ball 4 is facilitated, the filling ball 4 is not easy to collapse under the action of external force, and the corrosion prevention effect of the filling ball 4 is not easy to influence.
According to the scheme, multilayer protection is provided for the corrugated expansion joint, the service life of the corrugated expansion joint is greatly prolonged, firstly, the corrugated rubber sleeve 3 positioned on the outer side is used as the first layer protection of the corrugated expansion joint, corrosion of external saline and alkaline is directly resisted, the reinforced fibers 302 and the capillary fibers 303 paved in the corrugated rubber sleeve 3 can effectively reduce rupture caused by elastic deformation of the corrugated rubber sleeve 3, secondly, the filling balls 4 filled in the filling cavity are used as the second layer protection of the corrugated expansion joint, when the corrugated rubber sleeve 3 on the outer layer is cracked or broken, the filling balls 4 are exposed, due to the action of the entanglement fibers 404, relative displacement of the filling balls 4 is not easy to occur under the vibration effect caused by perennial impact of transport fluid in the corrugated rubber tube 1, at the moment, the airtight air chamber formed by the filling fibers 403 can effectively relieve corrosion of saline and alkaline substances, the service life of the corrugated expansion joint is prolonged, and finally, the corrugated rubber sleeve 3 positioned on the inner side becomes the final barrier of the corrugated expansion joint, the service life of the corrugated expansion joint can be effectively prolonged, the service life of the corrugated expansion joint is greatly prolonged, the saline and alkaline land is not required to be replaced, the relevant saline and alkaline land is not required to be replaced, and alkaline land is not normally and has high, and alkaline land is high in the cost and is not required to be repaired.
The above description is only of the preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto, any person skilled in the art should be able to make equivalent substitutions or modifications according to the technical solution and the modified concept thereof within the scope of the present invention.
Claims (1)
1. A corrugated expansion joint for laying saline-alkali soil pipelines comprises a corrugated rubber pipe (1), wherein two ends of the corrugated rubber pipe (1) are fixedly connected with connecting terminals (2), the corrugated rubber pipe is characterized in that the corrugated rubber pipe (1) comprises a corrugated rubber sleeve (3), a filling cavity is drilled in the corrugated rubber sleeve (3), a plurality of filling balls (4) are filled in the filling cavity, the filling balls (4) comprise filling ball sleeves (401), a plurality of skeleton fibers (402) are fixedly connected in the filling ball sleeves (401), the skeleton fibers (402) are distributed in the filling ball sleeves (401) in a staggered mode to form a net-shaped structure, a plurality of filling fibers (403) are fixedly connected to the outer wall of the skeleton fibers (402), a plurality of filling fibers (403) are mutually staggered and entangled to form a plurality of closed air chambers, a plurality of filling ball sleeves (401) are fixedly connected with a plurality of entangled fibers (404) outside the corrugated rubber sleeve (3) comprises a rubber layer (301), the rubber layer (301) is made of alkali-resistant wear-resistant rubber, the plurality of skeleton fibers (402) are fixedly connected in the filling ball sleeves (401) to form a staggered mode, the reinforcing fibers (302) are connected with the reinforcing fibers (302) in the axial direction, the reinforcing fibers (302) are connected with the reinforcing fibers (302) in the same direction, and the capillary reinforcing fibers (302) are connected with the reinforcing fibers (302) in parallel to one another, the corrugated rubber sleeve comprises a plurality of capillary fibers (303), wherein the capillary fibers (303) are arranged in a staggered mode, a leakage-proof net (5) is fixedly connected to the inner wall of the corrugated rubber sleeve (3), the leakage-proof net (5) is sleeved on the outer sides of a plurality of filling balls (4), the leakage-proof net (5) is formed by weaving a plurality of corrosion-resistant fibers, each corrosion-resistant fiber comprises an elastic rubber tube (501), each corrosion-resistant fiber is formed by twisting three elastic rubber tubes (501), a plurality of hard burrs (503) are fixedly connected to the surface of each elastic rubber tube (501), the hard burrs (503) are distributed in staggered joints, the hard burrs (503) are interwoven and entangled with entangled fibers (404) of the adjacent filling balls (4), an elastic cavity (502) is cut in each elastic rubber tube (501), high-pressure nitrogen is filled in each elastic cavity (502), and air is filled in each filling ball sleeve (401), so that the internal air pressure of the filling ball sleeve (401) is slightly higher than the normal atmospheric pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010129053.9A CN111288229B (en) | 2020-02-28 | 2020-02-28 | Corrugated expansion joint for laying saline-alkali soil pipelines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010129053.9A CN111288229B (en) | 2020-02-28 | 2020-02-28 | Corrugated expansion joint for laying saline-alkali soil pipelines |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111288229A CN111288229A (en) | 2020-06-16 |
| CN111288229B true CN111288229B (en) | 2025-09-12 |
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| CN202010129053.9A Active CN111288229B (en) | 2020-02-28 | 2020-02-28 | Corrugated expansion joint for laying saline-alkali soil pipelines |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113137531B (en) * | 2021-02-09 | 2022-12-09 | 福建澳工塑胶电器有限公司 | Self-leakage-repairing corrugated pipe for low-temperature environment |
| CN113484962B (en) * | 2021-06-02 | 2024-01-05 | 夏志全 | Sensing optical fiber for submarine communication for long-distance communication |
| CN113551286B (en) * | 2021-06-07 | 2022-07-19 | 阿克苏阳光热力有限公司 | Pre-buried pipe for heat supply pipe network with bend protection architecture |
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| CN207178961U (en) * | 2017-07-24 | 2018-04-03 | 青岛威尔驰液压科技有限公司 | One kind enhancing rubber bellows |
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| CN207178961U (en) * | 2017-07-24 | 2018-04-03 | 青岛威尔驰液压科技有限公司 | One kind enhancing rubber bellows |
| CN208793828U (en) * | 2018-08-28 | 2019-04-26 | 李连科 | A kind of high intensity municipal works drainage pipeline |
| CN209458510U (en) * | 2018-12-29 | 2019-10-01 | 江苏奥光波纹管有限公司 | A kind of high tenacity Pressuretight sylphon bellows |
| CN212929047U (en) * | 2020-02-28 | 2021-04-09 | 江苏亚星波纹管有限公司 | Corrugated expansion joint for saline-alkali soil pipeline laying |
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