CN210372389U

CN210372389U - Composite metal corrugated hose

Info

Publication number: CN210372389U
Application number: CN201921086968.5U
Authority: CN
Inventors: 汪贤文; 周起能
Original assignee: Wuhu Taihe Pipe Industry Co ltd
Current assignee: Wuhu Taihe Pipe Industry Co ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-04-21
Anticipated expiration: 2029-07-11

Abstract

The utility model discloses a composite metal corrugated hose belongs to the bellows field. The utility model discloses use the bellows as the substrate, the cladding has teflon layer and compound net glue film from inside to outside in proper order on the bellows outer wall, and this compound net glue film is including the canvas stratum reticulare and the silica gel layer that interweave each other, and the canvas stratum reticulare is woven by the canvas and is formed, and the bellows is stainless steel, and the tube wall thickness of bellows is no longer than 0.2 mm. The utility model overcomes among the prior art ripple hose performance imperfect, the safety in utilization still remains to be improved not enough, can effectively strengthen hose strength, improves its tensile resistance to compression and wear-resisting corrosion resistance performance etc., fully ensures its safety in application, prevents to take place phenomenons such as pipeline leakage damage.

Description

Composite metal corrugated hose

Technical Field

The utility model relates to a bellows technical field, more specifically say, relate to a composite metal corrugated hose.

Background

Corrugated metal hose is a high-quality flexible pipeline in modern industry pipeline, present traditional corrugated metal hose is mainly by the bellows, the net cover, connect and constitute, the inner tube is the stainless steel corrugated hose that has spiral or annular wave form, the outer net cover of bellows is woven by stainless steel wire or steel band and is formed, or adopt rubber class cladding material to carry out the cladding, corrugated metal hose's operational environment is generally all in the open air, the metal net cover that exposes outside often can be corroded and pierces through, lead to inside body bellows also to be corroded and worn, cause the leakage easily, or the cladding appears damaged, lead to pipeline wholeness can not be good, take place the potential safety hazard. How to effectively improve the overall performance of the corrugated hose and ensure the use safety of the corrugated hose is a research direction pursued in the industry all the time.

Through search, a great number of patents have been published on the research of corrugated hoses, such as chinese patent application No.: 2012201143282, filing date: 3, 21 days 2012, the name of invention creation is: a high pressure resistant flexible hose, the application structurally consisting of: teflon tube, stainless steel woven mesh, dampproofing spool, stainless steel corrugated pipe constitutes, it is stainless steel corrugated pipe to set up outmost, and set up between stainless steel woven mesh and stainless steel corrugated pipe be have moisture absorption dampproofing and corrosion-resistant dampproofing spool, when crooked high pressure resistant hose, the stainless steel corrugated pipe that has even bending performance can bend the Teflon tube of inlayer uniformly, make the department of buckling form a circular arc all tangent with both sides body, and then homogenized the deflection, broken for preventing that high pressure resistant hose atress is inhomogeneous and created the condition.

Also as in chinese patent application No.: 2013204200737, filing date: 7, month and 16 in 2013, the name of the invention is: the application structurally comprises a stainless steel metal hose and a canvas hose, wherein the stainless steel metal hose and the canvas hose are connected in a sleeving manner, the stainless steel metal hose is of a tubular structure formed by a metal corrugated pipe and a woven metal net sleeve, and the canvas hose is of a hose-shaped structure made of canvas materials. Again, as with chinese patent application No.: 2015207279970, filing date: the invention is named as: the utility model provides a ripple metal collapsible tube that surface was equipped with pyrocondensation pipe, this application includes the hose, cup joints the metal mesh cover outside the hose, the flange of welding at the hose both ends, metal mesh cover overcoat is equipped with the pyrocondensation pipe, increases the pyrocondensation pipe of one deck macromolecular material on metal mesh cover surface, and this pyrocondensation pipe can laminate completely on the metal mesh cover after carrying out vacuum pyrocondensation technology, avoids the metal mesh cover directly to expose in the air, has anticorrosion, anti ultraviolet's effect. The applications all relate to the technical improvement to the corrugated hose, but the practical use performance of the corrugated hose is different, and particularly, the tensile, compression, abrasion, corrosion and other performances of the hose still have a larger lifting space.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome among the prior art corrugated tube performance imperfect, the safety in utilization still remains to be improved not enough, provides a composite metal corrugated tube, can effectively strengthen hose strength, improves its tensile resistance to compression and wear-resisting corrosion resistance performance etc. fully ensures its safety in application, prevents to take place phenomenons such as pipeline leakage damage.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a composite metal corrugated hose to the bellows is the substrate, and the cladding is provided with compound net glue film on the bellows outer wall, and this compound net glue film is woven by canvas including the canvas stratum reticulare and the silica gel layer that interweave each other, the canvas stratum reticulare.

Furthermore, a Teflon layer is further coated on the outer wall of the corrugated pipe, and the composite net rubber layer is arranged outside the Teflon layer.

Furthermore, the silica gel layer is uniformly coated on the outer surface of the Teflon layer.

Further, the canvas mesh layer is attached to the peak surface of the Teflon layer.

Furthermore, the sensing optical fiber film is coated and arranged on the outer side of the corrugated pipe.

Furthermore, the corrugated pipe is made of stainless steel, and the thickness of the pipe wall of the corrugated pipe is not more than 0.2 mm.

Further, the corrugated pipe has a corrugation density of 2.8 to 3 mm.

Furthermore, the outer side of the corrugated pipe is electroplated with a Teflon layer, and the thickness of the Teflon layer is 10-12 um.

Further, the thickness of the composite mesh glue layer is 25-40 um.

Furthermore, the tensile resistance of the canvas used for the canvas mesh layer is not less than 1200N.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a composite metal corrugated hose to the bellows is the substrate, and the cladding has teflon layer and compound net glue film in proper order on the bellows outer wall, and this compound net glue film adopts metal material and other multiple materials complex to form including the canvas stratum reticulare and the silica gel layer that interweave each other, has outstanding high pressure resistant, anti external force performance, and has the wear-resisting performance such as anticorrosive of metal bellows concurrently, and hose performance obtains obviously promoting.

(2) The utility model discloses a composite metal corrugated hose, the wall thickness of bellows is not more than 0.2mm, and the ripple density of bellows is 2.8-3mm, has effectively reduced the thickness and the ripple density of substrate bellows, makes the pipe wall thinner, and the material is softer, has effectively strengthened the pliability of bellows, and has kept the withstand voltage wear-resisting high temperature resistant performance of stainless steel etc. the effective bending and the nimble application of the bellows of being convenient for of the flexible reinforcing of pipe wall, and it is more convenient to use.

(3) The utility model discloses a composite metal corrugated hose, the tensile resistance of the canvas that the canvas stratum reticulare used is not less than 1200N, and intensity is higher, utilizes the canvas silk thread to directly weave the net in the Teflon layer outside, forms high-efficient powerful protection wire netting to cooperate silica gel to bulge the silica gel layer that forms, can not only effectively strengthen hose strength, the netted canvas of weaving more is favorable to improving the hose surface and feels, makes its touch soft and hard suit feel better.

(4) The utility model discloses a composite metal corrugated hose electroplates the teflon layer on the bellows outer wall, further strengthens resistant high low temperature, wear-resisting, the corrosion resistance etc. of hose, and teflon has good mechanical toughness, can effectively resist high temperature low temperature environment, shows the inertia to most of chemicals and solvent, can effectively resist strong acid strong alkali, water and various organic solvent, and teflon has physiological inertia, does not have any poison effect to the human body.

(5) The utility model discloses a composite metal corrugated hose, silica gel passes the interstice of canvas stratum reticulare and swells and form the silica gel layer, the canvas net makes canvas stratum reticulare and silica gel layer interweave each other and form whole mixed layer as the carrier that bears of silica gel, the silica gel that uses has excellent temperature resistant characteristic, weatherability and physiological inertia, and it is nontoxic harmless to the human body, safe in utilization environmental protection, the network structure of cooperation canvas stratum reticulare has further strengthened the anti external force of hose, high pressure resistant, it is corrosion-resistant, a great deal of performance such as wear-resisting, make the hose wholeness can obtain great promotion.

(6) The utility model discloses a composite metal corrugated hose has effectively strengthened the pliability of hose through the control to bellows thickness and ripple density, can make hose length unrestricted during the use, simultaneously through the compound of multilayer material, makes the intensity of hose effectively ensured, can directly set up threaded connection through the hose is inside during the hose concatenation, has effectively ensured hose connection's leakproofness, prevents to appear the leakage problem, and actual performance obviously promotes.

Drawings

Fig. 1 is a schematic sectional view of a composite metal corrugated hose according to the present invention.

The reference numerals in the schematic drawings illustrate:

100. a bellows; 200. a layer of Teflon; 300. and (4) a composite mesh glue layer.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element 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 "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

The composite metal corrugated hose is formed by compounding a metal material and other multiple materials, has outstanding performances such as high pressure resistance, high temperature resistance and external force resistance, has the performances such as wear resistance and corrosion resistance of a metal corrugated pipe, does not need to be additionally coated with a plastic layer material, and obviously improves the service performance.

As shown in fig. 1, the composite metal corrugated hose of the present embodiment includes a corrugated pipe 100 made of stainless steel, the corrugated pipe 100 is used as a substrate, a composite mesh adhesive layer is coated on an outer wall of the corrugated pipe 100, the composite mesh adhesive layer 300 includes a canvas mesh layer and a silica gel layer, which are interwoven, the canvas mesh layer is woven by canvas, a teflon layer 200 is further coated on an outer wall of the corrugated pipe 100, and the composite mesh adhesive layer 300 is disposed outside the teflon layer 200. Specifically, the silica gel layer is uniformly coated on the outer surface of the teflon layer 200, that is, the silica gel layer is uniformly coated on the outer peaks and valleys of the teflon layer 200, and the canvas mesh layer is attached on the peaks and valleys of the teflon layer 200.

Specifically, during actual processing, a teflon layer 200 is uniformly electroplated on the outer wall of the corrugated pipe 100, then liquid silica gel is coated on the outer side of the teflon layer 200, the liquid silica gel is coated on the wave crest and wave trough sections of the teflon layer 200, then a canvas net layer is formed by weaving canvas silk threads on the outer side of the teflon layer 200, the canvas net layer is attached to the outer wall of the wave crest protruding from the teflon layer 200, then high-temperature curing treatment is performed on the surface of the pipeline, the liquid silica gel is cured and bulges out of the mesh gaps of the canvas net layer to form the composite mesh glue layer 300, and the composite mesh glue layer 300 is integrally attached to the wave crest surface of the teflon layer 200.

In this embodiment, the teflon layer 200 and the composite mesh adhesive layer 300 are sequentially compounded on the outer side of the base material corrugated pipe 100, the composite mesh adhesive layer 300 is formed by interweaving a canvas mesh layer and a silica gel layer, and the woven canvas mesh is used as an attachment bearing carrier of the silica gel to enable the canvas mesh layer and the silica gel layer to be interwoven to form an integral mixed layer, so that the attachment of the canvas mesh layer and the hose is effectively enhanced, and the strength of the hose is fully ensured.

It should be noted that in this embodiment, the structure and the composite process of the pipeline are strictly controlled, the wall thickness H of the corrugated pipe 100 is not more than 0.2mm, the corrugation density on the corrugated pipe 100 is 2.8-3mm, and the other composite material layers are controlled as follows: the thickness H1 of the Teflon layer 200 is 10-12um, the thickness H2 of the composite mesh glue layer 300 is 25-40um (namely, the thickness of the composite mesh glue layer 150 covering the top wave crest surface of the Teflon layer 140), and meanwhile, the thickness H1 of the Teflon layer 200 and the thickness H of the corrugated pipe 100 are arranged between

Wherein k is (0.7-1.2); the thickness H2 of the composite mesh glue layer 300 is equal to the thickness H of the corrugated pipe 100

Wherein a is (0.5-2); the tensile resistance of the canvas used by the canvas net layer is not less than 1200N, and the performance of the corrugated hose is greatly improved by controlling the accurate size of the substrate layer and the composite layer.

Specifically, in this embodiment, the wall thickness H of the bellows 100 is 0.2mm, the corrugation density of the bellows 100 is 2.8mm, the thickness H1 of the electroplated teflon layer 200 is 10um, the thickness H2 of the composite mesh adhesive layer 300 is 27um, and the thickness of the electroplated teflon layer 200 is 0.2mm

Thickness of the composite mesh adhesive layer 300

The embodiment makes the pipe wall thinner and denser by mutually matching the pipe wall thickness and the corrugation density of the corrugated pipe 100, and the verification proves that the hardness of the base material can be effectively reduced, the flexibility of the material can be enhanced, and the inherent performances of pressure resistance, wear resistance, high temperature resistance and the like of the stainless steel can be kept. The flexibility of the pipe wall is enhanced, so that the corrugated pipe 100 can be effectively bent and flexibly applied, the problem that the conventional corrugated pipe cannot be overlong due to the limitation of flexibility is solved, on the basis, the high and low temperature resistance, the wear resistance, the corrosion resistance and the like of the hose are further enhanced by electroplating the Teflon layer 200, the Teflon has good mechanical toughness, can effectively resist high-temperature and low-temperature environments, has inertia to most of chemical drugs and solvents, can effectively resist strong acid, strong base, water and various organic solvents, has physiological inertia, and has no toxic action on human bodies. The stretching resistance of the canvas used by the canvas net layer used in the embodiment is not less than 1200N, the strength is high, the canvas silk thread is utilized to directly weave a net outside the Teflon layer 200 to form a high-efficiency strong protection net cover, and the silica gel layer interwoven inside and outside is formed by matching with the silica gel bulge, so that the strength of the hose can be effectively enhanced, the woven mesh canvas is more beneficial to improving the surface hand feeling of the hose, the touch softness and hardness are suitable for better hand feeling, and the operation experience is improved. Silica gel used in this embodiment has excellent temperature resistant characteristic, weatherability and physiological inertia, and is nontoxic and harmless to the human body, uses safe environmental protection, and the network structure of cooperation canvas stratum reticulare has further strengthened the anti external force of hose, high pressure resistant, corrosion-resistant, a great deal of performance such as wear-resisting, makes toughness strength etc. of hose promote by a wide margin, and whole performance obviously improves, and all materials of the hose of this embodiment are all safe environmental protection nontoxic and harmless.

The composite metal corrugated hose of the embodiment is produced by machining to manufacture the corrugated pipe 100, heat treatment is carried out on the corrugated pipe 100, then the Teflon layer 200 is electroplated on the surface of the corrugated pipe 100, high-temperature curing treatment is carried out on Teflon, middle air tightness detection is carried out on the hose, the air tightness of the corrugated pipe 100 is ensured, a layer of liquid silica gel is sprayed on the surface of the corrugated pipe 100 after the detection is qualified, then a canvas net is woven on the surface of the corrugated pipe 100, the high-temperature curing treatment is carried out on the surface of the corrugated pipe 100, the silica gel bulges out of the canvas net to form a silica gel layer, and the roller level treatment is carried out on the surface of the silica.

The conventional corrugated pipe in the industry at present has various forms such as a metal pipe, a rubber pipe or a multilayer pipe, wherein the metal pipe has high strength but poor flexibility, the length of the pipeline is greatly limited when the corrugated pipe is used, the corrugated pipe is formed by splicing multiple sections of pipelines when the pipeline is arranged in a long distance, the construction is troublesome, the guarantee of the sealing performance is also a great problem when the pipeline is spliced, the conventional splicing mode is formed by welding multiple pipelines, welding slag can be formed in the pipeline, and the pipeline conveying quality is easily influenced in long-term use; although the rubber pipe has certain flexibility and is convenient to bend, the performances of pressure resistance, wear resistance, corrosion resistance and the like can not adapt to complex use environments, a hose structure formed by compounding various metal corrugated pipes and the rubber pipe is also arranged in the industry, but the rubber pipe is only used as an outer protective pipe sleeve, the flexibility limitation of the metal corrugated pipes is difficult to fundamentally improve, the length of the pipeline is still greatly limited, the multiple sections of rubber pipes are difficult to adopt mechanical structures for connection during splicing, the rubber pipes are fastened in a clamp form, the problem of leakage at the connection point is easy to occur, and various problems and risks are caused to production practice. This embodiment then has effectively strengthened the pliability of hose through the control to bellows 100 thickness and ripple density, can make hose length unrestricted during the use, simultaneously pass through the accurate complex of multilayer material according to substrate self characteristic, make the hose when keeping good pliability, its intensity is effectively ensured, also can directly through setting up threaded connection in the hose inside when needing the concatenation between the multistage pipeline, make screw between the different pipelines can, not only easy and simple to handle is nimble, and hose connection's leakproofness has effectively been ensured, prevent the leakage problem, in-service performance obviously promotes. Practice proves that the composite metal corrugated hose can repeatedly swing for fifteen thousand times at an amplitude of 45 degrees under the condition of one kilogram of vertical weight, so that leakage is avoided, and the use performance is safe and reliable.

Example 2

The composite metal corrugated hose of this embodiment, basically the same as embodiment 1, the difference is that, bellows 100 outside still the cladding is provided with sensing optical fiber membrane in this embodiment, not only can effectively detect whether damaged in the pipeline to can transmit detected signal, the guarantee is to the real-time supervision of pipeline quality and transport state, has further ensured the security performance of pipeline use.

In this embodiment, the wall thickness H of the stainless steel corrugated tube 100 is 0.2mm, and the corrugation density of the corrugated tube 100 is 3 mm; the thickness h1 of the Teflon layer 200 is 11um, the thickness h2 of the composite mesh glue layer 300 is 34um, and the thickness of the electroplated Teflon layer 200

Thickness of the composite mesh adhesive layer 300

Example 3

The composite metal corrugated hose of this embodiment is substantially the same as embodiment 1, except that in this embodiment, the wall thickness H of the stainless steel corrugated tube 100 is 0.1mm, and the corrugation density of the corrugated tube 100 is 2.9 mm; the thickness h1 of the Teflon layer 200 is 12um, the thickness h2 of the composite mesh glue layer 300 is 25um, and the thickness of the electroplated Teflon layer 200

Thickness of the composite mesh adhesive layer 300

Example 4

The composite metal corrugated hose of this embodiment is basically the same as embodiment 1, except that in this embodiment, the wall thickness H of the stainless steel corrugated tube 100 is 0.1mm, and the corrugation density of the corrugated tube 100 is 3 mm; the thickness h1 of the Teflon layer 200 is 10um, the thickness h2 of the composite mesh glue layer 300 is 28um, and the thickness of the electroplated Teflon layer 200

Thickness of the composite mesh adhesive layer 300

Example 5

The composite metal corrugated hose of this embodiment is substantially the same as embodiment 1, except that in this embodiment, the wall thickness H of the stainless steel corrugated tube 100 is 0.2mm, and the corrugation density of the corrugated tube 100 is 3 mm; the thickness h1 of the Teflon layer 200 is 12um, the thickness h2 of the composite mesh glue layer 300 is 40um, and the thickness of the electroplated Teflon layer 200

Thickness of the composite mesh adhesive layer 300

Example 6

The composite metal corrugated hose of this embodiment is basically the same as embodiment 1, except that in this embodiment, the wall thickness H of the stainless steel corrugated tube 100 is 0.1mm, and the corrugation density of the corrugated tube 100 is 3 mm; the thickness h1 of the Teflon layer 200 is 11um, the thickness h2 of the composite mesh glue layer 300 is 30um, and the thickness of the electroplated Teflon layer 200

Thickness of the composite mesh adhesive layer 300

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A composite metal corrugated hose characterized by: the corrugated pipe (100) is used as a base material, the outer wall of the corrugated pipe (100) is coated with a composite mesh rubber layer (300), the composite mesh rubber layer (300) comprises a canvas mesh layer and a silica gel layer which are interwoven, and the canvas mesh layer is formed by weaving canvas.

2. A composite metal corrugated hose according to claim 1, wherein: the outer wall of the corrugated pipe (100) is further coated with a Teflon layer (200), and the composite mesh adhesive layer (300) is arranged outside the Teflon layer (200).

3. A composite metal corrugated hose according to claim 2, wherein: the silica gel layer is uniformly coated on the outer surface of the Teflon layer (200).

4. A composite metal corrugated hose according to claim 2, wherein: the canvas mesh layer is attached to the wave crest surface of the Teflon layer (200).

5. A composite metal corrugated hose according to claim 3, wherein: the outer side of the corrugated pipe (100) is coated with a sensing optical fiber film.

6. A composite metal corrugated hose according to claim 1, wherein: the corrugated pipe (100) is made of stainless steel, and the thickness of the pipe wall of the corrugated pipe (100) is not more than 0.2 mm.

7. A composite metal corrugated hose according to claim 1, wherein: the corrugated density of the corrugated pipe (100) is 2.8-3 mm.

8. A composite metal corrugated hose according to claim 1, wherein: the outer side of the corrugated pipe (100) is electroplated with a Teflon layer (200), and the thickness of the Teflon layer (200) is 10-12 um.

9. A composite metal corrugated hose according to claim 1, wherein: the thickness of the composite mesh glue layer (300) is 25-40 um.

10. A composite metal corrugated hose according to any one of claims 1 to 9, wherein: the tensile resistance of canvas used for the canvas net layer is not less than 1200N.