CN217519467U - Corrosion-resistant metal expansion joint - Google Patents
Corrosion-resistant metal expansion joint Download PDFInfo
- Publication number
- CN217519467U CN217519467U CN202220278869.2U CN202220278869U CN217519467U CN 217519467 U CN217519467 U CN 217519467U CN 202220278869 U CN202220278869 U CN 202220278869U CN 217519467 U CN217519467 U CN 217519467U
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- CN
- China
- Prior art keywords
- pipe
- rubber
- corrugated pipe
- corrugated
- expansion joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000002184 metal Substances 0.000 title claims abstract description 27
- 238000005260 corrosion Methods 0.000 title claims abstract description 26
- 230000007797 corrosion Effects 0.000 title claims abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 18
- 244000226021 Anacardium occidentale Species 0.000 claims abstract description 6
- 235000020226 cashew nut Nutrition 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000005336 cracking Methods 0.000 abstract description 4
- 239000011248 coating agent Substances 0.000 abstract description 3
- 238000000576 coating method Methods 0.000 abstract description 3
- 230000003116 impacting effect Effects 0.000 abstract description 3
- 239000000306 component Substances 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model discloses an anti-corrosion metal expansion joint, which comprises an end pipe, a middle pipe and a corrugated pipe, and relates to the technical field of expansion joints, wherein a reinforcing rib net is arranged to be clung to the inner wall of the corrugated pipe, thereby avoiding the corrugated pipe from deforming or cracking after thermal expansion, improving the overall strength of the corrugated pipe, when the air pressure in the corrugated pipe impacts the inner wall of the corrugated pipe, the rubber pipe is arranged at the inner side of the corrugated pipe in an annular array shape, the air pressure impacts the surface of the rubber pipe, avoiding the air pressure from directly impacting the inner wall of the corrugated pipe, the inner cavity of the rubber pipe is a hollow tubular structure, a buffer air bag is filled in the rubber pipe, the buffer resilience can dissipate energy when the rubber pipe is impacted, and an anticorrosive coating coated on the surface of the rubber pipe is cashew nut shell oil, and has the characteristics of high impact strength, stable friction coefficient and good corrosion resistance, so that the rubber pipe can protect the inner walls of the rubber pipe and the corrugated pipe, thereby prolonging the service life of the corrugated pipe.
Description
Technical Field
The utility model relates to an expansion joint technical field, especially a metal expansion joint.
Background
The utility model discloses a metal expansion joint is widely used to enterprise's pipe-line systems such as steel mill, power plant, chemical industry, because the medium temperature of transmission is higher, not only makes it produce thermal expansion and warp easily, and contains corrosive substance, and is serious to the corruption of metal expansion joint, especially metal expansion joint's core component metal bellows often causes because of corrosion seepage or atmospheric pressure impact to damage and shut down, the blowing out change, this life that not only makes metal expansion joint is low, also will influence holistic working process simultaneously.
SUMMERY OF THE UTILITY MODEL
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.
The present invention has been made in view of the above and/or other problems with a corrosion resistant metal expansion joint.
Therefore, the problem to be solved by the present invention is how to provide an anti-corrosion metal expansion joint.
In order to solve the technical problem, the utility model provides a following technical scheme: the anti-corrosion metal expansion joint comprises end pipes and a middle pipe, wherein the end pipes are arranged at two ends of the middle pipe, and the end pipes and the middle pipe are connected with each other through corrugated pipes;
the end pipe comprises an end plate welded on the outer wall of the end pipe, the pull rod penetrates through the middle of the end plate, conical washers are sleeved at two ends of the pull rod, and bolts are further connected to one sides of the conical washers.
Based on the technical characteristics: the end pipe, the middle pipe and the corrugated pipe are of an integrated structure, and the pull rod on the outer side of the end pipe can bear the internal pressure thrust.
As a preferred scheme of the corrosion-resistant metal expansion joint of the present invention, wherein: the corrugated pipe comprises a reinforcing rib net welded on the inner wall of the corrugated pipe, a fastener is installed on one side of the reinforcing rib net, and the buffer piece penetrates through the inner side of the fastener.
Based on the technical characteristics: when the bolster laminating was in one side of strengthening the muscle net, the fastener can carry out spacing fixed to the bolster, prevents that the bolster from droing.
As a preferred scheme of the corrosion-resistant metal expansion joint of the present invention, wherein: the bolster includes the rubber tube that runs through the fastener inboard, and the rubber tube laminating is in one side of strengthening the muscle net, and scribbles the anticorrosive coating on the outer wall of rubber tube to the buffering gasbag is still installed to the inner chamber of rubber tube.
Based on the technical characteristics: the reinforcing rib net can be tightly attached to the inner wall of the corrugated pipe, so that the corrugated pipe is prevented from deforming or cracking after thermal expansion, and the overall strength of the corrugated pipe is improved.
As a preferred embodiment of the corrosion-resistant metal expansion joint of the present invention, wherein: the rubber tube and the reinforcing rib net are attached to the inner wall of the corrugated tube in a wave shape.
Based on the technical characteristics: can be closely attached to the corrugated pipe along with the bending angle of the corrugated pipe.
As a preferred embodiment of the corrosion-resistant metal expansion joint of the present invention, wherein: the rubber tube is of a hollow tubular structure, and is distributed in an annular array in the inner cavity of the corrugated tube.
Based on the technical characteristics: when the inside atmospheric pressure of bellows strikes on its inner wall, because the rubber tube is the inboard of annular array form range at the bellows, atmospheric pressure will strike the surface of rubber tube, avoids on the inner wall of atmospheric pressure direct striking bellows, and the inner chamber of rubber tube is hollow tubular structure, will cushion the gasbag and fill in the inside of rubber tube, can cushion when the rubber tube receives to kick-back and carry out the energy dissipation.
As a preferred scheme of the corrosion-resistant metal expansion joint of the present invention, wherein: the anticorrosive layer is a component made of cashew nut shell oil.
Based on the technical characteristics: the corrugated pipe has the characteristics of high impact strength, stable friction coefficient and good corrosion resistance, and can protect the inner walls of the rubber pipe and the corrugated pipe, so that the service life of the corrugated pipe is prolonged.
The utility model discloses beneficial effect does: the arranged reinforcing rib net can be tightly attached to the inner wall of the corrugated pipe, thereby avoiding the deformation or cracking of the corrugated pipe after the corrugated pipe generates thermal expansion, improving the integral strength of the corrugated pipe, one side of the reinforcing rib net is fixed with the rubber tube through a fastener, when the air pressure in the corrugated tube impacts the inner wall of the corrugated tube, because the rubber tubes are arranged on the inner side of the corrugated tube in an annular array, the air pressure impacts the surface of the rubber tubes to avoid the air pressure from directly impacting the inner wall of the corrugated tube, the inner cavity of the rubber tubes is of a hollow tubular structure, the buffer air bag is filled in the rubber tubes, and the rubber tubes can buffer resilience to dissipate energy when impacted, the anticorrosive coating coated on the surface of the rubber pipe is made of cashew nut shell oil, has the characteristics of high impact strength, stable friction coefficient and good corrosion resistance, and can protect the inner walls of the rubber pipe and the corrugated pipe, so that the service life of the corrugated pipe is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:
fig. 1 is an overall structural view of an expansion joint for a corrosion-resistant metal of example 1.
FIG. 2 is a cross-sectional view of the interior of the bellows for a corrosion resistant metal expansion joint of examples 1 and 2.
FIG. 3 is a side view of the inside of a rubber tube for a corrosion resistant metal expansion joint of example 2.
In the drawings, the components represented by the respective reference numerals are listed below:
100. an end tube; 101. an end plate; 102. a pull rod; 103. a conical washer; 104. a bolt; 200. an intermediate pipe; 300. a bellows; 301. a reinforcing rib net; 302. a fastener; 303. a buffer member; 303a, a rubber tube; 303b, an anticorrosive layer; 303c, a cushion airbag.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying the present invention are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Example 1
Referring to fig. 1 and 2, for the first embodiment of the present invention, this embodiment provides an anti-corrosion metal expansion joint, which includes an end pipe 100 and an intermediate pipe 200, wherein the end pipe 100 is disposed at both ends of the intermediate pipe 200, and the end pipe 100 and the intermediate pipe 200 are connected to each other through a corrugated pipe 300, the end pipe 100 includes an end plate 101 welded to the outer wall thereof, a pull rod 102 penetrates through the middle of the end plate 101, both ends of the pull rod 102 are sleeved with a conical washer 103, and a bolt 104 is further connected to one side of the conical washer 103, the corrugated pipe 300 includes a reinforcing rib net 301 welded to the inner wall thereof, a fastener 302 is installed to one side of the reinforcing rib net 301, and a buffer 303 penetrates through the inner side of the fastener 302.
The end pipe 100, the middle pipe 200 and the corrugated pipe 300 are of an integrated structure, the pull rod 102 on the outer side of the end pipe 100 can bear the internal pressure thrust, and the arranged reinforcing rib net 301 can be tightly attached to the inner wall of the corrugated pipe 300, so that the corrugated pipe 300 is prevented from deforming or cracking after thermal expansion, and the overall strength of the corrugated pipe 300 is improved.
Example 2
Referring to fig. 2 and 3, a second embodiment of the present invention, which is different from the first embodiment, is: the buffer member 303 comprises a rubber tube 303a penetrating through the inner side of the fastener 302, the rubber tube 303a is attached to one side of the reinforcing rib net 301, an anticorrosive layer 303b is coated on the outer wall of the rubber tube 303a, a buffer air bag 303c is further installed in the inner cavity of the rubber tube 303a, the rubber tube 303a and the reinforcing rib net 301 are attached to the inner wall of the corrugated tube 300 in a wavy mode, the rubber tube 303a is of a hollow tubular structure, the rubber tube 303a is distributed in an annular array mode in the inner cavity of the corrugated tube 300, and the anticorrosive layer 303b is a component made of cashew nut shell oil.
One side of the reinforcing rib net 301 fixes the rubber tube 303a through the fastener 302, when the air pressure inside the corrugated tube 300 impacts the inner wall of the corrugated tube 300, the rubber tube 303a is arranged on the inner side of the corrugated tube 300 in an annular array shape, the air pressure impacts the surface of the rubber tube 303a, the air pressure is prevented from directly impacting the inner wall of the corrugated tube 300, the inner cavity of the rubber tube 303a is of a hollow tubular structure, the buffer air bag 303c is filled inside the rubber tube 303a, the rubber tube 303a can buffer and rebound to dissipate energy when impacted, the anticorrosive layer 303b coated on the surface of the rubber tube 303a is made of cashew nut shell oil, and the corrugated tube has the characteristics of high impact strength, stable friction coefficient and good corrosion resistance, so that the rubber tube 303a and the inner wall of the corrugated tube 300 can be protected, and the service life of the corrugated tube 300 is prolonged.
It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (6)
1. A corrosion resistant metal expansion joint comprising an end pipe (100) and an intermediate pipe (200), characterized in that: the end pipes (100) are arranged at two ends of the middle pipe (200), and the end pipes (100) and the middle pipe (200) are connected with each other through a corrugated pipe (300);
the end pipe (100) comprises an end plate (101) welded on the outer wall of the end pipe, the pull rod (102) penetrates through the middle of the end plate (101), conical washers (103) are sleeved at two ends of the pull rod (102), and bolts (104) are connected to one sides of the conical washers (103).
2. A corrosion resistant metal expansion joint as claimed in claim 1, wherein: the corrugated pipe (300) comprises a reinforcing rib net (301) welded on the inner wall of the corrugated pipe, a fastener (302) is installed on one side of the reinforcing rib net (301), and a buffer piece (303) penetrates through the inner side of the fastener (302).
3. A corrosion resistant metal expansion joint as claimed in claim 2, wherein: the buffer piece (303) comprises a rubber pipe (303 a) penetrating through the inner side of the fastener (302), the rubber pipe (303 a) is attached to one side of the reinforcing rib net (301), an anticorrosive layer (303 b) is coated on the outer wall of the rubber pipe (303 a), and a buffer air bag (303 c) is further mounted in the inner cavity of the rubber pipe (303 a).
4. A corrosion resistant metal expansion joint according to claim 3, wherein: the rubber tube (303 a) and the reinforcing rib net (301) are attached to the inner wall of the corrugated tube (300) in a wave shape.
5. A corrosion resistant metal expansion joint according to claim 3, wherein: the rubber tubes (303 a) are of a hollow tubular structure, and the rubber tubes (303 a) are distributed in an annular array in the inner cavity of the corrugated pipe (300).
6. A corrosion resistant metal expansion joint according to claim 3, wherein: the anticorrosive layer (303 b) is a member made of cashew nut shell oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220278869.2U CN217519467U (en) | 2022-02-10 | 2022-02-10 | Corrosion-resistant metal expansion joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220278869.2U CN217519467U (en) | 2022-02-10 | 2022-02-10 | Corrosion-resistant metal expansion joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217519467U true CN217519467U (en) | 2022-09-30 |
Family
ID=83366866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220278869.2U Expired - Fee Related CN217519467U (en) | 2022-02-10 | 2022-02-10 | Corrosion-resistant metal expansion joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217519467U (en) |
-
2022
- 2022-02-10 CN CN202220278869.2U patent/CN217519467U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220930 |