CN212361199U - Novel elbow structure convenient to change - Google Patents
Novel elbow structure convenient to change Download PDFInfo
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- CN212361199U CN212361199U CN202021045480.0U CN202021045480U CN212361199U CN 212361199 U CN212361199 U CN 212361199U CN 202021045480 U CN202021045480 U CN 202021045480U CN 212361199 U CN212361199 U CN 212361199U
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- elbow
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Abstract
The utility model discloses a novel elbow structure convenient for replacement, which is characterized in that a shell is arranged on an elbow body, the brushing surface of the elbow body is provided with an arched portable replacement bag, the portable replacement bag and the elbow body are connected and fixed through a mating flange, and a polytetrafluoroethylene sealing lining is arranged between connecting and sealing surfaces; the side of the sealing surface, which is close to the inner wall of the elbow body, is provided with an inclined plane, and the side of the sealing surface, which is far away from the inner wall of the elbow body, is provided with a boss; the portable replacing bag comprises an outer shell and a wear-resistant lining, and the wear-resistant lining is tightly attached to the outer shell; the companion flange sets up to waist shape, companion flange passes through fastening bolt locking. The device has the advantages of simple structure, good stability, safety and reliability, greatly reduces the workload of maintenance and replacement, reduces the working difficulty, saves time and labor, and greatly improves the working efficiency; and can realize instant change, reduce the potential safety hazard.
Description
Technical Field
The utility model relates to a field of elbow especially relates to a novel elbow structure convenient to change.
Background
The elbow is required to be used by the powder feeding pipeline of the medium-speed coal mill, and the abrasion degree and the replacement period of the elbow are different due to different industrial and mining conditions of each power plant, so that great difficulty is brought to the maintenance and replacement of the elbow; the space limitation causes time and labor waste in maintenance, the operation difficulty is high, the downtime caused by replacement is long, and the working efficiency is greatly reduced; the failure of timely maintenance and replacement brings great hidden danger to the operation safety; therefore, a new elbow structure needs to be designed.
Disclosure of Invention
The utility model aims at providing a novel elbow structure convenient to replace, which has compact structure and good stability, can realize quick replacement and improve the working efficiency; the technical problem is solved.
In order to realize the technical purpose, reach foretell technical requirement, the utility model discloses the technical scheme who adopts is: a novel elbow structure convenient to replace comprises an elbow body; the method is characterized in that: the elbow comprises an elbow body and is characterized in that a shell is arranged on the elbow body, a portable replacing bag is arranged on a flushing surface of the elbow body, the portable replacing bag is arched and is fixedly connected with the elbow body through a mating flange, and a sealing lining is arranged between connecting sealing surfaces.
Preferably: the side of the sealing surface, which is close to the inner wall of the elbow body, is set to be an inclined plane, and the side of the sealing surface, which is far away from the inner wall of the elbow body, is set to be a boss.
Preferably: the sealing lining is made of polytetrafluoroethylene rubber.
Preferably: the portable replacing bag comprises an outer shell and a wear-resistant lining, and the wear-resistant lining is tightly attached to the outer shell; the wear-resistant lining is made of ceramic or high-chromium-molybdenum wear-resistant alloy; the shell and the wear-resistant lining are adhered by high-temperature wear-resistant inorganic glue or integrally cast and formed by a vacuum lost foam.
Preferably: the companion flange sets up to waist shape, companion flange passes through fastening bolt locking.
The utility model has the advantages that; the utility model provides a novel elbow structure convenient to change, compares with traditional structure: the flushing surface of the elbow body is provided with the arched portable replacement bag, so that the flushing resistance is good, and the service life is long; the portable replacement bag is connected and fixed with the elbow body through the mating flanges, so that the disassembly is convenient and rapid, the operation is convenient, and the replacement is convenient and timely; a polytetrafluoroethylene sealing lining is arranged between the connecting sealing surfaces, so that the sealing effect is good, and the wear resistance, corrosion resistance and high temperature resistance are excellent; the utility model has simple structure, good stability, safety and reliability, is especially suitable for the situation that the maintenance elbow needs to be frequently replaced, greatly reduces the workload of maintenance and replacement, reduces the working difficulty, saves time and labor, and greatly improves the working efficiency; and can realize instant change, reduce the potential safety hazard.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a view of the present invention taken along line A of FIG. 1;
FIG. 3 is an enlarged view of I of FIG. 1 according to the present invention;
in the figure: 1. an elbow body; 2. a housing; 3. a portable change pack; 3-1. a shell; 3-2, wear-resistant lining; 4. a sealing surface; 5. sealing the inner liner; 6. and (4) mating the flanges.
Detailed Description
In order to make the object, technical solution and beneficial technical effects of the present invention clearer, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments;
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 simplicity of description, and 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.
In the drawings: a novel elbow structure convenient to replace comprises an elbow body 1; is characterized in that the elbow body 1 is provided with a shell 2, the flushing surface of the elbow body 1 is provided with a portable replacing bag 3, the portable replacing bag 3 is arched and is fixedly connected with the elbow body 1 through a mating flange 6, and a sealing lining 5 is arranged between the connecting sealing surfaces 4.
Specifically, one side of the sealing surface 4, which is close to the inner wall of the elbow body 1, is provided with a downward inclined surface, and according to the principle that water flows to a lower position, the downward inclined surface preliminarily blocks the fluid in the pipeline from leaking from the connection position of the portable replacement bag; keep away from 1 inner wall of elbow body one side and set up to the boss form, form V font curved surface sealed, strengthened sealed effect.
The sealing lining 5 is made of polytetrafluoroethylene, has good sealing performance, good acid-base and organic solvent resistance, high lubrication non-adhesiveness, electrical insulation, good ageing resistance, excellent temperature resistance and the like, and can work for a long time at the temperature of between 250 ℃ below zero and 180 ℃ below zero.
The portable replacing bag 3 comprises an outer shell 3-1 and a wear-resistant lining 3-2, wherein the wear-resistant lining 3-2 is tightly attached to the outer shell 3-1; the wear-resistant lining 3-2 is made of ceramic or high-chromium-molybdenum wear-resistant alloy; the wear resistance is good, the service life is long, the maintenance and replacement period is prolonged, and the use cost is reduced; the shell 3-1 and the wear-resistant lining 3-2 are adhered by high-temperature wear-resistant inorganic glue or integrally cast and formed by a vacuum lost foam; reliable connection, difficult shedding and good use effect.
The companion flange 6 is waist-shaped, and the companion flange 6 is locked by a fastening bolt; convenient and fast disassembly and convenient operation.
The utility model discloses a concrete implementation: an oval notch is obliquely cut on a brushing surface of a common 90-degree elbow in the prior art, a waist-shaped lower flange is welded along the edge of the notch of an elbow body, and a V-shaped groove is formed in the upper end surface of the lower flange; an upper flange is welded on the portable replacement bag, a V-shaped convex block matched with the V-shaped groove is arranged on the lower end face of the upper flange, the lower end face of the upper flange is step-shaped, and a polytetrafluoroethylene sealing lining is filled in a gap formed between the lower flange and the upper end face of the lower flange; the upper flange and the lower flange are connected and fixed through bolts uniformly distributed on the periphery, so that the mounting and the dismounting are convenient; the utility model has simple structure, good stability, safety and reliability, is especially suitable for the situation that the maintenance elbow needs to be frequently replaced, greatly reduces the workload of maintenance and replacement, reduces the working difficulty, saves time and labor, and greatly improves the working efficiency; the instant replacement can be realized, and the potential safety hazard is reduced; the portable replacement bag has good milk scouring performance and long service life, prolongs the replacement period and reduces the use cost.
The foregoing examples are given for the purpose of illustrating the present invention in a clear and non-restrictive manner, and it will be apparent to those skilled in the art that variations and modifications of the present invention may be made in other variations and modifications based on the foregoing description, and it is not necessary or necessary to exhaustively enumerate all embodiments, and all such variations and modifications as are obvious and desirable in the art are within the scope of the present invention.
Claims (5)
1. A novel elbow structure convenient to replace comprises an elbow body (1); the method is characterized in that: the elbow is characterized in that a shell (2) is arranged on the elbow body (1), a portable replacing bag (3) is arranged on the flushing surface of the elbow body (1), the portable replacing bag (3) is arched and is fixedly connected with the elbow body (1) through a mating flange (6), and a sealing lining (5) is arranged between the connecting sealing surfaces (4).
2. The novel elbow structure convenient to replace of claim 1, wherein: one side of the sealing surface (4) close to the inner wall of the elbow body (1) is provided with an inclined plane, and one side of the sealing surface far away from the inner wall of the elbow body (1) is provided with a boss.
3. The novel elbow structure convenient to replace of claim 1, wherein: the sealing lining (5) is made of polytetrafluoroethylene rubber.
4. The novel elbow structure convenient to replace of claim 1, wherein: the portable replacement bag (3) comprises an outer shell (3-1) and a wear-resistant lining (3-2), wherein the wear-resistant lining (3-2) is tightly attached to the outer shell (3-1); the wear-resistant lining (3-2) is made of ceramic or high-chromium-molybdenum wear-resistant alloy; the shell (3-1) and the wear-resistant lining (3-2) are adhered by high-temperature wear-resistant inorganic glue or integrally cast and formed by a vacuum lost foam.
5. The novel elbow structure convenient to replace of claim 1, wherein: the companion flange (6) is waist-shaped, and the companion flange (6) is locked through a fastening bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045480.0U CN212361199U (en) | 2020-06-09 | 2020-06-09 | Novel elbow structure convenient to change |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021045480.0U CN212361199U (en) | 2020-06-09 | 2020-06-09 | Novel elbow structure convenient to change |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212361199U true CN212361199U (en) | 2021-01-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021045480.0U Active CN212361199U (en) | 2020-06-09 | 2020-06-09 | Novel elbow structure convenient to change |
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| Country | Link |
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| CN (1) | CN212361199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811241A (en) * | 2022-05-16 | 2022-07-29 | 湖南三一中阳机械有限公司 | Bent pipe, bent pipe casting method, concrete conveying pipe assembly and operation machine |
-
2020
- 2020-06-09 CN CN202021045480.0U patent/CN212361199U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114811241A (en) * | 2022-05-16 | 2022-07-29 | 湖南三一中阳机械有限公司 | Bent pipe, bent pipe casting method, concrete conveying pipe assembly and operation machine |
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