CN216382981U - Sealing and leakage-stopping structure of comb-tooth-shaped eccentric flange - Google Patents
Sealing and leakage-stopping structure of comb-tooth-shaped eccentric flange Download PDFInfo
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- CN216382981U CN216382981U CN202122990323.8U CN202122990323U CN216382981U CN 216382981 U CN216382981 U CN 216382981U CN 202122990323 U CN202122990323 U CN 202122990323U CN 216382981 U CN216382981 U CN 216382981U
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Abstract
The application discloses a sealing and leakage-blocking structure of a comb-tooth-shaped eccentric flange, which relates to the field of flange connection leakage maintenance and solves the problems that in the prior art, due to the influence of long-term vibration on the flange, eccentricity of different degrees is generated, and leakage occurs at the flange connection part; the application includes a clamp and a flange; the flange is an eccentric flange, the clamping piece is arranged in an eccentric shape, and the eccentric direction of the clamping piece is fixed on the periphery of the flange according to the eccentric direction of the flange; chucking spare is including installing the boss at flange joint department, and the boss of chucking spare is installed between the junction of flange, and chucking spare axial both ends and flange fastening department be the chucking contact surface, and the axial processing of chucking contact surface along flange mounting has comb-tooth structure, and behind chucking spare and the flange mounting, comb-tooth structure forms a plurality of sealed chambeies. The application can establish new seal chamber with the leakage medium more effectively, and the high leaking stoppage achievement rate of sealed effect is high.
Description
Technical Field
The application relates to the field of flange connection leakage overhaul, in particular to a sealing and leakage-blocking structure of a comb-tooth-shaped eccentric flange.
Background
The main problems that are easy to occur to many equipment pipeline flanges in the installation or operation process are: firstly, the flange is eccentric because the construction operation is not centered and directly installed; secondly, when equipment in the device runs at high temperature and high pressure, the flanges are influenced by long-term vibration to generate eccentricity of different degrees, and thirdly, the mounting defects that the outer diameters of the two connecting flanges are different cause leakage at the flange joint due to the reduction of the compressive strength of the joint of the flanges of the pipeline equipment.
The success rate of 89 times of failures and 26 times of failures of leakage stoppage in the investigation of flange leakage stoppage in 2020 is 71%, and the investigation finds that the leakage stoppage failure is caused mainly because the clamp is not processed eccentrically when a concave-convex platform clamp is processed, and the leakage stoppage failure is caused by the leakage of a sealant.
Disclosure of Invention
The embodiment of the application provides a sealed leaking stoppage structure of broach shape eccentric flange through providing, the influence that the flange received long-term vibration among the prior art has been solved, produce the off-centre of different degrees, make the junction of piping installation flange, compressive strength reduces the problem that has the emergence when leading to flange junction to leak, the fixed eccentric leakage flange position of broach sealing characteristics of having realized chucking spare, utilize broach shape multichannel sealing effect, therefore can be more effectual establish new sealed chamber with the leakage medium, sealed effect height leaking stoppage achievement rate is high, can plug up the problem at the leakage position because flange mounting reason or flange are not of uniform size produce.
The embodiment of the utility model provides a sealing and leakage-stopping structure of a comb-tooth-shaped eccentric flange, which comprises a clamping piece and a flange;
the flange is an eccentric flange, the clamping piece is arranged in an eccentric shape, and the eccentric direction of the clamping piece is fixed on the periphery of the flange according to the eccentric direction of the flange;
the chucking spare is including installing the clearance installation position of flange joint department, the clearance installation position of chucking spare is installed between the junction of flange, just chucking spare axial both ends with flange fastening department is the chucking contact surface, the chucking contact surface along flange mounting's axial processing has comb-tooth-shaped structure, the chucking spare with flange mounting back, comb-tooth-shaped structure forms a plurality of sealed chambeies.
In a possible implementation manner, the plurality of seal cavities are respectively located on two sides of the flange installation part, and the size of each seal cavity is the same.
In a possible implementation manner, the clamping piece is a double clamping hoop, and two ends of the double clamping hoop abut against two ends of the flange installation part;
the double clamp comprises an ear plate and a tension bolt, and the ear plate and the tension bolt fix the clamping piece on the periphery of the flange.
In one possible implementation, the ear plate, the tension bolt and the clamping piece are all made of Q325 steel or stainless steel.
In a possible implementation manner, at least one glue injection hole is formed in the double-clamp, and the glue injection hole is located at the position, close to the clamping contact surface, of the gap installation portion.
In a possible implementation manner, the comb-shaped structure is suitable for a situation that the gap of the flange at the connection position is larger than 8mm, or the gap of the flange connection is smaller than 8mm, but the pressure of a leaked medium is larger than 2.5Mpa, or the flange is eccentric, and the outer diameters of two sides of the flange connection position are different.
In a possible implementation manner, the gap at the joint of the flanges is greater than 8mm, and a boss structure is used as the gap installation position; the flange connection gap is smaller than 8mm, and a groove structure is used at the gap installation position.
One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:
the embodiment of the utility model adopts the clamping piece to be arranged in an eccentric shape, the eccentric direction of the clamping piece is fixed on the periphery of the flange according to the eccentric direction of the flange, the gap installation part of the clamping piece is installed between the joints of the flange, the two axial ends of the clamping piece and the flange form clamping contact surfaces, the contact surfaces of the clamping piece and the flange are processed into the comb-shaped structure, and after the clamping piece and the flange are installed, the comb-shaped structure forms a plurality of sealing cavities, thereby effectively solving the problems that the flange is influenced by long-term vibration in the prior art, generates eccentricity of different degrees, causes the joint of the flange of the pipeline equipment, and the compression strength is reduced to cause the leakage at the joint of the flange, further realizing the formation of a plurality of sealing cavities, greatly reducing the leakage rate of the sealant, improving the success rate of leaking stoppage, increasing the success rate from the original 71% to 98%, and greatly reducing the problem that the device is stopped to avoid companies due to the leakage of the whole device caused by the flange leakage And huge economic loss is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a sealing and leakage-blocking structure of a comb-tooth-shaped eccentric flange provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a clamp provided in an embodiment of the present invention.
Icon: 1-ear plate; 2-tensioning the bolt; 3-a comb-like structure; 4-a clip; 41-gap mounting location; 5-flange.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the embodiments 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 in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.
Referring to fig. 1, an embodiment of the present invention provides a sealing and leakage-blocking structure for a comb-shaped eccentric flange, including a clamping member 4 and a flange 5; the flange 5 is an eccentric flange, the clamping piece 4 is arranged in an eccentric shape, and the eccentric direction of the clamping piece 4 is fixed on the periphery of the flange 5 according to the eccentric direction of the flange 5; chucking spare 4 is including installing the clearance installation position 41 at the flange 5 junction, and the clearance installation position 41 of chucking spare 4 is installed between the junction of flange 5, and 4 axial both ends of chucking spare and the flange 5 fastening department are the chucking contact surface, and the axial processing of chucking contact surface along the flange 5 installation has comb-tooth-shaped structure 3, and chucking spare 4 and flange 5 installation back, comb-tooth-shaped structure 3 forms a plurality of sealed chambeies.
Through the above scheme, chucking spare 4's eccentric direction is fixed in flange 5's periphery according to flange 5's eccentric direction, make chucking spare 4 can cooperate flange 5's direction, as far as possible and tightly fixed between flange 5's periphery, and chucking spare 4's clearance installation position 41 installs the back between flange 5, chucking spare 4 axial both ends and flange 5 fixed department are the chucking contact surface, broach shaped structure 3 on chucking spare 4 can form multichannel sealed effect, therefore can more effectively establish new sealed chamber with the leakage medium, compact structure not only, it is nimble simple and convenient to use, use a plurality of sealed chambeies that broach shaped structure 3 formed, sealed effect height leak stoppage rate is high, can plug up the leakage position that produces because flange 5 erection reason or flange 5 are not of uniform size.
Optionally, a plurality of sealed chambeies are located the both sides at flange 5 installation position respectively, and every sealed chamber's size is the same, and a plurality of sealed chambeies strengthen the vortex effect, play great hindrance effect, every sealed chamber size of comb-tooth structure 3 is the same, guarantees the vortex that each sealed chamber can both be even, can be so that the both ends of flange 5 junction have the same effect that hinders the medium flow, guarantees that the leaking stoppage performance at the both ends of flange 5 junction can both equal improvement.
Referring to fig. 2, optionally, the clamping member 4 is a double-hoop, and two ends of the double-hoop abut against two ends of the installation position of the flange 5; the double-hoop comprises an ear plate 1 and a tension bolt 2, the clamping piece 4 is fixed on the periphery of the flange 5 by the ear plate 1 and the tension bolt 2, the double-hoop is adopted, the two ends of the installation position of the flange 5 can be fastened, the tightness is good, the clamping piece 4 is fixed on the periphery of the flange 5 by the ear plate 1 and the tension bolt 2, and the installation and the disassembly are convenient.
Optionally, the ear plate 1, the tension bolt 2 and the clamping piece 4 are made of Q325 steel or stainless steel, and the Q325 steel or stainless steel is high in hardness and not easy to break.
Optionally, at least one glue injection hole is formed in the double-hoop, the glue injection hole is located in the gap installation position 41 and close to the clamping contact surface, the joint of the flange 5 is blocked through the double-hoop, if a medium leaks from the joint of the flange 5, glue can be injected through the glue injection hole, the leaked medium is blocked in the comb-shaped structure 3 after glue injection, and therefore the leakage blocking work is completed.
Optionally, the comb-shaped structure 3 is suitable for a situation that the gap at the connection position of the flange 5 is larger than 8mm, or the connection gap of the flange 5 is smaller than 8mm, but the pressure of a leaked medium is larger than 2.5Mpa, or the flange 5 is eccentric, and the outer diameters of two sides of the connection position of the flange 5 are different.
Meeting the requirement of the gap or the common requirement of the gap and the pressure, a more reliable leaking stoppage structure is urgently needed, otherwise, the situation of sealant leakage and leaking stoppage failure can occur; the comb-shaped structure 3 can improve the safety and reliability of the flange joint, form a plurality of sealing cavities, greatly reduce the leakage rate of the sealant and improve the success rate of leaking stoppage. The pressure of the common leaking stoppage structure is lower than that of leaking parts below 2.5MPa, and the device can stop leaking parts above 2.5 MPa.
Optionally, when the gap at the connection position of the flange 5 is greater than 8mm, the gap mounting portion 41 uses a boss structure; when the connection gap of the flange 5 is smaller than 8mm, the gap mounting portion 41 adopts a groove structure. If the clearance is less than 8mm, for the aforesaid notes hole of gluing, the mobility of injecting glue is poor, so clearance installation position 41 adopts the recess effect better, more is favorable to the flow of injecting glue.
The embodiment of the utility model comprises an eccentric multi-channel sealing device assembled by an ear plate 1, a tension bolt 2, a comb-shaped structure 3, a double hoop and a leakage flange 5, and the specific manufacturing process comprises the following steps: (1) manufacturing the overall dimension of the hoop: cutting the next circle by a plasma cutting machine into two halves by a sawing machine, and then carrying out electric welding reinforcement on the cut by electric welding; and (4) turning by using a lathe to obtain an eccentric sealing table, and turning a comb-tooth-shaped sealing cavity and carrying out burr treatment. (2) Cutting four ear plates 1 with different pressure grades by using plasma, and milling a cut surface by using a milling machine; according to processing out the fastening bolt hole with the drilling machine with otic placode 1 and carrying out the processing of polishing, otic placode 1 that will process is according to the dimensional requirement, utilizes argon arc to weld otic placode 1 and clamp welding together will symmetrical the welding in welding process and prevent welding deformation. (3) Installing fastening bolts on the welded comb-tooth-shaped eccentric flange leakage stopping structure; the application method of the eccentric flange sealing leakage-stopping structure comprises the following steps: taking a pair of eccentric flanges with the nominal diameter of plugging being theta 300 and the working medium with the working pressure being 2.5Mpa being high-pressure steam as an example, detaching the fastening bolts from the manufacturing device of the processed eccentric flange sealing structure, mounting the hoop at the position of the leaking flange and knocking tightly by a copper hammer, and penetrating the fastening bolts through the lug plate 1 and screwing tightly; and injecting glue to finish the leakage stopping work.
The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.
Claims (7)
1. A sealing and leakage-stopping structure of a comb-tooth-shaped eccentric flange is characterized by comprising a clamping piece (4) and a flange (5);
the flange (5) is an eccentric flange, the clamping piece (4) is arranged in an eccentric shape, and the eccentric direction of the clamping piece (4) is fixed on the periphery of the flange (5) according to the eccentric direction of the flange (5);
chucking spare (4) are including installing clearance installation position (41) of flange (5) junction, install clearance installation position (41) of chucking spare (4) between the junction of flange (5), just chucking spare (4) axial both ends with flange (5) fastening department is the chucking contact surface, the chucking contact surface along the axial processing of flange (5) installation has comb-tooth-shaped structure (3), chucking spare (4) with flange (5) installation back, comb-tooth-shaped structure (3) form a plurality of sealed chambeies.
2. The sealing and leakage-stopping structure of the comb-shaped eccentric flange according to claim 1, wherein a plurality of the sealing cavities are respectively positioned at two sides of the installation part of the flange (5), and the size of each sealing cavity is the same.
3. The sealing and leakage-stopping structure of the comb-shaped eccentric flange according to claim 1, wherein the clamping piece (4) is a double clamping hoop, and two ends of the double clamping hoop are tightly pressed against two ends of the installation position of the flange (5);
the double-hoop comprises an ear plate (1) and a tension bolt (2), wherein the ear plate (1) and the tension bolt (2) fix the clamping piece (4) on the periphery of the flange (5).
4. The sealing and leakage-stopping structure of the comb-shaped eccentric flange according to claim 3, wherein the ear plate (1), the tightening bolt (2) and the double clamping band are all made of Q325 steel or stainless steel.
5. The sealing and leakage-stopping structure of the comb-shaped eccentric flange according to claim 3, wherein at least one glue injection hole is formed in the double clamping band, and the glue injection hole is located at the gap mounting part (41) close to the clamping contact surface.
6. The sealing and leakage-stopping structure of the comb-shaped eccentric flange according to claim 1, wherein the comb-shaped structure (3) is suitable for the condition that the gap of the joint of the flange (5) is more than 8mm, or the gap of the joint of the flange (5) is less than 8mm, but the pressure of a leakage medium is more than 2.5Mpa, or the flange (5) is eccentric, and the outer diameters of two sides of the joint of the flange (5) are different.
7. The sealing and leakage-stopping structure of the comb-shaped eccentric flange according to claim 6, wherein the gap at the joint of the flange (5) is more than 8mm, and a boss structure is used as the gap mounting part (41); the connection gap of the flange (5) is smaller than 8mm, and the gap mounting part (41) adopts a groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122990323.8U CN216382981U (en) | 2021-12-01 | 2021-12-01 | Sealing and leakage-stopping structure of comb-tooth-shaped eccentric flange |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122990323.8U CN216382981U (en) | 2021-12-01 | 2021-12-01 | Sealing and leakage-stopping structure of comb-tooth-shaped eccentric flange |
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| CN216382981U true CN216382981U (en) | 2022-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013615A (en) * | 2022-07-01 | 2022-09-06 | 安徽瑞远管道有限公司 | Quick safe connecting device of siphon drain pipe |
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2021
- 2021-12-01 CN CN202122990323.8U patent/CN216382981U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115013615A (en) * | 2022-07-01 | 2022-09-06 | 安徽瑞远管道有限公司 | Quick safe connecting device of siphon drain pipe |
| CN115013615B (en) * | 2022-07-01 | 2023-12-15 | 安徽瑞远管道有限公司 | Quick and safe connecting device for siphon drain pipe |
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Address after: 710000 energy and chemical comprehensive utilization Industrial Park, yangqiaopan Town, Jingbian County, Yulin City, Shaanxi Province Patentee after: Shaanxi Yanchang Zhongmei Yulin Energy and Chemical Co.,Ltd. Address before: 710000 energy and chemical comprehensive utilization Industrial Park, yangqiaopan Town, Jingbian County, Yulin City, Shaanxi Province Patentee before: SHAANXI YANCHANG CHINACOAL YULIN ENERGY CHEMICAL CO.,LTD. |
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