CN111928034A - Large-scale flange leakage-proof device and method - Google Patents
Large-scale flange leakage-proof device and method Download PDFInfo
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- CN111928034A CN111928034A CN202010727251.5A CN202010727251A CN111928034A CN 111928034 A CN111928034 A CN 111928034A CN 202010727251 A CN202010727251 A CN 202010727251A CN 111928034 A CN111928034 A CN 111928034A
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- plate
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- filling
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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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Flanged Joints, Insulating Joints, And Other Joints (AREA)
Abstract
A large-scale flange leakage-proof device and method relates to the field of flange leakage-proof, and comprises unit plates, side plates and filling plates, wherein the edges of the unit plates are connected with each other to form a circular ring; through using large-scale flange to prevent leaking the device, combine the method that this application provided, prevent effectively that large-scale flange from preventing leaking, practiced thrift economic cost, eliminated the potential safety hazard.
Description
Technical Field
The invention relates to the field of flange leakage prevention, in particular to a large-scale flange leakage prevention device and method.
Background
Large flanges are flanges which exceed the dimensions specified by the relevant national authorities, and are generally flanges of dimensions above DN 2000. The flange in the continuous production of modern industry is influenced by factors such as medium corrosion, scouring, temperature, pressure, vibration and the like, and the leakage problem can be inevitably caused. The leakage of the flange is easily caused by the processing size error of the sealing surface, the aging of the sealing element, the improper installation and fastening and the like. If the problem of flange leakage cannot be timely solved, the leakage can be rapidly enlarged under the scouring of media, the loss of materials is caused, and the production environment is damaged, so that an enterprise stops working and stops production, and huge economic loss is caused. If toxic, harmful, flammable and explosive media are leaked, serious accidents such as personnel poisoning, fire hazard and explosion can be caused.
At present, the methods for treating leakage of the large flange are not ideal, and if the large flange is replaced after the large flange has a problem, the large flange is very expensive and has long replacement time.
Disclosure of Invention
The invention aims to provide a large flange leakage-proof device and method, which can prevent a large flange from leakage, save economic cost and eliminate potential safety hazards.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a device is prevented leaking by large-scale flange, includes cell board, curb plate and packing plate, and the edge interconnect of cell board forms a ring, and the curb plate is connected with the outside of ring, and the packing plate is connected with the outside and the curb plate at ring top, and the inboard of ring is connected on the pipeline, still is provided with large-scale flange on the pipeline.
Further, the inside radius range of the unit plate is: adding 2-3mm to the outer radius of the pipeline; the outside radius range of the unit plate is as follows: the radius of the outer side of the large flange is added with 50-80 mm.
Furthermore, the ring is provided with at least two unit plates which are symmetrically arranged front and back.
Furthermore, the length range of the filling plate is 100-200mm, and the sum of the lengths of the filling plate and the side plate is the same as the outer diameter of the circular ring; the width ranges of the filling plate and the side plates are as follows: the thickness of the large flange is added with 30-50 mm.
Further, the connection mode among the unit plates, the side plates and the filling plates is welding.
Further, the unit plates, the side plates and the filling plates are steel plates with the thickness ranging from 3mm to 5 mm.
A method of preventing leakage of a large flange, comprising the steps of:
a. measuring the outer diameter of the large flange and the outer diameter of the pipeline;
b. calculating the specification and the size of the unit plate, the side plate and the filling plate according to the measurement result;
c. processing the unit plate, the side plate and the filling plate according to the calculated specification and size;
d. welding the unit plates and the side plates on the pipeline beside the large flange in a sealing way;
e. pouring cement pouring materials or blast furnace stemming into the position where the filling plate is not welded;
f. and after the cement pouring material or the blast furnace stemming is solidified, sealing and welding the filling plate.
In conclusion, the beneficial effects of the invention are as follows:
the invention effectively prevents the leakage problem of the large flange, ensures the continuous production, eliminates the potential safety hazard and avoids the economic loss caused by the flange failure.
Drawings
FIG. 1 is a front view of the large flange leak prevention apparatus of the present invention;
FIG. 2 is a side view of a large flange containment apparatus of the present invention;
FIG. 3 is a diagram of the relationship between the position of a large flange and a pipe;
FIG. 4 is a view of the installation position of the large flange leak preventer of the present invention;
reference numerals in the drawings indicate: 1-unit plate, 2-side plate, 3-filling plate, 4-large flange and 5-pipeline.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1-2, a large flange leakage-proof device comprises unit plates 1, side plates 2 and a filling plate 3, wherein the edges of the unit plates 1 are connected with each other to form a ring, the side plates 2 are connected with the outer sides of the ring, the filling plate 3 is connected with the outer sides of the top of the ring and the side plates 2, the inner sides of the ring are connected with a pipeline 5, a large flange 4 is further arranged on the pipeline 5, and the pipeline 5 and the large flange 4 are known technology and are out of the protection scope of the invention.
Among the above-mentioned device, the ring includes two cell boards 1 at least, and cell board 1 front and back symmetry sets up, and the inboard radius scope of cell board 1 is: the outside radius of the pipeline 5 is added with 2-3mm, and the outside radius range of the unit plate 1 is as follows: the radius of the outer side of the large flange 4 is added with 50-80 mm.
In the device, the filling plate 3 is arranged at the top of the large flange leakage-proof device, the length range of the filling plate 3 is 100-200mm, the sum of the lengths of the filling plate 3 and the side plate 2 is the same as the outer diameter of the circular ring, and the width ranges of the filling plate 3 and the side plate 2 are as follows: the thickness of the large flange 4 plus 30-50 mm.
In the device, the unit plates 1, the side plates 2 and the filling plates 3 are steel plates with the thickness ranging from 3mm to 5mm, and the unit plates 1, the side plates 2 and the filling plates 3 are connected by welding.
It should be noted that, in fig. 1, the number of the unit plates 1 is 4, and the specifications of the unit plates 1 are the same, but the specifications of the unit plates 1 may also be different, so as to form a circular ring and be sleeved on a pipeline; the inner diameter of the unit plate 1 is set in a way that the situation of incomplete sealing can not occur when the unit plate is sleeved on a pipeline for welding, and the outer diameter is set in a way that the weight of filler can not influence the pipeline 5 while the unit plate can wrap the large flange 4; the specification and the size of the filling plate 3 are convenient for filling, and the sealing effect of the filling material is not influenced; the width of the side plate 2 is considered that an excessively narrow space is not beneficial to uniform distribution and solidification of the filling material, and the excessive width can increase the weight and influence the pipeline 5; the unit plates 1, the side plates 2 and the filling plates 3 are all made of steel plates, and the welding sealing effect among the same materials is good.
Referring to fig. 1-4, a method of preventing leakage of a large flange includes the steps of:
a. FIG. 3 is a diagram showing the positional relationship between a large flange and a pipe, in which the outer diameter of the large flange 4 and the outer diameter of the pipe 5 are measured;
b. the specification and the size of the unit plate 1, the side plate 2 and the filling plate 3 are roughly calculated according to the measurement result and the actual situation, and the actual situation mainly considers whether the surface of the pipeline 5 is easy to weld, whether the unit plate 1, the side plate 2 and the filling plate 3 are convenient to process and the like;
c. processing the unit plate 1, the side plate 2 and the filling plate 3 according to the calculated specification and size;
d. the unit plate 1 and the side plate 2 are hermetically welded on the pipeline 5 beside the large flange 4, so that the influence of a leak on subsequent operation is avoided during welding;
e. pouring cement pouring materials or blast furnace stemming into the position where the filling plate 3 is not welded;
f. after the cement pouring material or the blast furnace stemming is solidified, the filling plate 3 is sealed and welded, and the large flange leakage-proof device is installed as shown in figure 4.
It should be noted that the invention is equally applicable to large flanges where small gaps have occurred.
Claims (7)
1. The utility model provides a large-scale flange prevents leaking device which characterized in that: the unit plate comprises a unit plate (1), a side plate (2) and a filling plate (3), wherein the edges of the unit plate (1) are connected with each other to form a circular ring, the side plate (2) is connected with the outer side of the circular ring, the filling plate (3) is connected with the outer side of the top of the circular ring and the side plate (2), the inner side of the circular ring is connected onto a pipeline (5), and a large flange (4) is further arranged on the pipeline (5).
2. A large flange leak prevention apparatus, as per claim 1, wherein: the radius range of the inner side of the unit plate (1) is as follows: the radius of the outer side of the pipeline (5) is added with 2-3 mm; the outside radius range of the unit plate (1) is as follows: the radius of the outer side of the large flange (4) is increased by 50-80 mm.
3. A large flange leak prevention apparatus, as per claim 1, wherein: the ring at least comprises two unit plates (1), and the unit plates (1) are symmetrically arranged in front and back.
4. A large flange leak prevention apparatus, as per claim 1, wherein: the length range of the filling plate (3) is 100-200mm, and the sum of the lengths of the filling plate (3) and the side plate (2) is the same as the outer diameter of the circular ring; the width ranges of the filling plate (3) and the side plates (2) are as follows: the thickness of the large flange (4) is added with 30-50 mm.
5. A large flange leak prevention apparatus, as per claim 1, wherein: the unit plates (1), the side plates (2) and the filling plates (3) are connected by welding.
6. A large flange leak prevention apparatus, as per claim 1, wherein: the unit plates (1), the side plates (2) and the filling plates (3) are steel plates with the thickness range of 3-5 mm.
7. A method for preventing leakage of a large flange using the large flange leakage prevention apparatus according to any one of claims 1 to 6, comprising the steps of:
a. measuring the outer diameter of the large flange (4) and the outer diameter of the pipeline (5);
b. calculating the specification and the size of the unit plate (1), the side plate (2) and the filling plate (3) according to the measurement result;
c. processing the unit plate (1), the side plate (2) and the filling plate (3) according to the calculated specification and size;
d. the unit plate (1) and the side plate (2) are hermetically welded on the pipeline (5) beside the large flange (4);
e. pouring cement pouring materials or blast furnace stemming into the position where the filling plate (3) is not welded;
f. and after the cement pouring material or the blast furnace stemming is solidified, the filling plate (3) is hermetically welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010727251.5A CN111928034A (en) | 2020-07-23 | 2020-07-23 | Large-scale flange leakage-proof device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010727251.5A CN111928034A (en) | 2020-07-23 | 2020-07-23 | Large-scale flange leakage-proof device and method |
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| Publication Number | Publication Date |
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| CN111928034A true CN111928034A (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010727251.5A Pending CN111928034A (en) | 2020-07-23 | 2020-07-23 | Large-scale flange leakage-proof device and method |
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| CN (1) | CN111928034A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327865Y (en) * | 1998-04-22 | 1999-07-07 | 王明岐 | Structure for repairing and connecting steel pipe with turnable glass fiber reinforced plastic lining |
| JP2016017627A (en) * | 2014-07-11 | 2016-02-01 | 株式会社Ihi | Leakage fluid diffusion prevention device and leakage fluid diffusion prevention method |
| CN107420666A (en) * | 2017-09-13 | 2017-12-01 | 马付林 | A kind of connection method between steel pipeline inside lining anti-corrosive construction section |
| CN210069250U (en) * | 2019-04-30 | 2020-02-14 | 济南城建集团有限公司 | Slurry leakage repairing device for slurry balance shield machine slurry circulation pipeline flange interface |
| CN110848235A (en) * | 2019-11-11 | 2020-02-28 | 湖南天行健能源管理有限公司 | Rust-resistant tight flange device |
-
2020
- 2020-07-23 CN CN202010727251.5A patent/CN111928034A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2327865Y (en) * | 1998-04-22 | 1999-07-07 | 王明岐 | Structure for repairing and connecting steel pipe with turnable glass fiber reinforced plastic lining |
| JP2016017627A (en) * | 2014-07-11 | 2016-02-01 | 株式会社Ihi | Leakage fluid diffusion prevention device and leakage fluid diffusion prevention method |
| CN107420666A (en) * | 2017-09-13 | 2017-12-01 | 马付林 | A kind of connection method between steel pipeline inside lining anti-corrosive construction section |
| CN210069250U (en) * | 2019-04-30 | 2020-02-14 | 济南城建集团有限公司 | Slurry leakage repairing device for slurry balance shield machine slurry circulation pipeline flange interface |
| CN110848235A (en) * | 2019-11-11 | 2020-02-28 | 湖南天行健能源管理有限公司 | Rust-resistant tight flange device |
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Application publication date: 20201113 |
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