CN109538875A - A kind of low pressure pipeline branch pipe connection device for plugging and its blocking method - Google Patents
A kind of low pressure pipeline branch pipe connection device for plugging and its blocking method Download PDFInfo
- Publication number
- CN109538875A CN109538875A CN201811471553.XA CN201811471553A CN109538875A CN 109538875 A CN109538875 A CN 109538875A CN 201811471553 A CN201811471553 A CN 201811471553A CN 109538875 A CN109538875 A CN 109538875A
- Authority
- CN
- China
- Prior art keywords
- fixture block
- branch pipe
- pipe connection
- low pressure
- elevator
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000000903 blocking effect Effects 0.000 title claims abstract description 9
- 238000007789 sealing Methods 0.000 claims description 12
- 230000007547 defect Effects 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 abstract description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000012945 sealing adhesive Substances 0.000 description 1
Classifications
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/16—Devices for covering leaks in pipes or hoses, e.g. hose-menders
- F16L55/168—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe
- F16L55/17—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
- F16L55/172—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention belongs to nuclear power station maintenance technique fields, and in particular to a kind of low pressure pipeline branch pipe connection device for plugging and its blocking method, including elevator, to fixture block A, to fixture block B, fastening bolt, elevator fastening nut and otic placode；It is described that fixture block A is fixedly connected with folder by clamping bolt with to fixture block B, it is described to fixture block A and to otic placode is provided on the outside of fixture block B, otic placode lifting hole(eyelet) is provided on the otic placode；The elevator both ends are penetrated to fixture block A and in the otic placode lifting hole(eyelet) of fixture block B, and are connected and fixed by elevator fastening nut.
Description
Technical field
The invention belongs to nuclear power station maintenance technique fields, and in particular to a kind of low pressure pipeline branch pipe connection device for plugging and its
Blocking method.
Background technique
Nuclear power plant technique system contains the carbon steel piping of a large amount of low pressure steam medium, and there are two-phases for many carbon steel pipings
Flow medium is easy to produce Flow accelerated corrosion, and pipeline is caused to be thinned, thus there is the defect leaked, medium continuous erosion pipeline,
Along with the vibration of pipeline influences, it is easy to be broken pipeline.Many times the defect of these leakages is appeared in and is responsible for
On connected branch pipe, the especially attachment weld of branch pipe and supervisor.Many process system pipelines cannot when unit operates normally
Isolation maintenance, therefore the pipeline for defect occur will affect unit safety stable operation.
Branch pipe is broken when low pressure pipeline branch pipe connection leaks in order to prevent, while defect of stopping a leak, it is therefore desirable to be formulated
The device and blocking method of one anti-branch pipe fracture when leaking for low pressure pipeline branch pipe connection, prevent low pressure pipeline branch pipe connection
Leakage and fracture impact unit safety stable operation.
Summary of the invention
Object of the present invention is to provide in view of the above shortcomings of the prior art a kind of low pressure pipeline branch pipe connection device for plugging and
Its blocking method, for solving the technical issues of low pressure pipeline branch pipe connection leakage branch pipe is broken.
The technical scheme is that
A kind of low pressure pipeline branch pipe connection device for plugging, including elevator, to fixture block A, tight to fixture block B, fastening bolt, elevator
Gu nut and otic placode；It is described that fixture block A is fixedly connected with folder by clamping bolt with to fixture block B, it is described to fixture block A and to fixture block
It is provided with otic placode on the outside of B, is provided with otic placode lifting hole(eyelet) on the otic placode；The elevator both ends are penetrated to fixture block A and to fixture block B's
In otic placode lifting hole(eyelet), and it is connected and fixed by elevator fastening nut.
It is described to fixture block A and be T font structure to fixture block B, to fixture block A and being provided with to folder face center to fixture block B
Semicircle groove, for placing branch pipe connection, the two halves round recessed internal diameter is identical, and the semicircle groove internal diameter connects with branch pipe
Head outer diameter matches.
Compression sealing strip is additionally provided between the two halves round recessed and branch pipe connection outer diameter.
The elevator generally U-shaped structure, the both ends of the elevator are equipped with external screw thread.
It is described to match to fixture block A and to spacing between the two otic placode lifting hole(eyelet)s opened up on fixture block B with low pressure pipeline outer diameter.
The fastening bolt quantity is four.
A kind of blocking method of low pressure pipeline branch pipe connection device for plugging as described above, includes the following steps:
Step 1: being pressed on the leak source of branch pipe connection first with sealing joint strip, then will be to fixture block A and to B pairs of fixture block
Folder, is fastened using fastening bolt；
Step 2: sealing joint strip is compressed, elevator both ends are then each passed through the otic placode lifting hole(eyelet) on two pairs of fixture blocks, across low
Pressure pipeline branch pipe is hung to fixture block A and to fixture block B, then fastens elevator using elevator fastening nut, is tensed to fixture block A and right
Fixture block B；
Step 3: it recycles fastening bolt to continue fastening to fixture block A and to fixture block B, sealing joint strip is compressed, until eliminating branch
Leakage defect on pipe fitting.
The invention has the following advantages:
1, the present invention utilizes original leakage point Pipe installing arragement construction, designs a kind of fixture of special construction, using setting
The fixture of meter provides pulling force for branch pipe, prevents its fracture；
2, present apparatus environmental sealing adhesive tape on the outside of leakage point forms seal pressure using bolt fastening pipe clamp, eliminates and is situated between
Matter leakage defect；
3, present apparatus structure is simple, and the set-up time is short, can eliminate defect rapidly, reduces personnel's operation intensity.
Detailed description of the invention
Fig. 1 is a kind of low pressure pipeline branch pipe connection device for plugging schematic diagram designed by the present invention；
Fig. 2 is a kind of low pressure pipeline branch pipe connection device for plugging scheme of installation designed by the present invention；
Fig. 3 is a kind of low pressure pipeline branch pipe connection device for plugging installation sectional view designed by the present invention.
Wherein, 1- elevator, 2- is to fixture block A, and 3- is to fixture block B, 4- fastening bolt, 5- elevator fastening nut, 6- otic placode, and 7- is close
Seal strip, 8- branch pipe connection, 9- otic placode lifting hole(eyelet).
Specific embodiment
The technology of the present invention is described further below:
As shown in Figures 1 to 3, a kind of low pressure pipeline branch pipe connection device for plugging, comprising: elevator 1, to fixture block A2, to fixture block
B3, fastening bolt 4, elevator fastening nut 5 and otic placode；It is described to pass through clamping bolt 4 to clamping fixed to fixture block A2 and to fixture block B3
Connection, it is described to fixture block A2 and to otic placode 6 is provided on the outside of fixture block B3, otic placode lifting hole(eyelet) 9 is provided on the otic placode 6；It is described
1 both ends of elevator are penetrated to fixture block A2 and in the otic placode lifting hole(eyelet) 9 of fixture block B3, and are connected and fixed by elevator fastening nut 5.
It is described to fixture block A2 and be T font structure to fixture block B3, to fixture block A2 and to fixture block B3 to folder face center
Be provided with semicircle groove, for placing branch pipe connection 8, the two halves round recessed internal diameter is identical, the semicircle groove internal diameter with
8 outer diameter of branch pipe connection matches.
It is additionally provided between 8 outer diameter of the two halves round recessed and branch pipe connection and compresses sealing strip 7.
The elevator 1 generally U-shaped structure, the both ends of the elevator 1 are equipped with external screw thread.
It is described to fixture block A2 and to spacing between the two otic placode lifting hole(eyelet)s 9 opened up on fixture block B3 and low pressure pipeline outer diameter phase
Match.
4 quantity of fastening bolt is four.
A kind of blocking method of low pressure pipeline branch pipe connection device for plugging as described above, includes the following steps:
Step 1: being pressed on the leak source of branch pipe connection 8 first with sealing joint strip 7, then will be to fixture block A2 and to fixture block
B3 fastens folder using fastening bolt 4；
Step 2: compressing sealing joint strip 7,1 both ends of elevator be then each passed through the otic placode lifting hole(eyelet) 10 on two pairs of fixture blocks, across
Low pressure pipeline branch pipe is crossed, is hung to fixture block A2 and to fixture block B3, then fastens elevator 1 using elevator fastening nut 5, is tensed to folder
Block A2 and to fixture block B3；
Step 3: it recycles fastening bolt 4 to continue fastening to fixture block A2 and to fixture block B3, sealing joint strip 7 is compressed, until disappearing
Except the leakage defect on branch pipe connection 8.
The present invention is explained in detail above in conjunction with embodiment, but the present invention is not limited to above-described embodiments, at this
Field those of ordinary skill within the scope of knowledge, can also make various changes without departing from the purpose of the present invention
Change.The content being not described in detail in the present invention can use the prior art.
Claims (7)
1. a kind of low pressure pipeline branch pipe connection device for plugging, it is characterised in that: including elevator (1), to fixture block A (2), to fixture block B
(3), fastening bolt (4), elevator fastening nut (5) and otic placode (6)；It is described to pass through clamping spiral shell to fixture block A (2) and to fixture block B (3)
Bolt (4) is fixedly connected with folder, described to be provided with otic placode (6) to fixture block A (2) and to the outside fixture block B (3), on the otic placode (6)
It is provided with otic placode lifting hole(eyelet) (9)；Elevator (1) both ends are penetrated to fixture block A (2) and in the otic placode lifting hole(eyelet) (9) of fixture block B (3), and
It is connected and fixed by elevator fastening nut (5).
2. a kind of low pressure pipeline branch pipe connection device for plugging as described in claim 1, it is characterised in that: described to fixture block A (2)
Be T font structure to fixture block B (3), semicircle groove is provided with to folder face center to fixture block A (2) and to fixture block B (3), use
In placing branch pipe connection (8), the two halves round recessed internal diameter is identical, and the semicircle groove internal diameter and branch pipe connection (8) are outside
Diameter matches.
3. a kind of low pressure pipeline branch pipe connection device for plugging as claimed in claim 2, it is characterised in that: the two halves round recessed
It is additionally provided between branch pipe connection (8) outer diameter and compresses sealing strip (7).
4. a kind of low pressure pipeline branch pipe connection device for plugging as claimed in claim 3, it is characterised in that: the elevator (1) is whole
Body is U-shaped structure, and the both ends of the elevator (1) are equipped with external screw thread.
5. a kind of low pressure pipeline branch pipe connection device for plugging as claimed in claim 4, it is characterised in that: described to fixture block A (2)
And match to spacing between the two otic placode lifting hole(eyelet)s (9) opened up on fixture block B (3) with low pressure pipeline outer diameter.
6. a kind of low pressure pipeline branch pipe connection device for plugging as claimed in claim 5, it is characterised in that: the fastening bolt
(4) quantity is four.
7. the blocking method of any low pressure pipeline branch pipe connection device for plugging, special in a kind of claim 1 to 6 as above
Sign is to include the following steps:
Step 1: being pressed on the leak source of branch pipe connection (8) first with sealing joint strip (7), then will be to fixture block A (2) and to folder
Block B (3) fastens folder using fastening bolt (4)；
Step 2: compressing sealing joint strip (7), elevator (1) both ends be then each passed through the otic placode lifting hole(eyelet) (10) on two pairs of fixture blocks,
It across low pressure pipeline branch pipe (6), hangs to fixture block A (2) and to fixture block B (3), is then hung using elevator fastening nut (5) fastening
Block (1), tenses to fixture block A (2) and to fixture block B (3)；
Step 3: it recycles fastening bolt (4) to continue fastening to fixture block A (2) and to fixture block B (3), compresses sealing joint strip (7), directly
To the leakage defect eliminated on branch pipe connection (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471553.XA CN109538875B (en) | 2018-12-04 | 2018-12-04 | Plugging device and plugging method for low-pressure pipeline branch pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811471553.XA CN109538875B (en) | 2018-12-04 | 2018-12-04 | Plugging device and plugging method for low-pressure pipeline branch pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538875A true CN109538875A (en) | 2019-03-29 |
| CN109538875B CN109538875B (en) | 2024-04-09 |
Family
ID=65853643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811471553.XA Active CN109538875B (en) | 2018-12-04 | 2018-12-04 | Plugging device and plugging method for low-pressure pipeline branch pipe joint |
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| Country | Link |
|---|---|
| CN (1) | CN109538875B (en) |
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| CN203860006U (en) * | 2014-04-22 | 2014-10-08 | 长春格瑞特农业装备科技有限公司 | Moving and position adjusting device of dry farmland joint soil preparation machine |
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| Publication number | Publication date |
|---|---|
| CN109538875B (en) | 2024-04-09 |
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