CN104214466A - Under-pressure leakage-stopping method for middle/low-pressure low-temperature pipeline - Google Patents
Under-pressure leakage-stopping method for middle/low-pressure low-temperature pipeline Download PDFInfo
- Publication number
- CN104214466A CN104214466A CN201410417944.9A CN201410417944A CN104214466A CN 104214466 A CN104214466 A CN 104214466A CN 201410417944 A CN201410417944 A CN 201410417944A CN 104214466 A CN104214466 A CN 104214466A
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- CN
- China
- Prior art keywords
- pipe nipple
- leakage
- saddle pipe
- saddle
- short section
- 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.)
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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
- F16L55/1683—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of a patch which is fixed on the wall of the pipe by means of an adhesive, a weld or the like
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention discloses an under-pressure leakage-stopping method for a middle/low-pressure low-temperature pipeline. The middle/low-pressure low-temperature pipeline comprises a saddle short section, a plugging plate, an asbestos gasket and a connecting bolt, wherein a flange structure is arranged at one end of the saddle short section; a cylinder with an arch-shaped structure is arranged at the other end of the saddle short section; the plugging plate is of disc shape, is connected with the flange structure end of the saddle short section through the asbestos gasket and is fastened and sealed by using the connecting bolt; the arch-shaped structure end of the saddle short section is welded with the periphery of a pipe wall taking a leaking point of a leaking pipeline as a center of circle; the prepared saddle short section sleeves the periphery of the leaking point, and the saddle short section is in tight contact with the leaking pipe and then is welded or a wood wedge is used for firstly stopping leakage of the leakage point according to the difference of the flow of a medium; lastly, the plugging plate, the asbestos gasket and the flange are fastened till the pipe does not leak. The structure and the method are adopted, so that the method has the advantages that the structure is simple, the leakage-stopping effect is good, the time is saved, and the overhaul work efficiency is increased.
Description
Technical field
The present invention relates to thermal power plant's pipe plugging loop technique field, particularly a kind of mesolow cryogenic piping pressurized leaking stoppage method.
Background technique
In the running of enterprise, be unable to do without connection and the fed sheet of a media of mesolow pipeline, mesolow pipeline is the important pivot of enterprise.The safe operation of Ta Dui enterprise and Economy have larger impact, due to other reason of the corrosion of aging, the medium of for a long time operation, tubing and some, in conduit running process, keep away unavoidably and will leak, in some important device systems, inactive system may impact safe long-term operation and the Economy of enterprise, so, will be in the situation that not stopping using system equipment safety leakage point is carried out to pressure sealing; Therefore pressure sealing just seems particularly important in the service work of enterprise.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, and provide a kind of simple in structure, can in the situation that moving, mesolow cryogenic piping carry out leak stopping to leakage point, be specially adapted to the leak stopping within the scope of 3 o'clock to 9 o'clock directions of pipeline, this installation cost is cheap, can be widely used in the pressure sealing operation of waterpipe, feed channel and the non-inflammable and explosive medium pipeline of mesolow low temperature.
To achieve these goals, the invention provides following technological scheme: a kind of mesolow cryogenic piping pressurized leaking stoppage method, it comprises: saddle pipe nipple, closure plate, asbestos washer, connecting bolt, wherein: saddle pipe nipple is that one end is provided with flange arrangement, the cylindrical body that its other end is arch structure; Described closure plate is discoid, is connected, and uses connecting bolt fit sealing by asbestos washer with the flange arrangement end of saddle pipe nipple; The tube wall circumference soldering that the leak source of the arch structure end of described saddle pipe nipple and leakage pipeline is the center of circle.
The method of mesolow cryogenic piping pressure sealing, the steps include:
1, saddle pipe nipple will be according to the diameter of the leakage pipe saddle pipe nipple that places under repair, and it is tight that the surface of contact of saddle pipe nipple and leakage pipe is wanted; The diameter of saddle pipe nipple is selected according to the pressure of leakage point medium and flow, and diameter had better not surpass 219mm, and height can be enclosed within around leakage point not by medium contact as good with saddle pipe nipple; The size of closure plate and thin and thick will be selected according to the orchid dish on saddle pipe nipple, to guarantee the needs of working pressure; The making of asbestos washer can be made according to the size dimension of orchid dish, to guarantee the sealing of junction plane between blue dish and closure plate.
2, ready saddle pipe nipple is enclosed within around leakage point, saddle pipe nipple welds after tightly contacting with the female pipe of leakage, or with timber wedge, leakage point is carried out to leak stopping for the first time according to the flow of medium is different; Finally closure plate, asbestos washer and blue dish are carried out fastening until do not leak.
Owing to adopting said structure and method, the present invention has: simple in structure, plugging effect is good, has saved time not only but also improved the working efficiency of maintenance simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Technological scheme for a better understanding of the present invention, describes embodiment provided by the invention in detail below in conjunction with accompanying drawing.
Fig. 1 is optimal way of the present invention, it has shown mesolow cryogenic piping tape-pressure leakage clogging device and method, it comprises: saddle pipe nipple 2, closure plate 3, asbestos washer 5, connecting bolt 4, wherein: saddle pipe nipple 2 is for one end is provided with flange arrangement, the cylindrical body that its other end is arch structure; Described closure plate 3 is discoid, by asbestos washer 5, is connected with the flange arrangement end of saddle pipe nipple 2, and with connecting bolt 4 fit sealings; The tube wall circumference soldering that the leak source of the arch structure end of described saddle pipe nipple 2 and leakage pipeline 1 is the center of circle.
The method of mesolow cryogenic piping pressure sealing, the steps include:
1, saddle pipe nipple will be according to the diameter of the leakage pipe saddle pipe nipple that places under repair, and it is tight that the surface of contact of saddle pipe nipple and leakage pipe is wanted; The diameter of saddle pipe nipple is selected according to the pressure of leakage point medium and flow, and diameter had better not surpass 219mm, and height can be enclosed within around leakage point not by medium contact as good with saddle pipe nipple; The size of closure plate and thin and thick will be selected according to the orchid dish on saddle pipe nipple, to guarantee the needs of working pressure; The making of asbestos washer can be made according to the size dimension of orchid dish, to guarantee the sealing of junction plane between blue dish and closure plate.
2, ready saddle pipe nipple is enclosed within around leakage point, saddle pipe nipple welds after tightly contacting with the female pipe of leakage, or different according to the flow of medium, with timber wedge, leakage point is carried out to leak stopping for the first time; Finally closure plate, asbestos washer and blue dish are carried out fastening until do not leak.
The making of saddle pipe nipple must contact well with leaking female pipe, more tightly better, is beneficial to welding; Selecting of saddle short circuit will and highly be selected according to leakage point flow, take and by leaking medium, do not contacted as good.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be treated as protection scope of the present invention.
Claims (2)
1. a mesolow cryogenic piping pressurized leaking stoppage method, its leakage-baffling device comprises: saddle pipe nipple (2), closure plate (3), asbestos washer (5), connecting bolt (4), it is characterized in that: described saddle pipe nipple (2) is for one end is provided with flange arrangement the cylindrical body that its other end is arch structure; Described closure plate (3) is discoid, by asbestos washer (5), is connected with the flange arrangement end of saddle pipe nipple (2), and with connecting bolt (4) fit sealing; The tube wall circumference soldering that the leak source of the arch structure end of described saddle pipe nipple (2) and leakage pipeline (1) is the center of circle.
2. a kind of mesolow cryogenic piping pressurized leaking stoppage method according to claim 1, described method comprises the steps: 1), saddle pipe nipple will be according to the diameter of the leakage pipe saddle pipe nipple that places under repair, it is tight that the surface of contact of saddle pipe nipple and leakage pipe is wanted; The diameter of saddle pipe nipple is selected according to the pressure of leakage point medium and flow, and diameter had better not surpass 219mm, and height can be enclosed within around leakage point not by medium contact as good with saddle pipe nipple; The size of closure plate and thin and thick will be selected according to the orchid dish on saddle pipe nipple, to guarantee the needs of working pressure; The making of asbestos washer can be made according to the size dimension of orchid dish, to guarantee the sealing of junction plane between blue dish and closure plate;
2), ready saddle pipe nipple is enclosed within around leakage point, saddle pipe nipple welds with leaking after female pipe tightly contact, or according to the flow difference of medium, with timber wedge, leakage point is carried out to leak stopping for the first time; Finally closure plate, asbestos washer and blue dish are carried out fastening until do not leak.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410417944.9A CN104214466A (en) | 2014-08-16 | 2014-08-16 | Under-pressure leakage-stopping method for middle/low-pressure low-temperature pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410417944.9A CN104214466A (en) | 2014-08-16 | 2014-08-16 | Under-pressure leakage-stopping method for middle/low-pressure low-temperature pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104214466A true CN104214466A (en) | 2014-12-17 |
Family
ID=52096238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410417944.9A Pending CN104214466A (en) | 2014-08-16 | 2014-08-16 | Under-pressure leakage-stopping method for middle/low-pressure low-temperature pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104214466A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964121A (en) * | 2015-07-28 | 2015-10-07 | 中建八局第四建设有限公司 | Blockage method for leakage water in sleeve pipe |
| CN106382412A (en) * | 2016-09-23 | 2017-02-08 | 广东核电合营有限公司 | Pressure sealing method of leakage in primary loop small-diameter valve of nuclear power plant |
-
2014
- 2014-08-16 CN CN201410417944.9A patent/CN104214466A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964121A (en) * | 2015-07-28 | 2015-10-07 | 中建八局第四建设有限公司 | Blockage method for leakage water in sleeve pipe |
| CN106382412A (en) * | 2016-09-23 | 2017-02-08 | 广东核电合营有限公司 | Pressure sealing method of leakage in primary loop small-diameter valve of nuclear power plant |
| CN106382412B (en) * | 2016-09-23 | 2019-02-26 | 广东核电合营有限公司 | On-line pressure sealant method is leaked in one loop of nuclear power station smaller diameter valve |
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Legal Events
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141217 |
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| WD01 | Invention patent application deemed withdrawn after publication |