CN104006263A - Leakage hole plugging tool and method - Google Patents
Leakage hole plugging tool and method Download PDFInfo
- Publication number
- CN104006263A CN104006263A CN201410238912.2A CN201410238912A CN104006263A CN 104006263 A CN104006263 A CN 104006263A CN 201410238912 A CN201410238912 A CN 201410238912A CN 104006263 A CN104006263 A CN 104006263A
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- CN
- China
- Prior art keywords
- anchor fluke
- leak hole
- gasket seal
- connecting rod
- cup
- 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
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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
- 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
- F16L55/1715—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 or the sleeve being tightened by hooks, pawls, or other movable members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D90/00—Component parts, details or accessories for large containers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
Abstract
The invention discloses a leakage hole plugging tool and method. The plugging tool comprises a connection rod, a fastener, an anchor jaw structure and a seal gasket. The anchor jaw structure is arranged on the side of the connection rod and is used for penetrating the leakage hole to be clamped on the inner side casing wall. The seal gasket is sleeved on the outside of the connection rod. The fastener is connected with the outside of the connection rod and is in contact with the seal gasket. The plugging method comprises stretching the anchor jaw structure in the contraction state into the leakage hole; releasing the anchor jaw structure when the anchor jaw structure completely enters the leakage hole; screwing the fastener and compressing the seal gasket around the leakage hole; screwing a stop nut. The tool and the method can be applied to the oil delivery pipe and oil storage tank plugging technology, rapid plugging can be performed, and the operation volume is small.
Description
Technical field
The present invention relates to the blocking technology of petroleum transportation pipeline and petroleum storage tank, especially a kind of capping tools of Leak hole, method for blocking.
Background technique
In prior art, head conduit and storage tank containers etc. are the critical facilitys during petroleum and chemical industry is produced, due to reasons such as corrosion or damage from third-parties, and the leakage of can boring a hole of these pipelines and container.The leakage of the media such as petroleum and chemical industry raw material is befouling environment not only, also endangers masses' security of the lives and property.Therefore at pipeline and container, occur when perforation is leaked to rush to repair in time, to reduce loss, to avoid harm.
The repairing instrument that current pipe perforation leaks is mainly clamp band type jig and wrap style fibre-resin composite repairing instrument, and the former is rigidity card, and the latter is flexible card.Rigidity card is generally two symmetrical semicircular cylinders, adopts bolt that two semicircular cylinders are fastening from install pipeline both sides, and pipeline and the container of leakage are carried out to 360 ° of coverings in perforation place, and seal approach is taked at the two ends of jig, make medium-tight interior, cannot leak.Wrap style repairing instrument is that to take the high strength fibres such as carbon fiber or aramid fibre be agent structure, infiltrates after resin pipe ring in perforation place to being wound around some circles, completes the shutoff to perforation.This two classes first-aid clamp is all to complete by apply active force at pipeline external the shutoff that perforation is leaked, and exists following drawback:
1) for guaranteeing jig and pipeline close contact, need one section of pipeline external thermal insulation layer suitable with jig length of 360 ° of ground cleanings, weight coating etc., workload is large;
2) rigidity jig weight is large, needs crane gear to install, and is greater than large-diameter pipeline and container, and the corresponding customized cycle of first-aid clamp is long, does not meet repairing principle;
3) installation procedure is various, needs several professional workforces to operate, and cost is expensive.
Summary of the invention
The technical problem that the present invention solves is to provide a kind of capping tools, method for blocking of Leak hole, can solve problems of the prior art, can realize quick blocking operation, and workload is little.
For solving the problems of the technologies described above, the invention provides a kind of capping tools of Leak hole, it is characterized in that, comprise connecting rod, fastening piece, anchor fluke structure and gasket seal;
Described anchor fluke structure is arranged on the side of described connecting rod, and described anchor fluke structure is used for through Leak hole and is clamped on inner side shell wall, and the clamping force action direction of described anchor fluke structure on the shell wall of described inner side is parallel with the axial direction of described connecting rod; Described anchor fluke structure has shrinks and discharges two states, and during contraction state, it is inner that described anchor fluke structure is positioned at described connecting rod, and during releasing state, described anchor fluke structure extend out to described connecting rod outside and is clamped on the shell wall of described inner side;
Described gasket seal is set in described connecting rod outside, and described gasket seal is used for from Leak hole described in outer side sealing;
Described fastening piece is connected to described connecting rod outside, and contacts with described gasket seal; Described fastening piece is for being pressed on described gasket seal the hull outside of described Leak hole.
The capping tools of above-mentioned Leak hole also can have following features,
Described anchor fluke structure comprises anchor fluke, spring sheet, and described connecting rod is correspondingly provided with mounting groove, and described anchor fluke is connected with described mounting groove by bearing pin; Described spring sheet is arranged between described anchor fluke and described mounting groove;
When described spring sheet shrinks, described anchor fluke rotates into described mounting groove along described bearing pin; When described spring sheet discharges, described anchor fluke ejects described mounting groove along described bearing pin rotation.
The capping tools of above-mentioned Leak hole also can have following features,
Described anchor fluke framework comprises anchor fluke, helical spring, and described connecting rod is correspondingly provided with mounting groove; Described helical spring one end is connected to the bottom of described mounting groove, and the other end connects described anchor fluke;
During described helical spring compression, described anchor fluke vertically enters described mounting groove; When described helical spring discharges, described anchor fluke vertically ejects described mounting groove.
The capping tools of above-mentioned Leak hole also can have following features,
Described connecting rod is double-screw bolt, and described fastening piece is cup type nut;
The cup end of described cup type nut, is threaded with described double-screw bolt, and the rim of a cup of described cup type nut contacts with described gasket seal; Described gasket seal is being provided with circular groove with described rim of a cup contact position, the edge section of described circular groove for holding described rim of a cup.
The capping tools of above-mentioned Leak hole also can have following features,
Described connecting rod is double-screw bolt, and described fastening piece is cup type nut, between described cup type nut and described gasket seal, is provided with annulus, and described annulus inner side is provided with conical cavity;
The first end of described annulus contacts with described gasket seal, and the second end of described annulus contacts with the rim of a cup of described cup type nut, and the cup end of described cup type nut is threaded with described double-screw bolt; Wherein, described gasket seal is being provided with circular groove with described annulus contact position, and the first end internal diameter of described annulus equals the internal diameter of described circular groove, and the second end internal diameter of described annulus is less than the internal diameter of described circular groove.
The capping tools of above-mentioned Leak hole also can have following features,
On the end face that described gasket seal contacts with described Leak hole, offer annular protrusion, the end face that described gasket seal contacts with described Leak hole is curved end or flat end face.
The capping tools of above-mentioned Leak hole also can have following features,
The side of described gasket seal is symmetrically arranged with limit structure, and described limit structure is for limiting described gasket seal in the spinning movement of installation process.
The capping tools of above-mentioned Leak hole also can have following features,
Also comprise retainer nut, described retainer nut is tightened on described connecting rod outside, and contacts with described fastening piece.
Accordingly, the present invention also provides a kind of Leak hole method for blocking that is applied to above-mentioned capping tools, it is characterized in that, comprises
Anchor fluke structure in contraction state is stretched in Leak hole;
When described anchor fluke structure is entered described Leak hole completely, discharge described anchor fluke structure;
Described fastening piece is tightened, and described gasket seal is pressed on around Leak hole;
Described retainer nut is tightened.
Technique scheme of the present invention has following beneficial effect:
1) capping tools provided by the invention adopts mechanical type bolt arrangement, can apply effect from leaking housing both sides, thereby broken through, existingly from pipeline or container shell outside, applies the operational method that active force completes leak stopping; Above-mentioned capping tools is especially applicable to splitting the common blocking methods such as jig, take-up strap and is difficult to the large-scale perforation leakage of disposing;
2) capping tools provided by the invention is rational in infrastructure, does not need to be equipped with special mounting instrument and special setting tool; Weight is light, easy to carry, does not need crane gear when seabed operation; Pipeline and container applicable to various material, comprise the various material such as metal, plastics, composite material, concrete;
3) leak stoppage tool provided by the invention is easy to processing, according to concrete leakage situation, can process the leak stoppage tool for given Leak hole within one day; Do not need to use the tackiness agents such as resin; Can be with press operation, only need operator to avoid earth pressure release, in home, get final product operation, need not reduce system pressure;
4) leak stoppage tool provided by the invention is not subject to the restriction of environmental conditions; The needed pretreatment in leak position is simple, only need to clean out the circular area of leaking 2-4 times of diameter of diameter, especially convenient to submarine pipeline, greatly reduces activity duration and task difficulty; Leak stopping operating process is simple, quick.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, or understand by implementing the present invention.Object of the present invention and other advantages can be realized and be obtained by specifically noted structure in specification, claims and accompanying drawing.
Accompanying drawing explanation
Accompanying drawing is used to provide the further understanding to technical solution of the present invention, and forms a part for specification, is used from explanation technological scheme of the present invention with the application's embodiment one, does not form the restriction to technical solution of the present invention.
Fig. 1 is the first schematic diagram of the embodiment of the present invention;
Fig. 2 is the second schematic diagram of the embodiment of the present invention;
Fig. 3 is anchor fluke releasing state schematic diagram of the present invention;
Fig. 4 is sheet gasket structure schematic diagram of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing, embodiments of the invention are elaborated.It should be noted that, in the situation that not conflicting, the embodiment in the application and the feature in embodiment be combination in any mutually.
As shown in Figure 1, the invention provides a kind of capping tools of Leak hole, specifically can comprise connecting rod 4, fastening piece 3, anchor fluke structure 1 and gasket seal 2; Anchor fluke structure 1 is arranged on the side of connecting rod 4, and anchor fluke structure 1 is for passing Leak hole and being clamped on inner side shell wall, and the clamping force action direction of anchor fluke on the shell wall of inner side is parallel with the axial direction of connecting rod 4; Anchor fluke structure 1 has shrinks and discharges two states, and during contraction state, anchor fluke structure is positioned at connecting rod 4 inside, and during releasing state, anchor fluke structure extend out to connecting rod 4 outsides and is clamped on the shell wall of described inner side; Gasket seal 2 is set in connecting rod 4 outsides, and gasket seal 2 is for from seal leakage hole, outside; Fastening piece 3 is connected to connecting rod 4 outsides, and contacts with gasket seal 2; Fastening piece 3 is for being pressed on gasket seal 2 hull outside of Leak hole.
In specific operation of the present invention, anchor fluke structure 1 can adopt following structure: as shown in Figure 3, anchor fluke structure 1 can comprise anchor fluke, spring sheet 5, and connecting rod 4 is correspondingly provided with mounting groove 6, and anchor fluke is connected with mounting groove 6 by bearing pin; Spring sheet 5 is arranged between anchor fluke and mounting groove 6; Wherein, when spring sheet shrinks, anchor fluke rotates into mounting groove 6 along bearing pin; When spring sheet 5 discharges, anchor fluke ejects mounting groove 6 along bearing pin rotation.
It should be noted that: above-mentioned anchor fluke structure is in concrete installation process, and when connecting rod 4 penetrates in Leak hole from outside to inside, the compressing that anchor fluke is subject to leaking hole wall is adjusted into contraction state automatically, in the groove of droping to the ground on bolt body; When bolt body passes leakage hole wall, the suffered compressing of anchor fluke disappears, and under the elastic force effect of flat spring, anchor fluke is upspring and become vertical state, and then realization clamping operates.
In specific operation of the present invention, anchor fluke structure 1 also can adopt following structure: anchor fluke framework comprises anchor fluke, helical spring, and connecting rod is correspondingly provided with mounting groove; Helical spring one end is connected to the bottom of mounting groove, and the other end connects anchor fluke; Wherein, during helical spring compression, anchor fluke vertically enters mounting groove; When helical spring discharges, anchor fluke vertically ejects mounting groove.
It should be noted that: above-mentioned anchor fluke structure, in concrete installation process, can be first stretches into anchor fluke in Leak hole when the contraction state, again anchor fluke is adjusted into releasing state later, thereby can realizes the clamping operation of anchor fluke when entering Leak hole completely; Above-mentioned state adjustment can compress anchor fluke by baffle plate temporarily, makes anchor fluke in contraction state, when anchor fluke stretches into leak holes completely, then the baffle plate of compression is removed to the state conversion that can realize anchor fluke.
Preferably, in specific operation of the present invention, shown in Fig. 1, Fig. 2; Connecting rod 4 can be selected double-screw bolt, and fastening piece 3 can be selected a glass type nut, and above-mentioned cup type nut has rim of a cup part and bottom of the cup; Wherein, the cup end of cup type nut, is threaded with double-screw bolt, and the rim of a cup of cup type nut contacts with gasket seal 2.The advantage of above-mentioned cup type nut is: by circular rim of a cup part, can realize and the fitting tightly of gasket seal, can form circular sealing area at gasket seal, can effectively guarantee sealing effect.If fastening piece 3 is selected plain nut, plain nut is end contact with contacting of gasket seal; That is, plain nut is by whole end face press seal pad, and it forms the sealing area of nut end face shape at gasket seal.In the situation that screwing force is identical, according to lifting surface area difference, produce different sealing effects; Can clearly learn, the sealing effect of above-mentioned cup type circular sealing area that nut forms is far superior to the sealing effect that plain nut forms end face shape sealing area.Accordingly, gasket seal 2 is being provided with circular groove with rim of a cup contact position, the edge section of circular groove for holding rim of a cup; The rim of a cup part and circular groove mating part of above-mentioned cup type nut, can be convenient to a glass type nut and apply impacting force, can effectively guarantee final sealing effect simultaneously.
As shown in Figure 2, in specific operation of the present invention, can also comprise annulus 8, wherein, the inner side of annulus 8 is provided with conical cavity; The first end of annulus 8 is arranged in circular groove, and the first end internal diameter of annulus 8 equals the internal diameter of circular groove; The second end of annulus 8 contacts with the rim of a cup of cup type nut, and the second end internal diameter of annulus 8 is less than the internal diameter of circular groove.The annulus 8 of above-mentioned conical cavity structure, in fastening piece 3 rundown process, can guarantee that on gasket seal 2, the part area in circular groove is fitted on connecting rod 4 and around Leak hole closely.
Preferably, in specific operation of the present invention, on the end face that gasket seal 2 contacts with Leak hole, can offer annular protrusion 7, above-mentioned annular protrusion 7 can be on the basis of original gasket seal 2 end face seals, increase again one annular protrusion 7 sealing, can effectively guarantee final sealing effect.
In order to adapt to the sealing of different situations, corresponding, the end face that gasket seal 2 contacts with Leak hole is curved end or flat end face; Concrete, when the Leak hole of needs sealing is pipeline leak holes, the end face that gasket seal 2 contacts with Leak hole can be selected curved end; When the Leak hole of needs sealing is tank bottom Leak hole, the end face that gasket seal 2 contacts with Leak hole can be selected flat end face.In order further to strengthen the stability of anchor fluke structure clamping, on the side of connecting rod, can be provided with at least two anchor fluke structures, or can be provided with at least three anchor fluke structures; By being set, a plurality of anchor fluke structures can further improve connective stability.
As shown in Figure 4, preferably, the side of gasket seal 2 is symmetrically arranged with limit structure 9, and limit structure 9 can also start attachment hole; Limit structure 9 can be used for limiting the spinning movement of gasket seal 2 in installation process.In specific operation process, can carry out temporary fixed be connected with the parts that Leak hole can be fixedly connected with around by limit structure, can effectively prevent that fastening piece gasket seal 2 in rundown process from rotating.
Preferably, in specific operation of the present invention, can also comprise retainer nut, retainer nut is tightened on connecting rod outside, and contacts with fastening piece; Above-mentioned retainer nut's installation, can effectively guarantee the stability after fastening piece is tightened.
Accordingly, the present invention also provides a kind of Leak hole method for blocking that is applied to above-mentioned capping tools, specifically comprises: the anchor fluke structure in contraction state is stretched in Leak hole; When anchor fluke structure is entered Leak hole completely, discharge anchor fluke structure; Fastening piece is tightened, and gasket seal is pressed on around Leak hole; Retainer nut is tightened.
Above-mentioned capping tools provided by the invention is a kind ofly to take the perforation that bolt draw bar is main structure and leak rapid rush-repair instrument, belong to a kind of plug-type repairing leak stoppage tool, when carrying out installation exercise, need the pipeline external protection area of cleaning to only limit to Leak hole region among a small circle around; Single is portability, adopts common wrench to install; The present invention is simple in structure, is easy to processing; With low cost.
The present invention is of many uses, the repairing leak stopping that can leak for the housing perforation of the materials such as metal material, resin and composite material quality, concrete material.For the major diameter perforation on clamp band type and the insurmountable large-diameter pipeline of wrap style jig and container, leak and especially there is good result.
Although it is apparent to those skilled in the art that the disclosed mode of execution of the present invention as above, the mode of execution that described content only adopts for ease of understanding the present invention, not in order to limit the present invention.Those of skill in the art under any the present invention; do not departing under the prerequisite of the disclosed spirit and scope of the present invention; can in the form of implementing and details, carry out any modification and variation; but scope of patent protection of the present invention, still must be as the criterion with the scope that appending claims was defined.
Claims (9)
1. a capping tools for Leak hole, is characterized in that, comprises connecting rod, fastening piece, anchor fluke structure and gasket seal;
Described anchor fluke structure is arranged on the side of described connecting rod, and described anchor fluke structure is used for through Leak hole and is clamped on inner side shell wall, and the clamping force action direction of described anchor fluke structure on the shell wall of described inner side is parallel with the axial direction of described connecting rod; Described anchor fluke structure has shrinks and discharges two states, and during contraction state, it is inner that described anchor fluke structure is positioned at described connecting rod, and during releasing state, described anchor fluke structure extend out to described connecting rod outside and is clamped on the shell wall of described inner side;
Described gasket seal is set in described connecting rod outside, and described gasket seal is used for from Leak hole described in outer side sealing;
Described fastening piece is connected to described connecting rod outside, and contacts with described gasket seal; Described fastening piece is for being pressed on described gasket seal the hull outside of described Leak hole.
2. the capping tools of Leak hole according to claim 1, is characterized in that,
Described anchor fluke structure comprises anchor fluke, spring sheet, and described connecting rod is correspondingly provided with mounting groove, and described anchor fluke is connected with described mounting groove by bearing pin; Described spring sheet is arranged between described anchor fluke and described mounting groove;
When described spring sheet shrinks, described anchor fluke rotates into described mounting groove along described bearing pin; When described spring sheet discharges, described anchor fluke ejects described mounting groove along described bearing pin rotation.
3. the capping tools of Leak hole according to claim 1, is characterized in that,
Described anchor fluke framework comprises anchor fluke, helical spring, and described connecting rod is correspondingly provided with mounting groove; Described helical spring one end is connected to the bottom of described mounting groove, and the other end connects described anchor fluke;
During described helical spring compression, described anchor fluke vertically enters described mounting groove; When described helical spring discharges, described anchor fluke vertically ejects described mounting groove.
4. according to the capping tools of the Leak hole described in claim 1 or 2 or 3, it is characterized in that,
Described connecting rod is double-screw bolt, and described fastening piece is cup type nut;
The cup end of described cup type nut, is threaded with described double-screw bolt, and the rim of a cup of described cup type nut contacts with described gasket seal; Described gasket seal is being provided with circular groove with described rim of a cup contact position, the edge section of described circular groove for holding described rim of a cup.
5. according to the capping tools of the Leak hole described in claim 1 or 2 or 3, it is characterized in that,
Described connecting rod is double-screw bolt, and described fastening piece is cup type nut, between described cup type nut and described gasket seal, is provided with annulus, and described annulus inner side is provided with conical cavity;
The first end of described annulus contacts with described gasket seal, and the second end of described annulus contacts with the rim of a cup of described cup type nut, and the cup end of described cup type nut is threaded with described double-screw bolt; Wherein, described gasket seal is being provided with circular groove with described annulus contact position, and the first end internal diameter of described annulus equals the internal diameter of described circular groove, and the second end internal diameter of described annulus is less than the internal diameter of described circular groove.
6. according to the capping tools of the Leak hole described in claim 1 or 2 or 3, it is characterized in that,
On the end face that described gasket seal contacts with described Leak hole, offer annular protrusion, the end face that described gasket seal contacts with described Leak hole is curved end or flat end face.
7. according to the capping tools of the Leak hole described in claim 1 or 2 or 3, it is characterized in that,
The side of described gasket seal is symmetrically arranged with limit structure, and described limit structure is for limiting described gasket seal in the spinning movement of installation process.
8. according to the capping tools of the Leak hole described in claim 1 or 2 or 3, it is characterized in that,
Also comprise retainer nut, described retainer nut is tightened on described connecting rod outside, and contacts with described fastening piece.
9. a Leak hole method for blocking that is applied to the capping tools described in claim 1-8, is characterized in that, comprises
Anchor fluke structure in contraction state is stretched in Leak hole; When described anchor fluke structure is entered described Leak hole completely, discharge described anchor fluke structure; Described fastening piece is tightened, and described gasket seal is pressed on around Leak hole; Described retainer nut is tightened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410238912.2A CN104006263B (en) | 2014-05-30 | 2014-05-30 | A kind of capping tools of Leak hole, method for blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410238912.2A CN104006263B (en) | 2014-05-30 | 2014-05-30 | A kind of capping tools of Leak hole, method for blocking |
Publications (2)
| Publication Number | Publication Date |
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| CN104006263A true CN104006263A (en) | 2014-08-27 |
| CN104006263B CN104006263B (en) | 2016-01-27 |
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| CN201410238912.2A Active CN104006263B (en) | 2014-05-30 | 2014-05-30 | A kind of capping tools of Leak hole, method for blocking |
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| CN109173472A (en) * | 2018-10-26 | 2019-01-11 | 浙江鸿盛环保科技集团有限公司 | Closeouts, filter bag of dust collector automatic plugging system and deduster |
| CN110220068A (en) * | 2019-04-23 | 2019-09-10 | 阳江核电有限公司 | Nuclear piping leak stoppage tool and method |
| CN112283474A (en) * | 2020-11-11 | 2021-01-29 | 徐文罗 | Quick connecting device of pipeline for bio-pharmaceuticals |
| CN113479504A (en) * | 2021-07-02 | 2021-10-08 | 黎绪强 | Plugging device is used in transportation of hazardous chemicals |
| CN113685650A (en) * | 2021-08-16 | 2021-11-23 | 胡沛辰 | Plugging device of petroleum pipeline |
| CN113983277A (en) * | 2021-10-26 | 2022-01-28 | 王志海 | High-pressure pipeline leaking stopper with good plugging effect |
| CN114135727A (en) * | 2021-12-02 | 2022-03-04 | 江苏益诚精密器件科技有限公司 | Fluid connector used in high-pressure environment and convenient to pull and plug |
| CN115076509A (en) * | 2022-07-18 | 2022-09-20 | 根河光明热电有限责任公司 | Interim plugging device of large-scale pipeline |
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| CN109173472B (en) * | 2018-10-26 | 2024-02-02 | 浙江鸿盛新材料科技集团股份有限公司 | Blocking piece, automatic blocking system of dust remover filter bag and dust remover |
| CN110220068A (en) * | 2019-04-23 | 2019-09-10 | 阳江核电有限公司 | Nuclear piping leak stoppage tool and method |
| CN112283474A (en) * | 2020-11-11 | 2021-01-29 | 徐文罗 | Quick connecting device of pipeline for bio-pharmaceuticals |
| CN113479504A (en) * | 2021-07-02 | 2021-10-08 | 黎绪强 | Plugging device is used in transportation of hazardous chemicals |
| CN113685650A (en) * | 2021-08-16 | 2021-11-23 | 胡沛辰 | Plugging device of petroleum pipeline |
| CN113983277A (en) * | 2021-10-26 | 2022-01-28 | 王志海 | High-pressure pipeline leaking stopper with good plugging effect |
| CN113983277B (en) * | 2021-10-26 | 2023-05-05 | 广东中创南岭环境科技有限公司 | High-pressure pipeline plugging device with good plugging effect |
| CN114135727A (en) * | 2021-12-02 | 2022-03-04 | 江苏益诚精密器件科技有限公司 | Fluid connector used in high-pressure environment and convenient to pull and plug |
| CN114135727B (en) * | 2021-12-02 | 2022-08-26 | 江苏益诚精密器件科技有限公司 | Fluid connector used in high-pressure environment and convenient to pull and plug |
| CN115076509A (en) * | 2022-07-18 | 2022-09-20 | 根河光明热电有限责任公司 | Interim plugging device of large-scale pipeline |
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|---|---|
| CN104006263B (en) | 2016-01-27 |
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