CN110375149B - Tank bottom connecting pipe corner sand hole leakage stopping device and application thereof - Google Patents
Tank bottom connecting pipe corner sand hole leakage stopping device and application thereof Download PDFInfo
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- CN110375149B CN110375149B CN201910606155.2A CN201910606155A CN110375149B CN 110375149 B CN110375149 B CN 110375149B CN 201910606155 A CN201910606155 A CN 201910606155A CN 110375149 B CN110375149 B CN 110375149B
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- ejector rod
- connecting pipe
- tank bottom
- corner
- sand hole
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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
- F16L55/1705—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 with a substantially radial tightening member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
- Pipe Accessories (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention relates to the field of pipeline sand hole plugging devices, in particular to a sand hole plugging device at a corner of a connecting pipe at a tank bottom and application thereof. The method comprises the following steps: the connecting device comprises a sealing gasket, a connecting pipe, an ejector rod nut, an ejector rod fixing device and a clamp assembly, wherein the ejector rod is of a rod-shaped structure, threads are arranged on the outer surface of the ejector rod, the ejector rod nut is screwed on the ejector rod through the threads, the connecting pipe is sleeved on the ejector rod after one end of the ejector rod extends into one end of the connecting pipe, the connecting pipe can freely move on the ejector rod, and the sealing gasket is arranged at the other end of the connecting pipe; the other end of the ejector rod can be matched with the ejector rod fixing device, so that the ejector rod is fixed on the hoop component, and the hoop component can be fixed on the tank bottom connecting pipe. The invention designs a special tool to apply external force outside the leakage point of the fillet weld sand hole, thereby achieving the purpose of online leak stoppage and well solving the problem that the existing leak stoppage device can not perform leak stoppage on the sand hole at the corner of the connecting pipe at the bottom of the tank.
Description
Technical Field
The invention relates to the field of pipeline sand hole plugging devices, in particular to a sand hole plugging device at a corner of a connecting pipe at a tank bottom and application thereof.
Background
This information disclosed in this background of the invention is only for the purpose of increasing an understanding of the general background of the invention and is not necessarily to be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
In chemical production, the sand holes of the production device often cause medium leakage, and for this reason, various tools are designed to facilitate the leakage stoppage of the sand holes, for example, patent document 201620735275.4 discloses a jacking type pipeline sand hole leakage stoppage device, which uses an adjustable steel belt to quickly position a jacking bolt above the leakage point of a pipeline, uses a plane bearing to realize the rotation of a nut, and applies jacking force to a sealing gasket between the sand holes and the bolt in a relatively static manner of the bolt to realize the temporary leakage stoppage of the sand holes. For another example, patent document 201721270950.1 provides a bridge type magnetic adsorption pipeline sand hole plugging device, which includes a connecting rod, two connecting rod joints and a pressing bolt, wherein the two connecting rod joints are symmetrically disposed at two ends of the connecting rod, the lower end of the connecting rod joint is connected with a magnet, the connecting rod is provided with a bolt hole, and the pressing bolt penetrates through the bolt hole to press a sealing gasket at the sand hole position. The device simple to operate can carry out quick leaking stoppage to the sand hole, and efficiency is higher.
However, the inventors found that: because the corner of the connecting pipe at the bottom of the tank is usually formed after welding, sand holes are more easily formed at the corner of the connecting pipe at the bottom of the tank such as a tower, a tank and the like, and the existing leakage stopping devices are not suitable for the sand holes at the positions, so that the production line can only be stopped and repaired when the sand holes appear at the positions, but the production cycle of products is delayed, a series of problems such as transfer, storage and the like of production raw materials can also be shot, and serious inconvenience is brought to production, namely, the existing leakage stopping devices cannot perform online leakage stopping on the sand holes appearing at the corner of the connecting pipe at the bottom of the tank such as the tower, the tank and the like in an online running chemical system.
Disclosure of Invention
Aiming at the problems, the invention aims to provide a tank bottom connecting pipe corner sand hole plugging device and application thereof. The invention designs a special tool to apply external force to achieve the purpose of online leak stoppage outside the leakage point of the fillet weld sand hole, and well solves the defects of the existing leak stoppage device.
The invention aims to provide a tank bottom connecting pipe corner sand hole plugging device.
The invention also provides an application of the sand hole plugging device at the corner of the tank bottom connecting pipe.
In order to realize the purpose, the invention discloses the following technical scheme:
firstly, the invention discloses a tank bottom connecting pipe corner sand hole plugging device, which comprises: sealing pad, connecting pipe, ejector pin nut, ejector pin fixing device and clamp subassembly, wherein:
the ejector rod is of a rod-shaped structure, threads are arranged on the outer surface of the ejector rod, the ejector rod nut is screwed on the ejector rod through the threads, the connecting pipe is sleeved on the ejector rod after one end of the ejector rod extends into one end of the connecting pipe, the connecting pipe can freely move on the ejector rod, and the sealing gasket is arranged at the other end of the connecting pipe; the other end of the ejector rod can be matched with the ejector rod fixing device, the ejector rod is further fixed on the hoop component, and the hoop component can be fixed on the tank bottom connecting pipe, so that supporting force is provided for leaking stoppage of the sand holes.
As a further technical scheme, the sealing gasket is detachably arranged on the connecting pipe, so that the sealing gasket can be replaced according to needs, for example, according to the size of the sand hole.
As a further technical scheme, the sealing gasket is an ejector pin, and the area of the ejector pin is larger than that of the sand hole, so that leakage stoppage of the sand hole is facilitated.
As a further technical scheme, the thimble includes sealed end and stiff end, sealed end can be packed in the port of connecting pipe to realize the setting dismantled between thimble and the connecting pipe.
As a further technical scheme, the ejector rod fixing device detachably fixes the ejector rod on the hoop component, so that leakage stoppage can be realized for sand holes at different positions by adjusting the deviation degree of the ejector rod relative to the hoop component.
As a further technical scheme, ejector pin fixing device is first bolt and first nut, all be provided with first screw on the other end of ejector pin and the clamp subassembly, rethread first nut after first screw is passed to first bolt can dismantle the ejector pin and fix on the clamp subassembly.
As a further aspect, the clip assembly comprises: the support part, the first hoop sleeve and the second hoop sleeve are of circular arc structures, the first hoop sleeve and the second hoop sleeve are combined to form an annular hoop, one end of the support part is fixedly connected to one hoop sleeve, and the first screw hole is formed in the support part; the clamp assembly is beneficial to being quickly fixed on a tank bottom connecting pipe, saves the online leakage stopping time and reduces the leakage as much as possible.
As a further technical scheme, the first hoop cover and the second hoop cover are combined and then detachably fixed together through a second bolt and a second nut, and the first hoop cover and the second hoop cover are both provided with second screw holes for the second bolt to pass through.
Finally, the invention discloses application of the tank bottom connecting pipe corner sand hole plugging device in the chemical field.
One of the characteristics of the sand hole plugging device at the corner of the tank bottom connecting pipe of the invention is as follows: when the reaction tank leaks due to the occurrence of the sand hole at the corner of the tank bottom connecting pipe, the annular hoop is formed by separating two groups of hoops, when the reaction tank leakage stopping device is used, the tank bottom connecting pipe is clamped between the first hoop and the second hoop, then the first hoop and the second hoop are fixed together, the leakage stopping device is quickly fixed at a proper position on the tank bottom connecting pipe, then the deviation degree of the ejector rod relative to the hoop component is adjusted through the ejector rod fixing device, so that one end of the ejector rod, provided with the sealing gasket, is aligned with the sand hole, and the position alignment stage is completed; then, the ejector rod nut is rotated, the movement of the connecting pipe is controlled through the movement of the ejector rod nut on the ejector rod, the upper sealing gasket of the connecting pipe is adjusted to the position of the sand hole, further, the sealing gasket continuously exerts external force on the sand hole through the transmission of the ejector rod nut, the sealing material is tightly attached to the surface of the sand hole under the pressure of the sealing gasket to form a sealing layer, the external force is continuously increased until the leakage point is not leaked, and therefore online leakage stoppage is achieved. Because the hoop component fixed on the tank bottom connecting pipe provides stable and sufficient supporting force for the whole leakage stopping device by means of the tank bottom connecting pipe, the leakage stopping device not only can realize online leakage stopping without stopping, but also has stable and lasting leakage stopping effect.
The invention relates to a tank bottom connecting pipe corner sand hole plugging device, which is characterized in that: the leakage stoppage device is specially used for sand holes at the corners of the tank bottom connecting pipes, and the leakage stoppage of the sand holes at the positions cannot be realized because the position is special and a common leakage stoppage device is completely unsuitable.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention designs a special tool to apply external force (can also be matched with leakage-stopping glue) outside the leakage point of the fillet weld sand hole to achieve the purpose of online leakage stopping, and well solves the problem that the existing leakage stopping device can not stop the sand hole at the corner of the tank bottom connecting pipe.
(2) The leakage blocking device is not only suitable for the initial leakage stage of the low-pressure container, but also has good effect, and effectively reduces the occurrence of environmental protection accidents and safety accidents; particularly, for the condition that the pipeline and the tank bottom are eccentric, the leakage stoppage device can also effectively realize leakage stoppage, and has strong working condition adaptability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
Fig. 1 is an exploded view of a structure of a hole plugging device at a corner of a tank bottom connection pipe in embodiment 1 of the present invention.
Fig. 2 is an assembly view of a sand hole plugging device at a corner of a tank bottom connection pipe in embodiment 1 of the present invention.
Fig. 3 is a schematic structural diagram of a connection pipe in embodiment 1 of the present invention.
Fig. 4 is an exploded view of the structure of a hole plugging device at the corner of a tank bottom connection pipe in embodiment 2 of the present invention.
Fig. 5 is a schematic structural view of a jack in embodiment 3 of the present invention.
Fig. 6 is a schematic structural view of a ferrule assembly according to embodiment 3 of the present invention.
Fig. 7 is a schematic structural view of a blowhole plugging device at a corner of a tank bottom connection pipe in embodiment 3 of the present invention.
Fig. 8 is an explosion schematic view of a sand hole plugging device at a corner of a tank bottom connecting pipe in embodiment 4 of the invention.
Fig. 9 is a schematic structural view of a ferrule assembly according to embodiment 4 of the present invention.
Fig. 10 is a schematic structural view of the thimble in embodiment 5 of the present invention.
Fig. 11 is a schematic view of a state of use of a hole plugging device at a corner of a tank bottom connection pipe in embodiment 6 of the present invention.
The reference numerals in the drawings denote: 1-sealing gasket, 2-connecting pipe, 3-ejector rod, 4-ejector rod nut, 5-ejector rod fixing device, 6-hoop component, 7-tank bottom, 8-tank bottom connecting pipe, 5.1-first bolt, 5.2-first nut, 5.3-first screw hole, 6.1-supporting part, 6.2-first hoop sleeve, 6.3-second hoop sleeve, 6.4-second bolt, 6.5-second nut and 6.6-second screw hole.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As described in the background art, some conventional plugging devices cannot perform online plugging on sand holes appearing at the corners of connecting pipes at the bottoms of tanks such as towers, tanks and tanks in an online-running chemical system. Therefore, the invention provides a leak stopping device for sand holes at the corner of a tank bottom connecting pipe, which is further described by combining the attached drawings and the specific embodiment.
Example 1
A tank bottom connecting pipe corner sand hole plugging device comprises: sealing pad 1, connecting pipe 2, ejector pin 3, ejector pin nut 4, ejector pin fixing device 5 and clamp subassembly 6, wherein:
the ejector rod 3 is of a rod-shaped structure, threads are arranged on the outer surface of the ejector rod 3, the ejector rod nut 4 is screwed on the ejector rod through the threads, one end of the ejector rod 3 extends into one end of the connecting pipe 2, then the connecting pipe is sleeved on the ejector rod 3, the connecting pipe 2 can freely move on the ejector rod 3, and the sealing gasket 1 is arranged at the other end of the connecting pipe 2; the other end of the ejector rod 3 can be matched with the ejector rod fixing device 5, the ejector rod 3 is further fixed on the hoop component 6, and the hoop component 6 can be fixed on the tank bottom connecting pipe, so that supporting force is provided for leaking stoppage of sand holes.
Example 2
The utility model provides a tank bottoms takeover angle department hole plugging device, with embodiment 1, the difference lies in: referring to fig. 4 and 5, the ejector rod fixing device 5 is a first bolt 5.1 and a first nut 5.2, the other end of the ejector rod 3 and the hoop component 6 are both provided with a first screw hole 5.3, and the ejector rod 3 is detachably fixed on the hoop component 6 through the first nut 5.2 after the first bolt 5.1 passes through the first screw hole 5.3; therefore, the leaking stoppage of the sand holes at different positions can be realized by adjusting the deviation degree of the ejector rod 3 relative to the hoop component 6.
Example 3
The utility model provides a tank bottoms takeover angle department hole plugging device, with embodiment 1, the difference lies in: referring to fig. 6 and 7, the clip assembly 6 includes: the supporting part comprises a supporting part 6.1, a first hoop sleeve 6.2 and a second hoop sleeve 6.3, wherein the first hoop sleeve 6.2 and the second hoop sleeve 6.3 are both of circular arc structures, the circular arc structures are combined to form an annular hoop, one end of the supporting part 6.1 is fixedly connected to the first hoop sleeve 6.2, and a first screw hole 5.3 is formed in the supporting part 6.1; the clamp assembly is beneficial to being quickly fixed on a tank bottom connecting pipe, saves the online leakage stopping time and reduces the leakage as much as possible.
Example 4
The utility model provides a tank bottoms takeover angle department hole plugging device, with embodiment 3, the difference lies in: referring to fig. 8 and 9, the first ferrule 6.2 and the second ferrule 6.3 are combined and then detachably fixed together by a second bolt 6.4 and a second nut 6.5, and a second threaded hole 6.6 for passing the second bolt 6.4 is formed in each of the first ferrule 6.2 and the second ferrule 6.3.
Example 5
The utility model provides a tank bottoms takeover angle department hole plugging device, with embodiment 1, the difference lies in: referring to fig. 10, sealed 1 of filling up is the thimble, the thimble includes sealed end 1.1 and stiff end 1.2, sealed end 1.1 sets up on stiff end 1.2, just the stiff end 1.2 of thimble is clogged in the port of connecting pipe 2 to realize the setting of dismantling between thimble and the connecting pipe 2, sealed end 1.1's area is greater than the area of trachoma.
Example 6
The basic use principle of the sand hole plugging device at the corner of the connecting pipe at the bottom of the tank in the embodiment 1 is as follows: referring to fig. 11, when a hole appears at the corner of the tank bottom connecting pipe 8 to cause leakage of the tank bottom 7, because the annular hoop is formed by separating two sets of hoops, when in use, the tank bottom connecting pipe 8 is clamped between the first hoop 6.2 and the second hoop 6.3, and then the first hoop and the second hoop are fixed together, so that the leakage blocking device described in embodiment 1 is quickly fixed at a proper position on the tank bottom connecting pipe 8, and then the deviation degree of the ejector rod 3 relative to the hoop assembly 6 is adjusted by the ejector rod fixing device 5, so that the end of the ejector rod 3 provided with the sealing gasket is aligned with the hole, and the position alignment stage is completed; then, the ejector rod nut 4 is rotated, the connecting pipe 2 is controlled to move through the movement of the ejector rod nut 4 on the ejector rod 3, the sealing gasket 1 on the connecting pipe 2 is adjusted to the position of the sand hole, further, external force is continuously applied to the sand hole by the sealing gasket 1 through the transmission of the ejector rod nut 4, the sealing material is tightly attached to the surface of the sand hole under the pressure of the sealing gasket 1 to form a sealing layer, the external force is continuously increased until the leakage point is not leaked, and therefore online leakage stoppage is achieved. Because the hoop component 6 fixed on the tank bottom connecting pipe 8 provides stable and sufficient supporting force for the whole leakage stopping device by means of the tank bottom connecting pipe 8, the online leakage stopping without stopping can be realized, and the leakage stopping effect is stable and lasting.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a tank bottoms take over corner department hole leak stoppage device, its characterized in that includes: sealing pad, connecting pipe, ejector pin nut, ejector pin fixing device and clamp subassembly, wherein:
the ejector rod is of a rod-shaped structure, threads are arranged on the outer surface of the ejector rod, the ejector rod nut is screwed on the ejector rod through the threads, the connecting pipe is sleeved on the ejector rod after one end of the ejector rod extends into one end of the connecting pipe, the connecting pipe can freely move on the ejector rod, and the sealing gasket is arranged at the other end of the connecting pipe; the other end of the ejector rod can be matched with an ejector rod fixing device, so that the ejector rod is fixed on a hoop component, and the hoop component can be fixed on a tank bottom connecting pipe to provide a supporting force for plugging of sand holes;
the ejector rod fixing device is a first bolt and a first nut, the other end of the ejector rod and the clamp assembly are both provided with a first screw hole, and the ejector rod is detachably fixed on the clamp assembly through the first nut after the first bolt penetrates through the first screw hole;
the clip assembly includes: supporting part, first cuff and second cuff are the convex structure, constitute annular clamp after both merge, the one end fixed connection of supporting part is on one of them cuff, and first screw sets up on the supporting part.
2. The bottom joint pipe corner sand hole plugging device of claim 1, wherein the gasket is detachably arranged on the joint pipe.
3. The tank bottom connecting pipe corner sand hole plugging device of claim 2, wherein the sealing gasket is a thimble, and the area of the thimble is larger than that of the sand hole.
4. The apparatus for plugging blisters at the corner of a can bottom connection pipe of claim 3, wherein said thimble comprises a sealing end and a fixing end, said sealing end being capable of being plugged into the port of the connection pipe.
5. The tank bottom connecting pipe corner sand hole plugging device as claimed in claim 1, wherein said first and second ferrules are combined and then detachably fixed together by a second bolt and a second nut, and said first and second ferrules are provided with a second screw hole for the second bolt to pass through.
6. The use of the sand hole plugging device at the corner of a tank bottom connecting pipe as claimed in any one of claims 1 to 5 in the chemical industry field.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606155.2A CN110375149B (en) | 2019-07-05 | 2019-07-05 | Tank bottom connecting pipe corner sand hole leakage stopping device and application thereof |
| PCT/CN2020/081263 WO2021004094A1 (en) | 2019-07-05 | 2020-03-26 | Leak stopping device for sand hole at tank bottom connecting pipe corner and application thereof |
| AU2020310223A AU2020310223B2 (en) | 2019-07-05 | 2020-03-26 | Plugging device for blowhole at corner of tank bottom joint pipe and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910606155.2A CN110375149B (en) | 2019-07-05 | 2019-07-05 | Tank bottom connecting pipe corner sand hole leakage stopping device and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110375149A CN110375149A (en) | 2019-10-25 |
| CN110375149B true CN110375149B (en) | 2021-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910606155.2A Active CN110375149B (en) | 2019-07-05 | 2019-07-05 | Tank bottom connecting pipe corner sand hole leakage stopping device and application thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN110375149B (en) |
| AU (1) | AU2020310223B2 (en) |
| WO (1) | WO2021004094A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375149B (en) * | 2019-07-05 | 2021-08-13 | 兖矿鲁南化工有限公司 | Tank bottom connecting pipe corner sand hole leakage stopping device and application thereof |
| CN114001233B (en) * | 2021-11-01 | 2023-10-13 | 内蒙古双欣环保材料股份有限公司 | Pressurized plugging device |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB134426A (en) * | 1918-12-31 | 1919-11-06 | John Richard Baines | A Device for Repairing Leakages in Pipes or Tubes. |
| CN2444104Y (en) * | 2000-11-08 | 2001-08-22 | 居焕兴 | Leaking stoppage device for loophole with press |
| CN201100507Y (en) * | 2007-11-19 | 2008-08-13 | 桐昆集团浙江恒盛化纤有限公司 | A novel steam three-pass leakage blocking industrial device |
| CN204062318U (en) * | 2014-08-25 | 2014-12-31 | 沪东中华造船(集团)有限公司 | A kind of pipeline emergent sealing leak stoppage tool |
| KR101736450B1 (en) * | 2015-06-30 | 2017-05-30 | 주식회사 픽슨 | Pipeline repair and maintenance of the pipeline coupling structure combined device |
| CN205026299U (en) * | 2015-08-21 | 2016-02-10 | 中国石油天然气股份有限公司 | Pipeline multidirectional mending-leakage device |
| CN205882543U (en) * | 2016-06-20 | 2017-01-11 | 国家电网公司 | Local leaking stoppage folder that leaks |
| CN207005562U (en) * | 2017-07-31 | 2018-02-13 | 攀钢集团工程技术有限公司 | Pipeline Leakage Point obturator |
| CN207455048U (en) * | 2017-10-24 | 2018-06-05 | 陕西北元化工集团股份有限公司 | A kind of Pipe leakage stopper |
| CN208546654U (en) * | 2018-06-19 | 2019-02-26 | 博思特能源装备（天津）股份有限公司 | A kind of Novel quick-opening blind plate |
| CN108679360A (en) * | 2018-07-20 | 2018-10-19 | 广东电网有限责任公司 | A kind of tube wall leak stopping device for exerting and the blocking method using the device |
| CN208935365U (en) * | 2018-08-23 | 2019-06-04 | 天津市优塔卡密封科技股份有限公司 | A kind of Quick plugging tool |
| CN108869742A (en) * | 2018-08-23 | 2018-11-23 | 天津市优塔卡密封科技股份有限公司 | A kind of Quick plugging tool and method |
| CN208967309U (en) * | 2018-09-06 | 2019-06-11 | 中国石油天然气股份有限公司 | Petroleum pipeline's anti-gas blocking device |
| CN110375149B (en) * | 2019-07-05 | 2021-08-13 | 兖矿鲁南化工有限公司 | Tank bottom connecting pipe corner sand hole leakage stopping device and application thereof |
-
2019
- 2019-07-05 CN CN201910606155.2A patent/CN110375149B/en active Active
-
2020
- 2020-03-26 WO PCT/CN2020/081263 patent/WO2021004094A1/en active Application Filing
- 2020-03-26 AU AU2020310223A patent/AU2020310223B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| AU2020310223A1 (en) | 2022-02-10 |
| CN110375149A (en) | 2019-10-25 |
| WO2021004094A1 (en) | 2021-01-14 |
| AU2020310223B2 (en) | 2023-08-31 |
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