CN2705246Y - Non stop conveyer belt opening hole blocking machine with pressure - Google Patents

Non stop conveyer belt opening hole blocking machine with pressure Download PDF

Info

Publication number
CN2705246Y
CN2705246Y CN 200420035807 CN200420035807U CN2705246Y CN 2705246 Y CN2705246 Y CN 2705246Y CN 200420035807 CN200420035807 CN 200420035807 CN 200420035807 U CN200420035807 U CN 200420035807U CN 2705246 Y CN2705246 Y CN 2705246Y
Authority
CN
China
Prior art keywords
header
outer tube
biside plate
pivoted housing
matches
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.)
Expired - Fee Related
Application number
CN 200420035807
Other languages
Chinese (zh)
Inventor
刘科
邹爱华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN 200420035807 priority Critical patent/CN2705246Y/en
Application granted granted Critical
Publication of CN2705246Y publication Critical patent/CN2705246Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Landscapes

  • Pipe Accessories (AREA)

Abstract

A kind of delivery non-interruption pressure holing plugging machine.It mainly is to solve existing pipeline tapping and shutoff complicated in mechanical structure, can not cut large diameter pipeline and guarantee that cut surface is smooth, and technical problem such as clipping time is long.Its technical scheme main points are: it comprises the saddle pipe, header and be connected valve between saddle pipe and the header, axially cooperate the outer wall of the outer tube of installing to be provided with the outer tube screw thread in the header, outer tube is handled worm screw and is passed header wall and outer tube threads engaged from the header outside, the lower end of pivoted housing was equipped with cutter sweep or plugging device in the middle of engage sleeves was equipped with in the outer tube, the horizontal screw thread that the external wall of upper portion that middle pivoted housing stretches out header is provided with the perpendicular screw thread that matches with circumferential drive motors and matches with stepper motor up and down, cooperate the upper end of the interior axle of suit that interior axle handle is installed in the middle pivoted housing, the lower end of interior axle is equipped with the pivot pin that matches with the pivot pin cover.Its applied range, convenient, flexible is a kind of ideal equipment technology that satisfies operation under the stopping transportation pressure state.

Description

A kind of delivery non-interruption pressure holing plugging machine
Technical field
The utility model relates to a kind of device that is used for pipeline tapping and shutoff, especially a kind of mechanism that can carry out stopping transportation pressure perforate, shutoff.
Background technology
At present, press and open holes plugging machine limitation both domestic and external is more obvious, as complex structure, can not cut large diameter pipeline etc., can not guarantee that cut surface is smooth, and clipping time is long etc.Chen Jisheng, Li Mingyi, Feng Yunting as Panjin City Liaohe Oil Field, Liaoning Province designing institute invent " pipeline stopping transportation pressure the electrical tapping machine " (application number: 96225865.2 on April 12nd, 1996, open/notification number: 2279231, open/day for announcing: on April 22nd, 1998, Granted publication day: on April 22nd, 1998), the utility model relates to a kind of pipeline stopping transportation pressure electrical tapping machine that industrial pipelines operations such as oil, chemical industry, plumbing connect work progress such as head, workflow reengineering, replacing pipeline section that is used for.This device is made up of protective sleeve, guardrail, bearing, tubulose body, support, header, tube cutter, center bit, handwheel, leading screw, screw gland, bearing, hollow shaft, two-direction thrust bearing, large and small bevel gear, reductor, motor, V-type oil sealing, copper sheathing and brill milling arbor.
Summary of the invention
The purpose of this utility model provides a kind of delivery non-interruption pressure holing plugging machine that can carry out press and open holes and shutoff fast.
The technical scheme that its technical problem that solves the utility model adopts is: it comprises saddle pipe 9, header 11 and be connected saddle pipe 9 and header 11 between valve 10, it is characterized in that: saddle pipe 9 is installed on the same axis with header 11, cooperate the outer wall of the outer tube of installing 6 to be provided with outer tube screw thread 7 in the header 11, outer tube manipulation worm screw 8 passes the header wall from header 11 outsides and matches with outer tube screw thread 7, the lower end of pivoted housing 4 was equipped with cutter sweep or plugging device in the middle of engage sleeves was equipped with in the outer tube 6, the horizontal screw thread 15 that the external wall of upper portion that middle pivoted housing 4 stretches out header 11 is provided with the perpendicular screw thread 13 that matches with circumferential drive motors 14 and matches with stepper motor 16 up and down, cooperate the upper end of the interior axle 1 of suit that interior axle handle 17 is installed in the middle pivoted housing 4, the lower end of interior axle 1 is equipped with and pivot pin cover 3 pivot pins that match 2.Between outer tube 6 and middle pivoted housing 4 and middle pivoted housing 4 and interior axle 1, be set with bearing 12.Joint 18 in the middle of being installed on the pivoted housing 4 be inlaid in the middle of the interior conveying steel pipe of pivoted housing 4 be connected.The lower end of middle pivoted housing 4 is equipped with cutter sweep 5, and described cutter sweep 5 adopts plasma cutters or high-pressure water jet cutter sweep.Or at the lower end of middle pivoted housing 4 installation plugging device, the biside plate 21 that suit can horizontally slip on the middle flashboard 20 of described plugging device, the inner of the push rod 24 that joins with biside plate 21 and the threads engaged suit of nut 23, rotating shaft 22 lower thread and the threads engaged of nut 23 of axle 1 lower end in being connected are slotted on the garden cambered surface of biside plate 21 and middle flashboard 20 and are embedded with sealing strip or encapsulate.Or the biside plate 21 that suit can horizontally slip on the middle flashboard 20 of described plugging device, the inner of the push rod 24 that joins with biside plate 21 be installed in the middle of hydraulic jack 25 on the flashboard 20 suit that matches, fluting and be embedded with sealing strip or encapsulate on the garden cambered surface of biside plate 21 and middle flashboard 20.Or the biside plate 21 that suit can horizontally slip on the middle flashboard 20 of described plugging device, the inner of the hinged strut 27 that joins with biside plate 21 be connected in the hydraulic motor 26 of rotating shaft 22 of axle 1 lower end join fluting and be embedded with sealing strip or encapsulate on the garden cambered surface of biside plate 21 and middle flashboard 20.Or the biside plate 21 of described plugging device is hinged by hinge with middle flashboard 20, and the suit that matches with gear on being sleeved on hinge of the gear on the hydraulic motor is slotted on the garden cambered surface of biside plate 21 and middle flashboard 20 and is embedded with sealing strip or encapsulate.Or the umbrella end socket 31 of described plugging device is sleeved on the lower end of connecting rod 28, and connecting rod 28 is hinged with the lower end of interior axle 1, and the hydraulic pressure throw-out collar 29 that is sleeved on the connecting rod 28 joins with hinged strut 30, and the other end of hinged strut 30 and umbrella end socket 31 join.
The utility model can be used for the various material pipelines of the various pumped (conveying) mediums except that oxygen of various bores or perforate, the shutoff of tankage, particularly can finish the perforate and the shutoff of super large caliber pipe network in the short period of time.It can be applicable to industrial pipelines such as oil, chemical industry, metallurgy, plumbing and practices midwifery and bump a little, workflow reengineering, changes work progress such as pipeline section, valve.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the plugging device structural representation of embodiment 5.
Fig. 3 is a plugging device shown in Figure 2 structural representation in working order.
Fig. 4 is the plugging device structural representation of embodiment 6.
Fig. 5 is the plugging device structural representation of embodiment 7.
Fig. 6 is the plugging device structural representation of embodiment 10.
Axle in the 1-among the figure, 2-pivot pin, pivoted housing in the middle of the 3-pivot pin cover, 4-, the 5-cutter sweep, 6-outer tube, 7-outer tube screw thread, the 8-outer tube is handled worm screw, 9-saddle pipe or title flange spool, 10-valve, the 11-header, the perpendicular screw thread in the middle of the 12-bearing, 13-on the pivoted housing, horizontal screw thread in the middle of the circumferential drive motors of 14-, 15-on the pivoted housing, 16-is stepper motor up and down, the joint that axle handle in the 17-, the 18-carrier pipe interior with being inlaid in middle pivoted housing joins, 19. pipelines, 20. middle flashboard, 21. biside plates, 22. rotating shafts, 23. nut, 24. push rods, 25. hydraulic jacks, 26. hydraulic motor, 27. hinged struts, 28. connecting rods, 29. the hydraulic pressure throw-out collar, 30. hinged struts, 31. umbrella end sockets.
The specific embodiment
Embodiment 1, the technical scheme that its technical problem that solves the utility model adopts is: it comprises saddle pipe 9, header 11 and be connected saddle pipe 9 and header 11 between valve 10, it is characterized in that: saddle pipe 9 is installed on the same axis with header 11, axially cooperate the outer wall of the outer tube of installing 6 to be provided with outer tube screw thread 7 in the header 11, outer tube manipulation worm screw 8 passes the header wall from header 11 outsides and matches with outer tube screw thread 7, the lower end of pivoted housing 4 was equipped with cutter sweep or plugging device in the middle of engage sleeves was equipped with in the outer tube 6, the horizontal screw thread 15 that the external wall of upper portion that middle pivoted housing 4 stretches out header 11 is provided with the perpendicular screw thread 13 that matches with circumferential drive motors 14 and matches with stepper motor 16 up and down, cooperate the upper end of the interior axle 1 of suit that interior axle handle 17 is installed in the middle pivoted housing 4, the lower end of interior axle 1 is equipped with and pivot pin cover 3 pivot pins that match 2.Consult Fig. 1 to Fig. 6.The concrete operations step is as follows:
The first step is carried out press and open holes.
Press and open holes device of the present utility model is to cooperate pipeline by feeler mechanism, CUT or high-pressure water jet cutting square, the centralized positioning device, with the centralized positioning pin be pivot pin 2 match be welded on fitted shaft guide 3 formations for the treatment of on the tube having holes outer wall such as grade.
When adopting this machine operation, weld a special saddle pipe 9 (or claiming flange spool) at the perforate position for the treatment of of pipeline 19 earlier, and overlap 3 at centre welding pivot pin gate valve 10 is installed again, then tapping machine is installed on the gate valve pressure testing and shakes handle earlier after qualified, make the promptly interior axle 1 of centralized positioning axle touch tube wall with cutting torch, depress then and interior axle 90 degree in center of rotation location, location axle pin 2 is combined closely with pivot pin cover 3, be beneficial to take pipe arc plate out of after the cutting, starting CUT or high-pressure water jet machine cooperates profiling to cut, after finishing, cutting stops the work of profiling machine and CUT or high-pressure water jet machine, shake handle, cutting mechanism is return, valve-off, press and open holes is finished.
Second step was with the pressure plugging.
When being with when pressing plugging, at first the plugging machine is connected on the valve, the handle that shakes of Open valve makes and contacts the pipe end under the flashboard, takes the following manner shutoff.
1, rotary middle spindle makes side plate stretch out until withstanding inside pipe wall to both sides from the center flashboard, and the adhesive tape in the side plate outside is compressed, and promptly finishes shutoff.
2, start Hydraulic Station and side plate is stretched out from the center flashboard to both sides, promptly finish shutoff up to holding out against and compress rubber weather strip by hydraulic jack.
3, starting Hydraulic Station makes side plate finish shutoff from the both sides of center flashboard around the side hinge through in holding out against tube wall by the hydraulic motor driven gear.
4, shake handle make touch under balloon and the screen to the pipe end, and the inflation with shutoff.
5, shake handle and make and contact the pipe end under the flashboard, and by being located at wherein liquid cryogenic gas evaporimeter, making the ambient water medium freezing to finish shutoff rapidly.
6, shake handle and make and touch tube bottom plate under the umbrella shape closure plate and continue to come downwards to 1/2 and treat the tube sealing diameter, the umbrella closure plate is stretched out along the media flow direction, start Hydraulic Station, finish shutoff thereby the moving umbrella of push card endless belt struts until a top whole inside pipe wall.
The 3rd step was carried out tube sealing.
After finishing shutoff, can carry out changing its course, cut off, work such as the replacing of valve of pipe network.After treating that above-mentioned work is finished, can carry out the operation tube sealing of third part.
Again make the pipe arc plate that an external diameter strengthens 15-20mm according to the pipe arc plate that first cuts down, and leave seal groove, embed sealing strip at the pipe arc outer side center pivot pin cover locking device of packing into, by the rotation of pivot pin cover rotating band moving axis, closely be attached on the pore thereby promote to be about to manage the arc plate on the compressor arm, thereby finish tube sealing by nut.Central shaft to pressing down and reverse rotation 90 degree, is made central axis pin separate with guide, and shakes handle and return the plugging machine, and pull down slide valve, go up the region between the heart and the diaphragm plate separately, can finish the tube sealing operation.
Embodiment 2, are set with bearing 12 between outer tube 6 and middle pivoted housing 4 and middle pivoted housing 4 and interior axle 1.Consult Fig. 1 to Fig. 6, all the other are with embodiment 1.
Embodiment 3, the joint 18 in the middle of being installed on the pivoted housing 4 be inlaid in the middle of the interior conveying steel pipe of pivoted housing 4 be connected.Consult Fig. 1 to Fig. 6, all the other are with above-mentioned embodiment.
Embodiment 4, and described cutter sweep adopts plasma cutters or high-pressure water jet cutter sweep.The cutting of employing plasma; Or adopt the high-pressure water jet cutting to manage arc plate, the cutting of garden arc plate in conjunction with profile copying technology, and consult Fig. 1 to Fig. 6, all the other are with above-mentioned embodiment.
Embodiment 5, the biside plate 21 that suit can horizontally slip on the middle flashboard 20 of described plugging device, the inner of the push rod 24 that joins with biside plate 21 and the threads engaged suit of nut 23, rotating shaft 22 lower thread and the threads engaged of nut 23 of axle 1 lower end in being connected are slotted on the garden cambered surface of biside plate 21 and middle flashboard 20 and are embedded with sealing strip or encapsulate.Thereby drive push rods 24 motions and biside plate 21 horizontal slidings are put in place finish shutoff thereby rotate by rotating shaft 22.Consult Fig. 1 to Fig. 3, all the other are with above-mentioned embodiment.
Embodiment 6, the biside plate 21 that suit can horizontally slip on the middle flashboard 20 of described plugging device, the inner of the push rod 24 that joins with biside plate 21 be installed in the middle of hydraulic jack 25 on the flashboard 20 suit that matches, fluting and be embedded with sealing strip or encapsulate on the garden cambered surface of biside plate 21 and middle flashboard 20.Thereby translation reaches shutoff to both sides to promote garden arcuation biside plate by hydraulic jack 25.Consult Fig. 1 and Fig. 4, all the other are with above-mentioned embodiment.
Embodiment 7, the biside plate 21 that suit can horizontally slip on the middle flashboard 20 of described plugging device, the inner of the hinged strut 27 that joins with biside plate 21 be connected in the hydraulic motor 26 of rotating shaft 22 of axle 1 lower end join fluting and be embedded with sealing strip or encapsulate on the garden cambered surface of biside plate 21 and middle flashboard 20.Thereby translation reaches shutoff to both sides to promote garden arcuation biside plate by hydraulic motor 26.Consult Fig. 1 and Fig. 5, all the other are with above-mentioned embodiment.
Embodiment 8, and the biside plate of described plugging device 21 is hinged by hinge with middle flashboard 20, and the suit that matches with gear on being sleeved on hinge of the gear on the hydraulic motor is slotted on the garden cambered surface of biside plate 21 and middle flashboard 20 and is embedded with sealing strip or encapsulate.Thereby the gear rotation that promotes on the hydraulic motor drive hinge by hydraulic means makes the biside plate rotation reach shutoff.Consult Fig. 1, all the other are with above-mentioned embodiment.
Embodiment 9, and described plugging device is made up of ball and metallic grid.It makes it filled to block pipeline, for preventing that managing internal pressure promotion spheroid moves to stop balloon at tapping placement grid by the filled rubber ball.Consult Fig. 1, all the other are with above-mentioned embodiment.
Embodiment 10, and the umbrella end socket 31 of described plugging device is sleeved on the lower end of connecting rod 28, and connecting rod 28 is hinged with the lower end of interior axle 1, and the hydraulic pressure throw-out collar 29 that is sleeved on the connecting rod 28 joins with hinged strut 30, and the other end of hinged strut 30 and umbrella end socket 31 join.Connecting rod 28 centres have a hinge can make umbrella end socket 31 stretch into pipeline 19 vertical-depths and by hydraulic pressure throw-out collar 29 umbrella end socket 31 opened with shutoff.Consult Fig. 1 and Fig. 6, all the other are with above-mentioned embodiment.

Claims (9)

1, a kind of delivery non-interruption pressure holing plugging machine, it comprises saddle pipe (9), header (11) and be connected saddle pipe (9) and header (11) between valve (10), it is characterized in that: saddle pipe (9) is installed on the same axis with header (11), cooperate the outer wall of the outer tube of installing (6) to be provided with outer tube screw thread (7) in the header (11), outer tube manipulation worm screw (8) passes the header wall from header (11) outside and matches with outer tube screw thread (7), the lower end of pivoted housing (4) was equipped with cutter sweep or plugging device in the middle of the interior engage sleeves of outer tube (6) was equipped with, the horizontal screw thread (15) that the external wall of upper portion that middle pivoted housing (4) stretches out header (11) is provided with the perpendicular screw thread (13) that matches with circumferential drive motors (14) and matches with stepper motor (16) up and down, cooperate the upper end of the interior axle (1) of suit that interior axle handle (17) is installed in the middle pivoted housing (4), the lower end of interior axle (1) is equipped with the pivot pin (2) that matches with pivot pin cover (3).
2, delivery non-interruption pressure holing plugging machine according to claim 1 is characterized in that: be set with bearing (12) between outer tube (6) and middle pivoted housing (4) and middle pivoted housing (4) and interior axle (1).
3, delivery non-interruption pressure holing plugging machine according to claim 1 is characterized in that: the conveying steel pipe interior with being inlaid in middle pivoted housing (4) of the joint (18) in the middle of being installed on the pivoted housing (4) is connected.
4, according to claim 1,2 or 3 described delivery non-interruption pressure holing plugging machines, it is characterized in that: the lower end of middle pivoted housing (4) is equipped with cutter sweep (5), and described cutter sweep (5) adopts plasma cutters or high-pressure water jet cutter sweep.
5, according to claim 1,2 or 3 described delivery non-interruption pressure holing plugging machines, it is characterized in that: the middle flashboard (20) of described plugging device is gone up the biside plate (21) that suit can horizontally slip, the inner of the push rod (24) that joins with biside plate (21) and the threads engaged suit of nut (23), be connected rotating shaft (22) lower thread and the threads engaged of nut (23) of interior axle (1) lower end, slot on the garden cambered surface of biside plate (21) and middle flashboard (20) and be embedded with sealing strip or encapsulate.
6, delivery non-interruption pressure holing plugging machine according to claim 1, it is characterized in that: the middle flashboard (20) of described plugging device is gone up the biside plate (21) that suit can horizontally slip, the inner of the push rod (24) that joins with biside plate (21) be installed in the middle of hydraulic jack (25) on the flashboard (20) suit that matches, slot on the garden cambered surface of biside plate (21) and middle flashboard (20) and be embedded with sealing strip or encapsulate.
7, delivery non-interruption pressure holing plugging machine according to claim 1, it is characterized in that: the middle flashboard (20) of described plugging device is gone up the biside plate (21) that suit can horizontally slip, the inner of the hinged strut (27) that joins with biside plate (21) joins with the hydraulic motor (26) of the rotating shaft (22) that is connected interior axle (1) lower end, slots on the garden cambered surface of biside plate (21) and middle flashboard (20) and is embedded with sealing strip or encapsulate.
8, delivery non-interruption pressure holing plugging machine according to claim 1, it is characterized in that: the biside plate of described plugging device (21) is hinged by hinge with middle flashboard (20), gear on the hydraulic motor suit that matches with gear on being sleeved on hinge, fluting and be embedded with sealing strip or encapsulate on the garden cambered surface of biside plate (21) and middle flashboard (20).
9, delivery non-interruption pressure holing plugging machine according to claim 1, it is characterized in that: the umbrella end socket (31) of described plugging device is sleeved on the lower end of connecting rod (28), connecting rod (28) is hinged with the lower end of interior axle (1), the hydraulic pressure throw-out collar (29) that is sleeved on the connecting rod (28) joins with hinged strut (30), and the other end of hinged strut (30) and umbrella end socket (31) join.
CN 200420035807 2004-05-01 2004-05-01 Non stop conveyer belt opening hole blocking machine with pressure Expired - Fee Related CN2705246Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200420035807 CN2705246Y (en) 2004-05-01 2004-05-01 Non stop conveyer belt opening hole blocking machine with pressure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200420035807 CN2705246Y (en) 2004-05-01 2004-05-01 Non stop conveyer belt opening hole blocking machine with pressure

Publications (1)

Publication Number Publication Date
CN2705246Y true CN2705246Y (en) 2005-06-22

Family

ID=34850283

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200420035807 Expired - Fee Related CN2705246Y (en) 2004-05-01 2004-05-01 Non stop conveyer belt opening hole blocking machine with pressure

Country Status (1)

Country Link
CN (1) CN2705246Y (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103091327A (en) * 2011-11-03 2013-05-08 中国石油天然气股份有限公司 Hole opening sampling verification method for pipeline spiral weld defects
CN103629470A (en) * 2013-12-12 2014-03-12 上海海长骄机电工程有限公司 Pipeline nonstop-transmission holing and plugging system and process method thereof
CN105415433A (en) * 2015-11-28 2016-03-23 无锡飞环包装器材有限公司 Single-column tool for forming circular holes in packaging carbon
CN106764190A (en) * 2016-12-29 2017-05-31 武汉理工大学 A kind of combination unit that branch pipe is installed for conveyance conduit with pressure
CN106907543A (en) * 2017-04-19 2017-06-30 武汉理工大学 A kind of press and open holes closure shunting equipment
CN107724997A (en) * 2017-11-03 2018-02-23 中国石油天然气集团公司 Length stops well drilling and bleeds off pressure device and method
CN108506638A (en) * 2018-03-21 2018-09-07 北京市燃气集团有限责任公司 Receipts system and method is put in detection robot in gas pipeline
CN114008370A (en) * 2019-06-12 2022-02-01 Inetec学院核工艺学有限公司 Large-diameter pipe sealing device

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103091327B (en) * 2011-11-03 2015-08-19 中国石油天然气股份有限公司 A kind of spiral pipeline weld defect perforate sampling verification method
CN103091327A (en) * 2011-11-03 2013-05-08 中国石油天然气股份有限公司 Hole opening sampling verification method for pipeline spiral weld defects
CN103629470A (en) * 2013-12-12 2014-03-12 上海海长骄机电工程有限公司 Pipeline nonstop-transmission holing and plugging system and process method thereof
CN105415433A (en) * 2015-11-28 2016-03-23 无锡飞环包装器材有限公司 Single-column tool for forming circular holes in packaging carbon
CN106764190B (en) * 2016-12-29 2018-11-30 武汉理工大学 A kind of combination unit for conveyance conduit with pressure installation branch pipe
CN106764190A (en) * 2016-12-29 2017-05-31 武汉理工大学 A kind of combination unit that branch pipe is installed for conveyance conduit with pressure
CN106907543B (en) * 2017-04-19 2018-11-30 武汉理工大学 A kind of press and open holes closure shunting equipment
CN106907543A (en) * 2017-04-19 2017-06-30 武汉理工大学 A kind of press and open holes closure shunting equipment
CN107724997A (en) * 2017-11-03 2018-02-23 中国石油天然气集团公司 Length stops well drilling and bleeds off pressure device and method
CN107724997B (en) * 2017-11-03 2019-07-09 中国石油天然气集团公司 It is long to stop well drilling and bleed off pressure the length of device to stop well drilling and bleed off pressure method
CN108506638A (en) * 2018-03-21 2018-09-07 北京市燃气集团有限责任公司 Receipts system and method is put in detection robot in gas pipeline
CN108506638B (en) * 2018-03-21 2019-03-08 北京市燃气集团有限责任公司 Receipts system and method is put in detection robot in gas pipeline
CN114008370A (en) * 2019-06-12 2022-02-01 Inetec学院核工艺学有限公司 Large-diameter pipe sealing device

Similar Documents

Publication Publication Date Title
CN2705246Y (en) Non stop conveyer belt opening hole blocking machine with pressure
CN2811727Y (en) Apparatus for drilling and plugging steel-skeleton plastic composite pipe without stopping gas transportation
CN214667506U (en) Be applied to high-pressure gas tightness detection device of slot pipe fitting
CN208450720U (en) A kind of old tube coupling revolution cutter device
CN202559754U (en) Engineering machinery, material conveying system and pipeline switching device of material conveying system
CN2279231Y (en) Electric hole-drilling machine under pressure without stopping supply for pipe
CN110549462A (en) Discharging device for concrete 3D printing tool end
CN105782450A (en) Water sealing structure of raise boring machine
CN206290903U (en) A kind of pipeline maintenance device for plugging easy to use
CN212178239U (en) Pipeline plugging device
CN214222291U (en) Pipeline connecting device for water supply and drainage engineering
CN211925144U (en) Leakage stopper for pressure pipeline
CN2752583Y (en) Equipment for making urgent repair on perforating on plastic composite gas pipe with steel skeleton
CN217301638U (en) Flange type electric butterfly valve
CN102101204B (en) Rotary turning mechanism
CN101029689A (en) Replaceable valve of dual-sealing ring
CN218102528U (en) PE pipe recovery structure
CN2688426Y (en) Gas pipeline on-line intelligent cutter
CN219994751U (en) Natural gas pipeline leakage repairing device
CN215110581U (en) Stable gate plate of rubber-lined gate valve and gate plate sliding track thereof
CN216201587U (en) Leakage stopping device for petroleum pressure pipeline
CN211475216U (en) Drainage cover plate for welding natural gas purification plant pipeline under pressure
CN213452016U (en) Natural gas valve switch auxiliary device
CN216666896U (en) Following type coiler is restoreed in non-excavation of dysmorphism pipeline
CN208295135U (en) A kind of defective valves door closing device

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee