CN107676568A - A kind of on-line production pipeline internal hydraulic pressure plugging device and its application method - Google Patents
A kind of on-line production pipeline internal hydraulic pressure plugging device and its application method Download PDFInfo
- Publication number
- CN107676568A CN107676568A CN201711278467.2A CN201711278467A CN107676568A CN 107676568 A CN107676568 A CN 107676568A CN 201711278467 A CN201711278467 A CN 201711278467A CN 107676568 A CN107676568 A CN 107676568A
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- block head
- tensioner
- hydraulic
- cylinder
- piston rod
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims abstract description 61
- 238000007789 sealing Methods 0.000 claims abstract description 44
- 238000009434 installation Methods 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 51
- 239000010985 leather Substances 0.000 claims description 25
- 238000010276 construction Methods 0.000 claims description 15
- 230000008439 repair process Effects 0.000 claims description 9
- 239000010720 hydraulic oil Substances 0.000 claims description 8
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000012423 maintenance Methods 0.000 claims description 5
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 239000003292 glue Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/11—Plugs
- F16L55/1141—Plugs the plug being made of elastic material
-
- 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
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
- F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
- F16L55/13—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by plastic deformation
Abstract
The present invention is a kind of on-line production pipeline internal hydraulic pressure plugging device and its application method, it is possible to increase treats the sealing effectiveness of blocking pipe.Tensioner hydraulic cylinder is housed, the tensioner piston rod of tensioner hydraulic cylinder is connected by swing shaft with block head mounting seat in the block head of the present apparatus；Hydralic hose is provided with two, the hydraulic fluid port of hand-operated direction valve of the one end with being fixed on outside closure header is connected, the other end is connected with the oil inlet A on tensioner piston rod and oil inlet B respectively, and hand-operated direction valve is connected with hydraulic power supply；For block head at the initial installation position of block head, the external diameter of block head is less than the internal diameter for treating blocking pipe, and for block head after the work of the operating position of block head, the external diameter of block head is more than the internal diameter for treating blocking pipe.Not by treating that the objective factors such as blocking pipe ovalizing deflection, inwall corrosion are influenceed, contact of the sealing cup with inner-walls of duct is closer.Easy to operate, reliable operation of the invention, has significant using effect.
Description
Technical field
The present invention relates to the stopping transportation pressure plugging construction device of in-service pipeline, in specifically a kind of on-line production pipeline
Portion's hydraulic pressure plugging device and its application method, it is possible to increase treat the sealing effectiveness of blocking pipe.
Background technology
The stopping transportation pressure closure of in-service pipeline is a kind of special technology for repairing, rushing to repair, what existing plugging device used
Block head be interference seal formula rubber seal leather cup, its external diameter be more than blocking pipe internal diameter, be connected to block head mounting seat
Bottom, installed in closure header in, by closure oil cylinder closure cylinder piston rod promote it is descending, hardness enter treats blocking pipe
In.Installation site and angle of the block head in block head mounting seat are adjusted by adjustment bolt, and the flip angle of block head is not easy
Regulation.Rubber seal leather cup with treating that blocking pipe is that interference closure seals, by original state inserted and treat blocking pipe by block head
During, rubber seal leather cup easily causes damage, if the position adjustment of block head is improper, stuck phenomenon easily occurs.Due to rubber
The relative inner diameter seal magnitude of interference for treating blocking pipe of glue sealing cup is definite value, when treating blocking pipe ovalizing deflection, inwall corrosion
Poorly sealed phenomenon can be produced when serious, the sealing effectiveness of closure is not only reduced, also brings safety to plugging construction operation
Hidden danger, even result in closure operation failure.So urgently develop a kind of plugging device that can solve drawbacks described above.
The content of the invention
The purpose of the present invention is the defects of presence for prior art and deficiency, there is provided a kind of on-line production pipeline internal hydraulic pressure
Plugging device and its application method, it is not necessary to position adjustment is carried out to block head, when block head is in the initial installation position of block head
When, the external diameter of block head is less than the internal diameter for treating blocking pipe, after block head is in the work of the operating position of block head, block head
External diameter is more than the internal diameter for treating blocking pipe.Avoid block head that stuck phenomenon occurs, protection sealing cup, ensure to treat blocking pipe
Sealing property, efficiency of construction is improved, ensure construction safety, reduce accident potential, reduce production cost.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of on-line production pipeline internal hydraulic pressure plugging device includes block head and block head mounting seat, block head and block head installation
Seat is arranged in closure header, blocks the upper end installation closure oil cylinder of header, closure cylinder piston rod and block head mounting seat
Top is connected, and closure oil cylinder is connected with hydraulic power supply.Tensioner hydraulic cylinder, the tensioner piston of tensioner hydraulic cylinder are housed in block head
Bar is connected by swing shaft with block head mounting seat；Hydralic hose is provided with two, one end and the hand being fixed on outside closure header
The hydraulic fluid port connection of dynamic reversal valve, the other end are connected with the oil inlet A on tensioner piston rod and oil inlet B respectively, by manual reverse of direction
Valve is connected with hydraulic power supply；For block head at the initial installation position of block head, the external diameter of block head, which is less than, treats blocking pipe
Internal diameter, for block head after the work of the operating position of block head, the external diameter of block head is more than the internal diameter for treating blocking pipe.
A kind of application method of on-line production pipeline internal hydraulic pressure plugging device, it is：
A, the Balanced interface for blocking header is connected by pipeline with treating blocking pipe, ensures the present apparatus and treat blocking pipe internal pressure
The balance of power, sandwich valve, operation hydraulic power supply and closure oil cylinder are opened, closure cylinder piston rod is driven block head mounting seat
With the initial installation position of the self-styled plug of block head through sandwich valve and three-way pipe to treating to move in blocking pipe；
B, when block head enter after blocking pipe, touch after the bottom of blocking pipe after, along rotation axial direction block head mounting seat
Upset side to overturn to horizontality, into treating in blocking pipe；
C, hydraulic power supply and hand-operated direction valve are operated, the hydraulic oil in hydralic hose is entered piston A ends from oil inlet A, is pushed away
Hydrodynamic cylinder pressure cylinder sleeve and sealing cup are moved to leather cup tensioner body side together, and blocking pipe is treated in tensioner sealing cup, sealing
Inner chamber, can now be repaired and first-aid repair construction to on-line production pipeline；
D, after maintenance and first-aid repair construction, hydraulic power supply and hand-operated direction valve are operated, make hydraulic oil in hydralic hose from
Oil inlet B flows into piston B ends, promotes hydraulic cylinder end cover, hydraulic cylinder cylinder sleeve and sealing cup together to block head guide way side
It is mobile, the sealing cup of block head shunk, returned to original size, from treating Safe withdrawing in blocking pipe.
The present invention compared with prior art, has following significant effect：Tensioner liquid is housed in the block head in the present invention
Cylinder pressure, block head are made up of block head guide way, sealing cup and leather cup tensioner body, when block head is in the initial installation of block head
Position, do not enter into when blocking pipe, the external diameter of block head is less than the internal diameter for treating blocking pipe, and the mistake of blocking pipe is treated in entrance
It is not damaged in journey, after block head is in the work of the operating position of block head, the external diameter of block head, which is more than, treats blocking pipe
Internal diameter.Block head guide way and leather cup tensioner body are metallic articles, and block head guide way is hemisphere, have and are oriented to work(
Can, block head need not adjust orientation, stuck phenomenon can will not occur smoothly into treating in blocking pipe after upset.This hair
It is bright to make sealing cup spreading using tensioner hydraulic cylinder, not by the shadow for treating the objective factors such as blocking pipe ovalizing deflection, inwall corrosion
Ring, contact of the sealing cup with inner-walls of duct is closer.Its easy to operate, reliable operation, effectively protects sealing cup, significantly
Plugging effect is improved, construction safety is ensure that, reduces potential safety hazard, improves efficiency of construction have significant using effect
Fruit simultaneously can produce obvious economic benefit.
Brief description of the drawings
Fig. 1 is the application state schematic diagram of the present invention；
Fig. 2 is Fig. 1 A-A structure sectional views；
Fig. 3 is Fig. 1 B-B structure sectional views；
Fig. 4 is Fig. 1 C-C structure sectional views；
Fig. 5 is Fig. 1 E-E structure sectional views；
Fig. 6 is Fig. 5 F-F structure sectional views；
Fig. 7 is Fig. 5 G-G structure sectional views；
In figure：Blocking pipe 1 is treated, three-way pipe 2, block head mounting seat 3, cylinder piston rod 4 is blocked, hydralic hose 5, blocks oil cylinder
6, hand-operated direction valve 7, swing shaft 8, closure header 9, sandwich valve 10, block head guide way 11, hydraulic cylinder end cover 12, plug 13,
Jump ring 14, shield ring sleeve 15, piston stopper 16, hydraulic cylinder cylinder sleeve 17, piston guide band 18, Glais ring 19, tensioner piston 20, sealing
Part 21, piston rod guidance tape 22, tensioner piston rod 23, leather cup tensioner body 24, leather cup compression plate 25, sealing cup 26, spacer pin
27, Balanced interface 28, rubber hose coupling 29, end cap 30, sebific duct fixed seat 31.
Embodiment
The present invention is described in detail below in conjunction with accompanying drawing, not limited the scope of the invention, all designs using the present invention are thought
The improvement that rood goes out belongs to the protection category of the present invention.
Referring to Fig. 1 to Fig. 7, a kind of on-line production pipeline internal hydraulic pressure plugging device, including block head and block head mounting seat
3, block head and block head mounting seat 3 are arranged in closure header 9, the upper end installation closure oil cylinder 6 of closure header 9, closure oil
Cylinder piston rod 4 is connected with the top of block head mounting seat 3, and closure oil cylinder 6 is connected with hydraulic power supply.Tensioner is housed in block head
Hydraulic cylinder, the tensioner piston rod 23 of tensioner hydraulic cylinder are connected by swing shaft 8 with block head mounting seat 3；Hydralic hose 5 is provided with two
The hydraulic fluid port of the hand-operated direction valve 7 of root, one end with being fixed on closure header 9 outside is connected, the other end respectively with tensioner piston rod 23
On oil inlet A connected with oil inlet B, hand-operated direction valve 7 is connected with hydraulic power supply；Initial peace of the block head in block head
When filling position, the external diameter of block head is less than the internal diameter for treating blocking pipe 1, and block head is after the work of the operating position of block head, closure
The external diameter of head is more than the internal diameter for treating blocking pipe 1.
The block head includes block head guide way 11, sealing cup 26 and leather cup tensioner body 24, block head guide way 11
It is hemisphere, is bolted on the hydraulic cylinder end cover 12 of tensioner hydraulic cylinder；Leather cup tensioner body 24 is arc body, its rear end
Face is bolted with tensioner piston rod 23, and the anterior outer wall of leather cup tensioner body 24 is tapered slope and the inwall of sealing cup 26
Outer inclined-plane be engaged, insert in sealing cup 26, sealing cup 26 is by leather cup compression plate 25 and being bolted to tensioner liquid
The outside of hydraulic cylinder cylinder sleeve 17 of cylinder pressure, makes sealing cup 26 be between hydraulic cylinder cylinder sleeve 17 and leather cup tensioner body 24, referring to Fig. 2
And Fig. 3.The external diameter of block head guide way 11 and leather cup tensioner body 24 is respectively less than by the internal diameter of blocking pipe 1, hemispherical closure
Head guide way 11 can guide block head to advance.
The tensioner hydraulic cylinder includes hydraulic cylinder end cover 12, hydraulic cylinder cylinder sleeve 17, tensioner piston 20 and tensioner piston rod 23,
Tensioner piston 20 is fixed on the front portion of tensioner piston rod 23, in hydraulic cylinder cylinder sleeve 17, hydraulic cylinder end cover 12 and hydraulic cylinder
Cylinder sleeve 17 is bolted.
Before the tensioner piston 20 is fixed on tensioner piston rod 23 by jump ring 14, shield ring sleeve 15 and piston stopper 16
Portion, jump ring 14 are fixed in the jump-ring slot of the front end of tensioner piston rod 23, and piston stopper 16 is two semicircular rings, is fixed on tensioner work
In the piston stopper groove of stopper rod 23, shield ring sleeve 15 is fixed on the outside of piston stopper 16；The cylindrical of tensioner piston 20 is provided with lattice Lay
Circle 19 and piston guide band 18；Seal 21 and piston rod guidance tape are provided between tensioner piston rod 23 and hydraulic cylinder cylinder sleeve 17
22。
Hydraulic pressure oil duct, the hydraulic oil of tensioner piston 20 are equipped with the body of the tensioner piston 20 and tensioner piston rod 23
Road is that radial flow path is connected with piston A ends；The front end of the hydraulic pressure oil duct communicated in tensioner piston rod 23 with oil inlet A passes through silk
Stifled 13 closure is simultaneously provided with the radial flow path communicated with the hydraulic pressure oil duct of tensioner piston 20 at the middle part of the hydraulic pressure oil duct；Tensioner piston
The front end of the hydraulic pressure oil duct communicated in bar 23 with oil inlet B is connected with piston B ends.
The lower lumen of the hydraulic cylinder end cover 12 is the mobile space of tensioner piston rod 23, the lower lumen of hydraulic cylinder end cover 12
Structure is consistent with the structure of tensioner piston rod 23 and shield ring sleeve 15, and tensioner piston rod 23 can enter in the mobile space；Hydraulic pressure
Cylinder cylinder sleeve 17 is flange plate-like cylinder sleeve, and its upper port is provided with assembly disk side, being capable of fixing seal leather cup 26 and leather cup compression plate
25。
Two hydralic hoses 5 are coiled in block head mounting seat 3 and closure header in the both sides of closure cylinder piston rod 4
Between 9 hydraulic line installation port, the bottoms of two hydralic hoses 5 passed through from sebific duct fixed seat 31 and sebific duct clamping plate after point
It is not connected with the oil inlet A and oil inlet B of tensioner piston rod 23, sebific duct fixed seat 31 and sebific duct clamping plate are bolted on envelope
The both sides of plug mounting seat 3, can so make that hydralic hose 5 in closure header 9 is effectively fixed and motion is orderly, referring to Fig. 5 and
Fig. 7.
The hydraulic line installation port of the closure header 9 is provided with rubber hose coupling 29 and end cap 30, and rubber hose coupling 29 is installed
In end cap 30, hydralic hose 5 be connected with rubber hose coupling 29 after from the rear end of end cap 30 using being entered back into after rubber tube clip board clamping
Block in header 9, hydraulic line installation port is with blocking the vertical interlaced of block head mounting seat 3 in header 9, referring to Fig. 5 and figure
6。
The lower end of the non-toggle side of block head mounting seat 3 is provided with spacer pin 27, can limit the initial installation of block head
Position, sees Fig. 4.
A kind of application method of on-line production pipeline internal hydraulic pressure plugging device, it is：
A, the Balanced interface 28 for blocking header 9 is ensured the present apparatus and treats blocking pipe by pipeline and treating that blocking pipe 1 connects
The balance of pressure in 1, sandwich valve 10, operation hydraulic power supply and closure oil cylinder 6 are opened, closure cylinder piston rod 4 is driven envelope
The initial installation position of plug mounting seat 3 and the self-styled plug of block head is through sandwich valve 10 and three-way pipe 2 to treating to move in blocking pipe 1
It is dynamic；
B, when block head enter after blocking pipe 1, touch after the bottom of blocking pipe 1 after, along swing shaft 8 to block head install
The upset side to overturn of seat 3 is to horizontality, into treating in blocking pipe 1；
C, hydraulic power supply and hand-operated direction valve 7 are operated, the hydraulic oil in hydralic hose 5 is entered piston A ends from oil inlet A,
Hydraulic cylinder cylinder sleeve 17 and sealing cup 26 is promoted to be moved together to the side of leather cup tensioner body 24, tensioner sealing cup 26, sealing are treated
The inner chamber of blocking pipe 1, can now be repaired and first-aid repair construction to on-line production pipeline；
D, after maintenance and first-aid repair construction, hydraulic power supply and hand-operated direction valve 7 is operated, makes the hydraulic oil in hydralic hose 5
Piston B ends are flowed into from oil inlet B, promote hydraulic cylinder end cover 12, hydraulic cylinder cylinder sleeve 17 and sealing cup 26 to be led together to block head
Moved to the side of body 11, the sealing cup 26 of block head shunk, returned to original size, from treating to move back safely in blocking pipe 1
Go out.
The present apparatus in use, when block head lower end is touched when 1 bottom interior wall of blocking pipe, live by closure oil cylinder
Stopper rod 4, which continues to stretch out, promotes block head mounting seat 3 to move down, now block head leading by the block head guide way 11 of front end
To effect, rotated around swing shaft 8；Continue to be moved downward to when the lower end of block head mounting seat 3 and treat the bottom interior wall of blocking pipe 1
When, block head is inserted into horizontality to be treated in blocking pipe 1；In block head folding process, hydralic hose 5 is in extended state.
Hydraulic oil from hydraulic power supply enters the piston A ends of tensioner hydraulic cylinder by oil inlet A, promotes hydraulic cylinder
Set 17 and sealing cup 26 move to the side of leather cup tensioner body 24 together, make the spreading of sealing cup 26, now the hydraulic pressure at piston B ends
Oil can be more than the external diameter of sealing cup 26 and treat the internal diameter of blocking pipe 1, for plugging construction by oil inlet B oil return, not by
The influence for situations such as treating 1 ID distortion of blocking pipe, ensure its sealing effectiveness, created conditions for maintenance and first-aid repair construction.Maintenance
After first-aid repair construction, hydraulic oil can enter the piston B ends of tensioner hydraulic cylinder by oil inlet B, promote hydraulic cylinder end cover
12nd, hydraulic cylinder cylinder sleeve 17 and sealing cup 26 move to the side of block head guide way 11 together, make sealing cup 26 along leather cup
The tapered slope retraction of the outer wall of tensioner body 24, it is less than its external diameter to treat the internal diameter of blocking pipe 1, is easy to block head from treating closure pipe
Exited in road 1.
The embodiment described above is only exemplary embodiments, but the present invention is not limited only to these embodiments, this area
Technical staff can make modification under without departing from the spirit of the present invention and enlightenment.Aspect disclosed herein there may be a lot
Change, combination and modification, and be within, therefore, protection domain is not limited only to explanation above.
Claims (10)
1. a kind of on-line production pipeline internal hydraulic pressure plugging device, including block head and block head mounting seat（3）, block head and closure
Head mounting seat（3）Installed in closure header（9）It is interior, block header（9）Upper end installation closure oil cylinder（6）, block oil cylinder piston
Bar（4）With block head mounting seat（3）Top connection, block oil cylinder（6）It is connected with hydraulic power supply, it is characterized in that, block head
In tensioner hydraulic cylinder, the tensioner piston rod of tensioner hydraulic cylinder are housed（23）Pass through swing shaft（8）With block head mounting seat（3）Even
Connect；Hydralic hose（5）Provided with two, one end with being fixed on closure header（9）The hand-operated direction valve of outside（7）Hydraulic fluid port connection,
The other end respectively with tensioner piston rod（23）On oil inlet A connected with oil inlet B, by hand-operated direction valve（7）With hydraulic power
Source connects；For block head at the initial installation position of block head, the external diameter of block head, which is less than, treats blocking pipe（1）Internal diameter, closure
For head after the work of the operating position of block head, the external diameter of block head, which is more than, treats blocking pipe（1）Internal diameter.
2. a kind of on-line production pipeline internal hydraulic pressure plugging device as claimed in claim 1, it is characterized in that, the block head includes
Block head guide way（11）, sealing cup（26）With leather cup tensioner body（24）, block head guide way（11）It is hemisphere, passes through spiral shell
Bolt is fixed on the hydraulic cylinder end cover of tensioner hydraulic cylinder（12）On；Leather cup tensioner body（24）It is that arc body, thereafter end face and tensioner are lived
Stopper rod（23）It is bolted, leather cup tensioner body（24）Anterior outer wall be tapered slope and sealing cup（26）Inwall it is interior
Inclined-plane is engaged, inserts sealing cup（26）It is interior, sealing cup（26）Pass through leather cup compression plate（25）Be bolted to tensioner
The hydraulic cylinder cylinder sleeve of hydraulic cylinder（17）Outside, make sealing cup（26）In hydraulic cylinder cylinder sleeve（17）With leather cup tensioner body（24）It
Between.
3. a kind of on-line production pipeline internal hydraulic pressure plugging device as claimed in claim 1 or 2, it is characterized in that, the tensioner liquid
Cylinder pressure includes hydraulic cylinder end cover（12）, hydraulic cylinder cylinder sleeve（17）, tensioner piston（20）With tensioner piston rod（23）, tensioner piston
（20）It is fixed on tensioner piston rod（23）Front portion, installed in hydraulic cylinder cylinder sleeve（17）It is interior, hydraulic cylinder end cover（12）With hydraulic cylinder
Cylinder sleeve（17）It is bolted.
4. a kind of on-line production pipeline internal hydraulic pressure plugging device as claimed in claim 3, it is characterized in that, the tensioner piston
（20）Pass through jump ring（14）, shield ring sleeve（15）And piston stopper（16）It is fixed on tensioner piston rod（23）Front portion, jump ring（14）
It is fixed on tensioner piston rod（23）In the jump-ring slot of front end, piston stopper（16）It is two semicircular rings, is fixed on tensioner piston rod
（23）Piston stopper groove in, shield ring sleeve（15）It is fixed on piston stopper（16）Outside；Tensioner piston（20）Cylindrical be provided with
Glais ring（19）With piston guide band（18）；Tensioner piston rod（23）With hydraulic cylinder cylinder sleeve（17）Between be provided with seal（21）With
Piston rod guidance tape（22）.
5. a kind of on-line production pipeline internal hydraulic pressure plugging device as claimed in claim 4, it is characterized in that, the tensioner piston
（20）With tensioner piston rod（23）Body in be equipped with hydraulic pressure oil duct, tensioner piston（20）Hydraulic pressure oil duct be radial flow path with
Piston A ends are connected；Tensioner piston rod（23）In the front end of hydraulic pressure oil duct that is communicated with oil inlet A pass through plug（13）Closure is simultaneously
It is provided with and tensioner piston at the middle part of the hydraulic pressure oil duct（20）The radial flow path that communicates of hydraulic pressure oil duct；Tensioner piston rod（23）In
The front end of the hydraulic pressure oil duct communicated with oil inlet B is connected with piston B ends.
6. a kind of on-line production pipeline internal hydraulic pressure plugging device as claimed in claim 3, it is characterized in that, the hydraulic cylinder end cover
（12）Lower lumen be tensioner piston rod（23）Mobile space, hydraulic cylinder end cover（12）The structure of lower lumen is lived with tensioner
Stopper rod（23）And shield ring sleeve（15）Structure be consistent；Hydraulic cylinder cylinder sleeve（17）It is flange plate-like cylinder sleeve, its upper port is provided with dress
With disk side.
7. a kind of on-line production pipeline internal hydraulic pressure plugging device as claimed in claim 1, it is characterized in that, the two hydraulic pressure glue
Pipe（5）In closure cylinder piston rod（4）Both sides coil in block head mounting seat（3）With blocking header（9）Hydraulic line peace
Between filling port, two hydralic hoses（5）Bottom from sebific duct fixed seat（31）With passed through in sebific duct clamping plate after respectively with tensioner
Piston rod（23）Oil inlet A connected with oil inlet B, sebific duct fixed seat（31）Block head is bolted on sebific duct clamping plate
Mounting seat（3）Both sides.
8. a kind of on-line production pipeline internal hydraulic pressure plugging device as described in claim 1 or 7, it is characterized in that, the closure connection
Case（9）Hydraulic line installation port be provided with rubber hose coupling（29）And end cap（30）, rubber hose coupling（29）Installed in end cap（30）
In, hydralic hose（5）With rubber hose coupling（29）From end cap after connection（30）Rear end using entering back into envelope after rubber tube clip board clamping
Stifled header（9）In, hydraulic line installation port and closure header（9）Interior block head mounting seat（3）Vertical interlaced.
9. a kind of on-line production pipeline internal hydraulic pressure plugging device as claimed in claim 8, it is characterized in that, the block head installation
Seat（3）The lower end of non-toggle side is provided with spacer pin（27）.
10. a kind of application method of on-line production pipeline internal hydraulic pressure plugging device as claimed in claim 1, is：
Header will be blocked（9）Balanced interface（28）By pipeline and treat blocking pipe（1）Connection, open sandwich valve（10）, behaviour
Make hydraulic power supply and closure oil cylinder（6）, make closure cylinder piston rod（4）Drive block head mounting seat（3）It is self-styled with block head
The initial installation position of plug passes through sandwich valve（10）And three-way pipe（2）To treating blocking pipe（1）Interior movement；
Blocking pipe is treated when block head enters（1）, touch and treat blocking pipe（1）Bottom after, along swing shaft（8）To block head
Mounting seat（3）Upset side to overturn to horizontality, into treating blocking pipe（1）It is interior；
Operate hydraulic power supply and hand-operated direction valve（7）, make hydralic hose（5）In hydraulic oil enter piston A from oil inlet A
End, promote hydraulic cylinder cylinder sleeve（17）And sealing cup（26）Together to leather cup tensioner body（24）Side is moved, tensioner sealing cup
（26）, sealing treat blocking pipe（1）Inner chamber, on-line production pipeline can now be repaired and first-aid repair construction；
After maintenance and first-aid repair construction, hydraulic power supply and hand-operated direction valve are operated（7）, make hydralic hose（5）Interior hydraulic pressure
Oil flows into piston B ends from oil inlet B, promotes hydraulic cylinder end cover（12）, hydraulic cylinder cylinder sleeve（17）And sealing cup（26）Together to
Block head guide way（11）Side is moved, and makes the sealing cup of block head（26）Shrink, from treating blocking pipe（1）In exit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711278467.2A CN107676568A (en) | 2017-12-06 | 2017-12-06 | A kind of on-line production pipeline internal hydraulic pressure plugging device and its application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711278467.2A CN107676568A (en) | 2017-12-06 | 2017-12-06 | A kind of on-line production pipeline internal hydraulic pressure plugging device and its application method |
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| CN107676568A true CN107676568A (en) | 2018-02-09 |
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| CN201711278467.2A Pending CN107676568A (en) | 2017-12-06 | 2017-12-06 | A kind of on-line production pipeline internal hydraulic pressure plugging device and its application method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109373100A (en) * | 2018-12-04 | 2019-02-22 | 中石化石油工程技术服务有限公司 | A kind of hydraulic packer that stroke automatically controls |
| CN111306394A (en) * | 2020-02-20 | 2020-06-19 | 黄亚飞 | Intelligent adjustable spherical double-sealing plugging device |
| CN114576460A (en) * | 2022-03-23 | 2022-06-03 | 西南石油大学 | Rigid-flexible combined pipeline non-stop conveying plugging device |
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| CN111306394B (en) * | 2020-02-20 | 2021-09-03 | 广东顺发电力器材有限公司 | Intelligent adjustable spherical double-sealing plugging device |
| CN114576460A (en) * | 2022-03-23 | 2022-06-03 | 西南石油大学 | Rigid-flexible combined pipeline non-stop conveying plugging device |
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Application publication date: 20180209 |