CN201103766Y

CN201103766Y - Soldering type pipe blocking device under pressure

Info

Publication number: CN201103766Y
Application number: CNU2007200294161U
Authority: CN
Inventors: 钊洪智; 李长年; 钊田
Original assignee: JINAN GONGMING NEW TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: JINAN GONGMING NEW TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2007-10-24
Filing date: 2007-10-24
Publication date: 2008-08-20
Anticipated expiration: 2017-10-24

Abstract

The utility model provides a welding type pipeline blocker with pressure and the structure of the blocker consists of a slag collection tube, a process tube, a tool exchanger, a pipeline tapping machine with pressure and a pipeline blocker; wherein, the process tube is welded on a pressure pipeline and the slag collection tube is welded under the pressure pipeline; the process tube is connected with flanges arranged at the lower ends of the tapping machine, the tool exchanger and the pipeline blocker with pressure by a flange which is arranged on the upper end of the process tube. Compared with the prior art, the welding pipeline blocker with pressure has the advantages that the blocker realizes the connection of branch pipes with pressure, the connection of bypasses with pressure, replacement valves with pressure, replacement pipelines with pressure, the maintenance of pipelines with pressure and the replacement of pipe fittings without reducing the pressure of the pipelines or stopping production operation or influencing the normal medium transportation of the pipelines; the blocker is characterized by convenience, rapidness, low cost and high safety, which solves the unsolved world problem of the maintenance and the construction of pipelines with pressure and has very good popularizing use value.

Description

The welding type pipeline under-pressure blocker

1, technical field

The utility model relates to the pipe pressurized maintenance of equipment of a kind of welding type, specifically a kind of welding type pipeline under-pressure blocker.

2, background technique

In the prior art, when if desired normal band being pressed the industry transfusion or the gas pipeline of operation to keep in repair, connect bypass, change valve or changing the construction of pipeline, must be to stop pressing construction, just pipeline is out of service, medium is all emitted, just can keep in repair, connect arm, change valve or change pipeline, the at present known pipeline problem that construction brings that stops production is 1) economic loss is huge, such as the water supply pipe in city, gas pipe line, natural gas line or the like, stop the supple of gas or steam in case need cut off the water, bring very big influence to resident living; 2) for manufacturing enterprise, cutting off the water stops the supple of gas or steam then will influence production; 3) to the maintenance of stopping the supple of gas or steam of gas pipeline, adapter, change valve or change pipeline, construction finishes and also will carry out gas displacement to pipeline and handle, and normally utilizes inert gas to purge, otherwise serious accident such as pipe explosion can take place.For now, pipe pressurized blocking-up construction does not worldwide also have reported in literature.

3, summary of the invention

The purpose of this utility model provides a kind of welding type pipeline under-pressure blocker that is used for the urban industry pipeline network construction.

Welding type pipeline with pressure block device of the present utility model is made up of collection slag pipe, process duct, tool changing device and pipeline with pressure block device, on pipeline with pressure, divide welding procedure pipe and collection slag pipe up and down, process duct is last, collection slag pipe is down, is provided with in the process duct upper end that the flange of valve port and pipeline with pressure block device lower end is connected on flange and the tool changing device.

The pipeline with pressure block device is by lift device, block device shell and pipeline blocking-up module are formed, lift device is by the lift device housing, driven gear, driving gear and lift-bolt are formed, the lift device housing is arranged on the upper end of block device shell, driving gear and driven gear are the triangle layout and are arranged among the lift device housing, wherein driving gear meshes with two driven gears between two driven gears simultaneously, be provided with driving gear shaft in the middle of the driving gear and stretch out, be provided with internal thread in the middle of the driven gear and be connected with two lift-bolts that stretch to block device shell inner chamber respectively from the top of lift device housing; The lower end of lift-bolt is connected with pipeline blocking-up module.

The beneficial effects of the utility model are: do not need the pipeline decompression or the operation that stops production, and directly be with crimping arm, replace with pressure valve, replace with pressure pipeline, the maintenance of pipeline with pressure, pipe fitting are changed, and do not influence medium transport.Have convenient, fast, energy-saving and environmental protection, with low cost and safe characteristics, solved the world-famous puzzle that all not have the pipe pressurized maintenance construction of solution at present in the world, have good value for applications.

4, description of drawings

Accompanying drawing 1 is the linkage structure schematic representation of pipeline with pressure and pipeline with pressure boring device;

Accompanying drawing 2 is to griffe the linkage structure schematic representation of device and gate valve;

Accompanying drawing 3 is linkage structure schematic representation of pipeline with pressure occluding device and gate valve;

Accompanying drawing 4 is pipeline with pressure occluding device blocking state structural representations to pipeline with pressure;

Accompanying drawing 5 is structural representations of pipeline with pressure occluding device lift device;

Accompanying drawing 6 is structural representations that pipeline with pressure occluding device blocking-up construction back pipeline recovers proper functioning.

Description of reference numerals; Collection slag pipe 1, pipeline with pressure 2, voussoir lifting nut 3, voussoir lifting screw 4, spring 5, lifting screw support 6, gate valve 7, flange 8, block device shell 9, lift device housing 10, driven gear 11, driving gear shaft 12, driven gear 13, driving gear 14, lift-bolt 15, lift-bolt 16, process duct 17, packed-piston 18, seal ring 19, horizontal dovetail structure 20, expansion voussoir 21, seal rubber pad 22, blocking-up sprue 23, both sides dovetail structure 24, viewing window 25, blind plate 26, unit head 27, conduits cut 28, milling head 29, lining 30, milling head packed-piston 31, holding down bolt 32, griffe device shell 33, screw rod hoister 34, screw rod 35, milling head handle 36.

5, embodiment

With reference to Figure of description the utility model is done following explaining.

Shown in accompanying drawing 1-6, welding type pipeline with pressure occluding device of the present utility model, its structure is made up of collection slag pipe 1, process duct 17, gate valve 7, pipeline with pressure shedding motion and pipeline occluding device, on pipeline with pressure 2, divide welding procedure pipe 17 and collection slag pipe 1 up and down, process duct 17 is last, collection slag pipe 1 is following, and the flange 8 of process duct 17 upper ends is provided with gate valve 7, and the last valve port of gate valve 7 is connected with the flange 8 of pipeline with pressure occluding device lower end.

Shown in accompanying drawing 1-2, the pipeline with pressure shedding motion is made up of unit head 27, seal cartridge 30, milling head packed-piston 31, milling head 29 and milling head lifting device, milling head packed-piston and milling head are arranged among the seal cartridge, upper end at lining is provided with holding down bolt, the milling cutter shank 36 on milling head 29 tops is slidingly connected with the intermediate shaft hole of milling head packed-piston 31, the axis hole wall is provided with sealed rubber ring 19, be processed with internal thread in the middle of the upper end of milling cutter shank 36, be connected with the threaded pto of unit head 27; The milling head lifting device is made up of milling head lifting device housing 33 and lift 34, screw rod 35 lower ends of lift 34 be processed with milling head handle 36 on the outside thread that matches of internal thread.

As accompanying drawing 3, shown in 4, the pipeline with pressure block device is by lift device, block device shell 9 and pipeline blocking-up module are formed, lift device is arranged on the top of block device shell 9, pipeline blocking-up module is arranged among the block device shell 9, lift device is by lift device housing 10, driven

gear

11,13, driving gear 14 and lift-

bolt

15,16 form, lift device housing 10 is arranged on the upper end of block device shell 9, driving gear 14 and driven

gear

11,13 are the triangle layout is arranged among the lift device housing 10, wherein driving gear 14 is positioned at two driven gears 11, while and two driven gears 11 between 13,13 engagements, be provided with driving gear shaft 12 in the middle of the driving gear 14 and stretch out driven gear 11 from the top of lift device housing 10, be provided with in the middle of 13 internal thread respectively with two lift-bolts 15 that stretch to block device shell 9 inner chambers, 16 connect; The lower end of lift-

bolt

15,16 is connected with pipeline blocking-up module.

As accompanying

drawing

3,4, shown in 5, pipeline blocking-up module is by packed-piston 18, expansion voussoir 21, blocking-up sprue 23, voussoir lifting screw 4, voussoir lifting nut 3 and lifting screw support 6 are formed, wherein the upper end of voussoir lifting screw 4 is arranged on the top of packed-piston 18 by lifting screw support 6, the lower end of voussoir lifting screw 4 is connected with voussoir lifting nut 3, the lower end of voussoir lifting nut 3 is connected with expansion voussoir 21, the both sides of expansion voussoir 21 are slidingly connected by both sides dovetail structure 24 and blocking-up sprue, the top of blocking-up sprue 23 is connected with the basal sliding of packed-piston 18 by horizontal dovetail structure 20, and the outer arc face of blocking-up sprue 23 is attached with sealing gasket 22 and is tightly connected with pipeline with pressure otch 28.

Shown in accompanying drawing 3-5, be provided with seal ring 19 between voussoir lifting nut 3 and the packed-piston 18.

Shown in accompanying drawing 1-5, be provided with rubber seal ring 19 on the cylindrical of packed-

piston

18,31 and lining 30.The vertical center line of process duct 17 and collection slag pipe 1 on same axis, and and the horizontal center line axis of pipeline with pressure 2 intersect vertically;

Shown in accompanying

drawing

3,6, the crown center of block device shell 9 has a viewing window 25, and viewing window 25 is relative with the top of packed-piston 18, and the upper end of voussoir lifting screw 4 is processed to the four directions or six sides are corresponding with the four directions or six square sockets of wind lower end.

Pipeline with pressure opening unit head and working principle thereof are openly reported in the 00267202.2nd patent publication, no longer repeat at this.

The concrete blocking-up applying step of welding type pipeline under-pressure blocker of the present utility model is as follows:

1) as shown in Figure 1, on the pipeline with pressure that needs repairing or change, divides welding procedure pipe 17 and collection slag pipe 1 up and down;

2) as shown in Figure 1, in process duct 17, insert lining 30 earlier, in lining 30, insert the milling head 29 of band milling head packed-piston 31 again, install unit head 27 on flange 8 tops of process duct 17 then, the unit head on pipeline with pressure opener top is filled in the milling head 29 of belt material cover 30 and milling head packed-piston 31 in the process duct 17, start unit head 27 and drive milling head 29 rotations, the pipeline with pressure 2 that will be positioned at process duct 17 internal diameter lower ends mills disconnected, then with lining 30, milling head 29 and milling head packed-piston 31 rise in the process duct 17, take off unit head 27 parts on pipeline with pressure opener top, by milling head packed-piston 31 process duct 17 is sealed, avoid that the fed sheet of a media in the pipeline with pressure 2 leaks behind the opening, in order to prevent lining 30 and the mutual disengaging of milling head packed-piston 31 in lifting process, be provided with holding down bolt 32 in the upper end of lining 30;

3) as shown in Figure 2, a gate valve 7 is set on the flange of process duct 17 upper ends and griffes device, open gate valve 7, among the screw thread of griffing in the middle of the lift-bolt 35 precession milling head handles 36 of device, by screw rod lifter 34 milling head 29 is risen to griffing in the organ pipe shell 33 of gate valve 7 tops, close gate valve 7, unload and griffe device;

4) as shown in Figure 3, on the flange 8 on gate valve 7 tops, the pipeline occluding device is set, opens gate valve 7, rotate the lift device at pipeline occluding device top, by lifting

screw

15,16 pipeline is blocked module and move down and pass gate valve 7 and deliver in the technology downwards;

5) as shown in Figure 4, unload gate valve, load onto pipeline blocking-up lowering or hoisting gear, rotate the lift device at pipeline occluding device top, pipeline is blocked being transferred to the disconnected pipeline with pressure opening of milling 28 centres under the module;

6) shown in accompanying

drawing

4,6, use the voussoir lifting screw 4 on the driving handle rotation pipeline blocking-up module, the expansion voussoirs 21 that the driving of drive voussoir lifting nut is positioned in the middle of the expansion sprue 23 move down, and then the expansion sprue 23 that drives expansion voussoir 21 both sides externally moves mutually, with two otch 28 shutoff of pipeline with pressure 2, the band pressure drag of finishing pipeline is disconnected;

7) as shown in Figure 5, after the maintenance of pipeline with pressure or replacing construction finish, by lift pipeline being blocked module rises in the technology shell 17, the mouth of pipe of pipeline with pressure 2 is opened, pipeline with pressure 2 recovers medium transport, after sending out of process duct 17 upper ends installed blind pipe 26 additional on blue 8, pipeline was changed or maintenance construction finishes then.

Welded band pressure pipeline occluding device of the present utility model is compared with existing technology, and has reasonable in design, knot Structure is simple, be easy to process, safe and reliable, easy to use, can under the normal state of carrying of pipeline, carry out pipeline The characteristics such as blocking-up with pressure, can be used for various calibers and carry the connecing of various gases, fluid pipeline maintenance and pipeline, Change or change, thereby, have good value for applications.

Claims

1. welding type pipeline under-pressure blocker, it is characterized in that it being by collection slag pipe, process duct, pipeline with pressure trepanning device and pipe pressurized occluding device are formed, on pipeline with pressure, divide welding procedure pipe and collection slag pipe up and down, process duct is last, collection slag pipe is following, in the process duct upper end flange and pipe pressurized trepanning device are set, the tool changing device is connected with pipe pressurized occluding device, wherein the pipeline occluding device is by lift device, block device shell and pipeline blocking-up module are formed, lift device is by the lift device housing, driven gear, driving gear and lift-bolt are formed, the lift device housing is arranged on the upper end of block device shell, driving gear and driven gear are the triangle layout and are arranged among the lift device housing, wherein driving gear meshes with two driven gears between two driven gears simultaneously, be provided with driving gear shaft in the middle of the driving gear and stretch out, be provided with internal thread in the middle of the driven gear and be connected with two lift-bolts that stretch to block device shell inner chamber respectively from the top of lift device housing; The lower end of lift-bolt is connected with pipeline blocking-up module.

2. welding type pipeline under-pressure blocker according to claim 1, it is characterized in that the pipeline with pressure trepanning device is made up of unit head, seal cartridge, milling head packed-piston, milling head and milling head lifting device, milling head packed-piston and milling head are arranged among the seal cartridge, upper end at lining is provided with positioning screwn, the intermediate shaft hole of the milling cutter shank on milling head top and milling head packed-piston is slidingly connected, the axis hole wall is provided with sealed rubber ring, be processed with internal thread in the middle of the upper end of milling cutter shank, be connected with the threaded pto of unit head; The milling head lifting device is made up of milling head lifting device housing and lift, the screw rod lower end of lift be processed with the milling head handle on the outside thread that matches of internal thread.

3. welding type pipeline under-pressure blocker according to claim 1, it is characterized in that pipeline blocking-up module is by packed-piston, the expansion voussoir, the blocking-up sprue, the voussoir lifting screw, voussoir lifting nut and lifting screw support are formed, wherein the upper end of voussoir lifting screw is arranged on the top of packed-piston by the lifting screw support, the lower end of voussoir lifting screw is connected with the voussoir lifting nut, the lower end of voussoir lifting nut is connected with the expansion voussoir, the both sides of expansion voussoir are slidingly connected by both sides dovetail structure and blocking-up sprue, the top of blocking-up sprue is connected with the basal sliding of packed-piston by horizontal dovetail structure, and the outer arc face of blocking-up sprue is attached with sealing gasket and the pipeline with pressure otch compresses back realization sealing.

4. welding type pipeline under-pressure blocker according to claim 3 is characterized in that being provided with seal ring between voussoir lifting nut and the packed-piston.

5. welding type pipeline under-pressure blocker according to claim 1, the vertical center line that it is characterized in that process duct and collection slag pipe on same axis, and and the horizontal center line axis of pipeline with pressure intersect vertically.

6. pipeline with pressure block device according to claim 4 is characterized in that the cylindrical of packed-piston is provided with rubber seal ring.

7. pipeline with pressure block device according to claim 4, the crown center that it is characterized in that the block device shell has a viewing window, viewing window is relative with the top of packed-piston, and the upper end of voussoir lifting screw is processed to the four directions or six sides are corresponding with the four directions or six square sockets of wind lower end.