CN105798354A - Gas pipeline drilling and blocking system without transportation interruption - Google Patents
Gas pipeline drilling and blocking system without transportation interruption Download PDFInfo
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- CN105798354A CN105798354A CN201610274535.7A CN201610274535A CN105798354A CN 105798354 A CN105798354 A CN 105798354A CN 201610274535 A CN201610274535 A CN 201610274535A CN 105798354 A CN105798354 A CN 105798354A
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- cutter tooth
- hydraulic
- reservoir body
- gas pipeline
- valve
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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
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
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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
- F16L55/172—Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose the ring, band or sleeve being tightened by a tangentially arranged threaded pin and a nut
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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
- F16L55/18—Appliances for use in repairing pipes
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
- Branch Pipes, Bends, And The Like (AREA)
Abstract
The invention discloses a gas pipeline drilling and blocking system without transportation interruption. The gas pipeline drilling and blocking system comprises four-way pipes, sandwich valves, drilling machines, blocking machines, dense-tooth cutters and blocking expansion trunks. The four-way pipes are used for being welded to the two ends of a pipeline to be repaired correspondingly during operation and provided with first flanges. The sandwich valves are used for being installed on the first flanges of the four-way pipes during operation and opening and closing sealing openings alternately in the operation process. The drilling machines are used for being installed on the sandwich valves during operation and completing the pipeline cutting procedure through the dense-tooth cutters in the drilling machines. The blocking machines are used for being installed on the sandwich valves during operation and completing the pipeline blocking and pipeline changing procedures through the expansion trunks in the blocking machines. The gas pipeline drilling and blocking system has the advantages of being easy and convenient to operate, stable in operation, high in safety and high in cutting speed. By adopting the gas pipeline drilling and blocking system for drilling and blocking operation of gas pipelines, the operation efficiency can be effectively improved, the cutting noise is lowered, and the labor intensity of operators is relieved.
Description
Technical field
The present invention relates to a kind of pipeline to connect and cut the equipment of relocating, the gas pipeline plugging holes system of especially a kind of on-line production.
Background technology
In fuel gas transmission field, how to ensure that the safe and efficient operation of fuel gas transmission pipeline is the important process content of such enterprise.In the management maintenance process of fuel gas transmission pipeline, it is often necessary to pipeline is connect and cuts operation of relocating.Traditional pipeline connects to be cut diversion project and mainly adopts manual work mode, and it is to be reduced in comparatively safe scope by the gaseous-pressure in pipeline, then is utilized the instrument such as gas cutting, electric welding that pipeline is connect by operator to cut the operational method relocated.The operating pressure of pipeline is carried out blood pressure lowering firstly the need of by the combustion gas in diffuse channel by traditional operating type, then again through cutting torch, pipeline is carried out perforate, adopt bladders brick wall to carry out gas shutoff, adopt pipe nipple to connect, and cut, to complete to connect, operation of relocating by the welding of band fire.This operating type is primarily present some problem following, on the one hand since it is desired that the just conventional gas of user can be produced impact by blood pressure lowering, typically require and carry out in the just conventional gas gap of night or user, activity duration there is particular/special requirement, particularly when promptly speedily carrying out rescue work it cannot be guaranteed that user's just commonly uses gas needs；Need when blood pressure lowering to diffuse substantial amounts of combustion gas on the other hand, not only waste resource, and environment can be affected, simultaneously, this operating type can produce naked light when utilizing cutting torch, fire weldering, still there is higher danger for both making to carry out blood pressure lowering this combustible material of combustion gas, operant skill and professional qualities to operator require higher.
Connect and cut, for solving traditional fuel gas transportation pipeline, operating type Problems existing of relocating, those skilled in the art have researched and developed gas pipeline holing and sealing machine and the method for a set of on-line production, mainly include four-way pipe fitting, sandwich valve, tapping machine, stopper, cutting serrated knife, expansion cylinder and the appurtenances such as bypass pipe, the flat pipe of string.Relocate in operation process connecing to cut, and first four-way pipe fitting, diffusion valve are respectively welded at the two ends needing repairing or changing pipeline, and are separately mounted on the four-way pipe fitting of correspondence by flange by sandwich valve；Then tapping machine it is separately mounted on the sandwich valve of correspondence by flange and connects the flat pipe of string, and driving the cutting serrated knife in tapping machine that pipeline is cut by Hydraulic Station, after having cut, tapping machine being unloaded from sandwich valve；Then stopper it is separately mounted on the sandwich valve of correspondence and connects the flat pipe of string and bypass pipe, drive expansion cylinder in tapping machine that pipeline is blocked by Hydraulic Station subsequently, make combustion gas pass sequentially through the pipeline of side, four-way pipe fitting, sandwich valve, the stopper bypass pipe arrival stopper of opposite side, sandwich valve, four-way pipe fitting, pipeline realization connection, now middle pipeline can be repaired or replaced；After completing maintenance or a replacing, by stopper from removal sandwich valve, and blocking is installed in four-way pipe fitting with blocking pipe cutting mouth by means for placing plug, namely completes whole flow chart finally by installing blind plate in four-way pipe fitting.Above-mentioned operation process realizes the keying of pipe cutting mouth each through sandwich valve.The gas pipeline holing and sealing machine of this on-line production is compared to traditional operating type, to pipeline blood pressure lowering, the just conventional gas of user need not will not being produced impact, activity duration and mode are comparatively flexible, cutting torch, fire weldering etc. need not be used to produce the instrument of naked light, and safety is higher；Have only to diffuse a small amount of combustion gas in whole operation process simultaneously, the energy can be saved, there is good economic effect and social effect.
But still there are the many problems of storage in existing holing and sealing machine, master is showing following several respects: the position that, its hydraulic tube union joint of existing tapping machine is arranged is higher, operation process is not easy to install and connects, have impact on work efficiency, tapping machine especially for big specification, need operator to carry out climbing the connection that just can realize hydraulic tube, enhance operation easier and danger；Two, existing sandwich valve mainly adopts manual manipulation mode, needs operator be repeatedly performed the unlatching of wherein seal disc by crank and close valve in operation process, and relatively low and operator the labor intensity of work efficiency is bigger；Three, existing pipe cutting serrated knife is provided only with 4 groups of 16 cutters tooth, and often equal and along perisporium the normal direction of edge width of 4 cutters tooth is arranged from inside to outside in group, its single cycle amount of feeding is less, and rotary speed unstabilization is fixed, bigger cutting noise can be produced, the camber line distance being primarily due between adjacent cutter tooth circumferentially is bigger, the seriality causing cutting is poor, simultaneously as often the edge width of 4 cutters tooth is to arrange from inside to outside along the normal direction of perisporium in group, pipe cutting process is easy to make the discontinuity equalization of cutter tooth both sides, accelerate the rate of wear of cutting serrated knife, have impact on service life, and enhance cost accordingly.
Summary of the invention
It is an object of the invention to provide a kind of on-line production gas pipeline plugging holes system, it has advantage easy and simple to handle, stable, that safety is high, cutting speed is fast, the present invention is adopted to carry out the plugging holes operation of gas pipeline, work efficiency can be effectively improved, reduce the labor intensity of operator.
For solving its complex operation of holing and sealing machine of the prior art, inefficient, cutting noise is bigger, the technical problem that serrated knife service life is shorter, a kind of on-line production gas pipeline plugging holes system provided by the invention, including four-way pipe fitting, sandwich valve, tapping machine, stopple plugging machine, close serrated knife and envelope expansion cylinder, wherein, it is respectively welded at the two ends of pipeline to be repaired and is provided with the first flange when four-way pipe fitting is for operation, sandwich valve is installed on the first flange of four-way pipe fitting when operation and replaces Open-close sealing mouth in operation process, tapping machine is arranged on sandwich valve when operation and completes pipe cutting operation by close serrated knife therein；nullStopple plugging machine is installed on sandwich valve when operation and completes the closure of pipeline by expansion cylinder therein and change plumber's sequence，Tapping machine is provided with inverted tubbiness close serrated knife reservoir body and vertically arranged tubulose perforate transmission main shaft reservoir body，The lower end of the perforate transmission main shaft reservoir body inner space that be connected and make both fixing with in the middle part of the diapire of close serrated knife reservoir body，The junction of perforate transmission main shaft reservoir body and close serrated knife reservoir body is provided with turbine box，The lateral wall of perforate transmission main shaft reservoir body is provided with hydraulic pressure and connects case，Turbine box connects case by connecting tube with hydraulic pressure and is connected，Tapping machine is additionally provided with hydraulic rotation fishplate bar，Being respectively provided on two sides with the hydraulic connecting head being symmetrical arranged and connecting and connect case with hydraulic pressure by the hydraulic connecting head of side and use connecting tube to be connected of hydraulic rotation fishplate bar，Perforate transmission main shaft reservoir body is provided with perforate transmission main shaft and is driven by turbine box in use，Close serrated knife reservoir body is for holding close serrated knife and making close serrated knife be connected with the lower end of perforate transmission main shaft in use，The second flange that during cutting operation, tapping machine is arranged by close serrated knife reservoir body lower end is tightly connected with sandwich valve.
Further, one on-line production gas pipeline plugging holes system of the present invention, wherein, described four-way pipe fitting includes lower weld part, upper weld part, blind plate and blocking, adpting flange is arranged on the upper end of upper weld part, lower weld part and upper weld part are buckled in the downside of pipeline to be repaired and upside respectively and fix with duct wall by welding when operation, and blocking is for being installed in upper weld part and extraneous connected entrance place after changing pipe, blind plate is for being arranged on the first flange of upper weld part.
Further, one on-line production gas pipeline plugging holes system of the present invention, wherein, described sandwich valve includes valve body and the seal disc being arranged in valve body, valve body is provided with the manhole of up/down perforation, seal disc is fixed be connected away from the side of described manhole and one end of drive link, the other end of drive link is through valve body and is connected with the hydraulic being arranged at outside valve body, described flowing pressure actuating device includes the first hydraulic cylinder, second hydraulic cylinder, hydraulic connecting head and connecting plate, first hydraulic cylinder and the second hydraulic cylinder are respectively arranged at the upper side and lower side of valve body and are fixedly connected with the valve body, first hydraulic cylinder and the second hydraulic cylinder are connected with hydraulic connecting head respectively through oil pipe, the output shaft of the first hydraulic cylinder and the second hydraulic cylinder is fixing with the two ends of connecting plate respectively to be connected, the middle part of connecting plate is fixing with drive link to be connected.
Further, one on-line production gas pipeline plugging holes system of the present invention, wherein, described stopple plugging machine is provided with inverted tubbiness expansion cylinder reservoir body and vertically arranged tubulose closure transmission main shaft reservoir body, the lower end of the closure transmission main shaft reservoir body inner space that be connected and make both fixing with in the middle part of the diapire of expansion cylinder reservoir body, the sidewall of expansion cylinder reservoir body is provided with the mounting flange for connecting bypass pipeline, the sidewall of closure transmission main shaft reservoir body is respectively equipped with diffusion valve and string flat valve, the three-flange that during closure operation, stopple plugging machine is arranged by shape expansion cylinder reservoir body lower end is tightly connected with sandwich valve.
Further, one on-line production gas pipeline plugging holes system of the present invention, wherein, described close serrated knife includes inverted barrel-like body, connect seat and auger spindle, the diapire of barrel-like body offers the through hole for auger spindle traverse along axis, circumferentially arranged with at least five uniform group cutters tooth on the perisporium lower end surface of barrel-like body, and make often group cutter tooth in all include edge width by narrow to wide successively be incremented by the first cutter tooth, second cutter tooth, 3rd cutter tooth and the 4th cutter tooth, connect seat offer the installing hole for docking with perforate transmission main shaft along axis and on the hole wall of installing hole, offer keyway, connect seat be fixed in the middle part of the bottom wall outer of barrel-like body and make both axis collinear, the lower end of auger spindle is provided with drill bit.
Further, one on-line production gas pipeline plugging holes system of the present invention, wherein, described first cutter tooth, the second cutter tooth, the 3rd cutter tooth and the 4th cutter tooth are all symmetrical set on the perisporium width of barrel-like body, and make the cutting edge of the first cutter tooth, the second cutter tooth, the 3rd cutter tooth and the 4th cutter tooth be arranged at the centre position of self.
Further, one on-line production gas pipeline plugging holes system of the present invention, wherein, edge width 2～the 5mm wider than the perisporium width of barrel-like body of described 4th cutter tooth, and make the 3rd cutter tooth, the second cutter tooth and the first cutter tooth edge width respectively the 4th cutter tooth edge width 3/4ths, 2/4ths, 1/4th.
Further, one on-line production gas pipeline plugging holes system of the present invention, wherein, described cutter tooth is provided with 6 groups, the perisporium of described barrel-like body and diapire all offer through hole, through hole on described perisporium is provided with multi-turn along bus, and every ring through hole is circumferentially all uniformly distributed and makes two adjacent rings through hole to stagger on generatrix direction setting, and the through hole on described diapire is uniformly distributed along the circumference of diapire.
Further, one on-line production gas pipeline plugging holes system of the present invention, wherein, described sandwich valve all offers annular dovetail slot in the upper and lower port periphery of manhole, and makes the slot bottom width of dovetail groove more than width of rebate, arranges Mi Quan in described dovetail groove.
One on-line production gas pipeline plugging holes system of the present invention is compared with prior art, have the advantage that (1) present invention is by being provided with hydraulic rotation fishplate bar at tapping machine, and by being respectively provided on two sides with, at hydraulic rotation fishplate bar, the hydraulic connecting head being symmetrical arranged and connecting, allow the wherein hydraulic connecting head of side connect case with hydraulic pressure be connected by connecting tube, the hydraulic connecting head of the opposite side hydraulic tube with Hydraulic Station when operation is allowed to be connected, make operator need not climb tapping machine and can conveniently realize the installation connection of hydraulic tube, improve work efficiency and safety.(2) as prioritization scheme, the present invention by arranging hydraulic in sandwich valve, and make flowing pressure actuating device include the first hydraulic cylinder, the second hydraulic cylinder, hydraulic connecting head and connecting plate, the first hydraulic cylinder and the second hydraulic cylinder is allowed to be respectively arranged at the upper side and lower side of valve body and to be fixedly connected with the valve body, the first hydraulic cylinder and the second hydraulic cylinder is allowed to be connected with hydraulic connecting head respectively through oil pipe, allow the output shaft of the first hydraulic cylinder and the second hydraulic cylinder is fixing with the two ends of connecting plate respectively to be connected, and allow the middle part of connecting plate fix with drive link to be connected.This structure arranges and changes the mode of operation that tradition sandwich valve is manual, in operation process, the hydraulic connecting head by being connected to by the hydraulic tube of Hydraulic Station on sandwich valve can realize hydraulically powered mode of operation, improve operating speed, reduce the labor intensity of operator.(3) as further prioritization scheme, the cutter tooth of close serrated knife is set at least five groups by the present invention, and make often group cutter tooth in all include edge width by narrow to wide successively be incremented by the first cutter tooth, second cutter tooth, 3rd cutter tooth and the 4th cutter tooth, compared to traditional serrated knife owing to being additionally arranged cutter tooth, reduce the cutting edge of adjacent cutter tooth circumferentially distance between camber line, avoid the phenomenon of cutter tooth collision duct wall in cutting process, improve the seriality of cutting and the steady of rotating operation, can effectively reduce cutting sound, increase the single cycle amount of feeding, and the rate of wear of cutter tooth can be reduced, increase the service life, thus reducing cost；Simultaneously, the present invention one also allow often group cutter tooth in the first cutter tooth, second cutter tooth, 3rd cutter tooth and the 4th cutter tooth are all symmetrical set on the perisporium width of barrel-like body, and make the first cutter tooth, second cutter tooth, the cutting edge of the 3rd cutter tooth and the 4th cutter tooth is arranged at the centre position of self, this structure is arranged on and carries out in cutting process to pipeline, each cutter tooth stress in both sides in cutting process can be made to keep in balance, the stationarity of rotating operation can be further enhanced, reduce cutting sound, improve cutting efficiency, and delay the serrated knife rate of wear, extend its service life.
Below in conjunction with detailed description of the invention shown in accompanying drawing, one on-line production gas pipeline plugging holes system of the present invention is described in further detail:
Accompanying drawing explanation
Fig. 1 is the axonometric chart of four-way pipe fitting in the present invention a kind of on-line production gas pipeline plugging holes system；
Fig. 2 is the exploded view of four-way pipe fitting in the present invention a kind of on-line production gas pipeline plugging holes system；
Fig. 3 is the axonometric chart of the present invention a kind of on-line production gas pipeline plugging holes system middle clamp plate valve；
Fig. 4 is the top view of the present invention a kind of on-line production gas pipeline plugging holes system middle clamp plate valve；
Fig. 5 is the plan view of the present invention a kind of on-line production gas pipeline plugging holes system middle clamp plate valve；
Fig. 6 is a kind of view stereo figure of tapping machine in the present invention a kind of on-line production gas pipeline plugging holes system；
Fig. 7 is another view stereo figure of tapping machine in the present invention a kind of on-line production gas pipeline plugging holes system；
Fig. 8 be in the present invention a kind of on-line production gas pipeline plugging holes system tapping machine plan view；
Fig. 9 is a kind of view stereo figure of stopple plugging machine in the present invention a kind of on-line production gas pipeline plugging holes system；
Figure 10 is another view stereo figure of stopple plugging machine in the present invention a kind of on-line production gas pipeline plugging holes system；
Figure 11 is the axonometric chart of close serrated knife in the present invention a kind of on-line production gas pipeline plugging holes system；
Figure 12 is the plan view of close serrated knife in the present invention a kind of on-line production gas pipeline plugging holes system；
Figure 13 is the top view of close serrated knife in the present invention a kind of on-line production gas pipeline plugging holes system；
Figure 14 is the present invention a kind of on-line production gas pipeline plugging holes system upward view at close serrated knife；
Figure 15 is the close-up schematic view at S position in Figure 14；
Figure 16 is the A direction view in Figure 15；
Figure 17 is the B direction view in Figure 15；
Figure 18 is the C direction view in Figure 15；
Figure 19 is the D direction view in Figure 15；
Figure 20 is the axonometric chart of expansion cylinder in the present invention a kind of on-line production gas pipeline plugging holes system.
Detailed description of the invention
The detailed description of the invention of one one kinds of on-line production gas pipeline plugging holes systems of the present invention as shown in Fig. 1 to Figure 20, generally comprises four-way pipe fitting 1, sandwich valve 2, tapping machine 3, stopple plugging machine 4, close serrated knife 5 and envelope expansion cylinder 6.Four-way pipe fitting 1 is when operation for being welded on the two ends of pipeline to be repaired, and four-way pipe fitting 1 is provided with the first flange to realize connecting at operation process middle clamp plate valve 2；Sandwich valve 2 is installed on the first flange of four-way pipe fitting 1 when operation and replaces Open-close sealing mouth in operation process, is arranged on sandwich valve 2 and completes pipe cutting operation by close serrated knife 5 therein when tapping machine 3 is for operation；It is installed on sandwich valve 2 and completes the closure of pipeline by expansion cylinder 6 therein and change plumber's sequence when stopple plugging machine 4 is for operation.nullTapping machine 3 is provided with inverted tubbiness close serrated knife reservoir body 31 and vertically arranged tubulose perforate transmission main shaft reservoir body 32，The lower end of perforate transmission main shaft reservoir body 32 inner space that be connected and make both fixing with in the middle part of the diapire of close serrated knife reservoir body 31，The junction of perforate transmission main shaft reservoir body 32 and close serrated knife reservoir body 31 is provided with turbine box 33，The lateral wall of perforate transmission main shaft reservoir body 32 is provided with hydraulic pressure and connects case 34，Turbine box 33 connects case 34 by connecting tube with hydraulic pressure and is connected，Tapping machine 3 is additionally provided with hydraulic rotation fishplate bar 35，Being respectively provided on two sides with the hydraulic connecting head being symmetrical arranged and connecting and connect case 34 by the hydraulic connecting head of side with hydraulic pressure and use connecting tube to be connected of hydraulic rotation fishplate bar 35，Perforate transmission main shaft reservoir body 32 is provided with perforate transmission main shaft and is driven by turbine box 33 in use，Close serrated knife reservoir body 31 is for holding close serrated knife 5 and making close serrated knife 5 be connected with the lower end of perforate transmission main shaft in use，The second flange that during cutting operation, tapping machine 3 is arranged by close serrated knife reservoir body 31 lower end is tightly connected with sandwich valve 2.The present invention is by arranging hydraulic rotation fishplate bar 35 at tapping machine 3, and by being respectively provided on two sides with, at hydraulic rotation fishplate bar 35, the hydraulic connecting head being symmetrical arranged and connecting, allow the wherein hydraulic connecting head of side connect case 34 with hydraulic pressure be connected by connecting tube, the hydraulic connecting head of the opposite side hydraulic tube with Hydraulic Station when operation is allowed to be connected, make operator need not climb tapping machine and can conveniently realize the installation connection of hydraulic tube, improve work efficiency and safety.
In this detailed description of the invention, four-way pipe fitting 1 includes lower weld part 11, upper weld part 12, blind plate 13 and blocking 14, adpting flange is arranged on the upper end of upper weld part 12, lower weld part 31 and upper weld part 32 are buckled in the downside of pipeline to be repaired and upside respectively and fix with duct wall by welding when operation, blocking 34 is for being installed in upper weld part 12 and extraneous connected entrance place after changing pipe, blind plate 33 is for being arranged on the first flange of upper weld part 32.
nullIn this detailed description of the invention，Sandwich valve 2 includes valve body 21 and the seal disc 22 being arranged in valve body，Valve body 21 is provided with the manhole of up/down perforation，Seal disc 22 is fixed be connected away from the side of described manhole and one end of drive link 23，The other end of drive link 23 is through valve body 21 and is connected with the hydraulic being arranged at outside valve body 21，Flowing pressure actuating device specifically includes the first hydraulic cylinder 24、Second hydraulic cylinder 25、Hydraulic connecting head 26 and connecting plate 27，First hydraulic cylinder 24 and the second hydraulic cylinder 25 are respectively arranged at the upper side and lower side of valve body 21 and fixing with valve body 21 are connected，First hydraulic cylinder 24 and the second hydraulic cylinder 25 are connected with hydraulic connecting head 26 respectively through oil pipe，The output shaft of the first hydraulic cylinder 24 and the second hydraulic cylinder 25 is fixing with the two ends of connecting plate 27 respectively to be connected，The middle part of connecting plate 27 is fixing with drive link 23 to be connected.As prioritization scheme, the present invention connects by arranging hydraulic in sandwich valve 2, change the mode of operation that tradition sandwich valve is manual, in operation process, the hydraulic connecting head 26 by being connected to by the hydraulic tube of Hydraulic Station on sandwich valve can realize hydraulically powered mode of operation, improve operating speed, reduce the labor intensity of operator.
In this detailed description of the invention, stopple plugging machine 4 includes inverted tubbiness expansion cylinder reservoir body 41 and vertically arranged tubulose closure transmission main shaft reservoir body 42, the lower end of closure transmission main shaft reservoir body 42 inner space that be connected and make both fixing with in the middle part of the diapire of expansion cylinder reservoir body 41, the sidewall of expansion cylinder reservoir body 41 is provided with the mounting flange 23 for connecting bypass pipeline, the sidewall of closure transmission main shaft reservoir body 22 is respectively equipped with diffusion valve 24 and string flat valve 25, the three-flange that during closure operation, stopple plugging machine 4 is arranged by shape expansion cylinder reservoir body 41 lower end is tightly connected with sandwich valve 2.
In this detailed description of the invention, close serrated knife 5 is provided with inverted barrel-like body 51, connect seat 52 and auger spindle 53, the diapire of barrel-like body 51 offers the through hole for auger spindle 53 traverse along axis, circumferentially arranged with six groups of uniform cutters tooth 54 on the perisporium lower end surface of barrel-like body 51, and make often group cutter tooth 54 in all include edge width by narrow to wide successively be incremented by the first cutter tooth 541, second cutter tooth 542, 3rd cutter tooth 543 and the 4th cutter tooth 544, connect seat 52 offer the installing hole for docking with perforate transmission main shaft along axis and on the hole wall of installing hole, offer keyway, connecting seat 2 is fixed in the middle part of the bottom wall outer of barrel-like body 1 and makes both axis collinear, the lower end of auger spindle 53 is provided with drill bit.As prioritization scheme, the cutter tooth 54 of close serrated knife 5 is set to six or five groups by the present invention, and make often group cutter tooth 54 in all include edge width by narrow to wide successively be incremented by the first cutter tooth 541, second cutter tooth 542, 3rd cutter tooth 543 and the 4th cutter tooth 544, compared to traditional serrated knife owing to being additionally arranged cutter tooth 54, reduce the cutting edge of adjacent cutter tooth 54 circumferentially distance between camber line, avoid cutter tooth 54 in cutting process and collide the phenomenon of duct wall, improve the seriality of cutting and the steady of rotating operation, can effectively reduce cutting sound, increase the single cycle amount of feeding, and the rate of wear of cutter tooth 54 can be reduced, extend its service life, thus reducing cost.It should be noted that the cutter tooth 54 in the present invention is not limited to arrange six groups, five groups or more than six groups can be arranged to according to the size of pipeline and specification and close serrated knife, as long as can guarantee that cutter tooth realizes continuous cutting and all can realize the object of the invention.
As further optimal way, this detailed description of the invention makes first cutter tooth the 541, second cutter tooth the 542, the 3rd cutter tooth 543 and the 4th cutter tooth 544 are all symmetrical set on the perisporium width of barrel-like body 51, and make the cutting edge of first cutter tooth the 541, second cutter tooth the 542, the 3rd cutter tooth 543 and the 4th cutter tooth 544 be arranged at the centre position of self.This structure is arranged on and carries out in cutting process to pipeline, each cutter tooth 54 stress in both sides in cutting process can be made to keep in balance, can further enhance the stationarity of rotating operation, reduce cutting sound, improve cutting efficiency, and delay the serrated knife rate of wear, extend its service life.Simultaneously, this detailed description of the invention also makes the edge width of the 4th cutter tooth 544 be arranged to 2～5mm wider than the perisporium width of barrel-like body 1, and make the 3rd cutter tooth the 543, second cutter tooth 542 and the first cutter tooth 541 edge width respectively the 4th cutter tooth 544 edge width 3/4ths, 2/4ths, 1/4th.This structure can make the cutting task amount of each cutter tooth keep in balance, it is to avoid causes more greatly wear extent to affect relatively greatly the problem of whole close serrated knife serviceability because part cutter tooth cuts task amount, further enhancing practicality.Additionally, this detailed description of the invention also all offers through hole on the perisporium of barrel-like body 51 and diapire, through hole on perisporium can need to arrange multi-turn along bus according to actual, and allow every ring through hole circumferentially all be uniformly distributed, and make two adjacent rings through hole stagger on generatrix direction setting, allow through hole on diapire be uniformly distributed along the circumference of diapire.The chip that pipe cutting process thing can be made to produce by arranging through hole enters in inner chamber by the through hole on barrel-like body 51 perisporium, broken being gathered in is avoided to cut the place of suffering from morning sickness and affect cutting efficiency, also can strengthen ventilation heat exchange effect by the through hole on barrel-like body 51 perisporium and diapire, it is to avoid cutter tooth and drill bit affect cutting and boring performance because temperature is too high simultaneously.
In this detailed description of the invention, sandwich valve 2 all offers annular dovetail slot 28 in the upper and lower port periphery of manhole, and makes the slot bottom width of dovetail groove 28 more than width of rebate, arranges sealing ring in dovetail groove 28.Seal groove is arranged to dovetail groove can effectively prevent sealing ring from dropping, and avoids sealing ring because from the phenomenon being pressed down that comes off from seal groove, while improving sealing and practicality, that can reduce butter accordingly makes consumption, thus saving cost.
It should be noted that, the present invention is also provided with the ladder for climbing on tapping machine, stopple plugging machine, so that operator use up and down, each equipment in the present invention provides mainly through Hydraulic Station and drives power in actual applications, coordinates according to job requirements and be provided with the auxiliary equipment such as diffusion valve, string flat pipe, bypass pipe and install blocking by means for placing plug in operation process.
Above example is only the description that the preferred embodiment for the present invention is carried out; not the present invention is claimed the restriction that scope carries out; under the premise designing spirit without departing from the present invention; the various forms of deformation that this area engineers and technicians make according to technical scheme, all should fall in the protection domain that claims of the present invention are determined.
Claims (9)
1. an on-line production gas pipeline plugging holes system, including four-way pipe fitting (1), sandwich valve (2), tapping machine (3), stopple plugging machine (4), close serrated knife (5) and envelope expansion cylinder (6), it is respectively welded at the two ends of pipeline to be repaired when described four-way pipe fitting (1) is for operation and is provided with the first flange, described sandwich valve (2) is installed on the first flange of four-way pipe fitting (1) when operation and replaces Open-close sealing mouth in operation process, it is arranged on sandwich valve (2) when described tapping machine (3) is for operation and above and completes pipe cutting operation by close serrated knife (5) therein；nullIt is installed to sandwich valve (2) when described stopple plugging machine (4) is for operation above and complete the closure of pipeline by expansion cylinder therein (6) and change plumber's sequence，It is characterized in that: described tapping machine (3) is provided with inverted tubbiness close serrated knife reservoir body (31) and vertically arranged tubulose perforate transmission main shaft reservoir body (32)，The lower end of perforate transmission main shaft reservoir body (32) inner space that be connected and make both fixing with in the middle part of the diapire of close serrated knife reservoir body (31)，The junction of perforate transmission main shaft reservoir body (32) and close serrated knife reservoir body (31) is provided with turbine box (33)，The lateral wall of perforate transmission main shaft reservoir body (32) is provided with hydraulic pressure and connects case (34)，Turbine box (33) connects case (34) by connecting tube with hydraulic pressure and is connected，Tapping machine (3) is additionally provided with hydraulic rotation fishplate bar (35)，Being respectively provided on two sides with the hydraulic connecting head being symmetrical arranged and connecting and connect case (34) with hydraulic pressure by the hydraulic connecting head of side and use connecting tube to be connected of hydraulic rotation fishplate bar (35)，Perforate transmission main shaft reservoir body (32) is provided with perforate transmission main shaft and is driven by turbine box (33) in use，Close serrated knife reservoir body (31) is used for holding close serrated knife (5) and making close serrated knife (5) be connected with the lower end of perforate transmission main shaft in use，The second flange that during cutting operation, tapping machine (3) is arranged by close serrated knife reservoir body (31) lower end is tightly connected with sandwich valve (2).
2. a kind of on-line production gas pipeline plugging holes system described in claim 1, it is characterized in that: described four-way pipe fitting (1) includes lower weld part (11), upper weld part (12), blind plate (13) and blocking (14), adpting flange is arranged on the upper end of upper weld part (12), lower weld part (31) and upper weld part (32) are buckled in the downside of pipeline to be repaired and upside respectively and fix with duct wall by welding when operation, blocking (34) is installed in upper weld part (12) and extraneous connected entrance place after being used for changing pipe, blind plate (33) is for being arranged on the first flange of upper weld part (32).
null3. a kind of on-line production gas pipeline plugging holes system described in claim 1，It is characterized in that: described sandwich valve (2) includes valve body (21) and the seal disc (22) being arranged in valve body，Valve body (21) is provided with the manhole of up/down perforation，Seal disc (22) is fixed be connected away from the side of described manhole and one end of drive link (23)，The other end of drive link (23) is through valve body (21) and is connected with being arranged at valve body (21) hydraulic outward，Described flowing pressure actuating device includes the first hydraulic cylinder (24)、Second hydraulic cylinder (25)、Hydraulic connecting head (26) and connecting plate (27)，First hydraulic cylinder (24) and the second hydraulic cylinder (25) are respectively arranged at the upper side and lower side of valve body (21) and fixing with valve body (21) are connected，First hydraulic cylinder (24) and the second hydraulic cylinder (25) are connected with hydraulic connecting head (26) respectively through oil pipe，The output shaft of the first hydraulic cylinder (24) and the second hydraulic cylinder (25) is fixing with the two ends of connecting plate (27) respectively to be connected，The middle part of connecting plate (27) is fixing with drive link (23) to be connected.
4. a kind of on-line production gas pipeline plugging holes system described in claim 1, it is characterized in that: described stopple plugging machine (4) is provided with inverted tubbiness expansion cylinder reservoir body (41) and vertically arranged tubulose closure transmission main shaft reservoir body (42), the lower end of closure transmission main shaft reservoir body (42) inner space that be connected and make both fixing with in the middle part of the diapire of expansion cylinder reservoir body (41), the sidewall of expansion cylinder reservoir body (41) is provided with the mounting flange (23) for connecting bypass pipeline, the sidewall of closure transmission main shaft reservoir body (22) is respectively equipped with diffusion valve (24) and string flat valve (25), the three-flange that during closure operation, stopple plugging machine (4) is arranged by shape expansion cylinder reservoir body (41) lower end is tightly connected with sandwich valve (2).
null5. a kind of on-line production gas pipeline plugging holes system described in claim 1，It is characterized in that: described close serrated knife (5) includes inverted barrel-like body (51)、Connect seat (52) and auger spindle (53)，The diapire of barrel-like body (51) offers the through hole for auger spindle (53) traverse along axis，Circumferentially arranged with at least five uniform group cutters tooth (54) on the perisporium lower end surface of barrel-like body (51)，And make often to organize cutter tooth (54) all includes the first cutter tooth (541) that edge width is incremented by successively by narrow to wide、Second cutter tooth (542)、3rd cutter tooth (543) and the 4th cutter tooth (544)，Connect seat (52) offer the installing hole for docking with perforate transmission main shaft along axis and on the hole wall of installing hole, offer keyway，Connecting seat (2) is fixed in the middle part of the bottom wall outer of barrel-like body (1) and makes both axis collinear，The lower end of auger spindle (53) is provided with drill bit.
6. a kind of on-line production gas pipeline plugging holes system described in claim 5, it is characterized in that: described first cutter tooth (541), the second cutter tooth (542), the 3rd cutter tooth (543) and the 4th cutter tooth (544) are all symmetrical set on the perisporium width of barrel-like body (51), and make the cutting edge of the first cutter tooth (541), the second cutter tooth (542), the 3rd cutter tooth (543) and the 4th cutter tooth (544) be arranged at the centre position of self.
7. a kind of on-line production gas pipeline plugging holes system described in claim 6, it is characterized in that: the edge width 2～5mm wider than the perisporium width of barrel-like body (1) of described 4th cutter tooth (544), and make the 3rd cutter tooth (543), the second cutter tooth (542) and the first cutter tooth (541) edge width respectively the 4th cutter tooth (544) edge width 3/4ths, 2/4ths, 1/4th.
8. a kind of on-line production gas pipeline plugging holes system described in claim 7, it is characterized in that: described cutter tooth (54) is provided with 6 groups, the perisporium of described barrel-like body (51) and diapire all offer through hole, through hole on described perisporium is provided with multi-turn along bus, every ring through hole is circumferentially all uniformly distributed and makes two adjacent rings through hole to stagger on generatrix direction setting, and the through hole on described diapire is uniformly distributed along the circumference of diapire.
9. a kind of on-line production gas pipeline plugging holes system described in any one of claim 1-8, it is characterized in that: described sandwich valve (2) all offers annular dovetail slot (28) in the upper and lower port periphery of manhole, and making the slot bottom width of dovetail groove (28) more than width of rebate, dovetail groove arranges Mi Quan in (28).
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| CN201610274535.7A CN105798354B (en) | 2016-04-27 | 2016-04-27 | A kind of on-line production gas pipeline plugging holes system |
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| CN201610274535.7A CN105798354B (en) | 2016-04-27 | 2016-04-27 | A kind of on-line production gas pipeline plugging holes system |
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| CN107061922A (en) * | 2017-04-19 | 2017-08-18 | 武汉理工大学 | One kind automation on-line production pipe plugging by-pass collar |
| CN107262762A (en) * | 2017-07-07 | 2017-10-20 | 上海煤气第二管线工程有限公司 | A kind of construction method of gas pipeline with angled aperture |
| CN107588280A (en) * | 2017-10-24 | 2018-01-16 | 上海煤气第管线工程有限公司 | Natural gas line expansive cylinder stopping transportation pressure method for blocking |
| CN110242821A (en) * | 2019-06-10 | 2019-09-17 | 上海煤气第二管线工程有限公司 | A kind of reinforcement for gas pipeline plugging construction |
| CN111633375A (en) * | 2020-06-05 | 2020-09-08 | 杭州临江环保热电有限公司 | Slurry supply pipe repairing device and repairing process thereof |
| CN114427631A (en) * | 2020-09-30 | 2022-05-03 | 中国石油化工股份有限公司 | Method for opening hole, leaking stoppage and replacing leakage valve of amine liquid medium pipeline under pressure |
| CN115709500A (en) * | 2023-01-09 | 2023-02-24 | 享成安全科技(南京)有限公司 | Fire-fighting pipeline under-pressure perforating device |
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| CN110242821B (en) * | 2019-06-10 | 2021-02-19 | 上海能源建设集团有限公司 | Reinforcing method for gas pipeline plugging construction |
| CN111633375A (en) * | 2020-06-05 | 2020-09-08 | 杭州临江环保热电有限公司 | Slurry supply pipe repairing device and repairing process thereof |
| CN114427631A (en) * | 2020-09-30 | 2022-05-03 | 中国石油化工股份有限公司 | Method for opening hole, leaking stoppage and replacing leakage valve of amine liquid medium pipeline under pressure |
| CN115709500A (en) * | 2023-01-09 | 2023-02-24 | 享成安全科技(南京)有限公司 | Fire-fighting pipeline under-pressure perforating device |
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