CN102518907A - Trenchless built-in sleeve pipeline repairing equipment and method - Google Patents
Trenchless built-in sleeve pipeline repairing equipment and method Download PDFInfo
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- CN102518907A CN102518907A CN2011104546995A CN201110454699A CN102518907A CN 102518907 A CN102518907 A CN 102518907A CN 2011104546995 A CN2011104546995 A CN 2011104546995A CN 201110454699 A CN201110454699 A CN 201110454699A CN 102518907 A CN102518907 A CN 102518907A
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Abstract
The invention discloses a trenchless built-in sleeve pipeline repairing method and equipment. The method includes utilizing two adjacent inspection shafts as operation space under the condition that the road surface is not excavated, adopting a pipeline to be repaired as a carrier, conveying short pipes into the pipeline to be repaired, dragging the short pipes to advance via a traction device, gradually completing hitting combination and connection between a latter short pipe and a former short pipe in an advancing process, realizing assembly of the short pipes in the pipeline to be repaired and finally forming a new pipeline; and then filling a gap between the new pipeline and the pipeline to be repaired in a grouting manner, leading the sleeved-in new pipeline to be stabilized and to be closely combined with the pipeline to be repaired to realize common pressure resistance strength, and accordingly realizing repair to the pipeline to be repaired. The equipment comprises a mechanical traction system and a hydraulic power system. The trenchless built-in sleeve pipeline repairing method and the equipment completely realize the trenchless technology, and have the advantages that continuousness is realized when the pipeline to be repaired crosses a road, construction time is short, engineering comprehensive manufacturing cost is low, influence to traffic is quite low, and the like.
Description
Technical field
The present invention relates to the built-in sleeved pipe recovery technique of a kind of non-excavation, refer in particular to a kind of method of the excavating earth surface built-in sleeved pipe prosthetic appliance of non-excavation and method of carrying out under ground piping reparation or renewal not fully.
Background technique
Drainage pipe renewal at present, reparation aspect adopt the more non-excavation bloated (expansion) that has to manage, ram the pipe method, wear construction procesies such as intubation, internal lining pipe method.Roughly be described below:
1, non-excavation expand tube (expander) technology:
Non-excavation expand tube (expander) technology; Be a kind of with hydraulic power unit; Through connecting, carry, pull back the fast-assembling bar, and with tractive cutting head, broken head isolate, expand expand old pipe in, the old section of jurisdiction of extruding in old pipeline surrounding soil; The new pipeline that is connected broken head back is dragged to desired location, realizes technology old pipeline replacement.
2, the interspersed method renovation technique of non-excavation:
So-called non-excavation intubation renovation technique is to be power with traction or incremental launching device, and a new pipeline is passed from old pipe interior; Place in the old pipeline; And slip casting is carried out in slit between the new and old pipeline filled, make new and old pipeline form integral body, and realize renovation technique old pipeline rehabilitation reinforcing.
3, non-excavation internal lining pipe renovation technique:
With the flexible pipe of heat of immersion thermosetting resin, insert in the old pipeline with hydrodynamic force upset or tractive mode, through methods such as heating or inflations, the flexible pipe of resin pickup is attached at old inner-walls of duct, be cured the renovation technique that forms the pipe lining pipe.
The basic practice of the interspersed method of non-excavation has three kinds:
First kind: be the HDPE tubing of waiting to repair bore with being equal to or greater than with memory characteristic; Be folded into U type shape, make its cross section, repair to insert fast down at tractive force and wait to repair in the pipeline less than pipeline section to be repaiied; Rely on the memory characteristic of tubing self or by air pressure and temperature; Make it resilience expansion fourth contact, and be attached to inner tube wall to be repaiied, form firm pipe-in-pipe with the interference state; Reach the effect that new and old pipeline is closely as one, with the construction process that improves old pipe function of use, increases the service life.
Second kind: be with less than tubing such as the HDPE that waits to repair pipe diameter, PVC, glass fibre reinforced plastics; Through traction, jacking or both stack mountings to waiting to repair in the pipeline; And to injection Cement Concrete slurries (according to certain mixing ratio) in space between the new and old pipeline; New and old pipeline is combined as a whole, to increase the construction process of old pipeline configuration intensity.
The third: radially even undergauge insertion.Select PE80 or PE100 and material modified, before the pipeline undergauge, connect, afterwards the PE pipeline is preheated to about 100 ℃ and carries out the drawing undergauge according to the Len req hot melt; In the permission time, need apply certain tractive force, prevent that the reducing pipe diameter from bigger resilience taking place before getting into pipeline to be repaired fully the undergauge PE pipe of drawing in.The process of pipeline undergauge should be continuous, should not interrupt.After reducing pipe was drawn in and finished, the pipeline quiescence time must not be less than 24h, made it fully return to original caliber; Can adopt the heating and pressurizing mode to quicken reducing pipe yet and restore, the time should not be less than 8h.With to wait to repair pipeline closely sturdy, new and old pipeline is combined as a whole, to increase the construction process of old pipeline configuration intensity.
More than three kinds of non-excavations intert methods and all need the local excavation road surface.When interting pipe construction, for satisfying the requirement of bending pipes radius working pit need be set, cause the damage of road pavement, it is intact to influence road, forms the influence to traffic, can not realize non-excavation fully; Secondly, when adopting the folding insertion method of U type, the tubing that is suitable for can not be blocked up, therefore, as insert seriously corroded wait to repair in the pipeline, be difficult to satisfy the pipeline configuration strength demand.
4, non-excavation short tube liner renovation technique: be about on one side short tube on-the-spot weld pull into old pipeline interior (short tube length with conform to the manual operation well pull into be advisable); At last gap slip casting between the new and old pipeline is filled up, realize the renovation technique that old pipeline rehabilitation is reinforced.Perhaps the section of jurisdiction is got in the pipe by inspection shaft, be assembled into bushing pipe then, at last at bushing pipe and female pipe grout injection.
Wherein, it is similar that non-excavation interts method renovation technique and built-in tyretube process, all adopts the mode of tractive or pushing tow newly to manage and directly insert old pipe, the pipe repairing method that the gap between the new and old pipeline is carried out filling.
In these construction procesies, non-excavation expand tube (expander) technology and non-excavation internal lining pipe renovation technique all need excavate operating pit, have under a lot of situation not satisfy the requirements; And, the poor rigidity of the internal lining pipe that inner lining process is accomplished, slump easily; In case slump will cause pipeline to stop up, non-excavation short tube liner renovation technique needs whole plastic tube is truncated into pipe nipple; Long 60～the 70cm of every short tube, the sweat soldering one by one in the down-hole (receive welding machine to insert institute and limit, suitable caliber is limited); The per pass weld bond needs 20～30 minutes, bothers comparatively speaking, accomplishes construction amount in the unit time and is limited to; The special short tube that is used for liner of producing of present domestic shortage influences the development of short tube lining technique.
Summary of the invention
The technical problem that the present invention will solve is: the present invention provides built-in sleeved pipe prosthetic appliance of a kind of non-excavation and method, repairs the purpose of damaging buried pipeline to realize excavated pavement not.
Technical solution of the present invention comprises: the built-in sleeved pipe restorative procedure of a kind of non-excavation, this method are under the situation of excavated pavement not, utilize adjacent two inspection shafts to be working space; With pipeline to be repaiied is carrier; Short tube is transported to waits to repair in the pipeline, utilize traction gear traction short tube to move ahead again, and a short tube closes with hitting of last short tube and is connected after in the process of advancing, accomplishing one by one; Waiting to repair the assembling that realizes short tube in the pipeline, form a new pipeline at last; Afterwards to new pipeline, wait to repair space between the pipeline and carry out slip casting and fill, the new pipeline that is inserted in is obtained firmly, and make and wait to repair pipeline and the old pipe common compressive strength of formation of combining closely, thereby the reparation of repairing pipeline is treated in realization.
The present invention also proposes the built-in sleeved pipe prosthetic appliance of a kind of non-excavation, is used between two adjacent inspection shafts, repairing damaged pipe, and said equipment comprises:
The mechanical traction system is located at an end inspection shaft, and this mechanical traction system can be between said two inspection shafts waits to repair in the pipeline and extend and tractive; And hydraulic power system, for this mechanical traction system provides hydraulic power, satisfy pipeline traction and interface and hit the power demand of closing;
Wherein, said mechanical traction system traction short tube under the hydraulic power support moves ahead and this short tube is hit to close with last short tube and is connected, thereby is waiting to repair the assembling that realizes short tube in the pipeline, and the most a plurality of short tubes are combined into a new pipeline.
The present invention is according to built-in sleeve pipe technological characteristics of construction, and in the modular design of carrying out " built-in sleeve pipe " equipment, being based on environmental protection and easy-to-operat is basic ideas.The present invention confirms to take the hydraulic power form, and hitching machinery is selected separate assembling, so that carrying, dismounting are advisable.It is traction that short tube connects with pulling required drive into, so that select suitable hydraulic power unit.
It is by the hydraulic power unit output kinetic energy that this technology realizes; Through opposing motion principle being set with drive chain connects; In the process that traction moves ahead, drive rearmounted pressure disk and move ahead, pressurize, accomplish healing up and being connected of short tube; Final new pipeline of assembling formation of in old pipeline, realizing short tube is accomplished the construction of built-in sleeve pipe.
After equipment installs; Conduction chain is passed from upright dress hollow type oil hydraulic cylinder center hole; The leading block guiding pipeline section the other end through device bottom, continue to pass through drawing head front end mesopore and with rearmounted pressure disk to link up with the reverse pulley that is connected, feed back to the drawing head inboard; Carry out hinge and be connected fixingly with the fixedly snap ring in being arranged on drawing head, accomplish the connection of the opposing active force of chain.Can under oil hydraulic cylinder to-and-fro motion effect, by joint short tube be installed and heal up and propelling construction after all installations.
The built-in sleeve pipe renovation technique of non-excavation of the present invention is a kind of new technology that solves pipeline rehabilitation.Especially to drainage pipe belong to geographical circumstance complication, when not possessing any excavation condition, under the situation that satisfies the technology applicable elements, the present invention is a kind of effective ways of implementing pipeline rehabilitation.The characteristics that this technology is the most outstanding are exactly to realize non-excavation fully, have the road of crossing constantly row, the engineering time is short, the engineering comprehensive cost is low, to advantages such as traffic impact are minimum, all working utilizes in two adjacent inspection shafts and can accomplish.
Description of drawings
Fig. 1 is the schematic representation of a specific embodiment of the built-in sleeved pipe prosthetic appliance of non-excavation of the present invention.
Fig. 2 is the application implementation schematic representation of the specific embodiment of built-in sleeved pipe restorative procedure of non-excavation of the present invention and equipment.
The structural representation of the traction fluid cylinder pressure that Fig. 3 is adopted for the present invention's one specific embodiment.
Fig. 4 to Fig. 4 C is the structural representation of the movable lock dog that adopted of a specific embodiment of the present invention.
The traction bearing that Fig. 5 is adopted for the present invention's one specific embodiment is applied to the schematic top plan view in the inspection shaft.
Fig. 5 A, Fig. 5 B are the plan view and the plan view of the traction bearing among Fig. 5.
The structural representation of the drawing head that Fig. 6 is adopted for the present invention's one specific embodiment.
Fig. 7 A, Fig. 7 B are the structural representation of the rearmounted pressure disk that adopted in the specific embodiment of the present invention.
The structural representation of the short tube that Fig. 8, Fig. 8 A are adopted for the present invention's one specific embodiment.
The structural representation of the short tube that Fig. 9, Fig. 9 A, Fig. 9 B, Fig. 9 C are adopted for another specific embodiment of the present invention and assembling action schematic representation.The main label declaration of accompanying drawing:
1, inspection shaft 2, wait to repair pipeline 3, generator
4, frame 6, traction fluid cylinder pressure are controlled in hydraulic power station 5, traction
7, link 8, guide type shoe 9, studdle
10, drawing head 11, conduction chain 12, rearmounted pressure disk
13, short tube 14, chain control snap close 61, hydraulic cylinder piston
62, hydraulic cylinder 63, oil hydraulic cylinder flange plate 64, oil hydraulic cylinder oil connection
81, coupling sleeve 82, dihedral stud 84, outer supporting leg
85, interior supporting leg 86, short pin shaft 87, the axle of having strong market potential
88, studdle 89, position limit cycle 101, lead chain case
102, starting taper tube 103, baffle ring 104, location cylinder
105, fixedly snap ring 141, chain lock dog 142, fixed tray
143, at a distance from baffle ring 144, locknut 145, bearing pin
146, side plate 147, nut 148, the side plate outside
810, leading block
Embodiment
Following conjunction with figs. and specific embodiment specific embodiments of the invention are done further to specify.
The present invention proposes the built-in sleeved pipe restorative procedure of a kind of non-excavation, and this method is under the situation of excavated pavement not, utilizes adjacent two inspection shafts to be working space; With pipeline to be repaiied is carrier; Short tube is transported to waits to repair in the pipeline, utilize traction gear traction short tube to move ahead again, and a short tube closes with hitting of last short tube and is connected after in the process of advancing, accomplishing one by one; The combination pipe that utilizes traction gear will hit after closing then is dragged to desired location; Waiting to repair the assembling that repeats short tube in the pipeline, finally forming a new pipeline, and new pipeline is being dragged to correct position; Afterwards to new pipeline, wait to repair space between the pipeline and carry out cement admixture and fill, the new pipeline that is inserted in is obtained firmly, and combine closely with pipeline to be repaiied and to form common compressive strength state, thereby the reparation of repairing pipeline is treated in realization.Match with aforementioned pipe repairing method; The present invention also proposes the built-in sleeved pipe prosthetic appliance of a kind of non-excavation; Only between two adjacent inspection shafts, repair damaged pipe; Said equipment comprises: mechanical traction system and hydraulic power system, mechanical traction system are located at an end inspection shaft, and this mechanical traction system can be between said adjacent two inspection shafts waits to repair to move in the pipeline and extend; This hydraulic power system provides hydraulic power for this mechanical traction system, satisfies pipeline traction and interface and hits the power demand of closing; Wherein, said mechanical traction system traction short tube under the hydraulic power support moves ahead and this short tube is hit to close with last short tube and is connected, thereby realizes the assembling of short tube in the pipeline and form a new pipeline waiting to repair.
The present invention be with the influence of municipal drainage pipeline internal environment, conduit slope and short tube traction with hit make a concerted effort adaptive etc. as the main thought that designs.In the design of hydraulic power system and mechanical traction system; Considered construction pipeline section suitable length and in the old pipeline new pipe hit close, connect, whole manufacturing processs such as traction; Also can further consider simultaneously along with the continuous prolongation of newly being inserted in duct length; The ever-increasing characteristics of self weight of pipeline are confirmed the size of required traction according to the object of which movement principle, and confirm with hydraulic power system, mechanical traction system, pipeline assembly system to be fundamental composition.
For accurately, be well understood to technological scheme of the present invention, below in conjunction with a specific embodiment of this pipeline rehabilitation equipment pipe repairing method and pipeline rehabilitation equipment are elaborated:
Shown in Fig. 1 to Fig. 9 C, pipeline rehabilitation equipment of the present invention is to come that through two adjacent inspection shafts therebetween pipeline to be repaiied is carried out non-excavation type to repair.Particularly; This pipeline rehabilitation equipment comprises the power system and the trailer system of an inspection shaft located therein (as a equipment work well) side; And short tube is transferred to the tail end of waiting to repair pipeline one by one through another inspection shaft (as the active well that heals up); This trailer system is used for that traction drags short tube in this waits to repair the scope of pipeline, drags so that this short tube and last short tube are hit to close to be connected and to draw, and this power system is mainly used in to this trailer system power is provided.This trailer system can be used for also that simultaneously each short tube is hit the new pipe section that closes back formation and drags to suitable position.
As shown in Figure 1; It is the structural representation of a specific embodiment of the present invention; It adopts hydraulic power system and mechanical traction system; Hydraulic power system comprises generator 3, hydraulic power station 4 and traction fluid cylinder pressure 6, and traction fluid cylinder pressure 6 satisfies pipeline traction and interface and hits the power demand of closing to mechanical traction system outputting power.
Further, the hollow type oil hydraulic cylinder that the traction fluid cylinder pressure is put for upright installing, as shown in Figure 3, it mainly comprises hydraulic cylinder piston 61 and hydraulic cylinder 62, and this hydraulic cylinder piston 61 is hollow shape, and its hollow part is used for conduction chain and wears up and down wherein; Hydraulic cylinder 62 is sheathed on outside the hydraulic cylinder piston 61, which is provided with oil hydraulic cylinder oil connection 64, and its upper end is provided with oil hydraulic cylinder flange plate 63.In an application implementation example of the present invention, according to the demand of traction and traction form, confirm that the hydraulic workstation working pressure is 16MPa, rated flow is 8.5L/min; Confirm that the oil hydraulic cylinder form is the hollow type oil hydraulic cylinder, to trailer system and pipeline assembly system outputting power.Traction fluid cylinder pressure selection traction is 10 tons a oil hydraulic cylinder, hits the power demand of closing to satisfy pipeline traction and interface.
The mechanical traction system mainly is under the hydraulic power support; The form completion short tube of employing guide type shoe and the hinged traction of conduction chain hits to close with pipeline and drags; In the specific embodiment of the present invention, its mechanical traction system comprises that mainly traction controls frame 5, guide type shoe 8, drawing head 10, conduction chain 11 and rearmounted pressure disk 12.Wherein:
Traction is controlled frame 5 and is arranged at traction fluid cylinder pressure 6 tops, in order to control and the tractive operation of accomplishing conduction chain 11; This traction is controlled frame 5 and is comprised fixed support and hinge joint traction fastener, and support bracket fastened supporting foot is fixedly arranged on the traction fluid cylinder pressure 6 cylinder body overcoats 62 top flange dishes 63, and its hinged traction fastener is used to control the degree of tightness of conduction chain 11.Preferably, this traction is controlled frame 5 and is provided with and controls wheel, and the folding and unfolding control in order to realizing easily conduction chain specifically please refer to Fig. 1, shown in Figure 2.
Shown in Fig. 5, Fig. 5 A, Fig. 5 B, guide type shoe 8 mainly comprises coupling sleeve 81, the stressed pin of preposition support, leading block 810 and guiding trestle 83, is used to accomplish the guiding and the transmitting tractive power of conduction chain 11.This coupling sleeve 81 is provided with the standpipe of flange plate for two ends; It is through upper flange dish and the 6 coaxial settings of traction fluid cylinder pressure; Conduction chain 11 can be from wherein wearing and mistake, and the lower flange dish of this coupling sleeve 81 is welded on the guiding trestle 83, and utilize dihedral stud 82 to strengthen in the outside.Leading block 810 is located on this guiding trestle 83; Be used for transferring conduction chain 11 to substantially horizontal by Vertical direction; Guide type shoe 8 is preferable to be provided with two stressed pin of preposition support; And the stressed pin distal portion of this support is the bigger butt plate of area, so that make its both sides to be resisted against fully on the borehole wall of operation well simultaneously.As shown in the figure, the outside of this guide type shoe 8 is provided with studdle 9, so that can regulate is fixedly supported to guide type shoe 8 upper-lower position in shaft bottom.
In order to improve the adaptability of this guide type shoe; Preferable employing angle of the stressed pin of this preposition support and/or adjustable in length structure, in one embodiment, the stressed pin of this preposition support is that horizontally pivoting ground is fixed in coupling sleeve 8 bottoms; And; The stressed pin of each preposition support is to be formed by interior supporting leg 85 and outer supporting leg 84 two-part suits, and interior supporting leg 85 is provided with positioning hole with outer supporting leg 84, so that after being adjusted to appropriate length, fix with the grafting of pinning.
As shown in Figure 2, in the specific embodiment of the present invention, this coupling sleeve 81 is to be connected with the lower end of traction fluid cylinder pressure 6 through a plurality of links 7, so that adjust the installation height through the combination of link 7, this link 7 can be selected the standpipe shape of ease of assembly.
Drawing head 10 is the tapered couplings that adopt the hollow that steel plate is welded into; Be used to lead and assemble pipeline and move ahead; It comprises the taper fixing part of front end and the joint of rear end, and this fixing part has the front end mesopore, is used for conduction chain 11 and is worn to the reverse pulley (not shown) that hang on rearmounted pressure disk 12 by it; And be provided with fixedly snap ring in the drawing head, be used for fixing the tail end after conduction chain 11 is turned back; Joint is a tubular, forms stair-stepping limited part between itself and fixing part, is used for combining with the first segment short tube.As shown in Figure 6; In the specific embodiment of the present invention; This drawing head comprises leads chain case 101, starting taper tube 102, baffle ring 103, location cylinder 104 and fixing snap ring 105; This leads the top and bottom ends that chain case 101, baffle ring 103 are welded in starting taper tube 102 respectively, and these baffle ring 103 covers are fixed in the front end periphery of this location cylinder 104, and fixedly snap ring 105 departs from the middle position of leading chain case 101 and is welded in its periphery.
Rearmounted pressure disk 12 is arranged at the tail end that is hit the short tube that closes; Cooperate short tube enforcement alignment and balance thrust with conduction chain; The power of power station output acts on the rearmounted pressure disk 12 through leading block, makes pressure disk obtain horizontal power, accomplishes healing up, locating of short tube.Shown in Fig. 7 A, Fig. 7 B; It is the structural representation of the rearmounted pressure disk that adopted in the specific embodiment of the present invention; It comprises the tubular positioning ring 124 of front end and the flapper disk 125 of rear end; Flapper disk 125 is located at the bottom periphery of positioning ring 124, to form stair-stepping limited part, is convenient to the sheathed periphery that is fixed in positioning ring 124 of tail end with the short tube of waiting to heal up.As shown in the figure, an axially extended inner reinforced plate 122 is welded in the inboard of positioning ring 124, and its tail end extends to outside the flapper disk 125; The two ends of this inner reinforced plate 122 all have fixed hole; Thus, axially form retaining ring 121, so that reverse pulley (not shown) can be connected with winning fixing at the front end edge of rearmounted pressure disk 12; For example can this reverse pulley be connected with hook, hook can hang on the retaining ring 121 of rearmounted pressure disk 12 front ends; The fixed hole of its rear side forms the fixed structure of pressure disk; Be used for and postposition pressure disk 12 be fixed in the borehole wall movably; Can be fixed in the borehole wall after the for example available Fixed latches (not shown) of this fixed structure is inserted in this fixed hole, it can not be moved axially to limit rearmounted pressure disk 12.Short tube to be installed transfer and with last short tube 13 contrapositions after, the reverse pulley that will have a conduction chain 11 passes the front end that hang on rearmounted pressure disk behind this short tube to be installed; Hit after merging will hit the new pipe section that closes formation and drag to the precalculated position in completion, can this reverse pulley won from rearmounted pressure disk 12, so that decontrol rearmounted pressure disk 12, in order to the installation of next short tube to be installed.
The chain of conduction chain 11 for adopting special rolling-mill section (for example manganese steel) and processing through Overheating Treatment, its ability of bearing is preferably the maximum drawbar pull more than or equal to hydraulic power system; In the present embodiment; Conduction chain 11 passes the center hole of upright dress hollow type traction fluid cylinder pressure 6 earlier; And the leading block 810 through guide type shoe 8 bottoms, is turned back to drawing head 10 inboards behind front end mesopore that continues to pass through drawing head 10 and reverse pulley to waiting to repair the guiding of the pipeline the other end; Be arranged on drawing head 10 in fixedly snap rings 105 carry out hinge is connected fixing, the connection of the completion conduction chain 11 opposing modes of action.
In the application implementation example of the present invention; Stressed and the counterweight requirement according to hydraulic haulage; The pipeline weight that drags of non-excavation bushing installation is set in: (weight is 2525kg～5049kg) in 50～100 meters scopes of pipe range; Traction is confirmed: in the sleeve pipe work progress, under the traction of hydraulic equipment, in former pipeline, do uniform motion in a straight line with the PE pipe.According to object horizontal rectilinear motion principle at the uniform velocity, utilize the condition of pulling force and frictional force two equilibrium of forces, confirm the maximum drawbar pull of hydraulic equipment.The process implementing scope is set to the drainage pipe of DN200 to DN1000, and the maximum spacing of general inspection well on the straight line pipeline section is 70 meters, and the maximum caliber that built-in cover pipe construction satisfies is DN710, and every meter weight is 75.11kg.About 5.26 tons of one section construction length gross weight.Consider the unpredictable element that possibly occur, traction that mechanical each several part bears is 10 tons.
According to the stressed kind and the force request of mechanics principle and each parts, all parts are preferably and adopt 45# steel and steel plate to design, process.Each transmission part surface and drive chain all pass through quenching heat treatment technology, and hardness can reach Rockwell Hkc46-51, to satisfy the demand of traction.
Preferably, conduction chain 11 is provided with the chain control gear, hits and closes direction and can reversing motion conduction chain 11 is controlled at short tube, guarantees to hit the reliability of closing action.This chain control gear is a kind of chain control snap close 14; It comprises two chain lock dogs 141 that are symmetrically set in traction fluid cylinder pressure 6 tops; The outer end of each movable lock dog can be fixed through pivot 142 pivotally; Its inside top and bottom are respectively equipped with groove, with two movable lock dogs 141 of box lunch when closing up at top and bottom formation chain containing groove, conduction chain 11 can move up, and it moves down then and is limited.Particularly; See also shown in Fig. 4 to Fig. 4 C, chain control snap close 14 comprises chain lock dog 141, fixed tray 142, separated baffle ring 143, locknut 144, bearing pin 145, side plate 146 and little hexagon nut 147, wherein; This chain lock dog 141 is with after side plate 146 usefulness bearing pins 145 and little hexagon nut 147 connect; Side plate 146 again with fixed tray 142 spot welding, chain lock dog 141 can be rotated on side plate 146 and bearing pin 145 flexibly, reinforce welding at last; Two blocks of 146 of side plates need the welding outside 148 to get final product 146 preferable gaps with 0.05-0.1mm of chain lock dog 141 and side plate.
Shown in Fig. 4 C, because chain piece 141 is fixed on the oil hydraulic cylinder, when moving on the oil hydraulic cylinder, chain piece 141 auto lock conduction chains 11 move up, and make rearmounted pressure disk 12 obtain the power of substantially horizontal; When oil hydraulic cylinder moves down, drive chain piece 141 and move rotation, thereby unclamp locking automatically conduction chain 11.Particularly, on conduction chain 11, move (or chain lock dog 141 moves down) and arrived certain position, after 141 rotations of chain lock dog surpassed peak (present embodiment is R48.15) size, the deadweight of chain lock dog 141 can make it on bearing pin 145, be rotated down the conduction chain position.When chain lock dog 141 pins conduction chain 11, under the effect of traction fluid cylinder pressure 6 piston rods 61, make conduction chain 11 move on to specified position on the load weight.When traction fluid cylinder pressure and chain lock dog 141 together move down; (this moment, conduction chain 11 was controlled the hinged traction fastener control on the frame by traction to chain lock dog 141 to the kayser of conduction chain 11 before bearing pin 145 unclamps toward opposite spin automatically; It can not be moved down), thus make oil hydraulic cylinder and traction fluid cylinder pressure and chain lock dog 141 can together move down into specified position as required; Repeat above-mentioned action, can accomplish the lifting of load weight.
In conjunction with foregoing description; Those skilled in the art should can accurately understand equipment of the present invention and method; Further specify the structure of the short tube that is adopted in the specific embodiment of the present invention below; The two ends of this short tube have down the son of tenon structure, female mouthful of joint respectively, close the back and form the snap close sealing state so that hit at adjacent two short tubes, describe in detail below:
As shown in Figure 8; The short tube of present embodiment is to adopt a kind of short tube with mother-son mouth connecting port of falling the tenon; The front end 131 of this short tube is provided with rim of the mouth joint 133; The rear end 132 of short tube is provided with female mouthful of joint 134, and rim of the mouth joint 133 through front end and/or female mouthful of joint 134 of rear end connect with corresponding female mouthful of joint 134 or rim of the mouth joint 133 in abutting connection with the short tube snap close that matches respectively, form the buckle structure of falling the tenon.
This rim of the mouth joint includes the mutual block of interference of outer end and the fastening section of inner recessed relatively setting with mother's mouthful joint; And form the non-return structure of cascade between mutual block of interference separately and the fastening section; The height at this ladder position is preferably 3～5mm, is convenient to the buckle structure of falling the tenon that assembles and seal thereby form.
In one embodiment of the invention; Please combine shown in Fig. 8 A; This rim of the mouth joint 133 comprises groove position 135 and the indent position 137 that the set slope shape of tube wall periphery is outstanding; This mother's mouth joint 134 comprises groove position 136 and the protrusion position 138 that the slope shape of Zhou Suoshe in the tube wall is recessed; Match with the groove position 136 of female mouthful of joint 134 and form the mutual block of interference of the buckle structure of falling the tenon in the groove position 135 of rim of the mouth joint 133, the indent position 137 of rim of the mouth joint 133 cooperatively interacts with the protrusion position 138 of female mouthful of joint 134 and engages the fastening section that forms the buckle structure of falling the tenon.
Further; See also shown in Fig. 8 A; In the present embodiment, the indent position of rim of the mouth joint 133 137 axially is the ring-type buckling groove of flat for the bottom, and the protrusion position of female mouthful of joint 134 138 axially is being the ring-type buckling part of flat for inwall; So, realize hitting the fastening section that the mutual block peace of interference of closing back formation ramp type contact (conical surface) is directly touched (tubular) at two adjacent joint short tubes.Preferably, the thickness at the thickness at this ring-type buckling groove place and ring-type buckling part place is preferably and respectively is 1/2 of complete pipe thickness.
In the another embodiment of the present invention; Shown in Fig. 9 to Fig. 9 C; Wherein, Fig. 9 A is the local enlarged diagram of the rim of the mouth joint at I place among Fig. 9, and Fig. 9 B is the local enlarged diagram of the female mouthful of joint at II place among Fig. 9, Fig. 9 C be present embodiment short tube hit the action schematic representation that closes the procedural interface place.This rim of the mouth joint 133 comprises groove position 135 and the indent position 137 that the set slope shape of tube wall periphery is outstanding; This mother's mouth joint 134 comprises being the recessed groove position 136 of slope and protruding position 138 of the interior Zhou Suoshe of tube wall; Match with the groove position 136 of female mouthful of joint 134 and form the mutual block of interference (glissile segment) of the buckle structure of falling the tenon in the groove position 135 of rim of the mouth joint 133, the indent position 137 of rim of the mouth joint 133 cooperatively interacts with the protrusion position 138 of female mouthful of joint 134 and engages the fastening section that forms the buckle structure of falling the tenon.These agent structures and last embodiment are similar.
Different with the short tube among Fig. 8, Fig. 8 A is; In the present embodiment; The rim of the mouth joint of short tube all is double slanted planar (being the conical surface) structure with female mouthful of joint; The indent position 137 of rim of the mouth joint 133 axially is the taper buckling groove of slope shape for the bottom, and the protrusion position of the correspondence of female mouthful of joint 134 138 axially is being the taper buckling part of slope shape for inwall, and is like this; Realize hitting at adjacent two joint short tubes and close the back and form the mutual block of interference that junction plane all is the conical surface contact and fasten section, make that so to hit the process of closing more convenient, laborsaving.
The mutual block of the interference of short tube is generally 5 °～20 °, 7 °～15 ° of preferable employings with the cone angle of the conical surface (slope shape) that fastens the formation of section junction plane.In embodiment illustrated in fig. 8, the cone angle of the mutual block of its interference is 14 °; Among the embodiment shown in Figure 9, the mutual block of interference is 9 ° with the cone angle that fastens section.
Mother-son mouth dense block buckle structure is used to overcome the inconvenience that short tube lining processing in the past needs side weld edge fit at the scene to pull into; The mother-son mouth sealing snap close form that the present invention proposes is to heal up with bump through the method for the snap close of falling the tenon to realize that the PE short tube connects; Can prevent effectively that the mouth of pipe from coming off, make things convenient for the connection between the pipe nipple pipe again.
Because connecting with the more piece short tube, non-excavation sleeve pipe renovation technique realizes pipeline rehabilitation; Therefore, short tube sealing joint antiseepage design is very important, in the present embodiment; The short tube interface is except that adopting the above-described snap close of falling the tenon; Also increased sealing configuration: the indent position 137 of joint 133 is provided with the groove 139 of putting seal ring 130 in the rim of the mouth of short tube, is used for fixing seal ring 130, the extruding of healing up of warp and a female mouthful of joint 134; Seal ring 130 can with the tight sturdy and turgor groove of the inwall of female mouthful of joint 134, reach the hermetic seal effect.Preferably, the bottom corners place rounding (R1) of groove 139, further, the interior outer rim of joint end, rim of the mouth is also carried out rounding and is handled the convenience when assembling to improve.
Present embodiment is that sealing joint antiseepage design is used in combination with the snap close of falling the tenon, after short tube hits and closes connection, can not throw off voluntarily, can satisfy the leakage proof designing requirement again, has exempted welding procedure simultaneously.
Because non-excavation sleeve pipe technology is to hit incompatible completion pipeline rehabilitation with pipeline traction and interface, employed tubing no matter aspect intensity still toughness aspect, all must satisfy cutting and hit the demand of closing.When the present invention implements pipe workpiece quality and specification there is high requirements; Tubing should possess independent stressed intensity; Good toughness is arranged again; Also must have stronger shock resistance and cutting performance simultaneously, it is sleeve pipe tubing that the present invention selects high density polyethylene (HDPE) PE plastic water pipe, makes that the short tube advantage of utilizing this kind tubing to process is remarkable: tension and excellent in cushion effect, good toughness; Corrosion-resistant, long service life; Less scaling, biocidal property is strong, nontoxic, compliance with environmental protection requirements, and can satisfy cutting and technological requirement etc.
The qualification of consideration operating space and easy to operate; According to drainage pipe delivery receiving acceptance standard; The short tube of present embodiment adopts the HDPE hdpe pipe, thereby utilizes its good rigidity and plasticity to set up short tube processing and interface structure, fully to satisfy construction requirement.
Tubing processing is chosen in factory usually and accomplishes: the cutting back (confirming length to satisfy in inspection shaft operability) that earlier the tubing raw material is cut into 700-1000mm by field condition and user demand; Use lathe on request the mouth of pipe to be cut into the mother's of falling tenon mouth structure of putting o-ring groove, concrete structure can be referring to table one.
The mother's of falling tenon mouth structure of table one short tube
For guaranteeing the antiseepage sealability of seal ring, be to select water-swellable caulking gum material or silica gel to be made in the specific embodiment of the present invention, its material each item index is shown in table two and table three.Two kinds of materials all have excellent sealing performance, good springiness, anticorrosive, characteristics such as anti-aging, long service life.
Be processed into ring-like circle (its diameter of section for example selects to press 1/5 value of thickness of pipe wall), expansion coefficient increased after the water-swellable caulking gum was met water, can satisfy seal request; Silica gel sealing ring fills in groove with its better elastic, reaches sealing effect.
In sum, but adopt short tube can solve the operational issue in inspection shaft; With Interface design is that the mother-son mouth dense block of falling tenon buckle structure can solve firm, the non-leakage problem of connection; Adopt hydraulic haulage and interface to hit and close, can satisfy power evenly, heal up closely, drag demand in place.
In the embodiments of the invention, the installation of this equipment is that the hydraulic system of equipment, each assembly of trailer system are assembled by the order of connection and got final product, and specifically comprises:
(1) the up-down link 7 of hollow type traction fluid cylinder pressure 6 and equipment (some joints, 1 meter at every joint are with interior many Dimensionss, hollow tubular, and two ends band mounting flange connects according to Len req) and the coupling sleeve of guide type shoe 8 are connected with flange-type; From its hollow bore, pass conduction chain 11 subsequent use simultaneously;
(2) the traction fluid cylinder pressure 6 after will assembling, up-down link 7 and traction are controlled frame 8 liftings and are stood in the operation well (a wherein inspection shaft), and traction are installed in the top control frame 5 (firm with nut); In its lower end the flexible stressed pin of the reassembling type of guide type shoe 8 is carried out the pin formula and install, and whole adjustment is upright steady;
(3) short tube that conduction chain 11 is pulled to the other end active well that heals up, chain passes from drawing head 10 front end mesopores, and walks around the reverse pulley of hook-hang type of rearmounted pressure disk 12, turns back and to drawing head 10, fixes with bayonet lock.
(4) the hydraulic pressure transport pipe between installation hydraulic workstation 4 and the traction fluid cylinder pressure 6 is installed and is connected power station.
So promptly accomplished the installation of equipment, concrete working procedure afterwards is following:
(1) clean the short tube of completion of processing, and seal ring is installed, wherein, each short tube two ends is preferably the son with tenon structure, female mouthful of joint, closes back formation snap close sealing state thereby can hit at adjacent two short tubes;
(2) first segment short tube (for example its front end can be flat mouth, the rear end is female mouthful) is transported in the active well that heals up; The reverse pulley hook that will have conduction chain 11, hang on the rearmounted pressure disk 12 is taken; Pass to the back-end from first segment short tube front end, with the short tube front end sleeve on the joint of drawing head 10 tail ends.Then, use the method for passing, conduction chain 11 is passed the second joint short tube (for example the rim of the mouth is preceding, and female mouthful in the back), prepare built-in sleeve pipe operation with the first segment short tube;
(3) rim of the mouth of the second joint short tube front end and the tail end of first segment short tube are aligned for female mouthful; The reverse pulley hook that will have conduction chain 11 hangs on the rearmounted pressure disk 12; After the rearmounted pressure disk 12 and the second joint short tube tail end end face are coincide; Start hydraulic power unit and constantly pressurize, affect in the process at conduction chain 11 and heal up, and traction moves ahead through opposing active force completion short tube.Behind the in-position, pressure release pine chain.The down the 3rd, the 4th ... pipe joint, repeat the second joint short tube installation process, back and forth operation is between with two operation well sections till the full short tube of cover.
Can know by foregoing, the present invention have easy accessibility, easy and simple to handle, power steadily, noise free, free of contamination advantage.
Though the present invention discloses with specific embodiment; But it is not in order to limit the present invention; Any those skilled in the art; The displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present invention and scope, having done, or, all should still belong to the category that this patent is contained according to equivalent variations and modification that scope of patent protection of the present invention is done.
Claims (16)
1. the built-in sleeved pipe restorative procedure of non-excavation is characterized in that, this method is to utilize adjacent two inspection shafts to be working space; With pipeline to be repaiied is carrier; Short tube is transported to waits to repair in the pipeline, utilize traction gear traction short tube to move ahead again, and a short tube closes with hitting of last short tube and is connected after in traveling process, accomplishing one by one; Waiting to repair the assembling that realizes short tube in the pipeline, form a new pipeline at last; Afterwards to new pipeline, wait to repair space between the pipeline and carry out slip casting and fill, the new pipeline that is inserted in is obtained firmly, and combine closely with pipeline to be repaiied and to form common compressive strength, thereby the reparation of repairing pipeline is treated in realization.
2. the built-in sleeved pipe restorative procedure of non-excavation as claimed in claim 1; It is characterized in that; Said traction gear comprises conduction chain, and this worker's method is under the effect of hydraulic pressure reciprocating power, utilizes this conduction chain traction short tube to move ahead; And in this process, utilize opposing motion principle to realize that snap close is connected and seal, thereby a plurality of short tubes are connected to form new pipeline with will female mouthful of end of back one short tube rim of the mouth end and last short tube hitting to close.
3. the built-in sleeved pipe restorative procedure of non-excavation as claimed in claim 1 is characterized in that, the two ends of said short tube have down the son of tenon structure, female mouthful of joint respectively, and adjacent two short tubes hit and close back formation snap close sealing state.
4. the built-in sleeved pipe restorative procedure of non-excavation as claimed in claim 1 is characterized in that, the bottom of said traction gear can be regulated height and front and back position and it is fixed at the bottom of the said inspection shaft.
5. the built-in sleeved pipe restorative procedure of non-excavation as claimed in claim 2; It is characterized in that; Said conduction chain is provided with unidirectional control device; In hitting the process of closing, drawing, this unidirectional control device can cooperate the motion of hydraulic cylinder piston that conduction chain is imposed stretch-draw and loose action, makes when conduction chain moves up along with hydraulic cylinder piston in this process this unidirectional control device to fix to tighten conduction chain to implement traction; And when hydraulic cylinder piston moves down, then automatically terminate restriction to conduction chain.
6. built-in sleeved pipe prosthetic appliance of non-excavation; Be used between two adjacent inspection shafts, repairing damaged pipe, wherein an inspection shaft is as the equipment work well, and another inspection shaft is as healing up active well; It is characterized in that; Said equipment comprises mechanical traction system and hydraulic power system, and said mechanical traction system is located at the equipment work well, and this mechanical traction system can repair in the pipeline said equipment work well and the treating between the active well of healing up and extends and tractive; Said hydraulic power system provides hydraulic power for this mechanical traction system, satisfies pipeline traction and interface and hits the power demand of closing; Wherein, Said mechanical traction system traction short tube under the hydraulic power support moves ahead; And in the process of advancing, one by one back one short tube is hit to close with last short tube and is connected, thereby in the assembling of waiting to repair realization short tube in the pipeline, the most a plurality of short tubes are combined into a new pipeline.
7. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 6; It is characterized in that; Said hydraulic power system comprises hydraulic power station and traction fluid cylinder pressure, and it satisfies pipeline traction and interface and hit the power demand of closing to mechanical traction system and pipeline assembly system outputting power.
8. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 7; It is characterized in that; Said mechanical traction system comprises that traction controls frame, guide type shoe, drawing head, conduction chain and be used for the rearmounted pressure disk that short tube heals up; Under the hydraulic power support, the form of employing guide type shoe and the hinged traction of chain completion pipeline hits and closes and drag; Wherein:
The ability that bears of said conduction chain is more than or equal to the maximum drawbar pull of hydraulic power system, and the traction fluid cylinder pressure is the upright hollow type oil hydraulic cylinder that is loaded on the second inspection shaft place, and said conduction chain is from wherein wearing and mistake;
Said traction is controlled and is placed on said traction fluid cylinder pressure top, in order to control and the tractive operation of accomplishing conduction chain;
Said guide type shoe is used to accomplish conduction chain guiding and tractive force transmission;
Said drawing head is the tapered coupling that adopts steel plate to be welded into, and is used to lead with adapter sleeve move ahead, and the front end of this drawing head has mesopore, is provided with the fixedly snap ring that is used for fixing conduction chain one end in the drawing head;
Said rearmounted pressure disk is arranged to be hit closes the tail end that connects short tube; Be used for cooperating short tube enforcement location and balance thrust with said traction fluid cylinder pressure; Its front side is provided with in order to connect the retaining ring of reverse pulley hook, and its rear side is provided with the fixed structure that can be fixed in the borehole wall.
9. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 8; It is characterized in that said conduction chain passes said upright dress hollow type oil hydraulic cylinder center hole, and repair the pipeline the other end through the leading block direct of device bottom; Continue to pass through the mesopore of drawing head front end and the reverse pulley that rearmounted pressure disk is hung; Feed back to the drawing head inboard again, and carry out hinge and be connected fixingly, form the opposing action type of conduction chain and connect with fixedly snap ring in being arranged on drawing head.
10. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 9; It is characterized in that; Said conduction chain is provided with chain control snap close, and said chain control snap close comprises two movable lock dogs that are symmetrically set in said traction fluid cylinder pressure top, and the outer end of said movable lock dog can be fixed pivotally; Its inside top and bottom are respectively equipped with the chain containing groove, said conduction chain can be relatively this chain control snap close move up to move down then relatively and be limited.
11. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 6 is characterized in that, the two ends of said short tube have down the son of tenon structure, female mouthful of joint respectively, and adjacent two short tubes hit and close back formation snap close sealing state.
12. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 11; It is characterized in that; The front end of said short tube is provided with the rim of the mouth joint; The rear end is provided with female mouthful of joint, through the rim of the mouth joint of front end or female mouthful of joint of rear end, connects with female mouthful of joint of corresponding adjacent short tube or the rim of the mouth joint snap close that matches respectively; Its Connecting format is the buckle structure of falling the tenon; This rim of the mouth joint comprises the planar outstanding groove position in indent position and slope of tube wall periphery, and this mother's mouth joint comprises the protrusion position and the recessed groove position of slope shape in week in the tube wall, matches with the groove position of said female mouthful of joint and form the mutual block of coniform interference of the buckle structure of falling the tenon in the groove position of said rim of the mouth joint; The indent position of said rim of the mouth joint cooperatively interacts with the protrusion position of said female mouthful of joint and engage the fastening section of the formation buckle structure of falling the tenon, and the junction plane of said fastening section is the coniform of straight tubular or ramp type.
13. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 8 is characterized in that, said guide type shoe comprises coupling sleeve, the stressed pin of preposition support, leading block and guiding trestle; This coupling sleeve is the standpipe that two ends are provided with flange plate, and it is through upper flange dish and the coaxial setting of traction fluid cylinder pressure, and conduction chain is from wherein wearing and mistake, and the lower flange dish of this coupling sleeve is connected with the flange plate that is welded in guiding trestle top; Leading block is located at this guiding trestle bottom, is used for transferring conduction chain to substantially horizontal by Vertical direction.
14. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 13 is characterized in that, said guide type shoe is provided with two stressed pin of preposition support; The stressed pin distal portion of this preposition support is the bigger butt plate of area, so that make its both sides to be resisted against fully on the borehole wall of operation well simultaneously; The stressed pin of this preposition support adopts angle and/or adjustable in length structure; The stressed pin of this preposition support can be fixed in the coupling sleeve bottom with horizontally rotating; And the stressed pin of each preposition support is to be formed by interior supporting leg and outer supporting leg two-part suit; And interior supporting leg is provided with positioning hole with outer supporting leg, so that it is fixing after being adjusted to appropriate length, to peg graft with pin.
15. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 14 is characterized in that the outside of this guide type shoe is provided with studdle, makes guide type shoe can be fixedly supported to up-down adjustment the shaft bottom.
16. the built-in sleeved pipe prosthetic appliance of non-excavation as claimed in claim 13 is characterized in that, this coupling sleeve is that the link through a plurality of standpipe shapes is connected with the lower end of traction fluid cylinder pressure, so that adjust the installation height through the combination of link.
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| CN201110454699.5A CN102518907B (en) | 2011-12-30 | 2011-12-30 | Trenchless built-in sleeve pipeline repairing equipment and method |
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| CN201110454699.5A CN102518907B (en) | 2011-12-30 | 2011-12-30 | Trenchless built-in sleeve pipeline repairing equipment and method |
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| CN102518907A true CN102518907A (en) | 2012-06-27 |
| CN102518907B CN102518907B (en) | 2014-11-26 |
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