CN1058933C - Apparatus and method for down hole fusing - Google Patents
Apparatus and method for down hole fusing Download PDFInfo
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- CN1058933C CN1058933C CN94195221A CN94195221A CN1058933C CN 1058933 C CN1058933 C CN 1058933C CN 94195221 A CN94195221 A CN 94195221A CN 94195221 A CN94195221 A CN 94195221A CN 1058933 C CN1058933 C CN 1058933C
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Abstract
The present invention relates to an apparatus and a method for connecting a user wire to a polyolefin delivery pipe. The apparatus comprises a base, a heating element, a standpipe holder and rods, wherein the base is horizontally arranged on an underground polyolefin pipe and has rods extending to the ground, and the heating element is hinged with the base; the standpipe holder is used for clamping a standpipe so that the standpipe is fused to the polyolefin pipe, and the rods are used for lifting and lowering the heating element on the ground. The method comprises the following steps: determining the position of a user wire, excavating a dent hole whose diameter is less than two feet from the ground to the polyolefin pipe at the position of the user wire, introducing a fusing apparatus to the top of a main pipe, fusing the standpipe to the polyethylene pipe and drilling a hole on the polyethylene pipe through the fused standpipe.
Description
The present invention relates to connect the equipment and the method for public utilities pipeline in the shaft bottom fusion, more specifically say, this equipment is to be used to be connected utility line such as polyethylene water pipe or sewage pipe with method, both can be used for new buried pipeline, also can be used for displacement, be also included within the lead-in of fusion connection polyolefin pipe user on the new pipe existing pipeline.
In public industry, adopt polyolefin pipe very general, current employing be polyethylene pipe, at present two kinds of methods are mainly adopted in the maintenance of existing pipeline (posting the sewage pipe of polyethylene pipe such as the pipe of concrete that breaks or lining), one of them is to be referred to as to slide the method for bushing pipe, promptly a polyethylene pipe tractive than minor diameter is passed original pipeline, another kind method is that former pipeline is smashed, meanwhile introduce a polyethylene pipe, a kind of method in back is because in position with the broken former pipe of polyethylene pipe displacement, so that the internal diameter of pipe can also be kept intact is constant.These methods are adopted to repair underground discharge of wastewater piping by municipality in the city, this class maintenance work is to implement in the auxiliary building in city, yet these two kinds of methods all require when connecting lead-in (pipeline that connects household or this class private industry of enterprise) often will implement in 5 feet to 12 feet dark holes, usually these holes all are in private household's backyard and the hole will be dug to such an extent that enough can hold a people greatly and go into interior operation, so there is the earth of 5 to 8 yards of as many as need control out and deposit.The connector that is used for lead-in and new polyethylene pipeline are coupled together is a saddle, it is clamped on the pipe with clip (or clip), this clip and automotive hose clip are quite similar, but because of the diameter of pipe between 8 inches to 12 inches, the diameter of this clip is also just much bigger.The saddle type connector that is clamped on the new polyethylene pipe is the pipe joint of various polyvinyl chloride (PVC), and it is connected on lead-in or the private user line to realize that lead-in connects.
Used lead-in method of attachment exists many problems, comprising native for excavating a large amount of earth near connecting portion and will transporting or handle these silts, the hole of digging out needs bracing reinforcement to reach the standard of working of " OSHA " in highly being deeper than 5 meters tunnels; Adopt saddle and clip just to need energy, and clip can not thoroughly solve the sealing problem of the water infiltration saddle on the polyethylene pipe outer wall of flowing through comprehensively near around the new polyethylene pipe; Tree root may put in, and also has when the backfill of hole saddle is moved or displacement.One of any the problems referred to above all can make connecting portion trouble occur, and Apparatus and method for of the present invention can make above-mentioned each problem all be overcome.
The U.S. 4,647, No. 073 patent announced a kind of be used for an arm be embedded in the clamping device that the underground person in charge is connected, this clamping device is reduced to the Trunk Line position from subsurface.
The U.S. 4,832, No. 069 patent has been announced a kind of method from (from the beginning) water pipeline top set water conservancy diversion, the little first half that only exposes the person in charge of this method excavation amount, placement one pipeline commonly used in place is then released device and need do not adopted the device that is provided with around pipeline.
The U.S. 4,978, No. 255 patents announced a kind of pass bonding be attached on the pipe surface saddle and on iron pipe the method for punching drainage, saddle is provided with occlusion and enters in the hole to prevent binding agent.
The method that above-mentioned patent relates to all is applicable to water pipe or (coal) tracheae of utility line.
The present invention relates to equipment and method that drop wire is connected with polyolefin pipe, more specifically say, this equipment includes one and is seated at the pedestal that is embedded on the underground polyolefin pipe and some extend to the bar of ground surface; One with the hinged heating element heater of pedestal; One vertical tube supporter, it is supported on the polyolefin pipe vertical tube fusion; And some are used for from ground surface landing and promote the bar of heating element heater, and particularly, the method includes the steps of: (1) determines the position of lead-in; (2) dig out diameter less than two feet pit hole in the lead-in position from ground surface to polyolefin pipe; (3) introduce a welder on the top of pipe, described pipe is polyethylene pipe normally, and fusion connects a vertical tube on polyethylene pipe; (4) pass the vertical tube that has fused and on pipe, get out a perforate.Can be earlier before the boring on pipe detect to prove conclusively fusion process and can not cause seepage, confirm that also vertical tube is connected on the pipe securely vertical tube.
How Fig. 1 to Fig. 6 makes a drop wire be connected to method step on the polyethylene pipe if simply depicting;
Fig. 1 has described location and excavation step;
Fig. 2 has described welder is incorporated into polyethylene pipe top and just makes vertical tube preparation welding in place;
Fig. 3 has described the welder side view that has heating element heater, and heating element heater is in respect to the polyethylene pipe and mentions the position at that time, also shows the preceding manned vertical tube of welding.
Fig. 4 has described the vertical tube that is positioned at the heating element heater on the polyethylene pipe top and is positioned on the heating element heater upper surface and has prepared the state of welding;
Fig. 5 has described the completed state of the welding of vertical tube on the polyethylene pipe, and the returned preparation of the heating element heater of welder is withdrawn from, and illustrates vertical tube is tested not cause seepage in the conclusive evidence welding operation; With
Fig. 6 has described the situation that vertical tube is holed of passing on polyethylene pipe;
Fig. 7 illustrates a kind of preferred excavator, excavator loaded onto spiral hammer drill (or auger boring device) be used for the excavation polyethylene pipe top is exposed;
Fig. 8 shows a kind of modified spiral hammer drill of the best, and it is suitable for slotting or enlarges the diameter of pit hole;
Fig. 9 illustrates a plate that is connected on the spiral hammer drill bottom flight, and it is used for, and the position enlarges pit hole diameter and hole, cleaning hole above polyethylene pipe;
Figure 10 is a perspective view of shaft bottom of the present invention welder;
Figure 11 is that the end of welder of the present invention is to perspective view;
Figure 12 is a decomposition diagram of welder heating element heater of the present invention.
Present device is used for implementing to introduce the method that connects to the polyethylene conveyance conduit and may further comprise the steps: (1) determines the position of lead-in; (2) excavate out diameter less than two feet pit hole (or hole, hole) at the lead-in place from ground to the polyethylene carrier pipe; (3) introduce welder to the top of polyethylene carrier pipe and the welding of a polyethylene vertical tube on the polyethylene carrier pipe; (4) pass the vertical tube that has fused and on the polyethylene carrier pipe, get out a perforate.This method can comprise further that also the testing procedure to the polyethylene vertical tube does not cause that with conclusive evidence Vent leaks in the welding operation that vertical tube is fused on the polyethylene carrier pipe, and will confirm that before getting out perforate on the polyethylene carrier pipe vertical tube and being connected of polyethylene carrier pipe are firm.Details that also should further clear and definite welding step particularly, promptly step (3) comprises step by step following: (3a) top that the heating element heater of welder and supporting construction are introduced polyethylene carrier pipe in the pit hole; (3b) vertical tube is located; (3c) make heating element heater be located on the upper surface of polyethylene carrier pipe and make vertical tube be located in the top of heating element heater and the upper surface of heating polyethylene pipe and the lower end of vertical tube; (3d) mention vertical tube, mention heating element heater immediately and vertical tube is dropped on the position of heating of polyethylene carrier pipe; Pressurization is until the alloying process of finishing polyethylene vertical tube and polyethylene carrier pipe on vertical tube.
At present two kinds of methods are mainly adopted in the maintenance of existing pipeline (posting the sewage conduct of polyethylene pipe such as the pipe of concrete that breaks or lining), one of them is called slip bushing pipe method, promptly a polyethylene pipe tractive than minor diameter is passed original pipeline.Another kind method is that former pipeline is smashed, and meanwhile introduces a polyethylene pipe, and these methods with the carrier pipe that polyethylene pipe displacement has been broken are used in the auxiliary building in the city, and this class auxiliary building is located at before the room of household and enterprise or behind the house.In slip bushing pipe method, unless former pipeline breakage could be implemented new connection to new polyethylene carrier pipe, and in the method that smashes the raw sewage pipe, old connection also disconnects simultaneously, so propose such requirement during to the new connection of the current enforcement of adopting method, promptly from house, a building or enterprise's (pipeline is private property often) in a degree of depth is 5～12 feet dark holes, operate when implement connecting, these holes are usually located in household's the backyard, the hole wants enough greatly to use hand operated so that can hold a people interior, so just need remove and deposit the silt soil of 5～12 yards of as many as, the problems referred to above that can occur in implementing new lead-in connection can be overcome one by one by the inventive method, and this will describe in detail hereinafter in conjunction with the accompanying drawings.
Now consult Fig. 1 to Fig. 6, summary is represented and has been described the inventive method and returned the situation of sewage conduct with new polyethylene carrier pipe displacement/maintenance among the figure, and (user) 37 lambda lines have adopted a polyethylene vertical tube.Determine the position of the lead-in 2 that links to each other with the sewage pipe that has broken, the polyethylene carrier pipe 10 that raw sewage Guan Youyi root is new replaces, for example, if a dwelling house block with one along a sewer (sewage conduct) that is positioned at the auxiliary building circulation behind the room, the polyethylene carrier pipe 10 of replacing usefulness so will replace original sewage conduct of the public backyard that is connecting two all households of the street, when the raw sewage pipeline is substituted, for implement to connect or also will be disconnected with the lead-in in the inventive method displacement house, the every building of raw sewage pipe, a kind of general each household lead-in localization method is that the sewage conduct that breaks is used the TV camera photography before being replaced by polyethylene pipe, and the starting point of noting the TV camera place is to the distance between every root user lead-in, if do not use televise, be positioned at ground initial the lighting in raw sewage pipe top along raw sewage Guan Bingcong and measure the position that distance just can be determined lead-in.After determining, will determine and the crossing position of original sewer line from the sewage pipe of each household, usually to excavate at backyard behind the sewage junction in finding out the house, because foul water system is to rely on flow by gravity, usually its starting point is very shallow and depend on that the common institute of the sewage pipe buried depth degree of segmentation degree is 5～12 feet from the pipeline in house, every building or subscribers feeder, and the last section that the pipeline (being that subscribers feeder-translator annotates) that comes from private industry links to each other with the sewage pipe in the auxiliary building normally is the form of vertical decline.
Fig. 1 has described the location of lead-in 2 and has excavated a diameter less than two feet pit hole 4 above polyethylene carrier pipe 10, be appreciated that this method uses also identically in new building, institute's difference is not to be to determine the position of lead-in but will determines that where lead-in should be arranged on to well.Excacation preferably adopts the spiral hammer drill that links to each other with a power unit to implement, and this will describe in detail hereinafter.The optimum diameter of pit hole 4 is 18 inches or 1.5 feet.If dig 5 feet earth, so only need deposit slightly silt soil, and also only need handle the silt soil that is less than 3/4 cubic yard if dig 10 feet earth more than 1/3 cubic yard.In the methods of the invention, all operations is all implemented on the ground, need there be anyone to enter in the pit hole 4 that digs out, pit hole 4 can be located immediately at the top of PEF carrier pipe 10, or be positioned at as shown in Figure 1 mutual alignment relation with 10 one-tenth 12 o'clock of polyethylene carrier pipe, yet the position between pit hole 4 and the polyethylene carrier pipe 10 can be unspecified angle position between 10 and 2 o'clock corresponding to position shown in Figure 1, preferably the sidewall of pit hole 4 roughly with polyethylene carrier pipe 10 at an angle of 90.Space around carrier pipe 10 need be cleared up.A kind of feasible pit hole 4 positions of scheme directly over polyethylene carrier pipe 10 are enlarged or are drawn out the space that groove holds the waste material such as the sewage pipe of fragmentation around the pipeline and the soil that becomes silted up with formation, these waste materials, silt soil can be pushed into form in the space.For providing required cleaning space or slotting can use fine son of spiral or manual equipment, yet a kind of improved spiral hammer drill is suitable for this operation, and this will be explained below.This has reached at excacation or pit hole 4 and has withdrawn from hammer drill 6 behind the upper surface of polyethylene carrier pipe 10 and, so that with giving local enlarge or cutting is sunk and cut portion's 5 usefulness, also will be described in further detail as shown in Figure 2 hereinafter in advance with repacking.Removing has at least 1/3 to 1/2 position to expose fully around the soil of the silt around the polyethylene pipe 10 and chip so that manage 10, remove except that entering expansion section or heavy silt soil and the chip that cuts the portion 5, clean the open surface of the polyethylene carrier pipe 10 that in pit hole 4, exposes, can use the brush or the wiper that are contained on the bar to clean the surface of polyethylene pipe 10 so that this new pipe and drop wire are fused.Fig. 2 has briefly showed the welder that comprises a heating element heater 11, and this equipment has descended and contacted with the surface of polyethylene carrier pipe 10.Heating element heater 11 shown in Figure 2 is to handle the surperficial position that moves vertically to polyethylene carrier pipe 10 with mechanical means with shadoof 12, and manipulation is implemented on the ground, and also available other embodiment is as adopting hydraulic system that heating element heater 11 is promoted or descending.The heating element heater 11 that comprises a hinge 13 is seated on the saddle on the polyethylene pipe 10, and welder comprises that also one supports and is positioned at the polyethylene saddle of vertical tube 16 ends or the supporting construction 14 of a polyethylene pipe end 15.The end 15 of saddle or polyethylene pipe will be by fusion on the surface of polyethylene carrier pipe 10.The vertical tube 16 of being supported and being aligned with polyethylene carrier pipe 10 by chuck and/or clip 18 descends and enters in the pit hole 4, chuck or clip 18 link to each other with supporting construction 14 and can slide thereon, it can be mechanical parts for example is a cam member, it can the tensioning by upwards spurring a cross bar on the ground, and when promoting lever downwards with a bar on the ground and discharge.Best clamping system is to adopt hydraulic pressure, and it both can be used to handle chuck, also can be used to drive the lifting of heating element heater when needing.Supporting construction 14 can be made of two or four poles, connects chuck and/or clip 18 on it so that vertical tube 16 is aimed at polyethylene pipes 10, and vertical tube 16 is descended or promotes, and this also will describe in detail hereinafter.
Now consult Fig. 3, Fig. 3 is the side view with respect to polyethylene pipe 10, has also described the step of introducing welder, welder comprise heating element heater 11 and with the saddle of polyethylene pipe 10 weldings or the end 15 of a polyethylene pipe.In pit hole 4, also can import a valve jacket 20 as shown in Figure 3, be pushed into undercut groove 5 back at chip and prevented any landslide with valve jacket 20 or become silted up native dropping on the open polyethylene pipe 10 that Guan Dingyi cleaned.It is contemplated that with various vertical tube 16 welders, yet a kind of preferred equipment includes chuck and/or the clip 18 that is supported by four bars, this chuck 18 makes vertical tube 16 location and aims at the open surface of polyethylene pipe 10, is fixed in case aim at back supporting construction 14.A kind of to make the fixed method of supporting construction be that pole is squeezed in the soil, yet also can utilize the open surface of polyethylene pipe 10 that it is fixed, and for example can use a collar that is contained on the pipe 10.Vertical tube 16 wishes that rising or descending motion are only arranged, and will confirm any rotation not to take place in case vertical tube 16 has been aimed at.
The heating element heater 11 that Fig. 4 illustrates welder has fallen with the top surface of heating polyethylene pipe 10 and the lower end 15 of vertical tube 16, and heated surface temperature can reach poly melt temperature, promptly about 500 °F.The lower end of vertical tube 16 is polyethylene saddle or is that root name justice diameter is the end of the polyethylene pipe of 4 feet or 6 feet that vertical tube 16 can be polyolefine material, such as polyethylene, polypropylene, polybutene or the material such as polyvinyl chloride (PVC).But high understanding, by alloying material be end 15 and pipe 10 both preferably be polyethylene, being heated in the lower end 15 of the top surface of polyethylene pipe 10 and vertical tube 16 (only needs less than 5 minutes) at first to mention vertical tube 16 usually when reaching molten condition, mention heating element heater 11 immediately to position shown in Figure 3, vertical tube 16 is descended it is contacted with the top melt surface of polyethylene pipe 10 and under pressurized state, maintain, the polyethylene end 15 of vertical tube 16 is fused with pipe 10 like this, as shown in Figure 5.
After fusion is finished, promptly cool off corresponding to the fusion composition surface between the top of the end 15 of vertical tube 16 and pipe 10, put into a test cord 30 on the top of vertical tube 16 to test the fusion situation, pressure is at 3 to 10psi (pound/inches
2) between compressed air feed in the pipeline 22, if the fusion between vertical tube 16 and the polyethylene pipe 10 is good, pressure just can maintain, this can be indicated by Pressure gauge 34, need one minute or be less than the test that can finish fusion quality in one minute.
Only after the fusion of vertical tube 16 is finished, preferably also passed through test, just can perforate on polyethylene pipe 10.Punching can be used a band saw 40 on polyethylene pipe 10, its diameter is slightly littler so that penetrate from vertical tube and can freely rotate in vertical tube than the internal diameter of vertical tube 16, thereby can on polyethylene pipe 10, cut out an embolism shape sheet, one spiral 42 that stretches out in the sawtooth below just enters tube wall and clamps from the embolism sheet of polyethylene pipe 10 cutting-outs and along with saw is pulled out together, has prevented that like this patch that downcuts from falling in the pipe 10.
Now consult Fig. 7, preferred excavator 70 profiles are very little, be easy to by-be 4 inches wide the door be placed in the backyard in room, the excavator of being recommended is a kind of kobota KX-41 type excavator, its width is less than 42 inches, this excavator can use one 15 inches bucket excavation to determine lead-in 4 positions, and machine can provide power to spiral hammer drill 6 subsequently.This excavator 70 also can connect a vacuum pick-up system so that absorb last left earth from the top of polyethylene pipe 10 in addition.
The best spiral hammer drill of suitable the inventive method has been shown among Fig. 8, spiral hammer drill 6 can only comprise two to five spiral lifts, and (lift that helix one changes is a spiral lift, perhaps as among Fig. 8 with " F " represented be lift), preferably adopt spiral hammer drill as shown in FIG. with twin-feed spiral lift, because this spiral hammer drill need rotate multi-turn when cutting pit hole 4 and spiral hammer drill withdraw from, the silt soil amount that is moved out of is easy to handle, when the degree of depth of pit hole 4 only had been close to apart from the top of polyethylene pipe more than 10 inches, the spiral hammer drill must take out repacking.As being shown specifically among Fig. 9, on the basal surface of the foot flight of spiral hammer drill 6, put a plate 54, the slotted eye 56 that plate 54 usefulness bolts or other forms of connector pass on every block of plate 54 is fixed on the foot flight of spiral hammer drill 6, one pair or overpay cutting teeth 58 and fix with plate 54, cutting teeth 58 is that the cutting edge place that is connected plate 54 is installed.Spiral hammer drill when rotation cutting teeth 58 heatable adobe sleeping platform wall portion of nipping, at this moment plate 54 is subjected to the active force that is pulled outwardly from spiral hammer drill 6, the plate 54 of rotation has enlarged the diameter of pit hole 4 or has provided a undercut groove portion 5, when this accessory application is used polyethylene pipe 10 displacements (former pipe) under the occasion of slip bushing pipe method, can be used to smash the concrete sewage conduct that has broken, have only when pit hole 4 has dug top to fast arrival polyethylene carrier pipe 10 just can connect this annex on the spiral hammer drill.The available conventional method of loosening the soil that the spiral hammer drill can't be taken out of, the aspirator (not shown) provides power to pump out by excavator 70 as everyone knows.
Implement the heating element heater that welding just needs to be equipped with a series of various sizes under various occasions, using the inventive method, more specifically say and to be equipped with heating element heater with different surfaces orphan degree, for example, when polyethylene pipe was applied to sliding in the method for replacing of bushing pipe, the external diameter of the polyethylene pipe that SDR21 is 7 inches was 7.125 inches; The diameter of the polyethylene pipe of a SDR21 inch is 8.63 inches; With the diameter of the polyethylene pipe of 10 inches of SDR21 be 10.750 inches; These pipes tractive respectively pass 8 inches, the burst pipe of 10 inches and 12 inches.On the other hand, if polyethylene pipe is with the occasion of changing broken pipe in situ, the corresponding polyethylene pipe that just should adopt the SDR178 inch respectively (external diameter-8.625 inch); 10 inches polyethylene pipes of SDR21 (external diameter-10.750 inch); With 12 inches polyethylene pipes of SDR21 (external diameter-12.750 inch).Because heating element heater 11 must have the radius identical with the outer surface of polyethylene pipe 10, this just requires to be equipped with the heating element heater more than, for example, the polyethylene pipe of the different size that may adopt for adapting to, the specification of heating element heater has 6 more than possibly, should be appreciated that be used in heating element heater on arbitrary polyethylene pipe as long as one just much of that, but its size should conform to the outer surface radius of this polyethylene pipe.No matter being the saddle or the end of a polyethylene pipe, the end 15 of vertical tube 16 also all should have the radius identical with the polyethylene pipe 10 of its phase welding, for example, the vertical tube an of the best is-4 inches SDR 17 polyethylene pipes, its external diameter (O.D) is 4.5 inches and its internal diameter (I.D.) is 3.97 inches, the end cut of 4 inches pipes becomes to have the radius identical with its polyethylene pipe that is fused 10, and vertical tube 16 also should possess the required length that has.Insert a current nipple in the upper end of 4 inches pipes, as the known Femco pipe joint of crowd, it is used for 4 inches pipes and lead-in conventional pvc pipe commonly used is connected, can use conventional straight pipe, ell and pipe joint is connected to implement lead-in, also available other 4 inches polyethylene pipes, the pipe that vertical tube is also available 6 inches.
Now consult Figure 10, described the most preferred embodiment of the shaft bottom welder that is used for the invention described above method among the figure, described equipment includes pedestal 40, one heating arrangements, 50, one vertical tube eyelid retractors 60 and and is used for the mechanism 70 of ferrochrome of mobile heating arrangement 50.Pedestal has a pedestal saddle holder 42, and its radius 43 is suitable for seat and is placed on the outer surface of polyethylene pipe 10.Pedestal also has two adjustable support bars 44 that stretch out from the holder of pedestal saddle at least.When saddle holder 42 was seated on the polyethylene pipe, bar 44 kept vertical with pipe 10.Bar 44 is made segmental structure, and total length can be regulated like this, and perhaps a certain section concrete size can change.Heating arrangement 50 comprises a heating ferrochrome 52, and this heating ferrochrome is to be made by aluminum profile extrusion, and it has upper surface 53 and lower surface 55 (seeing Figure 11).Heating ferrochrome 52 is hinged with saddle holder 42 by a hinge 56.Now consult Figure 12, heating ferrochrome 52 has a heater 58, accommodate one group of electricity cocainine winding in the heater, when electric current will produce heat by with resistance wire winding that hinge 56 is connected the time, heater 58 slides to pack into and heats in the ferrochrome 52, and the screw 59 on its screw and the heating ferrochrome is screwed into a screw when aligning is bonded together both.The axis of hinge 56 is vertical mutually with the axis of polyethylene pipe 10, and the radius of upper surface 53 and lower surface 55 radius with pipe 10 outer surfaces substantially is identical.Vertical tube eyelid retractor 60 comprises that one can face upward or downward mobile riser 62 on support bar 44, be connected with a cylindrical member 66 by a plate 64, around being set, one group of O shape rolls up 67 on its outer peripheral face, this columnar member 66 is inserted in the polyethylene vertical tube (not shown, among Fig. 2 16), the diameter of O shape volume 67 should have enough frictional force when making in columnar member inserts vertical tube, makes vertical tube can be held on and can be moved with columnar member 66 by columnar member 66 before fusion.Pipe 68 is connected with riser 62 and extends to ground, vertical tube just moves or moves down when pipe 68 promotes from ground or descends, be used for the mechanism 70 one pair of straight bar 72 preferably of the heating ferrochrome 52 on the mobile hinge 56, bar 72 links to each other by the both sides of bolt 74 with the heating ferrochrome.
The shaft bottom welder when installing connects each section support bar 44 and is connected with saddle holder 42, and the radius 43 in the saddle holder 42 is identical with the radius of pipe 10; If yet the radius of radius 43 and pipe not available simultaneously one plate that has with pipe 10 (not shown) same radius be connected the both sides of saddle holder 43 by utilizing screw 41 and bolt, manage on 10 thereby saddle holder 42 just can place securely.The vertical tube height 1/2 to 3/4 between the position placed a centering steadying plate 47, but the position of this plate can not be above one inch from the top of saddle holder 42.On the centering steadying plate 47 aperture 48 is arranged, its diameter is roughly identical with vertical tube, and this centering plate 47 can make the saddle holder guarantee in the course of the work to keep perpendicular with pipe 10.Add one section additional support bar 44 above plate 48, riser 62 is slidably mounted on this section support bar 44.Riser 62 is provided with hollow circuit cylinder cover 69, corresponding aperture is also arranged on the plate, thereby plate 62 can slide up and down along bar 44.The bar of enough hop counts couples together and can reach ground, upper end at bar 44 latter ends, between two sections, be provided with a steadying plate 49 when needing, steadying plate 49 can make pedestal keep enough stable when riser 62 liftings and make perpendicular tube and tube 10 to remaining mutual vertical relation.Disclose as above institute, pipe 10 may be various apart from the distance on ground, yet when the shaft bottom welder was installed on ground, the distance that ground identity distance pipe is 10 was known, the radius of also known deferent 10 outer surfaces.Thereby having roughly identical with the radius of pipe 10 surface 53 of its radius and 55 heating ferrochrome 52 is connected in the saddle holder 42 by hinge 52, the straight bar 72 of segmentation assembles, wherein first section both sides with the heating ferrochrome is connected, a vertical tube is pushed and is contained on the columnar member 66, and O shape volume 67 is supported on the riser 62 vertical tube.When welder the descend end of vertical tube when in place in shaft bottom can be resisted against the top of heating ferrochrome 52, just can implement above-mentioned welding procedure subsequently.
Claims (12)
1. one kind makes a polyolefin vertical tube be embedded in the underground polyolefin carrier pipe shaft bottom welder of welding mutually with one, wherein between underground, be provided with the pit hole of a diameter from ground less than two feet (0.6096 meters) at this place, so that described equipment can therefrom pass through, described equipment includes:
One sits the pedestal that is placed on the said polyolefins pipe;
Extend to the bar of a centering plate from said base, be provided with a perforate in the described centering plate;
One can be at the mobile polyolefin vertical tube holding device of extended bar from above-mentioned centering plate;
One heating element heater that is hinged with said base, described heating element heater has a upper surface and a lower surface, and the radius that upper and lower surface is had separately is roughly identical with said polyolefins tube outer surface radius; With
The device that makes above-mentioned heating element heater in above-mentioned pit hole, rise or descend to enforcement between the underground pipe from ground.
2. one press the shaft bottom welder of claim 1, it is characterized in that: above-mentioned vertical tube holding device comprises:
One can be at extended above-mentioned bar from above-mentioned centering plate mobile lifting, steadying plate; With
The one polyolefin vertical tube retainer that links to each other with above-mentioned riser.
3. one press the shaft bottom welder of claim 1, it is characterized in that: making the said apparatus of above-mentioned heating element heater lifting or decline is the bar that is connected above-mentioned each side of heating element heater.
4. one press the shaft bottom welder of claim 1, it is characterized in that: above-mentioned vertical tube holding device also comprises:
The vertical tube retainer of one hollow; With
After having heated, the lower surface of above-mentioned vertical tube mentions above-mentioned vertical tube removing above-mentioned heating element heater, and a piping installation that is used for testing vertical tube after above-mentioned vertical tube and the fusion of said polyolefins pipe.
5. one kind makes a polyolefin vertical tube be embedded in the underground polyolefin carrier pipe shaft bottom welder of welding mutually with one, wherein between underground, be provided with the pit hole of a diameter from ground less than two feet (0.6096 meters) at this place, so that described equipment can therefrom pass through, described equipment includes:
One sits the pedestal that is placed on the said polyolefins pipe;
Extend to the bar of a centering plate from said base, be provided with a perforate in the described centering plate;
One can be at the mobile polyolefin vertical tube holding device of extended bar from above-mentioned centering plate;
When said base had been placed on the said polyolefins pipe, some can provide sufficient length to extend to ground extension rod;
One heating element heater that is hinged with said base, described heating element heater has a upper surface and a lower surface, and the radius that upper and lower surface is had the separately roughly radius with the said polyolefins tube-surface is identical; With
Make described heating element heater at the described device that rises or descend in from ground to the pit hole between the buried pipe.
6. one press the shaft bottom welder of claim 5, it is characterized in that: above-mentioned vertical tube holding device also comprises:
The vertical tube retainer of one hollow; With
After having heated, the lower surface of above-mentioned vertical tube mentions the piping installation of above-mentioned vertical tube to remove above-mentioned heating element heater and after above-mentioned vertical tube and the fusion of said polyolefins pipe, to be used for testing vertical tube.
7. one kind makes a polyolefin vertical tube be embedded in the underground polyolefin carrier pipe shaft bottom welder of welding mutually with one, wherein between underground, be provided with the pit hole of a diameter from ground less than two feet (0.6096 meters) at this place, so that described equipment can therefrom pass through, described equipment includes:
Seat is placed on the base unit on the said polyolefins pipe, and described base unit has the bar of the aforementioned tube of extending perpendicularly to;
With the heater that the said base device is hinged, described heater comprises that one has the heating iron an of upper surface and a lower surface, and the radius that upper and lower surface has the separately roughly radius with the said polyolefins tube-surface is identical;
Be used on above-mentioned heating iron, laying in place so that an end fusion of above-mentioned vertical tube, and above-mentioned vertical tube is dropped on the said polyolefins tube-surface so that the vertical tube holding device that above-mentioned vertical tube and aforementioned tube are fused a vertical tube; And be used for provided from ground to the pit hole between the buried pipe in promote and the device of the above-mentioned heating element heater that descends.
8. a shaft bottom welder by claim 7 is characterized in that: comprise the device that above-mentioned vertical tube and said polyolefins tube-surface are kept in touch.
9. in order to the polyethylene carrier pipe of displacement sewer line, implement the method that introduction pipe line connects for one kind, comprise:
(1) determines the position of above-mentioned lead-in;
(2) excavate out a pit hole at above-mentioned lead-in place from ground down to polyethylene displacement pipe;
(3) a heat welded equipment is incorporated into the top of polyethylene pipe and a vertical tube is fused on the polyethylene pipe; With
(4) on polyethylene pipe, get out a perforate by the vertical tube that has fused.
10. method by claim 9 is characterized in that: also comprise:
Before the boring vertical tube is being tested on the polyethylene pipe, with conclusive evidence Vent is not being taken place in the welding operation and leak, and will confirm that vertical tube is connected with polyethylene pipe securely.
11. the method by claim 9, it is characterized in that: its step 3 comprises step by step following:
(3a) introducing one comprises the welder of heating element heater and supporting construction;
(3b) vertical tube is positioned in the supporting construction;
(3c) make heating element heater in place and make vertical tube in place in order to the heating upper surface of polyethylene pipe and the lower end of vertical tube on polyethylene pipe on the top of heating element heater;
(3d) mention heating element heater after mentioning vertical tube, descend vertical tube immediately rapidly to the heating position of polyethylene pipe; Pressurizeing till the fusion of finishing vertical tube and polyethylene pipe on the vertical tube.
12. the method by claim 9 is characterized in that: the diameter of the pit hole that excavates described in the step 2 is less than the pit hole of two feet (0.6096 meters).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94195221A CN1058933C (en) | 1994-11-14 | 1994-11-14 | Apparatus and method for down hole fusing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94195221A CN1058933C (en) | 1994-11-14 | 1994-11-14 | Apparatus and method for down hole fusing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1174532A CN1174532A (en) | 1998-02-25 |
| CN1058933C true CN1058933C (en) | 2000-11-29 |
Family
ID=5039715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94195221A Expired - Fee Related CN1058933C (en) | 1994-11-14 | 1994-11-14 | Apparatus and method for down hole fusing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1058933C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108724750B (en) * | 2017-04-25 | 2024-08-09 | 迈得医疗工业设备股份有限公司 | Hose connector mounting device |
| CN111531894B (en) * | 2020-05-14 | 2021-12-07 | 宝鸡天联汇通复合材料有限公司 | Polyethylene pipeline welding equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966528A (en) * | 1974-08-14 | 1976-06-29 | Joe William Christie | Apparatus and method for joining a branching fitting to a pipe |
| US4519124A (en) * | 1983-09-12 | 1985-05-28 | Burghardt Stanley M | Method of positioning a U-bolt on a conduit |
| US4533424A (en) * | 1984-01-13 | 1985-08-06 | Mcelroy Manufacturing, Inc. | Pipe fusion apparatus with load cell for attaching side wall fittings |
| US4556207A (en) * | 1982-02-01 | 1985-12-03 | Cliffside Pipelayers | Clamping apparatus for plastic pipe |
| US4869619A (en) * | 1987-10-20 | 1989-09-26 | Kabushiki Kaisha Iseki Kaihatsu Koki | Method for excavating hole and apparatus therefor |
-
1994
- 1994-11-14 CN CN94195221A patent/CN1058933C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3966528A (en) * | 1974-08-14 | 1976-06-29 | Joe William Christie | Apparatus and method for joining a branching fitting to a pipe |
| US4556207A (en) * | 1982-02-01 | 1985-12-03 | Cliffside Pipelayers | Clamping apparatus for plastic pipe |
| US4519124A (en) * | 1983-09-12 | 1985-05-28 | Burghardt Stanley M | Method of positioning a U-bolt on a conduit |
| US4533424A (en) * | 1984-01-13 | 1985-08-06 | Mcelroy Manufacturing, Inc. | Pipe fusion apparatus with load cell for attaching side wall fittings |
| US4869619A (en) * | 1987-10-20 | 1989-09-26 | Kabushiki Kaisha Iseki Kaihatsu Koki | Method for excavating hole and apparatus therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1174532A (en) | 1998-02-25 |
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