CN2772730Y - Belt-pipe intelligent apertured cutting machinery of gas pipeline - Google Patents

Abstract

The utility model relates to a belt pressing intelligent apertured cutting machine of a gas pipeline, which belongs to the cutting machine and is used for cutting off the nonlinear cut of the pipeline. The aim of the utility model is to provide a belt pressing intelligent apertured cutting machine of a gas pipeline, which can install branch pipelines when the gas transmission pipeline is at work with the gas, and cut off the communicated part between the gas transmission pipeline and a main pipeline, and can also take out waste materials automatically. The utility model is characterized in that a high pressure water power system, a control machine, a sealing machine, a cutting executive mechanism which is composed of an adjustable main shaft, an adjustable vertical arm and an adjustable transverse arm, an electromagnetic chuck, a water jet nozzle, a displacement sensor and an electric control system are arranged on a working table rack. The utility model which is a high-tech product combined with the traditional mechanism theory and the information technology has the advantages of good security and high cutting efficiency, and achieves the integration of electromechanical liquid and the intelligent control. The utility model is also adequate for cutting pipelines made from concrete and other materials, and causes the belt pressing apertured technique of the pipeline to have a qualitative leap.

Description

Gas pipeline press and open holes smart-cut machinery

Technical field

The utility model belongs to cutting mechanics, is that pipeline forms the used cutting equipment that on-rectilinear cut downcuts.

Background technology

Pipeline transportation is the extensive critical facility of carrying of gas, as reaches thousands of kilometers western gas east and send pipeline.After gas pipeline comes into operation, because increasing of production development or user often need be carried out the main pipeline extension or new lateral is installed on main pipeline.But many enterprises are continuous production, and gas pipeline be in case operation just can not stop air feed, as iron and steel enterprise's blast furnace gas pipeline etc., the installation of lateral with pass through the part welding mutually and must under the band pressure is moved, carry out.Poisonous, inflammable and explosive, the easy contaminated environment of most combustion gas, security incident takes place in band press operation easily.Adopt pipe plugging machinery and technology to finish stopping transportation pressure perforate shutoff operation at present mostly.This method is at first bored many adjacent apertures on cylinder, the wall thickness 2-3mm that boxes out, Kong Houjun of every brill stops up with stopper, yellow mud, install lateral after, pull out cutting part by force with being welded in the draw ring that passes through the position mutually.Some large-scale iron and steel enterprises such as Anshan iron and steel plant have carried out relevant research work with R﹠D institution, colleges and universities in recent years, have developed combined pipeline press and open holes technology, the press and open holes technology that do not stop production and plasma smart-cut device etc.Though these technology can be finished stopping transportation pressure perforate shutoff operation, all have certain limitation, and working strength is big, efficient is low, still there are potential safety hazard, dangerous big or drawbacks such as mechanical driving device is heavy, bad adaptability.Moreover existing plasma smart-cut device adopts planetary wheeling mechanism to do circumferential feeding, and three grades of combined type trapezoid spiral mechanisms make axial feed, mechanism's heaviness, and cutting diameter is restricted.

Summary of the invention

The purpose of this utility model is to provide a kind of can install lateral at fuel gas transportation pipeline when being with the fate row, it is safe, air tight with the cutting that trunk line passes through part mutually, cutting efficiency is high, workman's working condition is good and can cut various calibers, thickness, the crossing non-standard intersection that forms of different angles automatically, and can take out the gas pipeline press and open holes smart-cut machinery of waste material automatically.The utility model is realized with following mode: a kind of gas pipeline press and open holes smart-cut machinery, it is characterized in that it has Working gantry 13, rotating stepper motor 10, linear stepping motor 14 are arranged on Working gantry 13, and support 9 after connecting adjustable main shaft 20 and main shaft, transition operation pipe 6 centers support 7 before main shaft is installed; Above-mentioned adjustable main shaft 20 front ends connect adjustable perpendicular arm 19, and this is adjustable, and perpendicular arm 19 both ends connect adjustable transverse arm 18 and adjustable transverse arm 21 respectively, thereby form cutting executing agency 16; Also connect magnechuck 3 in adjustable main shaft 20 front end ends, also connect water jet nozzle 2, also connect displacement transducer 17 in adjustable transverse arm 21 front end ends in adjustable transverse arm 18 front end ends; At adjustable main shaft 20 middle parts angular displacement sensor 8 is housed; Also be connected and installed with water under high pressure dynamical system 11, electric control system 12 in adjustable main shaft 20 rearward end.The utility model is that traditional mechanism is learned the high-tech product that combines with modern information technologies, has realized mechanical-electrical-hydraulic integration and Based Intelligent Control, and security is good, cutting efficiency is high.Be not only applicable to the cutting of any caliber steel-tube intersection-line, be applicable to the cutting of the pipeline of concrete and other material yet.Applying of it will make China's gas pipeline press and open holes technology produce qualitative leap, also will greatly promote the development of China's pipeline transportation.

Description of drawings

Fig. 1 is structural representation of the present utility model and working state figure.

Fig. 2 is the structural representation that cuts executing agency 16 of the present utility model.

The specific embodiment

Now the utility model is described in further detail in conjunction with the accompanying drawings.With reference to Fig. 1-Fig. 2, gas pipeline press and open holes smart-cut machinery mainly is made up of water under high pressure dynamical system, movement executing mechanism (cutting mechanics hand), control machinery, sealing machine etc.1. main technical requirements: the cutting that the trunk line 1 of gas pipeline passes through part 22 mutually is to carry out in branch stub road 4 with the good back of trunk line 1 welding in the branch stub road 4 of flanged dish 15 with getting material.Combustible gas cognition in the process of cutting in the trunk line 1 infilters in the branch stub road 4, therefore must guarantee that the operating part of cutting mechanics is in sealing state, to avoid gas leak.Cutting process must carry out automatically and can detect automatically and guarantee that tube wall all cuts; After cutting finished, cutting executing agency 16 can take out the cutting waste material automatically, branch stub road 4 should be able to be closed before 16 dismountings of cutting executing agency, required safe operation process reliable, and is simple in structure, operation, easy to maintenance.Consider that branch stub road 4 calibers that install in each place of working alter a great deal, require cutting mechanics can adapt to the cutting of different tube diameters during design, that can cut also that nonopiate pipe and non-standard pipe intersect passes through part 22 mutually.Not only cut quality was good, efficient is high when the utility model adopted the high-pressure water shot flow nozzle 2 that adds abrasive material to cut, can not produce high temperature, as safe as a house, and by regulating the pipeline that expulsion pressure can cut different-thickness, unlike material, the small amount of moisture (generally only several liters of per minute) that wide adaptability, cutting process produce influence concerning the very big combustion gas of flow is limited.Water under high pressure dynamical system 11 existing ripe products, moderate cost.Therefore the utility model adopts the cutting of water under high pressure (interpolation abrasive material) jet cutting as intersection.2, motion and control thereof: crossing pipeline passes through in the perforate cutting of part 22 mutually, and the track of cutting seam is a non-standard intersection in fact.This is because many gas pipelines and off-gauge circular pipe, particularly large-diameter steel pipe generally is to form with the roll of steel plate weldering, ovality is very big, after 4 welding of new branch stub road, the intersection of the intersection criteria of right and wrong of two pipe formation, welded tube periphery position while welding often has the appearance of built-up welding in addition, and nozzle cutting movement track is non-standard intersection.For guaranteeing cutting effect, the distance that will guarantee nozzle and cut surface during cutting is 4-5mm, if control the nozzle movement locus according to standard intersection curve, then be difficult to guarantee the distance of nozzle and cut surface, reduce cutting efficiency, even bump nozzle (nano ceramic material) disconnected or damage, bother very much and can cause gas to leak and in cutting process, will change nozzle.Therefore to guarantee that nozzle and the distance that is cut curved surface keep constant.With reference to Fig. 1, the angular displacement sensor of installing on adjustable main shaft 20 8 detects the variable quantity of manipulator angles, the displacement variable (phasic difference 180 is spent mutually) of cutting nozzles and cut surface when the eddy current displacement sensor of installing at the manipulator finger tip 17 detects adjustable main shaft 20 rotations.When adjustable main shaft 20 revolutions are crossed ω, eddy current displacement sensor 17 detect a Z to changing value λ Z and angle transducer 8 detect a circumferential angle changing value λ ω.Can obtain a functional relation according to eddy current displacement sensor 17 and angular displacement sensor 8 detected values about angle of eccentricity ω and displacement Z.With sending single-chip microcomputer to after the detected two paths of signals amplification processing, set up the Mathematical Modeling of multivariable coupling, single-chip microcomputer sends instruction again and finishes automatic control to executive item.Cut quality and control as follows: 4 inwall places carry out in the branch stub road in the intersection cutting, because of being subjected to spatial constraints, in most cases nozzle can not be perpendicular to the cutting surface, cause cutting thickness to change, how to guarantee to be cut pipeline and all cut, both can realize the cutting of different-thickness tube wall by the pressure of regulating the control high-pressure water jet; Also can be rotate a circle again and detect trunk line 1 and whether cut with eddy current displacement sensor 17 in cutting one week back, if also have one section circumference not cutting just wear detected signal be sent in the single-chip microcomputer, continue cutting through control program till cutting after with the signal lag half period.3, high-pressure water shot streaming system: the high-pressure water shot streaming system is made up of water under high pressure dynamical system 11, conveyance conduit and high-pressure water shot flow nozzle 2.Water under high pressure dynamical system 11 adopts extremely-high tension generator water to be pressurized to the pressure of 500-600MPa, nozzle by an about 0.2mm of diameter penetrates then, can produce the supersonic speed current that one flow velocity reaches 800-1000m/s, these current mix the formation abradant jet with abrasive material in the mulling chamber of cutting head, spouting by " sand blasting pipe " back again.Because of having sneaked into abrasive material, can increase the cutting kinetic energy of several times.Hydraulic spray has very strong rectification function, and injection water has good bringing together property, and abrasive water-jet almost can cut any material.4, operation executing agency: the pipeline cutting track is an intersection, and the utility model adopts and rotates in a circumferential direction, axially the compound motion of straight-line feed is realized.The track that rotates in a circumferential direction drives adjustable main shaft 20 rotations by rotating stepper motor 10 and realizes that axial feed is finished by moving forward and backward of linear stepping motor 14.Three-phase hybrid linear stepping motor 14 is made up of guide rail and slide block, integrates guide rail, screw mandrel, motor, and volume is little, and is easy to install, and wiring is simple, and rail length can select, and maximum full-length can reach 4m.Main shaft supporting supports after by the main shaft that is installed on the slide block before 9 main shafts of installing with instrumentation tubes sealed end center in the supporting 7, and rotating stepper motor 10 is installed in behind the main shaft in the supporting 9.With reference to Fig. 2, cut end is adjustable cutting executing agency 16 is for satisfying the split requirement of different tube diameters, and adjustable transverse arm 18, adjustable transverse arm 21 length are all adjustable.High-pressure water shot flow nozzle 2 is installed on the adjustable transverse arm 18, shaft position sensor 17 is installed on the adjustable transverse arm 21, adjustable main shaft 20 inner installations are got the material bar, front-end configuration magnechuck 3, and energising holds and is cut the position during cutting, after having cut waste material is taken out.It is that branch stub road 4 can only be equipped with slide valve 5 at the needs of considering 16 motions of cutting executing agency that sealing is carried out in cutting, transition operation pipe 6 exit cover plate for sealing, and adjustable main shaft 20 block bearings of cutting mechanism and sealing ring are installed in the cover plate center.After having cut, the cutting mechanics hand retreats in the transition operation pipe 6, is detachable whole cutter sweep after slide valve 5 cuts out.

Claims (1)

1, a kind of gas pipeline press and open holes smart-cut machinery, it is characterized in that it has Working gantry [13], rotating stepper motor [10], linear stepping motor [14] are arranged on Working gantry [13], and support [9] after connecting adjustable main shaft [20] and main shaft, [7] are supported before main shaft is installed in transition operation pipe [6] center; Above-mentioned adjustable main shaft [20] front end connects adjustable perpendicular arm [19], and this is adjustable, and perpendicular arm [19] both ends connect adjustable transverse arm [18] and adjustable transverse arm [21] respectively, thereby forms cutting executing agency [16]; Also connect magnechuck [3] in adjustable main shaft [20] front end end, also connect water jet nozzle [2], also connect displacement transducer [17] in adjustable transverse arm [21] front end end in adjustable transverse arm [18] front end end; At adjustable main shaft [20] middle part angular displacement sensor [8] is housed; Also be connected and installed with water under high pressure dynamical system [11], electric control system [12] in adjustable main shaft [20] rearward end.

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