CN1025073C - Patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline - Google Patents
Patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline Download PDFInfo
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- CN1025073C CN1025073C CN 91107953 CN91107953A CN1025073C CN 1025073 C CN1025073 C CN 1025073C CN 91107953 CN91107953 CN 91107953 CN 91107953 A CN91107953 A CN 91107953A CN 1025073 C CN1025073 C CN 1025073C
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Abstract
The present invention discloses a machine capable of automatically detecting the inner coating and patching up the missed coating of a steel pipeline. The machine adopts a module-assembled type electromechanical automated carriage type integrated structure with changeable and adjustable diameters. The machine is composed of an operation part, a driving part, a control part, a length-measuring part, a coating-detecting part, a crater-detecting part, a pick-up camera part, a spray coating part, a diameter-changing and adjusting part, a self-diagnosis protection part, etc. The machine can automatically walk in the pipeline, and simultaneously can detect all the defects of missing coating, micropores and thickness deficiency of an inner wall insulated coating and can simultaneously patch up the missed coating automatically. In addition, a coating defect position and a weld seam of a crater inner ring can be photo-recorded automatically. If the machine is blocked, slips or has insufficient battery voltage in the pipeline, the machine can automatically reverse and quit from the pipeline. The machine can be used for pipelines of various diameters of more than phi 219.
Description
The present invention relates to detection and the coating and the interior girth joint detection technique field of pipe welding port of steel conduit inner wall anti-corrosive coating.
The inside and outside wall corrosion-inhibiting coating of steel pipe and weld bond weldquality are two key issues that are related to pipework serviceable life and safe operation, therefore cause the great attention of domestic and international pipework circle already.Wherein the detection of pipeline outer wall corrosion-inhibiting coating and pipe outside weld detect, existing multiple mature technology and isolated plant in usefulness.Be exclusively used in spraying pipe welding port internally coated aut.eq. and also come out one after another, for example, United States Patent (USP) 3967584,4092950,4340010 and Chinese patent 91106511.3 etc.Being exclusively used in the aut.eq. that detects pipeline inner wall corrosion situation is succeeded in developing by american commerce resin company and PLS company etc.Girth joint radiography aut.eq. is succeeded in developing by Britain JME company etc. in the pipeline.And for example European patent application EP 282687, are the testing fixtures of defective in a kind of metallic conduit.It advances along the pipe interior limit by gaseous tension, and the limit is checked pipe interior, both can find local defect, can find inside diameter again and become greatly because of corrosion, also can find inner welding bead, and can videotape or record and locate check result.But, be exclusively used in the steel pipeline inner coating detection and do not see open report so far with the aut.eq. of coating.With regard to above-mentioned prior art, its agent structure all adopts the operating trolley form, and its operation process is finished by cable remote control outside pipeline mostly, and the length of therefore going deep into pipeline is restricted, and the traction cable operated is very inconvenient.Promote testing fixture by gaseous tension and advance, can bring inconvenience, and can be because of suddenly big or suddenly small with tube wall frictional force to construction, make pace neglect to neglect slowly fast, this to detection and shoot with video-corder resemble all unfavorable.If this device runs into obstacle in pipe, can not advance, can not retreat, in order to maintain gaseous tension, testing fixture itself will have higher impermeability, and this has just increased the complicacy of structure.Because many assembly of elements of this device all are contained in its body inner chamber, so its diameter is difficult to dwindle, also just are difficult to use in small diameter pipeline.Above-mentioned european patent application also has a disadvantage to be: as the ultrasonic emitting and the receiving sensor of defective in the access tube, can only radial location fixedly mount, impossible gross area inspection is certain to the many defect points of omission, and this detects for coating is unallowed.
The object of the present invention is to provide a kind of steel pipeline inner coating that is exclusively used in automatically to detect new-type facility with coating, it does not need the traction cable and goes control to finish walking and several work by self battery and PC industrial control unit (ICU).It not only can detect holiday, damage, the micropore of insulating coating automatically, exactly and owe defective such as thick in pipeline, and can carry out coating automatically to these defectives, perhaps the defective position is taken the photograph record mutually automatically, simultaneously can also be to the detection of using videotape to record automatically of the interior girth joint of per pass weld bond.
Above-mentioned purpose of the present invention is achieved through the following technical solutions.
Its overall structure form adopts the adjustable electromechanical automated job of modular assembly type reducing dolly, mainly by operating unit, driver element, control system and power supply unit, survey is long and heavy unit, coating detector, a weld bond detector, shoot with video-corder facies unit, spray unit, change caliber adjusting mechanism and self diagnosis protection system ten parts and form.Wherein, operating unit is positioned at dolly foremost, comprises guidance panel and display screen etc.; After the operating unit is driver element, comprises drive motor, speed reduction unit and driving wheel etc.; After the driver element is control system and power supply unit, comprises programmable controller and interface circuit thereof and battery; Be to survey long and a heavy unit more backward, comprise engaged wheel, driven shaft and bearing thereof, transmission gear and rotary encoder thereof; An end of surveying a length and a heavy unit is equipped with and becomes the caliber adjusting mechanism, and coating detector then is installed in the vertical rod of change caliber adjusting mechanism, and this detecting device comprises first high-pressure chamber, drive motor, speed reduction unit, capstan assembly and brass wire brush; After the coating detector is the weld bond detector, comprises second high-pressure chamber, supplemental support, elastic support and spy wheel thereof; Dolly is to shoot with video-corder facies unit or spray unit at last.Shooting with video-corder facies unit comprises warehouse, Cang Gai, camera and takes the photograph phase The Cloud Terrace, pickup camera and illuminating lamp; Spray unit comprises warehouse, coating case, paint pump and motor thereof, spray coating rotary cup and pot motor thereof.If require earlier internal coating to be detected, and its holiday, damage, micropore and the particular location of owing defective such as thick taken the photograph record mutually, perhaps require the interior girth joint picture recording of per pass weld bond is detected, just before dolly enters pipeline, load onto and shoot with video-corder facies unit; If only require internal coating is detected, and to its holiday, damage, micropore and owe defective such as thick and spray mending-leakage, just before dolly enters pipeline, unload and shoot with video-corder facies unit and change spray unit.
Coating detector adopts the high-voltage spark leak hunting method.Its probe adopts the soft contact capstan of the centrifugal rotation of multi-electrode version, can realize the scanning of wholecircle week.This capstan assembly mainly comprises carbon brush, copper ring, brass wire brush, rotating disk and tubular shaft.Carbon brush has the high voltage that first high-pressure chamber produces during work, is the dynamic conduction that contacts between fixed carbon brush and the rotating copper ring.Copper ring connects with lead between brass wire brush and by motor and speed reduction unit driven rotary.Because action of centrifugal force makes and has high-tension brass wire brush and dynamic soft contact of inner-walls of duct insulation course.When this automatic vehicle was walked in pipeline automatically, the brass wire brush electrode just carried out the scanning of wholecircle week to pipe internal coating.When running into defectives such as coating holiday, damage and micropore, this place promptly produces spark discharge; When running into thickness and do not reach the coating of requirement, local herein coating is equivalent to carry out simultaneously coat thickness detection promptly by high electrical breakdown, and carries out automatic coating together.
Pipe inner high voltage electric spark localization method both can have been adopted in the weld bond location of weld bond detector, can adopt transmitter outside pipe, to transmit at the weld bond place again, automatic vehicle with the method for receiver location, also can adopt the isotope localization method in pipe, external emission is inner to be received.When adopting the high-voltage spark detecting and positioning method, weld bond detector and coating detector are contained in the same warehouse assembly, utilize and visit wheel as rapier.This spy wheel is installed on the rubber-like support.The warehouse that the support upper end is installed in supplemental support front and high pressure probe unit links, and the back links with the warehouse of shooting with video-corder facies unit or spray unit.Visit wheel and have the high voltage that second high-pressure chamber produces, by gravity pressure the spy wheel is rolled with the pipeline lower inner wall and contact.Whenever dolly is gone to one when directly being pressed in uncoated tube wall without this spy wheel of the weld bond of coating, just produce spark signal, stop by PC industrial control unit (ICU) control dolly, then girth joint outward appearance situation in the weld bond is used videotape to record automatically.
Shoot with video-corder facies unit have the internal coating defective show, shoot with video-corder with weld bond in girth joint shoot with video-corder two kinds of functions, its shoot with video-corder require mutually different.When last functional requirement brass wire brush scans holiday, the certain distance of walking forward again, make pickup camera be in the position that phase is taken the photograph in requirement, both can axially take the photograph phase, can radially take the photograph phase again, when taking the photograph phase, the red led that is contained in before the pickup camera is shinny automatically, is shot with video-corder as the position coordinates of holiday.Back one function then requires pickup camera to aim at interior girth joint perpendicular to tube wall, and the record outward appearance live telecast of whole welding line down that rotates a circle.Should satisfy this two functional requirements, be subjected to the caliber restriction again, link with flexible circuit conductor so camera and pickup camera will be installed separately again.Camera is fixedly mounted on warehouse inside, and pickup camera is installed in to be taken the photograph on the phase The Cloud Terrace.The phase The Cloud Terrace of taking the photograph with two degree of freedom is installed in warehouse bonnet outside, can drive pickup camera and forward radial position to by pipeline axial, can drive pickup camera again and rotate a circle perpendicular to tube wall.
The warehouse of spray unit is similar to the warehouse shape and structure of taking the photograph facies unit, can exchange the rearmost end that is installed in this automatic vehicle.Spray unit of the present invention has adopted the mode of mixing in the double pump feed churning cup.In its warehouse, adorning a main reservoir and an auxiliary material box, a major ingredient pump and a secondary material pump, two material pump motors also have one directly to drive churning cup motor rotating at high speed.The churning cup is in the end held and is stretched out outside the lid of storehouse.After major and minor two kinds of coating mixed in the churning cup mutually, the centrifugal force that utilizes churning cup high speed rotating to produce evenly sprayed to mixed liquid coating on the circumferential inner wall of holiday position.
Survey effect long and a heavy unit and be equivalent to provide a length coordinate.When this automatic vehicle is walked in pipeline automatically, the number of turns that engaged wheel rolls converts corresponding pulse digital signal to by driven shaft, transmission gear and rotary encoder thereof, and be calculated to be length data by the PC industrial control unit (ICU), can record this automatic vehicle at any time and come into pipeline distance how long.Its objective is in order to indicate that this automatic vehicle detects the coating defectiveness wherein, detect which road weld bond wherein.This function is to cooperate by shooting with video-corder with the language circuit, and controls realization by the PC industrial control unit (ICU).Take out video tape and put phase time when operation finishes, be i.e. the residing extension position coordinate of each holiday or per pass weld bond as can be known.Also can adopt register to show length data, arrive the weld bond place in case find holiday or dolly, this director's degree coordinate data that camera can be shown with register shoots with video-corder simultaneously.
The effect that caliber changes adjusting mechanism is to be applicable in a big way caliber for this automatic vehicle as far as possible.It comprises radially vertical rod, down snap ring, go up snap ring and safetied pin up and down.Following snap ring is fixedly mounted on to be surveyed on the long unit housings rear end face, and last snap ring is fixedly mounted on the coating detector housing front end face.Radially the hypomere of vertical rod is contained in down in the snap ring and is locked pin locking; Radially the last stage casing of vertical rod is contained in the snap ring and is locked pin locking.By adjusting snap ring at the upper-lower position of vertical rod radially, can be the capstan of coating detector and brass wire brush, and spray coating rotary cup is adjusted on the central axis of tested pipeline.Change a kind of caliber and only need adjust once, very convenient.
The effect of self diagnosis protection system is when this automatic vehicle is hampered, is blocked, skids, meets water or cell voltage deficiency in pipeline, can judge voluntarily all, and be stopped operation by the control of PC industrial control unit (ICU) that automatic backing withdraws from pipeline then.These self diagnosis defencive functions are realized by the button sensor that is hampered, electric capacity hygrometric sensor, voltage sensor, various holding circuit, corresponding protection program and PC industrial control unit (ICU).
Master control system is one of chief component of this aut.eq..Main frame adopts the PC industrial control unit (ICU), is furnished with corresponding more than 140 steering orders and some interface expanded circuits.Its basic role is that pilot relay makes that each motor opens on time, stops, punctual forward and backward, camera are taken picture recording on time, and pilot lamp glimmers on time.Another effect of master control system is to combine with surveying long unit, adopts the high-speed counting mode, sets and detects length or detection time, arrives predetermined length or time, and this automatic vehicle promptly stops operation and automatic backing withdraws from pipeline.This just brings great convenience for practical application.
The present invention and aforementioned existing more close technology contrast, its major advantage is:
1, adopt the modular assembly type electromechanical integrated structure, complete machine is rationally distributed, compact, light and handy, attractive in appearance, and processing, assembling and maintenance are all very convenient, if local damage can be abandoned trade-in in the part.
Though 2, its reducing adjusting mechanism is simple, setting range is bigger, and this automatic vehicle both can be used for φ 219 pipelines under the situation that does not change physical dimension, can be used for φ 630 pipelines again, and range of application is wider.
3, it not only can detect automatically to pipeline coating, and the energy automatic leakage-repairing, can also use videotape to record automatically to girth joint in the weld bond simultaneously, has the advantage of one-machine-multi-function.
4, adopt the high-voltage spark method to detect pipeline coating, not only can check out defectives such as holiday, damage, micropore comprehensively, and can puncture the coating of thickness low LCL designing requirement.Be equivalent to carry out a thickness measuring quality check, then coating together.
5, weld bond adopts method of reseptance location in high-voltage spark or the outer emission, and is all very accurate reliable, simple and feasible.
6, utilize the engaged wheel rolling number of turns as the foundation of surveying length, and convert corresponding pulse digital signal to, handle and control by the PC controller again, because the skid phenomenon does not appear in engaged wheel, so not only simple and feasible but also accurately reliable by rotary encoder.
7, owing to adopt fixed length or two kinds of predefined working methods of timing, can select for use as requested, so use convenient.
8,, so this automatic vehicle is hampered in pipeline, when block, meeting water or cell voltage deficiency, can stop operation automatically, moves backward and withdraw from pipeline, so himself safe and reliable property is higher owing to have the self diagnosis defencive function.
9, because master control system has adopted advanced PC industrial control unit (ICU), and worked out rational control program, so function is more complete, automaticity is higher.
Details are as follows to embodiments of the invention in conjunction with the accompanying drawings:
By accompanying drawing 1 and Fig. 2 as seen, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline provided by the invention is the adjustable electromechanical automated job of a modular assembly type reducing dolly in fact.It mainly forms module: operating unit 2, and driver element 3, control module 6 is surveyed long and a heavy unit 10, becomes caliber governor motion 12, and high pressure probe unit 13 is shot with video-corder mutually or spray unit 17.Wherein, operating unit 2 comprises voltage table 1, counter 29, timer 30, operation selector switch 31, operating switch 32, power switch 33, shutdown switch 34, charging socket 35.Driver element 3 comprises drive motor 5, speed reduction unit 4 and driving wheel 28.Control module 6 is contained in the warehouse with electric battery 9, and programmable controller 8 and interface expanded circuit 7 thereof are contained in the warehouse first half, and it is latter half of that electric battery is contained in warehouse.Survey long and 10 of a heavy unit is installed in thin and place, footpath, this warehouse rear end, comprise engaged wheel 26, bearing 23, rotary encoder 11 and scrambler transmission gear 36(see Fig. 3).Become the caliber governor motion by snap ring 12A down, last snap ring 12B, radially vertical rod 12C and up and down safetied pin form, the warehouse of its unit, front and back is joined together.By adjusting the high and low position of snap ring 12B on vertical rod 12C radially, can and shoot with video-corder or spray unit 17 is adjusted to conduit axis concentric high-pressure detection unit 13.The first half of high-pressure detection unit 13 is coating detectors, sees shown in the attached Figure 4 and 5, comprises motor 14, transmission gear 21, tubular shaft 22, rotating disk 20, copper ring 43, carbon brush 44 and brass wire brush 15.The latter half of high-pressure detection unit 13 is weld bond detectors, comprises visiting wheel 19, elastic support 18, supplemental support 16.The warehouse of the front end of supplemental support 16 and high-pressure detection unit 13 links, and spray unit not only can be loaded onto but also can load onto and shoot with video-corder facies unit 17 in its rear end, and attached Fig. 1 and 2 loads onto to shoot with video-corder facies unit, and accompanying drawing 3 is to load onto spray unit.Shooting with video-corder the installation simplified schematic diagram of facies unit sees shown in accompanying drawing 6 and 7.Wherein 45 is pickup camera, be installed in two-freedom and take the photograph on the phase The Cloud Terrace 46, pickup camera with take the photograph mutually The Cloud Terrace as an integral installation outside the bonnet of warehouse 17, and controlled by the PC controller.Camera main body 47 is installed in warehouse 17 inside, controlled by the PC controller.The simplified schematic diagram of spray unit is seen shown in the accompanying drawing 3.Wherein 37 is main reservoir, and 38 is auxiliary material box, and 39 are churning cup power motor, and 40 are the churning cup, and 41 is secondary material pump, and 42 is the major ingredient pump.
In addition, the self diagnosis protection system of this aut.eq. is controlled by master control system all, can see among attached Fig. 1 and 2 that it goes out to manage parking sensor 24, the button that is hampered probe 25, and total power consumption reometer 27 and cell voltage table 1.
Complete machine master control system workflow diagram of the present invention is seen shown in the accompanying drawing 8.PC industrial control unit (ICU) wherein is the main frame of complete machine control system, enforcement model machine of the present invention has been selected the PC industrial control unit (ICU) of Japan OMRON for use, and worked out more than 140 steering order with trapezoid figure language, and also designed the corresponding interface expanded circuit, satisfied the control requirement of various functions.Special control procedure with several major functions is summarized as follows.
1, internal coating is leaked iron detection control
Its control procedure block scheme is seen shown in the accompanying drawing 9.At first operation selector switch 31 is pushed on the gear that iron Lou detects, after automatic vehicle all entered pipeline, the PC controller started relevant motor, high pressure generator by setup program respectively, shoot with video-corder mutually device etc. starts working.Motor 5 driving trolley are walked, stop and being moveed backward.Motor 14 drives and detects the rotation of capstan assembly, and each brass wire brush 15 that has high-tension electricity is all slightly contacted with inner-walls of duct.When running into internally coated holiday, damage, micropore and owe defective such as thick, produce spark signal, the distance back stand that makes PC controller control dolly move on certain makes pickup camera 45 be in the phase position of taking the photograph of requirement.Pickup camera is promptly by detecting requirement and pipeline axis parallel or vertical with tube wall and rotate a week defective coating was shot with video-corder for 5 seconds automatically then, meanwhile the red led before the pickup camera also glimmered for 5 seconds synchronously, made holiday stay tangible sign on video tape.Shoot with video-corder and finish, PC controller control dolly moves on again.
2, the detection of circumferential weld and picture recording control in the weld bond
Its control procedure block scheme is seen shown in the accompanying drawing 10.At first operation selector switch 31 is pushed on the gear of weld seam detection, after automatic vehicle all entered pipeline, the PC controller required to start respectively relevant motor, high pressure generator by setup program, shoot with video-corder mutually device etc. starts working.Because this kind operation is used less than detecting capstan and brass wire brush, so motor 14 is not worked, first high-pressure chamber does not have high voltage output yet.When visiting wheel 19 and run into weld bond tube wall without coating, produce spark signal, the distance back stand that makes PC controller control dolly move on certain.The PC controller is controlled and is taken the photograph 46 rotations of phase The Cloud Terrace, pickup camera 45 is forwarded to perpendicular to tube wall align interior girth joint.46 rotations of phase The Cloud Terrace are taken the photograph in the control of PC controller then; Make the pickup camera run-down, realize the full position detection of internal girth joint outward appearance, in time handle so that pinpoint the problems.
3, internal coating is leaked iron detection and mending-leakage control
Its control procedure block scheme is seen shown in the accompanying drawing 11.At first unload and shoot with video-corder facies unit, change spray unit.After automatic vehicle all entered pipeline, the PC controller required to start respectively relevant motor, high pressure generator, spray unit etc. by setup program and starts working.When brass wire brush runs into internal coating and leaks the iron defective, produce spark signal, make the stand behind the certain distance that moves on of PC controller control dolly.The major and minor material pump 42 of PC controller control spray body and 41 and churning cup power motor 39 start simultaneously, utilize action of centrifugal force, the coating that mixes in the churning cup 40 is sprayed to equably on the circumferential inner wall of iron defective position Lou.
The main technical detail that pipeline coating provided by the invention detects coating-supplementing machine automatically is: physical dimension 1800 * φ 190mm, and general assembly (TW) 50kg, total power consumption is not more than 150W, stream time 2h, speed of travel 11-13m/min, bearing accuracy ± 10mm is suitable for caliber scope φ more than 219.The voltage that its high-pressure chamber produces can be selected according to the breakdown voltage resistant value of internal coating that engineering design requires, and present embodiment is selected 1000 volts for use.
Claims (10)
1; a kind of patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline; adopt the adjustable electromechanical integration operating trolley of modular assembly type reducing formula one-piece construction; this device is by operating unit; driver element; control system and power supply unit; survey long and a heavy unit; coating detector; the weld bond detector; shoot with video-corder facies unit; spray unit; becoming caliber adjusting mechanism and self diagnosis protection system forms; it is characterized in that operating unit wherein is positioned at dolly foremost; comprise guidance panel and display screen; after the operating unit is driver element; comprise drive motor; speed reduction unit and driving wheel; be control system and power supply unit more backward; comprise programmable controller and interface circuit and battery; be to survey long and a heavy unit more backward; comprise engaged wheel; driven shaft; bearing; transmission gear and rotary encoder thereof; this cell end is equipped with and becomes the caliber adjusting mechanism; coating detector then is installed in the vertical rod of reducing adjusting mechanism; this detecting device comprises first high-pressure chamber; drive motor; speed reduction unit; capstan assembly and brass wire brush; after the coating detector is the weld bond detector; comprise second high-pressure chamber; supplemental support; elastic support and spy wheel; dolly is to shoot with video-corder facies unit or spray unit at last; shoot with video-corder facies unit and comprise warehouse; Cang Gai; camera and take the photograph the phase The Cloud Terrace; pickup camera and illuminating lamp, spray unit comprises warehouse; coating case; paint pump and motor thereof; spray coating rotary cup and pot motor thereof.
2, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline according to claim 1, it is characterized in that coating detector adopts the high-voltage spark leak hunting method, probe adopts the soft contact capstan of the centrifugal rotation of multi-electrode version, can realize the scanning of wholecircle week, this capstan assembly comprises carbon brush, copper ring, brass wire brush, rotating disk and tubular shaft, carbon brush has the high voltage that first high-pressure chamber produces, between fixed carbon brush and the rotating copper ring for dynamically contacting conduction, copper ring connects with lead between brass wire brush and by motor and speed reduction unit driven rotary, has high-tension brass wire brush and dynamic soft contact of inner-walls of duct insulating coating owing to action of centrifugal force makes.
3, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline according to claim 1, it is characterized in that when the weld bond detector adopts pipe inner high voltage electric spark detecting and positioning method, utilize and visit wheel as rapier, this spy wheel is installed on the rubber-like support, the support upper end is installed in the bottom of supplemental support, the warehouse of supplemental support front and high pressure probe unit links, the back links with the warehouse of shooting with video-corder facies unit or spray unit, visit wheel and have high voltage, make to visit to take turns by gravity pressure to contact with the rolling of pipeline lower inner wall.
4, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline according to claim 1, it is characterized in that the camera and the pickup camera of shooting with video-corder facies unit are installed separately, link with flexible circuit conductor again, camera is fixedly mounted on warehouse inside, pickup camera is installed in to be taken the photograph on the phase The Cloud Terrace, the phase The Cloud Terrace of taking the photograph with two degree of freedom is installed in warehouse bonnet outside, can drive pickup camera and forward radial position to by pipeline axial, can drive pickup camera again and rotate a circle perpendicular to tube wall.
5, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline according to claim 1 is characterized in that the warehouse of spray unit is similar to the warehouse shape and structure of taking the photograph facies unit, can exchange the rearmost end that is installed in this automatic vehicle.
6, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline according to claim 1 or 5, it is characterized in that spray unit adopts the mode of mixing in the double pump feed churning cup, adorn in its warehouse two hoppers, two material pumps, two material pump motors, one directly drive and revolve a glass motor rotating at high speed, the churning cup is in the end held and is stretched out outside the lid of storehouse.
7, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline according to claim 1, it is characterized in that surveying long and prop up and weigh in the unit, the number of turns that engaged wheel rolls converts corresponding pulse digital signal to by driven shaft, transmission gear and rotary encoder thereof, and be calculated to be length data by the PC industrial control unit (ICU), cooperate with the language circuit, or adopt the position coordinates that register shows can provide holiday and weld bond.
8, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline according to claim 1, it is characterized in that becoming the caliber adjusting mechanism comprise radially vertical rod, down snap ring, go up snap ring and safetied pin up and down, following snap ring is fixedly mounted on to be surveyed on the long unit housings rear end face, last snap ring is fixedly mounted on the coating detector housing front end face, radially the hypomere of vertical rod is contained in down in the snap ring and is locked pin locking, radially the last stage casing of vertical rod is contained in the snap ring, is locked after mixing up.
9, patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline according to claim 1 is characterized in that the self diagnosis protection system is made up of the button sensor that is hampered, electric capacity hygrometric sensor, voltage sensor, various holding circuit, corresponding protection program and PC industrial control unit (ICU).
10, according to claim 1 or 7 or 9 described patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline, it is characterized in that the main frame of control system adopts the PC industrial control unit (ICU), be furnished with more than 140 steering order and some interface expanded circuits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107953 CN1025073C (en) | 1991-12-11 | 1991-12-11 | Patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91107953 CN1025073C (en) | 1991-12-11 | 1991-12-11 | Patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline |
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| Publication Number | Publication Date |
|---|---|
| CN1061285A CN1061285A (en) | 1992-05-20 |
| CN1025073C true CN1025073C (en) | 1994-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91107953 Expired - Fee Related CN1025073C (en) | 1991-12-11 | 1991-12-11 | Patch-up-coating machine capable of automatically examination inner wall coating or steel pipeline |
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| CN112595205A (en) * | 2020-11-26 | 2021-04-02 | 浙江工业大学之江学院 | Pipeline detection device based on full automatic control |
-
1991
- 1991-12-11 CN CN 91107953 patent/CN1025073C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1299836C (en) * | 2002-08-20 | 2007-02-14 | 大日本网目版制造株式会社 | Application device and method |
| US8281846B2 (en) | 2007-10-24 | 2012-10-09 | Xiangrong Zhu | Curtain |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1061285A (en) | 1992-05-20 |
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