EP3123096A1 - Procédé et dispositif de nettoyage de faisceaux de tubes - Google Patents

Procédé et dispositif de nettoyage de faisceaux de tubes

Info

Publication number
EP3123096A1
EP3123096A1 EP15713189.7A EP15713189A EP3123096A1 EP 3123096 A1 EP3123096 A1 EP 3123096A1 EP 15713189 A EP15713189 A EP 15713189A EP 3123096 A1 EP3123096 A1 EP 3123096A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
pressure hose
tube
cleaning device
tube bundle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP15713189.7A
Other languages
German (de)
English (en)
Other versions
EP3123096B1 (fr
Inventor
Reinhard Eisermann
Bodo SKALETZ
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LOBBE Industrieservice GmbH and Co KG
Original Assignee
LOBBE Industrieservice GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LOBBE Industrieservice GmbH and Co KG filed Critical LOBBE Industrieservice GmbH and Co KG
Priority to PL15713189T priority Critical patent/PL3123096T3/pl
Publication of EP3123096A1 publication Critical patent/EP3123096A1/fr
Application granted granted Critical
Publication of EP3123096B1 publication Critical patent/EP3123096B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G1/00—Non-rotary, e.g. reciprocated, appliances
    • F28G1/16—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris
    • F28G1/163—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris from internal surfaces of heat exchange conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0323—Arrangements specially designed for simultaneous and parallel cleaning of a plurality of conduits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0325—Control mechanisms therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0433—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided exclusively with fluid jets as cleaning tools
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/003—Control arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/04—Feeding and driving arrangements, e.g. power operation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/04—Feeding and driving arrangements, e.g. power operation
    • F28G15/06—Automatic reversing devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G15/00—Details
    • F28G15/08—Locating position of cleaning appliances within conduits

Definitions

  • the invention relates to a method for cleaning tube bundles with ends open at the ends, in particular tube bundles of heat exchangers, air coolers or condensers, in which a cleaning device having at least one cleaning device is positioned adjacent to the open ends of the tube bundle and then the at least one Pressure-hose having cleaning device arranged successively in alignment with the respective tube of the tube bundle by a control device and the cleaning device is inserted into the respective tube and pressurized with liquid under high pressure. Furthermore, the invention relates to a device for cleaning tube bundles with ends open at the ends, in particular tube bundles of heat exchangers, air coolers or condensers according to the preamble of claim 6 and claim 18.
  • Tube bundles are used industrially in a variety of applications, for example in heat exchangers, condensers, air coolers, etc. Depending on the heat transfer medium, it can not be avoided that the tubes of the tube bundles become clogged or crusted with soiling or the like over an extended period of use, which may result in individual tubes even completely failing. It is therefore necessary to clean the inside of the tubes of such tube bundles and possibly the mirror of the tube bundle from time to time.
  • a method for cleaning tube bundles according to the preamble of claim 1 and an apparatus for cleaning tube bundles according to the preamble of claim 16 is already known.
  • This known device is used in particular to be able to clean radioactively contaminated tube bundles in a simple manner and essentially without manual work in their immediate vicinity.
  • a video camera and lamps are arranged and there is provided a remote control unit with hand levers and with a monitor for the video camera, which controls the movements of the cleaning trolley and the high-pressure hose.
  • the object of the invention is to improve a method and a device of the type described above so that a user-error-free reliable and fast cleaning takes place. This object is achieved by a method having the features of claim 1 and by a device having the features of claim 16 and claim 18, respectively.
  • the method of the type described above is characterized in that during the insertion of the at least one cleaning device in the respective tube, the depth of insertion is measured and monitored by the control device.
  • the monitoring of the depth of insertion preferably includes continuous monitoring, measuring and / or checking the depth of insertion in order to document the progress of the cleaning. It is also possible to additionally or exclusively record the maximum insertion depths achieved.
  • the term insertion means both the insertion of the high-pressure hose into the pipe and the passage of the high-pressure hose through the respective pipe.
  • An automated cleaning method in which the depth of insertion of the cleaning device is measured and monitored during each insertion process (possibly attempted) of the at least one cleaning device into the respective tube. If the control device determines that the cleaning device or the high-pressure hose could not be inserted completely or not completely into the respective pipe, an error message may be generated, which may result, for example, in a manual subsequent cleaning of the relevant pipe. Operating errors are largely excluded because of the control device each tube of the tube bundle is approached with the at least one cleaning device, a not complete cleaning of a tube is determined by determining the respective depth of insertion. Very particularly preferably, it is provided that the respective insertion depth is stored in the control device or in a storage and documentation device connected to the control device and documented for the respective cleaning process.
  • the storage and documentation device can also be integrated in the control device.
  • the documentation preferably comprises the assignment of the respectively measured insertion depth to the relevant pipe, eg to the pipe number or to the location of the pipe, which is defined eg via corresponding X and Y coordinates. Further, the documentation preferably includes information as to whether each tube was approached and whether each tube could be partially or completely cleaned. By storing this data, the completeness of the cleaning is documented.
  • the cleaning result is documented for each pipe so that a three-dimensional contamination profile of the pipe bundle can be created in conjunction with the insertion depths.
  • a contamination profile has the advantage that constructive weak points, e.g. a heat exchanger, can be derived so that specific structural changes can be made to the heat exchanger to reduce the pollution and the degree of contamination of a tube bundle in the future.
  • constructive weak points e.g. a heat exchanger
  • specific structural changes can be made to the heat exchanger to reduce the pollution and the degree of contamination of a tube bundle in the future.
  • a cleaning device with several parallel cleaning devices is used, which are simultaneously inserted into adjacent tubes and whose depth of insertion is measured and monitored independently of each other.
  • the respective arrangement and insertion movement of the respective cleaning device is performed automatically or semi-automatically by the control device on the basis of stored geometry data of the tubes of the tube bundle.
  • the geometry data of the tubes are preferably understood to mean the location coordinates of the tubes.
  • the geometry data may also include pipe spacing and / or diameter and / or length of the pipes and / or number of pipes.
  • the cleaning process can be done fully automatically.
  • control commands are entered by the operator into the control device, preferably by means of a remote control.
  • the remote control can be connected via a cable or via radio to the controller.
  • the fully or semi-automatic cleaning of the pipes has the advantage that the operator can stand away from the pipe bundle to be cleaned, heat exchangers, etc.
  • the operating personnel can stay outside the danger zone and thus do not come into contact with the pipe contaminants during the cleaning process.
  • a visual contact with the end face of the tube bundle is not required because the release for approaching the next position via the feedback of the servomotors for the hose drive. For example, the command to continue and save the data can then be given
  • the high-pressure hose or the high-pressure hoses can also be inserted into the pipes during this initial shutdown and the cleaning process can be carried out immediately.
  • the geometric position of all the tubes of the tube bundle is detected and stored, so that the geometry data are stored for the subsequent cleaning process or the cleaning operations in the future.
  • Each subsequent cleaning process as such can then be carried out fully or semi-automatically on the basis of the geometric data thus acquired.
  • the insertion depth is preferably measured by a servomotor of a propulsion device for the high-pressure hose of a cleaning device.
  • a servomotor electric motors are understood that allow the control of the angular position of the motor shaft and the rotational speed and acceleration.
  • Servo motors usually have a sensor for determining the position of the motor shaft. The determined by the sensor rotational position of the motor shaft is transmitted to a control electronics, which is referred to as a servo controller.
  • the measurement of the insertion depth is determined by evaluation z. B. determines the number of revolutions of the drive shaft taking into account the scope of a drive roller for the high-pressure hose.
  • the insertion depth can be determined in this way with high accuracy.
  • the torque of the servomotor during the insertion of the high-pressure hose into the pipe is measured continuously or discontinuously, and the torque data are stored together with the respective insertion depth in the control device or in a storage and documentation device connected to the control device.
  • the torque values can be used to determine the degree of contamination of the relevant pipe.
  • the servomotor z, B. is switched off, switched into a free-flushing mode, into the return or into a vibrating mode. If the torque increases during insertion over a predetermined value and does not fall back to normal, the obstacle can not or can not be easily eliminated and the cleaning process should be stopped at this point first to the Do not damage the servomotor and / or the outlet nozzle located at the front end of the high-pressure hose.
  • the servomotor may be switched to a purging mode in which the hose tip is stopped for a predetermined time in front of the obstacle, the obstacle is sprayed with the pressurized cleaning fluid, and after the lapse of time, the high pressure hose is advanced further.
  • the obstacle may be washed away under certain circumstances, so that the cleaning process can be performed according to plan in this tube to the end.
  • the servomotor can also be switched immediately into the return in such cases, to drive out the high-pressure hose from the pipe.
  • control device or the storage and documentation device.
  • the slip of the propulsion device is monitored during the insertion of the high-pressure hose.
  • Slip is usually understood as the deviation of the velocities of mechanical elements in frictional contact.
  • the speed difference z. B. determined between two rollers.
  • the propulsion device has, for example, a drive roller and a pressure roller, the slip over the speed difference of these two Roles are determined.
  • the advantage of slip monitoring is that an obstacle within the pipe can be detected in time.
  • the slip measurement can be used to correct the measured insertion depth. The accuracy of the determination of the depth of insertion is thereby improved.
  • the insertion depth can be measured by scanning marks applied to or in the high-pressure hose.
  • the cleaning device is attached to the tube bundle. Since the cleaning device preferably has a displacement device on which the cleaning device is arranged, the displacement device is fastened to the tube bundle. Preferably, the displacement device is fastened exclusively to the tube bundle, preferably on a flange of the tube bundle.
  • Such a flange is provided on the end face of a tube bundle to fasten a lid there. After removal of the lid of this flange can be used to fasten the displacement device.
  • This attachment has the advantage that it is possible to completely dispense with undercarriages or cleaning trolleys, which simplifies the installation of the cleaning device on the bundle to be cleaned.
  • the space requirement for the cleaning device is significantly lower than in the conventional cleaning equipment.
  • the orientation of the cleaning device determined with respect to the tube bundle and stored the data obtained in the control device and taken into account in the correction of the travel of the cleaning device.
  • a mechanical adjustment of the displacement device can be omitted.
  • the orientation of the cleaning device preferably relates to the orientation of the displacement device with respect to the rows of tubes, ie the pipe lines or pipe columns, wherein a so-called angular misalignment may occur. By taking into account the angular offset, the starting accuracy and thus the reliability of the cleaning device is further increased.
  • the invention also provides a device with the features of claim 16.
  • the device is characterized in that the propulsion device and / or the cleaning device is equipped with a measuring device for measuring the respective depth of insertion of the cleaning device into the respective tube, wherein the measuring device is connected to the control device
  • the device provides a displacement device which has at least one first frame element and at least one second frame element, wherein the first frame element and the second frame element are arranged perpendicular to one another. Furthermore, at least one cleaning device arranged on the displacement device is provided which has at least one high-pressure hose and at least one propulsion device, wherein the high-pressure hose can be inserted into the pipes by means of the propulsion device.
  • a cleaning device may have at least one cleaning device.
  • a cleaning device may have at least one propulsion device, wherein each propulsion device conveys a high-pressure hose.
  • a high-pressure hose is understood to mean a hose which can be exposed to a pressure of 25 bar to 3000 bar.
  • the high-pressure hose can be equipped with an outlet nozzle or a lance.
  • a lance is a piece of pipe at the front end of which an outlet nozzle is arranged or integrated.
  • a control device is provided, which is connected at least to the Verschiebeeinnchtung and to the propulsion device.
  • the cleaning device has a measuring device for measuring and monitoring the respective insertion depth Z of the high-pressure hose, wherein the measuring device is connected to the control device.
  • the control device has a storage and documentation device or is connected to a storage and documentation device in which at least the respectively measured insertion depth can be stored.
  • the displacement device has means for fastening to the tube bundle.
  • these means are designed so that the displacement device can be fastened exclusively to the tube bundle. This has the advantage that the Verschiebeeinnchtung no further racks or the like or a cleaning trolley needed on which the displacement device is mounted.
  • the displacement device and thus the entire cleaning device is thus compact and requires only a small footprint.
  • the device can be mounted in a short time on the tube bundle to be cleaned.
  • Another advantage of this embodiment is that the few components of the shifting device facilitate the transport of the entire device.
  • the position of the tube bundle or heat exchanger to be cleaned shear can be arbitrary.
  • the advantage of the displacement device is that it can be easily attached both to horizontal and to stationary tube bundles. The cleaning of the tube bundle is thus not dependent on the position of the tube bundle. Since the location coordinates of the tubes are known during the cleaning process, the so-called mirror image, ie the recognizable at the end face of the tube bundle arrangement of the tubes may be different. It is possible that the tubes of the tube bundle are grouped together in which the pipe distances z. B. may be different, as is the case for example with shared heat exchangers.
  • the first frame element to have the means for fastening to the tube bundle and for the second frame element to be arranged movably on the first frame element along the first frame element.
  • the first frame member is thus fixedly secured to the tube bundle and only the second frame member is movable relative to the first frame member.
  • the cleaning device or the cleaning devices is / are arranged movably on the second frame element.
  • the propulsion device has at least one drive roller for propulsion of the high-pressure hose.
  • at least one pressure roller for pressing the high-pressure hose against the drive roller is preferably provided.
  • the propulsion device has a slip monitoring device of the drive roller.
  • This monitoring device is preferably connected to the control device, so that when a slip occurs, the propulsion device is used to prevent Damage to the propulsion device or the hose end, can be switched off.
  • the data supplied by the slip monitoring device can also improve the accuracy of the insertion depth.
  • the propulsion device has at least one servo motor which drives the drive roller.
  • the propulsion device may have a measuring device for measuring the torque of the servomotor.
  • the advantages of the torque measurement are explained in connection with the method according to the invention.
  • an outlet nozzle is preferably arranged.
  • the outlet nozzle may have one or more outlet openings.
  • the outlet nozzle can also be rotatably arranged and driven, for example, by the cleaning fluid flowing through the high-pressure hose.
  • the storage and documentation device is preferably designed for storage, processing, processing and evaluation of data accumulating during operation of the cleaning device and / or input data.
  • a plurality of parallel cleaning devices are provided with their own propulsion device, wherein each cleaning device and / or each propulsion device are equipped with its own measuring device.
  • the respective measuring device has measuring sensors and measuring marks cooperating therewith on a high-pressure hose.
  • a magnetic scanning, an ultrasonic scanning or the measurement of ohmic inductive or capacitive resistances comes. or a visual check with a suitable camera.
  • eddy current sensors which can measure distances on metal high-pressure hoses with extremely high resolution up to the nanometer range without contact and wear.
  • the high-frequency field lines of the sensors responsible for the measuring principle pass through non-metallic media unhindered. This property allows measurement under oil or water pressure or under heavy pollution. Housing parts and materials made of plastic can also be penetrated and underlying metal objects can be detected. Paints and films can be examined for layer thickness.
  • the respective measuring device has roller keys which are in contact with the surface of the high-pressure hose.
  • the depth of insertion of the respective high-pressure hose can then be determined on the basis of the number of revolutions of the roller keys.
  • the respective cleaning device may have a high-pressure hose with outlet nozzle.
  • the respective cleaning device may also have a high-pressure hose with a lance connected thereto and insertable into the respective tube.
  • the frame elements preferably consist of a rigid profile and can be equipped, for example, with toothed racks on which the relevant drive devices can act to move the cleaning device.
  • Fig. 3 partially a high pressure hose with spaced
  • FIG. 4 is a plan view of the front end of an open tube bundle with a pipe cleaning device according to another embodiment
  • FIG. 5 is another plan view of the front end of the tube bundle with a displacement device according to another embodiment
  • FIG. 6 is a schematic representation of a drive device of a drive device
  • FIGS. 7 and 8 show two different crusting situations in a tube with associated torque diagrams of a servomotor.
  • a tube bundle 1 is e.g. a tube bundle heat exchanger, wherein the front-side open end can be seen, i. a cap or the like is dismantled.
  • the lid is normally attached to a flange or flange portion 2 with mounting holes 3.
  • the tube bundle 1 has in the sense of Figure 1 in the horizontal direction a plurality of parallel tubes 4, of which only a few are indicated.
  • a cleaning device according to the invention is provided, which is generally designated 5. is net.
  • This device 5 has at least two frame elements, namely a horizontal frame member 6 and a vertical frame member 7. These frame members 6, 7 are thus arranged perpendicular to each other.
  • the horizontal frame member 6 can be moved in the direction of the double arrow 6a with a drive, not shown in the horizontal direction
  • the vertical frame member 7 can be moved with a drive, also not shown relative to the horizontal frame member 6 in the vertical direction in the direction of the double arrow 7a.
  • a reverse arrangement is possible.
  • the two frame elements 6, 7 can be arranged on a (not shown) cleaning trolley, which may have its own drive, but need not.
  • the two drive units of the two frame members 6 and 7 are connected to a control device 50, not shown, which makes it possible to move a support point 8 on the frame member 7 at any point of the end face of the tube bundle 1.
  • a support frame 9 is fixed, on which a cleaning device 20 is arranged.
  • the cleaning device 20 has a high-pressure hose 11 and a propulsion device 10 for the high-pressure hose 11.
  • This propulsion device 10 has, as shown in Figure 2, a tubular tube guide 12 and at least one drive roller 32, not shown, for insertion of the tube 11 in a tube 4 of the tube bundle 1 or for pulling it out, ie for movement of the tube 1 1 in the direction of the double arrow 13.
  • the at least one drive roller 32, not shown, is connected to a drive, not shown, which in turn is in communication with the control device 50.
  • the cleaning device 20 of this embodiment comprises the illustrated high-pressure hose 11, which at the front ren free end having a nozzle, not shown. The back of the high pressure hose 11 to a high pressure pump or dgi., Connected.
  • a second or further cleaning device (s) 20 can also be provided at a distance on the support frame 9, so that a corresponding positioning of the support frame 9 relative to the tube bundle 1 can simultaneously push a plurality of high-pressure hoses 11 into adjacent tubes 4.
  • the high-pressure hose 11 is equipped with a measuring device 40 for measuring the respective insertion depth of the high-pressure hose 11 into the respective pipe 4.
  • a measuring device 40 for measuring the respective insertion depth of the high-pressure hose 11 into the respective pipe 4.
  • two arranged at the input and output of the propulsion device 10 measuring sensors 14 are provided.
  • the high pressure hose 1 1 is shown in Fig. 3 at regular intervals with markings 15, e.g. provided in the form of magnetic strips, which can be detected by the sensors 14.
  • the sensors 14 are in communication with the control device 50.
  • each high-pressure hose 11 is moved by a separate servo motor 30 and the measurement of the depth of insertion via the servo motor 30 as a measuring device 40 takes place.
  • the device 5 For cleaning a tube bundle 1, the device 5 is arranged on the front side of the open tube bundle 1, the further cleaning procedure then takes place fully automatically. table.
  • the geometry data of the tubes 4 of the tube bundle 1 are preferably stored in the control device 50, so that the control device 50 automatically positions the respective cleaning device 20 successively on the tubes 4 of the tube bundle 1.
  • the geometry data of the tubes 4 of the tube bundle 1 are not known, they can be recorded or recorded manually with the cleaning device 5.
  • each tube 4 of the tube bundle 1 with the at least one cleaning device 20 is scanned or scanned, such that the cleaning device 20, so e.g. the tip of the high pressure hose 11, located at the entrance of the respective pipe 4.
  • the cleaning device 20 so e.g. the tip of the high pressure hose 11, located at the entrance of the respective pipe 4.
  • all tube positions are detected and stored in the control device 50.
  • the geometry data thus acquired can then be used for the subsequent cleaning process or subsequent cleaning operations.
  • the respective cleaning device 20 or the high pressure hose 11 is then retracted from the associated propulsion device 10 in the respective tube 4 and water or the like. Fed under high pressure to perform the cleaning process in the respective tube 4.
  • the insertion depth for each tube 4 is measured and monitored by the control device 50. If no or only incomplete cleaning of a pipe 4 takes place, an error message or even a warning message can be output directly from the control device 50. In addition, the respectively measured insertion depth of each tube 4 is stored in the control device 50 and documented for the respective cleaning process.
  • FIG. 4 shows a further embodiment of a cleaning device 5 which has a displacement device 25 with a first frame element 60 and a second frame element 70.
  • the first frame member 60 has attachment means 62a, b, which are designed as tabs in the embodiment shown here. These fastening means 62 a, b are attached to the flange 2 of the tube bundle 1. For this purpose, the mounting holes 3 are used in the flange 2.
  • the second frame member 70 Perpendicular to the stationary mounted first frame member 60, the second frame member 70 is arranged, which is arranged by means of a drive means 72 along the first frame member 60 movable in the arrow direction. On the second frame member 70, a further drive means 74 is arranged, which is connected to a support member 9, on which a cleaning device 20 is arranged.
  • the cleaning device 20 comprises a propulsion device 10 for two hoses 1 and a measuring device 40.
  • a second cleaning device 20 can also be arranged on the support frame 9, which, like the first cleaning device 20, has a propulsion device 10 for two hoses 11 as well as a measuring device 40.
  • the second cleaning device 20 is shown in dashed lines.
  • the support frame 9 is arranged movable in the direction of the arrow along the second frame member 70.
  • the drive devices 72 and 74 and the propulsion device 10 and the measuring device 40 are connected to a control device 50, which has a storage and documentation device 52.
  • a remote control 54 is provided, with which an operator can transmit commands to the control device 50.
  • a coordinate system is drawn, the zero point in the tube 4c, which serves as a reference tube in the present case, is located.
  • the tube 4c is located at the left end of the upper tube row and represents the starting point for the cleaning process. Starting from the tube 4c, the tubes 4 are driven in rows until all the tubes 4 have been cleaned. In principle, any tube 4 can be selected as the reference tube 4c.
  • This coordinate system and the pipe coordinates x and y lying in this coordinate system are stored in the control device 50 or the storage and documentation device 52.
  • This geometry data can be obtained from the manufacturer or operator of the tube bundle 1 and entered into the control device 50. It is also possible to manually remove the tubes 4 by means of the remote control 54 and to exhaust the corresponding x, y data in the control device 50 or the storage and documentation device 52, and preferably also to simultaneously clean the tubes 4.
  • the cleaning process can then be carried out, manually only the pipe 4c is started.
  • the process can then proceed fully automatically or semi-automatically, wherein, for example, the change from one row of tubes to the next row of tubes can be carried out manually.
  • the storage of, for example, the depth of insertion can also be done manually with each tube by means of the remote control 54.
  • the first frame element 60 is fastened to the flange 2 in the same way as in FIG. For stability reasons, it may be advantageous to arrange a further first frame element 60 on the opposite side on the flange 2.
  • the second frame member 70 not shown, is arranged on both frame members 60. Before the cleaning process is carried out, the orientation of the displacement device 25 to check the pipe assembly.
  • the first frame element 60 can not be arranged parallel to the tube rows 82 on the flange 2, so that an angular offset ⁇ occurs.
  • This angle offset between see the parallel 80 to the first frame element 60 and the tube row 82 is determined and stored in the control device 50, so that in the process of the cleaning device 20 this angle offset ⁇ in the spatial coordinates x, y of the tubes 4 can be included and taken into account.
  • the pipe 4a is approached manually with the cleaning device 20 and the position is stored. Subsequently, the cleaning device 20 is moved in front of the tube 4b and this position also stored, from which then the angle ⁇ of the row of tubes 82 can be determined to parallels 80.
  • FIG. 6 schematically shows a propulsion device 10 for the high-pressure hose 1 1, which has two drive rollers 32 and 34 which are connected to one another via a belt or chain drive 33.
  • the drive roller 32 is driven by a servo motor 30 which is connected to the controller 50.
  • pressure rollers 36 and 38 are provided with which the high-pressure hose 11 is pressed onto the drive rollers 32 and 34, whereby slippage of the high-pressure hose 11 on the drive rollers 32, 34 is largely avoided.
  • the additional drive roller 34 and pressure roller 38 can be dispensed with if the high-pressure hose 1 1 and the drive rollers 32, 34 have surfaces with a corresponding roughness, so that slippage of the drive rollers 32, 34 does not take place.
  • a roller sensor 44 is arranged by means of a sensor holder 46, which is connected to a Schlupfüberwachungseinrumbletung 90. With the sensor 44, the rotational speed of the pressure roller 36 is detected.
  • This slip monitoring device 90 is also connected to the servo motor 30 and the control device 50.
  • the high-pressure hose 11 encounters an obstacle inside the pipe 4 to be cleaned, the high-pressure hose 1 1 is braked and there is the risk that the drive roller 32 still continues to run. Since the insertion depth is determined via the servomotor 30 and the servomotor 30 thus also forms the measuring device 40, this would lead to an error in determining the insertion depth. By means of the slip monitoring device 90, this problem can be detected so that the servomotor 30 is switched off immediately and any further running of the drive roller 32 can be included in the calculation of the insertion depth.
  • One of the pressure rollers 36, 38 may also be designed as a roller button when a high-pressure hose 1 1 is used with markings 15, as shown in Figure 3.
  • This pressure roller 36, 38 is in such an embodiment part of the measuring device 40 for measuring the insertion depth and is connected to the control device 50 or the storage and documentation device 52.
  • Various obstacles in the form of encrustations 16, 16a, 16b within the tubes 4 are shown in FIGS. Under the respective tubes 4, a schematic diagram of the torque D as a function of the distance z is shown.
  • the torque D of the servo motor 30 is constant during insertion of the high-pressure hose 11 into the pipe 4 and increases abruptly when the outlet nozzle 18 arranged at the front end of the hose 11 encounters an obstacle in the form of encrustation 16.
  • the torque is preferably detected with a torque measuring device 39 which is arranged in or on the servomotor 30 (see FIG.
  • FIG. 8 shows another situation in which two less large encrustations 16a, 16b are drawn.
  • the torque of the servomotor 30 increases. If it is possible to dissolve this encrustation 16a, the advance of the high-pressure hose 11 can be continued, so that the torque of the servomotor 30 drops again until the high-pressure hose 11 with the nozzle 18 strikes the next obstacle in the form of the encrustation 16b. If there, too, the encrustation 16b can be dissolved and eliminated, the torque drops again and the feed can also be continued.
  • An exemplary sequence of cleaning a tube bundle 1 can take place as follows: The individual frame elements 6, 7 or 60, 70 are delivered together with the cleaning device (s) 20 and the control device 50 and assembled on site to form a cleaning device 5. First, the first frame member 6, 60 is mounted on the tube bundle 1, and then the second frame member 7, 70 is mounted on the first frame member 6, 60.
  • the advantage of the device is that the frame elements can be mounted both on horizontally oriented tube bundles 1 and on vertically aligned tube bundles 1.
  • the device 5 is much more flexible than is the case with pipe cleaning devices in the prior art, which are mounted for example on a carriage that must be moved in front of the tube bundle to be cleaned 1, which is only possible in the case of horizontally arranged tube bundles 1.
  • the cleaning operation may be started after the input, whereby the cleaning operation starts at a reference pipe 4c which is manually started up.
  • a reference pipe 4c which is manually started up.
  • This can be, for example, the first tube 4 of the first row of a tube bundle 1.
  • the reference tube 4c may also be any tube 4 of the tube bundle 1. If there are no geometry data, the geometric data are determined locally by means of a manual startup of the tubes 4 and preferably also the tubes 4 are cleaned at the same time.
  • the cleaning device 20 moves in front of a pipe 4 which is closed with a stopper, the high-pressure hose 11 can not enter the pipe 4. It is this tube 4 then associated with appropriate information that the high-pressure hose 11 could not retract. These data are then stored in the storage and documentation device 52.
  • the high-pressure hose 1 can enter into the pipe 4 to be cleaned, there are two possibilities. Either the tube can be fully inserted into the tube 4 to the opposite end. Then the cleaning can be carried out on schedule and this cleaning success is also documented by storing the pipe data and the maximum depth of insertion achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cleaning In General (AREA)

Abstract

L'invention concerne un procédé de nettoyage de faisceaux de tubes (1) comportant des extrémités ouvertes du côté frontal, en particulier les faisceaux de tubes (1) d'échangeurs de chaleur, de refroidisseurs d'air ou de condenseurs, dans lequel un dispositif de nettoyage (5), qui comporte au moins un moyen de nettoyage (20), est positionné de façon adjacente aux extrémités ouvertes du faisceau de tubes (1) puis l'au moins un moyen de nettoyage (20), qui comporte un tuyau à haute pression (11), est disposé par un dispositif de commande (50) successivement en alignement avec le tube (4) respectif du faisceau de tubes (1) et le dispositif de nettoyage (20) est inséré dans le tube (4) respectif et est alimenté par un fluide sous haute pression. Le procédé est amélioré en ce qu'un nettoyage fiable est effectué sans erreur de commande. Ce résultat est obtenu en raison du fait que le dispositif de commande (50) mesure et surveille la profondeur d'insertion lors de l'insertion de l'au moins un dispositif de nettoyage (20) dans le tube (4) respectif.
EP15713189.7A 2014-03-28 2015-03-27 Procédé et dispositif de nettoyage de faisceaux de tubes Active EP3123096B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL15713189T PL3123096T3 (pl) 2014-03-28 2015-03-27 Sposób i przyrząd do czyszczenia wiązek rurek

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014104356.1A DE102014104356A1 (de) 2014-03-28 2014-03-28 Verfahren und Vorrichtung zum Reinigen von Rohrbündeln
PCT/EP2015/056734 WO2015144889A1 (fr) 2014-03-28 2015-03-27 Procédé et dispositif de nettoyage de faisceaux de tubes

Publications (2)

Publication Number Publication Date
EP3123096A1 true EP3123096A1 (fr) 2017-02-01
EP3123096B1 EP3123096B1 (fr) 2019-08-28

Family

ID=52779658

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EP15713189.7A Active EP3123096B1 (fr) 2014-03-28 2015-03-27 Procédé et dispositif de nettoyage de faisceaux de tubes

Country Status (8)

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US (1) US10048027B2 (fr)
EP (1) EP3123096B1 (fr)
CA (1) CA2941210C (fr)
DE (1) DE102014104356A1 (fr)
ES (1) ES2755362T3 (fr)
PL (1) PL3123096T3 (fr)
PT (1) PT3123096T (fr)
WO (1) WO2015144889A1 (fr)

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US11360494B2 (en) 2013-05-09 2022-06-14 Terydon, Inc. Method of cleaning heat exchangers or tube bundles using a cleaning station
US11327511B2 (en) 2013-05-09 2022-05-10 Terydon, Inc. Indexer, indexer retrofit kit and method of use thereof
US11294399B2 (en) 2013-05-09 2022-04-05 Terydon, Inc. Rotary tool with smart indexing
US10401878B2 (en) 2013-05-09 2019-09-03 Terydon, Inc. Indexer, indexer retrofit kit and method of use thereof
DE102015218114B4 (de) * 2015-09-21 2018-10-18 Lobbe Industrieservice Gmbh & Co Kg Verfahren und Vorrichtung zum Reinigen von Rohrbündeln
US11460258B2 (en) 2015-10-16 2022-10-04 Peinemann Equipment B.V. System for cleaning an object such as a heat exchanger
CN105318139B (zh) * 2015-11-30 2018-01-26 成都九十度工业产品设计有限公司 一种石油输送管道
US10502509B2 (en) 2016-05-03 2019-12-10 Peinemann Equipment B.V. Method and apparatus for cleaning tubes in a rotary path
WO2018004348A1 (fr) * 2016-06-28 2018-01-04 Statoil Petroleum As Perfectionnements relatifs à l'entretien d'échangeurs de chaleur
CN106440928B (zh) * 2016-08-27 2018-12-18 华电电力科学研究院 间接空冷岛的冷却三角热交换器内部脏污及腐蚀程度监视清洗装置和优化运行方法
US11733720B2 (en) 2016-08-30 2023-08-22 Terydon, Inc. Indexer and method of use thereof
US11300981B2 (en) 2016-08-30 2022-04-12 Terydon, Inc. Rotary tool with smart indexer
WO2018098556A1 (fr) 2016-11-28 2018-06-07 Candu Energy Inc. Système et procédé de nettoyage d'échangeur de chaleur
US11248860B2 (en) * 2019-02-20 2022-02-15 Stoneage, Inc. Flexible lance drive positioner apparatus
JP6648351B1 (ja) * 2019-04-26 2020-02-14 中国電力株式会社 閉塞物除去方法
EP3757504B1 (fr) * 2019-06-27 2023-06-14 Buchen Umweltservice GmbH Dispositif de nettoyage haute pression des tubes d'un échangeur de chaleur et procédé utilisant ledit dispositif
US20210310756A1 (en) * 2020-04-07 2021-10-07 Tubemaster, Inc. Device for Cleaning Inner Surface of Heat Exchanger Tubes
CN112696966A (zh) * 2020-12-24 2021-04-23 郑州航空工业管理学院 一种增强传热的换热管内芯
DE102021102411A1 (de) 2021-02-03 2022-08-04 Lobbe Industrieservice Gmbh & Co Kg Verfahren und Reinigungsvorrichtung zur Innenreinigung eines Rohrs
DE102021102410A1 (de) 2021-02-03 2022-08-04 Lobbe Industrieservice Gmbh & Co Kg Verfahren und Reinigungsvorrichtung zur Innenreinigung von Rohren
US11214450B1 (en) * 2021-03-11 2022-01-04 Cciip Llc Method of proofing an innerduct/microduct and proofing manifold

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Also Published As

Publication number Publication date
WO2015144889A1 (fr) 2015-10-01
DE102014104356A1 (de) 2015-10-01
CA2941210A1 (fr) 2015-10-01
PT3123096T (pt) 2019-11-21
PL3123096T3 (pl) 2020-03-31
US20170016687A1 (en) 2017-01-19
ES2755362T3 (es) 2020-04-22
EP3123096B1 (fr) 2019-08-28
CA2941210C (fr) 2023-01-03
US10048027B2 (en) 2018-08-14

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