CA2143472A1 - Process for the guiding of an elongated element - Google Patents
Process for the guiding of an elongated elementInfo
- Publication number
- CA2143472A1 CA2143472A1 CA002143472A CA2143472A CA2143472A1 CA 2143472 A1 CA2143472 A1 CA 2143472A1 CA 002143472 A CA002143472 A CA 002143472A CA 2143472 A CA2143472 A CA 2143472A CA 2143472 A1 CA2143472 A1 CA 2143472A1
- Authority
- CA
- Canada
- Prior art keywords
- spindles
- rotation
- spindle
- blow
- controller
- 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.)
- Abandoned
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
- F28G15/00—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
- B08B3/024—Cleaning by means of spray elements moving over the surface to be cleaned
-
- 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
- F28G1/166—Non-rotary, e.g. reciprocated, appliances using jets of fluid for removing debris from external surfaces of heat exchange 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
Landscapes
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Cleaning In General (AREA)
- Incineration Of Waste (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Media Introduction/Drainage Providing Device (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Led Devices (AREA)
- Dicing (AREA)
- Thermistors And Varistors (AREA)
- Auxiliary Devices For And Details Of Packaging Control (AREA)
- Thin Film Transistor (AREA)
- Electric Vacuum Cleaner (AREA)
- Package Frames And Binding Bands (AREA)
- Structures Or Materials For Encapsulating Or Coating Semiconductor Devices Or Solid State Devices (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Die Bonding (AREA)
- Control Of Temperature (AREA)
- Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
- Attitude Control For Articles On Conveyors (AREA)
- Radiation-Therapy Devices (AREA)
- Magnetic Heads (AREA)
- Cleaning By Liquid Or Steam (AREA)
Abstract
One end of an elongated element, for example, a soot blower for the cleaning of firebox wall surfaces, is moved along a predetermined, meandrical blow figure. The element is supported in two spaced-apart cardanic joints the first of which is stationary and the second axially moveable on a first spindle.
The ends of the first spindle are axially moveable on two parallel second spindles. The first and one of the second spindles are respectively provided with non-mechanical, inductive end switches which are connected with a programmable controller.
The end switches determine a reference point in horizontal and vertical direction, and two end switches detect the rotations of the spindles as a measure of the distance travelled by the second cardanic joint. The impulses of the end switches which are proportional to the distance travelled are compared in the controller with the preselected blow figure, and the spindles are controlled according to the blow figure. The process ensures exact compliance with the blow figure independent of the speed of rotation of the spindles and, thus, permits adjustment of the residence time of the blow jet on any selected wall surface without affecting the compliance with the blow figure.
The ends of the first spindle are axially moveable on two parallel second spindles. The first and one of the second spindles are respectively provided with non-mechanical, inductive end switches which are connected with a programmable controller.
The end switches determine a reference point in horizontal and vertical direction, and two end switches detect the rotations of the spindles as a measure of the distance travelled by the second cardanic joint. The impulses of the end switches which are proportional to the distance travelled are compared in the controller with the preselected blow figure, and the spindles are controlled according to the blow figure. The process ensures exact compliance with the blow figure independent of the speed of rotation of the spindles and, thus, permits adjustment of the residence time of the blow jet on any selected wall surface without affecting the compliance with the blow figure.
Description
~143~72 PROCESS FOR THE GUIDING OF AN ELONGATED T~'TT~'MT~'~T
The invention relates to a process for the guiding of an elongated element for example a soot blower for the cleaning S of firebox wall surfaces. More particularly, the invention relates to a process for the guiding of an elongated element along a preselected meander-shaped blow figure.
Such an elongated element can be the lancet pipe of a soot blower used for the cleaning of the wall surfaces of pipes through which a heat exchange medium flows and the outer wall of which is exposed to soot laden flue gas as described in German Patent No. DE-OS 41 42 448. The water jet exiting the soot blower cleans the pipe surface of dust deposits. In order that the blow jet come in contact with the whole pipe surface, the lancet pipe is guided such that the output end thereof successively follows horizontal and vertical path sections and thereby follows a meandrical path. The lancet pipe has a moveable and a fixed end and is mounted at the fixed end on first and second spindles. Compliance with the meandrical blow figure is achieved by rotating a first spindle for a preselected time period with constant speed and subsequently operating the second spindle. During operation and under rough operating conditions, the spindles can become hard to rotate because of fouling or wear. However, the operation of the spindles is time dependent.
Thus, when the spindles rotate too slowly the direction of movement of the lancet pipe output end may change before reaching 21~72 -the preselected turning point of the blow figure. This results in incomplete cleaning of the pipe wall surface.
German Patent No. DD 281 452 discloses a controller for S this type of soot blower which is used for the cleaning of a soiled area of limited size and circumference. A blow figure is stored in this controller which figure is optimized with respect to the construction and the visually determined degree of soilage of the wall surface. The blow figure is transposed onto the spindles by way of a signal transducer and distance measuring devices.
It is now an object of the present invention to provide a process for the guiding of an elongated element of the above-described general type and supported by two cardanic joints whichprocess allows strict compliance with a preselected blow figure composed of a plurality of turning loops.
This is achieved by a process in accordance with the invention wherein the control of the spindles is distance dependent and no longer time dependent. This permits exact determination of the distance traveled by the cardanic joint and exact positioning of the moveable element. The travel distance is thereby exclusively determined through the driving mechanism of the element.
2143~72 Accordingly, the invention provides a process for guiding an elongated element supported at its opposite ends in first and second spaced apart cardanic joints in a predetermined, meandrical figure, the first cardanic joint being fixed and the second cardanic joint being supported on a first spindle and axially moveable thereon by rotation of the first spindle, opposite ends of the first spindle being supported on a pair of parallel second spindles and axially moveable thereon by rotation of the second spindles, whereby the first and one of the second spindles are provided with non-mechanical, inductive end switches that detect the rotations of the respectively associated spindle, comprising providing a controller which has a memory and is programmable, detecting a reference point in horizontal and vertical direction by a pair of first end switches and detecting with a pair of second end switches associated with the first and second spindles the individual rotations of the first and second spindles as a measure of the distance travelled by the second cardanic joint, comparing the impulses detected by the second end switches, which impulses are proportional to the distance travelled by the second cardanic joint, in the controller with impulse values corresponding to a preselected figure programmed into the controller, and controlling the first and second spindles so that the second cardanic joint follows the figure.
The process preferably includes the use of a frequency controller for the control of the operating speed of the 3-phase breaking motors driving the spindles. The residence time of the blow jet - 2143~72 on any desired wall portion can be varied with such a motor speed control according to the degree of soilage of the selected wall portion. The inclusion of a speed control in the control process in accordance with the invention is advantageous, because the process is only distance and not time dependent, so that the speed with which the blow jet is guided across the wall surface has no influence on the exact execution of the blow figure.
A preferred embodiment of the invention will be further 10 described in the following with reference to the drawings, wherein: -Figure l a side elevational view of a soot blower control arrangement;
Figure 2 shows a circuit diagram; and Figure 3 shows a blow figure.
In a preferred embodiment the process in accordance with the invention is used for the control of a water lance soot blower arrangement as shown in Figure l, wherein the blow medium, in this embodiment water, is pumped through a lance l. The output end l.l of the lancet pipe l extends through an opening 20 closed by a cover 2 and into a steamboiler firebox which is defined by pipe walls (not shown). The output end l.l of the lance l is supported in the cover 2 by a first cardanic joint 3.
The other end of the lance l is supported in a second cardanic 21~3~72 -joint 4. The second cardanic joint 4 is mounted on a first guide sleeve 5 which is supported on a first spindle 6 and axially moveable thereon by rotation of the spindle around a first axis of rotation 21. The first spindle 6 is rotated by way of a 3-S phase break motor 7. The ends 6.1 of the spindle 6 are mountedon second guide sleeves (not shown) supported on a pair of parallel, second spindles 8. The second guide sleeves are axially movable on the second spindles 8 by rotation of the second spindles around parallel second axes of rotation 22 orthogonal to the first axis of rotation 21. One of the pair of second spindles 8 is rotatable directly by way of a 3-phase break motor 9 and the other spindle 8 is rotated by way of a pair of chain drives 10 connecting the second spindles. Rotation of the first spindle 6 translates into a vertcial movement of the guide sleeve 5 and the second cardanic joint 4, mounted thereon whereby the output end 1.1 of the lance 1 and, thus, the blow jet ejected therefrom are also vertically displaced. Rotation of the second spindles 8 translates into a horizontal movement of the guide sleeve 5, the output end 1.1 and the blow jet (not illustrated).
The blow figure shown in figure 3 of the drawings which has horizontal and vertical portions that merge at turning points is achieved by alternatingly operating the first and second spindles 6, 8. The blow figure includes a reference point PO, which represents the origin of the coordinates used. The distance between a starting point PS and the first turning point 21~3472 in the horizontal direction is X1, the distance between the left and right turning points of the respectively horizontal sections of the blow figure is X2. During the horizontal movement phase, only the spindles 8 are operated. The vertical distance travelled by the blow jet in the respective vertical sections of the blow figure, when only the first spindle 6 is operated, is Y1. The distance travelled at the turning points when all spindles 6, 8 are operated is XY. The maximum vertical extent of the blow figure is designated Y2. The frame Z defines the limit defined by the construction of the operating mechanism and beyond which the blow figure cannot be extended.
As schematically illustrated in figure 2, the first and second spindles 6 and 8 are respectively provided with a pair of non-mechanical, inductive end switches 11, 12, 13, and 14. The end switches 11, 12 produce impulses corresponding to the rotations of the spindles 6, 8. The distance travelled by the second cardanic joint 4 can then be determined on the basis of geometrical parameters of the arrangement, and from the number of impulses produced. The location of the reference point PO is determined by the end switches 13, 14. End switches 11 to 14 are connected through control lines 15 with a controller 16 which has a memory and is programmable. The desired blow figure (see figure 3) to be followed by the blow jet is programmed into this controller. The impulses detected by end switches 11, 12 are counted and compared in the controller 16 with the impulse counts 21~3~72 corresponding to the stored blow figure. The 3-phase breaking motors 7, 9 are each provided with a contactor 17 for the forward and the backward rotation of the associated spindles 6, 8. The contactors 17 are connected to the controller 16 through control lines 15. Furthermore, a frequency converter 18 is provided which is connected with the contactors 17 and the controller 16.
During operation, the soot blower arrangement is controlled as follows. After release of the starting automatic, the lance 1 is aimed at the reference point PO in order to set the distance measuring system to zero. The arrival at the reference point PO is relayed in the X and Y directions by the end switches 13, 14 respectively. Thereafter, the spindles 6, 8 are operated until the lance 1 is aimed at the starting point PS.
Upon reaching the starting point PS, the supply of the blowing medium to the soot blower is opened and the blow jet guided along the blow figure by alternate operation of the first and second spindles 6,8 as described above in detail. For each of the horizontal or vertical distances travelled by the blow jet, the impulses which are detected by the end switches 11, 12 and represent a measure of the distance travelled by the guide sleeve 5 and, thus, the blow jet in horizontal and vertical direction, are counted (actual value) and compared by the controller with the stored values (desired value) of the programmed blow figure.
When the actual and desired values are equal, the required distance has been travelled and the next movement step is 21~72 commenced. When the blow figure is completed, the supply of blowing medium is shut-off and the soot blower arrangement moved to the resting point PR.
If it is desired to change the residence time of the blow jet, the speed of rotation of the 3-hase break motors 7, 9 is changed. This change in speed of the motors has no influence on how well the blow path travelled by the blow jet complies with the blow figure, since the end switches 11, 12 measure only the distances travelled and therefore operate reliably independent of how fast the blow figure is followed.
The disclosed control process is also suitable for elements other than soot blowers, which elements are elongated and supported in a pair of cardanic joints.
Changes and modifications in the specifically described embodiments can be carried out without departing from the scope of the invention which is intended to be limited only by the scope of the appended claims.
The invention relates to a process for the guiding of an elongated element for example a soot blower for the cleaning S of firebox wall surfaces. More particularly, the invention relates to a process for the guiding of an elongated element along a preselected meander-shaped blow figure.
Such an elongated element can be the lancet pipe of a soot blower used for the cleaning of the wall surfaces of pipes through which a heat exchange medium flows and the outer wall of which is exposed to soot laden flue gas as described in German Patent No. DE-OS 41 42 448. The water jet exiting the soot blower cleans the pipe surface of dust deposits. In order that the blow jet come in contact with the whole pipe surface, the lancet pipe is guided such that the output end thereof successively follows horizontal and vertical path sections and thereby follows a meandrical path. The lancet pipe has a moveable and a fixed end and is mounted at the fixed end on first and second spindles. Compliance with the meandrical blow figure is achieved by rotating a first spindle for a preselected time period with constant speed and subsequently operating the second spindle. During operation and under rough operating conditions, the spindles can become hard to rotate because of fouling or wear. However, the operation of the spindles is time dependent.
Thus, when the spindles rotate too slowly the direction of movement of the lancet pipe output end may change before reaching 21~72 -the preselected turning point of the blow figure. This results in incomplete cleaning of the pipe wall surface.
German Patent No. DD 281 452 discloses a controller for S this type of soot blower which is used for the cleaning of a soiled area of limited size and circumference. A blow figure is stored in this controller which figure is optimized with respect to the construction and the visually determined degree of soilage of the wall surface. The blow figure is transposed onto the spindles by way of a signal transducer and distance measuring devices.
It is now an object of the present invention to provide a process for the guiding of an elongated element of the above-described general type and supported by two cardanic joints whichprocess allows strict compliance with a preselected blow figure composed of a plurality of turning loops.
This is achieved by a process in accordance with the invention wherein the control of the spindles is distance dependent and no longer time dependent. This permits exact determination of the distance traveled by the cardanic joint and exact positioning of the moveable element. The travel distance is thereby exclusively determined through the driving mechanism of the element.
2143~72 Accordingly, the invention provides a process for guiding an elongated element supported at its opposite ends in first and second spaced apart cardanic joints in a predetermined, meandrical figure, the first cardanic joint being fixed and the second cardanic joint being supported on a first spindle and axially moveable thereon by rotation of the first spindle, opposite ends of the first spindle being supported on a pair of parallel second spindles and axially moveable thereon by rotation of the second spindles, whereby the first and one of the second spindles are provided with non-mechanical, inductive end switches that detect the rotations of the respectively associated spindle, comprising providing a controller which has a memory and is programmable, detecting a reference point in horizontal and vertical direction by a pair of first end switches and detecting with a pair of second end switches associated with the first and second spindles the individual rotations of the first and second spindles as a measure of the distance travelled by the second cardanic joint, comparing the impulses detected by the second end switches, which impulses are proportional to the distance travelled by the second cardanic joint, in the controller with impulse values corresponding to a preselected figure programmed into the controller, and controlling the first and second spindles so that the second cardanic joint follows the figure.
The process preferably includes the use of a frequency controller for the control of the operating speed of the 3-phase breaking motors driving the spindles. The residence time of the blow jet - 2143~72 on any desired wall portion can be varied with such a motor speed control according to the degree of soilage of the selected wall portion. The inclusion of a speed control in the control process in accordance with the invention is advantageous, because the process is only distance and not time dependent, so that the speed with which the blow jet is guided across the wall surface has no influence on the exact execution of the blow figure.
A preferred embodiment of the invention will be further 10 described in the following with reference to the drawings, wherein: -Figure l a side elevational view of a soot blower control arrangement;
Figure 2 shows a circuit diagram; and Figure 3 shows a blow figure.
In a preferred embodiment the process in accordance with the invention is used for the control of a water lance soot blower arrangement as shown in Figure l, wherein the blow medium, in this embodiment water, is pumped through a lance l. The output end l.l of the lancet pipe l extends through an opening 20 closed by a cover 2 and into a steamboiler firebox which is defined by pipe walls (not shown). The output end l.l of the lance l is supported in the cover 2 by a first cardanic joint 3.
The other end of the lance l is supported in a second cardanic 21~3~72 -joint 4. The second cardanic joint 4 is mounted on a first guide sleeve 5 which is supported on a first spindle 6 and axially moveable thereon by rotation of the spindle around a first axis of rotation 21. The first spindle 6 is rotated by way of a 3-S phase break motor 7. The ends 6.1 of the spindle 6 are mountedon second guide sleeves (not shown) supported on a pair of parallel, second spindles 8. The second guide sleeves are axially movable on the second spindles 8 by rotation of the second spindles around parallel second axes of rotation 22 orthogonal to the first axis of rotation 21. One of the pair of second spindles 8 is rotatable directly by way of a 3-phase break motor 9 and the other spindle 8 is rotated by way of a pair of chain drives 10 connecting the second spindles. Rotation of the first spindle 6 translates into a vertcial movement of the guide sleeve 5 and the second cardanic joint 4, mounted thereon whereby the output end 1.1 of the lance 1 and, thus, the blow jet ejected therefrom are also vertically displaced. Rotation of the second spindles 8 translates into a horizontal movement of the guide sleeve 5, the output end 1.1 and the blow jet (not illustrated).
The blow figure shown in figure 3 of the drawings which has horizontal and vertical portions that merge at turning points is achieved by alternatingly operating the first and second spindles 6, 8. The blow figure includes a reference point PO, which represents the origin of the coordinates used. The distance between a starting point PS and the first turning point 21~3472 in the horizontal direction is X1, the distance between the left and right turning points of the respectively horizontal sections of the blow figure is X2. During the horizontal movement phase, only the spindles 8 are operated. The vertical distance travelled by the blow jet in the respective vertical sections of the blow figure, when only the first spindle 6 is operated, is Y1. The distance travelled at the turning points when all spindles 6, 8 are operated is XY. The maximum vertical extent of the blow figure is designated Y2. The frame Z defines the limit defined by the construction of the operating mechanism and beyond which the blow figure cannot be extended.
As schematically illustrated in figure 2, the first and second spindles 6 and 8 are respectively provided with a pair of non-mechanical, inductive end switches 11, 12, 13, and 14. The end switches 11, 12 produce impulses corresponding to the rotations of the spindles 6, 8. The distance travelled by the second cardanic joint 4 can then be determined on the basis of geometrical parameters of the arrangement, and from the number of impulses produced. The location of the reference point PO is determined by the end switches 13, 14. End switches 11 to 14 are connected through control lines 15 with a controller 16 which has a memory and is programmable. The desired blow figure (see figure 3) to be followed by the blow jet is programmed into this controller. The impulses detected by end switches 11, 12 are counted and compared in the controller 16 with the impulse counts 21~3~72 corresponding to the stored blow figure. The 3-phase breaking motors 7, 9 are each provided with a contactor 17 for the forward and the backward rotation of the associated spindles 6, 8. The contactors 17 are connected to the controller 16 through control lines 15. Furthermore, a frequency converter 18 is provided which is connected with the contactors 17 and the controller 16.
During operation, the soot blower arrangement is controlled as follows. After release of the starting automatic, the lance 1 is aimed at the reference point PO in order to set the distance measuring system to zero. The arrival at the reference point PO is relayed in the X and Y directions by the end switches 13, 14 respectively. Thereafter, the spindles 6, 8 are operated until the lance 1 is aimed at the starting point PS.
Upon reaching the starting point PS, the supply of the blowing medium to the soot blower is opened and the blow jet guided along the blow figure by alternate operation of the first and second spindles 6,8 as described above in detail. For each of the horizontal or vertical distances travelled by the blow jet, the impulses which are detected by the end switches 11, 12 and represent a measure of the distance travelled by the guide sleeve 5 and, thus, the blow jet in horizontal and vertical direction, are counted (actual value) and compared by the controller with the stored values (desired value) of the programmed blow figure.
When the actual and desired values are equal, the required distance has been travelled and the next movement step is 21~72 commenced. When the blow figure is completed, the supply of blowing medium is shut-off and the soot blower arrangement moved to the resting point PR.
If it is desired to change the residence time of the blow jet, the speed of rotation of the 3-hase break motors 7, 9 is changed. This change in speed of the motors has no influence on how well the blow path travelled by the blow jet complies with the blow figure, since the end switches 11, 12 measure only the distances travelled and therefore operate reliably independent of how fast the blow figure is followed.
The disclosed control process is also suitable for elements other than soot blowers, which elements are elongated and supported in a pair of cardanic joints.
Changes and modifications in the specifically described embodiments can be carried out without departing from the scope of the invention which is intended to be limited only by the scope of the appended claims.
Claims (4)
1. Process for guiding an elongated element supported at its opposite ends in first and second spaced apart cardanic joints along predetermined, meandrical figure, the first cardanic joint being fixed and the second cardanic joint being supported on a first spindle and axially moveable thereon by rotation of the first spindle, opposite ends of the first spindle being supported on a pair of parallel second spindles and axially moveable thereon by rotation of the second spindles, whereby the first and one of the second spindles are provided with non-mechanical, inductive end switches that detect the rotations of the respectively associated spindle, comprising providing a controller which has a memory and is programmable, detecting a reference point in horizontal and vertical direction by a pair of first end switches and detecting with a pair of second end switches associated with the first and second spindles the individual rotations of the first and second spindles as a measure of the distance travelled by the second cardanic joint, comparing the impulses detected by the second end switches, which impulses are proportional to the distance travelled by the second cardanic joint, in the controller with impulse values corresponding to a preselected figure programmed into the controller, and controlling the first and second spindles so that the second cardanic joint follows the figure.
2. A process according to claim 1, wherein the first and second spindles are rotated by frequency controlled 3-phase breaking motors and the speed of rotation of the 3-phase breaking motors is controlled by the controller.
3. An apparatus for guiding an elongated element supported at its opposite ends in first and second cardanic joints, the first cardanic joint being held at a fixed location, comprising:
a first spindle rotatable about a first axis of rotation and a pair of parallel second spindles rotatable about second axes of rotation orthogonal to the first axis of rotation;
a first guide sleeve for supporting the second cardanic joint, the first guide sleeve being mounted on the first spindle and moveable therealong in direction of the first axis upon rotation of the first spindle;
a pair of second guide sleeves for respectively rotatably supporting opposite ends of the first spindle, the second guide sleeves being respectively mounted on one of the second spindles and being moveable therealong upon rotation of the second spindles;
first drive means for rotating the first spindle;
second drive means for rotating the second spindles;
detection means for counting the individual rotations of the first and second spindles, each rotation of the first spindle being proportional to a selected distance travelled by the first guide sleeve in direction of the first axis and each rotation of the second spindles being proportional to a selected distance travelled by the first spindle parallel to the second axes of rotation; and a programmable controller for comparing the rotation counts of the first and second spindles determined by the associated detection means with desired rotation counts programmed into the controller, and operating the first and second drive means until the desired rotation counts are achieved.
a first spindle rotatable about a first axis of rotation and a pair of parallel second spindles rotatable about second axes of rotation orthogonal to the first axis of rotation;
a first guide sleeve for supporting the second cardanic joint, the first guide sleeve being mounted on the first spindle and moveable therealong in direction of the first axis upon rotation of the first spindle;
a pair of second guide sleeves for respectively rotatably supporting opposite ends of the first spindle, the second guide sleeves being respectively mounted on one of the second spindles and being moveable therealong upon rotation of the second spindles;
first drive means for rotating the first spindle;
second drive means for rotating the second spindles;
detection means for counting the individual rotations of the first and second spindles, each rotation of the first spindle being proportional to a selected distance travelled by the first guide sleeve in direction of the first axis and each rotation of the second spindles being proportional to a selected distance travelled by the first spindle parallel to the second axes of rotation; and a programmable controller for comparing the rotation counts of the first and second spindles determined by the associated detection means with desired rotation counts programmed into the controller, and operating the first and second drive means until the desired rotation counts are achieved.
4. Apparatus as defined in claim 3, further comprising a means for varying the speed of the drive means and the respectively associated spindles.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4415010A DE4415010A1 (en) | 1994-04-29 | 1994-04-29 | Procedure for guiding an elongated element |
| DEP4415010.5 | 1994-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2143472A1 true CA2143472A1 (en) | 1995-10-30 |
Family
ID=6516779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002143472A Abandoned CA2143472A1 (en) | 1994-04-29 | 1995-02-27 | Process for the guiding of an elongated element |
Country Status (23)
| Country | Link |
|---|---|
| EP (1) | EP0679855B1 (en) |
| JP (1) | JPH07301498A (en) |
| KR (1) | KR950033407A (en) |
| CN (1) | CN1078505C (en) |
| AT (1) | ATE154122T1 (en) |
| AU (1) | AU683530B2 (en) |
| CA (1) | CA2143472A1 (en) |
| CZ (1) | CZ289639B6 (en) |
| DE (2) | DE4415010A1 (en) |
| DK (1) | DK0679855T3 (en) |
| ES (1) | ES2103140T3 (en) |
| FI (1) | FI951854A (en) |
| HR (1) | HRP950253B1 (en) |
| HU (1) | HU218435B (en) |
| PL (1) | PL178157B1 (en) |
| RO (1) | RO117983B1 (en) |
| RU (1) | RU2127409C1 (en) |
| SI (1) | SI0679855T1 (en) |
| SK (1) | SK281907B6 (en) |
| TR (1) | TR28909A (en) |
| UA (1) | UA26243C2 (en) |
| YU (1) | YU48866B (en) |
| ZA (1) | ZA951862B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996038702A1 (en) * | 1995-05-30 | 1996-12-05 | Clyde Bergemann Gmbh | System for driving a water jet blower with a housing for a confining and rinsing medium |
| US6035811A (en) | 1995-05-30 | 2000-03-14 | Clyde Bergemann Gmbh | Water lance blower positioning system |
| EP0828987B1 (en) * | 1995-05-30 | 2003-07-23 | Clyde Bergemann GmbH | Water jet blast with shortened water lance |
| US5925193A (en) * | 1995-05-30 | 1999-07-20 | Clyde Bergemann Gmbh | Method for cleaning pre-determinable surfaces of a heatable internal chamber and associated water lance blower |
| DE19637700C2 (en) * | 1996-09-04 | 2001-06-07 | Ver Energiewerke Ag | Water lance blowers for cleaning heat exchangers |
| US6655397B2 (en) | 2001-03-27 | 2003-12-02 | Diamond Power International, Inc. | Articulating water monitor cleaning device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2007781A1 (en) * | 1969-03-14 | 1970-10-15 | VEB Petrolchemisches Kombinat Schwedt, Schwedt | tentwesen, East Berlin WPI38568 Device for driving a sootblower for boilers, especially on downstream tubular boilers in gas generation plants |
| DD155857A3 (en) * | 1980-06-05 | 1982-07-14 | Friedrich Bude | ARRANGEMENT FOR LEADING A WATER LIGHT BLADDER |
| DE3112121A1 (en) * | 1981-03-27 | 1982-10-07 | Bergemann Gmbh, 4230 Wesel | SUSSBLAESER |
| DD281452B5 (en) * | 1987-07-15 | 2002-07-11 | Clyde Bergemann Gmbh | Method for controlling a cleaning device, in particular a water lance blower for the cleaning of Heizflaechen especially in the combustion chamber of a pulverized coal firing |
| DE4142448A1 (en) * | 1991-12-18 | 1993-07-08 | Ver Energiewerke Ag | Water-jet lance for cleaning heat-exchangers |
| DE4239410C2 (en) * | 1991-12-18 | 1997-07-17 | Ver Energiewerke Ag | Water lance blowers for cleaning heat exchangers |
-
1994
- 1994-04-29 DE DE4415010A patent/DE4415010A1/en not_active Withdrawn
-
1995
- 1995-02-23 SK SK242-95A patent/SK281907B6/en unknown
- 1995-02-27 CA CA002143472A patent/CA2143472A1/en not_active Abandoned
- 1995-02-27 YU YU12895A patent/YU48866B/en unknown
- 1995-03-06 JP JP7072373A patent/JPH07301498A/en active Pending
- 1995-03-07 ZA ZA951862A patent/ZA951862B/en unknown
- 1995-03-09 AU AU14790/95A patent/AU683530B2/en not_active Ceased
- 1995-03-24 KR KR1019950006342A patent/KR950033407A/en active IP Right Grant
- 1995-03-24 CZ CZ1995759A patent/CZ289639B6/en not_active IP Right Cessation
- 1995-03-28 CN CN95103627A patent/CN1078505C/en not_active Expired - Fee Related
- 1995-04-07 DK DK95105231.5T patent/DK0679855T3/en active
- 1995-04-07 AT AT95105231T patent/ATE154122T1/en not_active IP Right Cessation
- 1995-04-07 SI SI9530014T patent/SI0679855T1/en unknown
- 1995-04-07 DE DE59500281T patent/DE59500281D1/en not_active Expired - Lifetime
- 1995-04-07 ES ES95105231T patent/ES2103140T3/en not_active Expired - Lifetime
- 1995-04-07 EP EP95105231A patent/EP0679855B1/en not_active Expired - Lifetime
- 1995-04-10 PL PL95308068A patent/PL178157B1/en unknown
- 1995-04-19 FI FI951854A patent/FI951854A/en not_active Application Discontinuation
- 1995-04-25 HR HRP4415010.5A patent/HRP950253B1/en not_active IP Right Cessation
- 1995-04-25 RU RU95106499A patent/RU2127409C1/en active
- 1995-04-26 HU HU9501186A patent/HU218435B/en not_active IP Right Cessation
- 1995-04-26 RO RO95-00807A patent/RO117983B1/en unknown
- 1995-04-27 TR TR00482/95A patent/TR28909A/en unknown
- 1995-04-28 UA UA95048378A patent/UA26243C2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE4415010A1 (en) | 1995-11-02 |
| AU1479095A (en) | 1995-11-16 |
| DE59500281D1 (en) | 1997-07-10 |
| RO117983B1 (en) | 2002-11-29 |
| ES2103140T3 (en) | 1997-08-16 |
| FI951854A (en) | 1995-10-30 |
| HUT71978A (en) | 1996-02-28 |
| SK24295A3 (en) | 1995-12-06 |
| HRP950253B1 (en) | 1998-08-31 |
| TR28909A (en) | 1997-08-06 |
| SK281907B6 (en) | 2001-09-11 |
| CZ75995A3 (en) | 1995-12-13 |
| HRP950253A2 (en) | 1997-02-28 |
| CN1078505C (en) | 2002-01-30 |
| RU95106499A (en) | 1997-03-20 |
| CZ289639B6 (en) | 2002-03-13 |
| EP0679855A1 (en) | 1995-11-02 |
| DK0679855T3 (en) | 1998-01-05 |
| ATE154122T1 (en) | 1997-06-15 |
| HU9501186D0 (en) | 1995-06-28 |
| YU12895A (en) | 1997-09-30 |
| RU2127409C1 (en) | 1999-03-10 |
| KR950033407A (en) | 1995-12-26 |
| AU683530B2 (en) | 1997-11-13 |
| PL178157B1 (en) | 2000-03-31 |
| PL308068A1 (en) | 1995-10-30 |
| ZA951862B (en) | 1995-12-11 |
| JPH07301498A (en) | 1995-11-14 |
| HU218435B (en) | 2000-08-28 |
| FI951854A0 (en) | 1995-04-19 |
| EP0679855B1 (en) | 1997-06-04 |
| UA26243C2 (en) | 1999-07-19 |
| SI0679855T1 (en) | 1998-02-28 |
| CN1115266A (en) | 1996-01-24 |
| YU48866B (en) | 2002-08-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |