EP4115133A1 - Vorrichtung zur teilautomatisierten reinigung von rohrbündelwärmetauschern, rohrbündelwärmetauscherreinigungsanordnung und strahlverfahren zum reinigen einer innenrohrfläche eines rohrs eines rohrbündelwärmetauschers - Google Patents
Vorrichtung zur teilautomatisierten reinigung von rohrbündelwärmetauschern, rohrbündelwärmetauscherreinigungsanordnung und strahlverfahren zum reinigen einer innenrohrfläche eines rohrs eines rohrbündelwärmetauschersInfo
- Publication number
- EP4115133A1 EP4115133A1 EP20717080.4A EP20717080A EP4115133A1 EP 4115133 A1 EP4115133 A1 EP 4115133A1 EP 20717080 A EP20717080 A EP 20717080A EP 4115133 A1 EP4115133 A1 EP 4115133A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- bundle heat
- tube bundle
- blasting
- tube
- 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
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
-
- 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
- F28G15/02—Supports for cleaning appliances, e.g. frames
-
- 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
Definitions
- the invention relates to a device for the partially automated cleaning of tube bundle heat exchangers with a plurality of tubes.
- the invention further comprises a tube bundle heat exchanger cleaning arrangement and a jet method for cleaning an inner tube surface of a tube of a tube bundle heat exchanger.
- Tubes of tube bundle heat exchangers mostly have an inside diameter in the range from 6 mm to 60 mm and can consist of different materials such as steel, stainless steel, copper, bronze, titanium or graphite.
- high pressure water with a pressure of 2,800 bar or more is used to clean the inner pipe.
- the pressure must be matched to the stability of the pipes.
- a high pressure jet nozzle is usually by means of lances or Hoses passed through the pipe. With small inner pipe diameters, large pressure losses can occur, which limit the cleaning effect.
- a stationary arrangement for cleaning the inside of a pipe is known from the post-published German patent application 102018 130 100.6, in which a deflecting body held by a retaining cable is inserted into the pipe and a gaseous blasting medium with an added blasting agent is guided through the pipe via a blasting adapter.
- the object of the present invention is to provide a device for cleaning the inner tubes of a plurality of tubes of a tube bundle heat exchanger as well as a tube bundle heat exchanger cleaning arrangement and a blasting method.
- the device for the partially automated cleaning of tubes of a tube bundle heat exchanger comprises at least one guide rail extending longitudinally in a transverse direction, at least one slide that can be moved along the guide rail in the transverse direction, as well as a jet device and a fastening device for fixing the guide rail to the tube bundle heat exchanger.
- the blasting device provides a connection for a gaseous and / or liquid blasting medium and a blasting medium, one for frontal contact with a tube of the tube bundle heat exchanger formed beam adapter, a controllable pressure module, which is assigned to the beam adapter so that the beam adapter can be pressed against the pipe, a deflecting body that can be inserted into the pipe for the blasting agent and the blasting medium, a resistant retaining cable that holds the deflecting body holds and is also suitable for the use of abrasive blasting media, and a feed module for the holding cable.
- the jet adapter and / or the deflecting body of the jet device can be moved in the transverse direction with the slide.
- the particular advantage of the invention is that by providing the guide rail with the slide and the jet device fixed on the slide, the same can be positioned simply, quickly and precisely. This makes it possible to automatically clean and / or polish a large number of tubes of the tube bundle heat exchanger within a short period of time.
- the fastening device allows the device to be fixed relative to the tube bundle heat exchanger in such a way that an exact position assignment is guaranteed.
- the fastening device provides at least one clamping module with adjustable clamping jaws for clamping the guide rail to the tube bundle heat exchanger.
- the guide rail is fixed relative to the tube bundle heat exchanger in that the clamping jaws are clamped against an inner tube surface of a tube of the tube bundle heat exchanger which is used to fasten the device.
- the exact position assignment of the device to the tube bundle heat exchanger can be achieved in a particularly simple manner, with the result that the effort for positioning the device relative to the pipe to be cleaned is low and the cleaning progress is high.
- the pressing module provides a drive unit and in particular a spindle drive or a pneumatically actuated cylinder for pressing the jet adapter against the pipe.
- the pressing process can advantageously be automated and therefore carried out quickly. Manual operation is not required.
- the contact pressure can be selected or adjusted and monitored as required.
- the feed module provides a storage roll for the retaining cable.
- the supply roll can be assigned a drive for feeding in the retaining cable and consequently for changing the position of the deflecting body in the pipe.
- the feed module can provide a roller guide for feeding and / or frictional clamping of the retaining cable.
- a roller of the roller guide can be driven to feed the retaining cable and to determine or set the position of the deflecting body in the pipe to be cleaned.
- a tube bundle heat exchanger cleaning arrangement comprises a device according to the invention and a tube bundle heat exchanger with a plurality of horizontally and vertically adjacent tubes.
- the guide rail of the device extends horizontally and / or vertically and in any case individual elements of the fastening device protrude at least in sections into at least one tube of the tube bundle heat exchanger which is used to fasten the device. In this way, the device is attached to the tube bundle heat exchanger and at the same time aligned relative to it.
- the particular advantage of the invention is that the tubes of a tube bundle heat exchanger can be cleaned quickly and reliably by means of the device according to the invention.
- Tube bundle heat exchangers are aligned with one another with the result that horizontally and / or vertically adjacent tubes of the tube bundle heat exchanger can be cleaned sequentially without the need for repositioning or redefinition of the device according to the invention.
- the fastening device provides at least one clamping module with adjustable clamping jaws, the clamping jaws against an inner tubular surface of the fastening Device serving pipe are braced.
- the tubes of the tube bundle heat exchanger are elongated in a longitudinal direction and oriented orthogonally to the transverse direction of the guide rail of the device according to the invention.
- Tube bundle heat exchanger cleaning arrangement has a holding device in front of the height-variable suspension of the device relative to the tube bundle heat exchanger.
- the holding device can have a balancer.
- the invention has the features of claim 10. Accordingly, according to the blasting method according to the invention for cleaning and / or polishing an inner pipe surface of a tube of a tube bundle heat exchanger, a gaseous and / or liquid blasting medium, to which a blasting agent is mixed, flows around a deflecting body introduced into the pipe to be cleaned, the deflecting body in relation to its cross-sectional shape is adapted to an inner pipe cross-section, but is dimensioned smaller than the inner pipe cross-section and a minimum annular gap of 0.75 mm to the inner pipe surface is formed through which the blasting medium flows with the blasting agent during cleaning.
- the deflecting body is guided through the pipe to be cleaned at a defined speed by means of a holding cable which is fed through a blast adapter that is pressed against the pipe to be cleaned and is used to feed the blasting medium mixed with the blasting medium.
- a minimum speed of the blasting medium is 12 m / s.
- a speed of the deflecting body is between 1 m / min and 18 m / min, depending on the requirements.
- the jet adapter and the deflecting body are held on a slide and the slide is guided displaceably along a guide rail which is elongated in a transverse direction and on which it is held.
- the particular advantage of the invention is that by means of the blasting method according to the invention, a large number of tubes can be used Shell and tube heat exchanger can be cleaned within a short time.
- the jet adapter and the deflecting body, which are part of a jet device, are guided sequentially to the pipes to be cleaned with the aid of the slide guided on the guide rail and positioned relative to the pipe to be cleaned in each case.
- the retaining cable is fed via a controllable drive.
- the speed at which the deflecting body is guided through the pipe to be cleaned can advantageously be set or selected variably and as required.
- the jet adapter is pressed at the end against the pipe to be cleaned by means of a drive unit.
- the drive unit provides, for example, a spindle drive or a pneumatically operated cylinder.
- the jet adapter can advantageously be pressed on in an automated manner.
- the slide with the jet adapter and the deflection body is first moved horizontally along a plurality of laterally adjacent tubes of a first row of tubes and then the vertical position of the guide rail with the slide held on it is readjusted Cleaning of horizontally adjacent pipes of a second row of pipes, which is provided above and / or below the first row of pipes to be cleaned.
- a holding device with a balancer for example, can be provided for horizontal adjustment.
- hard particles with a round or sharp-edged surface are used as blasting media.
- soft blasting media made of plastic or water-soluble substances or liquids such as water with and without additives, fat dissolvers such as paraffin and other soluble liquids.
- dry snow or dry ice can be used as a blasting agent to clean pipes made of plastic, graphite or fiberglass.
- the pressure of the blasting medium and / or the nature of the blasting agent can be adjusted and / or changed and / or selected and / or regulated as required to adjust the cleaning or polishing effect on an inner pipe surface of the pipe to be cleaned.
- Fig. 1 is a schematic diagram of a
- Tube bundle heat exchanger cleaning arrangement with a device for the partially automated cleaning of inner tube surfaces of a tube of a tube bundle heat exchanger.
- a tube bundle heat exchanger cleaning arrangement comprises, as essential components, a tube bundle heat exchanger 1 with a plurality of tubes 2 which are adjacent to one another and which extend in a longitudinal direction 3, a device 5 for cleaning the tubes 2 of the tube bundle heat exchanger 1 and a holding device, not shown, which supports the height-variable suspension of the device 5 relative to the tube bundle heat exchanger 1 is used.
- the tube bundle heat exchanger 1 provides a plurality of tubes 2 which are arranged in rows of tubes adjacent to one another and above and below one another.
- the device 5 is used for the partially automated cleaning of an inner pipe surface 4 of the pipes 2.
- the device 5 provides a guide rail 6 extending longitudinally in a transverse direction 7 and a fastening device with two clamping modules 9 held on the guide rail 6.
- the guide rail 6 extends horizontally.
- the clamping modules 9 protrude in sections into two tubes 2.2 of the tube bundle heat exchanger 1 which are used to fasten the device 5 to the tube bundle heat exchanger 1 Jaws 10 before.
- the clamping jaws 10 are adjustable and, in the assembled state, are braced against the inner tube surfaces 4 of the two tubes 2.2 of the tube bundle heat exchanger 1 which are used to fasten the device 5.
- the device 5 further provides a carriage 8 which is displaceable in the transverse direction 7 along the guide rail 6 and is held on the same.
- a jet device is provided on the slide 8 of the device 5.
- the jet device comprises a jet adapter 11 which can be pressed on the end face of a pipe 2.1 of the tube bundle heat exchanger 1 to be cleaned, a deflector 14 provided in the pipe 2.1 to be cleaned, and a retaining cable 15.
- the deflecting body 14 is provided on the retaining cable 15.
- the retaining cable 15 is guided via the jet adapter 11 into the pipe 2.1 to be cleaned.
- a feed module which provides a roller guide 16 with a driven roller 17, a pressure roller 18 and a roller drive 19 assigned to the driven roller 17, is used to supply the retaining cable 15.
- a cylinder 20 with a piston rod 21 is assigned to the pressure roller 18 of the roller guide 16.
- the retaining cable 15 is held in a non-positive manner between the pressure roller 18 and the driven roller 17.
- the driven roller 17 can be set in rotation via the roller drive 19 of the roller guide 16, so that the holding cable 15 is displaced in a longitudinal direction of the holding cable between the rollers 17, 18.
- the jet device To press the jet adapter 11 against the pipe 2.1 to be cleaned, the jet device provides a pressing module with a cylinder 12 and a piston rod 13.
- Two receptacles 22 are also provided on the carriage 8.
- the device 5 with the holding device (not shown) is via the receptacles 22 tied together.
- the holding device can for example provide a balancer. By providing the balancer, the device 5 can be displaced in a simple manner vertically, that is to say perpendicular to the longitudinal direction 3 of the tubes 2 of the tube bundle heat exchanger 1 and perpendicular to the transverse direction 7 of the guide rail 6.
- the device 5 is first fastened to the tube bundle heat exchanger 1 by means of the fastening device having the clamping modules 9.
- the clamping modules 9 By inserting the clamping modules 9 in sections with the clamping jaws 10 into the tubes 2.2 of the tube bundle heat exchanger 1 which are used to fasten the device 5, in addition to the fastening of the device 5 to the tube bundle heat exchanger 1, the device 5 is also precisely positioned relative to the tube bundle heat exchanger 1.
- the carriage 8 is positioned in front of the pipe 2.1 of the tube bundle heat exchanger 1 to be cleaned so that the deflecting body 14 is inserted into the pipe 2.1 to be cleaned and the jet adapter 11 can be pressed against the pipe 2.1 to be cleaned at the end by means of the pressure module.
- a gaseous or liquid blasting medium for example compressed air
- a blasting agent for example a plastic granulate
- the deflecting body 14 is guided in the pipe longitudinal direction 3 through the pipe 2.1. It is held by the holding cable 15 against the pressure of the blasting medium mixed with the blasting agent and moved forwards and / or backwards at a speed which, depending on the nature of the pipe 2.1, is in the range from 1 m / min to 18 m / min.
- the setting of the cleaning effect can be set or regulated via the pressure of the blasting medium and the nature or amount of the blasting agent.
- the jet adapter 11 is removed from the pipe 2.1 to be cleaned.
- the deflecting body 14 is also removed from the pipe 2.1 to be cleaned.
- the slide 8 is moved horizontally with the jet adapter 11 in the transverse direction 7 of the device 5 and positioned in front of the next pipe 2.
- the device 5 can be removed from the tube bundle heat exchanger 1.
- the clamping jaws 10 are loosened and removed from the pipe 2.2 serving to fasten the device 5.
- the device 5 is then moved vertically up to a second row of tubes. On the second row of tubes, the device 5 is newly fixed via the clamping jaws 10 of the clamping modules 9 and the cleaning process is repeated.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE2020/100142 WO2021175350A1 (de) | 2020-03-02 | 2020-03-02 | Vorrichtung zur teilautomatisierten reinigung von rohrbündelwärmetauschern, rohrbündelwärmetauscherreinigungsanordnung und strahlverfahren zum reinigen einer innenrohrfläche eines rohrs eines rohrbündelwärmetauschers |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP4115133A1 true EP4115133A1 (de) | 2023-01-11 |
| EP4115133B1 EP4115133B1 (de) | 2025-01-22 |
| EP4115133C0 EP4115133C0 (de) | 2025-01-22 |
Family
ID=70189630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20717080.4A Active EP4115133B1 (de) | 2020-03-02 | 2020-03-02 | Vorrichtung zur teilautomatisierten reinigung von rohrbündelwärmetauschern, rohrbündelwärmetauscherreinigungsanordnung und strahlverfahren zum reinigen einer innenrohrfläche eines rohrs eines rohrbündelwärmetauschers |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4115133B1 (de) |
| DE (1) | DE112020006840A5 (de) |
| WO (1) | WO2021175350A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118565225B (zh) * | 2024-07-30 | 2024-10-01 | 山西绿源碳索科技有限公司 | 一种节能加热炉的烟气余热回收系统及方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE211957T1 (de) | 1997-12-05 | 2002-02-15 | Kipp Jens Werner | Strahlverfahren zum reinigen von rohren |
| DE10120338B4 (de) * | 2001-04-26 | 2022-01-13 | Clyde Bergemann Gmbh | Vorrichtung zur Online-Kesselreinigung von Abfallverbrennungsanlagen |
| DE20201322U1 (de) * | 2002-01-16 | 2003-05-28 | Kipp, Jens Werner, 33659 Bielefeld | Strahlvorrichtung zur Reinigung von Rohraußenflächen in Rohrbündeln (z.B. in Abhitzekesseln) |
| AU2015292711B2 (en) * | 2014-07-24 | 2019-08-15 | Stoneage, Inc. | Flexible tube cleaning lance positioner frame apparatus |
| DE102015218114B4 (de) * | 2015-09-21 | 2018-10-18 | Lobbe Industrieservice Gmbh & Co Kg | Verfahren und Vorrichtung zum Reinigen von Rohrbündeln |
| US10502509B2 (en) * | 2016-05-03 | 2019-12-10 | Peinemann Equipment B.V. | Method and apparatus for cleaning tubes in a rotary path |
-
2020
- 2020-03-02 WO PCT/DE2020/100142 patent/WO2021175350A1/de not_active Ceased
- 2020-03-02 DE DE112020006840.4T patent/DE112020006840A5/de not_active Withdrawn
- 2020-03-02 EP EP20717080.4A patent/EP4115133B1/de active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP4115133B1 (de) | 2025-01-22 |
| WO2021175350A1 (de) | 2021-09-10 |
| DE112020006840A5 (de) | 2023-06-01 |
| EP4115133C0 (de) | 2025-01-22 |
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