EP0391038B1 - Soot blower - Google Patents
Soot blower Download PDFInfo
- Publication number
- EP0391038B1 EP0391038B1 EP90102629A EP90102629A EP0391038B1 EP 0391038 B1 EP0391038 B1 EP 0391038B1 EP 90102629 A EP90102629 A EP 90102629A EP 90102629 A EP90102629 A EP 90102629A EP 0391038 B1 EP0391038 B1 EP 0391038B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- soot blower
- nozzles
- lance tube
- pressure
- valve
- 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.)
- Expired - Lifetime
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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
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- 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
Definitions
- the invention relates to a soot blower with the features of the preamble of claim 1.
- Sootblowers of this type are used for cleaning heating surfaces, for example in boilers and heat exchangers.
- the sootblowers are supplied with a pressurized gaseous medium, for example air or water vapor, which is expanded in the nozzles to the ambient pressure prevailing in the heat exchanger.
- the blast jets formed at the outlet from the nozzles then serve with their high kinetic energy to remove the undesirable deposits on the heat exchanger surfaces.
- the cleaning effect of a soot blower depends, among other things, on the nozzle size and the level of pressure with which the gaseous blowing medium flows into the nozzles. With higher pressure and / or larger nozzle diameter, a larger quantity flows through the nozzle per unit of time, and a higher cleaning effect is achieved.
- the pressure level of the blowing medium in the inlet to the nozzles is between 3 and 20 bar, while in the feed line to the soot blower there is generally a much higher pressure, for example 40 to 60 bar.
- this pressure is reduced to the pressure required for cleaning by means of an adjustable throttle disk located in the sootblower valve.
- the blowing medium then flows from the soot blower valve through other, structurally determined components, such as the inner and lance pipes, to the nozzles.
- Sootblowers are known (GB-A-2 094 433, US-A-3 216 046) which are provided with turbulators.
- the turbulators are located in the lance tube near the nozzles. Their job is to create a turbulent flow around the To improve heat transfer between the lance tube and the blowing medium, so that the operating temperature of the lance tube can be reduced.
- the turbulators inevitably generate a pressure loss.
- the invention has for its object to design the generic soot blower so that the approved blowing medium mass flow is increased without increasing the pressure drop and noise or that the pressure loss and noise can be reduced with the same mass flow.
- the invention makes use of the fact that a certain amount of gas flows at higher pressure due to the lower specific volume at a lower speed through a hollow body of constant cross section.
- the specific volume of many gases is inversely proportional to the pressure. For example, if the speed in a pipeline at 10 bar is 200 m / s, it will drop to about 100 m / s at 20 bar under otherwise identical conditions.
- the blowing medium in a soot blower is guided at a higher pressure as close as possible to the nozzles, the flow velocity is reduced accordingly and / or a larger amount can flow through. Since the pressure losses caused in a system depend essentially on the flow velocity, the pressure loss caused in the essential components of the soot blower is reduced if the pressure reduction is deliberately placed in the vicinity of the nozzles.
- the throttle device which itself is also a sound source, can be moved into the boiler or the heat exchanger in the arrangement according to the invention.
- the soot blower shown has a lance tube 1 which is provided with nozzles 2 at its front end.
- the lance tube 1 is connected to a gear carriage 4 driven by a motor 3, which can be moved together with the lance tube 1 on a stationary mounting rail 5.
- the motor 3 can also set the lance tube 1 in a rotational movement, so that the nozzles 2 perform a helical movement in this case.
- the end points of the travel path of the lance tube 1 are each determined by a fixed limit switch.
- the lance tube 1 can be moved through an inlet opening into a heat exchanger or a boiler, the wall of which is indicated by a wall tube 6.
- the inlet opening is surrounded by a wall box 7 for sealing against the outside atmosphere.
- the lance tube 1 with the nozzles 2 is located inside the wall box 7.
- the displaceable lance tube 1 surrounds a stationary inner tube 8, the rear end of which is provided with a connection for a blowing medium, for example steam or air.
- a blowing medium for example steam or air.
- the amount of the blowing medium is regulated via a soot blower valve 9 arranged on the soot blower.
- the soot blower valve 9 shown in more detail in FIG. 3 consists of a housing 10 with an inlet 11, an outlet 12 and a valve seat 13. Inside the housing 10 is a Valve spindle 14 is axially adjustable, which carries at its lower end a shut-off cone 15 which interacts with the valve seat 13. Downstream of the valve seat 13, a throttle disk 16 is fastened on the valve spindle 14 so that it can be distributed and locked. In conventional sootblowers, this throttle disk 16 is used to reduce the pressure of the blowing medium at the inlet into the sootblower valve 9 to the desired blowing pressure upstream of the nozzles 2. In connection with the design described below, the throttle disc 16 is used for fine adjustment of the pressure.
- a throttle device is arranged in the vicinity of the nozzles 2 within the lance tube 1.
- the part of the lance tube 1 which receives the nozzles 2 and the throttle device is located within the heat exchanger.
- the throttle device preferably consists of an aperture 17 which is firmly inserted into the lance tube 1 by welding. The blowing medium flowing through the lance tube 1 at full inlet pressure is expanded to the desired blowing pressure only immediately before entering the nozzles.
- a pressure measuring device is connected to the soot blower or is permanently installed.
- the measuring line 18 is laid on the outside of the lance tube 1.
- the lance tube 1 and the measuring line 18 are surrounded by a cladding tube 20 so that the inlet opening in the wall of the heat exchanger can be sealed.
- the manometer 19 is held at such a point on the lance tube 1 that the manometer 19 remains in the operating position of the soot blower with the lance tube retracted far into the heat exchanger outside the heat exchanger (position 19 'in FIG. 1) and can be read there .
- the sootblowers can be used to clean Denox catalysts.
- steam is used as a blowing medium with a temperature of 320 degrees C and a pressure of 18 bar.
- the blowing pressure in front of the nozzles 2 should be 2 bar and the amount of steam 1.6 kg / s.
- table 1 the values are entered which result when the sootblower is designed according to the prior art with a pressure reduction in the sootblower valve and, according to the invention, with a pressure reduction directly upstream of the nozzles 2. It can be seen that the speed of the blowing medium in the inner tube 8 can be reduced from 380 to 60 m / s and the sound power level from 120 to 75 dB (A) by the soot blower according to the invention.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
Abstract
Description
Die Erfindung betrifft einen Rußbläser mit den Merkmalen des Oberbegriffes des Anspruches 1.The invention relates to a soot blower with the features of the preamble of
Ein derartiger Rußbläser ist aus der US-A-2 486 585 bekannt.Such a sootblower is known from US-A-2 486 585.
Derartige Rußbläser werden zum Reinigen von Heizflächen zum Beispiel in Kesseln und Wärmetauschern eingesetzt. Den Rußbläsern wird ein unter Druck stehendes gasförmiges Medium, zum Beispiel Luft oder Wasserdampf, zugeführt, das in den Düsen auf den im Wärmetauscher herrschenden Umgebungsdruck entspannt wird. Die sich am Austritt aus den Düsen bildenden Blasstrahlen dienen dann mit ihrer hohen kinetischen Energie zum Entfernen der unerwünschten Beläge auf den Wärmetauscherflächen.Sootblowers of this type are used for cleaning heating surfaces, for example in boilers and heat exchangers. The sootblowers are supplied with a pressurized gaseous medium, for example air or water vapor, which is expanded in the nozzles to the ambient pressure prevailing in the heat exchanger. The blast jets formed at the outlet from the nozzles then serve with their high kinetic energy to remove the undesirable deposits on the heat exchanger surfaces.
Die Reinigungswirkung eines Rußbläsers ist unter anderem von der Düsengröße und von der Höhe des Druckes abhängig, mit dem das gasförmige Blasmedium in die Düsen einströmt. Bei höherem Druck und/oder größerem Düsendurchmesser strömt eine größere Menge pro Zeiteinheit durch die Düse, und ein höherer Reinigungseffekt wird erzielt.The cleaning effect of a soot blower depends, among other things, on the nozzle size and the level of pressure with which the gaseous blowing medium flows into the nozzles. With higher pressure and / or larger nozzle diameter, a larger quantity flows through the nozzle per unit of time, and a higher cleaning effect is achieved.
Üblicherweise beträgt das Druckniveau des Blasmediums im Eintritt in die Düsen zwischen 3 und 20 bar, während in der Zuführungsleitung zu dem Rußbläser in der Regel ein wesentlich höherer Druck herrscht, zum Beispiel 40 bis 60 bar. In den bekannten Rußbläsern (US-A-2 486 585) wird dieser Druck mittels einer im Rußbläserventil befindlichen, verstellbaren Drosselscheibe auf den zur Reinigung notwendigen Druck reduziert. Von dem Rußbläserventil strömt das Blasmedium dann durch andere, konstruktiv bedingte Bauteile wie zum Beispiel Innen- und Lanzenrohr den Düsen zu.Typically, the pressure level of the blowing medium in the inlet to the nozzles is between 3 and 20 bar, while in the feed line to the soot blower there is generally a much higher pressure, for example 40 to 60 bar. In the known sootblowers (US-A-2 486 585) this pressure is reduced to the pressure required for cleaning by means of an adjustable throttle disk located in the sootblower valve. The blowing medium then flows from the soot blower valve through other, structurally determined components, such as the inner and lance pipes, to the nozzles.
Es sind Rußbläser bekannt (GB-A-2 094 433, US-A-3 216 046), die mit Turbulatoren versehen sind. Die Turbulatoren sind in dem Lanzenrohr in der Nähe der Düsen angeordnet. Sie haben die Aufgabe, eine turbulente Strömung herbeizuführen, um den Wärmeübergang zwischen dem Lanzenrohr und dem Blasmedium zu verbessern, so daß die Betriebstemperatur des Lanzenrohres gesenkt werden kann. Die Turbulatoren erzeugen zwangsläufig einen Druckverlust.Sootblowers are known (GB-A-2 094 433, US-A-3 216 046) which are provided with turbulators. The turbulators are located in the lance tube near the nozzles. Their job is to create a turbulent flow around the To improve heat transfer between the lance tube and the blowing medium, so that the operating temperature of the lance tube can be reduced. The turbulators inevitably generate a pressure loss.
Um eine möglichst gute Reinigungswirkung mit dem Rußbläser zu erzielen, muß eine möglichst große Menge des Blasmediums zu den Düsen strömen. Hierbei wirken sich jedoch die in den dem Rußbläserventil nachgeschalteten Strömungsteilen auftretenden hohen Geschwindigkeiten nachteilig aus, da diese zu hohen Druckverlusten und zu einer großen Geräuschentwicklung führen. Werden die zugelassenen Schallpegelwerte überschritten, so sind entweder aufwendige schallisolierende Verkleidungen erforderlich, oder es muß die Blasmediummenge pro Rußbläser reduziert werden, d. h. es müssen an einem Kessel oder Wärmetauscher mehr Rußbläser installiert werden. Beide Wege erhöhen die Kosten der Reinigungsanlage beträchtlich.In order to achieve the best possible cleaning effect with the soot blower, the largest possible amount of the blowing medium must flow to the nozzles. Here, however, the high speeds occurring in the flow parts downstream of the soot blower valve have a disadvantageous effect, since they lead to high pressure losses and to a large amount of noise. If the permitted sound level values are exceeded, then either expensive soundproofing cladding is required, or it must Blowing medium quantity per soot blower can be reduced, ie more soot blowers must be installed on a boiler or heat exchanger. Both ways increase the cost of the cleaning system considerably.
Der Erfindung liegt die Aufgabe zugrunde, den gattungsgemäßen Rußbläser so zu gestalten, daß der zugelassene Blasmedium-Massenstrom ohne Erhöhung des Druckverlustes und der Geräuschentwicklung gesteigert oder daß bei gleichem Massenstrom der Druckverlust und die Geräuschentwicklung gesenkt werden können.The invention has for its object to design the generic soot blower so that the approved blowing medium mass flow is increased without increasing the pressure drop and noise or that the pressure loss and noise can be reduced with the same mass flow.
Diese Aufgabe wird bei einem gattungsgemäßen Rußbläser erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruches 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.This object is achieved in a generic soot blower according to the invention by the characterizing features of
Bei der Erfindung wird ausgenutzt, daß eine bestimmte Gasmenge bei höherem Druck infolge des niedrigeren spezifischen Volumens mit einer geringeren Geschwindigkeit durch einen Hohlkörper konstanten Querschnittes strömt. Näherungsweise verhält sich das spezifische Volumen vieler Gase umgekehrt proportional dem Druck. Beträgt zum Beispiel die Geschwindigkeit in einer Rohrleitung bei 10 bar 200 m/s, so sinkt sie bei sonst gleichen Bedingungen bei 20 bar auf größenordnungsmäßig 100 m/s. Wird somit in einem Rußbläser das Blasmedium mit höherem Druck bis möglichst nahe an die Düsen geführt, so reduziert sich die Strömungsgeschwindigkeit entsprechend, und/oder es kann eine größere Menge durchströmen. Da die in einem System verursachten Druckverluste wesentlich von der Strömungsgeschwindigkeit abhängen, vermindert sich der in den wesentlichen Bauteilen des Rußbläsers verursachte Druckverlust, wenn die Druckreduzierung bewußt in die Nähe der Düsen verlegt wird.The invention makes use of the fact that a certain amount of gas flows at higher pressure due to the lower specific volume at a lower speed through a hollow body of constant cross section. Approximately, the specific volume of many gases is inversely proportional to the pressure. For example, if the speed in a pipeline at 10 bar is 200 m / s, it will drop to about 100 m / s at 20 bar under otherwise identical conditions. Thus, if the blowing medium in a soot blower is guided at a higher pressure as close as possible to the nozzles, the flow velocity is reduced accordingly and / or a larger amount can flow through. Since the pressure losses caused in a system depend essentially on the flow velocity, the pressure loss caused in the essential components of the soot blower is reduced if the pressure reduction is deliberately placed in the vicinity of the nozzles.
Infolge der geringeren Geschwindigkeiten entfällt häufig die sonst erforderliche Schallisolierung des Rußbläserantriebsteiles. Als zusätzlicher Effekt ist hierzu nützlich, daß die Drosseleinrichtung, die selbst auch eine Schallquelle ist, bei der erfindungsgemäßen Anordnung in den Kessel oder den Wärmetauscher verlegt werden kann. Die dort entwickelten Geräusche dringen infolge der ohnehin vorhandenen Außenisolierung ohne zusätzliche Schallisolierung des außenliegenden Rußbläserteiles kaum nach außen.Due to the lower speeds, the otherwise required sound insulation of the soot blower drive part is omitted. As an additional effect, it is useful for this that the throttle device, which itself is also a sound source, can be moved into the boiler or the heat exchanger in the arrangement according to the invention. The noises developed there penetrate due to the already existing External insulation without additional sound insulation of the external soot blower part hardly to the outside.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen:
- Fig. 1 die Seitenansicht eines Rußbläsers,
- Fig. 2 den Längsschnitt durch einen Rußbläser im Detail und
- Fig. 3 den Längsschnitt durch ein Rußbläserventil.
- 1 is a side view of a soot blower,
- Fig. 2 shows the longitudinal section through a soot blower in detail and
- Fig. 3 shows the longitudinal section through a soot blower valve.
Der dargestellte Rußbläser weist ein Lanzenrohr 1 auf, das an seinem vorderen Ende mit Düsen 2 versehen ist. Das Lanzenrohr 1 ist mit einem von einem Motor 3 angetriebenen Getriebewagen 4 verbunden, der zusammen mit dem Lanzenrohr 1 auf einer ortsfesten Tragschiene 5 verfahrbar ist. Der Motor 3 kann auch das Lanzenrohr 1 zusätzlich in eine Drehbewegung versetzen, so daß die Düsen 2 in diesem Fall eine schraubenlinienförmige Bewegung ausführen. Die Endpunkte des Fahrweges des Lanzenrohres 1 sind durch je einen ortsfesten Endschalter bestimmt.The soot blower shown has a
Das Lanzenrohr 1 ist durch eine Eintrittsöffnung in einen Wärmetauscher oder einen Kessel einfahrbar, dessen Wandung durch ein Wandrohr 6 angedeutet ist. Die Eintrittsöffnung ist von einem Wandkasten 7 zur Abdichtung gegenüber der Außenatmosphäre umgeben. In der Ruhestellung befindet sich das Lanzenrohr 1 mit den Düsen 2 innerhalb des Wandkastens 7.The
Das verschiebbare Lanzenrohr 1 umgibt ein ortsfestes Innenrohr 8, dessen hinteres Ende mit einem Anschluß für ein Blasmedium, zum Beispiel Dampf oder Luft, versehen ist. Die Menge des Blasmediums wird über ein auf den Rußbläser angeordnetes Rußbläserventil 9 geregelt.The
Das in Fig. 3 näher dargestellte, an sich bekannte Rußbläserventil 9 besteht aus einem Gehäuse 10 mit einem Eingang 11, einem Ausgang 12 und einem Ventilsitz 13. Innerhalb des Gehäuses 10 ist eine Ventilspindel 14 axial verstellbar, die an ihrem unteren Ende einen mit dem Ventilsitz 13 zusammenwirkenden Absperrkegel 15 trägt. Stromabwärts des Ventilsitzes 13 ist auf der Ventilspindel 14 versteil- und arretierbar eine Drosselscheibe 16 befestigt. Bei herkömmlichen Rußbläsern dient diese Drosselscheibe 16 dazu, den Druck des Blasmediums am Eintritt in das Rußbläserventil 9 auf den gewünschten Blasdruck vor den Düsen 2 zu reduzieren. In Verbindung mit der nachfolgend beschriebenen Gestaltung wird die Drosselscheibe 16 für eine Feineinstellung des Druckes verwendet.The
Innerhalb des Lanzenrohres 1 ist in der Nähe der Düsen 2 eine Drosseleinrichtung angeordnet. Im Betriebszustand des Rußbläsers befindet sich der die Düsen 2 und die Drosseleinrichtung aufnehmende Teil des Lanzenrohres 1 innerhalb des Wärmetauschers. Die Drosseleinrichtung besteht vorzugsweise aus einer Blende 17, die in das Lanzenrohr 1 durch Verschweißen fest eingesetzt ist. Das das Lanzenrohr 1 mit vollem Eingangsdruck durchströmende Blasmedium wird erst unmittelbar vor dem Eintritt in die Düsen auf den gewünschten Blasdruck entspannt.A throttle device is arranged in the vicinity of the
Um den sich stromab der Blende 17 einstellenden Druck des Blasmediums zu kontrollieren, ist eine Druckmeßeinrichtung an dem Rußbläser angeschlosen oder bleibend installiert. Zu diesem Zweck mündet stromab der Blende 17 in das Lanzenrohr 1 eine Meßleitung 18 ein, die zu einem Manometer 19 geführt ist. Bei Rußbläsern mit einem nicht rotierenden Lanzenrohr 1 ist die Meßleitung 18 an der Außenseite des Lanzenrohres 1 verlegt. Das Lanzenrohr 1 und die Meßleitung 18 sind von einem Hüllrohr 20 umgeben, damit die Eintrittsöffnung in der Wand des Wärmetauschers abgedichtet werden kann. Das Manometer 19 ist an einer solchen Stelle an dem Lanzenrohr 1 gehalten, daß das Manometer 19 auch noch in der Betriebsstellung des Rußbläsers mit weit in den Wärmetauscher eingefahrenem Lanzenrohr außerhalb des Wärmetauschers verbleibt (Stellung 19′ in Fig. 1) und dort abgelesen werden kann.In order to control the pressure of the blowing medium downstream of the
Die Rußbläser können für die Reinigung von Denox-Katalysatoren eingesetzt werden. Dazu wird als Blasmedium Wasserdampf mit einer Temperatur von 320 Grad C und einem Druck von 18 bar verwendet. Der Blasdruck vor den Düsen 2 soll 2 bar und die Dampfmenge 1,6 kg/s betragen. In der Tafel 1 sind die Werte eingetragen, die sich bei einer Ausbildung des Rußbläsers nach dem Stand der Technik mit einer Druckreduzierung im Rußbläserventil und gemäß der Erfindung mit einer Druckreduzierung unmittelbar vor den Düsen 2 ergeben. Es zeigt sich, daß durch die erfindungsgemäße Ausbildung des Rußbläsers die Geschwindigkeit des Blasmediums in dem Innenrohr 8 von 380 auf 60 m/s und der Schalleistungspegel von 120 auf 75 dB (A) gesenkt werden kann.
Claims (4)
- Soot blower with a lance tube (1), which is provided at its forward end with nozzles (2) and the rearward end of which is connected by way of a soot blower valve (9) with a feed for a blast medium, wherein a throttle device for setting of the blasting pressure is provided within the flow path of the blast medium, characterised thereby that the throttle device is arranged within the lance tube (1) in the proximity of the nozzles (2) and consists of an orifice plate.
- Soot blower according to claim 1, characterised thereby that a measuring duct (18), which is connected with a manometer (19), opens into the lance tube (1) downstream of the throttle device.
- Soot blower according to claim 2, characterised thereby that the measuring duct (18) and the lance tube (1) are surrounded by a jacket encasing tube (20).
- Soot blower according to one of the claims 1 to 3, characterised thereby that the soot blower valve (9) is provided with a pressure adjusting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT90102629T ATE83852T1 (en) | 1989-04-01 | 1990-02-10 | SOOTBLOWERS. |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3910616 | 1989-04-01 | ||
| DE3910616A DE3910616A1 (en) | 1989-04-01 | 1989-04-01 | SUSSBLAESER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0391038A1 EP0391038A1 (en) | 1990-10-10 |
| EP0391038B1 true EP0391038B1 (en) | 1992-12-23 |
Family
ID=6377650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90102629A Expired - Lifetime EP0391038B1 (en) | 1989-04-01 | 1990-02-10 | Soot blower |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5040262A (en) |
| EP (1) | EP0391038B1 (en) |
| JP (1) | JP2969362B2 (en) |
| AT (1) | ATE83852T1 (en) |
| DE (2) | DE3910616A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8157921B2 (en) | 2003-12-05 | 2012-04-17 | Clyde Bergemann Gmbh | Apparatus for cleaning heat exchanging surfaces, assembly having a heat installation and an apparatus for cleaning heat exchanging surfaces of the heat installation and method for carrying out relative movement between a supply line and a heating installation |
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| US5353996A (en) * | 1993-02-18 | 1994-10-11 | Boise Cascade Corporation | Sootblower frame and drive assembly |
| US5355844A (en) * | 1993-05-26 | 1994-10-18 | Kendrick William E | System for slag removal and the like |
| US5605117A (en) * | 1994-11-21 | 1997-02-25 | The Babcock & Wilcox Company | Articulating sootblower |
| DE19510558A1 (en) * | 1995-03-23 | 1996-09-26 | Inro Maschinentechnik Gmbh | Cleaner for heat exchanger elements |
| US5675863A (en) * | 1995-08-28 | 1997-10-14 | Combustion Engineering, Inc. | Full coverage sootblower |
| US5765510A (en) * | 1996-04-26 | 1998-06-16 | Dltk, Inc. | Retractable, sealed sootblower for high pressure, high temperature applications |
| DE19647868C1 (en) | 1996-11-19 | 1998-02-26 | Hans Bergemann | Soot blower with lance-type blowing tube |
| US7132017B2 (en) * | 2002-08-21 | 2006-11-07 | Laurence George M | Low-pressure cleaning system using high velocity high volume air |
| US20050217060A1 (en) * | 2004-03-30 | 2005-10-06 | Diamond Power International, Inc. | Sootblower with single traveling limit switch utilizing state logic control |
| DE102004060884A1 (en) | 2004-12-17 | 2006-06-29 | Clyde Bergemann Gmbh | Method for removing of combustion residues from wall of chamber carrying combustion gases involves contacting of combustion residues with first cleaning medium, and contacting of pre-treated residues with second cleaning medium |
| US20070045584A1 (en) * | 2005-08-31 | 2007-03-01 | Diamond Power International, Inc. | Low loss poppet valve for a cleaning device and a method of delivering a cleaning fluid therewith |
| US8176883B2 (en) * | 2009-02-26 | 2012-05-15 | Diamond Power International, Inc. | Retractable articulating robotic sootblower |
| JP6111269B2 (en) | 2012-12-19 | 2017-04-05 | Ｍｈｉプラント株式会社 | Soup system with pressure adjustment mechanism |
| US9664463B2 (en) | 2013-11-27 | 2017-05-30 | Scott P. Burfeind | Coil cleaning system |
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| DE2631180C2 (en) * | 1976-07-10 | 1981-11-26 | Bremer Vulkan Schiffbau Und Maschinenfabrik, 2820 Bremen | Steam generator |
| US4276856A (en) * | 1978-12-28 | 1981-07-07 | Westinghouse Electric Corp. | Steam generator sludge lancing method |
| US4359800A (en) * | 1981-03-05 | 1982-11-23 | The Babcock & Wilcox Company | Sootblower feed and lance tube structure with improved turbulizer system |
| DE3343992A1 (en) * | 1983-12-06 | 1985-06-20 | Bergemann Gmbh, 4230 Wesel | SUSSBLAESER |
| US4635314A (en) * | 1985-04-15 | 1987-01-13 | Itt Corporation | Arrangement for removing glass soot from an exhaust tube during optical preform fabrication |
| US4905900A (en) * | 1986-08-29 | 1990-03-06 | Anco Engineers, Inc. | Water cannon apparatus for cleaning a tube bundle heat exchanger, boiler, condenser, or the like |
| US4813384A (en) * | 1988-04-18 | 1989-03-21 | White Consolidated Industries, Inc. | Soot blower lance with ceramic coating |
-
1989
- 1989-04-01 DE DE3910616A patent/DE3910616A1/en not_active Withdrawn
-
1990
- 1990-02-10 EP EP90102629A patent/EP0391038B1/en not_active Expired - Lifetime
- 1990-02-10 AT AT90102629T patent/ATE83852T1/en not_active IP Right Cessation
- 1990-02-10 DE DE9090102629T patent/DE59000623D1/en not_active Expired - Fee Related
- 1990-03-26 JP JP2076555A patent/JP2969362B2/en not_active Expired - Fee Related
- 1990-03-30 US US07/502,548 patent/US5040262A/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8157921B2 (en) | 2003-12-05 | 2012-04-17 | Clyde Bergemann Gmbh | Apparatus for cleaning heat exchanging surfaces, assembly having a heat installation and an apparatus for cleaning heat exchanging surfaces of the heat installation and method for carrying out relative movement between a supply line and a heating installation |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0391038A1 (en) | 1990-10-10 |
| JP2969362B2 (en) | 1999-11-02 |
| DE59000623D1 (en) | 1993-02-04 |
| US5040262A (en) | 1991-08-20 |
| DE3910616A1 (en) | 1990-10-04 |
| JPH02287009A (en) | 1990-11-27 |
| ATE83852T1 (en) | 1993-01-15 |
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