DE4121815A1 - Heat-exchanger for dust-laden exhaust gas - has top part of tube bundle outside exhaust passage in gas-tight chamber - Google Patents

Heat-exchanger for dust-laden exhaust gas - has top part of tube bundle outside exhaust passage in gas-tight chamber

Info

Publication number
DE4121815A1
DE4121815A1 DE19914121815 DE4121815A DE4121815A1 DE 4121815 A1 DE4121815 A1 DE 4121815A1 DE 19914121815 DE19914121815 DE 19914121815 DE 4121815 A DE4121815 A DE 4121815A DE 4121815 A1 DE4121815 A1 DE 4121815A1
Authority
DE
Germany
Prior art keywords
dust
gas
exhaust gas
bundle
top part
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
DE19914121815
Other languages
German (de)
Other versions
DE4121815C2 (en
Inventor
Herbert Deisenroth
Jiri Dipl Ing Jekerle
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.)
SHG-SCHACK GMBH, 34123 KASSEL, DE
Original Assignee
Schmidtsche Heissdampf GmbH
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 Schmidtsche Heissdampf GmbH filed Critical Schmidtsche Heissdampf GmbH
Priority to DE19914121815 priority Critical patent/DE4121815C2/en
Priority to PL29508092A priority patent/PL169573B1/en
Priority to ES9201358A priority patent/ES2060511B1/en
Priority to AU19323/92A priority patent/AU651702B2/en
Publication of DE4121815A1 publication Critical patent/DE4121815A1/en
Application granted granted Critical
Publication of DE4121815C2 publication Critical patent/DE4121815C2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/02—Cleaning furnace tubes; Cleaning flues or chimneys
    • F23J3/023—Cleaning furnace tubes; Cleaning flues or chimneys cleaning the fireside of watertubes in boilers
    • 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
    • F28G7/00—Cleaning by vibration or pressure waves

Abstract

The heat-exchanger is for use with dust-laden exhaust gas, having a horizontal exhaust passage (1), in which is a bundle (2) of zigzagging tubes at right angles to the gas flow direction and equipped with a vibratory cleaning mechanism. The top part of the bundle is outside the exhaust passage, and extends fore between 20% and 50% of the length of the remainder inside it. The top part is inclosed in a separate gastight chamber (4) connected to the passage, in which the cleaning mechanism (5) and the suspension devices (9) for the bundle are accommodated. ADVANTAGE - No deposits of dust on horizontal vibrator tubes.

Description

Die Erfindung betrifft einen Wärmetauscher, der von staubhaltigem Abgas durchströmt ist, bestehend aus dem im wesentlichen waagrechten Abgaskanal mit darin angeordneten Rohrschlangenbündeln, die quer zur Strömungsrich­ tung des Abgases angeordnet und mit Rüttelreinigungsvorrichtungen ver­ sehen sind.The invention relates to a heat exchanger, the dust-containing exhaust gas is flowed through, consisting of the essentially horizontal exhaust duct with bundles of coils arranged in it, which are transverse to the flow direction device of the exhaust gas arranged and ver with vibration cleaners are seen.

Derartige Anlagen sind unter anderem durch die DE-OS 24 11 133 bekannt­ geworden. Nachteilig ist jedoch bei dieser bekannten Anlage nach der DE-OS 24 11 133, daß die horizontal verlaufenden Rüttelrohre und Mit­ nehmer im mittleren Bereich der lotrechten Schlangenrohrbündel angeordnet sind, so daß beim Rüttelreinigungsvorgang die oberhalb der Rüttelebene gelösten Staubansätze beim Herabfallen auf den waagrecht angeordneten Rüttelrohren liegenbleiben und zur Verstopfung der freien Rohrgassen führen. Diese Verstopfungen können die Funktion der Rüttelreinigungsvor­ richtungen so beeinträchtigen, daß der Wärmetauscher bei sehr schwierigen Staubeigenschaften auch außer Betrieb gesetzt werden kann.Such systems are known, inter alia, from DE-OS 24 11 133 become. The disadvantage of this known system according to DE-OS 24 11 133 that the horizontally running vibrating tubes and with arranged in the central area of the vertical coil tube bundle are, so that during the vibration cleaning process the above the vibration level loosened dust deposits when falling on the horizontally arranged Vibrating tubes remain and block the free tube lanes to lead. These blockages can affect the function of the vibratory cleaning affect directions so that the heat exchanger in very difficult Dust properties can also be deactivated.

Aufgabe der Erfindung ist es, einen Wärmetauscher nach der eingangs be­ schriebenen Art zu schaffen, bei dem die genannten Nachteile vermieden werden.The object of the invention is to be a heat exchanger after the beginning to create the type in which the disadvantages mentioned avoided will.

Diese Aufgabe wird dadurch gelöst, daß der obere Bereich der Rohrschlan­ genbündel außerhalb des Abgaskanals angeordnet ist und etwa 20 bis 50% der Länge des im Abgaskanal vom abgasbeaufschlagten Bereich der Rohr­ schlangenbündel entspricht, wobei der obere Bereich der Rohrschlangen­ bündel von einer mit dem Abgaskanal verbundenen gasdicht getrennten Kam­ mer ummantelt ist, in dem die Rüttelreinigungsvorrichtungen und die Auf­ hängungen für die Rohrschlangenbündel angeordnet sind. This object is achieved in that the upper area of the pipe coil gene bundle is arranged outside the exhaust duct and about 20 to 50% the length of the area of the pipe in the exhaust duct from which the exhaust gas is applied corresponds to the bundle of snakes, the upper part of the coils bundle of a gas-tightly connected chamber connected to the exhaust duct is encased in which the vibrating cleaning devices and the on Hangings for the coil bundle are arranged.  

In weiterer Ausbildung der Erfindung ist die Abdichtung zwischen der Kammer und dem Abgaskanal aus gekühlten Rohrschlangen gebildet.In a further embodiment of the invention, the seal between the Chamber and the exhaust duct formed from cooled coils.

Durch die erfindungsgemäße Maßnahme, wobei die Rüttelschlangen und Mitnehmerteile der Rüttelreinigungsvorrichtung sowie die Aufhängung der Rohrschlangenbündel oberhalb und außerhalb des Abgasstromes liegen, kön­ nen die abgereinigten Staubschichten und Staubbrocken beim Herausfallen aus dem Rohrschlangenbündel nicht zu einer Verstopfung der freien Quer­ schnitte oder einer Beeinträchtigung der Funktion der Rüttelreinigungs­ vorrichtung führen. Dadurch kann ein störungsfreier Betrieb des Wärmetauschers gewährleistet werden.By the measure according to the invention, the vibrating lines and Driver parts of the vibrator cleaning device and the suspension of the Pipe coil bundles above and outside the exhaust gas flow can the cleaned dust layers and chunks of dust when falling out from the bundle of coils not to block the free cross cuts or an impairment of the function of the vibration cleaning lead device. Trouble-free operation of the Heat exchanger can be guaranteed.

Durch die Verwendung von gekühlten Rohrschlangen kann die Kammer, in der sich die Rüttelstangen befinden, von dem abgasdurchströmten Kanal so abgeschirmt werden, daß sowohl die Rüttelreinigungsanlage als auch die Aufhängung der Schlangenrohrbündel vor dem staubbeladenen Gas geschützt werden.Through the use of cooled coils, the chamber in which the vibrating rods are located in the channel through which the exhaust gas flows be shielded that both the vibration cleaning system and the Suspension of the coiled tube bundle protected from the dust-laden gas will.

Die Erfindung wird anhand der Beschreibung und der Zeichnung näher erläutert.The invention will become more apparent from the description and the drawing explained.

Es zeigt:It shows:

Fig. 1 Querschnitt durch den Abgaskanal gemäß Linie A-B Fig. 1 cross section through the exhaust duct along line AB

Fig. 2 Längsschnitt durch den Wärmetauscher. Fig. 2 longitudinal section through the heat exchanger.

Die mit hohem Staubgehalt beladenen Abgase durchströmen den Wärmetauscher, bestehend aus dem Abgaskanal 1 mit darin angeordneten hängenden Rohrschlangenbündeln 2 und der darüber angeordneten Rüttelreinigungsvor­ richtung 5 mit Rüttelrohren 6, dem Mitnehmer 1 und dem nicht dargestell­ ten Antrieb 8. The exhaust gases loaded with a high dust content flow through the heat exchanger, consisting of the exhaust duct 1 with hanging tube bundles 2 arranged therein and the above-arranged Rüttelreinigungsvor device 5 with vibrating tubes 6 , the driver 1 and the drive 8, not shown.

Die an den Tragrohren 12 aufgehängten Rohrschlangen 3 der Rohrschlangen­ bündel 2 werden von den waagrecht geführten Rüttelrohren 6 ausgelenkt und an den unteren Enden paarweise aneinander geschlagen und abgereinigt. Der anfallende Staub kann durch die nach unten freihängenden Rohrschlangen 3 der Rohrschlangenbündel 2 ohne Behinderung abgeleitet werden.The pipe coils 3 suspended from the support pipes 12 of the pipe coils bundle 2 are deflected by the horizontally guided vibrating pipes 6 and struck and cleaned in pairs at the lower ends. The resulting dust can be discharged through the downward hanging pipe coils 3 of the pipe coil bundle 2 without hindrance.

Die wassergekühlten Rohre 11 schirmen die Kammer 4 gegen das Eindringen von Abgas ab.The water-cooled pipes 11 shield the chamber 4 against the ingress of exhaust gas.

LegendeLegend

 1 Abgaskanal
 2 Rohrschlangenbündel
 3 Rohrschlange
 4 Kammer
 5 Rüttelreinigungsvorrichtung
 6 Rüttelrohre
 7 Mitnehmer
 8 Antrieb
 9 Aufhängung
10 Abdichtung
11 gekühlte Rohre
12 Tragrohre 1 exhaust duct
2 bundles of coils
3 pipe coil
4 chamber
5 vibrator cleaning device
6 vibrating tubes
7 drivers
8 drive
9 suspension
10 sealing
11 cooled pipes
12 support tubes

Claims (2)

1. Wärmetauscher, der von staubhaltigem Abgas durchströmt ist, bestehend aus dem im wesentlichen waagrechten Abgaskanal mit darin angeordneten Rohrschlangenbündeln, die quer zur Strömungsrichtung des Abgases ange­ ordnet und mit Rüttelreinigungsvorrichtungen versehen sind, dadurch gekennzeichnet, daß der obere Bereich der Rohrschlangenbündel (2) außerhalb des Abgaskanals (1) angeordnet ist und etwa 20 bis 50% der Länge des im Abgaskanal (1) vom Abgas beaufschlagten Bereich der Rohrschlangenbündel (2) entspricht, wobei der obere Bereich der Rohr­ schlangenbündel (2) von einer mit dem Abgaskanal (1) verbundenen gas­ dicht getrennten Kammer (4) ummantelt ist, in dem die Rüttelreini­ gungsvorrichtungen (5) und die Aufhängungen (9) für die Rohrschlangen­ bündel (2) angeordnet sind.1. Heat exchanger, which is traversed by dust-containing exhaust gas, consisting of the essentially horizontal exhaust duct with tube coil bundles arranged therein, which are arranged transversely to the flow direction of the exhaust gas and are provided with vibrating cleaning devices, characterized in that the upper region of the tube coil bundle ( 2 ) outside the exhaust gas passage (1) and about 20 to 50% of the length corresponding to the applied in the exhaust duct (1) from the exhaust area of the coil bundle (2), wherein the upper portion of the nest of pipes (2) of a with the exhaust gas channel (1) connected gas-tightly separated chamber ( 4 ) is encased, in which the vibrating supply devices ( 5 ) and the suspensions ( 9 ) for the coiled tubing bundles ( 2 ) are arranged. 2. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Abdich­ tung (10) zwischen der Kammer (4) und dem Abgaskanal (1) aus gekühlten Rohren (11) gebildet ist.2. Heat exchanger according to claim 1, characterized in that the sealing device ( 10 ) between the chamber ( 4 ) and the exhaust duct ( 1 ) is formed from cooled pipes ( 11 ).
DE19914121815 1991-07-02 1991-07-02 Heat exchanger Expired - Lifetime DE4121815C2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19914121815 DE4121815C2 (en) 1991-07-02 1991-07-02 Heat exchanger
PL29508092A PL169573B1 (en) 1991-07-02 1992-06-30 Heat exchanger
ES9201358A ES2060511B1 (en) 1991-07-02 1992-06-30 HEAT RECOVERY.
AU19323/92A AU651702B2 (en) 1991-07-02 1992-07-01 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19914121815 DE4121815C2 (en) 1991-07-02 1991-07-02 Heat exchanger

Publications (2)

Publication Number Publication Date
DE4121815A1 true DE4121815A1 (en) 1993-01-14
DE4121815C2 DE4121815C2 (en) 1993-11-11

Family

ID=6435217

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19914121815 Expired - Lifetime DE4121815C2 (en) 1991-07-02 1991-07-02 Heat exchanger

Country Status (4)

Country Link
AU (1) AU651702B2 (en)
DE (1) DE4121815C2 (en)
ES (1) ES2060511B1 (en)
PL (1) PL169573B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821212A3 (en) * 1996-07-27 1998-09-16 Metallgesellschaft Ag Heat exchanger

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD49476A (en) *
GB1099742A (en) * 1966-01-28 1968-01-17 V Teplotekhnichesky I Im F E D A device for vibrational cleaning of tubular heating surfaces in heat-exchange plants from external contamination mainly of slag and ash
DE2411133A1 (en) * 1974-03-08 1975-10-09 Babcock & Wilcox Ag DEVICE FOR CLEANING HEATING SURFACES
DE3445735A1 (en) * 1983-12-30 1985-07-11 Smidth & Co As F L HEAT EXCHANGER
DE3503605A1 (en) * 1985-02-02 1986-08-07 Erk Eckrohrkessel Gmbh, 1000 Berlin Impact cleaning device built into the boiler

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT308405B (en) * 1970-07-21 1973-07-10 Babcock & Wilcox Ag Waste heat boilers through which exhaust gases with a high dust content flow, especially for roasting ovens
CA1012960A (en) * 1975-09-25 1977-06-28 Dominion Bridge Company Mechanical cleaning device for boilers with gas flow containing sticky dust
CA1104890A (en) * 1977-04-28 1981-07-14 Heinrich Vorkauf Pipe element for heating surface groups
DE3140117A1 (en) * 1981-10-09 1983-04-28 Joachim 4044 Kaarst Kümmel Cleaning device
DE3226483A1 (en) * 1982-07-15 1984-01-19 Erk Eckrohrkessel Gmbh, 1000 Berlin Support of vibratable heating-surface elements
IT1167248B (en) * 1983-10-05 1987-05-13 Redecam Srl HEAT EXCHANGE SYSTEM FOR FLUIDS WITH SUSPENSION PARTICLES
DE3632982A1 (en) * 1986-06-30 1988-03-31 Gutehoffnungshuette Man DEVICE FOR CLEANING THE INTERNAL AND EXTERNAL WALL OF STANDING OR HANGING TUBES

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD49476A (en) *
GB1099742A (en) * 1966-01-28 1968-01-17 V Teplotekhnichesky I Im F E D A device for vibrational cleaning of tubular heating surfaces in heat-exchange plants from external contamination mainly of slag and ash
DE2411133A1 (en) * 1974-03-08 1975-10-09 Babcock & Wilcox Ag DEVICE FOR CLEANING HEATING SURFACES
DE3445735A1 (en) * 1983-12-30 1985-07-11 Smidth & Co As F L HEAT EXCHANGER
DE3503605A1 (en) * 1985-02-02 1986-08-07 Erk Eckrohrkessel Gmbh, 1000 Berlin Impact cleaning device built into the boiler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0821212A3 (en) * 1996-07-27 1998-09-16 Metallgesellschaft Ag Heat exchanger

Also Published As

Publication number Publication date
ES2060511A2 (en) 1994-11-16
AU1932392A (en) 1993-03-11
ES2060511B1 (en) 1998-01-01
DE4121815C2 (en) 1993-11-11
ES2060511R (en) 1997-05-01
PL295080A1 (en) 1993-02-08
PL169573B1 (en) 1996-08-30
AU651702B2 (en) 1994-07-28

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: SHG-SCHACK GMBH, 34123 KASSEL, DE

8327 Change in the person/name/address of the patent owner

Owner name: ALSTOM ENERGY SYSTEMS SHG GMBH, 34123 KASSEL, DE

8327 Change in the person/name/address of the patent owner

Owner name: ALSTOM POWER ENERGY RECOVERY GMBH, 34123 KASSEL, D

R071 Expiry of right
R071 Expiry of right