DE1451590C

DE1451590C -

Info

Publication number: DE1451590C
Application number: DE19641451590
Authority: DE
Priority date: 1964-11-13
Filing date: 1964-11-13
Publication date: 1973-03-01

Description

je nach der gewünschten Leistung, die sich wiederum in der Breite des Dampferzeugers niederschlägt, eine verschiedene Anzahl an Hängekörpern nebeneinander anzuordnen.depending on the desired output, which in turn is reflected in the width of the steam generator, one to arrange different numbers of hanging bodies next to each other.

In den Abbildungen ist ein Ausführungsbeispiel der Erfindung schematisch dargestellt. Es zeigtAn exemplary embodiment of the invention is shown schematically in the figures. It shows

Abb. 1 einen lotrechten Schnitt durch einen Dampferzeuger, bei welchem der Feuerraum unmittelbar in den ersten Strahlungszug übergeht,Fig. 1 is a vertical section through a steam generator, in which the furnace is directly passes into the first radiation train,

A b b. 2 die Vorderansicht eines Hängekörpers.A b b. 2 is a front view of a hanging body.

Der Feuerraum ist mit 1 bezeichnet. Er ist mit vier übereinanderliegenden Frontbrennern 4 bzw. vier Reihen derartiger Brenner besetzt. Am unteren Ende schließt sich an den Feuerraum ein Aschentrichter 11 an, aus dem bei 21 die Asche abgezogen wird. Nach oben geht der Feuerraum 1 unmittelbar in den Strahlungszug 2 über. An den Strahlungszug schließt sich auf der Rückseite ein Querzug 3 an. Die Wände des Strahlungszuges und des Feuerraumes werden durch vom Arbeitsmittel durchflossene Rohre 5 gebildet, die, wie aus der Abbildung ersichtlich, von unten nach oben gerade durchlaufen. Sie werden in der Regel als Verdampferrohre in den Kreislauf einbezogen sein. Es kann aber auch vorkommen, daß die eine Wand oder ein Teil einer Wand als Überhitzerrohre ausgebildet ist. In den Strahlungszug 2 sind erfindungsgemäß von oben Hängekörper 6 eingehängt. Die Hängekörper bestehen, wie insbesondereThe combustion chamber is denoted by 1. He is with four superimposed front burners 4 or four Rows of such burners occupied. At the lower end, an ash funnel 11 adjoins the combustion chamber from which the ashes are drawn off at 21. At the top, the furnace 1 goes directly into the radiation flue 2 over. A transverse train 3 adjoins the radiation train on the rear side. The walls of the The radiation train and the combustion chamber are formed by pipes 5 through which the working medium flows, which, as can be seen in the figure, go straight through from bottom to top. You will be in the Usually be included in the circuit as evaporator tubes. But it can also happen that one wall or part of a wall is designed as superheater tubes. Into the radiation train 2 are suspended body 6 according to the invention from above. The hanging bodies exist, such as in particular

ίο aus A b b. 2 ersichtlich, aus U-förmig gebogenen Rohren 7 mit verschiedener Schenkellänge. Die mittleren, waagerechten Teile 17 dieser U-Rohre bilden zusammen den Boden 16 eines Hängekörpers. In den oberen Teil der Hängekörper sind Schotten 8 eingehängt, die in der Regel als Überhitzerheizflächen ausgebildet werden. Im Betrieb bildet sich eine Flamme etwa in der Form des Pfeiles 9 aus, die erkennen läßt, daß an der verengten Durchtrittsstelle eine starke Durchwirbelung der Rauchgase stattfindet.ίο from A b b. 2 can be seen from U-shaped bent tubes 7 with different leg lengths. The middle, horizontal parts 17 of these U-tubes together form the bottom 16 of a hanging body. Bulkheads 8 are suspended in the upper part of the hanging body, which are usually designed as superheater heating surfaces. During operation, a flame forms approximately in the shape of the arrow 9, which shows that there is a strong turbulence at the narrowed passage point the flue gases takes place.

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

1 2 It is the object of the invention to provide a solution to patent claims: to give steam generators whose walls are formed by straight pipes, an equal diameter

1. Steam generator, in which combustion chamber eddy the upwardly flowing fire gases and radiation room with an ascending draft as with the known steam generators are arranged one above the other, thereby marked bent-in tubes.

draws that opposite the burner wall in this solution consists in that in the radiation-radiation space one of two perpendicular, parallel space opposite the burner wall one of two perpendicular Pipe walls and one the perpendicular, right, parallel pipe walls and one the plumb pipe walls connecting pipe walls perpendicular to them, connecting perpendicular to them running and from the rear wall of the jet and from the rear wall of the radiation space forward sloping pipe wall space to the front sloping pipe wall exist existing Hanging body, the one made of a U-shape, the hanging body, the one made of a U-shaped bent, tight bent pipe loops laid close together are composed of pipe loops laid close together is composed, is provided. 15 is provided.

2. Steam generator according to claim 1, characterized by this hanging body, the fire gases, characterized in that the hanging body from the ceiling streamed in the part of the radiation train upwards is led down into the radiation space. men, which is located below the hanging body,

3. Steam generator according to claims 1 deflected inward, while meeting the through the and 2, characterized in that the hanging 20 remaining cross-section upwardly flowing fire body gases down beyond the transverse pull, with which they form eddies and stretch themselves intimately, Mix. The one with the designs that have been common since then

4. Steam generator according to claims 1 curved wall pipes achieved purpose is thus to 3, characterized in that at least also by the hanging body according to the invention the upper part of the hanging body bulkheads reached from 25. However, wall pipes result as an advantage Pipes through which the working medium flows for the radiation train, which are straight from bottom to top are built. go through and, as a result, are simple and cheap.

5. Steam generator according to one or more also the ones that occur due to the thermal expansions of claims 1 to 4, characterized in that changes are easier to do with this type of construction that the hanging body consists of fin tubes, 30 overlooked and mastered.

whose fins are welded together. The hanging body is expediently made of tight

6. Steam generator after one or more arranged side by side and in the Dampfder Claims 1 to 5, characterized in that pipe loops included in the generator system are formed, that in the case of broad radiation trains, several slopes are particularly advantageous when one bodies are arranged side by side. 35 U-shaped bent tubes of gradually increasing-

7. Steam generator laid side by side after one or more of the leg length so that one of claims 1 to 6, characterized in that a wall sloping towards the front is formed. That can be done that perform particularly well on the back wall as well as on the when you consider the pipes as Front wall hanging bodies are arranged, with fin tubes forming and the fins together the hanging bodies of the front wall are welded 4 ° higher. In terms of steam technology, the pipes can after than that of the back wall. be connected to the La Mont system as parallel circuits. But you can just as well after the

Operate a continuous system (Benson or Sulzer).

It is useful to remove the hanging body from the

The invention relates to a steam generator to be led down into the radiation flue at 45 ceiling. at which combustion chamber and radiation chamber with - a steam generator with rectangular radiation rising Train are arranged one above the other. pull and subsequent transverse pull becomes the

The firebox can be designed to draw off the ashes hanging bodies so that it is j

in dry form as well as a melting chamber extending downwards beyond the transverse tension. In j

Discharge liquid slag be formed. As a focal point, you still have the option in this case

coal dust, oil or gas can be used, bulkheads are to be arranged in the interior of the hanging body,

possibly also the burning of sulphite- the at least the upper part of the hanging body

caustic possible. The radiation flux closes in empty and also in the steam generator system |

indirectly to the combustion chamber upwards. are to be built in. Mostly these bulkheads are called J.

It is known to design 55 superheater heating surfaces to improve the burnout.
and in order to avoid the formation of strands, the transverse In general, with a rectangular cross-section of the radiation path, one incision of the radiation path will only be made on one side and then widened again. To arrange that to body. However, nothing stands in the way of achieving, are 'be, i, rfep} itagonal cross-section of the if a multiple deflection is desired, radiation train the Rohfe of the rear wall forward 60 hanging bodies bent at different heights on each other j and then again obliquely ge backwards - opposite sides, for example on the j leads. To be arranged on steam generators with radiation flues from the rear and the front,
With a circular cross-section, the walls are usually all- For smaller dimensions, it is sufficient to constrict on the side. All these types of construction require a single hanging body to be installed on the back, j large number carefully according to a certain specification. If, on the other hand, it is a question of a steam generator with curved pipes, the production of which is of a larger width, then several hanging elements are required arrange them next to each other in terms of work and costs, even in | is bound. is able to put the hanging bodies in stock and