DE2206541B1

DE2206541B1 - LOCK FOR COMBUSTION CHAMBER AND / OR CLEANING OPENINGS ON BOILERS

Info

Publication number: DE2206541B1
Application number: DE19722206541
Authority: DE
Inventors: Der Anmelder Ist
Original assignee: Individual
Current assignee: Individual
Priority date: 1972-02-11
Filing date: 1972-02-11
Publication date: 1973-08-23
Also published as: DE2206541A1; DE2206541C2

Description

Im gleichen Sinne kann der Verschluß auch so ausgebildet werden, daß in den Rändern der Schale und den Rändern des äußeren Profils in zwei gegen- In the same sense, the closure can also be designed so that in the edges of the shell and the edges of the outer profile in two opposing

überliegenden Eckbereichen Scharnierbolzen aufnehmende Öffnungen angeordnet sind. wodurch die Anbringung besonderer Scharniere entfällt.arranged overlying corner areas hinge pin receiving openings are. This eliminates the need to attach special hinges.

Die Erfindung wird nachfolgend an Hand der zeichnerischen Darstellung eines Ausführungsbeispieles näher erläutert. Es zeigt F i g. 1 in perspektivischer Ansicht der als Schale ausgebildete Verschluß. The invention is explained below on the basis of the drawing an exemplary embodiment explained in more detail. It shows F i g. 1 in perspective View of the shutter designed as a shell.

F i g. 7 in perspektivischer Ansicht und im Schnitt eine vorteilhafte Ausführungsform des Stützprofiles und F i g. 3 im Teilschnitt den Verschluß. F i g. 7 shows an advantageous perspective view and in section Embodiment of the support profile and FIG. 3 the closure in partial section.

In den Figuren ist der als Schale 2 mit hochgebogenen Rändern 3 ausgebildete Verschluß 1 aus dünnem Blech dargestellt. In the figures, it is designed as a shell 2 with upturned edges 3 Shutter 1 made of thin sheet metal.

Diese für sich noch nicht ausreichend steife Schale 2 wird durch das Stützprofil 4 gemäß Fig. 2 ausgesteift, indem dieses einfach in die Schale 2 eingelegt und an einigen Stellen festgepunktet wird, und zwar nachdem vorher entweder eine Brennerplatte 6 und ein Wärmedämmblock 5 eingelegt worden sind, die damit gleichzeitig von dem Stützprofil 4 gehalten werden. Das Stützprofil 4 besteht im Querschnitt aus einem äußeren großen U-Profil7 und einem damit verbundenen inneren kleinen U-Profil 8. Die Brennerplatte 6 muß natürlich nicht in ihrer Fläche der ganzen freien Fläche zwischen dem äußeren U-Profil 7 entsprechen sondern kann auf die Brennflanschbreite abgestimmt sein. Aus Gründen einer guten Halterung soll sie jedoch mit mindestens zwei Seiten bis an das U-Profil 7 heranreichen. This not yet sufficiently rigid shell 2 is through the support profile 4 is stiffened according to FIG. 2 by simply inserting it into the shell 2 is inserted and dotted in some places, either after beforehand a burner plate 6 and a thermal insulation block 5 have been inserted, so that at the same time are held by the support profile 4. The support profile 4 consists in cross section from an outer large U-profile7 and an associated inner small U-profile 8. Of course, the burner plate 6 does not have to cover the entire free area between the outer U-profile 7 but can correspond to the focal flange width be coordinated. For the sake of one However, it should have at least a good bracket two sides reach up to the U-profile 7.

Im inneren U-Profil 8 des Stützprofils 4 ist eine Dichtung 9 eingelegt die sich dann in Schließstellung auf einen Stegrahmen 15 der Kesselvorderwand 13 auflegt. Wie aus F i g. 3 erkennbar. werden die Randbereiche 5' des WärmedämmblockesS vom inneren U-Profil 8 übergriffen, so daß dieses den Wärmedämmblock5 hält. Je nach den Erfordernissen der Verschlußhalterung, sind an entsprechenden Stellen Haltebolzenöffnungen 10 in das äußere U-Profil 7 und in die Schale 2 eingeschnitten und im gleichen Sinne bei Scharnieranlenkung des Verschlusses Öffnungen 12 in die Ränder 3 und in den Rand 7' des äußeren Profils 7, so daß dort ein Scharnierbolzen 11 eines Scharniersteges 14 eingeführt werden kann. Da dieser Verschluß nur ein geringes Gewicht hat, ist kein starkes Scharnier erforderlich. A seal 9 is inserted in the inner U-profile 8 of the support profile 4 which is then in the closed position on a web frame 15 of the boiler front wall 13 hangs up. As shown in FIG. 3 recognizable. the edge areas 5 'of the thermal insulation block S. overlapped by the inner U-profile 8, so that it holds the thermal insulation block5. Depending on the requirements of the lock holder, retaining bolt openings are at the appropriate points 10 cut into the outer U-profile 7 and into the shell 2 and in the same sense when the closure is hinged, openings 12 in the edges 3 and in the Edge 7 'of the outer profile 7, so that there is a hinge pin 11 of a hinge web 14 can be introduced. Since this closure is only light in weight no strong hinge required.

Die Brennerplatte 6 könnte natürlich auch als Joch 6' von außen über die Schale 2 gelegt werden, wie dies nur beispielsweise in F i g. 1 angedeutet ist. Haltebolzenöffnungen würden in diesem Falle vorzugsweise im Bereich dieses Joches vorgesehen werden. The burner plate 6 could of course also be used as a yoke 6 'from the outside the shell 2 are placed, as is only shown, for example, in FIG. 1 is indicated. In this case, retaining bolt openings would preferably be in the area of this yoke are provided.

Eine Schau- und Explosionsklappe kann natürlich an einen derartigen Verschluß in an sich bekannter Weise ebenfalls vorgesehen werden. A display and explosion hatch can of course be attached to one of these Closure can also be provided in a manner known per se.

Wie erwähnt, können mit einem solchen Verschluß eine oder mehrere Öffnungen gleichzeitig abgedeckt werden. As mentioned, with such a closure one or more Openings are covered at the same time.

Claims

Claims: 1. Closure for combustion chamber and / or cleaning openings on boilers, consisting of one made of thin sheet metal as a shell with one on the boiler side Seal formed closure plate with edges beveled at right angles, the are connected to a support profile, as well as holding elements, thereby marked e i c h n e t that the support profile (4) in cross-section consists of two juxtaposed, connected, boiler-side open U-profiles (7, 8) is formed, of which the outer profile (7) the height of the edges (3) and the inner profile (8) only a part corresponds to the height of the outer profile (7), one in the shell (2) Thermal insulation block (5) from the inner profile (8) containing the seal (9) partially is covered.

2. Closure according to claim 1, characterized in that between the shell (2) and the thermal insulation block (5) at least in a central partial area a burner plate (6) is arranged.

3. Closure according to claim 1 and / or 2, characterized in that that in the shell (2) and the outer profile (7) continuous retaining bolt openings (10) are arranged.

4. Closure according to one of claims 1 to 3, characterized in that that in the edges (3) of the shell (2) and the edges (7 ') of the outer profile (7) Hinge bolts (11) receiving openings in two opposite corner areas (12) are arranged.

5. A closure according to claim 1, characterized in that the burner plate (6) is arranged over the outside of the shell (2) as a yoke (6 ').

The invention relates to a closure for combustion chamber and / or Cleaning openings on boilers, consisting of a thin sheet metal shell with a boiler-side seal formed closure plate with right-angled bevelled edges that are connected to a support profile, as well as holding elements.

Closures of the type mentioned are based on the German utility model 6947474 known, with such closures in particular cleaning openings of heating boilers.

The use of thin metal sheets to form opening closures is also known from this German utility model 6947474, but with this one Closures are not dependent on rigidity because the main closure the relevant opening and the holder of the closure through a into the opening engaging clamping element is effected, according to the known principle of thermos flask pinch valves is trained.

The actual flap consists of two collapsed Shells, in particular only the inner shell made of thin sheet metal target and is disposed with the outer shell to form a sealing groove. A total stiffening of the entire outer canopy edge area is not given.

In order to give fasteners the necessary rigidity, these made of relatively thick sheet metal (at least 3 mm) and additionally with a support frame, Stiffening embossments or the like. Provided.

It is also known to manufacture such closures from gray cast iron. This makes them relatively heavy and has a rough surface. In the design one is heavily dependent on the casting process.

If large-area parts are involved, they must be relatively thick-walled be. There are considerable model costs. In consideration of their weight, must appropriately massive hinges are provided.

For the attachment of thermal insulation panels are also special and relatively complex measures required, namely double-shell training the German utility model 1962211 or according to the German utility model 1913 481 the arrangement of correspondingly folded holding frames or insulating block edge stiffeners.

The invention is accordingly based on the object of a closure to create which is easy to manufacture using thin sheet metal and which is still stiff, while at the same time using the stiffener for mounting the thermal insulation block and the seal.

This task is with a closure of the type mentioned after Invention achieved in that the support profile in cross section of two side by side arranged, connected, boiler-side open U-profiles is formed, of which the outer profile of the height of the edges and the inner profile of only part of the height of the outer profile, with a thermal insulation block arranged in the shell is partially covered by the inner profile containing the seal.

Under thin sheet metal is sheet metal with a thickness of about to 1.5 mm to understand. This training leads to advantageous technical ones and economical solutions, low weights, low material content, low Effort and wage share. In addition, such a fastener is of a better design accessible.

If the closure is intended as a door for a combustion chamber, it must of course a passage opening for the burner can be arranged.

With a view to attaching a burner, the closure is designed in such a way that that between the shell and the thermal insulation block at least in a central portion a burner plate is arranged, which is dimensioned in its strength so that one Can make threaded holes for screwing the burner.

The inventive training results in an extraordinary rigid support profile and the smaller profile can be used as a seat for a seal and serve to hold the thermal insulation block.

In view of the great rigidity of the support profile, the Area of the outer profile cut into the plate and the profile retaining bolt openings.