DE2345824A1 - BOILERS FOR CENTRAL HEATING SYSTEMS - Google Patents

Description

Patent attorneys

Dipl. Ing. C. Wallach ,, _β "^, _Λ _

Dipl. Ing. G. Koch ^{September 11} , 1973

Dr. T. Haibach _{l4 4ο1} . _{h / iie}

8 Munich 2

Kauflngerstr. 8, phone 24O275

Societe dl te: SOMY SOCIETE AN (XiYNE Couvin / Belgium

Central heating boilers

The invention relates to a boiler for central heating systems for liquid or gaseous fuel with an annular or cylindrical combustion chamber and with inlet (flow) and return lines with parallel Axles in a casing that surrounds the combustion chamber.

So far known subdivided cast iron boilers are made of different Element types built up depending on their shape and their function (front surface, rear surface, intermediate elements).

These composite elements generally form a firebox having a smooth shape, which has a relatively large volume and relatively poor utilizing the heat radiation of the flame as well as a significant relaxation of the combustion gases causes, thus reducing the rate of these gases is considerably reduced. The route of the combustion products is such that an outflow is caused in the direction of the height, which results in a construction of the heating boiler which is very high and space consuming.

The invention is based on the object of providing an improved boiler of the type mentioned at the outset with improved control

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to create a structure in which an optimal compactness through a special geometric shape of the individual elements is achieved and in which the space requirement of the boiler can be significantly reduced and the outflow of the combustion gas is significantly improved.

This object is achieved according to the invention in that the boiler is formed by a single new type of element is "which allow the construction of a boiler with a vertical or horizontal axis that by joining these Elements, on the one hand, a combustion chamber or a heat-radiating combustion space and, on the other hand, through-ducts for the combustion gases are formed on the flange and that Each element that is involved in the formation of the combustion chamber boiler block is arranged in a casing that has the shape of a right-angled prism, wherein the superposed inlet and return lines of the heating gas are arranged in the free angles that surround the circular firebox.

According to an advantageous embodiment of the invention, the overall cross-section of each passage channel for the combustion gases is progressive in the direction of the ttafang reduced to the cross section of the combustion chamber.

This allows the outflow speed of the combustion gases to be maintained. In practice, these combustion gases progressively give off their calories of heat to the heat exchange walls of the boiler, and on top of this reduction in temperature, the combustion gases reduce it Volume, so it is important to determine the cross-section of the passage channels of the gas as a function of the volume reduction to reduce.

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Further advantageous refinements and developments of Invention emerge from the claims.

The invention is illustrated below with reference to in the drawing illustrated embodiments explained in more detail «

Point in the drawing

1 shows an axial diagonal section of an embodiment the boiler;

Figure 2 is a front view of an element;

3 shows a sectional view of a horizontal arrangement of the elements for forming an embodiment of the boiler with a vertical axis;

Fig. 4 - a modified embodiment of the boiler according to Fig. 3 *

Flg. 5 a detail of a gas duct

The one divided into individual sections and shown in the drawing Boiler is formed by elements or sections 1 "which in the case of Fig. 1 around a horizontal axis next to" are arranged to each other and to each other by a sealing arrangement of seals made of soft material or with the help of metallic connecting elements of the double-conical type or with the help of left-right-handed nipples are connected to each other.

By arranging the elements 1 next to one another, on the one hand a combustion chamber or a heat radiating furnace

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formed in such a way that the elements 1 are perpendicular to the axis of the Breanrauaes 2 and on the other hand at the circumference of the drainage canals 3, 4 are arranged for the combustion gas.

Each element 1 has a circular in its interior the surface arranged in the middle, which has a portion of the heat radiating Combustion chamber 2 and which is provided with crenellated projections 5, which are thus arranged on a circle are·

An essential feature is that each of the formation of the combustion chamber-boiler block involved element .in the interior of a casing 6, which has the shape of a right-angled Has prism, in which a collecting box 7 is arranged in each case along the upper and the lower surface, through The one hole 8 is drilled through in such a way that a connection for a line is formed, which is the connection for the inlet and allows the return of the heat transport medium of the heating system.

On the collecting tanks 7 are circular arc-shaped branches 9 (Fig. 2) connected «wings 10 protrude on the end faces of these branches in contact with the combustion products, seen.

The assembly of all elements 1 with one another results in a network of superimposed university ducts, one of which Collector J5 (inner collector) with a collector 4 (outer collector) connected inside a right-angled prism that runs parallel to the axis of the furnace.

As can be seen in simple catfish from Fig. 2, the Total cross-section of the inner collector 3 (the four lines is formed) smaller than the cross section of the chamber

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and on the other hand is the total cross-section of the outer header 4 (which is formed by four lines) smaller than the total cross section of the inner collector 3

If the assembly of the elements 1 is carried out, dad a Boiler with a horizontal combustion chamber is formed, the combustion products carrying the heat pass through the length of the boiler in three layers one above the other in the example shown arranged channels »which are located in the four angles, which result in the insertion of the combustion chamber into the right-angled prism that circumscribes the combustion chamber "

The boiler block formed in this way is completed at the front by a door panel II, which is provided with a seal 12 is provided for the Absohlufl of the furnace and a deflection box for the oasis between a return circuit (Hötl 13) and a flow circuit (PfW-I 14) results.

A burner (not shown) is arranged and fastened in an opening 15 of this door panel and a viewing hole 16 is provided.

On the back are the elements with a baffle 17 provided «which deflect the gases from the heat-radiating furnace chamber 2 in the direction of the return circuit 13. This record is largely thermally insulated to avoid heat loss.

In a special embodiment, this plate 17 be double-walled and the heat-carrying fluid of the Manage central heating system

The baffle 17 is arranged in the interior of the collector 16 for the exhaust gases, which carries the exhaust pipe 19 to the chimney.

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Thanks to the construction, the inspection and cleaning processes of the boiler can be carried out by simply opening the whose plate or door 11 are made.

If «as in Flg. 3, the elements described 1 identical elements are arranged horizontally and one above the other in such a way that the combustion products are at least three or four HsI pass through the height of the boiler boiler «results a heating boiler with a vertical combustion chamber «

The heat-radiating furnace space 2 is formed by the various elements 1 arranged one above the other and is open the side opposite the burner by a strong heat * insulated lowering plate 20 closed “The hot oasis must hence along the walls of the smoke-emitting furnace rise and are diverted into the flow channel 21 by an end plate 22.

At the lower part of the boiler, a second baffle 23 "which is generally thermally insulated" directs the combustion gases so from «that these rise in the return channel 24.

At the top, a rough box 25 collects the combustion gases and diverts it to an exhaust device 26.

A modified embodiment (FIG. 4) can thereby be achieved "that the exhaust pipe 26 of the combustion products is placed directly on the lower baffle 23"

Dta the uta flushing of the flow medium carrying the heat Heating system containing coverings to activate the combustion products «can use the flow and return cannula for the hot gas with oases of a special arrangement

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are provided "which force the combustion products to do so" in the flow * and return circulate for the hot gas back and forth to run here.

The Qasführurigen can be made of a fire-resistant material be made. They can be formed by sheet metal strips 27 (Pig. 5) which are provided with deflection plates 28.

These gas ducts can very easily be removed from the boiler can be pulled out by simply opening the access door of this boiler.

Patent claims:

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Claims (1)

Patent claims: Central heating boilers for liquid or gaseous fuel with an annular or cylindrical combustion chamber and with inlet - (forward -) and return lines along parallel axes in one Casing coaxially surrounding the combustion chamber, characterized in that the boiler is formed by a single and novel type of element (1) that allow the construction of a boiler with a vertical or horizontal axis that by joining of the elements (1) on the one hand a combustion chamber (2) or a radiant furnace and on the other hand in the direction of the Itafang passage channels (3, 4) for the combustion gases are formed that each element (1), which contributes to the formation of the combustion chamber boiler block *, is circumscribed by a casing (6) that the Has the shape of a right-angled prism and that the flow and return channels arranged one above the other for the heating gas are arranged in the free angles that result around the circular combustion chamber 2. Boiler according to claim 1, characterized in that that each element (1) has a circular end face in the center, which has a section of the heat radiating furnace chamber (2) and that this end face with crenellated projections (5) is provided. 3a heating boiler according to claim 1, characterized in that that the prism-shaped casing has a collecting box (7) along its upper and lower surface, 409813/0407 in which a bore (6) is introduced «that a connection results in the connection of the flow and return circuit of the heat-carrying flow medium Heating system enables » 4 ο heating boiler according to claim 1 and 2, characterized in that arcuate branches (9) are connected to the collecting box (7) and that wings (10) are provided on the end faces of these branches which are in contact with the combustion products · 5 · Boiler according to one of claims 1 to 4 «thereby characterized «that the total cross-section of the inner collector of the circumferential channels (3) in the Near the chamber (2) is formed, smaller than the cross section of this chamber (2) and that the general cross-section of the external collector is that of the internal Collector adjacent Ifafangskanal (4) formed 1st, is smaller than the total cross-section of this inner Collector's (3) 6. Boiler according to one of claims 1 to 5 «characterized characterized «that the assembly of all elements (1) with one another is arranged one above the other Network of utafang canals results in 7 «Boiler according to claim 5, characterized in that with such an assembly of the elements (1) «that a boiler with a horizontal combustion chamber is created which carries the heat of the combustion products Pass the length of the boiler in three or more superimposed circles, which are arranged at the four angles are created by inserting the combustion chamber in 409813/0407 the right-angled prism are formed, which circumscribes the combustion chamber. 8 · Boiler according to claim 7 » characterized in that the boiler block has a door (11) on the front side which is provided with a seal (3.2) for closing off the combustion chamber and which forms a deflector box for the combustion gases between a return circuit (arrow 13) and a flow circuit (arrow 14) results. 9. Boiler according to claims 7 and δ, characterized in that the elements on the back are provided with a baffle plate (17), which the combustion gas of the radiant furnace (1) in Direction of the return circuit (13) deflects and dafi the Plate (15) is arranged inside the Rauchgassamnlers (18), which carries the exhaust pipe (I9) to the chimney. 10. Heating boiler according to claim 6, characterized in that the elements (1) are horizontal and in such a way one above the other are arranged so that the combustion products are at least three or four times the total height of the boiler run through; being a boiler with vertical Combustion chamber results 11. Boiler according to claim 10, characterized in that the heat radiating furnace chamber (2), which is formed by the arrangement of the various elements (1) on top of one another, is closed on the side opposite the burner by an end plate (20) « which is strongly thermally insulated, and that the hot gases are thereby forced to rise along the walls of the heat-radiating furnace and are diverted into the flow channel (21) by an end plate (22). 409813/0407 12. Boiler according to claim 1, characterized in that «the channels for the hot gases with QasfUhrungen are provided "which are made of a fire-resistant material and include sheet metal strips (27)" with Deflection plates (28) are provided. 409813/0407