DK168175B1 - Two-part boiler - Google Patents

Abstract

Heaters have a bottom chamber, a burner opening, an opening for the removal of the flue gases, a forced flue gas guide in the heater and, surrounding the flue gas guide, a heat exchanger with connections for the forward and return run of the heating medium. In order to design these simply in terms of structure and economically in terms of manufacture and furthermore to guarantee easy assembly and simple cleaning, these are provided with a heater (1, 39) divided in two, heat exchangers (30, 31; 49, 53), which conduct the heating medium, are somewhat shorter than the clear inner space of the heater (1, 39) and end at a predetermined distance before the opposite wall, being formed in each half (2, 3; 40, 41) on one of the walls (28, 29; 47, 48) respectively, which lie opposite one another and face towards the heating interior. The heat exchangers (30, 31; 49, 53) of the two halves are arranged staggered in relation to one another so that possibly with the exception of the end regions a heat exchanger of one half engages with separation between two heat exchangers of the neighbouring half. Each half of the heater is provided with one heating forward and return run (6, 8, 9) respectively, the two halves being interconnected with interposition of a circumferential seal (25, 58) (Figure 1). <IMAGE>

Description

in DK 168175 B1

The invention relates to a two-part boiler of the kind specified in the preamble of claim 1.

A boiler of the above kind is known from US-A 1,462,018. The individual sections of the flue gas can be relatively easily cleaned by means of a brush or the like. However, the well-known designs at a great distance between the individual heat exchangers are not suitable for so-called condensing boilers, where the flue gas is cooled as much as possible in the boiler room, i.e. usually down to the 10 temperature of the heating system return circuit. Such boilers require a gas in the gas delivery system which transports the hot gas out of the boiler, as well as a condensate remover.

Known condensed boilers require a very large heat exchanger in the boiler, through which the supplied energy is delivered to the heating circuit as well as possible. These large heat exchanger surfaces are obtained by known heat boilers in that the heat exchanger is laid out in an amber-shaped boiler, whereby the flue gas can iron both sides of the heat exchanger along this meander configuration. It is customary to arrange the burner in the bottom region of the boiler, whereby the exhaust gas opening is located in the upper boiler area near the end of the heat exchanger. The disadvantage of this known heating boiler is that it is extremely labor-intensive in manufacturing and therefore expensive due to the complicated built-up and bulky heat exchanger and, in particular, the cleaning of the flue gas ducts due to the small distance of the heat exchanger surfaces can be difficult and time-consuming. implemented.

DK 168175 B1 2

The object of the invention is to design a water boiler of the kind mentioned in the introduction in such a way that it becomes simple in construction and thus inexpensive in manufacture and in particular easy to clean.

This problem is solved by the characteristic features of claim 1.

Thus, a heating boiler according to the invention is formed in two parts, the two halves being connected to an enclosing seal extending on the outside of the furnace.

The connection between the two halves of the furnace is advantageously made by means of screws which can be designed as quick-lock screws. On each half of each opposite wall of the boiler, facing the furnace compartment, a heat exchanger conducting the heating medium is formed which is somewhat shorter than the furnace room lighting in the boiler, thus ending at a predetermined distance from the opposite wall of the other boiler half. The heat exchanger on each of the two halves is so attached to the walls that they are arranged displaced relative to each other and thus also, apart from the end region, intervene so that each heat exchanger receives a wall lying between two heat exchangers from each other. the opposite wall. These heat exchangers, which are arranged on each wall, are interconnected via connecting pipes, whereby each half of the boiler is connected to a heating system supply and return. The discharge gas ducts, which ensure a forced flue gas flow from the burner to the discharge gas opening, are formed between the two opposite wall heat exchangers, which act finger-tightly on each other. The heating medium is thereby fed countercurrently through the heat exchanger so that the heating system inlet is in the region of the exhaust gas opening and the heating system outlet is in the area of the burner opening.

In an advantageous embodiment, the heat exchanger can be formed in the form of rings, whereby respective neighboring rings are interconnected via connecting pipes. The heating medium is thus supplied to each ring via a pipe which may advantageously be formed in the wall itself. The heating medium then flows through the ring, which is divided into a place where the transfer of the heating medium to this particular heat exchanger takes place, whereby the heating medium is then fed into the neighboring heat exchanger via the connecting pipe. In a heat boiler with a heat exchanger formed of concentric rings, the burner opening, like the flue gas opening in the center of the boiler, is formed in the middle of the boiler on its opposite halves, whereby the flue gas is formed between the annular heat exchanger elements from the middle of the boiler. its outer surfaces. Here 20 the flue gas is collected and at the outside of a wall in the heat boiler is directed to the flue gas opening.

According to another embodiment, the heat exchanger may also be formed in the form of drawers extending from each wall, whereby the drawers are provided internally with a dividing wall, forcing a flow of the heating medium from the wall to the drawer tip, and then reversing the flow direction. back against the wall. The individual drawers are interconnected with connecting tubes. These drawers, which are arranged separately on the opposite walls, intervene, which in turn end up at a predetermined distance from the opposite wall. Between these heat exchangers, the flue gas duct is formed, which causes a forced flue gas flow from the burner opening to the flue gas opening.

Further advantageous features of the invention appear from the subclaims of the description and the drawings.

According to the drawing, the embodiments of the invention will be more fully described hereinafter.

Fig. 1 shows a cross-section through an embodiment of the heating boiler according to the invention; Fig. 2 shows a section similar to Fig. 1, however in the dismounted condition,

Fig. 3 is a cross-section through the boiler shown in Fig. 1, as opposed to the burner opening,

Fig. 4 shows a cross-section through the boiler according to Fig. JL, 20 as seen towards the combustion gas opening,

Figures 5 and 6 each show a side view of the boiler according to Fig. 1,

Fig. 7 shows in plan view the hot water flow in schematic representation, 25 Pig. 8 is a sectional view showing another embodiment of the medicament according to the invention;

Fig. Shows a cross-section through an element of a heating boiler according to Pig.8, DK 168175 B1 5

Fig. 10 shows a side view of the front of the boiler with the door,

Fig. 11 shows the same picture as Fig. 10, however, with the door open, and Fig. 12 shows a side view of the boiler in dismantled condition.

The heating boiler 1 shown in Figs. 1 to 6 consists of two halves 2,3 », both of which are connected to the hiking passage 6. The connecting line 5 is connected directly to the hiking passage 6, while the connection to the connecting pipe 5 is made via a flexible rubber hose 7 · in Figs. .2, the two halves 2.3 are separated, thereby extending the flexible rubber hose 7 completely. The connecting pipes 4,5 are connected to rotary couplings 15, so that the two halves 2,3 can also be rotated relative to each other, so that they can be separately accessible from the inside.

The heating system flow 8,9 »shown in Fig. 4 is connected via pipes 1, 11 at the middle 20 connection points 12,13 · In half 2 an opening 14 is arranged in the middle, until there is connected to a burner 15 · The opposite wall 16, against which the burner flame strikes, is water-cooled. In connection with this wall 16, a flue gas duct 1 /, 25 is provided which collects the flue gas exiting at the outer surface and leads to a central opening 18. The combustion gas fan 19 serves to transport the flue gas and passes the gas via a combustion gas bend 20 to a fuel gas line not shown, 6 DK 168175 Bl. At the lower point of the combustion gas bend 20, a conduit 21 is provided for draining the condensate, close second tube 22 is connected at the lower location of the flue gas, and the condensate as well as the tube 21 are connected to a condensate collection tank. In the tube 22 a curvature 24 is provided which serves as an odor lock.

Both halves of the boiler 21 are provided with an insulation 6o, 6l which, except for the openings 14 and 18, completely surrounds the boiler 1. The two halves 2,3, which are substantially annularly formed, are sealed to each other by means of of a circumferential seal 25, whereby the two halves 2,3 are interconnected by means of nuts 20 screwed on the threaded bolts 27 which are attached to the half 3. This allows a quick separation of the two halves 15 which is advantageous for the purpose of servicing.

Each of the two halves 2,3 is provided with an approximately circular wall 28,29 on which annular elements 3 °, 31 'are attached, each of which encloses a cavity 32,33 · In each of the walls several rows are provided. channels 34,35 »which first supply the water supplied via the hike 6 to the outer annular elements 3o, 31 on. each half 2.3 · The water flows through these elements which are divided into two halves by means of a partition 38.37 inserted into the cavity Jo, 3.3. Thus, the water to be heated flows through the connecting channel 34,35 into the cavity 32,33, whereby the flow direction is given by the partition 38 »37 * The medium then flows in the annular element to the other side of the partition and stays here - via 7 DK 168175 B1 another connecting channel which lifts closer to the center, connecting the respective preceding annular element with the subsequent annular element, passed into the subsequent annular element The process is continued until the water has reached the innermost annular element 3o then to be fed to the heating system supply 8 via the connection points 12,13. Thus, the water flows from the hike 6 through the connecting channels and dividing channels 3, 35, and through the annular elements 30, 31 to the centrally located connection points 12,13 for the heating system flow. The hot gas flows in the opposite direction of the flow direction of the water, i.e. from the central combustion chamber 3 & to the peripheral flue gas ducts 39 »5 yo and thence into the flue gas duct 17. The water to be heated, and the flue gas thus has opposite flow direction, whereby the heating system flow is arranged in the area of the hottest flue gas while is in the area of the cold flue gas.

As can be seen from the figures, the annular elements on each half 2.3 are arranged in such a way as to displace each other that the annular elements 30 on one half can be inserted between the annular elements 31 on the other half. The depth of these annular elements is chosen such that, as is also seen especially on ends shortly before the facing wick 28 and 29, respectively, on the opposite half. Thus, the flue gas channel is restricted by the surfaces of the respective annular elements which force a mean-shaped flue gas lining, as indicated by arrows in Fig. 1.

k DK 168175 B1 o

Thus, a heating boiler according to the invention consists of two halves which are connected to each other by means of a few screws and a sealing ring, which are easily removable and thus easily accessible and easy to clean.

In addition, the annular elements can be manufactured in a simple manner and produced significantly cheaper than comparable boilers.

Another embodiment of the invention is shown in Figs. B to 11. In principle, the boiler is constructed in a similar manner to that described in Eig. 1 to 7, however, in this boiler, the difference is that it is not cylindrical. but square.

As can be seen in Figs. B to 11, the boiler 39 consists of two halves 4o, 4l, whereby the half 4l is formed as 15 doors rotatably arranged on the half cow. The burner 42 is arranged in the upper region, whereby the flue gas guide extends from the top to the bottom, as indicated on Eig.8, and the combustion gas is collected in an exhaust gas collecting duct 44 and sucked off by an exhaust gas fan k'J. The coolant version is reversed, i.e. downwards and upwards, whereby the walking path is fed to both halves 4o, 4l separated via connectors 45,4b. In half 41, the water then flows in the channel 48 arranged in the wall 47 to the first transverse distributor 49 »in which a dividing wall 5 ° to flow in to the front wall of the transverse distributor. Subsequently, in the opposite distribution, in the opposite direction, it again flows back to another channel 4b in the wall 9 DK 168175 B1 k7. and to the next transverse distributor 49, etc., until finally again in the upper area of the combustion chamber 52 it is carried away via the heating system flow.

While half 4l of the boiler 39 exhibits fan-shaped 5 distributors, half 4o, as is particularly apparent from Eig.9, has pocket-shaped guide members 53 which also include partitions 5 'which reach shortly before the corresponding front wall 55 so that the water here, too, it is forced to flow to the front wall 55 and then flow to -10 in the opposite direction to the wall. At the rear wall, ducts 56 are provided which direct the water from a guide member 53 to the next guide member. Here, too, the water flows from below and upwards and is charged to the water flow in the area of the combustion chamber 52.

A condensate tank 57 serves to collect the condensate.

The two halves 4o, 4l are further sealed to each other by means of a circumferential gasket 5 & and connected to each other by means of fast-closing devices 59 ·

A boiler as described above is simple in structure 20 and allows for one medium-sized hot gas piping to arrange a heat exchanger with large surfaces, which is easily accessible from the outside and thus easy to clean.

25

Claims (10)

10 DK 168175 B1 A two-part heating boiler with a combustion chamber (52), a burner opening, an opening (18) for the discharge of the flue gas, and on each half of the boiler (2,3; 40,41) on each of the walls (28, 29; 47.48) formed 5 heat exchangers (30.31; 49.53) which are somewhat shorter than the illumination of the interior space of the boiler (1.39) and end at a predetermined distance from the opposite wall where the heat exchangers are for the two halves are offset so that a heat exchanger on one boiler half is placed between two heat exchangers on the other boiler half, thereby forming between the opposite heat exchangers a mean-shaped flue gas channel and each boiler half connected to a forward and a return flow (6,8,9) for the heating medium, characterized in that in the opposite walls 15 (28,29) in each boiler half there are connecting channels (34, 35) connecting each wall (28,29 ) heat exchangers (30, 31) with each other, wherein flue gas is then forced against the flow direction of the return heating medium and that one wall - \ (28), which is in operation connected via an orifice gasket 20 (25) with the opposite boiler half, with forward and return flow (6,8,9) the connector can be moved away from the second wall (29) to expose the entire flue gas duct (39,40). Heating boiler according to claim 1, characterized in that the burner opening (.14) and the opening (18) for the discharge of the flue gas are arranged opposite one another in the middle of the heating boiler (1), that the heat exchanger (30, 3l) consists of rings which are arranged concentrically in relation to the burner and flue gas opening (14, 18), that the heat exchange rings in the area of supply and discharge of the heating medium are divided longitudinally by a radially extending wall and that the discharge from the respective outside a wall lying rings via a connecting channel (3 ^ 35j) is connected to the lead of the next ring in an inward direction for the same wall. Heating boiler according to claim 2, characterized in that the connecting duct (3 ^ 35) is formed in the respective wall {2b, 29) of the boiler half (2,3) · 10 k. The heating boiler according to one of claims 2 or 3 It may be appreciated that the two heat boiler halves {2, 'JJ including the heat exchanger and connecting tubes are molded in one piece. 5. A boiler according to one of claims 2 to 4, characterized in that the heat flow (b, y) is connected to the outer heat exchanger ring and the heat return flow (6) is connected to the innermost heat exchanger ring (20, 31 · A boiler according to one of claims 2 to 5, characterized in that the wall opposite the burner opening (14) is flowed through the heating medium. 7 · Heating boiler according to one of claims 2 to b, characterized in that the flue gas supply from the burner room takes place in the area at the innermost and the flue gas delivery in the area at the outermost heat exchanger. DK 168175 B1 12 Heating boiler according to one of claims 1 to 7, characterized in that one half of the heating boiler is formed as a pot-shaped and the other substantially as a plane, and that the non-transmissive sealing gasket is located in the outer peripheral region of the heating boiler. boiler. Heating boiler according to one of claims 2 to 8, characterized in that the heating boiler is cylindrical. • 10 lo. Heating boiler according to one of Claims 1 to 9, characterized in that the heating boiler (39) 6r is formed square, that one half (cow) of the heating boiler (.39) is shaped drawer-shaped with drainage ducts on the walls and on the drawer-shaped parts, and the the second half (4l) is formed as a door 15 with projecting transverse distributors (ky) which conducts the heat water and which interacts with the fans formed in part (cow), so that mean-shaped flue gas guides are formed between the fans and the transverse distributors (* » 9) · Heating boiler according to claim 9, characterized in that partitions (50.5 * 0) are forced into the transverse distributors, as in the fan-shaped water guides, forcing a mean-shaped water flow.