DE1604050B1 - Articulated boiler for collective heating systems fired with flowing fuels - Google Patents

Description

1 2

The invention relates to a with a flowing fuel at least next to a return flow

fuel-fired sectional boilers for collective heating. .

zation systems with an axial, central combustion chamber.

mer, that of adjacent, through internal, derheizkessel is achieved that the return flow

radial and outer water chambers formed directly with the axial combustion chamber in connection

and return currents is surrounded. so that the return water over a long

In order to avoid dew point corrosion in the shorter distance, continuously with the hotter ones like Glie heating gases fired with flowing fuels meet in the secondary heating surface, In this way, the incoming return flow is known, the return water before entering the io water with the hotter gases of the return boiler above the critical temperature below which currents are brought into contact, causing it to be over Hot gas condensation occur to increase. Mostly the critical temperature is warmed up and dew point corm automatic mixing devices prevent corrosion.

th, return flow coming from the heating system- The drawing shows two advantageous designs

water hot flow water mixed in, so that the 15 approximately examples of a sectional heating according to the invention

Return water above the critical temperature kesseis shown schematically. It shows

comes. Such mixing devices require a Fig. 1 a longitudinal section after the broken one

additional construction costs and often have moving line I-I of the Fi g. 2, 3, 4 and 5,

Parts that require maintenance. Fig. 2 is a view of a middle link and

The structure of known articulated boilers brings the ao Fig. 3 the view of an associated rear

There is a risk of dew point corrosion. So the end link shows

for example the French patent specification 1 365 634 Fig. 4 the view of another middle link

a non-sectional boiler in steel construction, not as well

only for solid, but also for liquid and gas-conveying Fig. 5 the view of an associated rear end

moderate fuels with which the problem of the rope link.

falling below the point occurs. In FIGS. 1 and 3, the direction of flow of the water in the forward and axial combustion chamber 1 from an inner water return is indicated by arrows in each middle link according to FIGS. 1, 2 and 4. Surrounding the cold rear chamber 2, which, together with an outer running water, is here in the immediate vicinity water chamber 3 and radial water chambers 4 of the exhaust pipe 16 carrying the coldest gases, 30 return lines 5, 6, 7, 8, 9, 10 and discharged with them. Furthermore, the British patent shows alternating Vorströmzüge, 12,13,14,15,16 forms. 928 097 a boiler with a circulation pipe, in the links and trains are sealed against each other by which the smaller diameter return pipe sealing strips 17. The associated rear ends. The return pipe acts here as a nozzle that. End members 18 of FIGS. 1, 3 and 5 have hot boiler water flowing into the 35, which acts as a mixing pipe, entrains openings 19, 20, 21, 22, 23, 24 for the connection of the circulation pipe. In this way, the pre-flow lines 11, 12, 13, 14, 15, 16 are raised to the exhaust gas return temperature before the return water collector 25 opens. The outlet openings are from water comes into contact with any boiler walls inner, radial and outer water chambers. In this arrangement, dew is enclosed. Instead of the return currents, deflection chambers 26, 27, 28, directions are avoided by additional mixing front 40 rear end member 18 below the point. Finally, the French 29, 30, 31 attached, which the axial Brennsische patent specification 1237 160 shows a sectional boiler for chamber 1 with the return lines 5, 6, 7, % 9, 10 liquid or gaseous fuels. Connect according to Fig.4.

In this French patent, the cold emerges The hot gases emerge from the axial combustion chimney at 35 from the boiler, and immediately 45 mer 1 into the deflection chambers 26,27,28,29, 30,31 adjacent at 40 the cold return water enters, is diverted and flows through the backs Boiler. Thawing below the dew in 35 currents 5, 6, 7, 8, 9, 10 in one in the front, den With such a structure, the end member32 (Fig. 1) that is receiving the burner can easily be stepped on, arranged, ring-shaped deflection space 33. Here,

The invention is based on the object of redirecting the heating gases again and entering into a rope

Point shortfalls in one with flowing the Vorströmzüge 11,12,13,14,15,16 a, the over

Fuel-fired sectional boilers for Sam outlet openings 19, 20, 21, 22, 23, 24 at the

heating systems of the type specified at the beginning are connected to gas collectors25,

without using additional mixing devices. The connecting hubs of the front and back

the additional construction costs and often moving are denoted by 34 and 35, respectively,

Borrowed parts requiring maintenance, only in F i g. 2 and 3 are particularly important in operation

Due to the internal construction of the sectional heating hot return flow pass 10 as well as the deflection chamber 31

avoid pissy ice cream. exactly opposite the lower connecting hubs 35

This object is to be achieved in the case of a sectional boiler of the return flow, so that the type specified at the beginning of the return flow in this type of water immediately exchanged heat with the hot water, so that the heating gases from the axial gases of the return flow train 10 pass. The combustion chamber stands over .Umenkkammern in the rear end member flowing out through the upper connecting hubs 34 enter the return flows and finally through water with the hot gases of the return an annular deflection space in the front, flow 7 in heat exchange.
Burner-receiving end member to the pre-flow 65 In FIGS. 4 and 5 there are two return-flow trains 9, 10, which are connected to an exhaust manifold via outlet openings in the end member opposite the lower connecting hubs 35, whereas two pre-flow trains 12, 13 opposite the top are, the return connection hubs Ren connecting hubs 34 are arranged.

Claims (1)

Claim: Articulated boilers fired with flowing fuels for collective heating systems with an axial, central combustion chamber, that of adjacent, through inner, radial and outer water chambers formed forward and return currents is surrounded, characterized in that, that the heating gases from the axial combustion chamber (1) via deflection chambers (26 to 31) in the rear end member (18) into the return flows (S to 10) enter and through an annular deflection space (33) in the front, the Burner receiving end member (32) to the pre-flow trains (11 to 16) are guided via outlet openings (19 to 24) in the rear end link (18) are connected to an exhaust manifold (25), the return connection hubs (35) are arranged at least next to a return flow duct (10; 9, 10). 1 sheet of drawings