CZ59093A3 - Water heating equipment, particularly a hot water heating boiler - Google Patents

Abstract

Hot water boiler, the combustion chamber (2) being surrounded by heat exchangers and at least one plate-shaped heat exchanger (6) being situated below the combustion chamber. In order to reduce the thermal loading of the heat exchangers surrounding the combustion chamber, the combustion chamber is according to the invention accommodated inside a double-walled pipe (4, 5), the outer wall (5) of which is formed at the bottom by a plate-shaped heat exchanger (6), from which the water passes between the two walls of the pipe via many holes (14). <IMAGE>

Description

Heating equipment, especially hot water boiler./·

Technical field

.... *

The invention relates to a device for heating water, in particular a hot water boiler, with heat exchangers surrounding the combustion chamber and with plate-like, parallel heat exchangers arranged below the combustion chamber which are offset to one another to form an S-shaped flue gas outlet the edges have longitudinal water channels which are interconnected by numerous transverse channels extending transversely to the flue gas stream.

BACKGROUND OF THE INVENTION

In known devices of this kind, the combustion chamber is surrounded by plate heat exchangers; a heat exchanger of this type delimits the combustion chamber also in the direction of the dclú. It will be understood by themselves that such shaft exchangers are subject to considerable thermal stress; moreover, the volume of water is comparatively small, making it difficult to control the temperature and the flexibility of the system can be affected.

SUMMARY OF THE INVENTION It is an object of the present invention to overcome these drawbacks and, accordingly, to achieve an apparatus of the above type in order to reduce the thermal stress of the heat exchangers surrounding the combustion chamber and to improve the flexibility of the system and the possibility of their remedy.

lodstata of the invention a woman cauldron inside

[0007] The problem of unloading is that the double-walled screw assembly of the outer wall consists of a plate heat exchanger at the bottom, from which water can be supplied to the shadow of the truck via a large number of small interruptions.

The double-wall pipe opens the possibility to assign a larger volume of water to the combustion chamber, so that the regulation of the water temperature can be made easier and more flexible. For this purpose, thin-walled plate heat exchangers / heat-scraps for water collection are not used, the capacity of which depends on the wall thickness of the double-walled pipe, which can be selected to be of comparatively large size.

For the combustion chamber, a cylindrical tube (inner tube of a double-walled tube) is preferably used, while the outer tube is formed by a wall piece in the form of a holder, which at the bottom passes into the edges of the plate heat exchanger.

The large number of small interruptions for the flow of water into the tube walls has the great advantage that the wall of the tube or the tube located therein swirls. except that it has been found that the sciences in the tube wall can be mixed evenly.

Overview of the drawings

Further details of the invention will be explained by means of the drawings in which an exemplary embodiment is shown

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{*% * · <, Rw r · - * - · * · gyr ^ ^ l-Are - ^ - ehematmchi ^ rsorodnkzi an important part of the heating section of the heat conduction boiler in cross section, cbr. 1 shows the boiler according to FIG. 1 in longitudinal section, FIG. 3 with the line ΖΖ1-Σ11 of FIG. 1,

FIG. 3 shows a modified bullock heating boiler in a longitudinal direction.

the hot water boiler is located in a cabinet indicated by dashed line 1; it has a combustion chamber 2 with an oil or gas burner 2. The outer diameter of the combustion chamber 2 is determined by a cylindrical metal tube 4. This is surrounded from above and at a distance by a letter-shaped wall part 2, the edges of which are connected watertight to the edges of a plate-like, horizontal heat exchanger 6. The metal tube 4 thus forms the inner wall and the wall part 2 ^{with the} heat exchanger 6 the outer wall of the double wall tube which surrounds the combustion chamber 2.

The heat exchanger S is a stacked heat exchanger S, which is formed by a plurality of plate heat exchangers, for example three heat exchangers 6.7 and 3, which are arranged horizontally one above the other and parallel to the longitudinal axis of the double-walled tube. 3 are offset to one another in accordance with FIG. The exhaust gas output is shown at 10. -------

by the number of channels 13, which thus convey the heated water from one longitudinal channel 11 to the opposite longitudinal channel 11.

The water to be heated is fed from below into the longitudinal channel of the heat exchanger 3 and then fed at

IX2Γ ¹ ** Í ^ O ^ u. VG «V3,2X11 TO ~ Q 3 ÚO * '' ** ** ΖΊΧ C \ M t. * f. , ». -, '«» · *. v - * «'2.'V * C0 W * ^e ~ X SVZOwXX'C Q · ~ ι s _f · 7 * 1 P: g XX G -130 * XC · winds double-walled pipes 4 to δ in channel walls 13, the small bores 3 with a diameter of about 4 to about mm, which are marked 14. The water heated in the heat exchangers 6 to 3 therefore flows through the bores 14 arranged in the individual channels 12 in the direction of the arrow 15 into the wall of the double wall tube. Here it is exposed to the combustion chamber, is further heated and then finally gets up through the outlet 16 to the control devices or to the user.

due to small bores 14 it is ensured that muxlaanemu oromicnani trnvaasne wasps 3 leads.ntera

- · r · T ·, .r; r · · * o? In t --- —— “——»; The water supplied under pressure and the water already collected in the wall will desire to be swirled. Accordingly, the combustion chamber 2 is completely surrounded by a considerable amount of water; outwardly, the volume of water is surrounded by the wall piece 2 ^{and the} heat exchanger 6. Since the water is under positive pressure, inside the wall of the tube there is a double wall of reinforcements in the form of reinforcements arranged spaced along the length of the spaloV2.0X ^. ? j rGX G- —3,? T? 67Γ? The outside of the metal tube 8 by the lateral edge regions of the outside. o artery; In addition, a rigid connection between the metal tube and the cvt can be arranged in the muzzle uc

heat exchanger 5, for example by welding.

Comparably large volume of water. the surrounding chamber 2 has the advantage that. alternating temperatures can better control the consumer; for example, the bypass control is considerably quieter, in addition, it is x * X * v *. - * · £ ·. ** ín ·? Tav * a i »o 7OT ~ rrXivn-} 'Ύχ. · · · · · · · · · · · · · · · · · · ·,,, · A · - · - · - · w · w · w · w · w · * -ý hm ♦

It is necessary to mention the ground that z.s. in the drawing, the walls of all elements - with the exception of Fig. 4 -, are shown only as lines; these walls find naturally sufficient wall thickness.

stiffening spacer pieces 19 are welded to the metal tube 4 and radially rigidly connected to the strips 2C abutting on the wall part 2 ''. Also, these strips should be firmly connected to the wall part 2 by the legs after the parts 4,5 have been joined. ^{in the} region of the strips 20, the wall part 2 has recesses 21, the edges of which can be welded to the strips 20. The recesses 21 allow access to the outer webs 20 (for producing the sowing). If the strips 20 are wide enough, the connection or the weld spot 22 can be offset from one another (FIG. 2).

In order to achieve even better utilization of thermal energy, the boiler of FIG. ₄ · • - - X _ X. -. · - _in X - X · ** ** · Ζ ** τ · χ * ·. · * R · -CY ·: · '**. «__ V **>

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It is important that the melt water exiting in the heat exchangers 23,24 at the top of 27 is not supplied to the outlet 16, but that the heated water is supplied in the region of the end of the double-walled pipe, namely at the highest point, while the outlet 16 is located between the two inlet points 23 approximately in the middle on the half-distance of the double-wall or combustion chamber 2 '

However, the rapid flow of water through the heat exchangers 23 * 24 may not occur and the water heated in these heat exchangers 23, 24 may be fed in a measured amount to the total circuit.

In addition, the double-walled pipe is shorter at the bottom than at the top; in order that the combustion gases can preferably flow into the space between the two heat exchangers 7.7 above, the double-walled tube 4.3 is provided at its rear end with an approximately triangular recess 29 (seen in a side view).

Claims (4)

Apparatus for heating water, in particular a heating boiler for a heat conduit, with heat exchangers surrounding the combustion chamber and with plate-to-parallel heat exchangers. of . -, z · z. ~ ss ii ς ** η * ^Λ erp *) '' - p <* r * < 2 * · c * ro r> · * γ * /> • v'r * i -.- 7ar c - tip 'z * ** p —— 9 w'.C k wu * _v m CK' ki - i3 · V * v - -... <-> I-w ÁviXj.iV iw ^ _t Oh J. for the formation of the flue gas in the shape of letter 3, they are offset from one another and have longitudinal water channels at both edges which are connected together by numerous transverse channels extending transversely to the flow stream, characterized by the im tube of the combustion chamber. inside a double wall, the outer wall of which is formed at the bottom by a plate heat exchanger (6) from which water can be supplied by a large number of small bores (14) to the wall of the double-wall pipe. Device according to claim 1, characterized in that it is 3 ryvr.y / -4 / jsc: and they are arranged _ _% Z - Z. vZv Z. .. z - ·. · «». · Z «Z« f λ - rr a * o <- · or »> 1 'T * · * · * 7» · ** · - ^ ··': .- pr »C ΛΛ η * * / · ** 14. r * _t ^{ C • W-- * U S-- .. .w W A4. / -—. Z / »V --1 - + -.-., /. / <k '/ 7 ~ Si? '·. This is because only one row is arranged on each side of the plane. 6. Device according to claim 1, characterized in that the inner side (4) of the double-wall combustion chamber (2) is bounded outwardly and the wall of the truck mounted outside is a creature. a wall element (1) having the shape of a letter U whose arms pointing downwards are connected to the edges of the exchanger (6) tenla. Device according to claim 6, characterized in that the inner wall is a cylindrical body of the nozzle. Device according to claim 1, characterized in that the inner wall (4) is provided externally with stiffeners (17) which are connected to the edge regions of the heat exchanger (6). Device according to claim 3, characterized in that the stiffeners (17) are directed obliquely outwards from the inner wall (4). IC. Device according to claim 1, characterized in that the heat exchanger (6) is connected in the middle practically directly to the inner wall (4) instead of the weld 13). 22. Apparatus according to claim 1, characterized by seeding -ie, ·! In that case, the outer wall (5) is provided with recesses in the region of the strips, the edges of which are rigidly connected to the (20), for example by welding (22).