DE1904190U - DEVICE ON BOILERS TO AVOID TEMPERATURE STRATIFICATIONS AND INCREASE WATER CIRCULATION. - Google Patents

Description

Pa. Hans Viessmann KGr., Kesselwerk, Allendorf / Eder

Installation on boilers

to avoid temperature stratification and to increase the water circulation

The invention relates to a device on boilers, with the liquid layers according to the temperatures can be avoided in the boiler, which come about because the warm flow water is removed at the top and the cold return water is supplied below, and with which the water circulation is also strengthened and directed.

Are known in particular for flame tube and flame tube gas tube boilers Water-bearing boreholes running through the flannel pipe, in which water circulation is achieved through heating with flue gases is caused. This known arrangement of water-carrying pipes has the disadvantage that they are not deep are pulled down enough into the bottom part of the boiler that the Ratio of pipe cross-section and pressurizable cold water surface is too small that the water speed in the .Bore too low. 1 hour and that the inflow and outflow conditions from the inlet to unfavorable flow directions within ..

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German * JO »Wton» .l

36c, 10/07. 19O # 190. Hans Viessmann

K.G., Kesselwerk, Allendorf / Eder. | A-

direction to boilers to avoid Λ y -jj f; '·

of tempera deer teachings and to er- · * ·· ^1ιυτ

increase in water circulation. 1. 2. 62.

V 15 737. (T. 5; line 1)

The invention results accordingly from the task of avoiding the disadvantages inherent in the known circulation pipe arrangements and, in modern, highly stressed boilers, of completely sucking off the corrosion-promoting cold water layer at the deepest points of the boiler and the necessary water circulation between the individual water chambers in these boilers :! to reinforce and to steer as far as possible "

This object is achieved according to the invention in that a connection channel located on the boiler base is widened in the form of a nozzle from the outer to the inner shell space in the area of the outer space towards the return mouth, and that the cross-section (s) of the upper connection channel (s) is / are at least twice as large like that of the lower connecting channel, whereby a high speed is achieved in the suction nozzle and thus a high suction effect on the lower boiler area. :

Due to the staggered arrangement of the lower and upper connections of the shell spaces there is an influence on the flow direction of the heated rising water and thus the Circulation in the boiler. To increase the circulation v; irlcun; i the boiler return connection is directly under the opening of the Extraction opening, which can be made, for example, from particularly; Tubes or webs can consist, arranged .:;

In the drawing is an exemplary embodiment, eggs; according to the invention Facility shown. ; / J.,

10/07. 1904190. Hans Viessmann KG, boiler plant. Allendorf / Eder. | Means to boilers for Verateidung Λ ii O (\ of Tcmperahirschichtungen and ER '* · "· ^Jt the Wasserzirkulatfon hohung I. 2. 62. V 13 737 (T. 5;. Z. 1)

131 * -L

In this illustration, the

Pig »1 shows a vertical longitudinal section through the boiler; Pig. 2 shows a section along the line I-I in Pig. 1;

Pig. 3 shows a longitudinal section through the boiler with the combustion side arranged suction opening and upper connection channel arranged on the exhaust side, and

Pig. 4 shows a section along the line III-III in Pig. 3.

The boiler shown in Fig. 1/2 has two water jackets 9/10 and an Erennkaramer 11.

The return pipe 1 opens in the area of the boiler bottom 2/4, directly above which the connecting channel 7 is arranged with a nozzle-like enlargement 3. Towards the top are the both jacket spaces connected by channels 5/6. The detector is inserted at the opening 12 and the smoke gas is extracted through the annular space 13 and the opening 14.

Pig. 3/4 show a tank, which in principle is of the same design, in which only the inlet, _outlet and connection channels have a different arrangement, which, however, has the same mode of operation as the pole. .

The cold return water enters the boiler at 1 below and normally tar spreads the whole kettle wafer 2, 4 off. As soon as the heating starts, the temperature increases Water over the connecting pipes 5> 6 upwards and it

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there is a strong thermal ^> cg, so that through the Sinsaug-

10/07. 1 904 190 Hans Viessmann KXi., Boiler plant. Allendorf / Eder. I Equipment on boilers to avoid λ y ii f>. of temperature diiditutions and 'ur increase' * " 'increase of the water circuration. I. 2. 62.

pipe 7 sucked the cold water layer of the boiler bottom will.

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Due to the staggered arrangement of this AbspU tube 7 with respect to the upper connecting tubes 5, 6, a cross flow (see arrows 15, 16, T ⁷ ) of the rising V / nrmwassers and thus a uniform cooling of the heating surfaces is achieved.

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Claims (2)

SCHOTZAUSPHÜCHE ^ 1. Hot water boiler with nested, equiaxed urd above and below water-bearing with each other connected water jackets, the interior of which delimits the combustion chamber and at a distance for the purpose of forming a heating gas to it from the outside 1st, characterized in that in the boiler below above the here arranged return water connection nozzle (1) a connection channel (7) from the outer (9) to the inner (lo) Water jacket provided and inside the outer water jacket to the junction of the return water connection piece towards nozzle-shaped widened (3) and that in the channel above between the water jackets one or more Connection channels (5,6) opposite the lower connection channel arranged offset and in cross-section at least twice as large as that of the lower connecting channel are. 2. Boiler according to claim 1, characterized in that the return water connection piece (l) is coaxial to the lower connecting channel (7) and is connected to the outer water jacket at the bottom outside 3 · Boiler according to claim 1 or 2, characterized in that that in the channel below several connecting channels one behind the other in the direction of the boiler axis are arranged.