SU1223884A1 - Cooker with indirect heating - Google Patents

Description

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The invention relates to heating equipment, in particular, to cooking pans with indirect boilers, in which food is cooked using steam-water jackets, and can be used in catering establishments.

The purpose of the invention is to reduce the heating time of the cooking vessel by reducing heat losses to the environment.

In Fig.1 schematically shows the proposed food boiler with indirect heating, a longitudinal section; figure 2 - section aa in figure 1

The indirectly heated food boiler comprises a housing 1, a cooking vessel 2 inside it, forming a steam jacket 3 with the housing 1, and a steam generator 4 located under the bottom of the housing. A vertical cylindrical shell 5 is installed between the body 1 and the cooking vessel 2, the edges of which form with the upper edge of the body 1 a gap 6 for steam passage and with a bottom of the body 1 - a gap 7 for condensate overflow to the steam generator 4. The distance from the cooking vessel 2 the shell 5 is twice the distance from the shell 5 to the body and is 12 mm and 6 mm, respectively. The shell 5 can be made corrugated. At the bottom of the body there is mounted a hollow cylinder 8 rigidly bonded to it, while it is located in the housing 1 so that the upper edge is located below the lower edge of the cylindrical shell 5, forming with it and with the housing 1 a hydraulic valve, pressure gauge 9, double, safety valve 10 , filling funnel 11, valve 12 for blowing air, blowing port 1J, heating elements (heaters) 14.

Indirect heating boiler works as follows.

 Initially, the digester is purged, for which 4J

heating elements 14 and boiling water, sajniTyui into steam generator 4. Steam resulting from boiling water rushes to the surface of the cooking vessel 2 and forces air from under the cooking vessel 2 into the zone formed by the shell 5 and the cooking vessel 2, and then through the gap 6 for the passage of steam into the zone formed by the shell 5 and the housing 1, and through the purge fitting 13 of the valve 12 is vented to the atmosphere. After purging is completed, the valve 12 is closed and in the steam line

3 sets the operating temperature of the steam.

The steam comes from the steam generator 4 and, condensing, transfers heat to the contents of the cooking vessel 2. The condensate formed on the wall of her cooking vessel 2 flows into the cylinder B and through it enters the steam generator 4. Discharge — condensate flows on the walls of the housing 1 and shell 5 to the bottom

part of the housing 1, due to the presence of a gap 1 for the flow of condensate, fills the space between the housing 1 and the cylinder 8, creating a hydraulic valve with the bottom of the housing .1, the shell 5 and the cylinder 8.

As the condensate accumulates in the space between the housing 1 and the cylinder 8, it flows through the upper edge of the cylinder 8 and, mixed with the total flow of condensate formed by the condensation of steam on the walls of the cooking vessel 2, enters the steam generator 4.

Use of the proposed boiler

compared to the known boilers, it reduces the heating time of the cooking vessel.

due to heat loss to the environment. In the case of the corrugated shell 5, the heating time of the cooking vessel is further reduced by

above heat exchange.

Compiled by G. Yarho Editor S. Lisin Tehred I. Popovich

Order 1852/2 Circulation 468 Subscription

VIIIGGI State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab, 4/5

...- ,, .- ---- ™ ...., -...... - .-- ™ .------ - ---- - .- .-- ----------- Production and printing company. Uzhgorod, Projecto st., - 4

Proofreader V.Sinnets

Claims (2)

1. A INDIGENOUS HEATING BOILER containing a housing, a cooking vessel located inside it with a steam-water jacket formed between it and the housing, and a steam generator located under the housing bottom, characterized in that, in order to reduce the duration of heating of the cooking vessel by reducing heat loss in environment, the boiler is equipped with a vertical cylindrical shell installed in a steam-water jacket with a gap between its edges and the upper edge of the body and it: bottom, fixed to the bottom of the body a hollow cylinder connected with it, while the latter is located in the housing so that its upper edge is higher than the lower edge of the cylindrical shell, forming a hydraulic shutter with it and the housing. 2. The boiler according to claim 1, characterized in that the cylindrical shell is made corrugated. 1 223884