SU1361448A1 - Heat generator - Google Patents

Abstract

Invention m. used for drying building materials, in storage of agricultural products, for heating and ventilation of industrial premises. The purpose of the invention is to simplify the design and reduce the metal content of the heat generator. For this purpose, the combustion chamber is made with double walls forming a closed cavity 8. The cavity is connected to the overflow pipes of 6 and 7 thermosyphons. The fuel is burned in the chamber, heating the inner wall. chambers and heat carrier filling the lower half of cavity 8. The level of heat carrier in the cavity rises, and in thermosyphons it lowers. This ensures complete wetting of the walls of the cavity 8 and an increase in the surface of condensation in the thermosyphons 4 and 5. 2 Il. with (g with Y 00 srig.2

Description

The invention relates to air preheating devices that NtoryT can be used in drying building materials, in agricultural storages, DLE heating and ventilation of production premises, etc.

The purpose of the invention is to simplify the design and reduce metal consumption.

In Fig.1 schematically shows the proposed heat generator, cross section; figure 2 - section aa in figure 1.

The heat generator includes a housing 1, a combustion chamber 2 arranged along its axis, forming a gap 3 with the housing for air passage, and a system of annular two-phase finned tubular thermosyphons 4 and 5 with rings of different diameters. Thermal siphons 4 and 5 are arranged in a checkerboard pattern in the gap 3 between the combustion chamber 2 and the housing 1 and have radial upper 6 and lower 7 diverter pipes. Chamber 2 of the combustion is made with double walls, forming a closed cavity 8 connected to the inlet nozzles 6, and 7 thermosyphons. The camera has a burner device 9.

The heat generator works as follows.

The fuel is burned in the combustion chamber 2 by means of a burner 9. The heat from the flame by means of radiation and from the combustion products of the fuel is transferred by convection to the inner wall of chamber 2 and from it coolant, for example, distilled water filling the bottom half of

bones 8. Water boils. Having formed

g p 5

five

0

0

Shaft from the steam pipe to the mixture, lifting, wets the upper half of the cavity 8, which is not filled with coolant. The steam through the upper nozzles 6 enters the upper part of the air-cooled thermosyphon rings, where it condenses, giving off heat to the heated air. Condensate p about the rings flows down into their lower part and through the lower pipes 7 enters the cavity B.

At half a level, the coolant level rises, and in the rings of thermosyphons it drops. This ensures complete wetting of the walls of the cavity 8 and an increase in the surface of condensation in the thermosyphons A and 5. Under the action of a fan (not shown), the air washes the finned rings of the thermosyphons 4 and 5 and the already heated is discharged to the consumer.

Claims (1)

Invention Formula A heat generator comprising a housing, a combustion chamber placed along its axis, forming a gap with the housing, for the passage of air and a system of annular two-phase tubular thermosyphons with rings of different diameters arranged in a checkerboard pattern in the gap between the combustion chamber and the housing, and having radial upper and lower flow nozzles, characterized in that, in order to simplify the design and reduce metal consumption, the combustion chamber is made with double walls forming a closed cavity connected to the flow nozzle m Thermosiphons. 9uz.1 Editor N. Bobkova Compiled by Y. Martinchik Tehred L. Serdyukova Order 6216/43 Circulation 636 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Proofreader A. Obruchar