UA68715A - Heat generator - Google Patents

Abstract

A heat generator has a ventilation fuel block, a combustion chamber, this is arranged of a set of contour radiation thermo-siphons, convection heat exchanger, this is arranged as a set of thermo-siphons, and a mixing chamber connected to the smoke suction unit.

Description

Description of the invention

The invention relates to heat exchange equipment and can be used to produce 2 heating and drying agents in air heating systems of buildings and structures, systems for drying materials and food products.

A heat generator is known (AS USSR Mo13020 OBkl. E2281/18, 1987), which is used in heating systems of industrial enterprises. The heat generator contains a combustion chamber and a gas pipe with heat pipes located in it, the condensing areas of which are connected to the air heating chamber. Protection of the walls of the combustion chamber 710 of this generator is reduced to the use of heat-resistant protective materials and is accompanied by irreversible losses of low-potential heat.

The closest to what I am claiming is a heat generator (patent Российской Федерация Мо2079776, МПК бЕ2281/18, Е23И 15/04), which contains a ventilating fuel unit installed on the front of the combustion chamber, which is made of a set of contour radiation thermosyphons and a package of convective thermosyphons, separated by 12 pipe board.

In the design of the well-known heat generator, the combustion chamber and the convective heat exchanger work under pressure and in the high-temperature zone, which does not exclude the possibility of combustion products getting into the heating agent and the occurrence of high-temperature corrosion. In addition, it is known from the experience of operating heat generators that in closed two-phase systems, over time, a reaction occurs between the intermediate coolant and the body of the thermosyphons with the release of non-condensed impurities. At the same time, the design of the well-known heat generator does not provide for the possibility of repeated degassing, refueling, replacement of thermosyphons that have developed corrosion.

The invention is based on the task of improving the heat generator by separating the combustion chamber from the convective heat exchanger and pumping combustion products with a smoke extractor, which ensures increased reliability and durability of ordinary steels. In addition, the implementation of sections of thermosyphons with a filling head enables repeated degassing. "

The problem is solved by the fact that in a heat generator containing a ventilation fuel unit installed at the front of the combustion chamber, which is made of a set of contour radiation thermosyphons and connected to a convective heat exchanger, made in the form of a package of serially connected contour convective thermosyphons, the new the fact that there is a mixing chamber between the combustion chamber and the convective heat exchanger, which is connected through the convective heat exchanger to the smoke extractor installed on the front of the convective heat exchanger.

In addition, in the most favorable cases of execution: - - the mixing chamber is made in the form of two coaxial channels, in the walls of the inner channel of which a system of holes is formed; 3о - convective thermosyphons are made in the form of a contour convective thermosyphon with a separating ee, partition; - convective and radiation thermosyphons are assembled into packages in the form of separate sections through the sealing gaskets of the thrust mechanism, and each section has a separate filling head; "- the heat generator is made in the form of a closed compact module. WITH

The drawing shows the general appearance of the heat generator (fig. c). The heat generator is made in the form of a closed compact module, consisting of housing 1,

From" heat exchange unit 2, burner 3, fan 4, smoke extractor 5. Heat exchange unit 2 consists of a set of radiation contour thermosyphons (TS) 7, a mixing chamber 8 and a convective heat exchanger made in the form of a package of serially connected contour convective thermosyphons 9. Ventilation 42, the fuel block, which includes the burner Z, is fixed on the front of the combustion chamber b, and the smoke extractor 5 is fixed on the fronts of the convective heat exchanger b. o The radiation circuit thermosiphon 7 is a closed tube cavity, the lower 10 and upper 11 collectors of which are connected by side tubes 12 and together with the fins 13 form the evaporative surface of the TC, and the condensing surface of the TC is the system of tubes 14 installed in the upper collector 15. connected by a system of heat exchange tubes 18, which penetrate the dividing wall 19, which further divides the tubes 18 into evaporation and condensation zones.

Combustion chamber assembly is carried out by welding radiation contour TS 7 along the perimeter of the fins.

Convective contour TCs are collected in a package through sealing gaskets 20 by compression with the help of 29 thrust mechanism 21. c. Independent contour TS 7 and 9 are filled with an intermediate coolant and have a separate individual filling head (not shown in the drawing).

The mixing chamber 8 is two coaxial channels (not shown), while a system of holes 22 is formed in the walls of the inner channel. 60 The heat generator works the following time. Combustion products generated by the burner Z in the combustion chamber 6 give their heat to the intermediate coolant through the evaporative surfaces of the radiation TC 7. Then the combustion products enter the mixing chamber 8, where they are cooled by mixing with the output flue gases entering through the system of holes 22 to a normalized temperature . Then the combustion products give their heat to the intermediate heat carrier through the evaporative surfaces of the tubes of the convective TC 15. The vapors of the intermediate heat carrier, because they are formed in the radiative and convective TC 7, 15, condensing on the surface of the tubes 14, 18, give heat to the heated air, which is pumped by the fan 4, after which condensate flows into the lower collector TS 7, 15.

The cooled combustion products are partially recirculated by the smoke extractor 5 into the mixing chamber 8 and removed from the apparatus. and 5 7 g Z y av y h

Shchi and Yi. and : tt

And TP --

AND

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Fig.

Claims (5)

The formula of the invention 1. A heat generator containing a ventilating fuel block is installed on the front of the combustion chamber, which is made of a set of contour radiation thermosyphons and is connected to a convective heat exchanger, made in the form of a package of thermosyphons, which is distinguished by the fact that a chamber is located between the combustion chamber and the convective heat exchanger mixing, which through the convective heat exchanger is connected to the smoke extractor installed on the front of the convective heat exchanger. 2. The heat generator according to claim 1, which is characterized by the fact that the mixing chamber is made in the form of two coaxial channels, while a system of holes is formed in the walls of the inner channel. from Z. The heat generator according to claims 1-2, which differs in that the convective thermosyphons are made in the form of a contour convective thermosyphon with a separating partition. -- 4. The heat generator according to claims 1-3, which differs in that the convective and radiative thermosyphons are assembled in small packages in the form of separate sections through the sealing gaskets of the thrust mechanism, and each section has a separate filling head. co 5. The heat generator according to claims 1-4, which differs in that it is made in the form of a compact closed SO module. Official bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated microcircuits", 2004, M 8, 15.08.2004. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. Mauki Ukr - . and? (o) (ee) -i - 70 sl 60 b5