UA5414U - Heat generator - Google Patents

Abstract

The heat generator has thermo-insulated combustion chamber with hatch, heat plate, fire grid and ashpit, system for air feeding and channel for combustion products discharge. The system for air supply has a fan and collector with air nozzles, those are placed in the upper part of the combustion chamber in radial positions at angle 45° to vertical, with inclination to inside of the chamber, and the channel for the combustion products discharge is placed between the air nozzles with inlet above the zone of burning, and at the outlet the channel is provided with ejector branch pipe connected to the collector.

Description

The useful model refers to non-traditional energy with the use of renewable bio-raw material (biofuel), and can be used in technology for the agro-industrial complex.

Well-known heat generators for use in agricultural production for heating livestock premises, for drying fodder and agricultural products that run on oil fuel or natural gas, series tg.

IDegtyarev H.P. Directory of machines and equipment for animal husbandry. 2nd ed. processing and extra - M.;

Agropromizdat 1986 - 224s)| They consist of a case, a heat exchanger with a chimney, a fan with an electric motor, a pump with a nozzle, a protective case and a system of automatic regulation and control of the installation. Disadvantages of such heat generators are the use of expensive petroleum fuel or natural gas, complexity and high cost.

The boiler for burning firewood, lump peat and wood waste is the closest in terms of features to the proposed heat generator | Patent of Ukraine Me50214A, E2481/02, 15.10.2002, which contains a fuel chamber with a hatch for loading fuel, a window for the exit of combustion products, a grate with a box of primary air, an ash tray, a combustion chamber and a box of secondary air with nozzles. Disadvantages of this installation - the air supply system does not take into account the burning characteristics of baled dry plant residues, which does not allow the complete burning of such fuel with the maximum efficiency.

The basis of a useful model is the task of creating such a heat generator, in which the design of the combustion chamber and the air supply system leads to the maximum use of the energy potential of renewable fuel - dry baled plant residues.

The task is achieved by the fact that in the heat generator, which contains a heat-insulated combustion chamber with a hatch, a heat plate, a grate, an ash tray, an air supply system, and a channel for the output of combustion products, according to a useful model, the air supply system consists of a fan, a collector and air nozzles , which are placed in the upper part of the combustion chamber radially at an angle of 45" to the vertical with an inclination inside the combustion chamber, and the outlet channel of the combustion products is located between the air nozzles with the inlet above the combustion zone of the lumped fuel, and at the outlet the channel is equipped with an ejector nozzle, which is connected with the collector of the air supply system.

The location of the air nozzles in the upper part of the combustion chamber radially at an angle of 45" and with an inclination towards the inside of the combustion chamber best corresponds to the process of full combustion of such fuel - since the air is supplied directly to the combustion zone, at the same time it is heated in the upper part, without complex heat exchange devices, carrying out post-combustion incompletely burned particles.

The location of the outlet channel of combustion products in the upper part of the chamber with its entrance above the combustion zone reduces the heating of the walls of the chamber in the upper zone and the hatch, and the ejector nozzle at the outlet of the channel allows fresh air to be introduced into the stream of combustion products, if necessary, for their complete combustion or dilution during direct use in drying units. The essence of the useful model is explained by the drawing, where Fig. 1 shows the heat generator, a side view, and Fig. 2 shows its section along the line A-A.

The heat generator contains a frame 1, a heat-insulated combustion chamber 2 with a sealed hatch is located on it

With, placed inside the heat-insulated combustion chamber 2, a heat plate 4, a grate 5, an ash tray 6, an air supply system to the combustion chamber, which consists of a fan 7, a collector 8 and air nozzles 9, a channel for the output of combustion products 10 with an ejector nozzle 11.

The heat generator works as follows

The hatch 3 is opened. A bale of dry plant residues is loaded onto the grate 5 in the combustion chamber 2 and set on fire. With stable fuel burning, the hatch C is hermetically closed and the fan 7 of the air supply system is turned on, which, through the collector 8 and air nozzles 9, injects air from above to the side into the combustion zone. Combustion products are removed from the chamber through channel 10.

In the case of direct use of combustion products in drying units to reduce their temperature at the outlet of the channel 10, they are diluted with air from the collector 8 through the ejector nozzle 11.

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Claims (1)

A heat generator containing a heat-insulated combustion chamber with a hatch, a heat plate, a grate and an ash tray, an air supply system, 1 combustion product outlet channel, which is characterized by the fact that the air supply system includes a fan and a collector with air nozzles, which are located in the upper part of the combustion chamber radially at an angle of 457 to the vertical with an inclination towards the inside of the chamber, and the outlet channel of the combustion products is located between the air nozzles with the inlet above the combustion zone, and at the outlet the channel is equipped with an ejector nozzle, which is connected to the collector.