RU2042082C1 - Heating boiler with catalyzer - Google Patents

Abstract

FIELD: furnace devices. SUBSTANCE: built in walls of after-burner chamber are detachable modules made of cassettes formed by linear-flow active members mounted in them in inclined position; arranged under roof is heat-control shield with shut-off adjusting member. EFFECT: enhanced reliability. 2 dwg

Description

 The invention relates to furnace devices of hot water heating boilers of small boiler houses.

 Known heating boiler with a catalyst containing a circulating water circuit and a combustion chamber with side walls and a vault.

 The disadvantage of the boiler is that the remote unit for gas neutralization works for a considerable time a year in suboptimal temperature conditions, which reduces the efficiency of afterburning of volatile combustible substances or requires an increase in cost of the installation due to autonomous means for controlling the temperature at the inlet to the catalyst. Such means of temperature control may include bypassing part of the high temperature gases from the furnace in addition to convective heating surfaces of the boiler, reducing the area of convective heating surfaces of the boiler with reconstruction of the boiler itself or installing an autonomous burner in the pipe leading to the catalyst.

 The purpose of the invention is to increase energy efficiency and simplify the structural, layout and operational data of the boiler.

 This goal is achieved by the fact that in the boiler with a catalyst containing a circulating water circuit and a combustion chamber with side walls and a roof, an afterburner is additionally made in the combustion chamber, communicated with the combustion chamber by means of windows in the side walls and separated from it by radiation heating surfaces equipped with flap plates and connected to the circulating water circuit, and under the arch there is a thermostatic screen with a locking and regulating body, also connected to the pointer annomu contour, and the catalyst is in the form placed in the side walls of the afterburning chamber modules prefabricated cassettes formed obliquely installed in them linearly wetted active elements.

 Figure 1 shows a cross section of a heating boiler for catalyst modules; figure 2 section aa in figure 1.

 The heating boiler contains a circulating water circuit 1 and a combustion chamber 2 with side walls 3 and a roof 4. In the combustion chamber 2, an afterburner 5 is additionally made, connected to the combustion chamber 2 by means of windows 6 in the side walls 3 and separated from it by radiation heating surfaces 7 equipped with flap plates 8 and connected to the circuit 1. Under the arch 4 there is a thermostatic screen 9 with a shut-off and regulating body (not shown in the drawings), also connected to the circuit 1, and the catalyst is made in the form Shackle afterburning chamber walls 5 modules of prefabricated cassettes 10 formed therein of inclined linearly wetted active elements 11.

 The cassette 10 for laying the active elements 11 of the catalyst is made of light metal elements, for example a small corner and a bar. The entire catalyst consists of separate mounting modules, for example four, two on each side of the boiler. The length and height of the module are provided less than the corresponding size of the windows 6 in the wall 3 of the boiler by the linear temperature expansion of the cartridges 10.

 The boiler with a catalyst operates as follows.

 The flue gases from the combustion chamber 2, under the action of convective forces, rush upward into the afterburning chamber 5, hit the upper (ceiling) screen 9, wash it, cooling as a result to a temperature optimal for the operation of the catalyst. To control the degree of gas cooling is provided by changing the flow rate of water flowing through the upper thermostatic screen 9, using a valve on the line of entry into the screen. It is understood that the hydraulic circuit of the boiler provides for parallel connection of the upper screen 9 to the circulation circuit 1. Then the gases are turned down under the action of the active jet and smoke exhaust and from the oncoming flows along both side walls of the afterburner 5 they enter the catalytic cassette 10. The cassette 10 is washed gases from both the inner and outer sides of the active elements 11, because their laying in cartridges 10 is carried out at such distances from each other that ensure the equality of aerodynamic drags when gases move through the elements 11 and between them. The gas temperature in this case rises in accordance with the catalytic oxidation reaction of high molecular weight hydrocarbons. Once in the convection shaft after the catalyst, the gases fall under the influence of the exhaust fan, washing surfaces 7, and enter the burs, and then either into the economizer or directly into the exhaust fan.

Claims (1)

 A HEATING BOILER WITH A CATALYST, containing a circulating water circuit and a combustion chamber with side walls and a vault, characterized in that the combustion chamber is additionally provided with an afterburner communicating with the combustion chamber by means of windows in the side walls and separated from it by radiation heating surfaces provided with plates - with plugs and connected to the circulating water circuit, and under the arch there is a thermostatic screen, also connected to the specified circuit, and the catalyst is made in the form of located in the side walls of the afterburning chamber of modules from prefabricated cassettes, formed by linearly flowing active elements inclined in them.

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