SU798428A1 - Heating boiler section - Google Patents

Description

(54) SECTION OF THE HEATING BOILER

I

This invention relates to the field of boiler building.

The sections of the heating boiler are known, comprising a housing with radiation and convective parts, communicated by their entrance sections with the dispensing chamber 1.

The disadvantage of these devices is the low reliability of their operation due to the failure of the radiation section of the section.

The purpose of the present invention is to increase reliability by increasing the flow rate of the heat transfer fluid through the radiation portion of the section.

The goal is achieved by the fact that the ratio of the flow areas of the entrance sections of the convective and radiation parts is 0.5-1.0. A change in this ratio can be achieved, for example, either by changing the clamping length separating the convective part of the section from the radiation section, or by using protrusions made on the inner surface of the convective part.

The drawing shows a section of the boiler, a general view.

The section includes a housing 1 with a dispensing chamber 2 in which an inlet 3 is made, connected to the radiation part 4 by convective parts 5 and an outlet 6.

During boiler operation, the water enters the dispensing chamber 2 through the opening 3 and, depending on the ratio of the flow sections of the channels 4 and 5, is distributed along them and goes out into the opening 6.

With heat loads corresponding to the operation of heating boilers and equality of flow sections 4 and 5, the flow rate of water through the radiation channel corresponds to the minimum value, below which a sharp increase in the temperature of the radiation channel is observed,

In the case of flow cross sections 5 and 4 less than 0.5, the flow rate through the convective part of the section becomes less than the minimum flow value, which also leads to an increase in wall temperature and, consequently, to a decrease in reliability.

The proposed construction of the boiler section allows to reduce the wall temperature, which ensures reliable operation when

increased by 15-20% of thermal loads and increases the efficiency of the section and its durability at low and medium loads.

Claims (1)

Invention Formula The section of the heating boiler, containing a housing with radiation and convective J / / parts communicated by their entrance sections with the dispensing chamber, characterized in that, in order to increase reliability, the ratio of flow sections of the entrance sections of the convective and radiation parts is 0.5-1.0 Sources of information taken into account during the examination 1. USSR Author's Certificate No. 146015, cl. F 24 N 1/32 ,. 1961.