SU1567862A1 - System for cleaning boiler water-steam path - Google Patents

Abstract

This invention relates to a power system. The purpose of the invention is to increase the efficiency and effectiveness of cleaning. The system contains inlet and outlet headers, fitted with coaxial inserts with ribs that divide headers into compartments of various sizes, and pipelines for supplying and discharging the cleaning agent. The surface of the inserts in the smaller compartments is perforated, the ribs are installed with a gap at the wall of the collectors. In addition, the inserts have segmented diaphragms located on the side of the supply and discharge pipelines of the cleaning agent. 1 il.

Description

The invention relates to a power system, mainly to cleaning the internal heating surfaces of the boiler from contamination, and can be used in various sectors of the national household.

The purpose of the invention is to increase the efficiency and effectiveness of cleaning.

The drawing schematically shows the proposed system.

The system consists of supply pipelines 1 and outlet 2 of the cleaning medium, inlet 3 and outlet 4 collectors, to which groups of pipes 5, 6 and 7 of the water-steam path are connected. Cylindrical inserts 8 and 9 placed in the collectors coaxially to form an annular channel 10 of the input collector and an annular channel 11 - output are installed in the inlet and outlet collectors. The annular channels 10 and 11 have at least one partition wall in the inlet manifold 12 and outlet 13, respectively. These partitions in the form of ribs mounted on cylindrical inserts 8 and 9 with an annular gap 14 at the inner walls of the collectors. The partition 12 divides the annular channel 10 of the inlet manifold 3 into a smaller 15 and larger 16 compartments, the partition 13 also divides the annular channel 11 into a smaller 17 and larger 18 compartments. The size of the smaller and larger compartments is made by the GNKI, so that if one partition is installed in each channel, the cross-sectional area of the water-vapor pipe of the smaller compartment should be half as large as the cross-sectional area of the larger compartment.

The upper half of the cylindrical insert 19 in the smaller compartment is perforated. In the lower half of both collectors 3 and 4, in the zone free of pipes 7 of the water-vapor tract, on the connection side of supply 1 and discharge 2 steam lines, there are segment diaphragms 20 installed with a gap 21 relative to the bottom walls of the collectors, which form compartments 22 separation. Upper half of the cylindrical insert 9 in the output collection

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A torus located in the separation compartment 22 may also be made perforated.

The device works as follows.

Superheated steam with the addition of oxygen and activating substances is supplied via steam line 1 to cylindrical insert 8. Through holes in the upper half of the 19th insert, steam is supplied to a smaller compartment 15 and then to a group of water vapor pipes 5 connected to it, from where steam enters a larger compartment 18 of the annular channel 11, and then into the group of pipes of the water 6 tract. Then, from the compartment 14, the steam passes through group 7 and through the holes in the upper part of the insert 19 enters the exhaust steam pipe 2. Part of superheated steam with the addition of oxygen and activating ve The substance enters compartment 16 from compartment 15 through the gap 14, allows to increase the temperature of steam and the concentration of oxygen and activating substances in the steam before entering the group of pipes 7 of the water-steam tract. In addition, the stream of steam passing through the gap 14 discards solid particles separated from the pipes being cleaned, through the gap 21 into the separation compartment 22 Perforation in the upper part of the cylindrical insert 9 in the separation section 22 of the output collector also contributes to the separation of solid particles My system knot is cleaned before cleaning the steam boiler and dismantle south after its completion

The use of the proposed device will improve the cleaning efficiency, by maintaining the optimal concentration of oxygen and activating substances, as well as the mass velocity of steam in the pipes, increase reliability by reducing the solids content in the steam that is directed to the last group of water vapor pipe and the exhaust steam line.

Claims (1)

Invention Formula A system for cleaning the water-vapor path of the boiler, containing inlet and outlet headers, a partition dividing the headers into compartments of various sizes, pipelines for supplying and discharging the cleaning agent, which in order to increase the efficiency and efficiency of cleaning, the headers are provided with shut off from one end and placed coaxially collectors cylindrical inserts with segmental diaphragms, the partition is made in the form of ribs mounted on the insert and installed with a gap at the wall of each the collector, with the insert in the smaller compartment made perforated in the upper part, the open ends of the inserts are connected to the pipes for supplying and discharging the cleaning agent, and the segment diaphragms are installed near the open ends of the inserts with a gap at the bottom wall of each collector / J 2 P 1S, 8 Yu / Z , U, tt 19 15