SU1486701A1 - Vacuum deaerator - Google Patents

Description

The invention relates to a power system and industrial heat engineering. The purpose of the invention is to improve the quality of deaeration. Deaerated water through the water dispenser 2 is fed into the jet compartment 4 and further to the bubbling sheet 5. Superheated water through the water dispenser 3

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enters the boiling chamber 8, from where the steam is supplied under the sheet 5 and the perforated portion 15 of the tray 10. In the portion 15, the non-boiling liquid coming from the chamber 8 through the gap 13 is treated with steam, which promotes the release of gases from it, which are removed through the nozzle 16 inkjet compartment 4 and further into the vapor line. The water treated at section 15 is drained through the overflow device 14 to the lower part of the body, where it is mixed with deaerated water. Due to the intensive treatment of the non-boiled part of the overheated water, the quality of deaeration of the water withdrawn from the deaerator increases. 1 il.

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1486701

The invention relates to a power system and industrial heat engineering and can be used for deaeration of feed and make-up water in installations that use superheated water as a heating medium.

The aim of the invention is to improve the performance and quality of deaeration.

The drawing schematically shows a de- ._ aerator.

The deaerator contains the water distributors 2, 3 of cold and overheated water, the jet compartment 4, the bubbling sheet 5 with retaining threshold 6, the overflow device 7, the chamber of the 8th century with the steam overflow pipe 9 adjacent to the sheet 5 and the pallet 10 In case 1 there is a vertical partition 11, which separates the bubble compartment 12 in it and forms a gap 13 with the pallet 10, less than the height of the retaining threshold 6, as well as an additional overflow device 14. The portion 15 of the pallet 10 between the partition II and the device 14 is made rforirovannym and bubble jet 4 and 12 co compartments 25 obscheny between a pipe 16.

The deaerator works as follows.

The deaerated water is fed through the water dispenser 2 into the jet compartment 4 and goes further to the bubbling sheet 5. 30 Superheated water through the water dispenser

3 enters the boiling chamber 8, from where the steam is supplied through the steam transfer pipe 9 under the sheet 5 and the perforated section 15 of the pallet 10, and the non-boiled liquid is collected in the pallet 10 and after 35 the gap 13 is sent to section 15. On the latter, this liquid is subjected to intensive steam treatment, which contributes to its turbulence and the release of dissolved and dispersed gas, which from the dd compartment 12 through the nozzle 16 together with the transit steam enters the jet compartment

4 and a line of steam. Deaerated

in section 15, water is discharged through the spillway, device 14. Cold water treated on sheet 5 is also discharged through device 7.

Thus, the organization of a perforated area in the pan, an additional drainage device and a bubbling compartment allows for a deep deaeration of the non-boiled part of superheated water without increasing the height of the liquid layer on the bubbling sheet. The recess of the partition 11, installing it with a gap 13, prevents the premature breakthrough of steam from the chamber 8 into the jet compartment 4, directs the main part of the non-boiling water along the perforated section 15 and thereby ensures stable operation of the sheet 5.

The organization of separate deaeration of cold and superheated water allows to reduce the resistance to the passage of steam through a layer of deaerated liquid, deepen deaeration and increase the maximum performance of the deaerator.

Claims (1)

Claim Vacuum deaerator containing water dispensers of cold and overheated water located in the housing, jet compartment, bubbling sheet with retaining threshold, water discharge device, boiling chamber with steam passing pipe and adjacent to the bubbling sheet pallet, characterized by the fact that, in order to improve performance and quality In the case there is an additional vertical partition, which forms a bubbling compartment with its wall and is installed relative to the pallet with a gap smaller than the height of the retaining threshold, and additional A portable spillway device adjoining the pallet, the pallet section between the additional spillway device and the partition being made perforated, and the jet and bubbling compartments are connected to each other by a branch pipe.