SU640976A2 - Vacuum deaerator - Google Patents

Description

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The invention relates to thermal pegasation of water and can be used in deaeration plants of power plants and boilers.

From the main auth. St. No. 257511 vacuum peerators are known, on which different media are used as heating agent, steam or superheated water relative to the pressure in the deaerator, containing a body, jet plates installed in it, a bubbling sheet, a vertical wall between the deaeration and evaporative compartments. Steam or superheated water is supplied to the evaporative compartment. A portion of the superheated water in the evaporative compartment is converted to steam, which is then fed under a bubbling sheet.

The drawback of the known deaerator is the reduced cost-effectiveness and quality of degassing, due to the intense condensation of steam in the evaporation compartment on the wall separating the evaporation compartment. Temperature difference between

deaerating and evaporative compartments: it is several tens of degrees, therefore the temperature of the vertical wall cooled by the deaeration compartment is lower than the temperature of the compartment in the evaporation compartment. Steam supplied to the evaporative compartment, or formed from superheated water, coming into contact with the wall, condenses and does not participate in water degassing.

The aim of the invention is to increase the efficiency of the deaerator.

The goal is achieved by the fact that the vertical wall separating the evaporative compartment is thermally insulating, for example, hollow.

The drawing shows the vacuu |; | ny deaerator.

The vacuum deaerator comprises a housing 1, jet plates 2 installed therein, a bubbling sheet 3, a vertical wall 4 between the deaeration compartment 5 and an evaporating compartment 16, on the heat-insulating, for example, hollow of two parallel sheets.

During the operation of the ceaerator, the heating agent (steam or overheated heat) enters the evaporative compartment 6. Due to the fact that wall 4 is heat insulating, steam does not condense, the bog sheet 3 passes under the bar and then fully participates in the degassing of water in the deaeration compartment 5 .to

The vacuum deaerator, in which the dividing partition between the deaeration and evaporative compartments is heat insulated, makes it possible to almost completely eliminate the condensation

You steam

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Deaarirobonne water

vaporization on the partition wall and, thereby, significantly improve the quality of water degassing and cost-effective operation of the planting unit.

Claims (1)

Invention Formula Vacuum deaerator on the main ed. St. No. 257511, characterized in that, in order to increase the efficiency of the deaerator, the vertical wall separating the evaporation compartment is heat insulating, for example, hollow.