SU885153A1 - Deaeration column - Google Patents

Description

(54) DELERLATION COLUMN

one

The invention relates to a power system, in particular to the design of a deaeration column, and can be applied in devices for thermal deaeration of water.

Known deaeration column ,. a housing with a supply pipe for supplying a heating medium, inside which there are water distribution, overflow and bubbling plates, adjacent to the last bypass water seal, made in the form of a vertical partition lowered into the pallet. The hydraulic lock is in communication with the mixing chamber of the ejector installed on the pipeline through the water supply 1.

The disadvantage of the column is the low quality of deaerated water and the danger of water being thrown into the turbine during load drops.

The purpose of the invention is to improve the quality of de-aerated water and prevent the discharge of water into the turbine.

To achieve the goal, the deaeration column is equipped with a receiving chamber connected to the heating supply nozzle, the upper edge of one of the vertical walls of which is placed above the plane of the overflow plate, and the other adjoins the additionally installed perforated sheet adjacent the vertical side of the bypass hydraulic seal.

Vertical bulkhead hydraulic bypass valve and the south adjacent to the water distribution. Plate.

Perforations in the sheet can be

10 is made above the hydraulic sump pan

The vertical walls of the receiving chamber can form channels for the passage of steam with the body and the sump of the trap.

On the drawing the scheme of the deaeration column is shown.

In the housing 1 with the nozzle 2 for the supply of the heating medium, water distribution 3, overflow 4 and bubbling 5 plates are placed. The latter is adjacent to the bypass hydraulic lock, made in the form of a vertical partition 7 lowered into the pallet b. The receiving chamber 8 is adjacent to the connecting pipe 2.

30 with perforated sheet 11, adjacent the opposite side to the partition 7, a water distribution plate is attached to the latter. The perforation in sheet 11 is made above the tray b. The vertical walls of the receiving chamber 8 form with the housing 1 and the pallet 6 the channels 12 and 13 for the passage of steam. Under the plate 5 is placed spillway hydraulic 14 Column slave, returns as follows.

The deaerated water is supplied to the water distribution plate 3, from where it is poured as a jets onto the overflow plate 4, pours the sump b and enters the bubbling plate 5, passes along it and drains through the spillway 14 into the storage tank. When the deaerator is fed with steam from the turbine takeoff, this steam is fed through the nozzle 2 into the receiving chamber 8, from where it passes through channel 12 under the bubble plate 5 and passes through the perforation of the latter, forming a highly turbulent bubbling layer in contact with water, in which heat exchange processes take place intensively. Then, the vapor-gas mixture, released during sparging, goes under plate 3, where the vapor component of the mixture condenses on the water jets, ensuring its heating, and the non-condensable Tazy is diverted to the vapor line. When the load is discharged, water is thrown from the deaerator to the turbine by eliminating the fact that between walls 9 and 10 of chamber 8, the stack of housing 1 and pallet 6, channels 12 and 13 are made to allow steam to pass through, which at the time of load relief passes steam generated during boiling water in the tank of the accumulator and which then enters the hydraulic lock and displaces the water from the sump b to the bubble plate 5, which prevents water from entering the sump into the receiving chamber 8. With the inlet into the receiving chamber 8 through the nozzle 2 instead of selective overheated non-aaaaaaaaaaaer constant of water, the latter boils, and the resulting vapor through Boiling

channel 12 is directed under the bubble plate 5, and part of the steam through channel 13 to the hydraulic seal. Water containing corrosive gases is pushed out of the receiving chamber 8 onto the perforated sheet 11, from where it is poured as jets into the pallet 6, and from the pallet onto a bubbling plate 5, where it is processed together with the main stream of deaerated water.

Claims (4)

1. A deaeration column containing a housing equipped with a supply pipe for supplying a heating medium, inside of which a water distribution, overflow, and bubble plate plates are placed alongside the latter bypass valve, made in the form of a vertical partition lowered into a pallet, characterized by the fact that improving the quality of deaerated water and preventing water from entering the turbo Well, the Deaeration column is equipped with a receiving chamber connected to the heating medium nozzle, the upper edge of one of the vertical the walls of which are located above the plane of the overflow plate, and the other is adjacent to an additionally installed perforated sheet adjacent the opposite side to the vertical partition of the bypass hydraulic seal. 2. Column according to claim 1, characterized in that the vertical partition of the bypassing hydraulic trap is adjacent to the distribution plate. 3. The column according to claim 1, distinguished by the fact that the perforation in the sheet is made above the hydraulic seal pan. 4. Column PP. 1 - 3, which means that the vertical walls of the receiving chamber form channels for the passage of steam with the body and the sump of the hydraulic seal. Sources of information taken into account in the examination 1. USSR author's certificate No. 645940, cl. C 02 B 1/10, 1977,