RU173406U1 - INSTALLATION FOR WATER DEAERATION - Google Patents

Abstract

The utility model relates to the field of heat power engineering, in particular, to deaeration plants, and can be used in water treatment plants of thermal power plants, boiler plants, and heating networks. The technical result is achieved by the fact that the installation for deaeration of water containing a deaerator tank with a deaeration column, in which a counterflow nozzle and a leveling grate installed under the counterflow nozzle, as well as a source water supply pipe to a counterflow nozzle, a heating steam supply pipe to a deaeration column, a heating steam supply pipe to a deaerator tank connected to a bubbler steam distribution manifold, a gas outlet pipe from a deaeration pipe and the pipe outlet of deaerated water, according to this utility model, further comprises a device for uniform distribution of liquid , which is installed in the deaerator tank, while the specified device is made in the form of perforated partitions dividing the deaerator tank into sections. 1 ill.

Description

The utility model relates to the field of power engineering, in particular to deaeration plants, and can be used in water treatment plants of thermal power plants, boiler plants and heating networks.

Known thermal deaerator, containing a deaeration column mounted on the deaerator tank using a transition fitting, and a bubbler device placed in the tank, made in the form of a steam distribution manifold with sparging pipes attached to it, while the steam distribution manifold is equipped with a nozzle located directly in the steam volume of the deaerator under the adapter and coaxially with it, and the pipe is additionally equipped with perforation and a throttle device (patent RU 2274803, IPC F22D 1/50 , published on 04/20/2006).

The main disadvantage of this deaerator is the complexity of the design of the bubbler device, made in the form of a steam distribution manifold with attached bubbler pipes.

The prototype is a water deaeration unit containing a deaerator tank with a deaeration column, in which a counter-current nozzle and an equalizing grate installed under the counter-current nozzle are placed, as well as a source water supply pipe to a counter-current nozzle, a turbulent flow nozzle mixer and a steam supply pipe to the source water, embedded in the source water supply pipe, the heating steam supply pipe to the deaeration column, the heating steam supply pipe to the deaerator tank, connected with bubbling steam distribution manifold, gas outlet pipe from the deaeration column and nozzle withdrawal of deaerated water (RU Patent No. 162574, IPC F22D 1/50, published 06.20.2016).

The main disadvantage of the prototype is the relatively low efficiency of water treatment due to uneven distribution and back mixing of the liquid in the deaerator tank.

The objective of the utility model is to develop the design of the installation for deaeration of water, which eliminated the above disadvantages of the analogue and prototype.

The technical result is to increase the efficiency of water purification by ensuring uniform distribution of fluid in the deaerator tank and reducing back mixing.

The technical result is achieved by the fact that the installation for deaeration of water, containing a deaerator tank with a deaeration column, in which there is a counter-current nozzle and an equalizing grate installed under the counter-current nozzle, as well as a pipeline for supplying source water to the counter-current nozzle, a pipeline for supplying heating steam to the deaeration column, a heating steam supply pipe to the deaerator tank connected to a bubbler steam distribution manifold, a gas outlet pipe from the deaeration column and a pipe The drainage of deaerated water, according to the present utility model, further comprises a device for uniform distribution of liquid, which is installed in the deaerator tank, said device being made in the form of perforated partitions dividing the deaerator tank into sections.

Thus, the proposed installation for deaeration of water, which allows for the removal of carbon dioxide and oxygen in dissolved and dispersed form, consists of a deaeration column with a counterflow nozzle and a deaerator tank, in which a bubbler steam distribution manifold is placed, the deaerator tank being divided into sections by perforated partitions, in this case, gas desorption is carried out in the nozzle layer during countercurrent flow of water and heating steam, as well as in the deaerator tank during sparging, water with heating bubbles Macaw and additional desorption of gases during the passage of water through perforated partitions. Perforated partitions provide an increase in the efficiency of water purification from gases due to the uniform distribution of liquid in the deaerator tank and reduce back mixing.

The essence of the utility model is illustrated by the drawing, which shows a schematic diagram of the proposed installation for deaeration of water.

The numbers in the drawing indicate:

1 - deaerator tank;

2 - deaeration column;

3 - counterflow nozzle;

4 - leveling grating;

5 - pipeline supply of source water to the counterflow nozzle;

6 - pipeline supplying heating steam to the deaeration column;

7 - pipeline for supplying heating steam to the deaerator tank;

8 - bubbling steam distribution manifold;

9 - pipe exhaust gases from the deaeration column;

10 - pipe outlet of deaerated water;

11 - perforated partitions.

Installation for deaeration of water contains a deaerator tank 1 with a deaeration column 2, in which there is a counterflow nozzle 3 and a leveling grate 4, installed under the counterflow nozzle 3, as well as a pipeline 5 for supplying source water to the counterflow nozzle 3, a pipeline 6 for supplying heating steam to the deaeration column 2, a pipe 7 for supplying heating steam to the deaerator tank 1, connected to a bubbler steam distribution manifold 8, a pipe 9 for venting gases from the deaeration column, and a pipe 10 for venting deaerated water.

The difference of the proposed installation for deaeration of water is that it contains a device for uniform distribution of liquid, which is installed in the deaerator tank 1, while this device is made in the form of perforated partitions 11 separating the deaerator tank 1 into sections.

Thus, the difference of the proposed installation for deaeration of water is the separation of the deaerator tank 1 into sections with perforated partitions 10, providing a deeper purification of water from dissolved gases.

Installation for deaeration of water works as follows.

The desorption of carbon dioxide and oxygen is carried out by contact of the source of treated water and heating steam.

Source water is fed through a pipe 5 for supplying source water to the counterflow nozzle 3.

Water flows down the nozzle 3 in countercurrent with heating steam, which is supplied through the heating steam supply conduit 6 to the deaeration column 2 and through the leveling grate 4 for uniform heating steam supply.

Partially deaerated water flows into the deaerator tank 1, where the second stage of water purification from corrosive gases is carried out.

Heating steam through the pipeline 7 is also fed into the lower part of the deaerator tank 1 into a bubbler steam distribution manifold 8, which provides for the bubbling of a layer of water partially partially deaerated in column 2 with heating steam.

The deaerator tank 1 is divided by perforated baffles 11 into several sections, which reduces back mixing and provides a deeper purification of water from dissolved corrosive gases.

Partially deaerated water enters the first section of the deaerator tank 1, where, in contact with the bubbling heating steam from the collector 8, desorption of dissolved gases from the water takes place.

Then the water enters the other sections, where the remaining gases are removed.

The number of sections depends on the speed of heating steam, the speed of water, on the diameter of the holes in the bubbler steam distribution manifold 8 and on its length.

Next, the deaerated water is removed through the pipe 10 of the outlet of the deaerated water, and the extracted gases are removed through the pipe 9 of the exhaust from the deaeration column 2.

Using the proposed utility model will improve the efficiency of water purification due to sectioning of the deaerator tank with perforated partitions, ensuring uniform distribution of liquid in the deaerator tank, reducing back mixing and almost complete removal of dissolved gases (to equilibrium) from the water with the appropriate number of sections.

Claims (1)

Installation for deaeration of water, containing a deaerator tank with a deaeration column, in which a counter-current nozzle and an equalizing grate installed under the counter-current nozzle are placed, as well as a pipeline for supplying source water to a counter-current nozzle, a pipe for supplying heating steam to the deaeration column, a pipe for supplying heating steam to the deaerator a tank connected to a bubbler steam distribution manifold, a pipe for venting gases from the deaeration column and a pipe for venting deaerated water, characterized in m, which further comprises a uniform liquid distribution device, which is installed in the deaerating tank, wherein said device is a perforated partition separating the deaeration tank into sections.

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