SU1530203A2 - Installation for vacuum deaeration of water - Google Patents

Abstract

This invention relates to a technique for the degassing of water. The aim of the invention is to improve the performance and reliability of the plant in winter. The installation contains a degasser 1, having a pipe 2 for supplying water, a sprinkler 3, a nozzle 4, a pipe 5 for draining water, a pipe 6 for draining gas 6, a vacuum pump 9 that creates a vacuum in the degasser 1, a pump 10 that pumps out water from the degasser, an overflow pipe 11, connected to the sealed container 12. New is the fact that above the nozzle 4 in the degasser 1 an annular water distributor 16 is placed, made in the form of an annular perforated pipeline near the walls of the degasser 1. It is connected through a pipeline 17 to the vacuum cooling system about the pump 9, which is connected with the pipeline for supplying the source water through pipeline 18. 2 Il.

Description

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side 6 of the gas outlet, a vacuum pump 9 that creates a vacuum in the degasser 1, a pump 10 that pumps out the water from the degasser, an overflow pipe 11 connected to a sealed container 12. New is that the nozzle 16 of water is placed over the nozzle 4 made

in the form of an annular perforated pipe near the walls of the degasser I. It is connected via pipeline 17 to the cooling system of the vacuum pump 9, which via pipe 19 is connected to the source water supply pipeline. 2 Il.

The invention relates to the technique of water degassing, can be used to remove dissolved gases from water in the oil, energy and other sectors of the national economy and is an improvement of the invention according to the author. St. No. 1000054.

The aim of the invention is to improve the performance properties and improve the reliability of the plant in winter.

FIG. 1 shows the installation of vacuum deaeration of water, a longitudinal section; in fig. 2 — node I in FIG. one.

The installation contains a degasser 1, having a pipe 2 for supplying water, a sprinkler 3, a nozzle 4 (lower and upper), a pipe 5 for withdrawing a node. gas outlet pipe 6, regulator 7 level, sensor 8 of the lower limit level, as well as vacuum pump 9, which creates a vacuum in the degasser 1, pump I) pumping out water from the degasser, an overflow pipe 11 connected to a sealed container 12. Capacity 12 has pipe 13, connected to the atmosphere or to the spout 14. The pipe 11 is equipped with a visor 15, which prevents the cap 11 from entering the pipe 11. 1 of water flowing from the nozzle 4. A nozzle 16 of water is placed above the nozzle 4 in the degasser 1, made in the form of an annular perforated duct near the generator of the degasser 1. It is connected via duct 17 to the cooling system 18 of the vacuum pump 9, which is connected via duct 19 to source water supply pipeline.

The installation works as follows

The source water enters the degasser 1 through the water inlet 2 and through the sprinkler 3 enters the lower nozzle 4. The stack through the nozzle, the water due to the vacuum created in the degasser 1 by the vacuum pump 9, is released from the gases dissolved in it and enters the lower part of the degasser 1, where through the pipe 5, the pump 10 is fed to the consumer.

Sucked gases Ud. 1 are from the degasser 1 through the pipe 6, the passage is preceded, 1 by the upper nozzle 4, which plays the role of a sump.

To regulate the water level in the degasser, a level regulator is provided that maintains the water level in the degasser within certain limits. If the level regulator fails and the water level decreases

in the degasser to the lower limit level, the sensor 8 of the lower limit level is triggered, which stops the pump 10 abnormally, pumping water from the degasser I.

The increase in the level of water in the degassing torus and the failure of the level 7 regulator through the pipe I, the upper open end of which is installed below the lower nozzle 4, unhindered from the degasser 1, even if there is a vacuum in the degasser,

 as the internal diameter of the pipe 11 is designed for the maximum flow of water in the degasser, and the height of the pipe 1 1 is equal to or greater than the magnitude of the vacuum in the degasser, expressed in meters of water no1-o CTO, i6a.

0 The water that is radiating through the pipe 1 1 enters the hermetic container 12, from where it is fed through the pipe 13 to the drain pipe 14 and is removed from the pipe.

During operation of the plant in winter, when the temperature of the water supplied

5 is only (close to freezing), and the temperature of the surrounding air in oil areas decreases to -45 ° -60 ° C. Icing of the internal surfaces of the degasser walls (and nozzles) is possible even with external heat insulation. In order to avoid such a situation, hot water, having a temperature of 70, from the cooling system of the vacuum pump 9 through line 19 is fed to the degasser 1 to the perforated ring distributor. Pz 16. Through the perforations, distribute. 16 h. Hot water is supplied partially to the lower nozzle 4, and the main part of the hot water is directed to: | on the inner wall of the degasser 1. The stack along the wall, the hot water is cooled, heats the wall of the degasser,

0 preventing the formation of ice on it. In the lower part of the degasser 1, the indicated water, shifting from the main flow of deaerated water, raises the temperature of all the water by several degrees, which is favorable for the efficiency of the installation during the winter time, preventing icing in the lower part of the degasser. In the cooling system 18 of the vacuum pump 9 through the pipeline 19 is supplied water under pressure

the supply of water from the pipeline to the degasser.

Thus, the proposed solution allows utilizing the previously consumed heat of the cooling system water, directing this heat to the heating of the degasser case and nozzles, eliminate the formation of ice on the degasser case and the nozzle, and thus increase the reliability of the plant in winter.

In this case, hot water from the cooling system of the vacuum pump is utilized, rather than discharged into the sewer system. The volume of cooling water itself, the passage through the degasser, is degassed and then supplied to the consumer.

In addition, an increase in the temperature of all water (at least a few degrees) has a very positive effect on the process itself.

water degassing. By reducing the residual content of dissolved gas in water, i.e., not attracting additional power, it is possible to improve the technical characteristics of the installation (both in winter and summer).

Claims (1)

Invention Formula Installation of vacuum deaeration of water by ed. St. No. 1000054, characterized in that, in order to improve the operational properties and increase the reliability of the installation in s; 1 time, it is equipped with an annular water distributor located above the nozzle, as well as a cooling system for a vacuum pump connected to the water supply pipeline and the annular distributor. FIG. g