SU1175522A2 - Installation for vacuum deaeration of water - Google Patents

Abstract

INSTALLATION OF WATER VACUUM DEAERATION according to ed. St. No. 1000054, characterized in that, in order to increase the reliability of the installation in winter, the degasser is equipped with an additional overflow pipe installed in its upper part n which communicates between itself the degasser cavity above the nozzle and under the nozzle below the water level. (O ate sd to y

Description

The invention relates to a technique for the degassing of water and can be used to remove dissolved gases from water in the oil, energy, food and other sectors of the national economy.

The purpose of the invention is to increase the reliability of the installation in winter.

The drawing shows the installation of vacuum deaeration of water, the cut.

The installation contains a degasser 1 having a water inlet pipe 2, a sprinkler 3, a nozzle 4 (lower and upper), a water outlet pipe 5, a gas outlet pipe 6, a regulator 7 level, a sensor 8 of the lower limit level, and a vacuum pump 9 that creates the vacuum in the degasser 1, the pump 10, pumping water from the degasser, the overflow pipe 11 connected with. airtight container 12. The latter has a nozzle 13 connected to the atmosphere or to a drain pipe 14. The pipe 11 is equipped with a visor 15 that prevents 11 drops of water from the nozzle 4 from entering the pipe. The degasser 1 is equipped with an additional overflow pipe 16 that allows water to drain from the cavity above the nozzle 4 into the cavity of the degasser under the nozzle 4. To eliminate the movement of gas through the drain pipe 16, the lower end of the latter is lowered under the water level in the degasser 1. To register the moment of water overflow and give a signal to the installation control panel shown) weir pipe may be provided with a water overflow sensor 17 indicating the start overflowing water.

The installation works as follows.

The original water enters the degasser 1 through the pipe 2 water supply and through the spray 3 enters the lower nozzle 4.

The stack through the nozzle, water due to the vacuum generated 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 I, from where it is fed to the consumer through the nozzle 5 by the pump 10.

The sucked gases are removed from the degasser 1 through the nozzle 6, the passage is pre-upper nozzle 4, which plays the role of a drift separator.

To regulate the water level in the degasser, a level 7 regulator is provided that maintains the water level within certain limits. If a level regulator fails

and lowering the water level in the degasser to the lower limit level, the sensor 8 of the lower limit level is triggered, which will abnormally stop the pump 10, which sucks the water out of the degasser 1.

 When the water level in the degasser rises and the water level regulator fails through pipe 11, the upper open end of which is installed below the lower nozzle 4, it unhindered from the degasser 1 even if there is a vacuum in the degasser.

5 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 11 is equal to or greater than the amount of vacuum in the degasser, expressed in meters of water column.

The water that is poured through the pipe 11 enters the hermetic container 12, from where it is fed through the pipe 13 into the drain pipe 14 and is removed from the installation.

During operation, it is possible to stop the installation, and if this occurs in the winter, then the icing of the nozzle rings is possible, which reduces the pore space for water to pass through the nozzle. In this case, when the unit is put into operation and water is supplied to the nozzle, part of the water passes through the nozzle, and the other part

accumulates on the nozzle, forming a water level on it. The water level on the nozzle, reaching the hole of the overflow pipe 16, stops lifting, since the excess water nq pipe 16 enters directly into the lower part of the degasser 1.

At the same time, the presence of water in the pipe 16 is detected by the sensor 17 of the overflow of water, announcing that the water on the nozzle is freezing. As water flows, which usually has a temperature of 10-25 ° C, through the nozzle 4, the icing on the nozzle rings decreases, and the flow area of the nozzle increases. When the ice is completely melted on the nozzle, all the water coming out of the sprinkler 3 passes through the bottom nozzle 4, the water drains through the pipe 16 is stopped, which will be signaled by the sensor 17 and the installation will enter normal operation.

Claims (1)

INSTALLATION 'VACUUM DEAERATION OF WATER by ed. St. No. 1000054, characterized in that, in order to increase the reliability of the installation in winter, the degasser is equipped with an additional overflow pipe installed in its upper part and communicating between the cavity of the degasser above the nozzle and under the nozzle below the water level.