SU802189A1 - Vacuum deaerating unit - Google Patents

Description

one

This invention relates to vacuum deaeration plants, preferably with superheated water deaerators.

A deaeration plant is known, containing a deaerator with a tank-battery and a column in which water-distributing devices and jet plates are installed, a evaporator cooler connected to it, an ejector with a refrigerator connected to it, and connected to the column of the deaee supply line {ij and connected water) ij .

The main disadvantages of the known installation are the low degree of degassing and low efficiency.

The aim of the invention is to increase the depth of degassing and increase cost-effective.

This goal is achieved by the fact that the column is equipped with perforated collectors with reflective shields above them, the collectors are installed in the central part of the column between the jet trays and connected to the make-up water supply line and the latter is connected to the ejector cooler.

The water distribution device is made in the form of two perforated collectors with a vertical water guide between them - FIG. 1 shows the proposed vacuum deaeration unit; in fig. 2 is a cross section of a deaeration column.

10 Vacuum deaeration plant (Fig. 1) contains a deaerator with tank accumulator 1 and column 2. Column 2 is connected to storage tank 1 by pipe 3. Pipeline 4 column 2 is connected to

by the evaporator cooler 5, which is connected via pipeline 6 with an ejector 7 with a refrigerator 8. The hollow case 8 is connected to column 2 of a pipe 20 with a supply line 9 for supplying make-up water. The collection tank 10 is deaerated. The VO.TSY is connected to the column 2 by the supply-pipe line 11. The vacuum battery 1 is connected by the pipeline

15 12 with ohlsplschielem 5 vapor. The installation is equipped with a suction pump 13 connected to the storage tank 1 by pipeline 14.

In column 2 at the top

30 (Fig. 2), a water distribution device is installed in the form of two perforated collectors 15 of deaerated water with a vertical water guide partition 16 between them. Under the partition 16 is placed a pallet 17 with 18 jet trays sectioned by means of plates 18 adjacent to it on both sides. Between the latter, perforated collectors 20 of make-up water are installed in the central part of column 2 with reflective shields 21 placed above them. plates 22 jet plates 23 and 24. At the entrance to the pipeline 3 is installed inclined shelves 25 and overflow shield 26.

Vacuum deaeration installation works as follows.

Chemically purified superheated water from process plants (for example, vulcanizers) flows by gravity into collection tank 10, from which, under the effect of atmospheric pressure, pipeline 1-1 goes to perforated collectors 15 of column 2. From collectors 15, deaerated water is supplied as direct and inclined jets a septum 16. Water in the form of a film flows along a septum 16 and is collected in a pallet 17, from which it is then poured into plates 19. From the plates 19, deaerated water in the form of jets falls on the underlying plates 23 and 24.

The feedwater supplied from the cooler 8 of the electrolyte 7 is superheated through perforated collectors 20 in the form of inclined jets enters the reflective flaps 21. At the outflow from the collectors 20 of the overheated feedwater boils, steam with the aid of the flaps 21 crosses the streams of the main flow of water flowing from the plates 23, turbulent flow of flowing water, causing it to boil again and remove evolved gases. The deaerated water of the main and feed streams is then supplied to the inclined shelves 25, overflow shield 26 and discharged from column 2 via pipeline 3 to the tank accumulator 1. By organizing such water drainage from column 2, it promotes deep degassing due to turbulization of the water flow, reducing its ejecting effect jets.

Extracted in the process of boiling water on the pallet 17 and the plates 19,

23 and 24 gases together with steam through the pipeline 4 are fed into the cooler 5 of the vapor (condenser). By cooling the vapor and gas in cooler 5, the required vacuum in column 2 is provided. Non-condensable gases are sucked off from Cooler 5 with effector 7.

Supplying the column with perforated reflective headers

shields above them, the installation of collectors in the central part of the column between the jet plates and their connection with the supply water line, the latter being connected to

an ejector cooler, as well as a water distribution device in the form of two perforated manifolds with a vertical water guide between them

allows you to increase the depth of degassing and increase the efficiency of the installation.

Claims (2)

1. Vacuum deaeration plant containing a deaerator with a bacon and accumulator and with a column in which a water distribution device and jet plates are installed, connected to the column with a steam cooler, connected to it an ejector with a refrigerator and connected to the column of the supply line with a deaerated and make-up water, characterized in that, in order to increase the degassing depth and increase efficiency, the column is equipped with perforated collectors with reflective guards above them, collectors are installed in the central part of the column between the jet plates and connected to the supply water line, and the latter is connected to fridge ejector. 2. Installation under item 1, characterized in that the water distribution device is made in the form of two perforated collectors with a vertical water guide a partition between them. Sources of information taken into account in the examination 1. Trub MA, Litvin OP Vacuum deaerators. - M., Energie, 1967, p. 69, fig. 27.