SU1613434A1 - Water degassing device - Google Patents

Abstract

The invention relates to a power system and can be used in the schemes of thermal power plants and heating boilers for the degassing of make-up water. The purpose of the invention is to increase work efficiency. The source water through the inlet pipe 16 and the inlet pipes 4, 5 is supplied to confusor nozzles 8, 9, upon expiration of which volumetric boiling of water occurs and the gases dissolved in it are released. Next, the steam pipe enters the mixture into chambers 6,7, where the process of pressure reduction is repeated. The presence of equalization pipelines 12, 13 contributes to the equalization of pressures in the nozzles 4.5 and chambers 6,7, increasing the stability of the processes and the deepening of the vacuum. From chambers 6.7, the flow is directed to tank 1, meeting on its way perforated sheets 14.15, contributing to the residual evolution of gases. The organization of double expansion, the use of parallel-installed nozzles and chambers also improves plant performance, degassing quality. 2 hp ff, 1 ill.

Description

74-

: J U VX7

I

The invention relates to heat and power plants and can be used in heat and heat transfer circuits and heating water drainage drainage schemes.

The aim of the invention is to increase efficiency.

The drawing schematically shows the proposed water degasser.

The degasser contains an accumulation tank 1 with nozzles 2 and 3, respectively, drainage and evaporation and a source water supply device, made of the type of inlet inlet nozzles 4 and 5 connected in parallel and cylindrical chambers 6 and 7, while nozzles 4 and 5 are inserted into chambers 6 and 7, and inside the nozzles 4 and 5 there are confused nozzles 8 and 9 with cylindrical outlet sections 10 and 11. The nozzles 4 and 5 in the area of the outlet sections of the nozzles are equipped with a balancing pipe 12, and the chambers 6 and 7 in the upper sections are also interconnected by a pipeline one 3. The perforated sheets 14 and 15 are placed in the steam volume of the tank 1. An inlet pipe 16 is provided for supplying the treated water to the pipes 4 and 5.

The degasser works as follows.

The source water through the inlet pipe 16 and the inlet pipes 4 and 5 enters the confusing nozzles 8 and 9 and their cylindrical sections 10 and 11. As the flow rate in the nozzles 8 and 9 increases, the pressure in the jets decreases and as they exit, inside the nozzles 4 and 5, the volume boils water, releasing soluble gases from it. Next, the steam pipe enters the mixture into cylindrical chambers 6 and 7, where the process of reducing the pressure and, as a result, the expansion and boiling up of part of the non-evaporated water continues. The presence of pipelines 12 and 13 helps to equalize the pressures in the pipes 4 and 5 and chambers 6 and 7 and to increase the stability of the processes of outflow and boiling, the deepening of the vacuum. From chambers 6 and 7, the flow enters tank 1, and the perforated sheets 14 and 15 encounter on their way. When the flow interacts with the latter, the separation of gases continues, which are sucked out of tank 1 through installation nozzle 3 (not shown). A feature of the dispenser is that. that when using it, it is possible to remove not only oxygen from the water, but also other C02 gases. H2S, etc. Thus, in the technological scheme, it is possible to combine the work of the deaerator and the decarboniser. i.e. instead of two devices, one given degasser can be used, which gives a significant economic effect by reducing capital expenditures. When creating a high vacuum, relatively cold water can be effectively degassed.

The organization of double expansion of water at a sufficiently low pressure in the installation improves the quality of degassing, and the use of parallel-mounted nozzles and chambers in the degasser allows for increased productivity. Thus, work efficiency is improved.

Claims (3)

1. A water degasser containing an accumulation tank with nozzles for discharging water and vapors, a device for supplying source water, made in the form of a supply pipe equipped with a confusing nozzle with a cylindrical outlet section, characterized in that, in order to increase work efficiency, the device for supplying water additionally provided with a cylindrical chamber located between the tank and the inlet nozzle, the nozzle being placed inside the said nozzle, and the nozzle itself is connected to the exit section of the nozzle. 2. The degasser according to claim 1, characterized in that it is additionally equipped with at least one additional water supply device connected in water in parallel to the main one and equalizing pipes, one of which is placed between the inlet pipes of the device in the area of output nozzle sections, and the other between the cylindrical chambers in their upper sections. 3. Degasifier for PP. 1 and 2, characterized in that perforated sheets are additionally installed in the steam volume of the tank.