SU1325019A1 - Thermal deaerator - Google Patents

Abstract

The invention relates to a power system and industrial heating equipment and can be used in thermal power plants and in industrial heating boilers. The invention allows for improved deaeration and improved deaerator performance. In the deaerator tank 1 a steam bypass valve (PPC) is installed, formed by the pallet 7 and partitions 8 lowered into it. The tank 1 also houses a duct (K) 9. The latter forms, together with the pallet 7, channels 10 for supplying steam to the bubbler plates (WT) 3 Depthing of the PPK pallet 7 with 8 8 K 9 partitions lowered into it allows elongation of the jets merging through the perforation of the distributor plate 2. The installation of the pallet 7 in K 9 allows organizing the sequential activation of the BT 3 and the steam bypass valve as it increases load. -. At low loads, only BT 3 works, and as steam loads increase, water is forced out of the control panel, turbulizes it and deaerates it. 1 il. (L co w ate; o w

Description

The invention relates to heat and power engineering and industrial heat engineering, namely to the cordless thermal deaerators, and can be used in thermal power plants and industrial heating boilers.

The purpose of the invention is to improve and increase the performance of the deaerator.

The drawing shows the proposed deaerator, general view, in section.

The deaerator contains a deaerator tank 1 with a water distributor located in its volume in the form of perforated plates 2, bubbling plates 3, overflow necks 4, nozzles 5, a solution of deaerated water 5, and a steam supply nozzle 6. The tank 1 also has a steam bypass valve formed by the pallet 7 and the bulkheads 8 lowered into it. The deaerator is provided with a duct 9, which together with the pallet 7 forms channels 10 for supplying steam to the bubbling plates 3,

The deaerator works as follows.

From the plates 2, the water is directed through the perforations under pressure by jets up and down, then enters the sump 7 of the steam diverter valve, from where it is displaced to the bubbling plates 3 and is drained under the water level through the spillway 4.

Steam is supplied through the pipe 6 and part of it enters through channels 10 under the bubble plates 3. Through the holes in the bubble plates and the WATER layer, this steam enters the jet compartment located above the plates 2. Another part of the steam enters the area of the jets under the plates 2, where heats the water. Some of the uncondensed steam on the jet is turbulized in the exhaust zone of the steam transfer valve and also enters the jet compartment located under the plate 2.

The jet compartment in the deaerator is rotated in two directions from the bubble plate 3. The height of the jets going up from the plate 2 depends on the load of the bridgeless deaerator. The higher the load, the higher the jet that leaves 1 plate out of the hole.

The depth of the pallet 7 of the steam trap valve with lowered into it

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by partitions 8 into the additional box 9, it allows elongation of the streams 1 down from the plate 2,

At minimum loads, water flows down from plate 2. With increasing or decreasing load of the cordless deaerator, a corresponding self-regulating lengthening or shortening of water jets occurs, i.e. with an increase in the required amount of heating, the degree of heating also increases, which, other things being equal, depends on the length of the jets.

The installation of the steam trap 7 bypass valve in the additional box 9 makes it possible to organize the sequential activation of the spout 3 and the steam trap valve as the load increases. At low loads, only the bubbling plate 3 works, and with increasing steam load, the water is displaced from the steam bypass valve, it is turbulized and deaerated. The degree of penetration of the bulkheads 8 into the pallet 7 is controlled by the moment the steam-relief valve is activated. The more deeply septum 8, the higher the column of water in the steam bypass valve and the greater its resistance. With a greater degree of deepening, the operation of the steam trap valve occurs at a higher load. /

The water entering the initial portion of the bubble plates 3 has a saturation temperature, which allows the wrong foam layer to be arranged on the pressure bubble plate 3. In this case, the steam entering the bubble plate 3 through the channels 10 is not concentrated in the perforations. Bubbles of steam only absorb oxygen when water is turbulized intensively, thus providing effective bubbling. The increase in the jet compartment and the development of a superheated valve exhaust zone allows for an increase in the performance of a beskolonkovogo deaerator and a decrease in the oxygen concentration in deaerated water.

Claims (1)

Invention Formula A thermal deaerator containing an accumulator tank with a water distributor located and its volume. 31325019 with bubbling plates, branch pipe deaeration and increase in the supply of steam and steam overpass, it is additionally equipped with an installer, formed by a pallet, placed in it in the battery tank by a symbar lowered into it, in which the steam bath is located metrically relative to the axis nozzle. inlet valve, whose pallet is partitioned, which distinguishes with a duct supply channels so that, in order to improve the steam under the bubbling plates.