SU840658A1 - Condenser - Google Patents

Description

. (54) CAPACITOR

one

The invention relates to a power system, in particular, to steam turbine condensers using nitrogen tetroxide as a working medium ().

A known condenser comprising an upper collector with a non-condensable gas outlet nozzle, a tube bundle of vertical condenser tubes, a lower chamber including a steam distribution manifold and a condensate collector, wherein the steam distribution manifold tubes passing through the condensate collector are connected to the condenser tubes.

A pipeline is provided in the upper manifold to remove non-condensable gases Ul.

The disadvantage of such a condenser is the impossibility of providing condenser overcooling to create sufficient cavitation reserve at the inlet of the coolant to the pump of the power plant and cleaning the working fluid from mechanical impurities and other inclusions (for example, from nitric acid if the working fluid is nitroxide (Njip4).

The purpose of the invention is to provide supercooling and purification of condensate from impurities.

This goal is achieved by the fact that the lower chamber of the condenser is provided with an additional capacity for collecting the purified condensate communicated with the upper collector by means of vertical tubes that are additionally installed behind the tube bundle during cooling of the medium.

The drawing schematically depicts the proposed Jy capacitor.

A tube bundle of vertical condenser tubes 3 is connected to the upper collector 1, equipped with a branch pipe 2 of non-condensable gases, the other ends of which are connected to the lower chamber 4. The latter is divided by a horizontal partition 5 into a condensate collector b and a steam distribution manifold 7. The collector 7 is connected tubes 8 passing through the condensate trap 6, with condenser tubes 3. The lower condenser chamber 4 is provided with an additional tank 9 for collecting the purified condensate. This tank communicates with the upper collector 1 by means of additionally installed vertical pipes 10 behind the tube bundle along the cooling medium, and with the pump - pipe 11. In the steam distribution manifold 7 there is a nozzle 12 for length. steam supply, and in the condensate collector -. pipe 13 for sampling of condensate for analysis and removal of condensate with high content of impurities. The capacitor operates as follows. Steam is supplied through pipe 12 to collector 7, then it rises through tubes 8 and barbages through a layer of condensate, the level of which in tubes 3 is above the free ends of tubes 8, and is mixed with it. In tubes 3, washed by the refrigerant, vapor condensation occurs. The resulting condensate flows into the condensate collector 6 by gravity flow, and part of it, entering the upper collector 1, flows through additional pipes 10 to tank 9, from where it passes through pipeline 11 to the inlet of the power installation pump. The non-condensible gases accumulating in the upper part of the collector 1 are removed through the nozzle 2. The vapor, barberira through the condensate layer and the counterflow of condensate flowing along the walls of the tubes 3, captures low-boiling fractions from it, leaving the fraction boiling at a higher temperature. Therefore, going into the collector 1 and flowing along

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Claims (1)

Cuttings 10 into tank 9 condensate is removed from impurities that cause metal corrosion, as well as from mechanical impurities, which are trapped and precipitate in the condensate collector. By selecting the number of tubes 10 and the way they are insulated, the degree of supercooling of the condensate can be controlled. Claim of the invention A condenser comprising an upper collector with a non-condensable gas outlet nozzle, a tube bundle of vertical condenser tubes, a lower chamber including a steam distribution manifold and a condensate collector, while the tubes of the steam distribution manifold passing through the condensate collector are connected to the condenser tubes, there is one of a part of the staff, and there is one of the complement; the purpose of supercooling and purification of condensate from impurities, the lower chamber of the condenser is equipped with an additional tank for collecting purified condensation and communicating with the upper header through additionally installed over the tube bundle along the vertical pipes of the cooling medium. Sources of information taken into account in the examination 1. USSR author's certificate in application No. 2670736, cl. Р28В1 / 06, 1978.