Multifunctional purification apparatus in condenser of power plant

Abstract

The invention relates to a multifunctional purification apparatus in a condenser of a power plant, which is mounted in the upper part of a water outlet in the condenser. The multifunctional purification apparatus is a hollow cubical purification apparatus assembled by a plurality of purification modules in the condenser. From the outer side to the inner side, the modules are divided into five layers: the first layer is an eddy current resisting apparatus made by stainless steel bars or steel discs; the second layer is a magnetic field screen which is made by permanent magnetic pipes and has the function of deferrization; the third layer is a stainless steel screen having the function of fine filtering; the fourth layer is a stainless steel orifice having the function of coarse filtering; and the fifth layer is an oblate cubical framework-framework orifice made by porous stainless steel plates with intervals in the middle, and the fifth layer has no top surface or front surface but other four surfaces. The five layers form the multifunctional purification modules which are assembled to form a sealed purification apparatus. The invention can accelerate deironing purification of condensed water in starting a steam turbine generator unit, reduce emission, save energy, and prolong the service life of resins.

Description

technical field [0001] The invention relates to a water quality purification device in a condenser of a power plant, mainly for removing iron impurities and other mechanical impurities in water, and in particular to a multifunctional purification device. Background technique [0002] The steam and water production process in power plants is generally as follows: the treated condensed water and softened water are boosted by the feed pump and sent to the boiler to be heated into high-temperature and high-pressure steam. After the steam enters the steam turbine that drives the generator to generate power through the steam pipeline, the exhausted steam is discharged into the condenser to condense into condensed water, which is boosted by the condensed water pump and passes through the "finishing treatment" of the iron removal purification device, low pressure heater, and deoxidizer. After water purification, heating, and deoxygenation by the oxygenator, it enters the boiler thro...

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Problems solved by technology

The disadvantage of this device is that it is connected in series in the condensate system, and the resistance is high, the cost is high, and the resin needs to be regenerated, replaced, and discarded.

After the unit is installed and overhauled, there are many mechanical impurities when starting up, and this mechanical filter is necessary for the safety protection of the pump; when the unit is in normal operation, there are few or no such mechanical impurities, but the filter is still Existence, only energy consumption does not work, this loss has continued since the advent of the condensate pump and has not been resolved

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