Condenser circulating water pipe secondary filter screen control device and operation method thereof

Abstract

The invention discloses a condenser circulating water pipe secondary filter screen control device and an operation method thereof. The device comprises a control box, a water inlet pipe and a water outlet pipe, wherein a wiring harness pipe is fixedly connected to the right side of the control box, filter cartridges are fixedly connected to the front side and the rear side of the wiring harness pipe, and the opposite ends of the water inlet pipe and the water outlet pipe are communicated with a first three-way pipe and a second three-way pipe correspondingly. The invention relates to the technical field of condensers. According to the condenser circulating water pipe secondary filter screen control device and the operation method thereof, two water inlet flow dividing pipes are arranged, so that the water flow has two channels and can flow in turn in a replaceable manner; when the filter screen needs to be cleaned in one channel, the channel can be closed to guide into the other channel without influencing normal flow of the water flow; and the two filter cartridges are connected through a sewage flushing pipe, so that a small amount of water can be guided out of the other channelto flush the filter cartridges to be cleaned, then sewage can be automatically discharged. The use is convenient, and the work progress is not affected.

Description

technical field [0001] The invention relates to the technical field of condensers, in particular to a control device for a secondary filter screen of a circulating water pipe of a condenser and an operation method thereof. Background technique [0002] The condenser is a heat exchanger that condenses the exhaust steam of the steam turbine into water, also known as the rehydrator. The condenser is mainly used in the power plant of the steam turbine and is divided into two types: a water-cooled condenser and an air-cooled condenser. In addition to condensing the exhaust steam of the steam turbine into water for reuse by the boiler, the condenser can also establish and maintain a vacuum at the exhaust steam of the steam turbine. According to different steam condensation methods, condensers can be divided into two types: surface type (also called partition type) and mixed type (also called contact type). In a surface condenser, vapor separated from the cooling medium is condens...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a control device for the secondary filter screen of the circulating water pipe of the condenser and its operation method, which solves the problem that the surface of the filter screen will be blocked after a long time of filtration and purification, which will further affect the filtration and purification. As a result, in severe cases, the pipeline will be blocked and the flow of water will be affected. However, the existing cleaning measures are generally to temporarily close the pipeline and remove it for cleaning, which is troublesome and affects work efficiency.

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