Condenser tracing online leakage detection equipment and leakage detection method

Abstract

The invention discloses condenser tracing online leakage detection equipment and a leakage detection method. The equipment comprises a tracer storage tank, an electromagnetic valve, an injection pump, a demineralized water tank, an infusion pump, a quantitative ring, a tracer detector, an automatic control cabinet and the like. When the condenser leaks, the control cabinet controls the demineralized water to flush the pipeline of the detection system, then the tracer agent is injected into the two water chambers of the low-back-pressure inlet of the condenser through the injection pump; the tracer agent leaks into condensed water along with circulating water after waiting for a certain time after injection every time. Then, the sampling electromagnetic valve at outlet of condensate pump is opened, condensate mixed with tracer agent enters tracer agent detection system through liquid conveying pump, ultraviolet absorbance of tracer agent is tested, and when ultraviolet absorbance value exceeds set value, it is indicated that leakage happens to condenser on circulating water side; and then tracer agents are injected into a water return pipe between the high-back-pressure water chamber and the low-back-pressure water chamber of the condenser on the leakage side, wherein high-back-pressure side leakage is determined when the light absorption value exceeds the set value, and low-back-pressure side leakage is determined when the light absorption value is lower than the set value.

Description

technical field [0001] The invention relates to the technical field of condenser leakage detection, in particular to a condenser tracer online leakage detection equipment and a leakage detection method. Background technique [0002] Condenser leakage is one of the important hidden dangers that has long plagued the safe operation of thermal power plants, especially coastal seawater cooling power plants. If the leakage of the condenser cannot be detected and dealt with in time, it will not only cause the cooling water to leak into the condensed water outside the tube, on the one hand, the vacuum degree will deteriorate, on the other hand, the polluted condensed water will scale on the heating surface of the boiler, reducing the heat exchange Efficiency or even a pipe burst accident will lead to a decline in steam quality, which will seriously affect the safe operation of the unit. [0003] In this regard, the existing condenser leak detection technology usually uses a hydroge...

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