A Rankine cycle cold source device with vacuum fault self-diagnosis function

Abstract

The invention relates to the relevant technical field of ranking cycle cold source device breakdown detections, in particular to a ranking cycle cold source device and a vacuum breakdown self diagnosis method. By means of the device, integration of condensation, cooling, deoxygenization and vacuum pumping is achieved. A thermodynamic system is simplified and construction cost is reduced. The vacuum breakdown self diagnosis method of the device comprises vacuum pressure detecting the cycle cold source device. If the vacuum pressure surpasses a presetting safety threshold, a plurality of detecting parameters are obtained. The plurality of the detecting parameters are input to a trained neural network, a plurality of output values corresponding to the breakdown source of the cycle cold source device are obtained. The breakdown source corresponding to the largest output value is a diagnosis breakdown source. By means of the ranking cycle cold source device and the vacuum breakdown self diagnosis method, an input parameter is the display when the breakdown happens. The output is a vague neural network model of a main breakdown source degree of membership. The breakdown source is confirmed according to the largest degree of membership, therefore the vacuum breakdown self diagnosis can be achieved.

Description

technical field [0001] The invention relates to the related technical field of fault detection of a Rankine cycle cold source device, in particular to a Rankine cycle cold source device and a vacuum fault self-diagnosis method thereof. Background technique [0002] The cold source of the steam power cycle is the main link that affects the efficiency of the Rankine cycle. At present, the cold source system includes condenser, cooling tower, oxygen removal, circulating water and vacuum pumping system. Since condensing 1 ton of steam requires about 60 to 80 tons of cooling water, the huge circulating cooling, condensation, oxygen removal, and vacuum system not only has complicated pipeline layout and large floor space, but more importantly, the power machinery consumes a lot of power. [0003] Therefore, no matter from the perspective of investment or operation, it is necessary to improve and upgrade the cold source device. This is especially important for waste heat power pl...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a vacuum fault self-diagnosis method of a Rankine cycle cold source device and a cycle cold source device to solve the technical problem that the prior art cycle cold source device cannot perform vacuum fault self-diagnosis

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