Method for detecting discharge pressure faults of water chilling unit
A technology for chillers and exhaust pressure, applied in the direction of measuring fluid pressure, measuring devices, instruments, etc., can solve problems such as fault detection and neglect, and achieve the effect of rapid convergence, rapid and accurate prediction of faults, and guaranteed accuracy
Inactive Publication Date: 2015-06-10
WUHU KAIBOER HI TECH IND
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[0003] In order to overcome the problem of ignoring the fault detection caused by the exhaust pressure of the chiller in the prior art, the present invention provides a method for detecting the exhaust pressure fault of the chiller, aiming at the detection of the exhaust pressure fault of the chiller
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[0025] Referring to the accompanying drawings, through the description of the embodiments, the specific embodiments of the present invention include the shape, structure, mutual position and connection relationship of each part, the function and working principle of each part, and the manufacturing process of the various components involved. And the method of operation and use, etc., are described in further detail to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.
[0026] A method for detecting the discharge pressure fault of a chiller, the flow chart of the method is as follows figure 1 As shown, the method steps include:
[0027] Step 1. Establish a database. The bench test data of the chiller is stored in the database, and relevant parameters for detecting the chiller are also stored in the database, including the exhaust pressure parameters of the chiller, ...
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The invention relates to a method for detecting discharge pressure faults of a water chilling unit, and belongs to the detecting field of the water chilling unit of a cooling tower. The method comprises the following steps: step I, establishing a database in which test data of a water chilling unit rack is stored; step II, establishing a BP (base-pairs) neural network model based on grey predicating, and training a model by utilizing test data in the database; step III, after establishing the BP neural network model based on grey predicating, inputting detected parameters of the water chilling unit to obtain discharge pressure faults of the water chilling unit and a corresponding solution. The method can be used for simultaneously detecting a problem that the discharge pressure is excessively large and small while multiple parameters are detected, the multiple parameters and the discharge pressure can be detected together, and a relationship of the parameters is determined by the BP neural network model based on grey predicating, so that the discharge pressure fault detecting accuracy is guaranteed, and a problem that the fault detection is neglected due to the discharge pressure in the water chilling unit in the prior art is solved.
Description
technical field [0001] The invention relates to the detection field of cooling tower chillers, in particular to a method for detecting exhaust pressure faults of chillers. Background technique [0002] Cooling tower is an important heat and mass transfer equipment in the process of power generation in power plants. Its function is to disperse the heat of high-temperature cooling water into the atmosphere through heat and mass exchange, and reduce the temperature of circulating cooling water. The role of cooling water is mainly due to the mixing and contact of the hot and cold fluids in the tower. With the help of the water vapor partial pressure difference between the two fluids, the hot fluid is partially evaporated and cooled by itself. At present, most of the cooling towers use water cooling to cool down. The chiller used in water cooling has become the main factor to ensure the cooling effect of the cooling tower. However, due to the unstable water inlet temperature and ...
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Inventor 张育仁张研帕提曼热扎克
Owner WUHU KAIBOER HI TECH IND