Station boiler air pre-heater hot point testing apparatus based on upper and lower position structure
A technology for detection devices and power plant boilers, applied in the direction of measuring devices, electric devices, electric radiation detectors, etc., can solve the problems of poor anti-interference ability and high failure rate, and achieve the effect of reliable operation, high reliability and easy maintenance
Inactive Publication Date: 2009-06-24
XIAN UNIV OF TECH
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Problems solved by technology
[0004] The purpose of the present invention is to provide a hot spot detection device for power plant boiler air preheater based on the upper and lower structure, which solves the problems of poor anti-interference ability and high failure rate in the prior art
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[0013] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0014] Such as figure 1 As shown, the present invention includes a main control cabinet 14, the main control cabinet 14 is composed of an upper computer 3 and a lower computer 4, the main control cabinet 14 is connected with the left local cabinet 1 and the right local cabinet 2 respectively, and the left local cabinet 1 1. The effect of the right on-the-spot cabinet 2 is to carry out direct manual manipulation at the site of the left and right air preheaters respectively according to the actual situation. It is respectively connected with the left and right thermocouples and left and right infrared sensors for monitoring the left and right air preheaters, and simultaneously receives the signals from the thermocouples and infrared sensors on the left and right sides, and can analyze the signals collected by monitoring and Call the police. T...
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The invention discloses a hot spot detection device for an air preheater of a power station boiler based on an upper and lower structure. The main control cabinet is composed of upper and lower computers connected. A set of thermocouples and infrared sensors; the thermocouples are set on the upper secondary air side of the air preheater, and the infrared sensors are installed on the trolley of the actuator at the lower part of the rotor heating surface of the same air preheater, and the trolley makes a straight line on the guide rail reciprocating motion. The signal acquisition of the intelligent fire alarm of the present invention is realized by the thermocouple and the infrared sensor, and the intelligent fire alarm algorithm based on the support vector machine is adopted, and the decision-making of the intelligent fire alarm is completed by the upper and lower computer software. When the system is running normally, the judgment of the fire situation is made by the upper computer; when the communication between the upper computer and the lower computer fails or the upper computer itself fails, the system automatically transfers the judgment of the fire situation to the lower computer, thus The reliability of the detection system is greatly improved.
Description
technical field [0001] The invention belongs to the technical field of computer automatic control, and relates to a hot spot detection device for an air preheater of a power plant boiler based on an upper and lower structure. Background technique [0002] At present, most computer control systems use industrial computers to complete functions such as keyboard, display, calculation, control and output. The system formed in this way has a large volume, complex structure, and low reliability. Most of the existing control software is based on the Windows platform. Using a computer to directly complete the control work is not suitable for applications that require high reliability. [0003] The hot spot detection device of the power plant boiler air preheater (hereinafter referred to as the air preheater) is a detection system used to detect in real time whether there are hot spots in the air preheater, an important auxiliary machine of the boiler in a large-scale thermal power p...
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IPC IPC(8): G01K7/02G01J5/10G05B19/05
Inventor 刘丁刘涵梁炎明李琦
Owner XIAN UNIV OF TECH