Passive wireless thermal power plant wall temperature measurement system powered by temperature difference module

A passive wireless and measurement system technology, applied in the direction of measuring devices, measuring heat, signal transmission systems, etc., can solve the problems of wasting cables and occupying bridge space, etc., and achieve the effects of convenient installation, reduced maintenance costs, and increased stability

Pending Publication Date: 2018-12-28
CENT CHINA BRANCH OF CHINA DATANG CORP SCI & TECH RES INST CO LTD
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Problems solved by technology

In thermal power plants, due to the large number of temperature measurement points, even

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  • Passive wireless thermal power plant wall temperature measurement system powered by temperature difference module
  • Passive wireless thermal power plant wall temperature measurement system powered by temperature difference module

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[0032] The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0033] by Figure 1-2 Given, the present invention is a passive wireless thermal power plant wall temperature measurement system powered by a temperature difference module, which includes a temperature difference power generation module 2, a microprocessor and a temperature sensor. The temperature difference power generation module 2 is closely attached to the outer surface of the wall 1 to be measured. The side of the thermoelectric power module that is in close contact with the wall to be measured is used as the hot end, and the side away from the wall to be measured is used as the cold end. The surface of the cold end is coated with a thermally conductive silicone grease layer 3, and the outer side of the thermally conductive silicone grease layer 3 is covered with a heat sink 4 , Forming the heat dissipation structure of the cold en...

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Abstract

The invention relates to a passive wireless thermal power plant wall temperature measurement system powered by a temperature difference module. The technical scheme is that the electric energy of a temperature difference power generation module is connected with a boosting module, the boosting module is connected with a power management module, an output end of the power management module is respectively connected with an input end of a rechargeable lithium battery, a power supply input end of a microprocessor and the power supply input end of a temperature sensor, the output end of the rechargeable lithium battery is respectively connected with the power supply input end of the microprocessor and the power supply input end of the temperature sensor, and a signal output end of the temperature sensor is connected with a signal input end of the microprocessor. According to the passive wireless thermal power plant wall temperature measurement system provided by the invention, the thermalenergy is directly converted into the electric energy to supply power to the microprocessor and the temperature sensor through the temperature difference power generation module without the steps of inversion, rectification and the like, thereby greatly reducing the temperature measurement wiring number and distance; and the signal transmission and reception of a micro-processing and distributed control system by using the ZigBee wireless transmission technology, so that the response speed is high, the power consumption is low, the transmission distance is large, and the flexibility is high.

Description

technical field [0001] The invention relates to a wall temperature detection system for boilers, steam turbines and pipes of thermal power plants, in particular to a passive wireless thermal power plant wall temperature measurement system powered by a temperature difference module. Background technique [0002] At present, during the operation of thermal power units, it is necessary to monitor the wall temperature of boilers, steam turbines and their pipelines for a long time. Traditional monitoring systems usually use thermal resistance or thermocouples for temperature measurement. Generally, a large number of cables need to be laid to provide power for the system and transmit temperature signals. However, in thermal power plants, due to the large number of temperature measurement points, even as many as thousands, if wiring takes up a lot of bridge space and wastes a lot of cables. Therefore, it is urgently needed to find a relatively complete temperature detection method...

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Application Information

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IPC IPC(8): G01K13/00G01K1/02G08C17/02H02J7/32H02N11/00G01K1/024G01K1/143
CPCH02N11/002G08C17/02G01K1/024G01K13/00H02J7/32
Inventor 崔东亚韩威张东海任梦祎杨子豪马仁婷
Owner CENT CHINA BRANCH OF CHINA DATANG CORP SCI & TECH RES INST CO LTD
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