On-line monitoring method for boiler expansion

A technology for boilers and boiler headers, applied in lighting and heating equipment, fluid heaters, etc., can solve the problem of insufficient scientific evaluation and analysis data of boiler safe operation status, imperfect deformation and expansion detection technology, unfavorable analysis and accident prevention, etc. problems, to achieve the effects of perfect detection technology, safe operation status evaluation and analysis data science, analysis and prevention of accidents in a timely manner

Inactive Publication Date: 2003-11-26
何文榜
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Problems solved by technology

In terms of boiler explosion-proof measures, although there are many relevant regulations and regulations in the country, the deformation and expansion detection technology of the boile

Method used

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  • On-line monitoring method for boiler expansion
  • On-line monitoring method for boiler expansion
  • On-line monitoring method for boiler expansion

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Embodiment Construction

[0011] refer to figure 1 and figure 2 , install the displacement measuring element 2 on the fixed bracket corresponding to each end of the boiler header respectively, adjust the position of the displacement sensor in the cold state, make it contact with the header expansion transmission rod 3 and fix the sensor, when the boiler is ignited During operation, the temperature rises gradually, and the expansion displacement increases. When the furnace is stopped, the opposite is true. The expansion of the header to both ends is converted into digital signals by displacement sensors (including abnormal states) and transmitted to the automatic recording system and on-line monitoring. , Overrun alarm system, that is, a remote computer. The boiler expansion picture and parameters are shown on the computer screen. During the actual boiler start-up process, from the cold state to the rated working state, the expansion of the header is 85mm, which is consistent with the initial and fina...

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Abstract

The on-line monitoring method for boiler expansion includes mounting displacement sensors to ends of boiler header to measure the expansion displacement of the header, transmitting the output signalsof the displacement sensors to computer via cable, recording the displacement data in the computer with set program, monitoring the boiler expansion via display screen and sending warning signal in case of exceeding the set expansion limit. The present invention provides technological support and monitoring means for the safe running and analysis of boiler.

Description

Technical field: [0001] The invention belongs to the technical field of boiler operation safety monitoring, and in particular relates to an online monitoring method for boiler expansion. Background technique: [0002] At present, in thermal power plants and industrial production, a large number of high-pressure, ultra-high-pressure and special boilers are operating, and there have been many boiler explosion accidents, which seriously threaten safe production and personal safety. In terms of boiler explosion-proof measures, although there are many relevant regulations and regulations in the country, the deformation and expansion detection technology of the boiler as a whole due to heat or metal fatigue under high temperature and high pressure is not perfect enough. Not scientific enough, not conducive to timely analysis and accident prevention. Invention content: [0003] The technical problem to be solved by the present invention is to provide an online boiler expansion m...

Claims

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Application Information

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IPC IPC(8): F24H9/20
Inventor 何文榜
Owner 何文榜
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