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Measurement method of true value of water level in boiler steam packet and water level gauge

A boiler steam drum and measurement method technology, applied in the field of measurement and testing, can solve problems such as large-scale production accidents, unreliable water level gauges, shutdown of boilers, etc., and achieve reliable performance, low cost, and simple and easy methods

Inactive Publication Date: 2004-06-23
陈延平 +1
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Problems solved by technology

[0002] As we all know, the water level of the boiler drum is an extremely important parameter for safe operation. If the water level of the steam drum deviates from the normal value and reaches the extreme value, it may cause shutdown of the boiler or even a larger production accident.
Therefore, the measurement of the water level of the steam drum has been concerned by relevant scholars since the day when the boiler was installed. The undergraduate textbooks provided now list many methods, but there are still great deviations (these textbooks are attached) , During the shutdown process, these deviations even make the water level gauge unreliable

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  • Measurement method of true value of water level in boiler steam packet and water level gauge
  • Measurement method of true value of water level in boiler steam packet and water level gauge
  • Measurement method of true value of water level in boiler steam packet and water level gauge

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Embodiment Construction

[0018] In the present invention, the inner insulation layer 2 is wound on the water level gauge tube body 1, and the platinum resistance wire 3 is evenly wound outside the inner insulation layer 2, and the outer insulation layer 4 is wound on the outer side of the platinum resistance wire 3, and the insulation layer is wound on the outer insulation layer 4. 5. Wherein the platinum resistance wire 3 can be a standard value of 100Ω or 10Ω, the inner insulating layer 2 can be mica or glass ribbon, the outer insulating layer 4 is a glass ribbon, and the insulation layer 5 is an asbestos rope. When measuring, use 4-wire system at both ends of the platinum resistance wire to enter the analog input port of the computer. The computer adopts SIMATIC S7-300 PLC with special software to measure the average temperature of an uneven temperature field, reaching an infinite number of measurements. The effect of point weighted average, the obtained average temperature, combined with the steam...

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Abstract

The present invention belongs to the field of measurement technology. On the positive side H section of water level gage balancing container, one inner insulating layer, resistive platinum wire and one outer insulating layer are wound successively. During measurement, the resistive platinum wire connected to a computer is used to measure average temperature in the inhomogeneous temperature field for reliable correction of measured water level in the steam packet, and the H section is used to measure the positive pressure between the positive pressure top and the negative pressure top. The present invention can measure water level in boiler steam packet precisely and has reliable performance, simple process and low cost.

Description

Technical field: [0001] The invention belongs to the technical field of testing and measurement, and relates to a method for measuring the water level of a boiler drum and a water level gauge used in the measurement. Background technique: [0002] As we all know, the water level of the boiler drum is an extremely important parameter for safe operation. If the water level of the steam drum deviates from the normal value and reaches the extreme value, it may cause shutdown of the boiler or even a larger production accident. Therefore, the measurement of the water level of the steam drum has been concerned by relevant scholars since the day when the boiler was installed. The undergraduate textbooks provided now list many methods, but there are still great deviations (these textbooks are attached) , During the shutdown process, these deviations even cause the water level gauge to be unreliable. [0003] Now with reference to accompanying drawing 2 briefly describe the measuring...

Claims

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Application Information

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IPC IPC(8): F22B37/78G01F23/14
Inventor 陈延平孙松胤
Owner 陈延平
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