No-blind zone double-color water gauge

Abstract

The invention discloses a no-blind zone double-color water gauge. The no-blind zone double-color water gauge comprises a light source front cover and a light source rear cover. Two perspective holes are formed on one side face of the light source front cover. A gauge body is arranged in the light source front cover. The upper portion of the gauge body is connected with a steam side flange. The lower portion of the gauge body is connected with a water side flange. Transparent holes are formed in the gauge body. Two rows of gauge body window sets are formed in one side face of the gauge body. Each row of gauge body window set corresponds to the corresponding perspective hole and includes a plurality of gauge body windows formed at intervals. The gauge body windows of the two rows of gauge body window sets are arranged in a crossed mode and connected end to end. Each gauge body window comprises a plane located in the middle and inclined faces arranged on the two sides of the plane. The inclined faces incline by 9 degrees relative to the side faces, close to the perspective holes, of the gauge body. Light sources corresponding to the transparent holes are arranged in the light source rear cover. A dimming rotary knob is arranged on the top of the light source rear cover. The problem that in the prior art, water level blind zones exist can be solved, water level blind zones are avoided, and the detection result is accurate and reliable.

Description

Technical field [0001] The invention relates to the technical field of boiler drum water level detection, in particular to a two-color water level gauge without blind zone suitable for boiler drum water level detection of large thermal power generating units. Background technique [0002] Drum water level is an important indicator of boiler operation and a very important controlled variable. Ensuring that the boiler drum water level is within the normal range is the primary condition to ensure the safe operation of the boiler. If the liquid level is too high, the steam will carry too much water. Poor separation of steam and water causes fouling on the wall of the subsequent superheater, lower heat transfer efficiency, and lower superheated steam temperature. In severe cases, the steam quality will decrease, affecting production and safety; if the liquid level is too low, it will destroy the water circulation of part of the water wall. Cause local overheating and damage to the wat...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to propose a two-color water level gauge without blind area, which can solve the problem of water level blind area in the prior art, avoid water level blind area, and the detection result is accurate and reliable

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