Mica water level gauge glass
AssigneeQinhuangdao Huadian Measurement & Control Equipment Co., Ltd.
InventorsMingsi CUI, Shaobin DONG, Jichuan LIU, Hai QU, Xueying QU
Life of this patent
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Abstract
A mica water level gauge glass includes a steam tee fitting, a balance pipe, a water tee fitting, a steam connecting pipe, a water connecting pipe, a condensation tank, a longitudinal vertical gauge body, and a mica assembly. The gauge body includes a thermal compensation cavity, a steam-water cavity, an auxiliary heat confluence device, and a horizontal steam cavity. The exit points of the thermal compensation cavity arranged in the gauge body is lower than the point of the steam-water cavity exiting from the gauge body.
Claims8
A mica water level gauge glass for connecting to a boiler drum through a steam sampling pipe and a water sampling pipe, the mica water level gauge glass comprising:
- a steam tee fitting having an inlet, an outlet and a branch, the inlet of the steam tee fitting in communication with the steam sampling pipe;
- a water tee fitting having an inlet, an outlet and a branch, the inlet of the water tee fitting in communication with the water sampling pipe;
- a balance pipe connecting the branch of the steam tee fitting and the branch of the water tee fitting;
- a steam connecting pipe having a first end and a second end, the first end of the steam connecting pipe connected to the outlet of the steam tee fitting;
- a water connecting pipe having a first end and a second end, the first end of the water connecting pipe connected to the outlet of the water tee fitting;
- a longitudinal vertical gauge body comprising:
- a top;
- a bottom;
- a central vertical axis;
- a thermal compensation cavity having a first end near the top and a second end exiting the gauge body at a first height near the bottom;
- a steam-water cavity having a first end near the top and a second end exiting the gauge body at a second height near the bottom and connected to the second end of the water connecting pipe, the second height being higher than the first height;
- and
- a horizontal steam side cavity in communication with the second end of the steam connecting pipe, the first end of the thermal compensation cavity and the first end of the steam-water cavity;
- a mica assembly along the steam-water cavity;
- an auxiliary heat confluence device having a first end and a second end, the first end connected to the second end of the thermal compensation cavity, the second end for draining condensed water;
- and
- a condensation tank at the top of the gauge body and aligned with the steam-water cavity in a vertical direction.
A method for observing a water level in a boiler drum having a water phase and a steam phase, the method comprising:
- guiding water from the water phase to a vertical water-steam path, the water-steam path having a lower end and an upper end;
- guiding steam from the steam phase to the water-steam path to form a water-steam interface;
- guiding the steam from the steam phase to a vertical thermal compensation path proximate to the water-steam path to provide auxiliary heat to the water-steam path, the thermal compensation path having an upper end at or higher than the upper end of the water-steam path, and a lower end lower than the lower end of the water-steam path;
- and
- observing the water-steam interface through light reflection, refraction, or transmission.
Dependencies are inferred from the claim text.