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Measuring device for vapor-liquid separation and liquid flow classification

A liquid flow, vapor-liquid separation technology, applied in liquid/fluid solid measurement, measurement device, volume measurement, etc., can solve problems such as the refinement of the vapor-liquid two-phase mixture without the inner space of the containment

Active Publication Date: 2022-03-25
UNIT 92609 OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no device for detailed research on the generation and change process of the gas-liquid two-phase mixture in the inner space of the containment

Method used

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  • Measuring device for vapor-liquid separation and liquid flow classification
  • Measuring device for vapor-liquid separation and liquid flow classification
  • Measuring device for vapor-liquid separation and liquid flow classification

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Example 1: Measure the dripping condensate on the wall and space respectively;

[0022] Before the operation of the vapor-liquid separation measuring device, flush water into the collection tank 2 9 and the collection tank 13 until the water level increases to above the elevation position of the liquid level gauge 12; To ensure that the pressure-inducing pipe 11 on the side wall of the collecting tank is completely filled with cooling water. Open the intake valve, when the steam and air mixture flows into the vapor-liquid separation measuring device from the horn-shaped cover 1 of the airflow inlet, the steam condenses on the inner surface of the cooling plate 4, and the condensed water is affected by gravity and surface tension, as well as dirt and surface unevenness. Under the influence of other factors, a part of the water will flow down along the side wall of the simulated cavity 2, and the water flowing along the side wall of the simulated cavity 2 will flow into t...

Embodiment 2

[0023] Example 2: Research on condensation heat transfer of containment dome;

[0024]Before the operation of the vapor-liquid separation measuring device, flush water into the collection tank No. 2 9 and the collection tank 13 until the water level increases to above the elevation position of the liquid level gauge 12; To ensure that the pressure-inducing pipe 11 on the side wall of the collecting tank is completely filled with cooling water. Open the intake valve, when the steam and air mixture flow into the vapor-liquid separation measuring device from the horn-shaped cover 1 of the airflow inlet, the steam condenses on the inner surface of the cooling plate 4, and the condensed water is affected by gravity and surface tension, as well as dirt and surface unevenness. Under the influence of other factors, a part of the water will flow down along the side wall of the simulated cavity 2, and the water flowing along the side wall of the simulated cavity 2 will flow into the col...

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Abstract

A device for vapor-liquid separation and liquid flow classification measurement, which consists of a horn-shaped cover (1), a simulated cavity (2), a grid cover (3), a cooling plate (4), a condensate collection container (5), Container side plate (5'), collection tank (6), hose (7), liquid seal pipe (8), collection tank (9), steam return pipe (10), pressure induction pipe (11), liquid level gauge (12), collection tank (13) is formed. The liquid droplets entrained in the air flow are separated from the gas through the grille sleeve (3) and introduced into the designated collection tank (9) and collection tank (13); it is also possible to collect and measure the water flow in real time, realizing the The volume of the condensed space droplets on the cold wall and the flow of the water film flowing along the wall are measured separately.

Description

technical field [0001] The invention belongs to the technical field of thermonuclear power generation, in particular to a technology for measuring the spatial drop ratio of steam condensed water in a containment dome of a nuclear power plant. Background technique [0002] At present, the use of containment is one of the safety protection measures for nuclear power plants. When the primary circuit pipeline bursts in the containment, hot steam and atomized water vapor will rush into the inner space of the containment, and the dome of the containment will be damaged by the hot steam. Cooled to produce condensate, part of which will flow down along the inclined wall under the action of gravity, and the other part will drop directly into the inner space under the action of gravity, and the droplets that drop into the space will enter the liquid phase and form a vapor-liquid two-phase mixture. At present, there is no device for detailed research on the generation and change proce...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F15/08
CPCG01F15/08
Inventor 李乐伊雄鹰李成周旭华刘静涛孙长江郝亚雷王颖杨磊
Owner UNIT 92609 OF PLA