Title:
HEAT EXCHANGE WATER TANK LIQUID LEVEL MEASUREMENT SYSTEM AND METHOD, AND NUCLEAR POWER PLANT PCS
Document Type and Number:
WIPO Patent Application WO/2023/273250
Kind Code:
A1
Abstract:
A heat exchange water tank liquid level measurement system and method, and a nuclear power plant PCS. A first pressure measurement instrument of the liquid level measurement system is located on a water outlet pipeline (5) at the bottom of a heat exchange water tank (8), and is used for measuring a water pressure at the bottom of the heat exchange water tank (8); a second pressure measurement instrument of the liquid level measurement system is located on a manhole channel (7) at the top of the heat exchange water tank (8), and is used for measuring a water pressure at the top of the heat exchange water tank (8); a DCS system (1) of the liquid level measurement system is used for calculating a pressure difference, and according to the logical formula of the liquid level and pressure difference stored therein, calculating the liquid level in the heat exchange water tank (8). Thus, the problem of poor instrument precision caused by long-distance capillary transmission is avoided, and the risk of installation and the difficulty of maintenance and measurement are greatly reduced.
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Inventors:
YU LEI (CN)
WU PING (CN)
LI JIANQIU (CN)
GUO LIN (CN)
WU PING (CN)
LI JIANQIU (CN)
GUO LIN (CN)
Application Number:
PCT/CN2021/141619
Publication Date:
January 05, 2023
Filing Date:
December 27, 2021
Export Citation:
Assignee:
CHINA NUCLEAR POWER ENG CO LTD (CN)
International Classes:
G21C17/035; G01F23/18; G21C15/18
Foreign References:
| CN113571215A | 2021-10-29 | |||
| CN212007412U | 2020-11-24 | |||
| CN210400532U | 2020-04-24 | |||
| CN111627580A | 2020-09-04 | |||
| CN112665682A | 2021-04-16 | |||
| US20200182677A1 | 2020-06-11 |
Attorney, Agent or Firm:
TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (CN)
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