Spent fuel pool liquid level and temperature monitoring apparatus
A technology for spent fuel pools and monitors, applied in nuclear reactor monitoring, greenhouse gas reduction, reactors, etc., can solve problems that cannot meet real-time, accurate, stable, and continuous requirements, and do not take into account the particularity of nuclear measurement, etc., to achieve interface Rich, good shock resistance, convenient connection effect
Inactive Publication Date: 2014-09-10
邹伟栋 +5
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] At present, there are many kinds of liquid level or temperature monitoring devices on the market. Because most of their designs do not take into account the particularity of nuclear measurement, they cannot meet the real-time, accuracy, stability, and continuity requirements in the special working environment of this field, and Anti-corrosion, anti-radiation, anti-seismic requirements
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] The split sensor generates electrical signals according to the liquid level and temperature of the monitored medium, and transmits them to the Hart input module of the industrial control cabinet through the signal transmitter using the HART protocol. After the signal is processed by the PLC expansion module, it is transmitted to the CPU of the PLC system, and the signal is converted into a floating-point value to obtain the actual liquid level and temperature value of the spent fuel pool, which is output on the engineer station / operator station / display device, and will be The actual liquid level value is compared with the normal working liquid level range. If it is within this range, the engineer station and the on-site screen will display the output liquid level normally. Otherwise, according to the actual situation, the system will output alarms, valve switches and other backup output switching signals. The engineer station can configure the field sensor and transmitte...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention provides an integrated liquid level and temperature monitoring apparatus. The apparatus can be used in bad work environment of nuclear reactor spent fuel pools, and has the advantages of real time, continuousness, accuracy, stabilization, shock resistance and radiation resistance. The apparatus can realize the real time monitoring of the liquid level position and the pool liquid temperature of the spent fuel pool, wherein the liquid level position is continuously measured. The apparatus has three configuration modes. A mode 1 is a complete mode which is a simultaneous liquid level and temperature monitoring mode; a mode 2 is a liquid level monitoring mode; and a mode 3 is a temperature monitoring mode. The monitoring apparatus also has selectable functions of multi-point arrangement, multi-depth temperature monitoring, multi-screen display and power failure protection in view of the particularity of application environment. Multi-point arrangement is characterized in that onsite sensors are arranged at multiple position points; multi-depth temperature monitoring is characterized in that temperature sensors are arranged at different depths in the liquid of the spent fuel pool; multi-screen display is characterized in that one or more monitoring data display devices are simultaneously locally and remotely arranged; and power failure protection is characterized in that an onsite sensor and a transmitter stand-by power supply are provided.
Description
[Affiliated technical field] [0001] The invention relates to a liquid level and temperature monitoring instrument suitable for spent fuel pools of various nuclear reactors. [Background technique] [0002] The global nuclear power industry has entered the "post-Fukushima era". How to improve nuclear safety has become the main line of development of nuclear-related units including nuclear power plants. The cooling device and sewage purification system of the spent fuel pool stopped working for a while. Although they resumed operation that night, the failure caused people to worry about whether the cold shutdown state could be maintained. Spent fuel is the nuclear fuel in the nuclear fuel assembly (ie spent fuel assembly) that has been discharged from the reactor and is no longer used in the reactor after the burnup depth has reached the design discharge burnup. Spent fuel reprocessing is the most critical link in the latter part of the nuclear fuel cycle. Before the final sep...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G21C17/10G21C17/112
CPCY02E30/30
Inventor 邹伟栋曹曦王小明
Owner 邹伟栋