Novel evaporator process detecting and debugging system for nuclear fuel processing plant

A process detection and debugging system technology, applied in nuclear engineering, program control in sequence/logic controllers, instruments, etc., can solve the problems of slow feedback of the adjustment control loop, difficulty in judging the state of the instrument, and unfavorable timely adjustment, etc. The effect of shortening the adjustment cycle, improving the transmission accuracy and efficiency, and reducing the load

Inactive Publication Date: 2018-11-06
CHINA NUCLEAR POWER ENG CO LTD
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Problems solved by technology

The disadvantage of this is that the load on the controller is large, and once a situation occurs, the consequences will be more serious. Second, the feedback of the adjustment control loop is slow, which is not conducive to tim

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  • Novel evaporator process detecting and debugging system for nuclear fuel processing plant
  • Novel evaporator process detecting and debugging system for nuclear fuel processing plant
  • Novel evaporator process detecting and debugging system for nuclear fuel processing plant

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Embodiment Construction

[0035] The present invention will be described in detail below with reference to the drawings and embodiments.

[0036] Such as image 3 As shown, the present invention provides a new type of nuclear fuel reprocessing plant evaporator process detection and debugging system, including a controller and instrumentation equipment; the instrumentation layer equipment is connected to the controller through the Foundation Fieldbus. The instrumentation equipment includes a density measuring instrument 2, a liquid level measuring instrument 1, a temperature measuring instrument 3, a pressure measuring instrument 4, a steam inlet switching valve 5, a steam inlet regulating valve 6 and an evaporator feeding device 7.

[0037] Specifically, the liquid level measuring instrument 1, the density measuring instrument 2 and the evaporator feeding device 7 share a foundation field bus to connect to the controller, so as to realize the FF bus type intelligent differential pressure change The transmi...

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Abstract

The invention relates to a novel evaporator process detecting and debugging system for a nuclear fuel processing plant. The system comprises a controller and instrument equipment; the instrument equipment is accessed to the controller through a foundation field bus. The system has the advantages that foundation field bus intelligent equipment (Foundation Fieldbus, which is called FF for short) takes the place of traditional equipment, FF bus-type intelligent equipment is adopted to perform testing control on processing parameters to convert analog quantity signals of 4-20 mA and thermocouple and the like into more accurate digital quantity signals, and the digital quantity signals are transmitted on the bus to facilitate the improvement of transmission accuracy and efficiency.

Description

Technical field [0001] The invention belongs to the field of nuclear engineering equipment, and specifically relates to a process detection and debugging system for an evaporator in a new type of nuclear fuel reprocessing plant. Background technique [0002] Non-boiling natural circulation evaporator is an important equipment in nuclear fuel reprocessing engineering. The use of evaporator can realize the concentration of radioactive waste liquid, reduce the amount of waste storage, and achieve waste minimization. Due to the harsh working conditions of the evaporator and the danger of "red oil" explosion, it is very important to accurately measure various parameters during the operation of the evaporator and strictly control the operating conditions of the evaporator. The important detection parameters of the evaporator include liquid level, density, temperature and pressure, which are all necessary to ensure the quality of the evaporator and the safety of the evaporator. [0003] ...

Claims

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Application Information

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IPC IPC(8): G21F9/08G01D21/02G05B19/04
CPCG01D21/02G05B19/04G21F9/08
Inventor 吴珂李晓薇张博陈朝东马世海崔国华
Owner CHINA NUCLEAR POWER ENG CO LTD
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