Network System of Helium Cryogenic Control System

A technology of control system and network system, applied in the field of network system

Active Publication Date: 2021-12-24
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, the control system of a large-scale helium cryogenic plant must consider equipment safety, personal safety, occupational health and other issues in different regions, and be compatible with other external control systems

Method used

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  • Network System of Helium Cryogenic Control System

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Embodiment Construction

[0029] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0030] The network structure of a helium cryogenic control system provided by the present invention, such as figure 1 As shown, it includes the top monitoring layer, field control layer, and communication network layer.

[0031] The top-level monitoring layer includes: the top-level control system responsible for low-temperature process operation, the top-level interlock system for equipment protection, and the top-level safety system for occupational health.

[0032] The on-site control layer includes the following: multiple low-temperature on-site sub-control systems divided by different areas or functions. The low-temperature on-site sub-control system includes the refrigerator control system for obtaining low-temperature working fluid, the low-temperature cooling control system for Low temperature auxiliary control system for peripheral equipment.

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Abstract

The invention discloses a network system of a helium low-temperature control system, which relates to the technical field of low-temperature engineering. The low-temperature top-level monitoring system of the invention adopts an open management system architecture, the low-temperature field system adopts a general industrial controller, and the low-temperature communication network adopts a mature According to the characteristics of the on-site sub-control system, it is divided into process control, interlock control, safety control, etc. The invention combines the functional characteristics and requirement levels of the helium cryogenic system to formulate risk prevention and control strategies, divide dedicated communication networks, disperse specific tasks, and centralize hierarchical management, which can meet the operating requirements of large and complex helium cryogenic plant-level cryogenic control systems. The network structure of a helium cryogenic control system proposed by the invention has universality and is suitable for industrial process control systems.

Description

technical field [0001] The invention relates to the technical field of cryogenic engineering, in particular to a network system of a helium cryogenic control system. Background technique [0002] Helium is the most difficult to liquefy gas in nature, with an extremely low critical temperature of 5.2K and a boiling point of 4.2K at standard atmospheric pressure. Helium has extremely stable chemical properties, has the advantages of high specific heat, high thermal conductivity, and low density, and is an excellent low-temperature refrigerant. [0003] With the rapid development of cryogenic and superconducting technologies, helium cryogenic systems have been widely used in high-energy physics, energy security, strategic resources, and basic scientific research. to tens of kilowatts. With the vigorous development of domestic science and technology, the demand for large-scale helium cryogenic systems is more urgent, and its stability directly affects the safe operation of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/418G08C17/02
CPCG05B19/4185G08C17/02G05B2219/33139Y02P90/02
Inventor 陆小飞张启勇周芷伟胡良兵付豹
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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