Central gas supply system for intelligent CIT laboratory

Abstract

The invention discloses a central gas supply system for an intelligent CIT laboratory. Gas supply branch pipelines are in one-to-one correspondence to gas storage cylinders, an outlet of each gas storage cylinder is communicated with a main pipeline through the corresponding gas supply branch pipeline, a pressure reduction device, a gas supply solenoid valve and a gas pressure sensor are mounted on each gas supply branch pipeline, and each gas pressure sensor is located on one side, far away from the corresponding gas storage cylinder, of the corresponding pressure reduction device; one end of an instrument pipeline is communicated with the main pipeline, the other end of the instrument pipeline is used for connecting an external device, and instrument pipeline solenoid valves are mounted on the instrument pipeline; the gas pressure sensors, the pressure reduction devices, the gas supply solenoid valves and the instrument pipeline solenoid valves are electrically connected with a controller; the controller controls starting of corresponding pressure reduction devices according to demands of gas supply, controls the working state of the pressure reduction devices according to the detection value of the corresponding gas pressure sensor and controls work of the corresponding gas supply solenoid valves and the instrument pipeline solenoid valves. The gas supply efficiency can be improved, the arrangement of the gas supply system is simplified, and the degree of automation is improved.

Description

technical field [0001] The invention relates to the technical field of gas supply systems, in particular to a centralized gas supply system for a CIT intelligent laboratory. Background technique [0002] Generally new laboratories, the laboratory has gas chromatography, atomic absorption, atomic fluorescence, liquid chromatography, gas chromatography and other instruments that need to use gas. Many laboratories consider placing gas cylinders in each room and using soft copper pipes to supply gas nearby. The nearby gas supply will make the pipelines arranged in a mess, which is not conducive to effective management, and the degree of automation is low. Copper tubes will oxidize after a long time of use, and the gas will also bring oxidized substances into the instrument and cause damage to the instrument. If hydrogen or other flammable or toxic gases leak, it will cause harm to human safety. Contents of the invention [0003] Based on the technical problems existing in t...

AI Technical Summary

Problems solved by technology

The nearby gas supply will make the pipelines arranged in a mess, which is not conducive to effective management, and the degree of automation is low

Copper tubes will be oxidized after a long time, and the gas will bring oxidized substances into the instrument, causing damage to the instrument

If hydrogen or other flammable or toxic gases leak, it will cause harm to human safety

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