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Site construction requirements for chillersn in liquid air separation plant

Site construction requirements for chillersn in liquid air separation plant
Sep 09, 2025
Author: DEAR AST

The site should be carefully checked for the chiller type and evaporator design pressure. It is not possible to use the water inlet as a water outlet and vice versa: the water flow switch is determined to be installed.

The first start-up must be carried out under the guidance of the chiller plant manufacturer's personnel. Do not power on the chiller without permission. The installation requirements of the chiller plant are reflected in the operating instructions and the chiller plant manufacturer's personnel will be sent to the site to guide the installation in liquid air separation plant.

 

Site of liquid air separation plant plan layout, piping system configuration in accordance with GB16912-2008 "Deep freezing method for the production of oxygen and related gases safety technical regulations" in line with GB50058-92 "design specifications for electrical installations in explosive and fire-hazardous environments" liquid level design, the

Liquid level regulator insulation: there should be steam or electric heating with heat insulation measures air-cooled tower, water-cooled tower inlet pipe should have a gas seal, in order to waterproof backflow, the height of the gas seal to the requirements prevail. Water pump inlet and outlet pipes set up the necessary support pipe frame to prevent vibration caused by the pump inlet and outlet flange pulling crack.

Air outlet pipe of liquid air separation plant: and pipeline welding must be primed with argon arc welding before welding, so as to avoid welding slag in the air cooling tower screen defoamer screen burned.

Dear air separation of the pipeline flaw detection technology: the use of non-destructive testing air pipeline welds ≥ 250mm, 100% ray inspection, in line with JB / T4730-2005 "non-destructive testing of pressure equipment" requirements, the rest for surface non-destructive testing, and in line with the JB / T4730 provisions of Class 1 requirements.

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