cold source refrigeration unit for quick-freezing machine

Specifications

Design basis

1, (Refrigerator design specification) GB50072-2110

2, (Heating ventilation and air conditioning design specification) GB500019-2003

3, (The national civil building engineering design technical measures hvac power) 2003 edition

4, (Public building energy efficiency design standards) GB50016-2006

5, (Of the code for fire protection design of buildings ) GB50016-2006

6, (Power supply and distribution system design specifications) GB50052-95

7, (Electric power cable design code) GB50217-2007

Standard configuration of refrigeration units

*Compressor module configuration (each compressor configuration)

*International brand semi-hermetic screw compressor, the built-in exhaust check valve

*Compressor suction, exhaust valve maintenance

*Capacity control solenoid valve (50% - 75% - 75%)

*The hose connection of high-voltage protector

*Compressor oil supply kits, see the oil circuit configuration

*Economizer interface cut-off valve, check valve and solenoid valve (low temperature screw compressor only)

*The core of the suction filter may be substituted

High pressure exhaust side configuration

*The welding of the exhaust manifold, high efficient oil separator, with the function of oil storage and oil level alarm, electric heating oil temperature and oil temperature control

*Exhaust stop-check valves

*Maintenance Angle valves, pressure gauge connection Angle valve

*High pressure controller

High pressure liquid side configuration

*At the inlet and outlet of the distribution of cut-off valve, relief valve accumulator (split type)

*1/4 inch note Angle valve

*Core may be substituted for liquid filter drier

*Dry air filter drain valve

*Depending on the liquid lens

*Forcibly boot and fluoride system

Oil circuit configuration

*High efficient oil separator, oil installation has visual mirror, with the function of oil storage and oil level alarm, electric heating oil temperature and oil temperature control, containing oil

*Valve, cut-off valve, safety valve oil exports

*With stop valve at the inlet and outlet of the oil of the refrigerant oil cooling plate in water

*Llevel of oil filter (50 microns)

*Level cut-off valve at the inlet and outlet of the oil filter

*Equipped with oil temperature sensor

*Maintenance Angle valve

*Oil supply branch valve (each compressor)

*Secondary oil filter (20 microns) (each compressor)

*Electronic oil flow switch (each compressor)

*Oil solenoid valve + oil sight glass (each compressor)

*The oil temperature control valve

Low pressure suction side configuration

*Maintenance Angle valve

*supporting valve of low pressure controller

*Mating Angle valve of low pressure sensor

*Back to the gas outlet of manifold

Economizer configuration (only for low temperature screw unit)

*With international brand of efficient supercooler

*Classification too cold energy controller and valve parts

*For liquid filter, electromagnetic valve, expansion valve

*Expansion branch for liquid depending on the liquid mirror

Distribution and electrical control

*ETL standard electric cabinet

*Power cable line

*Each compressor with international brand circuit breaker (1 set), contactor (2 sets)

*Well-known brand phase protector: lack of phase, phase imbalance, phase sequence protection

*With motor and exhaust temperature protection module, the oil flow protection module (each compressor)

*Control circuit breaker

*Relay control circuit with international brand

*Connection groove, the beauty is generous

*Control panel light (each compressor running and alarm display), compressor switch