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The role of the main valve and the pilot valve in the supermarket refrigerated showcase

The role of the main valve and the pilot valve in the supermarket refrigerated showcase A combined evaporation pressure control device. Its characteristic is that one type of pilot valve can be used as the control valve, and the main valve of multiple specifications can be used as the executive valve to meet the needs of various refrigeration devices. At the same time, according to actual contr...

walk-in display coolersTIME：2016-08-22
The role of the main valve and pilot valve in the supermarket refrigerated showcase (2)

The main valve and pilot valve in the supermarket refrigerated showcase When the evaporation pressure of the supermarket refrigerated showcase is lower than the pressure set by the pressure pilot valve spring, the pilot valve port is closed and the main valve is closed. The refrigerant in the upper chamber of the valve piston is discharged through the balance hole on the piston, and the piston ...

commercial refrigerationTIME：2016-08-22
Supermarket refrigerated showcase maintenance principles and procedures

supermarket refrigerated showcase maintenance principles and procedures supermarket refrigerated showcase maintenance principles first outside and then inside, first electricity and then cold, first conditions, devices, first easy then difficult first, first outside then first excluded (1) For the influence of external factors, check the substantial internal failures of the supermarket refri...

commercial refrigerationTIME：2016-08-22
Walk-in cooler maintenance procedures and precautions

Walk-in cooler maintenance procedures (1) Refrigeration system maintenance procedures First observe the walk-in cooler internal and external refrigeration pipelines-> bleed, pressurize and check for leaks-> replace components or repair leaks -> blow-through -> replacement filter drier -> evacuation -> filling refrigerant -> test machine -> sealing. (2) Electrical system maintenance procedure...

display freezerTIME：2016-08-22
Walk-in cooler pressure pilot valve, temperature pilot valve and main valve control method

walk-in cooler pressure pilot valve + temperature pilot valve + main valve control method Its main function is to control walk-in cooler intercooler The temperature of the medium also controls the evaporation pressure. The main valve is controlled by the pressure pilot valve, so the evaporation pressure can be maintained within a certain range. Operation principle: The temperature sensing bulb...

display freezerTIME：2016-08-22
Commercial refrigeration solenoid valve, pressure pilot valve, temperature pilot valve, and main valve operation principle of each valve

commercial refrigeration solenoid valve, pressure pilot valve, temperature pilot valve and main valve operation principle of each valve this commercial refrigeration control method A higher control accuracy can be obtained, generally within ±1℃. electric pilot valve + main valve action principle: electric pilot valve is a pilot valve with an electric actuator. The electric actuator is contro...

walk-in display coolersTIME：2016-08-22
Supermarket refrigerated showcase Handling precautions

Supermarket refrigerated showcase Handling precautions Supermarket refrigerated showcase for reciprocating compressors. The inclination angle of supermarket refrigerated showcase should be less than 45 degrees to prevent the compressor spring from detaching and prevent the refrigerated oil in the compressor It flows into the low-pressure chamber from the return pipe. When the compressor is tu...

display refrigeratorTIME：2016-08-22
Precautions for the placement of walk-in cooler equipment and components

Precautions for placement of walk-in cooler equipment and components Precautions for placement of equipment and components: ①Departments with walk-in cooler maintenance conditions, acetylene (or liquefied gas) cylinders and Oxygen cylinders should be placed separately at a distance of more than 3m; ②The refrigerant cylinders should be placed upright; ③The compressors should be placed uprig...

commercial refrigerationTIME：2016-08-22
Water-cooled walk-in cooler condenser condensing pressure adjustment

water-cooled walk-in cooler condenser condensing pressure adjustment 1) The use of pressure-controlled water volume control valve is a pressure-controlled water volume control valve structure, it is in the walk -in cooler system installation. Working principle: There is a connecting pipe connected to the condenser at the upper part of the valve to feel the change of condensing pressure; if the...

commercial refrigerationTIME：2016-08-22
Display cooler air-cooled condenser condensing pressure adjustment

display cooler air-cooled condenser condensing pressure adjustment 1) The method of changing the air volume of the cooling fan is generally used to adjust the motor frequency conversion speed (or electromagnetic clutch speed) by the display cooler cooling fan, and also The pressure relay can be used to control the start and stop of some air coolers to adjust the cooling air volume, thereby ach...

display refrigeratorTIME：2016-08-22

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