Siemens PLC U-05N

12/24/2021

High Temperature Mulfunction of Screw Compressor and Solutions

Ambient temperature may not be the main cause of high temperature shutdown, but it is often the inducement of compressor high temperature shutdown.

07/07/2020

Future trends of semi-hermetic screw compressors Unseen companies may be eliminated

Future trends of semi-hermetic screw compressors Unseen companies may be eliminated From single screw to single-machine two-stage, from ordinary type to frequency conversion, environmental protection, energy-saving type, from single product to system solutions, the development of semi-hermetic screw compressors has never stopped, and has continuously penetrated into major refrigeration projects.

06/29/2020

Several causes of compressor burning

07/08/2020

How to solve the problem of poor oil return of screw chiller

1. What is the cause of the poor oil return of the screw chiller? 　　 Generally speaking, the reason for the poor oil return of the screw chiller is mainly due to the phenomenon of the gas mixture of lubricating oil and refrigerant during the operation. Specifically, in the operation of the refrigeration system, encountering the miscibility of the refrigerant and the refrigerator lubricating oil will cause the lubricant in the refrigeration compressor to run and the refrigerant will be discharged into the condenser in the form of gas mist and droplets.

08/07/2020

Refrigeration unit fan equipment refrigeration system maintenance

1. To operate the unit, always observe the oil level and return of the compressor and the cleanliness of the oil. If the oil is dirty or the oil level drops, it should be solved in time to avoid poor lubrication.

09/15/2020

Pt100, thermocouple integrated temperature transmitter

Pt100, thermocouple integrated temperature transmitter The temperature measuring probe adopts Pt100 platinum resistance, J, K, E, thermocouple, high precision and good stability

08/11/2020

The latest inspection standards for ammonia-related refrigeration enterprises

In order to strengthen the safety of the use of liquid ammonia in ammonia refrigeration enterprises, comprehensively improve the intrinsic safety level of the use of liquid ammonia in the enterprise

01/31/2023

What is a Gear Reducer?

The gear reducer is an independent enclosed transmission gear between the prime mover and the machine, which is used to reduce the speed and increase the torque to meet the work needs.

04/04/2025

Solenoid Valves on KOBELCO Excavators: Locations, Functions, Error Codes and Troubleshooting Methods

When KOBELCO excavator displays error codes starting with D and E, such as D012 and E013, they are a solenoid valve problem.

08/17/2020

Causes and solutions for high-pressure alarms of refrigerators

Generally, the refrigerator is equipped with a full set of protection devices. When the refrigerator has a high-pressure alarm, it will automatically start the protection device, and the corresponding fault indicator will light up