HITACHI VFD Frequency Converter SJ700-1600HFE

07/16/2020

How to clean the rain test box

After using the box-type rain test box, and regular cleaning is a very important work, I believe many customers will not be unfamiliar. The internal cleaning of the box-type rain test box is the top priority. Let's take a look with the editor. Cleaning items of box rain test box:

06/29/2020

What is the cause of compressor pipeline vibration

09/07/2020

Three major aspects to improve the energy efficiency of air compressors

As we all know, as a compressed air preparation device, an air compressor consumes a lot of power. In the life cycle cost of an air compressor, energy consumption accounts for up to 75%, which is several times the purchase cost of an air compressor.

07/14/2020

Compressor 9 types of faults and hazard analysis are all here! ! !

Compressor 9 types of faults and hazard analysis are all here! ! ! 1. Common faults of compressor — start with liquid Starting with fluid is a problem that easily occurs when the machine is stopped. During shutdown, the refrigerant will migrate from the system back to the compressor and deposit in the lubricant.

09/06/2020

Why choose a frequency conversion air compressor Count the protection of the inverter to the motor

During the production and use of air compressor motors, improper operation often causes damage to the motor, which not only loses money, but also has a greater impact on the production schedule.

09/09/2024

Types, Structures and Characteristics of Condensers

The condenser is one of the main heat exchange equipment in refrigeration units. Its task is to cool and condense the high-pressure superheated refrigerant vapor discharged

08/11/2020

Common practice of oil return design in refrigeration system

When the condenser is installed higher than the compressor, a U-shaped bend is required at the intake pipe of the condenser to prevent oil from returning to the exhaust side of the compressor during shutdown and also help prevent liquid refrigerant from the condenser

07/15/2020

What you need to know about Copeland compressors

The operation of Copeland Scroll compressor is directional. It can only rotate in one direction for compression. The specific direction of rotation depends on the phase force. If the scroll compressor rotates in reverse, it will cause insufficient lubrication of the system and cause scroll wear or damage to the scroll components.

09/14/2020

Troubleshooting of high pressure air compressor

1-0.27/150 Type High Pressure Air Compressor Troubleshooting Method Fault Features Sound in the crankcase Possible cause a. The screw and nut of the connecting rod are loose. Whether the big-end bearing of the connecting rod is loose.

12/28/2022

Classifications of Programmable Logic Controller

The programmable logic controller (PLC) is a digital operation controller with microprocessor for automatic control, which can load control instructions into memory for storage and execution at any time.