Nidec Fan E34389-82C

09/01/2020

Is energy consumption high in the paper industry Try to change the oil to the air compressor

The paper industry is closely related to the national economy and social development, and it is also a large traditional energy consumption and waste discharger. How to significantly reduce the

07/26/2020

Precautions for using R410A refrigerant in air conditioner

The types of refrigerating machine oil (lubricating oil) are roughly divided into mineral oil and synthetic oil according to the use of refrigerant. The lubricating oil of R22 refrigerant currently used is basically mineral oil. R410A refrigerant uses synthetic oil.

08/17/2020

Drainage method of refrigeration pipe during cold storage installation

Before the cold storage is installed, the refrigeration pipe must be thoroughly removed. The rust and dirt on the inner and outer walls of the pipe must be removed, and the inner wall must be kept dry.

08/20/2020

Safe use and maintenance of air conditioning pressure control device in computer room

Pressure controller, also known as pressure relay, is an electrical switch controlled by a pressure signal. When the suction and discharge pressures of the air-conditioning compressor in the computer room exceed their normal working pressure range,

06/21/2020

[Experience] What happens if the compressor suction pressure is too high and the discharge pressure is too high

[Experience] What happens if the compressor suction pressure is too high and the discharge pressure is too high Compressor suction pressure is too high, discharge pressure is too high 1. Too much refrigerant. Too much refrigerant will cause the suction pressure and discharge pressure to be too high at the same time. This is because when too much refrigerant fills the reservoir, it will occupy a part of the condenser volume, reducing the heat dissipation area and causing the condenser Poor condensation. Discharge excess refrigerant from the low-pressure side.

08/12/2020

Precautions when handling industrial chiller refrigerant

1. Before starting the refrigeration compressor of the chiller to pump the refrigerant, short-circuit the contacts of the pressure relay and the oil pressure difference relay on the refrigeration compressor control circuit.

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

06/29/2020

Several causes of compressor burning

03/01/2021

Matters needing attention

1.Oil and water protection of servo motor 1) The servo motor can be used in the place that will be attacked by water or oil drops, but it is not completely waterproof or oil-proof. Therefore, the servo motor should not be placed or used in the environment of water or oil invasion. 2) If the servo motor is connected to a reduction gear, the oil seal should be filled when using the servo motor to prevent the oil of the reduction gear from entering the servo motor 3) The cable of servo motor should not be immersed in oil or water.

07/23/2020

Refrigeration compressor motor burnout detection and repair methods, quickly collect it!

The core component of the refrigeration system is the compressor. The faults of the motor refrigeration compressor (hereinafter referred to as the compressor) can be divided into motor faults and mechanical faults (including crankshaft, connecting rod, piston, valve plate, cylinder head gasket, etc