Danfoss Compressor SZ147A3CN

03/13/2021

Working principle of servo drive

At present, most servo drivers use digital signal processor (DSP) as the control core, which can achieve more complex control algorithm, digitalization, networking and intellectualization. The drive circuit based on intelligent power module (IPM) is widely used in power devices.

08/24/2020

Normal operating conditions of the refrigeration system in operation

1. The suction temperature of the compressor should be 5-15℃ higher than the evaporation temperature and 5-10℃ higher than the brine temperature;

09/08/2020

Compressed air filter selection method and related technical parameters

In the air compressor system, the air processed by the air compressor cannot be used directly. It must be purified by the dryer filter before it can be put into the air equipment. The role of the filter in the air compressor system is to remove liquid water, dust, oil, dust and other impurities in the compressed air.

08/14/2020

Factors affecting the boiling heat transfer of refrigerant liquid

In the evaporator, the heat of the cooled medium is transferred to the refrigerant through the heat transfer wall, so that the liquid refrigerant absorbs heat and vaporizes.

09/10/2020

In the next two years, the world's bearing demand will reach 76 billion US dollars

According to the forecast analysis report of the global bearing market by the industry research company, the global demand for ball bearings, roller bearings and sliding bearings is expected to grow at an annual rate of 8.5%, reaching 76 billion US dollars by 2014, of which unloading The largest demand for ball bearings and roller bearings.

06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

08/18/2020

How to use low temperature chiller to improve the cooling effect of air cooler

Generally, air coolers are installed outdoors. Therefore, the water temperature of the water storage tray will rise under the high temperature radiation of the scorching sun, which seriously affects the cooling effect.

08/01/2024

Excavator Hydraulic System: Installation, Cleaning, and Testing

The hydraulic system is composed of various hydraulic components, which are organically connected by pipes, joints, oil pipes and other components.

09/10/2020

Existing problems in the promotion and application of water source heat pumps in my country

As a new type of cooling and heating method, water source heat pump should be quite mature and no problem from a technical point of view, especially from the point of view of heat pump units. However, considering China's national conditions and the promotion and application of water source heat pump cooling and heating as a whole system, there are still some problems:

12/17/2022

How to Fix a Damaged Memory Card?

Memory cards are very convenient for data storage and transfer. What should we do if we find that our memory cards are damaged