Hitachi Level Meter Hitachi-70

06/14/2020

The role of lubricating oil

The role of lubricating oil 1) A dynamic seal is formed between the screw and the compression chamber and the male and female screws to reduce the leakage of refrigerant from the high-pressure side to the low-pressure side during the compression process.

09/10/2020

Application of FPGA in the position control of DC motor

In a DC motor control system, the controlled quantity is generally the speed of the motor, and the purpose of control is to keep the speed of the motor at the required fixed value. But in the actual production process

06/21/2020

Will the air compressor explode_The cause and measures of air compressor explosion

Will the air compressor explode_The cause and measures of air compressor explosion Will the air compressor explode <img src="{{media url=&quot;Will_the_air_compressor_explode_The_cause_and_measures_of_air_compressor_explosion.jpg&quot;}}" alt="" /> 　　 The air compressor will explode. However, air compressors are not easy to explode. The accident rate of the air storage tank of the piston type air compressor is very small. Only when the air pressure switch and the safety valve of the air compressor are broken at the same time will the air compressor have the possibility of explosion.

09/04/2020

From the buying habits of motor users, how to better promote high-efficiency motors

Motor energy saving is a key project in industrial energy saving, and the motor system energy saving project is also one of the key energy saving projects designated by my country.

07/30/2024

Air Conditioning & Refrigeration Solenoid Valves: Structure and Principle

The article describes the structure and working principle of the three-way two-position solenoid valve used in refrigerators and the four-way reversing valve used in heat pumps (i.e. heat pump reversing valve).

01/15/2021

Danfoss extends its Turbocor® training and support resources with 12 new e-lessons

Danfoss has released new online training materials for technicians working with its Turbocor® oil-free compressors—further extending the support and learning resources to help users and OEMs maintain long-lasting performance.

07/29/2023

Quiet Your Heat Pump: Causes and Solutions to Heat Pump Noise

Heat pumps are an excellent investment for heating and cooling your home or office. They are energy-efficient, eco-friendly and cost-effective compared to other HVAC systems. However, one of the common concerns that homeowners have is the noise generated by heat pumps.

06/29/2020

How the compressor works

07/20/2020

Causes and solutions of air conditioning not heating

The air conditioner has the functions of cooling and heating. Heating in winter and cooling in summer. Life is called a comfortable one. However, why is the air conditioner not heating? In the cold winter, the air conditioner is turned on for heating, but the cold wind blows out, which makes people tremble more.

04/05/2024

Analysis and Solutions to AC Servo Motor Vibration Faults

AC servo motors are used in closed environments and are usually not easily damaged. But if the AC servo motor has vibration failure, what is the reason?