ULVAC Vacuum Pump UR3601-TT

09/08/2020

Advantages and disadvantages of closed motor and open motor of air compressor

Air compressor enclosed motor: Protection grade: IP44, IP54, IP55 　　 Advantages: 　　1) Wide application range. The air compressor driven by a closed motor can be used in places with poor environment. For example, there is a lot of dust and the fibers are flying. Factories and mining industries with corrosive gas and other surrounding areas.

05/06/2023

How Water Source Heat Pumps Work

A heat pump is a device that transfers thermal energy from a low-grade heat source to a high-grade heat source. Heat pumps, driven by electricity, usually first obtain low-grade heat energy from natural air, water or soil, and then provide high-grade heat energy.

06/14/2020

In doing so, there is no need to worry about reversing the refrigeration compressor! (technology sharing)

In doing so, there is no need to worry about reversing the refrigeration compressor! (technology sharing) When the refrigeration compressor unit is in normal operation, it should also be checked accordingly to prevent the refrigeration compressor from re器2䀀
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07/02/2020

The compressor lacks oil, so the harm is so great!

The compressor lacks oil, so the harm is so great! Compressors are complex machines that operate at high speeds. Ensuring adequate lubrication of moving parts such as compressor crankshafts, bearings, connecting rods, and pistons is the basic requirement for maintaining normal operation of the machine.

06/29/2020

How the compressor works

08/03/2020

Compressor exhaust overheating is not that complicated, just for these few reasons!

The main reasons for the exhaust temperature overheating are as follows:<br></br> 　　 High return air temperature, large heating capacity of the motor, high compression ratio, high condensation pressure, improper refrigerant selection

08/14/2020

What are the noteworthy issues in central air conditioning design

1. Variable air volume ratio 　　 The air-conditioning system runs under partial load conditions most of the year, that is to say, the fans, ducts and air volume of the end of the variable air volume system are mostly between the maximum and minimum air volume limits.

06/21/2020

Electronic expansion valve application and installation precautions

Electronic expansion valve application and installation precautions <img src="{{media url=&quot;wysiwyg/Electronic_expansion_valve_application_and_installation_precautions.png&quot;}}" alt="" /> Advantages of electronic expansion valve: The energy efficiency ratio is improved during high-frequency and low-frequency operation; the reliability of the compressor is improved, the conditions of oil return, liquid return, and exhaust temperature are too high; the operation of the whole machine is reliable, and the problems of water blowing, condensation, and overload are reduced. ; Increased adaptability to changes in refrigerant quantity; Enhanced comfort, short defrost time;

06/20/2020

The main reason for the slow heating of air conditioners

There are several reasons for the slow heating of air conditioners: 　　 The dirt of the transpiration device and the condenser is too thick, which will cause air flow blockage, affect the heat declaration, and make the air conditioning heating a big discount. The filter is not cleaned for a long time<img src="{{media url=&quot;The_main_reason_for_the_slow_heating_of_air_conditioners.jpg&quot;}}" alt="" />

09/07/2020

Lubricant-Protector of Industrial Equipment

Reducing friction is one of the main purposes of lubricating oil. In addition, lubricating oil has other functions. For example, the lubricating oil film can prevent rust; prevent metal from being corroded; the lubricating oil can also play a cleaning role.