YUKEN Vane Pump PVR150-L-F90-RLB-3480

06/25/2020

Basic knowledge of air energy

At present, the most commonly used vapor compression heat pumps, compressors, evaporators, condensers, and throttle valves are the four main components. Other auxiliary components include fans, four-way valves, liquid storage tanks, gas-liquid separators, copper pipes, and Protectors and electronic control parts used to ensure the normal operation of the machine, etc. Direct-heating models also include a water flow regulating valve. Schematic diagram of commercial air source heat pump system

11/21/2022

How do Centrifugal Fans Work?

The centrifugal fan is a device that uses the input mechanical energy to increase the pressure of the gas and discharge the gas.

08/20/2020

What are the factors that affect the cooling capacity of the chiller

A normal running chiller will always encounter a series of small problems after working for a period of time. The following is a brief description of the problem that affects the cooling capacity of the chiller. The influencing factors are as follows:

08/11/2020

The price of central air-conditioning varies greatly, and the purchase of central air-conditioning needs to consider 4 major factors

In this era of rising living standards, air conditioning has become an essential part of our lives and plays an important role in it. It is for this reason that the air-conditioning market has become more complicated

08/13/2020

Acceptance standards after the cold storage design and installation are completed

A newly built cold storage, when it's time for acceptance, it will definitely be anxious. How can it be accepted to ensure quality and quantity? The editor of okmarts.com will briefly introduce it below.

09/07/2020

How to distinguish whether air compressor oil has impurities

Everyone knows that screw air compressors have high requirements for oil. However, air compressors are easily mixed with others during use, which will not only affect the work of the air compressor, but also easily cause damage to the air compressor.

05/27/2024

EGR Valve Failure Symptoms: How to Diagnose and Address

The Exhaust Gas Recirculation (EGR) valve is a critical component in modern vehicle engines, playing a pivotal role in emissions control and engine performance. However, like any mechanical part, the EGR valve is susceptible to wear and failure over time.

08/27/2020

Compressor overhaul and correct installation matters, super complete and detailed

Content covered by compressor overhaul Compressors generally need to be overhauled after 12,000-26,000 hours of operation. In addition to all the work required for intermediate maintenance,

03/01/2021

The main difference between brushless DC motor and DC servo motor

Different definitions: (1) Brushless DC motor is a typical mechatronics product, which is composed of motor body and driver. Brushless motor refers to the motor without brush and commutator (or collector ring), also known as commutator less motor. As early as the 19th century, when the motor was born, the practical motor was the brushless form, that is, the AC squirrel cage asynchronous motor, which has been widely used. However, the asynchronous motor has many insurmountable defects, so that the development of motor technology is slow. The transistor was born in the middle of last century, so the brushless DC motor using transistor commutation circuit instead of brush and commutator came into being. This new type of brushless motor is called electronic commutation DC motor, which overcomes the defects of the first generation of brushless motor.

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth