Danfoss Compressor DSF115A4ALH

07/16/2020

Vacuum leak test method for small cold storage equipment

Refrigeration systems with evaporating pressure gauges close to or below atmospheric pressure must be tested for vacuum leak tests, leaving the refrigeration equipment under proper vacuum for a certain period of time, reflecting and observing whether air has penetrated into the system from the reading of the vacuum pressure gauge for inspection The sealing performance of the cold storage equipment system.

03/11/2021

The main circuit fuse fusing is a common fault of SCR servo driver. The causes of fuse fusing are as follows

The "phase sequence" of power incoming line is incorrect. Due to the synchronization problem between the trigger pulse and the main circuit of SCR servo driver, there are strict requirements on the "phase sequence" of the input power supply. If the "phase sequence" is not correct, connecting the power supply may immediately cause the fuse of the main circuit of the driver to blow.

06/22/2020

Causes and judgement of centrifugal compressor surge

Causes and judgement of centrifugal compressor surge Causes of centrifugal compressor surge ①Flow<img src="{{media url=&quot;Causes_and_judgement_of_centrifugal_compressor_surge.jpg&quot;}}" alt="" /> Each centrifugal compressor corresponds to a curve between outlet pressure P and flow rate Q at different speeds n, as shown in Figure 2.

07/07/2020

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

07/11/2020

Working principle structure diagram of screw air compressor

Working principle structure diagram of screw air compressor 1. The basic structure and working principle of screw air compressor The commonly known screw compressor refers to the twin screw compressor. The basic mechanism of screw compressor: In the body of the compressor, a pair of intermeshing spiral rotors are arranged in parallel.

12/14/2022

What is a Memory Card?

A memory cards is an electronic data storage device used for storing digital information, typically using flash memory.

08/06/2020

Do you know the protection devices of these air-cooled chiller refrigeration compressors

1. Internal thermostat (installed inside the compressor)<br></br> In order to prevent the air-cooled chiller from running uninterruptedly for 24 hours, causing the compressor to operate under high load, the electromagnetic switch is not good,

07/04/2020

Several common failures reported by Taikang compressor customers

No matter what product business you do, customer feedback and market research are very important. If you come up with a product, the customer's response is not good, and no matter how much effort you make, how much publicity will be useless and a waste of time.

11/01/2024

Top 11 Solenoid Valve Manufacturers Worldwide

In modern industry, solenoid valves are widely used in industrial control systems to adjust the direction, flow, speed and other parameters of the medium.

10/16/2020

Copeland compressor valve composition

The air valve is an important part of the compressor and one of the easily damaged parts. Its quality directly affects the compressor's displacement, power consumption and operation reliability.