Schneider Contactor LC1N2501B6N

08/20/2020

How to prevent moisture caused by steam penetration in cold storage projects

Under normal circumstances, excessive air humidity causes rapid growth of mold, moldy food, and corrosion of cold storage building materials. Therefore, the moisture-proof of cold storage projects is also particularly important.

07/20/2020

How to eliminate the difficult problems of the salt spray test chamber

Many people will blame the poor quality of the salt spray test box in actual use. However, the relevant departments have used statistical data to tell us that more than 50% of these problems are caused by operation. Only 5% is the quality problem of the salt spray test box itself.

07/07/2020

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

09/10/2020

Advantages of air compressor equipped with permanent magnet synchronous motor

1. High efficiency The high efficiency mentioned here does not only mean that the efficiency of the rated power point is higher than that of the ordinary three-phase asynchronous frequency modulation motor, but refers to its average efficiency in the entire speed range. The excitation field of the permanent magnet synchronous motor is provided by the permanent magnet.

08/17/2020

Analysis of four major technical schemes of cold storage ammonia to fluorine system

According to the characteristics of different primary ammonia refrigeration systems, building structure, insulation characteristics, use requirements (such as in the logistics cold storage, does not affect normal business storage)

07/23/2020

Trouble and overhaul of piston refrigeration compressor

1. The refrigeration compressor cannot start normally Maintenance ideas 　　 1. First, check whether it is caused by low power supply voltage or poor connection of the motor circuit. If it is indeed that the grid voltage is too low, restart after the grid voltage returns to normal: If the line is in poor contact, the connection between the line and the motor should be detected and repaired.

06/18/2025

The meaning of pipe diameter De, DN, d, ф

The meaning of pipe diameter De, DN, d, ф<br></br> The respective ranges of De, DN, d, ф<br></br> 　　De-- PPR, PE pipe, polypropylene pipe outer diameter<br></br>

08/24/2020

Reason analysis of refrigeration compressor can not start or stop soon after start

1) First check the main circuit. Whether the power supply has power, whether the voltage is normal, whether the fuse has been blown due to starting overload, whether the air switch has tripped, whether the switch contacts are good, and whether the power supply is missing phase. Observe the voltmeter and ammeter when starting. When the small-scale refrigeration and air-conditioning equipment does not have an ammeter or electric meter, a multimeter or electric pen can be used to check the power supply. When the power supply voltage is too low, the compressor will not start.

08/20/2020

What do I need to prepare for the purchase of a high-speed refrigerated centrifuge

The high-speed refrigerated centrifuge plays an important role in the collection of microorganisms, cell debris, cells, large organelles, sulfuric acid precipitates, and immunoprecipitates.

06/02/2025

okmarts.com platform compressor technology experts tell you why the air conditioner can be cooled

okmarts.com platform compressor technology experts tell you why the air conditioner can be cooled In the summer, I believe that many people's feelings must be hot, scorching heat, sweating, etc. At this time, air conditioning is naturally essential equipment. If the air conditioner in your home is not cooling, then the air conditioner becomes a decoration.