The working principle of laser chiller and installation precautions

The working principle of laser chiller and installation precautions

Laser chiller products have the characteristics of outstanding cooling effect and low cost of cooling work. Before installing and using laser chillers, first require relevant staff to be familiar with the performance of the equipment, understand the use of common sense, cherish the equipment, and operate carefully. The following is the introduction of the laser chiller from the chiller manufacturer.

　　 1. The working principle of laser chiller

The working principle of the laser chiller is to first inject a certain amount of water into the stainless steel water tank in the chiller, and then cool the water through the chiller's refrigeration system (the refrigeration compressor draws in the low-pressure and low-temperature refrigerant gas in the evaporator (refrigerant: R22) The cylinder, through the compressor, makes it a gas with higher pressure and temperature, and enters the condenser. The high-temperature and high-pressure refrigerant gas exchanges heat with the cooling air of the cooling medium to transfer the heat to the outside of the laser chiller for cooling. The gas is condensed into a high-pressure liquid) and then the low-temperature cooling water is sent to the laser equipment to be cooled by the water pump of the chiller. At this time, the water frozen by the chiller will take away the heat in the laser and the temperature will increase. Return to the water tank and then go through the cooling cycle of the chiller to achieve cooling.

　　 2. Installation precautions

　　 (a) Open the package and check whether the machine is in good condition and whether the accessories are complete. The installer must have relevant professional knowledge (or have professional guidance)

　　(B) Confirm that the equipment is properly grounded. Although the average operating current of the chiller is not large, its instantaneous operating current is sometimes as high as 6~10 amperes

　　(C) Unscrew the water injection port of the machine and add cooling water. Only neutral and pure water can be used, and no granular solids are allowed in the water.

　　(D) To protect the circulating water pump, it is strictly prohibited to run without water!

　　(E) Ensure that the air inlet and outlet channels of the chiller are smooth, and do not put foreign objects into the equipment!

　　(F) When an abnormal situation occurs, stop the operation of the machine first, cut off the power supply, and report the abnormal phenomenon to the professionals, and remember that you cannot continue to use it.

　　(G) When the water temperature is lower than the ambient temperature and the ambient humidity is high, the circulating water pipe and the surface of the cooled device will produce condensed water.

　　 Three, laser chiller cooling capacity

　　 1. As the name implies, the actual cooling capacity of the cooling system is the first indicator for the selection of laser cooling equipment.

　　2. Generally, we can calculate the calorific value of the laser according to the photoelectric conversion efficiency of the laser, and then choose.

　　P heat = P laser / μ

　　3. Sometimes, we directly determine the cooling capacity of the laser chiller based on the input rated power of the laser power supply minus the output power of the laser. For example, our commonly used radio frequency lasers and solid-state lasers will indicate the power supply voltage and current of the rated full power. Taking the coherent 70W radio frequency laser as an example, it requires a power input of 48V25A and an instantaneous 36A. The input power z*max 1200W can be calculated.

　　Four, laser chiller features and functions

　　 1. Exquisite design, convenient installation and operation;

　　2. The refrigeration system adopts international brand components, and the control accuracy is ±0.3℃～±0.5℃;

　　3. The circulating water system adopts industrial plastic anti-rust pumps, stainless steel water tanks, and PVC connecting materials, so there is no worry about corrosion;

　　4. With flow protection device, it can output signal to external equipment;

　　5. The temperature controller adopts an electronic temperature controller independently developed and produced. It has a variety of settings and fault prompt functions, only one key operation (open key), and the rest are automatically realized by the memory function.