The 5WG-M chiller is composed of low-speed rotating electric machine, drive parts, ejector components, cylinder block, intake and exhaust valve, rocker arm assembly, etc. The whole structure is based on the principle of convenient processing, reliable operation and reduced cold loss. . It adopts two kinds of driving modes: mechanical drive and pneumatic, that is, the shifting piston moves in the cylinder according to a certain regularity, and is equipped with a timely intake and exhaust process to realize the refrigeration cycle. Refrigeration temperature and cooling capacity test method The cooling temperature is directly measured by the hydrogen pressure thermometer on the secondary cold head. The lowest measurement temperature is 14K. You can also use the ferroniobium thermometer to display the value through a digital multimeter, and then check the ferroniobium thermometer index table. The lowest measurable temperature can reach 1K. The cooling capacity test uses a heat balance method. Winding 20 to 30 turns of the heating wire on the secondary cold head of the refrigerator, and heating the heating wire with an external regulated power supply (Note: When the temperature After being reduced to the lowest level, it can be heated for 1 hour. After the temperature is re-stabilized, the temperature value at this time and the power at this time are recorded. This heating power value is the cooling capacity of the machine at this temperature. These data can be recorded and linked into a curve. Temperature measuring bubble; hydrogen vapor pressure thermometer; heating wire; transistor regulated power supply; ammeter; secondary cold head; vacuum cover cooling time under no-load condition, vacuum cover vacuum degree 0.7Pa, using the above measurement method for 5W machine A set of data is measured.
It can be clearly seen that the temperature drops sharply in about 35 minutes, and reaches 14K in about 45 minutes. After that, it slowly decreases and approaches 9K. Cooling capacity and temperature When the secondary cold head temperature is reduced to the minimum, the heating wire is heated after 1 hour of standby. When the temperature is 15.5K, 18K, 20.5K, the measured voltage and current are recorded separately, and the secondary cooling capacity is obtained by converting the power into the second. Due to the existence of various losses, the linear relationship between the cooling capacity and the temperature is no longer a one-dimensional equation. The secondary expansion ring of the expansion ring is a key component of the piston assembly of the machine. It is the source of the sealing force between the secondary piston ring and the cylinder wall. At the same time, the 5WG-M chiller has passed the long-term high and low temperature working environment and mechanical vibration test, MTBFZ15000H, and has the conditions for industrial production. The 5WG-M chiller currently produced has been widely used in production, scientific research and other fields. After many performance tests, the model has good reliability and low vibration. Looking into the future, the machine can be used as a breakthrough to develop a cooler with a larger cooling capacity. It can be predicted that GM refrigerators will have a great development in China in the near future, driven by the development of low-temperature superconducting and magnetic levitation systems.
Acrylic Dispersant Polymers & Thickeners
Kylin Chemicals manufactures & supplies high performance Acrylic dispersant polymers & thickeners, serves a variety of use in the following applications.
Detergents and Laundry
- Acrylic acid - Maleic acid copolymer, counterparts for BASF Sokalan CP45, Sokalan CP5, Sokalan CP7, Acusol 497N
- Acrylic acid homopolymer, counterparts for BASF Sokalan PA 25 CL, DOW Acusol 445, Acusol 445N
Cosmetics and Personal Care
- Cross-linked polyacrylate polymer, counterparts for Carbomer 934, Carbomer 940, Carbomer 941, Carbomer 980, Carbomer 981, Carbomer 1342, Carbomer 1382 and Carbomer 2020, etc.
Our advanced DCS manufacturing systems, advanced analytical instruments and quality systems assure the quality, stability and sustainability to your supply chain needs.
Acrylic Dispersant Polymers,Acrylic Dispersant Thickeners,Ethylene Diamine Tetraacetic Acid,Kl Carbomer
Kylin Chemicals Co., Ltd. , https://www.kylin-chemicals.com