Relationship between Plate Heat Exchanger and Refrigeration System of High and Low Temperature Humidity Test Chamber 1. Provide the power supply in the area of ​​providing additional voltage in the environment of the best installation site provided by the supplier. (Standard source: 380V/50HZ) 2. In order to avoid electric shock or malfunctions and malfunctions, do not turn on the power before the device and wiring are completed. In addition, self-assembly, processing, transformation, or repairs are prohibited, otherwise there is a risk of abnormal actions, electric shocks, or fire. 3. The wiring must be correct and must be grounded. Non-grounding can cause electric shocks, accidents with incorrect actions, abnormal display, or large errors in measurements. The refrigeration cycle of the high-low temperature damp heat test box The refrigeration cycle of the high-low temperature damp heat test box adopts the reverse Karo cycle, which consists of two isothermal processes and two adiabatic processes. The process is as follows: The first and final refrigerant absorbs heat from the higher temperature object isothermally through the evaporator, so that the temperature of the cooled object decreases. This cycle is repeated to achieve cooling. The design of the refrigeration system is based on the application of energy-adjustment technology, which can not only guarantee the normal operation of the refrigeration test unit, but also can effectively adjust the energy consumption and cooling capacity of the refrigeration system so that the refrigeration system can be kept in the best operating state and eventually reach a dynamic state. balance. Second, the refrigerant is adiabatically compressed by the compressor to a higher pressure, and the consumed power increases the temperature of the exhaust gas. Third, after the refrigerant is heat-exchanged with the medium isothermally and around the medium to transfer the heat to the surrounding medium, the refrigerant passes through the adiabatic expansion valve to do work, and the refrigerant temperature decreases. The advantages of plate heat exchangers for high-low temperature damp heat test chambers: 1, plate heat exchanger of the equivalent diameter is small, large flow disturbances, in the smaller Reynolds number and the formation of turbulent flow, so the heat transfer coefficient is high, generally 1.5 times the shell and tube heat exchanger; 2, 25% of the shell-and-tube heat exchangers with compact structure, small volume and only about the same heat transfer area; 3, the refrigerant charge is small. In the refrigeration system, our company adopts the Danish “Danfoss†plate dual cascade brazed heat exchanger which is currently the world’s most advanced in the country. This overcomes the disadvantages of large size, poor heat transfer, and low efficiency of the domestically produced low temperature facility. Masking tape, also known as painter's tape, is a type of pressure-sensitive tape made of a thin and easy-to-tear paper, and an easily released pressure-sensitive adhesive. It is available in a variety of widths. It is used mainly in painting, to mask off areas that should not be painted. The adhesive is the key element to its usefulness, as it allows the tape to be easily removed without leaving residue or damaging the surface to which it is applied.Most painting operations will require a tape in the 50 range. Household masking tape is made of an even weaker paper and lower-grade adhesive. Masking Tape, Kraft Tape, White Tape, Blue Masking Tape, Paper Masking Tape, China Kraft Tape, China White Tape, China Blue Masking Tape, China Paper Masking Tape Shenzhen Chengxing Packing & Material Co.,Ltd , https://www.cxpack.com