In order to provide a very high vacuum, it is necessary to add a cold trap on the diffusion pump. Compared with the cold trap which is cooled by a liquid gas, the thermoelectric cooler can improve the vacuum degree by about 1 orders of magnitude.
In metallurgy, chemical industry, machinery manufacturing industry, often need to accurately determine the humidity of the gas. The dew point hygrometer is the key component in the measuring device. The utility model has the advantages of simple structure, high precision, etc., and the utility model has the advantages of simple structure and high precision. He can measure the dew point temperature of -90 degrees.
In order to repeat the measurement, the dew point is needed. At this time, the cooling effect of the mirror can be realized by changing the current direction of the cooling stack. However, the need to pay attention to the reverse current should generally be less than the positive power, so as not to overheat the components of the cooling reactor.
The zero temperature meter must be used in thermocouple temperature measuring device. Generally use ice water mixture as a zero point, it is not convenient to use. The utility model can be made into an artificial zero point by a thermoelectric refrigerator. Make the measurement convenient and reliable.
For example, in the oil and chemical industry to measure various condenser, the physical properties of the oil, such as oil pour point, pour point oil, cold, light diesel filter, in the measurement instrument and the analyzer also used in thermoelectric refrigeration. The cooling of the oil tank of the precision machine tool can also be used to provide the cold source with thermoelectric refrigeration.
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