Kassel Helps You Analyze The Difference Between Water Temperature Machine And Oil Temperature Machine
Under normal circumstances, everyone likes to use the mold temperature machine to cover the two models of water temperature machine and oil temperature machine. The two are essentially different. This article will discuss the heat transfer medium, temperature control range, advantages and disadvantages. Analyze three aspects to analyze the difference between the water temperature machine and the oil temperature machine, I hope to help you. Analyze the difference between the water temperature machine and the oil temperature machine:
1. Heat transfer medium:
Literally interpreted, it can be considered that the two are two types of equipment for heating water and heating oil. Different heat transfer media are used to control the temperature, one is water that is easy to use; the other is heat transfer oil that needs to be purchased.
2. Temperature control range:
As we all know, the boiling point of water is 98°C, and under closed cycle conditions, the water temperature can rise to 120°C. Through the form of pressurization, the boiling point of water will be increased accordingly. The higher the pressure, the higher the boiling point of water. , Based on this principle, the maximum operating temperature and pressure corresponding to the water temperature machine are as follows: when the temperature is below 0.4Mpa, the maximum operating temperature is 120°C water temperature machine; when 0.6Mpa-0.8 Mpa, the maximum operating temperature is 150°C water temperature machine ; When 0.9Mpa-1.3Mpa, the maximum operating temperature is 180°C water temperature machine. That is to say, the maximum operating temperature of the water temperature machine is 180°C.
The boiling point of oil is relatively much higher, and the boiling point of conventional heat transfer oil can also reach 350 ℃. There are three major models of ultra-high temperature oil temperature machine, under which there are various models of different specifications, up to more than 30 models. Because of its high boiling point, the oil temperature machine does not need to be pressurized, and the operating pressure generally does not exceed 0.5Mpa.
3. Analysis of advantages and disadvantages:
The water temperature machine uses water as the heat transfer medium. It does not need to purchase the heat transfer medium, and it is clean. In terms of operating cost, it is superior to the oil temperature machine. The specific heat capacity of water is relatively high, and the heating rate is relatively fast. It is because of this , its thermal insulation properties are also slightly inferior to the oil temperature machine. From this aspect, the two are indistinguishable. The rapid temperature rise and the speed of heat dissipation basically offset the gap between the two.
However, the boiling point of water limits the application range of the water temperature machine. For the temperature control range below 180 °C, the water temperature machine can be completely replaced. The oil temperature machine has a wide temperature control range, and its application range is relatively wider.
To sum up, in terms of operating cost and cleanliness, it is recommended to use a water temperature machine for the temperature control process below 180 °C. The general heat transfer oil will gradually age after half a year of continuous use, and its heat transfer performance will be greatly reduced. A little heat transfer oil is basically replaced once a year. If the process requires a higher temperature control range, you can only choose an oil temperature machine.
