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Euclon helps you analyze the difference between water temperature machine and oil temperature machin
Usually, people like to use the term "mold temperature machine" to refer to two types of machines: water temperature machine and oil temperature machine. The two are fundamentally different. This article will analyze the differences between water temperature machine and oil temperature machine from three aspects: heat transfer medium, temperature control range, and advantages and disadvantages. We hope it will be helpful to you.
Analyze the difference between water temperature machine and oil temperature machine:
Heat transfer medium:
Literal interpretation suggests that there are two types of devices, one for heating water and the other for heating oil Using different heat transfer media to control temperature, one is easy to use water; A type of thermal oil that needs to be purchased.
Temperature control range:
Everyone knows that the boiling point of water is 98 ℃, and under closed cycle conditions, the water temperature can rise to 120 ℃ By applying pressure, the boiling point of water will correspondingly increase. The higher the pressure, the higher the boiling point of water. Based on this principle, the maximum operating temperature and pressure of the water temperature machine are as follows: when the pressure is below 0.4Mpa, the maximum operating temperature of the water temperature machine is 120 ℃; The maximum operating temperature of the water temperature machine is 150 ℃ from 0.6Mpa to 0.8Mpa; At 0.9Mpa-1.3Mpa, the highest operating temperature for the water temperature machine is 180 ℃ That is to say, the maximum operating temperature of the water temperature machine is 180 ℃.
The boiling point of oil is relatively much higher, and the boiling point of conventional heat transfer oil can also reach 350 ℃. According to different production processes, Oklon Refrigeration has three major models: 200 ℃ oil temperature machine, 300 ℃ high temperature oil temperature machine, and 350 ℃ ultra-high temperature oil temperature machine. There are various specifications and models under it, up to more than 30 models Oil temperature machines, due to their high boiling point, do not require pressurization and typically operate at pressures not exceeding 0.5 MPa.
Advantages and disadvantages analysis:
The water temperature machine uses water as the heat transfer medium, without the need to purchase a heat transfer medium, and is clean. In terms of operating costs, 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 precisely because of this that its insulation characteristics are slightly inferior to oil temperature machines. In this regard, regardless of the upper or lower, the rapid heating and cooling speed basically offset the difference between the two. Here is a brief explanation.
However, the boiling point of water limits the application range of water temperature machines. For temperature control ranges below 180 ℃, water temperature machines can be completely replaced The temperature control range of the oil temperature machine is wide, and its application range is relatively wider.
In summary, in terms of operating costs and cleanliness, it is recommended to use a water temperature machine for temperature control processes below 180 ℃ After six months of continuous use, ordinary heat transfer oils will gradually experience aging, greatly reducing their heat transfer performance. Better heat transfer oils are usually replaced once a year. If the process requires a high temperature control range, an oil temperature machine can only be selected
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