Can the valve still be used properly if there is a large temperature difference between its two ends?
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The lowest temperature at one end of the valve is 50°C, while the highest temperature at the other end is 300°C. If there is a temperature difference between these two ends, it is said that stress will be generated, which can cause the valve to fail to open. I would appreciate advice from those with experience in this area; thank you!
Under normal conditions, there is a large pressure difference before and after the valve, with little change in temperature； What is this operating condition? There is such a large temperature difference before and after the valve – where does all this heat loss go? Does the valve have a temperature reduction device? With such high heat loss, many valves cannot withstand it; you can ask the manufacturer which valves are suitable for use under such operating conditions.
This phenomenon is abnormal; when the valve is open, there should be no temperature difference. A temperature difference does occur when the valve is closed, but it shouldn’t be this large.
How can such a large temperature difference occur? There can’t be such a large temperature difference even if the valve is completely closed, right?
As a supplementary note, it is a blind valve; during normal operation the temperature is around 60°C, and there is a temperature difference at both ends while the bed is being heated
As a supplementary note, it is a blind valve; during normal operation the temperature is around 60°C, and there is a temperature difference at both ends while the bed is being heated
Where is such a separation line? If the valve is closed, high-temperature heat conduction will heat the valve. If it’s turned on, then the problem mentioned by the original poster doesn’t exist at all.
How can there be such a large temperature difference? What are the process conditions?
Under normal circumstances, there shouldn’t be such a large temperature difference; this situation can only occur at one end during the heating process, for a certain period of time.
Could you show us a diagram of the valve’s structure? Could it be that the thermal insulation layer has such low heat conductivity, resulting in such a large temperature difference?