Problems with the reaction vessel
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The problems with the reactor are as follows: The designer initially overestimated the pressure that the reactor would need to withstand, which led to the manufacturer designing a reactor capable of withstanding 12 MPa. However, it has been found that the maximum pressure required is actually around 0.5 MPa; therefore, a more accurate pressure gauge was installed, one with a range of 1.5 MPa. The question now is: if, accidentally, the pressure reaches 5 MPa – which is below the explosion-proof membrane’s limit of 12 MPa – then no automatic pressure relief will occur. In such a case, could this have a significant impact on the pressure gauge? Is there any potential safety hazard? ?
1. The difference between the design parameters and the actual operating parameters of the LZ reaction kettle is simply too large! It should be noted that a pressure rating of 12 MPa falls within the high-pressure range, whereas 0.5 MPa belongs to the low-pressure range. 2. Under normal circumstances, the \"maximum operating pressure is 0.5 MPa, with a possible value of up to 5.0 MPa in case of accidents,\" which indicates serious problems with the control of the reaction pressure or reaction temperature! It is very dangerous for a container to operate within such large pressure fluctuations. 3. When the normal operating pressure is 0.5 MPa, it is appropriate to use a pressure gauge with a range of 1.5 MPa (or 1.6 MPa); however, it should be noted that the accuracy class of the pressure gauge must not be lower than grade 2.5. 4. When the reaction pressure reaches 5.0 MPa, a pressure gauge with a range of 1.5 MPa will definitely be damaged (the pointer will reach its limit and bend), rendering it unusable and requiring replacement. 5. Such operating conditions are extremely unsafe; in other words, it represents serious violations of safety procedures. I guess LZ’s reactor isn’t a device used in actual production facilities; it’s probably for laboratory use? I hope the original poster can raise their safety awareness to prevent accidents!
First and foremost, safety factors must not be ignored; a pressure gauge designed for lower pressures certainly cannot handle higher ones. Secondly, you can refer to the opinions on the second floor; they are very detailed.
Exceeding the range can cause the copper tubing of the pressure gauge to rupture, leading to dangerous leaks of material
Be sure to remember: safety first is an eternal theme! ! ! ! !
:) What was said upstairs is right – safety first! ! ! ! ! ! ! ! ! ! !
Thank you all for your support and suggestions!
If the pressure gauge operates beyond its range, the copper tubes of the gauge can break. According to the original poster, this range exceeds the acceptable limit by too much, which poses a risk of material leakage