Main inspection methods of electric butterfly valve?
Today, the manufacturer of the electric butterfly valve will share with you the testing method of the electric butterfly valve: whether the vibration reduction performance of the electric butterfly valve is good or bad should be verified through the vibration reduction test. The vibration reduction test is usually stopped only when the electric butterfly valve is newly designed and trial produced, and it is not necessary to stop the test one by one for the electric butterfly valve after mass consumption; Just stop the typing experiment. However, for the electric butterfly valves that are particularly important, or the electric butterfly valves that need to stop conditioning in the vibration reduction test before reaching the technical request, they should be tested one by one. It is better to stop the vibration reduction experiment on the whole machine, so the experimental condition is the theoretical working condition; The vibration reduction experiment can also be stopped on a special vibration reduction test bench, that is, to simulate the theoretical working conditions, artificially manufacture the vibration source, and compare the difference between the electric butterfly valve without it and the electric butterfly valve installed, so as to evaluate the advantages and disadvantages of the electric butterfly valve.
According to different situations, various vibration excitation methods can be used to artificially produce vibration sources, such as the use of eccentric wheel rotation to drive the sliding block to generate reciprocating displacement excitation, the use of centripetal force generated by unbalanced rotor excitation, the use of compressed air blower excitation, the use of loudspeaker excitation, the use of electromagnetic induction excitation, or the use of special vibration table excitation, etc. The parameters to be measured during vibration test include frequency, amplitude, velocity, acceleration, etc., and sometimes the stress or strain of some parts of the machine. Assuming that the vibration law follows a sine function (such as the vibration caused by the rotor imbalance), the speed and acceleration can be calculated by measuring the amplitude and frequency.
The above contents are sorted out and issued by Dongfeng Xizhen Electric Butterfly Valve Co., Ltd. If you need to reprint, please indicate the source. Thank you.