With the rapid development of society, our country has been inseparable from science and technology. Now electric butterfly valves are almost all over the world, and they are used in many places in our daily life. Over the years, electric butterfly valve manufacturers have developed rapidly. More and more manufacturers are committed to electric butterfly valves. In such a development situation, the strong are the final winners.
Shanghai Dongfeng electric butterfly valve is made of pure natural live oil resistant butyl cyanide. It is light and beautiful in shape and easy to install. It is suitable for the installation of fan coil, bellows, cabinet, motor, gas pipe, air pipe and other equipment in the pipeline support, which can effectively reduce the transmission of equipment and pipeline vibration to the floor, wall and other structures, It can effectively isolate the transmission of vibration and solid noise. It is also used on hoisting equipment with uneven centers. In today's society, we can say that there are electric butterfly valves all around us. Because in the environment we now live in, we can not do without technology and the production of electric butterfly valves.
Because they can benefit mankind. Test method of electric butterfly valve: the vibration damping performance of electric butterfly valve shall be evaluated by vibration damping test. The vibration reduction test is usually carried out only when the electric butterfly valve is newly designed and trial produced, and it is not necessary to test the electric butterfly valve one by one after mass production; Only type test is needed.
However, for electric butterfly valves that are particularly important or must be adjusted in the vibration reduction test to meet the technical requirements, they should be tested one by one. The vibration reduction test should be carried out on the whole machine, so that the test conditions are the actual working conditions; The vibration reduction test can also be carried out on a special vibration reduction test bench, that is, to simulate the actual working conditions, artificially manufacture the vibration source, and compare the difference between the electric butterfly valve and the electric butterfly valve 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 using eccentric wheel rotation to drive the slider to generate reciprocating displacement excitation, using centrifugal force generated by unbalanced rotor to excite vibration, and using compressed air blower to excite vibration.
Use loudspeakers to excite, use electromagnetic induction to excite, or use special vibration table to excite, 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 is measured. If the vibration law follows the sine function (such as the vibration caused by rotor imbalance), the speed and acceleration can be calculated as long as the amplitude and frequency are measured.