[Q&A Question 125] 2017.05.05
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This post was last edited by 955559 on 2017-7-21 22:59. [Q&A Question 125] 2017.05.05: What is the function of the valve spring? The reference answers will be visible after responding; points are awarded by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) ⑴ At the end of the compressor’s suction process or exhaust process, the force exerted by the valve spring causes the suction valve or exhaust valve to settle onto its seat in a timely manner, thereby creating a seal that prevents gas from flowing back. ⑵A preload pressure is generated to ensure the sealing of the valve disc against the valve seat; only when this preload pressure holds the valve disc firmly in place against the valve seat can a backpressure difference be created on both sides of the valve disc, and it is this backpressure difference that constitutes the main sealing force keeping the valve disc in close contact with the valve seat. ⑶Reduce the impact force of the valve disc on the lift baffle when it opens. Scoring criteria: 2 Wealth points for incorrect attempts; 3–8 points for *incomplete* answers. 10 Wealth points for correct answers, provided with a detailed explanation; 15–20 Wealth points if the answer is correct but lacks sufficient details. Please score according to these criteria. 2017 Q&A Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have begun) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html
Supports the valve disc and controls the opening of the valve
Its function is to use the elastic force of the spring to compress the air valve
When the air valve is in the fully closed position, the spring presses the valve disc against the valve seat, providing some sealing force； When the valve disc closes, the spring force overcomes the pressure difference between the gas inside and outside the cylinder, thereby closing the valve disc against the valve seat in a timely manner.
When the air valve opens or closes, the spring enables it to return quickly and easily
Balance the pressure before and after the air valve to enable it to open and close automatically at a set pressure
Use the elastic force of the spring to press the air valve tightly
Its function is to compress the air valve using the elastic force of the spring.
The spring helps the valve disc to rebound quickly and maintains the seal.
It uses the elastic force of a spring to press down the air valve.