压缩机的一个最新发展是无阀式压缩机,简称TVC(The Valveless compressor)。 TVC是一种单螺杆油浸式压缩机,其构造原理见图l。螺杆由原动机驱动,并拨动一对带齿的转子(称阀转子)随着转动。其工作原理可简述如下:气体从进气管被吸入,并充满螺杆的一个螺道,当阀转子的齿A转到一定位置时,螺道被封闭,此即吸入过程。螺杆继续旋转,阀转子的齿使螺道体积减小时,开始压缩过程。当体积减至设计值时,螺杆的螺道通过排气口与排气管路连通。设计排气点的位置取决于排量控制滑块的位置,从而确定其压缩体积比。由于有两个阀转子,压缩过程是对称进行的,所以作用在螺杆上的径向力是完全平衡的。如果在结 One of the latest developments in compressors is the valveless compressor, or The Valveless compressor TVC for short. TVC is a single-screw oil-immersed compressor, the construction principle shown in Figure l. The screw is driven by the prime mover and pushes a pair of toothed rotors (called valve rotors) as they rotate. Its working principle can be summarized as follows: The gas is sucked into the gas inlet pipe and filled with a screw of the screw. When the valve rotor tooth A turns to a certain position, the screw is closed, that is to say, the suction process. Screw continues to rotate, the valve rotor teeth to reduce the volume of the screw, start the compression process. When the volume is reduced to the design value, the screw of the screw communicates with the exhaust line through the exhaust port. The location of the exhaust point is determined by the position of the displacement control slider to determine its compression volume ratio. Due to the two valve rotors, the compression process is symmetrical, so the radial forces acting on the screw are completely balanced. If at the end