Heavy oil gather steam injection process on thermal regulator are basic requirements should in the small flow has large step-down function, and in big flow to get small pressure drop. Existing steam flow regulator are difficult to travel in the whole range efficiently regulate steam flow and exists in vibration and erosion problems. In the analysis of domestic and international high-pressure differential flow regulator structure, working principle and questions basis, developed new high-pressure difference labyrinth steam flow regulator. When regulator opening degree is from 0% to 100% percentage (travel is changing), flow percentage is from 0% up to 100%, Conversely, dropped, the whole trip nearly 100mm can be convenient adjusted, and realized the high-pressure differential low flow. The valve inlet Pin = 9.4 MPa, Outlet Pout = 320 MPa, measured valve noise 70dB (ordinary regulator noise achieves to above 84dB), fundamentally relieve the erosion and noise.
2011-04-02