41results about How to "Increase the effective circulation area" patented technology

The invention provides a steam-water separation corrugated plate, comprising two crook-free corrugated plates.Middle corrugated segments of the two crook-free corrugated plates are connected through a connecting plate, straight segments at two ends of a combination of the two crook-free corrugated plates are tightly fixed side by side, and a double-layer hollow plate structure is formed; a drain passage forms in the hollow between the two crook-free corrugated plates, and the double-layer hollow plate structure is provided with a drain port.The invention also provides a corrugated plate steam-water separation device.The corrugated plate steam-water separation device is compact in structure and easy to assemble, special crooked drain channel part is not required any more, a flow field in a passage of the separation device is smoother, and resistance coefficient of the passage of the corrugated plates is reduced; manufacture precision of the corrugated plates is improved, and production cost is reduced; with the long drain passage, effective pass area of a drain channel is enlarged, and the ability of the corrugated plate separation device to drain water is improved; the corrugated plate steam-water separation device is useful in separating water particles in steam / water or air-water mixed medium.

The present invention relates to an electrostatic discharge protection device utilizing multicrystal silicon layout to hierarchically construct electrostatic current dumping channel. It is characterized by that in P trap on the P-type substrate N+injection zone several plane array arrangements is set, along peripheral side wall of every N+injection zone a shallow trench isolation STI with square-ring type is set, over P trap a grid-shaped multicrystal silicon layer is set, the inner wall of said grid is correspondent to the outer wall position of said shallow trench isolation STI. The grid node position of said multicrystal silicon layer is P-type multicrystal silicon zone or N-type multicrystal silicon zone, and between the multicrystal silicon layer and P-type substrate a SiO2 oxide layer is set.

The invention provides a steam-water separation corrugated plate, comprising two crook-free corrugated plates.Middle corrugated segments of the two crook-free corrugated plates are connected through a connecting plate, straight segments at two ends of a combination of the two crook-free corrugated plates are tightly fixed side by side, and a double-layer hollow plate structure is formed; a drain passage forms in the hollow between the two crook-free corrugated plates, and the double-layer hollow plate structure is provided with a drain port.The invention also provides a corrugated plate steam-water separation device.The corrugated plate steam-water separation device is compact in structure and easy to assemble, special crooked drain channel part is not required any more, a flow field in a passage of the separation device is smoother, and resistance coefficient of the passage of the corrugated plates is reduced; manufacture precision of the corrugated plates is improved, and production cost is reduced; with the long drain passage, effective pass area of a drain channel is enlarged, and the ability of the corrugated plate separation device to drain water is improved; the corrugated plate steam-water separation device is useful in separating water particles in steam / water or air-water mixed medium.

The invention discloses a small separation blade for stability enhancement of a rotor of an axial flow compressor. The small separation blade comprises rotor blades, a rotor blade hub, small separation blade bodies and a fixing device; each small separation blade body is installed between every two rotor blades in a rotor blade grating channel, and flow control of the small separation blade bodies over fluid in rotor channels is carried out; the axial positions of the small separation blade bodies are located at the axial chord length positions of rotor blade roots at the 20% positions of the front edges of the rotor blade channels, the circumferential positions are located at the circumferential chord length positions of the rotor blade roots at the 4.6% positions of suction force faces of the rotor blades, and the small separation blade roots are connected with the rotor blade hub; the blade tops of the small separation blade bodies are connected with the suction force faces of the rotor blades through connecting pieces so that the small separation blade bodies can be fixed; and a complex inducing vortex structure generated after air flow flows through the small separation blade bodies will disturb flowing laminar sub-layers of interface layers of the suction force face of a main blade, and strengthening of tubulence energy enables flowing of laminar flow of a boundary layer to be changed into turbulent flow in advance, so that separation of the boundary layer of the laminar flow is restrained or delayed, and the steady operation margin of a compressor is improved.