Hydraulic stability improvement based groove type loudspeaker shaped antivibration structure and method thereof

Abstract

The invention relates to a hydraulic stability improvement based groove type loudspeaker shaped antivibration structure and a method thereof. The hydraulic stability improvement based groove type loudspeaker shaped antivibration structure comprises a water inlet tank and a water pump, wherein a loudspeaker-shaped pipe on the water pump extends into the water inlet tank, and a loudspeaker-shaped opening is formed in one end, arranged in the water inlet tank, of the loudspeaker-shaped pipe; an antivibration device which is loudspeaker-shaped is arranged in the water inlet tank and is positionedunder the loudspeaker opening; the upper half part of the antivibration device is an elliptic curved surface, and a point tangent line of a bus of the elliptic curved surface is vertical to the upperbottom surface of the antivibration device; the lower half part of the antivibration device is a circular arc shaped curved surface, and the curvature of the circular arc shaped curved surface is beyond that of the elliptic curved surface; a bus of the circular arc shaped curved surface is tangent to the a connecting point of the bus of the elliptic curved surface; and a plurality of grooves whichpenetrate the elliptic curved surface and the circular arc shaped curved surface are formed in the sidewall of the antivibration device. With the adoption of the structure, the bottom-attached vortexbelow the loudspeaker-shaped pipe can be obviously removed, and moreover, the water stream can be adjusted to turn, and thus the water inflowing conditions, including good inflowing angle and high flowing speed uniformity, can be achieved.

Description

technical field [0001] The invention relates to a groove-type trumpet-shaped anti-vibration structure based on improving hydraulic stability and a method thereof, in particular to a tool holder with an adjustable socket. Background technique [0002] Inlet pool is the most common structure in medium and small vertical axial flow pumping stations. The uneven distribution of flow velocity in the inlet pool or the appearance of vortex will not only significantly reduce the energy performance and cavitation performance of the pump, but also may cause the pump unit to vibrate or even fail to work normally. Only with good water inlet conditions can the safe and efficient operation of the pump be guaranteed. In the specific engineering design, in order to obtain better water pump inflow conditions and eliminate the bottom vortex below the bell mouth, diversion cones and cross plates are often added to the bell mouth. [0003] In order to improve the flow state of the water inlet ...

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Problems solved by technology

Moreover, at present, the pressure pulsation is mainly improved by changing the pump parameters or additional measures. There is basically no involvement in improving the uniformity of the pump inflow and improving the inflow angle by adding engineering measures inside and outside the inlet pool, thereby reducing the vibration of the pump.

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