Ecological dredging jet pump

A jet pump and ecological technology, applied in the field of jet pump, can solve problems such as secondary pollution, achieve the effects of high mixing efficiency, increase the radius of curvature, improve the driving pressure and suction capacity

Inactive Publication Date: 2009-11-04
中国船舶重工集团公司第七〇二研究所
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0006] In view of the problem that the existing dredging device needs other auxiliary devices to wash away the silt, which is likely to cause secondary pollution, the applicant

Method used

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Example Embodiment

[0021] The specific embodiments of the present invention will be further described below in conjunction with the drawings.

[0022] Coanda effect is also called Coanda effect or Coanda effect. Refers to the tendency of fluid to depart from the original flow direction and change to flow with the surface of a protruding object. When the fluid is sprayed outward in the direction tangent to the wall surface of the object or close to the tangential direction, when there is surface friction between the fluid and the surface of the object it flows through, the flow rate of the fluid will slow down, as long as the curvature of the surface of the object is not too large. The Bernoulli principle in fluid mechanics, the slowing of the flow rate will cause the fluid to flow against the solid wall near it.

[0023] The present invention utilizes the aforementioned Coanda effect of fluid mechanics to spray fluid outward along the tangential direction or close to the tangential direction to scour t

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Abstract

The invention discloses an ecological dredging jet pump, which comprises a jet water inlet pipe, a high-pressure distribution cavity and a silt outlet pipe which are connected in turn. Jet water is jetted into the outlet pipe through a primary jet spout and a secondary jet spout in the high-pressure distribution cavity, wherein the primary jet spout directly jets the jet water into the outlet pipe; and the secondary jet spout introduces the jet water into the outlet pipe through a streamline inlet. The ecological dredging jet pump utilizes the hydrodynamics Coanda effect to realize high speed flow, can avoid secondary pollution caused by using rotating components, and can be widely applied to ecological dredging and environment-friendly dredging of river courses, lakes and the like, and absorption of coal dust on the mine bottom of a coal mine.

Description

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Claims

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Application Information

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Owner 中国船舶重工集团公司第七〇二研究所
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