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Venturi mixer

A Venturi mixer and shrink tube technology, applied in fluid mixers, mixers, mixing methods, etc., can solve the problems of low mixing efficiency and uneven mixing of two liquids, and achieve the effect of uniform mixing and high efficiency

Pending Publication Date: 2018-02-23
HEBEI AGRICULTURAL UNIV.
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a Venturi mixer to solve the problem that the existing Venturi tube is easy to cause uneven mixing of two liquids and low mixing efficiency

Method used

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Embodiment Construction

[0034] Such as Figure 1-3 As shown, a Venturi mixer includes an inlet pipe 1, a throat pipe 2, a shrinkage pipe 3 and an outlet pipe 4 connected in sequence. A fertilizer inlet pipe 5 is installed on the pipe wall of the outlet pipe 4, which is used to feed fertilizer and mix with water. A fertilizer inlet pipe is marked in this specific embodiment, and a plurality of fertilizer inlet pipes can also be selected for installation in actual use. This is not the only limitation. The inner diameter of the outlet of the inlet pipe 1 is smaller than the inner diameter of the inlet, and the axis of the outlet and the axis of the inlet are not on the same straight line, which is an eccentric necking. The axis of the outlet of the inlet pipe 1 is located directly above the axis of the inlet to reduce pressure loss , the outlet of the inlet pipe is threadedly connected with the throat pipe 2, specifically, the inner diameter of the inlet pipe inlet is 80mm, and the inner diameter of th...

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Abstract

The invention discloses a venturi mixer. The venturi mixer comprises an inlet pipe, a throat pipe, a shrinking pipe and an outlet pipe which are connected sequentially; the pipe wall of the outlet pipe is communicated with a fertilizer inlet pipe; the inner diameter of the outlet of the inlet pipe is less than the inner diameter of the inlet; the axis of the outlet and the axis of the inlet are not on the same straight line; the outlet is connected with the throat pipe; a plurality of spiral channels are formed in the inner wall of the shrinking pipe; the outlet pipe is communicated with a tipof the shrinking pipe; and the communicating part of the outlet pipe and the shrinking pipe is a wall surface vertical to the axis of the shrinking pipe. When liquid is at the position of the outletpipe, the pressure is minimal and the speed is highest, 0 pressure, even negative pressure occurs at the position of a fertilizer inlet pipe at the moment, a fertilizer beating pump is started, fertilizer beating is conducted, liquid fertilizer and water flow rotating at high speed are rapidly mixed at the position of the outlet pipe at one moment, the aim of completely mixing fertilizer is fulfilled, and the venturi mixer is uniform in mixing and high in efficiency.

Description

technical field [0001] The invention relates to the field of Venturi tubes, in particular to a Venturi mixer. Background technique [0002] As an important gas-liquid or liquid-liquid mixing device, Venturi mixer has been widely used in engineering practice. A common Venturi mixer is a classic Venturi tube with a throat opening. The classic Venturi tube consists of the following parts: ①Inlet section: a short cylindrical section with a diameter of D; ②Constriction section: the shape is a Conical pipe with a cone angle of about 21°±2; ③ Throat: a short straight pipe section with a diameter of about 1 / 3 to 1 / 4D and a length equal to the pipe diameter; ④ Diffusion section: a cone angle of 8° to 15 ° conical tube. The mainstream fluid flows through the classic Venturi tube, and the incoming fluid flows in through the throat opening of the Venturi tube. The incoming fluid is introduced by using the pressure difference and mixed with the mainstream fluid in turbulent flow. In t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01F5/04B01F3/08
CPCB01F23/451B01F25/312512B01F25/312B01F2101/32
Inventor 蔡振江高亮李欢张梦索雪松袁洪波
Owner HEBEI AGRICULTURAL UNIV.