CN206334558U

CN206334558U - A kind of well mixed venturi mixer

Info

Publication number: CN206334558U
Application number: CN201621406640.3U
Authority: CN
Inventors: 李航; 吴东垠
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 2016-12-21
Filing date: 2016-12-21
Publication date: 2017-07-18
Anticipated expiration: 2026-12-21

Abstract

A kind of well mixed venturi mixer, the introducing fluid for flowing out pipeline including the mainstream fluid flow ipe being sequentially communicated, mainstream fluid contraction section, mainstream fluid throat pipeline, mainstream fluid diffuser and mainstream fluid and being arranged on mainstream fluid throat pipeline upper end and communicating therewith introduces pipeline, it is characterised in that：Only described mainstream fluid throat inner-walls of duct has the built-in construction of semicircle, and 6 altogether, size is identical and is uniformly distributed in the inwall of mainstream fluid throat pipeline；Per two neighboring semicircle, the intersecting part of built-in construction constitutes sophisticated projection；The introducing pipeline is disposed therein on a sophisticated jut.The utility model can be effectively disturbed in reinforced pipe under conditions of increase circulation area as far as possible, promote the uniform mixing of fluid, it is to avoid due to flow resistance it is excessive caused by energy loss.

Description

A kind of well mixed venturi mixer

Technical field

The utility model belongs to venturi mixer technical field, and in particular to a kind of well mixed venturi mixing Device.

Background technology

Venturi mixer is a kind of important gas-liquid or liquid liquid mixing arrangement, has in practice in engineering and widely should With.Common venturi mixer is a classical venturi tube and the introducing pipe composition for being arranged on throat side, mainstream fluid By being flowed through in classical venturi tube and producing negative pressure in throat, introduce fluid and be inhaled into the presence of negative pressure through introducing pipe In throat's mainstream fluid, introduce fluid using the pressure official post of two kinds of fluids and blended with mainstream fluid.Existing venturi Blender causes fluid-mixing strength of turbulence small due to the boundary layer effect at the wall of fluid passage, easily causes mixing uneven With mixing efficiency it is low the problem of.

The content of the invention

In order to solve above-mentioned problems of the prior art, the purpose of this utility model, which is to provide in a kind of reinforced pipe, disturbs The dynamic and small Novel venturi mixer of flow resistance, can improve the uniformity and mixing efficiency of fluid-mixing in pipe.

In order to achieve the above object, the technical scheme that the utility model is used is：

A kind of well mixed venturi mixer, including be sequentially communicated mainstream fluid flow ipe 1, mainstream fluid receive Contracting section 2, mainstream fluid throat pipeline 3, mainstream fluid diffuser 4 and mainstream fluid flow out pipeline 5 and are arranged on mainstream fluid On throat's pipeline 3 and the introducing fluid that communicates therewith introduces pipeline 6, it is characterised in that：The only inwall of mainstream fluid throat 3 has The built-in construction 7 of semicircle, the built-in construction 7 of the semicircle amounts to six, and size is identical and is evenly distributed in mainstream fluid throat The inwall of pipeline 3, it is petal throat's pipeline 3 that the built-in construction 7 of six semicircles, which is connected with each other composition flow area,.Per phase The intersecting part of the adjacent built-in construction 7 of two semicircles constitutes sophisticated projection 8, and the introducing pipeline 6 is disposed therein a tip In projection 8.

The utility model has advantages below：In fluid passage, inwall is set up certain embedding structure and can strengthened at inwall The disturbance of fluid, but also reduce the circulation area of passage and increase the flow resistance of fluid.The utility model main flow The built-in construction 7 of semicircle that the inwall of fluid throat pipeline 3 is used, can under conditions of increase circulation area as far as possible effective reinforced pipe Interior disturbance, so that mainstream fluid and introducing fluid are well mixed.Sophisticated projection 8 constructs 7 as built in two neighboring semicircle and intersected Constituted, two sides of sophisticated projection 8 are sag vertical curve relative to the outer wall of throat's pipeline 3, therefore ensure that sufficiently large circulating face Product, avoids to reduce circulation area as cost and causes the excessive situation of flow resistance as far as possible.Meanwhile, sophisticated projection 8 can The fluid for flowing through throat is disturbed, traditional main flow runner mixing that fluid velocity is relatively caused slowly at wall is solved not The problem of, enhance the mixed effect in main flow Venturi tube pipe；Because the runner that construction 7 built in semicircle is formed is dashed forward except sophisticated Play that part is outer to be smooth curve, can largely reduce the flow resistance of fluid, thus efficiently avoid due to Energy loss caused by flow resistance is excessive；The built-in construction 7 of the semicircle is to cut open structure in cylinder in throat, it is easy to plus Work.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model venturi mixer.

Fig. 2 is the sectional view of the utility model venturi mixer main flow venturi throat.

Embodiment

The utility model is described in detail with reference to the accompanying drawings and detailed description.

As shown in figure 1, a kind of well mixed venturi mixer of the utility model, including the mainstream fluid being sequentially communicated Flow ipe 1, mainstream fluid contraction section 2, mainstream fluid throat pipeline 3, mainstream fluid diffuser 4 and mainstream fluid outflow pipeline 5 and it is arranged on the introducing fluid that on mainstream fluid throat pipeline 3 and communicates therewith and introduces pipeline 6.

As shown in Fig. 2 the internal face of mainstream fluid throat pipeline 3 has the built-in construction 7 of semicircle, the utility model is used as Preferred embodiment, the built-in construction 7 of the semicircle, altogether 6.The semicircle 7 sizes of built-in construction are identical and equably The inwall of mainstream fluid throat pipeline 3 is arranged in, sophisticated projection 8 and the built-in construction 7 of semicircle are alternately arranged, wherein sophisticated projection 8 The construction 7 built in two neighboring semicircle is intersecting to be constituted.Two sides of sophisticated projection 8 are concave curved relative to the outer wall of throat's pipeline 3 Line, therefore sufficiently large circulation area is ensure that, while the runner that the built-in construction 7 of semicircle is formed is smoothly in addition to jut Curve, greatly reduce flow resistance it is excessive caused by energy loss.

Sophisticated projection 8 can strengthen the disturbance of fluid near the internal face of main flow venturi throat pipeline 3, promote fluid Uniform mixing.Bigger closer to central axis fluid velocity in round tube, disturbance is stronger, and the introducing pipeline 6 is arranged on it In in a sophisticated projection 8, introducing fluid can introduce closer to the position of the central axis of mainstream fluid throat pipeline 3, have Beneficial to being sufficiently mixed for fluid.

Claims

1. a kind of well mixed venturi mixer, including the mainstream fluid flow ipe (1) that is sequentially communicated, mainstream fluid are received Contracting section (2), mainstream fluid throat pipeline (3), mainstream fluid diffuser (4) and mainstream fluid flow out pipeline (5) and are arranged on On mainstream fluid throat pipeline (3) and the introducing fluid that communicates therewith introduces pipeline (6), it is characterised in that：Only mainstream fluid Throat's pipeline (3) inwall has the built-in construction (7) of semicircle, and the built-in construction (7) of the semicircle amounts to six, and size is identical and equal The inwall of mainstream fluid throat pipeline (3) is distributed in evenly, and the built-in construction (7) of six semicircles is connected with each other composition circulation and cut Face is petal throat's pipeline (3)；Per two neighboring semicircle, the intersecting part of built-in construction (7) constitutes sophisticated projection (8), The introducing pipeline (6) is disposed therein on a sophisticated projection (8).