Non-restrictive in-line mixer

Abstract

The invention discloses an unobstructed pipeline mixer. The unobstructed pipeline mixer comprises a pipe body and a dispensing pipe, the dispensing pipe is arranged at the front end portion of the pipe body is provided with a mixing chamber connected with the dispensing pipe, the contact part of the sidewall of the pipe body with the mixing chamber is provided with a spiral flow guiding slot extending along the length direction of the pipe body, the front end of the spiral flow guiding slot is provided with a liquid inlet connected with the inner side of the pipe body, the rear end of the spiral flow guiding slot is provided with a liquid outlet connected with the inner side of the pipe body, and the liquid inlet is provided with a water collecting device for guiding a fluid in the pipe body into the mixing chamber. The unobstructed pipeline mixer has the advantages of simple structure, small energy consumption, and no water head loss, and vortex formed by the spiral flow guiding slot improves the liquid and medicine mixing effect and increases the flow speed of a mixed fluid, and the change of the flow amount does not influence the mixing effect in the mixer.

Description

technical field [0001] The invention belongs to the field of dosing and mixing devices, in particular to a non-impeding pipeline mixer in the field of environmental protection water supply and drainage. Background technique [0002] The traditional mixing methods in water treatment mainly include mixing pool mixing, mechanical stirring mixing, water pump mixing and tubular mixing. The tubular mixing has a simple structure, no moving parts, and can achieve static mixing without consuming kinetic energy. Mixed methods are more commonly used. Most of the existing tubular mixers are equipped with multi-section fixed blades in the pipeline, so that the water flow is divided into pairs, and at the same time, the vortex reverse rotation and cross flow are generated, which can cause the water flow to collide and spread the coagulant in all directions. The mixing effect is effectively enhanced; however, this type of mixer usually has a complex structure, and the internal blades occu...

AI Technical Summary

Problems solved by technology

Most of the existing tubular mixers are equipped with multi-section fixed blades in the pipeline, so that the water flow is divided into pairs, and at the same time, the vortex reverse rotation and cross flow are generated, which can cause the water flow to collide and spread the coagulant in all directions. The mixing effect is effectively enhanced; however, this type of mixer usually has a complex structure, and the internal blades occupy a certain space, which creates a certain resistance to the fluid in the tube, and must achieve a certain head loss during the mixing process to achieve a good mixing effect. Head loss and mixing effect change drastically with pipeline flow, which not only greatly increases energy consumption, but also forms a bottleneck restricting flow

In general, this kind of traditional pipeline mixer runs for many years, not only the energy consumption cost is astonishing, the maintenance cost is high, but also the water supply flow suffers a large invisible loss, which restricts the development of social economy

[0003] Chinese patent CN103446903A discloses a swirling spray type non-obstructed pipeline mixer. The side wall of the pipe body is provided with a spray hole communicating with the side wall of the dosing pipe. The spray hole is helical along the circumference of the pipe body. Or circular distribution of swirling spraying holes, the overall structure of the mixer is simple, energy saving is obvious, and can achieve a better mixing effect, but its effective working range is narrow, that is, the medicine in the dosing tube and the medicine in the tube The liquid efficient mixing area is narrow, and when the liquid flow in the tube is small, the mixing effect of the medicament and the liquid will also be affected

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