CN1019899C

CN1019899C - Fluid mass-transfer mixer

Info

Publication number: CN1019899C
Application number: CN 89101943
Authority: CN
Inventors: 孙厚钧
Original assignee: Beijing University of Civil Engineering and Architecture
Current assignee: Beijing University of Civil Engineering and Architecture
Priority date: 1989-04-06
Filing date: 1989-04-06
Publication date: 1993-02-17
Anticipated expiration: 2004-04-06
Also published as: CN1046103A

Abstract

The present invention relates to a fluid mass-transfer mixer which overcomes the universal problems of various existing reactors. The fluid mass-transfer mixer causes various kinds of fluid to reciprocate and oscillate in a special flow passage by the characteristic of the fluid, and various kinds of fluid are thoroughly mixed. The present invention can be widely used for the mixing processes of fluid materials in various fields, such as a water supply treatment technology, a wastewater treatment technology, chemical industries, food, pharmaceutical industries, etc. When the fluid mass-transfer mixer is used for stirring and mixing water flows in the water flows comprising mud, channel deposition is reduced.

Description

Fluid mass-transfer mixer

The present invention relates to a kind of blender.

Fluid mass-transfer mixer is about giving water treatment and waste water treatment process, the equipment of accelerating fluid material blending process in chemical industry, food and the medical industry.In various reactors, primary something is to make the various mixing of materials that participate in reaction even, to quicken the matter exchange between them.Traditional same category of device mostly is mechanical agitator, utilizes motor drives to revolve oar and rotates, and material is stirred.But its shortcoming is: 1. convey materials needs motor, pump and pipeline, and stirring work needs motor and paddle in addition, and two complete equipments form plant equipment and repeat, waste of energy.2. wearing and tearing and disconnected wound often take place in the mixer movable part, and influence is produced continuously.3. system is difficult to airtightly, and easily volatilization is leaked, and influences labour protection safety.

Purpose of the present invention just provides a kind of fluid mass-transfer mixer, and it utilizes fluid (contain liquid, gas, reach heterogeneous body) flow behavior, different fluid is come and gone in ad hoc duct agitate, and fully mixes.

The present invention utilizes in the hydrodynamics turbulent flow to entrainment characteristic with attached wall, principle according to " amplification-feedback-vibration " in the Theory of Automatic Control, make multistage bistable fluidic oscillator, fluid (containing liquid, gas and heterogeneous body) is back and forth agitated in runner, in reactor, circle round periodically, thereby quicken its mixed process, reach matter exchange uniformly comprehensively.

Specify below in conjunction with accompanying drawing.The present invention can be the plural serial stage oscillator, can determine as required its progression to illustrate below with three-level generator.Shown in accompanying drawing (1) and (2): one-level input port 1, one-level jet ozzle 2, control road 3, a left side, left side water conservancy diversion core 4, feedback road 5, a left side, a left side is adopted and is pressed mouth 6, one-level shunting wedge 7, output road 8, a left side, secondary input port 9, secondary jets ozzle 10, secondary shunting wedge 11, three grades of input ports 12, output road 13, a left side, three grades of jet ozzles 14, left side feedback channel 15, left side feedback is adopted and is pressed hole 16, right feedback is adopted and is pressed hole 17, right feedback channel 18, right output road 19, right output road 20, the right side is adopted and is pressed hole 21, right feedback road 22, right water conservancy diversion core 23, right control road 24, back plate 25, dull and stereotyped 26, dividing plate 27, working plate 28 and header board 29.

Whole device is made of five block length square plates, whole fluid passage is arranged on working plate 28, this tunnel-shaped is like one three rank helper, topmost is circle hole shape one-level input port 1, be thinner one-level jet ozzle 2 below, the runner of ozzle below 2 is divided into control road 3, a left side, intermediate flow channel and right control road 24, and left water conservancy diversion core 4 left sides of triangle are feedback roads 5, a left side, right water conservancy diversion core 23 the right are right feedback roads 22, and right water conservancy diversion core 23 is than left water conservancy diversion core 4 more close center lines.The one-level shunting wedge 7 of triangle is divided into output road, a left side 8 and right output road 20 with above-mentioned intermediate flow channel, the meet in two runners and

feedback road

5,22 be respectively a left side adopt press mouthfuls 6 and the right side adopt and press mouthfuls 21, have in the secondary input of circle hole shape 9 and the secondary jets ozzle 10 of broad on the one-level shunting wedge 7,

output road

8,20 converges herein, and is divided into output road, a left side 13 and right output road 19 once more by secondary shunting wedge 11.Secondary shunting wedge 11 shapes triangular in shape have three grades of input ports 12 of circle hole shape and three grades of wideer jet ozzles 14 on this shunting wedge,

output road

13,19 converges herein, if repeatedly series connection will be shunted wedge by next stage and be shunted once more.Ozzle 14 is a triangle with the lower flow channel, and feedback was adopted and pressed

hole

16,17 about these runner two middle side parts had respectively.On dull and stereotyped 26 left and right

sides feedback channel

15,18 is arranged, they are by the corresponding through hole on the dividing plate 27, respectively with about feedback adopt and

press hole

16,17 to be communicated with, also respectively with about feed back

road

5,22 and be communicated with.Header board 29 and back plate 25 seal whole runner.On header board 29, an inlet hole is respectively arranged with ozzles at different levels corresponding position.

This blender course of work is as follows: by ozzle 2 ejection at a high speed, the high exit flow of its characteristic Reynold's number changes critical Reynolds number to fluid after the pump pressurization enters one-level input port 1, is in turbulent flow (or turbulent flow) state.Because of turbulent flow entrainments effect, the stationary fluid of the left and right sides all will be entrainmented into to be gone in the jet main flow, because of right water conservancy diversion core 23 than left water conservancy diversion core 4 more close center lines, the main current flow thigh will be attached to right water conservancy diversion core 23 left walls and get on, by 20 outputs of output road, the right side, simultaneously, the right side is adopted and is pressed mouth 21 to control 24 transmission, one pressure pulse to the right through feedback road 22, the right side, main flow is switched to the left side, and main flow changes into by 8 outputs of output road, has realized the negative-feedback switching.Then a left side is adopted and is pressed hole 6 to control 3 transmission, one pressure pulse left through feedback road 5, a left side, and negative-feedback is switched once more, thereby forms reciprocating vibration.

To penetrate the high velocity stream thigh of big flow from second level jet ozzle 10 by input port, the second level 9, and the

output road

8,20 of the first order promptly constitutes the control road of second level amplifier, impels big flow stream thigh at 13,19 alternately impinges in output road.

By third level input port 12, will penetrate the high velocity stream thigh of bigger flow from third level jet ozzle 14, since the control in

output road

13,19, the alternately jet of the bigger flow of formation, and if plural serial stage, its amount of jet will increase step by step.Feedback is adopted the stagnation pressure of pressing

hole

16,17 to adopt greatlyyer, carries out degree of depth negative-feedback by

feedback channel

15,18, thereby has guaranteed replacing of vibration.

First order input flow rate is less, is easy to starting of oscillation, is the vibration filp-flop stage, and second level input flow rate is bigger, is interstage amplifier section, and third level input flow rate is bigger, is power-amplifier stage.

Inlet hole promotes aeration usefulness for biochemical industry and aquaculture oxygen intake, also can suck for micro-medicament and use.

When back and forth switch in runner the first order and the second level, the blend composition of work liquid and desire processing is fully mixed, the third level is mopped up output about then making working media alternately.

The present invention has the following advantages:

1. saved the electric energy that drives mixer.

2. because of movable parts such as no rotating shaft blades in the runner,, can boost productivity so there are not problems such as wearing and tearing, consume.

3. have closure, help keeping food and drink and water hygiene, have the occasion of toxicity, then can prevent contamination at liquid.

Accompanying drawing (1) is the runner schematic diagram on the working plate 28.One-level input port 1, one-level jet ozzle 2, control road 3, a left side, left side water conservancy diversion core 4, feedback road 5, a left side, a left side is adopted and is pressed mouth 6, one-level shunting wedge 7, output road 8, a left side, secondary input port 9, secondary jets ozzle 10, secondary shunting wedge 11, three grades of input ports 12, output road 13, a left side, three grades of jet ozzles 14, left side feedback channel 15, left side feedback is adopted and is pressed hole 16, right feedback is adopted and is pressed hole 17, right feedback channel 18, output road 19, a left side, right output road 20, the right side is adopted and is pressed mouth 21, right feedback road 22, right water conservancy diversion core 23, right control road 24.

Accompanying drawing (2) is this device side view.Back plate 25, flat board 26, dividing plate 27, working plate 28 and header board 29.

Claims

1, a kind of blender, by back plate 25, dull and stereotyped 26, dividing plate 27, working plate 28 and header board 29 are formed, it is characterized in that on working plate 28, having plural serial stage vibration runner, from the one-level jet ozzle 2 that is communicated with one-level input port 1, water conservancy diversion core 4,23 are divided into a left side with runner feeds back road 5, intermediate flow channel and right feedback road 22, right water conservancy diversion core 23 is than left water conservancy diversion core 4 more close center lines, output road 8 and 20 about one-level shunting wedge 7 is divided into intermediate flow channel, the two respectively with about the feedback road 5,22 are communicated with, the secondary jets ozzle 10 that secondary input port 9 and broad are arranged on the shunting wedge 7, output road 8,20 converge herein, and be divided into output road 13 and 19 once more by secondary shunting wedge 11, on the secondary shunting wedge 11 three grades of input ports 12 and three grades of wideer jet ozzles 14 are arranged, output road 13,19 converge herein, and shunt wedge by next stage and shunt once more, in the end one-level triangle runner both sides have a left side respectively, right feedback is adopted and is pressed hole 16,17, on dull and stereotyped 26, feedback channel 15 is arranged, 18, corresponding through hole is arranged on the dividing plate 23, they make to adopt presses hole 16,17 and the feedback road 5,22 respectively with feedback channel 15,18 are communicated with, back plate 25 and header board 29 seal whole runner, with every grade of ozzle corresponding position an inlet hole are arranged on header board 29.