CN201762316U

CN201762316U - Ring jet flow type fermentation tank and fermentation stirring system used thereby

Info

Publication number: CN201762316U
Application number: CN 201020518501
Authority: CN
Inventors: 颜金钰
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-09-04
Filing date: 2010-09-04
Publication date: 2011-03-16
Anticipated expiration: 2020-09-04

Abstract

The utility model relates to a ring jet flow type fermentation tank, comprising a tank body; a stirring shaft is disposed in the center of the tank body; stirrers are arranged on the stirring shaft; an air inlet pipe is disposed on the bottom of the tank body; a ring jet device is disposed on the bottom of the tank body; the ring jet device includes a circular main pipeline communicated with the air inlet pipe and a plurality of jet tubes equipped on the circular main pipeline; the plural jet tubes jet to form a jet flow pattern which is consistent with the rotation direction of stirrers when the fermentation tank stirs the fermentation liquid; stirrers include axial flow stirrers and radial flow stirrers which are respectively used for causing the fermentation liquid to generate axial flow and radial flow; and a defoaming paddle is arranged on the stirring shaft. The utility model also relates to a fermentation stirring system. The fermentation tank provided by the technical scheme could form the jet flow pattern which is consistent with the rotation direction of the stirrer through the ring jet device in the tank body so as to reduce the resistance of the stirrer, save energy consumption and eliminate blind angle and blind area on the bottom of the fermentation tank.

Description

The fermentation stirring system of ring spray jet type fermentor tank and application thereof

Technical field

The utility model relates to fermentation stirring technique field, relates in particular to a kind of ring spray jet type fermentor tank of band spirt device of air and the fermentation stirring system of application thereof.

Background technology

Present traditional mechanical agitating fermentation tank all adopts the intake method of single tube, rely on strong stirring to break up bubble and carry out mass transfer, heat transfer, like this to the requirement of agitator than higher, normally adopt the disc turbine formula agitator of high shear force.The shearing force of this dependence agitator comes bubble is broken up the scheme of pulverizing in the prior art, and requiring to stir must be strong, thereby also just needs big power of motor, thereby the energy consumption of fermentor tank is just always than higher; And disc turbine formula agitator all is a radial type, can not well mix up and down, thereby usually have dead angle and blind area in the bottom of fermentor tank.

The utility model content

The purpose of this utility model provides the fermentation stirring system of a kind of ring spray jet type fermentor tank and application thereof, to solve the defective that the stirring system energy consumption remains high and may have dead angle and blind area in the prior art.

In order to achieve the above object, the technical solution of the utility model proposes a kind of ring spray jet type fermentor tank, comprise tank body, described tank body central authorities are provided with stir shaft, described stir shaft is provided with agitator, described tank base is provided with inlet pipe, the bottom of described tank body also is provided with the ring spray device, described ring spray device is made up of several jet tubes that ring main road that communicates with described inlet pipe and distribution are installed on the described ring main road, and described several jet tubes jet formation injection flow pattern consistent with the sense of rotation of described agitator when this fermentor tank stirs fermented liquid; Described agitator specifically comprises axial flow agitator and runoff agitator, is respectively applied for to make fermented liquid produce axial flow and radial flow; Also be provided with the froth breaking oar on the described stir shaft.

A kind of fermentation stirring system of the corresponding proposition of the technical solution of the utility model, it comprises motor, speed reduction unit, shaft coupling, mechanical seal, also comprise aforesaid fermentor tank, the stir shaft of described fermentor tank connects with the output shaft of described speed reduction unit by described shaft coupling.

The fermentor tank that technical solutions of the utility model provide can form the injection flow pattern consistent with the agitator sense of rotation by the intravital ring spray device of jar, thereby can reduce the resistance of agitator, reach the purpose of saving energy consumption, can also eliminate the dead angle and the blind area of fermentor tank bottom simultaneously.

Description of drawings

Fig. 1 is the internal structure synoptic diagram of the utility model ring spray jet type fermentor tank embodiment;

Fig. 2 is the structure iron of jet tube in embodiment illustrated in fig. 1;

Fig. 3 A～3B is the front view and the vertical view of middle axial flow agitator embodiment illustrated in fig. 1;

Fig. 4 A～4B is the front view and the vertical view of the simple signal of middle runoff agitator embodiment illustrated in fig. 1;

Fig. 5 A～5B is the front view and the vertical view of middle froth breaking oar embodiment illustrated in fig. 1;

Fig. 6 is the example structure figure of the utility model fermentation stirring system.

Embodiment

Following examples are used to illustrate the utility model, but are not used for limiting scope of the present utility model.

Fig. 1 is the internal structure synoptic diagram of the utility model ring spray jet type fermentor tank embodiment, and as shown in the figure, the ring spray jet type fermentor tank of present embodiment comprises tank body 11, and tank body 11 inherent middle positions are provided with stir shaft 12, and stir shaft 12 is provided with a plurality of agitators.Tank body 11 inherent bottom positions are provided with inlet pipe 16, also be provided with ring spray device 14 simultaneously, the ring spray device by the ring main road 141 that communicates with inlet pipe 16 (only demonstrating cross-sectional shape among Fig. 1) and several (for example dozens ofs) the jet tube 142 be installed on the ring main road 141 that distributes forms and this several jet tube 142 jet formation injection flow pattern consistent when fermentor tank stirring fermented liquid with the sense of rotation of agitator.Tuyere by jet tube 142 is set be towards realizing this effect, and for example, the horizontal plane projection of tuyeres that makes all jet tubes 142 is all along the tangential setting of agitator sense of rotation (clockwise).The ring spray jet type fermentor tank of present embodiment sprays the flow pattern ring spray device 14 consistent with the agitator sense of rotation by being provided with in the bottom, not only can eliminate dead angle and blind area that the fermentor tank bottom exists usually, the more important thing is the stirring resistance that can also reduce agitator, thereby reach the purpose of saving energy consumption.

In addition, jet tube 141 structures in the foregoing description as shown in Figure 2, it comprises nozzle 1411 and conduit 1412; Wherein, nozzle 1411 communicates with the ring main road 141 of ring spray device 14; 1412 in conduit envelopes nozzle 1411, and it is long tubular and has trumpet-shaped opening, and the position of the close nozzle in the below of conduit 1412 also is provided with perforate 1413.This design makes from the air of inlet pipe 16, form jet through 141 backs, ring main road by nozzle 1411, and in conduit 1412, form vacuum, and the fermented liquid of jet tube 141 outsides enters the cavity of conduit 1412 from the perforate 1413 of conduit 1412 belows by the effect of negative pressure of vacuum, the gas that gushes out with nozzle 1411 is from the hydraucone ejection of conduit 1412 then, Pen Chu gas is a kind of emulsified state of gas-liquid mixed like this, thereby can reach the effect of breaing up bubble, and then make air to be fully used.

Further, the agitator in the present embodiment ring spray jet type fermentor tank specifically comprises: two axial flow agitators 131 and a runoff agitator 132.Wherein, two axial flow agitators 131 separately are arranged on about mid-way of stir shaft 12, are used to stir fermented liquid and make it mainly produce axial flow; The axial flow agitator 131 that adopts in the present embodiment is shown in the front view and vertical view of Fig. 3 A～3B, its impeller has adopted existing arc shape (not using among the figure) design in the prior art, has very strong axial flow ability, and owing to adopted fairshaped design, can reduce unnecessary resistance, it also has very big shadow area simultaneously, thereby the upwards string that can prevent bubble effectively rises, and then improve the residence time of air in fermented liquid, reach the purpose that improves the dissolved oxygen effect, saves the air use.Continue as shown in Figure 1, runoff agitator 132 approximately is arranged on the terminal position of stir shaft 12, is used to stir fermented liquid and makes it mainly produce radial flow; The runoff agitator 132 that adopts in the present embodiment is shown in the rough schematic of Fig. 4 A～4B, its blade then is to have done improvement on the basis of existing structure, milder parabolic (shown in Fig. 4 A) has been adopted in the cross section, thereby can reduce the resistance of liquid, the bubble that reduces the blade back produces, and also more saves energy consumption compared with traditional form; Need to prove, the projection relation of Fig. 4 A, 4B is not corresponding one by one utterly, the feature part of the two figure runoff agitator that only is used to show that present embodiment adopts herein, those skilled in the art should finely understand the concrete structure that present embodiment adopts the runoff agitator with reference to prior art and feature herein.

Continue as shown in Figure 1, the ring spray jet type fermentor tank of present embodiment also is provided with froth breaking oar 15 in the upper end portion at stir shaft 12 close tank body 11 tops, it is arranged at the top of two axial flow agitators 131, concrete structure then shown in the front view and vertical view of Fig. 5 A～5B, employing be existing froth breaking oar design in the prior art.By the setting of froth breaking oar 15, the further perfect defoaming effect of present embodiment fermentor tank to fermented liquid in the jar.So not only can prevent to stop up various pipelines too much because of foam; and can reduce in the tank body owing to foam too much produces extra pressure; this extra pressure can reduce the inside and outside pressure difference of tank body usually; thereby can offset the air pressure of the gas that enters tank body; and then reduce the tolerance that enters tank body, so set up froth breaking oar 15 in the present embodiment and also can effectively improve stirring efficiency.

At last, the ring spray jet type fermentor tank of present embodiment is in the lower end of stir shaft 12, specifically below axial flow agitator 131 and runoff agitator 132 between also be provided with a plummer-block 17 that is used to support stir shaft 12, the outer rim of plummer-block 17 is fixed on the inwall of tank body 11, thereby make that the rotation of stir shaft 12 each agitators of drive and froth breaking oar is more stable, improved the reliability of total system.

In sum, the fermentor tank of present embodiment forms the injection flow pattern consistent with the agitator sense of rotation by the ring spray device is set in tank body, thereby can reduce the resistance of agitator, reach the purpose of saving energy consumption, can also eliminate the dead angle and the blind area of fermentor tank bottom simultaneously; Jet tube design by nozzle and horn-like opening conduit can make fermented liquid and jet flow stream thorough mixing form emulsified state, thereby play the effect of breaing up bubble; Further, make the fermented liquid of fermentor tank obtain multi-faceted abundant stirring, promoted the effect that stirs fermentation by two axial flow agitators and a runoff agitator are set on stir shaft; The defoaming effect that is provided with fermented liquid perfect by the froth breaking oar and effectively improved stirring efficiency in addition; By being set, plummer-block promoted the reliability that stirs at last.

The utility model also provides a kind of fermentation stirring system of using above-mentioned ring spray jet type fermentor tank, and the embodiment structure comprises motor 21, speed reduction unit 22, shaft coupling 23, mechanical seal 24 and fermentor tank as shown in Figure 6.Wherein, the internal structure and the previous embodiment of fermentor tank are identical, repeat no more herein.12 of stir shafts as for fermentor tank are to connect by the output shaft of shaft coupling 23 with speed reduction unit 22, realize the purpose of power transmission.In addition, whole speed reduction unit 22 is tank body 11 tops that are installed in fermentor tank by flange bottom 25; 24 enclosure interior at speed reduction unit 22 of mechanical seal are arranged between shaft coupling 23 and the flange bottom 25, play the effect of a water-tight.In fact except that fermentor tank itself, being provided with fully of other mechanical parts of fermentation stirring system can be used for reference homogeneous system of the prior art, be not herein but be the fermentor tank of previous embodiment, therefore also no longer given unnecessary details for the fermentation stirring system herein with key of the present utility model.

More than be preferred forms of the present utility model, according to the disclosed content of the utility model, those of ordinary skill in the art can expect some identical, replacement schemes apparently, all should fall into the scope of the utility model protection.

Claims

1. ring spray jet type fermentor tank, comprise tank body, described tank body central authorities are provided with stir shaft, described stir shaft is provided with agitator, described tank base is provided with inlet pipe, it is characterized in that, the bottom of described tank body also is provided with the ring spray device, described ring spray device is made up of several jet tubes that ring main road that communicates with described inlet pipe and distribution are installed on the described ring main road, and described several jet tubes jet formation injection flow pattern consistent with the sense of rotation of described agitator when this fermentor tank stirs fermented liquid; Described agitator specifically comprises axial flow agitator and runoff agitator, is respectively applied for to make fermented liquid produce axial flow and radial flow; Also be provided with the froth breaking oar on the described stir shaft.

2. ring spray jet type fermentor tank as claimed in claim 1 is characterized in that, described jet tube comprises nozzle and conduit; Described nozzle communicates with the ring main road of described ring spray device; Described conduit coats described nozzle, and is long tubular and has trumpet-shaped opening, and the below of described conduit also is provided with perforate near the position of described nozzle.

3. ring spray jet type fermentor tank as claimed in claim 1 is characterized in that described axial flow agitator is provided with two, separately is arranged on the mid-way of described stir shaft.

4. ring spray jet type fermentor tank as claimed in claim 1 is characterized in that described runoff agitator is arranged on the lower end of described stir shaft.

5. ring spray jet type fermentor tank as claimed in claim 1 is characterized in that, described froth breaking oar is arranged on the upper end at close described tank body top on the described stir shaft.

6. ring spray jet type fermentor tank as claimed in claim 1 is characterized in that, the lower end of described stir shaft also is provided with the plummer-block that supports usefulness, and the outer rim of described plummer-block is fixed on the inwall of described tank body.

One kind the fermentation stirring system, comprise motor, speed reduction unit, shaft coupling, mechanical seal, it is characterized in that, also comprise each described fermentor tank of described claim 1～6, the stir shaft of described fermentor tank connects with the output shaft of described speed reduction unit by described shaft coupling.