CN218404169U - Novel air distribution device applied to fermentation tank - Google Patents
Novel air distribution device applied to fermentation tank Download PDFInfo
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- CN218404169U CN218404169U CN202222792159.4U CN202222792159U CN218404169U CN 218404169 U CN218404169 U CN 218404169U CN 202222792159 U CN202222792159 U CN 202222792159U CN 218404169 U CN218404169 U CN 218404169U
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Abstract
The utility model discloses a novel air distribution device applied in a fermentation tank, which comprises a porous ring pipe, wherein the gas distribution hole of the porous ring pipe is connected with a gas dispersion mechanism; the gas dispersion mechanism comprises a gas spraying pipe, the pipe diameter of the gas spraying pipe is large at two ends and small in the middle, one end of the gas spraying pipe is connected with the air hole, a plurality of side holes are circumferentially formed in the large-diameter end of the gas spraying pipe close to the air hole, and the large-diameter end of the gas spraying pipe far away from the air hole is in a flaring shape. The device can reduce the diameter of bubbles, so that oxygen and fermentation liquor are fully mixed, the dissolved oxygen degree of the fermentation liquor is high, and the energy consumption of the fermentation tank is effectively reduced.
Description
Technical Field
The utility model relates to a technical field of fermentation cylinder, in particular to be applied to novel air distribution in fermentation cylinder.
Background
In the aerobic fermentation industry, the mechanical stirring ventilation type fermentation tank is also called as a universal fermentation tank, the research and development application time is early, the technology at home and abroad is relatively mature, and the production is safe and reliable; meanwhile, the number of suppliers of the fermentation tanks is large, and the market price is greatly superior to that of other emerging types, so that the mechanical stirring aeration type fermentation tank is the most commonly used fermentation tank in the industry at present.
At present, the ventilation device of the mechanical stirring ventilation type fermentation tank is mostly a porous ring pipe, such as the following patents: CN 217297861U, an intelligent fermentation seed tank special for erythritol, discloses a special intelligent fermentation seed tank with a ring-shaped porous distributor (namely a porous ring pipe).
However, as the capacity of the fermenter increases (in the current industry with large scale production, the fermenter capacity is mostly 300-500m 3 ) The aeration quantity is larger in the actual fermentation process, the diameter of the bubbles is related to two factors of the aeration quantity and the stirring speed, the pore size relation of the aeration device is extremely small, the aeration quantity is larger and/or the stirring speed is higher, and the diameter of the bubbles is smaller, so that along with the increase of the capacity of the conventional fermentation tank, the fermentation tank with the porous ring pipe needs to be stirred strongly, the diameter of the bubbles is reduced, the oxygen and the fermentation liquor are mixed sufficiently, the oxygen dissolving effect is improved, and the energy consumption consumed by the stirring of the fermentation tank is inevitably high.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a be applied to novel air distribution device in fermentation cylinder can reduce the diameter of bubble, makes oxygen and zymotic fluid intensive mixing, and the zymotic fluid dissolved oxygen degree is high, and effectively reduces the energy consumption of fermentation cylinder.
In order to realize the aim, the utility model provides a novel air distribution device applied in a fermentation tank, which comprises a porous ring pipe, wherein the air distribution hole of the porous ring pipe is connected with a gas dispersion mechanism;
gas dispersion mechanism is including jet-propelled pipe, the pipe diameter of jet-propelled pipe is that both ends are big, the centre is little, just the one end and the air pocket of jet-propelled pipe are connected, wherein, jet-propelled pipe has seted up a plurality of side openings near the big footpath end circumference of branch gas pocket, just the big footpath end of jet-propelled pipe far away branch gas pocket is for the flaring form.
Further, the gas distribution holes comprise a first-stage gas distribution hole, a second-stage gas distribution hole and a third-stage gas distribution hole, the first-stage gas distribution hole, the second-stage gas distribution hole and the third-stage gas distribution hole are uniformly distributed along the circumferential direction of the porous ring pipe, and inclination angles of the gas injection pipes connected to the first-stage gas distribution hole, the second-stage gas distribution hole and the third-stage gas distribution hole are sequentially reduced, wherein the gas injection pipes are located on the inner side of the porous ring pipe, and the gas injection pipes are obliquely arranged relative to the axis of the porous ring pipe.
Furthermore, the pipe diameter of the air inlet pipeline of the porous ring pipe is larger than that of the porous ring pipe.
Further, the number of the first-stage air holes, the second-stage air holes and the third-stage air holes is 30 to 60.
Further, the porous circular pipe is connected to the bottom of the fermentation tank through a support, a circulation gap is formed between the porous circular pipe and the bottom of the fermentation tank, the fermentation tank and the porous circular pipe are coaxial, and the porous circular pipe is connected to the support through a hoop.
Furthermore, the air injection pipe is connected with the air distribution holes through the adapter pipe, one end of the adapter pipe is detachably connected with the air injection pipe, and the other end of the adapter pipe is welded with the air distribution holes.
Further, the pipe diameter of the adapter tube is smaller than the minimum pipe diameter of the air injection tube.
By adopting the novel air distribution device applied to the fermentation tank, oxygen which is discharged into the gas injection pipe from the porous ring pipe is respectively discharged from the side hole and the axial direction of the gas injection pipe, so that the primary dispersion of the oxygen is realized; the large-diameter end of the gas injection pipe, which is far away from the gas separation hole, is in a flaring shape, so that the secondary dispersion of oxygen axially discharged from the gas injection pipe is realized; wherein, the twice reducing of jet-propelled pipe is for changing the velocity of flow of blowout gas for the gas-liquid mixture of oxygen and zymotic fluid produces the pulse fluctuation, does benefit to the diameter reduction of oxygen bubble, realizes the cubic dispersion of oxygen, so through above-mentioned secondary dispersion setting, can be on the basis of guaranteeing the air output, reduce the diameter of bubble, make the even dispersion of bubble in the zymotic fluid, improve the dissolved oxygen degree of zymotic fluid, need not the powerful stirring of fermentation cylinder, reduce stirring load, effectively reduce the energy consumption of fermentation cylinder.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a cross-sectional view of a novel air distribution device applied in a fermentation tank according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
fig. 3 is a top view of the assembly of the perforated collar and the gas lance.
Wherein: 1. the gas injection device comprises a gas inlet pipeline, 2 parts of a porous ring pipe, 3 parts of a gas injection pipe, 4 parts of a fermentation tank, 5 parts of a transfer pipe, 6 parts of three-stage air holes, 7 parts of two-stage air holes, 8 parts of three-stage air holes and 9 parts of side holes.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1 to 3, the utility model discloses a novel air distribution device applied in a fermentation tank, which comprises a porous ring pipe 2, wherein the air distribution holes of the porous ring pipe 2 are connected with an air distribution mechanism;
the gas dispersion mechanism comprises a gas injection pipe 3, the pipe diameter of the gas injection pipe 3 is large at two ends and small in the middle, one end of the gas injection pipe 3 is connected with a gas hole, a plurality of side holes 9 are circumferentially arranged at the large-diameter end of the gas injection pipe 3 close to the gas distribution hole, and the large-diameter end of the gas injection pipe 3 far away from the gas distribution hole is in a flaring shape.
Specifically, as a known technology in the art, the number of the air distribution holes is multiple, and the air distribution holes are uniformly distributed at equal intervals along the circumferential direction of the multiplex ring pipe; when the fermentation tank works, oxygen conveyed to the porous ring pipe 2 by the air inlet pipeline 1 is discharged into the fermentation tank 4 from the air distribution hole, and the oxygen and the fermentation liquor are uniformly mixed under the action of the stirring mechanism;
the gas dispersing mechanism is additionally arranged at the gas distributing hole to disperse and discharge the oxygen entering the fermentation tank 4 and reduce the diameter of bubbles; specifically, oxygen discharged from the gas distribution holes enters the fermentation tank 4 through the gas injection pipe 3, and accordingly, a part of the oxygen entering the gas injection pipe 3 is discharged from the side hole 9, and the other part of the oxygen is discharged along the axial direction of the gas injection pipe 3, so that oxygen is dispersed; in addition, the twice diameter change of the gas ejector 3 is to change the flow velocity of the ejected gas, so that the gas-liquid mixture of the oxygen and the fermentation liquor generates pulse fluctuation, the diameter reduction of oxygen bubbles is facilitated, and the preliminary fusion of gas and liquid is realized; it should be noted that the large-diameter end of the gas injection tube 3 away from the gas separation holes is flared, so that oxygen is discharged in a divergent manner, which is beneficial to the dispersion of oxygen and further reduces the diameter of oxygen bubbles.
When the novel air distribution device applied to the fermentation tank provided by the utility model is applied, the oxygen discharged into the gas injection pipe 3 from the porous ring pipe 2 is respectively discharged from the side hole 9 and the axial direction of the gas injection pipe 3, so as to realize the primary dispersion of the oxygen; the large-diameter end of the gas injection pipe 3 far away from the gas separation hole is in a flaring shape, and secondary dispersion of oxygen is realized for oxygen axially discharged from the gas injection pipe 3; wherein, the twice reducing of jet-propelled pipe 3 is for changing the gaseous velocity of flow of blowout for the gas-liquid mixture of oxygen and zymotic fluid produces the pulse fluctuation, does benefit to the diameter reduction of oxygen bubble, realizes the cubic dispersion of oxygen, so through above-mentioned secondary dispersion setting, can be on the basis of guaranteeing the air output, reduce the diameter of bubble, make the even dispersion of bubble in the zymotic fluid, improve the dissolved oxygen degree of zymotic fluid, need not the strong stirring of fermentation cylinder 4, reduce the stirring load, effectively reduce the energy consumption of fermentation cylinder 4.
It should be added that, during the tank placing, the side hole 9 can make the fermentation liquid better leave the gas separation hole and the gas ejector 3, so as to avoid blockage.
On the basis of the above embodiment, the gas distribution holes include a first-stage gas distribution hole, a second-stage gas distribution hole 7 and a third-stage gas distribution hole 86, the first-stage gas distribution hole, the second-stage gas distribution hole 7 and the third-stage gas distribution hole 86 are all multiple in number, the first-stage gas distribution hole, the second-stage gas distribution hole 7 and the third-stage gas distribution hole 86 are all uniformly distributed along the circumference of the porous ring tube 2, and the inclination angles of the gas injection pipes 3 respectively connected to the first-stage gas distribution hole, the second-stage gas distribution hole 7 and the third-stage gas distribution hole 86 are sequentially reduced, wherein the gas injection pipes 3 are all located on the inner side of the porous ring tube 2, and the gas injection pipes 3 are obliquely arranged relative to the axis of the porous ring tube 2; the axes of the gas injection pipe 3 and the porous ring pipe 2 have no intersection point
Specifically, the inclination angles of the gas injection pipes 3 respectively connected to the first-stage gas distribution holes, the second-stage gas distribution holes 7 and the third-stage gas distribution holes 86 are 25 degrees, 15 degrees and 5 degrees in sequence; the gas injection pipes 3 respectively connected with the first-stage gas distribution holes, the second-stage gas distribution holes 7 and the third-stage gas distribution holes 86 are arranged at different inclination angles in a vertical plane, so that staggered installation is realized, and more gas injection pipes are ensured to be installed; the gas injection pipes 3 are obliquely arranged along the same direction and are arranged in an oblique center manner, the axes of the gas injection pipes are not intersected with the axis of the porous ring pipe 2, so that the oxygen is sprayed to form a circulating current flowing around the axis of the porous ring pipe 2, the effect of stirring the fermentation liquor is achieved, and the energy consumption of an upper stirring mechanism can be reduced; in addition, the upward flowing speed of the oxygen is reduced to a certain extent, so that the fusion time of the oxygen and the fermentation liquor is longer, and the oxygen utilization rate is improved.
On the basis of the above embodiment, the pipe diameter of the air inlet pipe 1 connected to the porous ring pipe 2 is larger than that of the porous ring pipe 2, so that the air pressure in the porous ring pipe 2 can be increased.
On the basis of the above embodiment, the number of the first-stage air distributing holes, the second-stage air distributing holes 7 and the third-stage air distributing holes 86 is 30 to 60; wherein, can adopt the technical formula in the existing industry according to the pipe diameter of admission line 1, calculate the aperture of corresponding branch gas pocket, specific process is not repeated again, is the well-known technique in this field.
On the basis of the above embodiment, the porous ring pipe 2 is connected to the bottom of the fermentation tank 4 through a bracket, and a circulation gap is formed between the porous ring pipe 2 and the bottom of the fermentation tank 4, so that the gas injection pipes 3 of the first-stage gas distribution holes, the second-stage gas distribution holes 7 and the third-stage gas distribution holes 86 are different in inclination angle, so that the oxygen forms circulation flow flowing around the porous ring pipe 2 after being sprayed out, and the circulation flow is prevented from being blocked; and fermentation cylinder 4 and porous ring pipe 2 are coaxial, and wherein, porous ring pipe 2 passes through the clamp and connects in the support, is convenient for dismouting clearance porous ring pipe 2.
On the basis of above-mentioned embodiment, the jet-propelled pipe 3 is connected the branch gas pocket through switching pipe 5, and the connection can be dismantled with jet-propelled pipe 3 to the one end of switching pipe 5, and the other end welds with the branch gas pocket, and the later stage of being convenient for is changed the jet-propelled pipe 3 of dismouting.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that comprises the element.
In the present specification, the embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A novel air distribution device applied to a fermentation tank comprises a porous ring pipe, and is characterized in that a gas distribution hole of the porous ring pipe is connected with a gas dispersion mechanism;
gas dispersion mechanism includes jet-propelled pipe, the pipe diameter of jet-propelled pipe is that both ends are big, middle little, just the one end and the air pocket of jet-propelled pipe are connected, wherein, jet-propelled pipe has seted up a plurality of side openings near the big footpath end circumference of branch gas pocket, just jet-propelled pipe keeps away from the big footpath end of branch gas pocket and is the flaring form.
2. The novel air distribution device applied to the fermentation tank as claimed in claim 1, wherein the gas distribution holes comprise a first-stage gas distribution hole, a second-stage gas distribution hole and a third-stage gas distribution hole, the first-stage gas distribution hole, the second-stage gas distribution hole and the third-stage gas distribution hole are uniformly distributed along the circumferential direction of the porous ring pipe, and the inclination angles of the gas nozzles respectively connected to the first-stage gas distribution hole, the second-stage gas distribution hole and the third-stage gas distribution hole are sequentially reduced, wherein the gas nozzles are all located on the inner side of the porous ring pipe, and the gas nozzles are obliquely arranged relative to the axis of the porous ring pipe.
3. The novel air distribution device applied in the fermentation tank as claimed in claim 2, wherein the pipe diameter of the air inlet pipe connected with the porous loop pipe is larger than that of the porous loop pipe.
4. The novel air distribution device applied to the inside of the fermenter according to claim 3, wherein the number of the first stage partial air holes, the second stage partial air holes and the third stage partial air holes is 30 to 60.
5. The novel air distribution device applied to the inside of the fermentation tank as claimed in any one of claims 1 to 4, wherein the porous collar is connected to the bottom of the fermentation tank through a bracket, a flow-through gap is provided between the porous collar and the bottom of the fermentation tank, and the fermentation tank and the porous collar are coaxial, wherein the porous collar is connected to the bracket through a clip.
6. The novel air distribution device applied to the inside of the fermentation tank as claimed in any one of claims 1 to 4, wherein the air injection pipe is connected with the air distribution holes through an adapter pipe, one end of the adapter pipe is detachably connected with the air injection pipe, and the other end of the adapter pipe is welded with the air distribution holes.
7. The novel air distribution device applied to the fermentation tank as claimed in claim 6, wherein the pipe diameter of the adapter pipe is smaller than the minimum pipe diameter of the air injection pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222792159.4U CN218404169U (en) | 2022-10-24 | 2022-10-24 | Novel air distribution device applied to fermentation tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222792159.4U CN218404169U (en) | 2022-10-24 | 2022-10-24 | Novel air distribution device applied to fermentation tank |
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| Publication Number | Publication Date |
|---|---|
| CN218404169U true CN218404169U (en) | 2023-01-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222792159.4U Active CN218404169U (en) | 2022-10-24 | 2022-10-24 | Novel air distribution device applied to fermentation tank |
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| CN (1) | CN218404169U (en) |
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- 2022-10-24 CN CN202222792159.4U patent/CN218404169U/en active Active
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