CN215757311U - Defoaming device of microbial fermentation tank - Google Patents
Defoaming device of microbial fermentation tank Download PDFInfo
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- CN215757311U CN215757311U CN202121609191.3U CN202121609191U CN215757311U CN 215757311 U CN215757311 U CN 215757311U CN 202121609191 U CN202121609191 U CN 202121609191U CN 215757311 U CN215757311 U CN 215757311U
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Abstract
The utility model discloses a defoaming device of a microbial fermentation tank in the technical field of fermentation tanks, which comprises a fermentation tank, wherein the fermentation tank is a sealed tank body of the fermentation tank, the upper end and the lower end of the fermentation tank are circular arcs, and the middle section of the fermentation tank is of a cylindrical structure; the gas inlet pipe is a gas conveying pipeline, the inner end of the gas inlet pipe extends into the top of the inner cavity of the fermentation tank, the outer end of the gas inlet pipe extends out of the fermentation tank, and the gas inlet pipe is hermetically connected with the wall of the fermentation tank; the outer end of intake pipe is connected on the gas outlet of air compressor machine, filter and admission valve have still been set up in the intake pipe, can puncture the foam in the fermentation cylinder through high velocity air, and this equipment structure is simple, washs easily, and the area coverage is wide, and the defoaming effect is better, and efficiency is higher.
Description
Technical Field
The utility model relates to the technical field of fermentation tanks, in particular to a defoaming device of a microbial fermentation tank.
Background
A fermenter refers to an apparatus used industrially for carrying out microbial fermentation. The main body of the device is a main cylinder made of stainless steel plates, the volume of the main cylinder is 1 cubic meter to hundreds of cubic meters, and the structure is strict and reasonable in design and processing; the fermentation tank can resist steam sterilization, has certain operation flexibility, has internal accessories as much as possible reduced or no dead angle, has strong material and energy transfer performance, can be adjusted to a certain degree so as to be convenient for cleaning and reduce pollution, and is suitable for the production of various products and the reduction of energy consumption.
The fermentation cylinder is a device for mechanically stirring and fermenting materials, the device adopts an internal circulation mode, bubbles are dispersed and smashed by a stirring paddle, the dissolved oxygen rate is high, the mixing effect is good, the tank body is made of SUS304 or 316L stainless steel, an automatic spraying cleaning head is arranged in the tank, the production process is ensured to meet the requirement, the fermentation cylinder inevitably needs to carry out air conveying on fermentation liquor in the fermentation process, the fermentation is ensured to be carried out smoothly, and the fermentation liquor also needs to be stirred, so that the air and the fermentation liquor are fully mixed, and effective biological fermentation is carried out.
Biological fermentation in the fermentation cylinder can constantly produce gas in the zymotic fluid, this type of gas can come-up in the fermentation cylinder, and produce the bubble and float in the fermentation cylinder, increase when long along with the fermentation, the foam of production will constantly increase, such foam is difficult automatic elimination, not only can influence the sight, and can obstruct the gas circulation in the fermentation cylinder, still can obstruct the mixture of additive, form confined foam blanket, the gaseous unable and zymotic fluid contact at top in the fermentation cylinder leads to, still can obstruct the operation of equipment, so need timely eliminate the foam, just so need carry out the defoaming measure in fermentation process constantly.
Defoaming is to break up the formed foam or reduce the thickness of the foam layer by taking certain measures, the precondition of recycling the foam fluid is that a feasible defoaming method is needed, a plurality of commonly used defoaming methods can be divided into a physical defoaming method, a mechanical defoaming method, a chemical defoaming method and a natural defoaming method according to the principle, a rotating blade rotates above the liquid level in the existing fermentation tank to continuously break up the foam, the method is simple and generally applicable, the quantity of the fermentation liquid is fixed and cannot be adjusted each time under the condition, the fermentation liquid is ensured to be below the defoaming blade and can be touched and broken by the defoaming blade, the fermentation liquid cannot be increased, otherwise, the defoaming blade is submerged to cause the operation of defoaming, the capacity of the fermentation liquid in the fermentation tank each time is quantitative and the operation is inflexible, and the fermentation tank does not have the conditions of using chemical defoaming and natural defoaming, leading to single defoaming mode and poor defoaming effect.
Based on this, the utility model designs a defoaming device for a microorganism fermentation tank to solve the problems.
Disclosure of Invention
The utility model aims to provide a defoaming device of a microbial fermentation tank, which can puncture foam in the fermentation tank through high-speed airflow, has the advantages of simple structure, easy cleaning, wide coverage area, better defoaming effect, higher efficiency, wide coverage area, less strict requirements on the height and volume of liquid in the fermentation tank, better defoaming effect, higher efficiency, convenience for flexibly adjusting the proportion and the concentration of fermentation liquid and various formulas in the fermentation tank in a small amount, less strict volume requirements, and convenience for flexibly adjusting various parameters of the fermentation liquid in production.
The utility model is realized by the following steps: a defoaming device for a microbial fermentation tank comprises:
the fermentation tank is a sealed tank body of the fermentation tank, the upper end and the lower end of the fermentation tank are arc-shaped, the middle section of the fermentation tank is of a cylindrical structure, a stirring paddle is arranged in the fermentation tank, a defoaming paddle is further arranged above the stirring paddle, and the defoaming paddle is attached to the upper side of the fermentation liquid level;
the gas inlet pipe is a gas conveying pipeline, the inner end of the gas inlet pipe extends into the top of the inner cavity of the fermentation tank, the outer end of the gas inlet pipe extends out of the fermentation tank, and the gas inlet pipe is hermetically connected with the wall of the fermentation tank;
the outer end of the air inlet pipe is connected to an external high-pressure sterilization air pipeline, and a filter and an air inlet valve are further arranged on the air inlet pipe;
the defoaming pipe is an annular closed pipeline and is horizontally erected at the top of the inner cavity of the fermentation tank, a plurality of defoaming nozzles are arranged on the defoaming pipe, and each defoaming nozzle is communicated with the defoaming pipe;
a plurality of defoaming nozzles are distributed on the same cross section of the defoaming pipe, each defoaming nozzle is positioned at a different radian position of the defoaming pipe, the defoaming nozzles are uniformly distributed below the inner side of the annular defoaming pipe in a surrounding manner, and the air injection direction of the defoaming nozzles faces to the material liquid direction below the fermentation tank;
the defoaming pipe is communicated with the inner end of the air inlet pipe.
Furthermore, the filter is an air filter, the air inlet valve is a flow regulating valve, and the fermentation tank is also provided with an observation window.
Furthermore, the defoaming pipe is a stainless steel pipeline with the pipe diameter not more than 5cm, the defoaming pipe is horizontally fixed inside the fermentation tank through a support, the defoaming pipe is of a circular ring structure, and the distance between the circular ring of the defoaming pipe and the inner wall of the fermentation tank is 3-15 cm.
The fermentation tank is characterized in that the air inlet pipe is a stainless steel pipeline, the pipe diameter of the air inlet pipe is not more than 7cm, the air inlet pipe is vertically fixed on the inner wall of the fermentation tank through a support, a water inlet valve and a pressure gauge are further arranged on the air inlet pipe, the water inlet valve and the pressure gauge are arranged between the air inlet valve and the fermentation tank, and the water inlet valve is connected with an external water source.
Further, the defoaming nozzle is positioned above the liquid level of the fermentation tank, and the air injection surface of the defoaming nozzle covers the whole inner ring range below the defoaming pipe in the fermentation tank.
Furthermore, the defoaming nozzle is a pinhole nozzle, a center pinhole is arranged at the circle center of the defoaming nozzle, a plurality of micropores are annularly arranged around the center pinhole, the micropores and the center pinhole are communicated with the defoaming pipe through the defoaming nozzle, the aperture of the center pinhole is 2-4 times of that of the micropores, and the aperture range of the center pinhole is 0.3-2 mm.
Furthermore, the included angle A of two adjacent defoaming nozzles on the same cross section of the defoaming pipe ranges from 5 degrees to 15 degrees, the arrangement range of the defoaming nozzles on the same cross section of the defoaming pipe does not exceed 85 degrees of arc surfaces, the defoaming nozzles are not horizontally arranged, and the defoaming nozzles are not vertically arranged;
the defoaming nozzle faces the horizontal center of the fermentation tank and is vertically downward within an angle range.
Furthermore, the number of the defoaming nozzles on the same cross section of the defoaming pipe is 1-5, and the included angle B between two adjacent defoaming nozzles at the same height is not more than 20 degrees;
any two defoaming nozzles are not on the same diameter of the fermentation tank;
any two of the de-foaming nozzles are not on the same diameter of the fermentor.
The utility model has the beneficial effects that: 1. the device defoams by the principle of gas compression and injection, so that defoaming can be carried out at positions where gas can impact, the gas impact is not carried out on a specific liquid level, defoaming operation can be carried out at all positions in the inner cavity of a fermentation tank within a height range, and strict limitation on the liquid level is not required;
2. the defoaming device can eliminate all foams in the circular ring-shaped range below the defoaming pipe through the defoaming nozzles at different angles, has good effect, does not need defoaming blades, does not participate in a mechanical structure, has good defoaming effect, is difficult to smash fine foams by the defoaming blades, and even can be attached to the blades in the contact process;
3. because this device carries out gaseous acupuncture through the defoaming nozzle of pinhole form, single-point pressure during the defoaming is far greater than mechanical blade and rotates, and defoaming effect is good, can strike the liquid level through the air moreover, still helps the mixture of air and zymotic fluid to there are central pinhole and micropore on every side on the defoaming nozzle of this device, and the coverage of defoaming is far greater than the defoaming scope of defoaming blade.
Drawings
The utility model will be further described with reference to the following examples with reference to the accompanying drawings.
FIG. 1 is a schematic view of the external overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of a fermenter according to the present invention;
FIG. 3 is a schematic diagram showing the distribution of the positions of defoaming nozzles on the cross section of the defoaming pipe according to the present invention;
FIG. 4 is a schematic view of the present invention showing the position of the bubble trap at the top of the fermentor;
FIG. 5 is a bottom view of the defoaming nozzles of the present invention annularly disposed on the defoaming pipe;
FIG. 6 is a schematic view of the angular distribution of multiple defoaming nozzles on the same cross-section of a defoaming tube according to the present invention;
FIG. 7 is a schematic diagram of the distribution of center pin holes and micro holes on a defoaming nozzle according to the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-defoaming tube, 11-defoaming nozzle, 12-central pinhole, 13-micropore, 2-air inlet tube, 21-air inlet valve, 22-filter, 3-fermentation tank, 31-pressure gauge, 32-stirring paddle, 33-water inlet valve and 34-defoaming paddle.
Detailed Description
Referring to fig. 1 to 7, the present invention provides a technical solution: a defoaming device for a microbial fermentation tank comprises:
the fermentation tank 3 is a sealed tank body of the fermentation tank, the upper end and the lower end of the fermentation tank are arc-shaped, the middle section of the fermentation tank is of a cylindrical structure, a stirring paddle 32 is arranged in the fermentation tank, a defoaming paddle 34 is further arranged above the stirring paddle 32, and the defoaming paddle 34 is attached to the upper portion of a fermentation liquid level;
the air inlet pipe 2 is a gas conveying pipeline, the inner end of the air inlet pipe extends into the top of the inner cavity of the fermentation tank 3, the outer end of the air inlet pipe extends out of the fermentation tank 3, and the air inlet pipe 2 is connected with the wall of the fermentation tank 3 in a sealing mode;
the outer end of the air inlet pipe 2 is connected to an external high-pressure sterilization air pipeline, and the air inlet pipe 2 is also provided with a filter 22 and an air inlet valve 21;
the defoaming pipe 1 is an annular closed pipeline and is horizontally erected at the top of the inner cavity of the fermentation tank 3, a plurality of defoaming nozzles 11 are arranged on the defoaming pipe, and each defoaming nozzle 11 is communicated with the defoaming pipe 1;
a plurality of defoaming nozzles 11 are also distributed on the same cross section of the defoaming pipe 1, each defoaming nozzle 11 is positioned at a different radian position of the defoaming pipe 1, the defoaming nozzles 11 are uniformly distributed below the inner side of the annular defoaming pipe 1 in a surrounding manner, and the air injection direction of each defoaming nozzle 11 faces to the material liquid direction below the fermentation tank 3;
the defoaming pipe 1 is communicated with the inner end of the air inlet pipe 2, can puncture foam in the fermentation tank 3 through air, has wide coverage area, has no strict requirements on the height and the volume of liquid in the fermentation tank 3, has better defoaming effect and higher efficiency, is convenient for flexibly adjusting the proportion and the concentration of fermentation liquor and various formulas of the fermentation tank 3 in a small amount, has no strict volume requirement, and is convenient for flexibly adjusting various parameters of the fermentation liquor in production.
The filter 22 is an air filter, the air inlet valve 21 is a flow regulating valve, and the fermentation tank 3 is also provided with an observation window and a common device, so that the operation is convenient;
the defoaming pipe 1 is a stainless steel pipeline with the pipe diameter not more than 5cm, the defoaming pipe 1 is horizontally fixed inside the fermentation tank 3 through a support, the defoaming pipe 1 is of a circular structure, and the distance between the circular ring of the defoaming pipe 1 and the inner wall of the fermentation tank 3 is 3-15 cm.
The gas inlet pipe 2 is a stainless steel pipeline, the pipe diameter of the gas inlet pipe 2 is not more than 7cm, the gas inlet pipe 2 is vertically fixed on the inner wall of the fermentation tank 3 through a support, a water inlet valve 33 and a pressure gauge 31 are further arranged on the gas inlet pipe 2, the water inlet valve 33 and the pressure gauge 31 are arranged between the gas inlet valve 21 and the fermentation tank 3, the water inlet valve 33 is connected with an external water source, the erection is stable, the defoaming is convenient, and installation positions cannot be mutually collided;
the defoaming nozzle 11 is positioned above the liquid level of the fermentation tank 3, the air injection surface of the defoaming nozzle 11 covers the whole inner ring range below the defoaming pipe 1 in the fermentation tank 3, the injection position is covered more smoothly, and defoaming dead angles are reduced;
the defoaming nozzle 11 is a pinhole nozzle, a center pinhole 12 is arranged at the center of the defoaming nozzle 11, a plurality of micropores 13 are annularly arranged around the center pinhole 12, the micropores 13 and the center pinholes 12 are communicated with the defoaming pipe 1 through the defoaming nozzle 11, the aperture of the center pinhole 12 is 2-4 times of the aperture of the micropores 13, the aperture range of the center pinhole 12 is 0.3-2 mm, the number and distribution of the center pinholes 12 and the micropores 13 on the same defoaming nozzle 11 can also be adjusted according to actual conditions, and the method is not limited to the specific number proportion and the position relationship, and only needs to enable the coverage range of the inner cavity of the fermentation tank 3 to be wider, so that the method is better for defoaming liquid surfaces with more different heights;
the included angle A of two adjacent defoaming nozzles 11 on the same cross section of the defoaming pipe 1 ranges from 5 degrees to 15 degrees, the arrangement range of the defoaming nozzles 11 on the same cross section of the defoaming pipe 1 does not exceed 85 degrees of arc surfaces, the defoaming nozzles 11 are not horizontally arranged, and the defoaming nozzles 11 are not vertically arranged;
the defoaming nozzle 11 faces the horizontal center of the fermentation tank 3 and is vertically in a downward angle range, so that the airflow generated by the defoaming nozzle 11 can cover more different heights, and when the liquid level rises and falls, different liquid level positions can be covered;
the number of the defoaming nozzles 11 on the same cross section of the defoaming pipe 1 is 1-5, and the included angle B between two adjacent defoaming nozzles 11 at the same height is not more than 20 degrees;
arbitrary two defoaming nozzle 11 is not on the same diameter of fermentation cylinder 3, can cover more different positions in the fermentation cylinder 3, effectively reduces the air current and sprays the dead angle to defoaming nozzle 11 sets up and distributes more evenly, can also avoid the air current to contradict each other.
In one embodiment of the utility model:
the embodiment of the utility model provides a defoaming device for a microbial fermentation tank, and the technical problem to be solved by the utility model is as follows: 1. in the existing defoaming method in the fermentation tank 3, because fermentation in the fermentation tank 3 is generally food or fermentation liquor with higher requirement on sanitation level, defoaming agent or chemical defoaming cannot be used basically, and because of a sealed environment, the temperature and pressure of the fermentation environment are strictly controlled, and a natural defoaming mode cannot be used, so that a mechanical impeller is generally used for rotating in the fermentation tank 3 to stir and scatter foams to break the foams to achieve the purpose of defoaming, and the defoaming mode needs mechanical rotation, lubrication, a motor, equipment maintenance and troublesome maintenance, and engine oil can be dropped into the fermentation liquor possibly and is very complicated to use; 2. the mechanical blade type defoaming device needs to ensure the cleanliness of equipment and avoid the pollution of the equipment to fermentation liquor, and is in contact with the fermentation liquor for a long time, so that the equipment needs to be cleaned before each use, is troublesome to clean, and needs to be periodically disassembled, assembled and maintained; 3. because the mechanical structure is horizontal on the fermentation liquid level at present, the foam can be crushed by stirring close to the fermentation liquid level, so that the liquid level height of the fermentation liquid is required to be specific, the liquid level can not be high or low, the fermentation liquid must be kept at the specific height, otherwise, the defoaming can not be carried out, the limitation on the working condition is large, more additives can not be added in the actual fermentation process of the fermentation liquid, the liquid level rising needs to be avoided, when more foams are generated, the fermentation liquid level is required to be added after the liquid level drops, the operation is complicated, and the foam is closest to a layer of foam on the liquid level, and stirring blades are difficult to touch, so that the defoaming is not thorough.
The realized technical effects are as follows: 1. the device defoams according to the principle of gas compression and injection, so that defoaming can be carried out at positions where gas can impact, the gas impact is not carried out on a specific liquid level, defoaming operation can be carried out at all positions in the inner cavity of a fermentation tank within a height range, and strict limitation on the liquid level is not required;
2. the defoaming device can eliminate all foams in the circular ring-shaped range below the defoaming pipe through the defoaming nozzles at different angles, has good effect, does not need defoaming blades, does not participate in a mechanical structure, has good defoaming effect, is difficult to smash fine foams by the defoaming blades, and even can be attached to the blades in the contact process;
3. because this device carries out gaseous acupuncture through the defoaming nozzle of pinhole form, single-point pressure during the defoaming is far greater than mechanical blade and rotates, and defoaming effect is good, can strike the liquid level through the air moreover, still helps the mixture of air and zymotic fluid to there are central pinhole and micropore on every side on the defoaming nozzle of this device, and the coverage of defoaming is far greater than the defoaming scope of defoaming blade.
In order to solve the above problems, the technical solution in the embodiments of the present invention has the following general idea:
for better understanding of the above technical solutions, the following detailed descriptions will be provided in conjunction with the drawings and the detailed description of the embodiments.
When the fermentation tank is manufactured and installed, a conventional fermentation tank 3 is firstly taken, then an air inlet pipe 2 is installed at the top of the fermentation tank in a sealing mode, the wall of the fermentation tank 3 is ensured to be welded with the air inlet pipe 2 in a sealing mode, then the upper end of the air inlet pipe 2 extends out of the fermentation tank 3, then the outer end of a pipe body of the air inlet pipe 2 is connected with an air inlet valve 21, a filter 23 and an air compressor 23, a buffer box body is arranged at the air outlet end of the air compressor 23 and is a sealing box body capable of storing high-pressure air, the air with pressure is provided through the air compressor 23, then the air is filtered through the filter 23, the air is ensured to be clean, and then the flow of the air is controlled through the air inlet valve 21;
the air inlet pipe 2 needs to extend into the top of the inner cavity of the fermentation tank 3;
then, a defoaming pipe 1 is installed at the lower end of an air inlet pipe 2, the defoaming pipe 1 is of a circular integral structure, a plurality of defoaming nozzles 11 are uniformly arranged on the inner side of the bottom of the defoaming pipe 1, four defoaming nozzles 11 are installed on the same cross section of the defoaming pipe 1, the rising angle A between the spraying defoaming nozzles 11 is 10 degrees, the defoaming nozzles 11 are not horizontally arranged, and are not vertically arranged downwards, as shown in fig. 6, the arrangement positions of the defoaming nozzles 11 on the same cross section of the defoaming pipe 1 are distributed;
the defoaming pipe 1 is a circular ring structure, the defoaming nozzles 11 are uniformly distributed on the defoaming pipe 1, in the embodiment, four defoaming nozzles 11 are in a group, multiple groups of defoaming nozzles 11 are uniformly distributed on the defoaming pipe 1, an included angle B between two adjacent groups of defoaming nozzles 11 is not more than 20 degrees, and the included angle B is optimally a 15-degree angle, so that the opposite directions of the defoaming nozzles 11 are not affected mutually, a highest defoaming nozzle 11 emits to the central position of the fermentation tank 3, when the liquid level continuously rises, the highest defoaming nozzle 11 emits to the position close to the outside, when the liquid level descends, the highest defoaming nozzle 11 is staggered with the airflow of the opposite defoaming nozzle 11, emits to the other semicircular liquid level in the fermentation tank 3, and when the device is installed, it is required to ensure that the airflow sprayed by any defoaming nozzle 11 is not opposite to each other, i.e. any two of the de-foaming nozzles 11 are not on the same diameter of the fermentation tank 3;
the defoaming nozzle 11 is provided with only one central pinhole 12 and a plurality of micropores 13, the aperture of the central pinhole 12 is 2-4 times of that of the micropores 13, and the aperture range of the central pinhole 12 is 0.3-2 mm; the aperture of the central pinhole 12 is 0.8mm, the aperture of the micropore 13 is 0.2mm, the number of the micropore 13 is 6, and the micropore is uniformly surrounded on the periphery of the central pinhole 12, so that the defoaming effect is better.
When the utility model is used, fermentation liquor is injected into a fermentation tank 3, then the fermentation tank 3 is sealed, bubbles are continuously generated in the fermentation tank, when the bubbles are found through an observation window, an air compressor 23 is started, air is input into an air inlet pipe 2 through the air compressor 23, then high-pressure air passes through a filter 22 and controls air flow through an air inlet valve 21, the high-pressure air enters a defoaming pipe 1 through the air inlet pipe 2, the high-pressure air is sprayed onto the liquid surface in the fermentation tank 3 through a defoaming nozzle 11, the foams are blown off and punctured through the air flow, the air flow is not only sprayed out through a central pinhole 12 of the defoaming nozzle 11, the air flow is larger due to larger aperture and can be sprayed farther, smaller micropores 13 can be sprayed in a wider range and can cover a wider range, so that more fine bubbles can be eliminated, the defoaming effect of the device is better, because the defoaming nozzles 11 with different angles are arranged on the same cross section in the defoaming pipe 1, and all defoaming nozzles 11 are all spraying downwards simultaneously still to the center department of fermentation cylinder 3 and spout, can cover more liquid level defoamings of co-altitude not, and the continuous rotation of zymotic fluid moreover, the foam can be constantly to centre of a circle department gathering, and the defoaming is easier.
The outer end and the inner of this device mean that the inside of fermentation cylinder 3 is inner, and 3 outsides of fermentation cylinder are the outer end, and is the same, and inboard and center mean the vertical axis of fermentation cylinder 3, namely the vertical line on the central point of 3 horizontal cross sections of fermentation cylinder is center and inboard, and the outside is fermentation cylinder 3 lateral wall all around relatively for the outside.
Although specific embodiments of the utility model have been described above, it will be understood by those skilled in the art that the specific embodiments described are illustrative only and are not limiting upon the scope of the utility model, and that equivalent modifications and variations can be made by those skilled in the art without departing from the spirit of the utility model, which is to be limited only by the appended claims.
Claims (7)
1. A defoaming device for a microbial fermentation tank is characterized by comprising:
the fermentation tank (3) is a sealed tank body of the fermentation tank, the upper end and the lower end of the fermentation tank are arc-shaped, the middle section of the fermentation tank is of a cylindrical structure, a stirring paddle (32) is arranged in the fermentation tank, a defoaming paddle (34) is further arranged above the stirring paddle (32), and the defoaming paddle (34) is attached to the upper side of a fermentation liquid level;
the air inlet pipe (2) is a gas conveying pipeline, the inner end of the air inlet pipe extends into the top of the inner cavity of the fermentation tank (3), the outer end of the air inlet pipe extends out of the fermentation tank (3), and the air inlet pipe (2) is hermetically connected with the wall of the fermentation tank (3);
the outer end of the air inlet pipe (2) is connected to an external high-pressure sterilization air pipeline, and the air inlet pipe (2) is also provided with a filter (22) and an air inlet valve (21);
the defoaming device comprises a defoaming pipe (1) which is an annular closed pipeline and is horizontally erected at the top of an inner cavity of the fermentation tank (3), a plurality of defoaming nozzles (11) are arranged on the defoaming pipe, and each defoaming nozzle (11) is communicated with the defoaming pipe (1);
a plurality of defoaming nozzles (11) are also distributed on the same cross section of the defoaming pipe (1), each defoaming nozzle (11) is positioned at a position with different radians of the defoaming pipe (1), the defoaming nozzles (11) are uniformly distributed below the inner side of the annular defoaming pipe (1) in a surrounding manner, and the air injection direction of each defoaming nozzle (11) faces to the material liquid direction below the fermentation tank (3);
the defoaming pipe (1) is communicated with the inner end of the air inlet pipe (2).
2. The defoaming apparatus for a microorganism fermentation tank according to claim 1, wherein: the filter (22) is an air filter, the air inlet valve (21) is a flow regulating valve, and the fermentation tank (3) is further provided with an observation window.
3. The defoaming apparatus for a microorganism fermentation tank according to claim 1, wherein: the defoaming device is characterized in that the defoaming pipe (1) is a stainless steel pipeline with the pipe diameter not more than 5cm, the defoaming pipe (1) is horizontally fixed inside the fermentation tank (3) through a support, the defoaming pipe (1) is of a circular structure, and the distance between the circular ring of the defoaming pipe (1) and the inner wall of the fermentation tank (3) is 3-15 cm;
the fermentation tank is characterized in that the air inlet pipe (2) is a stainless steel pipeline, the pipe diameter of the air inlet pipe (2) is not more than 7cm, the air inlet pipe (2) is vertically fixed on the inner wall of the fermentation tank (3) through a support, the air inlet pipe (2) is further provided with a water inlet valve (33) and a pressure gauge (31), the water inlet valve (33) and the pressure gauge (31) are arranged between the air inlet valve (21) and the fermentation tank (3), and the water inlet valve (33) is connected with an external water source.
4. The defoaming apparatus for a microorganism fermentation tank according to claim 1, wherein: the defoaming nozzle (11) is positioned above the liquid level of the fermentation tank (3), and the air injection surface of the defoaming nozzle (11) covers the whole inner ring range below the defoaming pipe (1) in the fermentation tank (3).
5. The defoaming apparatus for a microorganism fermentation tank according to claim 1, wherein: defoaming nozzle (11) are the pinhole nozzle, the centre of a circle department of defoaming nozzle (11) is equipped with central pinhole (12), the ring is equipped with a plurality of micropores (13) around central pinhole (12), micropore (13) and central pinhole (12) all communicate with defoaming pipe (1) through defoaming nozzle (11), the aperture of central pinhole (12) is 2-4 times micropore (13) aperture, the aperture scope of central pinhole (12) is at 0.3mm-2 mm.
6. The defoaming apparatus for a microorganism fermentation tank according to claim 3, wherein: the included angle A of two adjacent defoaming nozzles (11) on the same cross section of the defoaming pipe (1) ranges from 5 degrees to 15 degrees, the arrangement range of the defoaming nozzles (11) on the same cross section of the defoaming pipe (1) does not exceed 85 degrees of arc surfaces, the defoaming nozzles (11) are not horizontally arranged, and the defoaming nozzles (11) are not vertically arranged;
the defoaming nozzle (11) faces to the horizontal center of the fermentation tank (3) and is vertically downward within an angle range.
7. The defoaming apparatus for a microorganism fermentation tank according to claim 3, wherein: the number of the defoaming nozzles (11) on the same cross section of the defoaming pipe (1) is 1-5, the included angle B between two adjacent defoaming nozzles (11) at the same height is not more than 20 degrees;
any two of the defoaming nozzles (11) are not on the same diameter of the fermentation tank (3).
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| CN202121609191.3U CN215757311U (en) | 2021-07-15 | 2021-07-15 | Defoaming device of microbial fermentation tank |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116144471A (en) * | 2023-04-18 | 2023-05-23 | 枣庄市杰诺生物酶有限公司 | Novel fermentation device and fermentation process for proline |
| CN116585731A (en) * | 2023-05-18 | 2023-08-15 | 广西中烟工业有限责任公司 | Plant nature spices extract evaporation plant |
| CN120424749A (en) * | 2025-07-08 | 2025-08-05 | 沈阳味来央厨食品有限公司 | Fermentation device and method for producing condiments |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116144471A (en) * | 2023-04-18 | 2023-05-23 | 枣庄市杰诺生物酶有限公司 | Novel fermentation device and fermentation process for proline |
| CN116585731A (en) * | 2023-05-18 | 2023-08-15 | 广西中烟工业有限责任公司 | Plant nature spices extract evaporation plant |
| CN116585731B (en) * | 2023-05-18 | 2025-08-29 | 广西中烟工业有限责任公司 | A plant-based natural spice extract evaporation device |
| CN120424749A (en) * | 2025-07-08 | 2025-08-05 | 沈阳味来央厨食品有限公司 | Fermentation device and method for producing condiments |
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