Defoaming device of bioreactor

Abstract

The defoaming device comprises a reaction kettle, a kettle cover is detachably arranged at the top of the reaction kettle, a support is arranged on the inner side wall of the kettle cover, a defoaming net is detachably arranged on the support, the defoaming net is of a conical structure, and the defoaming net is arranged on the inner side wall of the kettle cover. A connecting pipe extending out of the reaction kettle is movably arranged at the top of the inner side of the kettle cover, a plurality of branch pipes are connected to the lower end of the connecting pipe in parallel, and a plurality of atomizing nozzles are arranged at the lower ends of the branch pipes. The utility model belongs to the technical field of defoaming devices, and particularly relates to a defoaming device of a bioreactor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of defoaming device, specifically point to a kind of defoaming device of bioreactor. BACKGROUND

[0002] In the biological fermentation process, excessive foam can cause fermentation broth to overflow the reactor, resulting in raw material waste and environmental pollution; Foam can also occupy the effective space inside the reactor, reducing the loading coefficient of the reaction system, affecting the reaction yield; And the presence of foam can hinder the heat transfer, gas exchange and mass transfer process such as material mixing in the reaction system, resulting in uneven reaction, and thus affecting the reaction efficiency and product quality.

[0003] Traditional defoaming methods such as simply using defoaming agent often have problems such as incomplete defoaming, large amount of defoaming agent and possible negative effects on the reaction, and the defoaming effect of single defoaming net structure is also limited when facing complex foam conditions. UTILITY MODEL CONTENT

[0004] The utility model solves the technical problem that traditional defoaming methods such as simply using defoaming agent often have problems such as incomplete defoaming, large amount of defoaming agent and possible negative effects on the reaction, and the defoaming effect of single defoaming net structure is also limited when facing complex foam conditions.

[0005] In order to realize the above function, the utility model adopts the following technical scheme: a defoaming device for a bioreactor, comprising a reactor, a cover is detachably arranged on the top of the reactor, a support is arranged on the inner side wall of the cover, a defoaming net is detachably arranged on the support, the defoaming net is arranged in a conical structure, a connecting pipe extending to the outside of the reactor is movably arranged at the top position of the inner side of the cover, a plurality of branch pipes are connected in parallel at the lower end of the connecting pipe, and a plurality of atomizing nozzles are arranged at the lower end of the branch pipes.

[0006] Preferably, a bolt is arranged on the top wall of the defoaming net, a jack is arranged on the support, the bolt passes through the jack, and the bolt passes through the jack and is fixed by a nut.

[0007] Preferably, an extraction pump is arranged on the outer side of the cover, the output end of the extraction pump is connected to the connecting pipe through a rotary seal, a gear one is fixed on the connecting pipe, a support frame is fixed on the outer side of the cover, a gear two is rotatably arranged on the lower part of the support frame, the gear two is engaged with the gear one, a driving motor is arranged on the upper part of the support frame, and the output end of the driving motor is rotatably connected to the gear two through the support frame.

[0008] Preferably, the top of the reactor is provided with an outward turning plate, the edge of the cover and the outer turning plate are provided with two recesses opposite to each other, the recesses of the outer turning plate are rotatably connected with studs, the top of the stud is clamped into the recess of the cover, and the top of the stud is threadedly connected with a nut two, and the nut two is used for pressing the cover.

[0009] Preferably, the top of the reactor is provided with an inlet, the bottom of the reactor is provided with an outlet, the inlet is provided with a blocking cap, and the outlet is provided with a valve.

[0010] Preferably, the support is provided in a cross structure.

[0011] Preferably, the defoaming net is made of a stainless steel net, and the support frame is a right-angle bent plate structure.

[0012] The utility model discloses adopt above -mentioned structure and obtain beneficial effect as follows: atomizing nozzle and conical defoaming net cooperate, and atomizing nozzle atomizes defoaming agent into small droplet, greatly increased the contact area of defoaming agent and foam, makes defoaming agent more fully permeate to the inside of foam, destroys the stability of foam, simultaneously, conical defoaming net lets foam contact the net surface of different height and angle in the process of ascending with its special shape, is subjected to the cutting and crushing force of many directions, thereby significantly improves defoaming efficiency.

[0013] The defoaming net is connected with the support through bolts and is fixed by a nut, and the detachable connection mode makes the defoaming net be easily taken down by rotating the nut when needing to clean the defoaming net, so that the residual impurities, dirt or broken foam on the defoaming net can be conveniently cleaned regularly, the defoaming net can keep good defoaming performance for a long time, the service life of the defoaming net is prolonged, and the equipment maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the overall structure diagram of the utility model embodiment Figure 1 ;

[0015] Figure 2 It is the overall structure diagram of the utility model embodiment Figure 2 ;

[0016] Figure 3 It is the sectional view of the utility model embodiment;

[0017] Figure 4 It is Figure 1 the enlarged view of A part in the utility model embodiment;

[0018] Figure 5 It is the plan view of the support of the utility model embodiment.

[0019] Wherein, 1, reaction kettle, 2, kettle cover, 3, support, 4, defoaming net, 5, connecting pipe, 6, branch pipe, 7, atomizing nozzle, 8, bolt, 9, jack, 10, nut, 11, extraction pump, 12, gear, 13, support frame, 14, gear, 15, drive motor, 16, outer plate, 17, groove, 18, stud, 19, nut, 20, feed inlet, 21, discharge port, 22, blocking cap, 23, valve. DETAILED DESCRIPTION

[0020] The technical scheme of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0021] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. The present application will be further described in detail below in combination with the drawings.

[0022] As Figures 1-5As shown in the utility model discloses a kind of defoaming device of bioreactor, including reaction kettle 1, the top of the reaction kettle 1 is detachably provided with kettle cover 2, the inner side wall of kettle cover 2 is equipped with support 3, the support 3 is cross type structure arrangement, detachably equipped with defoaming net 4 on the support 3, the defoaming net 4 is made of stainless steel net, the defoaming net 4 is conical structure arrangement, the top position of the inner side of kettle cover 2 is movably equipped with the connecting pipe 5 extending to the outside of reaction kettle, the lower end of the connecting pipe 5 is connected with a plurality of branch pipes 6, the lower end of the branch pipe 6 is equipped with a plurality of atomizing nozzles 7, atomizing nozzle 7 can evenly spray defoaming agent on the surface of foam, form fine droplets, increase the contact area of defoaming agent and foam, can more fully play defoaming effect, improve defoaming efficiency, and by conical defoaming net 4 can increase the contact area of foam and defoaming net 4, when foam rises and contacts conical defoaming net 4, the mesh surface of different height and angle can all act on foam, make foam more easily be cut and broken, thereby improve defoaming efficiency, the shape of cone is conducive to guiding the flow of liquid, in the defoaming process, liquid can flow naturally along the inclined surface of cone, make gas-liquid separation more smooth, help to improve the operating efficiency of the whole system, avoid liquid accumulation at defoaming net 4, affect defoaming effect.

[0023] As Figure 3 And 5 As shown, the top wall of the defoaming net 4 is equipped with bolt 8, the support 3 is equipped with jack 9, the bolt 8 passes through jack 9 and is fixed by nut one 10, when kettle cover 2 is removed, nut one 10 is unscrewed, defoaming net 4 can be removed for cleaning.

[0024] As Figure 1 And 4 As shown, the outside of kettle cover 2 is equipped with extraction pump 11, the output end of extraction pump 11 and connecting pipe 5 are connected by rotary seal, rotary seal can adopt H8 / H10 mechanical seal produced by Anhui Bogerman Mechanical Seal Co., Ltd., gear one 12 is fixed on the connecting pipe 5, the outside of kettle cover 2 is fixedly equipped with support frame 13, the support frame 13 is right angle bending plate structure, gear two 14 is rotatably arranged on the lower part of support frame 13, gear two 14 is engaged with gear one 12, the upper part of support frame 13 is equipped with driving motor 15, the output end of driving motor 15 is rotatably penetrated through support frame 13 and connected to gear two 14, start driving motor 15, gear two 14 drives gear one 12 to rotate, gear one 12 drives connecting pipe 5 and branch pipe 6 and atomizing nozzle 7 on it to rotate, to increase the uniformity of defoaming agent spraying.

[0025] As Figure 2As shown, the top of the reaction kettle 1 is provided with an outer plate 16, the edge of the kettle cover 2 and the outer plate 16 are provided with two recesses 17 opposite to each other, the recess 17 of the outer plate 16 is rotatably connected with a stud 18, the top of the stud 18 is clamped into the recess 17 of the kettle cover 2, the top of the stud 18 is threadedly connected with a nut 19, the nut 19 is pressed against the kettle cover 2, the nut 19 is loosened, the stud 18 is rotated out of the recess 17, and then the kettle cover 2 can be removed.

[0026] As shown in the drawings, Figure 1 The top of the reaction kettle 1 is provided with a feed inlet 20, the bottom of the reaction kettle 1 is provided with a discharge outlet 21, the feed inlet 20 is provided with a blocking cap 22, and the discharge outlet 21 is provided with a valve 23.

[0027] In specific use, when the biological fermentation reaction starts, as the reaction proceeds, foam is gradually generated in the reaction kettle 1, when the foam rises and contacts the conical defoaming net 4, the net surface with different heights and angles can act on the foam, so that the foam is more easily cut and broken, thereby improving the defoaming efficiency, the conical shape is beneficial to guiding the flow of liquid, the liquid can flow down along the inclined surface of the cone naturally, so that the gas-liquid separation is more smooth, at the same time, according to the characteristics of the reaction system and the foam generation, the extraction pump 11 is started to deliver the defoaming agent to the branch pipe 6 through the connecting pipe 5, and the defoaming agent is uniformly sprayed on the surface of the foam by the atomizing nozzle 7, at the same time, the driving motor 15 continuously works to drive the atomizing nozzle 7 to rotate, so as to ensure that the defoaming agent can comprehensively cover the foam in the reaction kettle 1.

[0028] The above describes the utility model and its implementation mode, which is not limited, and the drawings only show one of the implementation modes of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired thereby, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed, which should belong to the protection scope of the utility model.

Claims

1. A defoaming device for a bioreactor, characterized by: Including the reaction kettle, the top of the kettle is detachably provided with a kettle cover, the inner side wall of the kettle cover is provided with a support, the support is detachably provided with a defoaming net, the defoaming net is provided in a conical structure, the top of the inner side of the kettle cover is movably provided with a connecting pipe extending to the outside of the reaction kettle, the lower end of the connecting pipe is connected in parallel with a plurality of branch pipes, and the lower end of the branch pipe is provided with a plurality of atomizing nozzles.

2. The defoaming device of a bioreactor according to claim 1, characterized in that: The top wall of the defoaming net is provided with a bolt, the support is provided with a jack, the bolt passes through the jack and is fixed by a nut.

3. The defoaming device of a bioreactor according to claim 1, characterized in that: The outer side of the kettle cover is provided with a suction pump, the output end of the suction pump is connected with the connecting pipe through a rotary sealing piece, the connecting pipe is fixed with a gear one, the outer side of the kettle cover is fixedly provided with a support frame, the lower part of the support frame is rotatably provided with a gear two, the gear two is engaged with the gear one, the upper part of the support frame is provided with a driving motor, the output end of the driving motor is rotatably connected with the gear two.

4. The defoaming device of a bioreactor according to claim 1, characterized in that: The top of the reaction kettle is provided with an outward turning plate, the edge of the kettle cover and the peripheral position of the outward turning plate are provided with two recesses opposite to each other, the recesses of the outward turning plate are rotatably connected with studs through shafts, the top of the stud is clamped into the recess of the kettle cover, the top of the stud is threadedly connected with a nut two, and the nut two is pressed against the kettle cover.

5. The defoaming device of a bioreactor according to claim 1, characterized in that: The top of the reaction kettle is provided with a feeding port, the bottom of the reaction kettle is provided with a discharging port, the feeding port is provided with a plugging cap, and the discharging port is provided with a valve.

6. The antifoam device for a bioreactor according to claim 1, characterized in that: The support is provided in a cross-shaped structure.

7. The defoaming device of a bioreactor according to claim 3, characterized in that: The defoaming net is made of stainless steel mesh, and the support frame is a right-angle bent plate structure.

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