Fermenter defoaming device and medical microorganism culture defoaming method

Abstract

The application discloses a fermenting tank defoaming device and a medical microorganism culture defoaming method, and relates to the field of microorganism culture equipment. In the application, the fermenting tank is detected by a foam detection sensor, and when foam is detected in the fermenting tank, a peristaltic pump is started to deliver defoaming agent in a defoaming agent storage tank to the fermenting tank to perform defoaming treatment on the fermenting tank, so that the accumulation of foam does not affect the stirring and fermentation effect of the fermenting tank. The delivery of the defoaming agent by the peristaltic pump prevents bacteria and viruses from entering the fermenting tank during the delivery of the defoaming agent, prevents the fermenting tank from being polluted by the bacteria and viruses, and ensures the normal fermentation process. The driving and adjustment of the pressure wheel by the hydraulic telescopic assembly can separate the pressure wheel from the hose when the peristaltic pump is not working, so that the hose can be reset and rebound, the permanent deformation of the hose caused by long-term extrusion by the pressure wheel is prevented, and the service life of the hose is prolonged.

Description

Technical Field

[0001] This invention belongs to the field of microbial culture equipment, and more specifically, it relates to a defoamer for fermenters and a defoaming method for medical microbial culture. Background Technology

[0002] Fermentation tanks are core industrial devices used for microbial fermentation. Their main function is to provide a controllable, efficient, and sterile environment for specific biochemical reactions, thereby utilizing the metabolic activities of microorganisms to produce desired products, and also to cultivate microorganisms. However, during the liquid-based fermentation process, foam is easily generated. Excessive foam affects the stirring effect, and in severe cases, it can cause the liquid to leak out of the fermentation tank through the exhaust pipe, affecting the environment and causing waste. Summary of the Invention

[0003] In view of the problems in related technologies, the present invention proposes a defoamer for fermentation tanks and a defoaming method for medical microbial culture, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0004] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution: The present invention is a defoamer for a fermenter, comprising a fermenter, a foam detection sensor, a peristaltic pump and a self-closing connector. The foam detection sensor is installed on the top of the fermenter and the detection end of the foam detection sensor extends to the upper part of the interior of the fermenter. The peristaltic pump includes a pump body assembly, a rotary drive assembly, a hydraulic telescopic assembly, a pressure roller, and a hose. The hose is installed on the outer ring inside the pump body assembly, with one end connected to the fermentation tank and the other end connected to the defoamer storage tank. The hydraulic telescopic assembly is installed inside the pump body assembly, and a pressure roller is rotatably mounted on the end of the hydraulic telescopic assembly. The hydraulic telescopic assembly can drive the pressure roller to move by contraction and extension to squeeze the hose or move it away from the hose. The rotary drive assembly can drive the hydraulic telescopic assembly and the pressure roller to rotate in a circular motion inside the pump body assembly. The hydraulic telescopic assembly is connected to an external hydraulic drive device via a self-closing connector. The self-closing connector includes an inner connector assembly and an outer connector assembly. The inner connector assembly is fixedly connected to the hydraulic telescopic assembly, and the outer connector assembly is installed on the pump body assembly. The inner connector assembly and the outer connector assembly can automatically connect when they are connected and automatically close when they are separated.

[0005] Furthermore, a feed inlet is fixedly installed at the top of the fermenter, and a conduit is connected to the feed inlet, with one end of the conduit connected to the outlet end of the hose.

[0006] Furthermore, the pump body assembly includes a pump housing and a pump cover. The outer rings of the pump housing and the pump cover are each fixedly equipped with a plurality of circumferentially distributed connecting lugs, and the corresponding connecting lugs are locked together by bolts and nuts. The pump casing has an inlet and an outlet installed on its outer ring. The hose is arc-shaped and located on the inner circumferential wall of the pump casing, with its two ends connected to the inlet and outlet, respectively.

[0007] Furthermore, the hydraulic telescopic assembly includes a hydraulic cylinder, which is rotatably mounted inside the pump housing. The outer ring of the hydraulic cylinder is connected to and mounted with a plurality of circumferentially distributed hydraulic telescopic shafts, and the pressure rollers are rotatably mounted at the ends of the hydraulic telescopic shafts. The rotary drive assembly includes a motor, which is fixedly mounted on the outer wall of the pump housing, and the output shaft of the motor is fixedly connected to the hydraulic cylinder. The inner connector assembly is fixedly connected to the hydraulic cylinder, and a connector sleeve is fixedly installed on the pump cover. The outer connector assembly is rotatably installed on the connector sleeve. When the pump housing and the pump cover are connected, the inner connector assembly and the outer connector assembly can be synchronously sealed and connected. When the pump housing and the pump cover are disassembled and separated, the inner connector assembly and the outer connector assembly can be synchronously separated.

[0008] Furthermore, the hydraulic telescopic shaft includes a main shaft, which is fixedly installed on the outer ring of the hydraulic cylinder, and the main shaft and the hydraulic cylinder are connected through a guide nozzle. A hydraulic plug is slidably installed inside the main shaft, and a telescopic shaft is fixedly installed on the outer end of the hydraulic plug. A return spring is fitted on one end of the telescopic shaft and abuts against the outer end of the hydraulic plug. A pressure roller frame is fixedly installed on the other end of the telescopic shaft, and a pressure roller is rotatably installed on the pressure roller frame.

[0009] Furthermore, the external connector assembly includes an external connector, and the internal connector assembly includes an internal connector. Both the external connector and the internal connector are provided with a resilient self-closing valve core unit. The two resilient self-closing valve core units can abut against each other and retract to open when the external connector and the internal connector are mated, so as to make the external connector and the internal connector conductive. The two resilient self-closing valve core units can also automatically move and close under their own elasticity when the external connector and the internal connector move and separate, so as to seal the external connector and the internal connector.

[0010] Furthermore, the elastic self-closing valve core unit includes a valve core and a guide groove formed on the outer periphery of the valve core. A partition is fixedly installed on the inner ring of the valve core. An outer guide hole and an inner guide hole are respectively formed on both sides of the partition on the valve core. A limiting plate is fixedly installed on the outer ring of the valve core between the outer guide hole and the inner guide hole. The limiting plate is slidably installed in the guide groove. A through hole is formed on the limiting plate. A pressure spring is fitted on the outer ring of the valve core at one end of the inner guide hole. One end of the pressure spring abuts against the end wall of the guide groove, and the other end of the pressure spring abuts against the limiting plate.

[0011] Furthermore, multiple circumferentially distributed limiting blocks are fixedly installed on the mating ends between the outer and inner connectors. When the outer and inner connectors are mated, the two sets of limiting blocks can be staggered and locked together to lock the outer and inner connectors together. Both the outer and inner connectors are provided with a sealing groove on the outer ring of the elastic self-closing valve core unit, and a sealing ring is installed in the sealing groove.

[0012] Furthermore, a rotary joint is installed on the outer end of the outer connector, and the outer connector is rotatably connected to the hydraulic drive device through the rotary joint.

[0013] This invention also discloses a defoaming method for medical microbial culture, the specific steps of which are as follows: Microorganisms are fermented and cultured in a fermenter, and foam detection sensors are used to detect foam in the fermenter. When foam is detected, a peristaltic pump is activated. First, the extension of the hydraulic telescopic component drives the pressure roller to move and squeeze the hose. Then, the rotation drive component drives the hydraulic telescopic component and the pressure roller to rotate in a circular motion within the pump body assembly. The circular motion of the pressure roller squeezes and peristalts the hose, causing the hose to draw out the defoamer from the defoamer storage tank during the peristaltic process. The defoamer is then pumped into the fermenter to defoam. After defoaming is completed, the retraction of the hydraulic telescopic component drives the pressure roller to move away from the hose, releasing the pressure on the hose.

[0014] The present invention has the following beneficial effects: 1. In this invention, a foam detection sensor is used to detect foam in the fermenter. When foam is detected in the fermenter, a peristaltic pump is activated to deliver defoamer from the defoamer storage tank into the fermenter for defoaming treatment. This prevents foam accumulation from affecting the fermentation and stirring effect, and also prevents the liquid from leaking out of the fermenter through the exhaust pipe, avoiding environmental pollution and waste. Furthermore, the peristaltic pump delivery of the defoamer prevents bacteria and viruses from entering the fermenter during delivery, thus preventing contamination and ensuring the normal operation of the fermentation process.

[0015] 2. In this invention, when the peristaltic pump is working, the extension of the hydraulic telescopic component drives the pressure roller to move and squeeze the hose. Then, the rotation drive component drives the hydraulic telescopic component and the pressure roller to rotate in a circular motion within the pump body assembly. The circularly moving pressure roller squeezes the hose and causes it to peristalse. During this peristaltic motion, the hose draws out the defoamer from the defoamer storage tank and pumps it into the fermentation tank to defoam. After defoaming is completed, the retraction of the hydraulic telescopic component drives the pressure roller to move away from the hose, releasing the pressure on the hose. By adjusting the drive of the pressure roller through the hydraulic telescopic component, the pressure roller can be driven to separate from the hose when the peristaltic pump is not working, allowing the hose to return to its original position and spring back. This prevents the hose from being permanently deformed due to long-term pressure from the pressure roller, thus improving the service life of the hose.

[0016] 3. In this invention, the hydraulic telescopic component is connected to an external hydraulic drive device through a self-closing connector, so that the hydraulic drive device can drive the hydraulic telescopic component to extend and retract. When the pump body assembly needs to be disassembled to replace the hose, the inner and outer connector components in the self-closing connector can automatically seal and close when the pump body assembly is disassembled, thereby sealing the connection port between the hydraulic telescopic component and the hydraulic drive device and preventing hydraulic oil leakage.

[0017] Of course, any product implementing this invention does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, the drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the defoamer for the fermenter of the present invention; Figure 2 For the present invention Figure 1 A magnified schematic diagram of the structure at point A; Figure 3 This is one of the three-dimensional structural schematic diagrams of the peristaltic pump of the present invention; Figure 4 This is the second three-dimensional structural schematic diagram of the peristaltic pump of the present invention; Figure 5 For the present invention Figure 4 A magnified schematic diagram of the structure at point B; Figure 6 This is the third three-dimensional structural schematic diagram of the peristaltic pump of the present invention; Figure 7 This is the fourth three-dimensional structural schematic diagram of the peristaltic pump of the present invention; Figure 8 For the present invention Figure 7 A magnified schematic diagram of the structure at point C.

[0020] In the diagram: 1. Fermentation tank; 11. Feed inlet; 2. Foam detection sensor; 3. Peristaltic pump; 31. Pump housing; 32. Motor; 33. Pump cover; 34. Bolt; 35. Nut; 36. Connecting lug; 37. Liquid inlet; 38. Liquid outlet; 39. Connector sleeve; 310. Hydraulic cylinder; 311. Main shaft; 312. Telescopic shaft; 313. Pressure roller frame; 314. Pressure roller; 315. Hoses; 316. 317. Hydraulic plug; 318. Return spring; 4. Self-closing connector; 41. External connector; 42. Rotary connector; 43. Internal connector; 44. Sealing groove; 45. Limiting block; 46. Valve core; 47. Sealing ring; 48. Guide groove; 49. External guide hole; 410. Partition plate; 411. Internal guide hole; 412. Limiting plate; 413. Through hole; 414. Pressure spring; 5. Conduit. Detailed Implementation

[0021] The technical solutions of the embodiments of the invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the invention.

[0022] In the description of this invention, it should be understood that the terms "opening", "upper", "lower", "top", "middle", "inner", etc., which indicate orientation or positional relationship, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the invention. Example

[0023] Please see Figures 1-3As shown, this invention is a defoamer for a fermenter, comprising a fermenter 1, a foam detection sensor 2, a peristaltic pump 3, and a self-closing connector 4. The foam detection sensor 2 is installed on the top of the fermenter 1, and its detection end extends to the upper part of the interior of the fermenter 1. The peristaltic pump 3 includes a pump body assembly, a rotary drive assembly, a hydraulic telescopic assembly, a pressure roller 314, and a hose 315. The hose 315 is installed on the outer ring inside the pump body assembly, with one end connected to the fermenter 1 and the other end connected to the defoamer storage tank. The hydraulic telescopic assembly is installed inside the pump body assembly. The end of the component is rotatably mounted with a pressure roller 314. The hydraulic telescopic assembly can drive the pressure roller 314 to move by contraction and extension to squeeze the hose 315 or move it away from the hose 315. The rotation drive assembly can drive the hydraulic telescopic assembly and the pressure roller 314 to rotate in a circular motion within the pump body assembly. The hydraulic telescopic assembly is connected to an external hydraulic drive device through a self-closing connector 4. The self-closing connector 4 includes an inner connector assembly and an outer connector assembly. The inner connector assembly is fixedly connected to the hydraulic telescopic assembly, and the outer connector assembly is installed on the pump body assembly. The inner connector assembly and the outer connector assembly can automatically conduct when connected and can automatically close when separated.

[0024] When the defoamer of the fermentation tank is working, the foam detection sensor 2 detects foam in the fermentation tank 1. When foam is detected in the fermentation tank 1, the peristaltic pump 3 is started. First, the extension of the hydraulic telescopic component drives the pressure roller 314 to move and squeeze the hose 315. Then, the rotation drive component drives the hydraulic telescopic component and the pressure roller 314 to rotate in the pump body component to make a circular motion. The circular motion of the pressure roller 314 squeezes the hose 315 to peristalsis, so that the hose 315 draws out the defoamer in the defoamer storage tank during the peristalsis and pumps the defoamer into the fermentation tank 1 to defoam. After the defoaming is completed, the retraction of the hydraulic telescopic component drives the pressure roller 314 to move away from the hose 315, so that the pressure roller 314 relaxes the squeeze on the hose 315. The system, through the cooperation of foam detection sensor 2 and peristaltic pump 3, delivers defoamer from the defoamer storage tank to fermenter 1 when foam is generated inside fermenter 1, performing defoaming treatment to prevent foam accumulation from affecting the stirring and fermentation effect of fermenter 1. It also prevents the liquid from leaking out of fermenter 1 through the exhaust pipe, avoiding environmental pollution and waste. Furthermore, the peristaltic pump 3 prevents bacteria and viruses from entering fermenter 1 during delivery, ensuring the fermentation process proceeds normally. The hydraulic telescopic component adjusts the drive of the pressure roller 314, enabling the defoamer to... When the pump 3 is not in operation, the drive roller 314 separates from the hose 315, allowing the hose 315 to return to its original position and spring back. This prevents the hose 315 from being permanently deformed due to long-term compression by the roller 314, thus improving the service life of the hose 315. The hydraulic telescopic assembly is connected to an external hydraulic drive device through the self-closing connector 4, enabling the hydraulic drive device to drive the hydraulic telescopic assembly for telescopic adjustment. When the pump body assembly needs to be disassembled to replace the hose 315, the inner and outer connector components in the self-closing connector 4 automatically seal and close when the pump body assembly is disassembled, thereby sealing the connection port between the hydraulic telescopic assembly and the hydraulic drive device and preventing hydraulic oil leakage.

[0025] Furthermore, the hydraulic drive device is a hydraulic pump. The foam detection sensor 2, the peristaltic pump 3, and the hydraulic pump are all connected to the control system of the fermentation tank 1, so that when the foam detection sensor 2 detects foam, the control system can control the peristaltic pump 3 and the hydraulic pump to automatically start and deliver the defoamer to achieve automatic defoaming. Example

[0026] Please see Figures 1-5 As shown, the difference between this embodiment and the above embodiment is that the top of the fermenter 1 is fixedly installed with a feed inlet 11, and a conduit 5 is connected to the feed inlet 11. One end of the conduit 5 is connected to the outlet end of the hose 315. The pump body assembly includes a pump housing 31 and a pump cover 33. The outer rings of the pump housing 31 and the pump cover 33 are fixedly installed with a plurality of circumferentially distributed connecting ears 36, and the corresponding connecting ears 36 are locked together by bolts 34 and nuts 35. The outer ring of the pump housing 31 is equipped with a liquid inlet 37 and a liquid outlet 38. The hose 315 is arc-shaped and arranged on the inner circumferential wall of the pump housing 31, and the two ends of the hose 315 are respectively connected to the liquid inlet 37 and the liquid outlet 38. The hydraulic telescopic assembly includes a hydraulic cylinder 310, which is rotatably mounted inside the pump housing 31. Multiple circumferentially distributed hydraulic telescopic shafts are connected to the outer ring of the hydraulic cylinder 310, and pressure rollers 314 are rotatably mounted at the ends of each hydraulic telescopic shaft. The rotary drive assembly includes a motor 32, which is fixedly mounted on the outer wall of the pump housing 31, and its output shaft is fixedly connected to the hydraulic cylinder 310. An inner connector assembly is fixedly mounted on the hydraulic cylinder 310, and a connector sleeve 39 is fixedly mounted on the pump cover 33. An outer connector assembly is rotatably mounted on the connector sleeve 39. When the pump housing 31 and the pump cover 33 are connected, the inner and outer connector assemblies can be synchronously sealed and connected. When the pump housing 31 and the pump cover 33 are disassembled, the inner and outer connector assemblies can be synchronously separated.

[0027] When the peristaltic pump 3 is working, the hydraulic drive device first delivers hydraulic oil into the hydraulic cylinder 310 through the external connector assembly and the internal connector assembly. Then, the hydraulic oil is distributed by the hydraulic cylinder 310 to each hydraulic telescopic shaft, driving the hydraulic telescopic shafts to extend. This causes the hydraulic telescopic shafts to move the pressure rollers 314 closer to the hose 315, compressing the hose 315. Afterwards, the motor 32 drives the hydraulic cylinder 310 to rotate. At this time, the hydraulic cylinder 310 drives the hydraulic telescopic shafts and the pressure rollers 314 to rotate in a circular motion, causing the pressure rollers... 314 squeezes and peristalts the hose 315. During the peristalsis, the hose 315 draws defoamer from the defoamer storage tank through the liquid inlet 37 and delivers the defoamer to the liquid level inside the fermenter 1 through the liquid outlet 38, the conduit 5 and the feed inlet 11, thereby performing defoaming treatment inside the fermenter 1. When the hose 315 is worn and deformed and needs to be replaced, loosen the bolts 34 and nuts 35 to disassemble and separate the pump housing 31 and the pump cover 33. At this time, the pump housing 31 and the pump cover 33 can drive the inner connector assembly and the outer connector assembly to separate synchronously.

[0028] Furthermore, the hydraulic telescopic shaft includes a main shaft 311, which is fixedly installed on the outer ring of the hydraulic cylinder 310, and the main shaft 311 and the hydraulic cylinder 310 are connected through a guide nozzle 316. A hydraulic plug 317 is slidably installed inside the main shaft 311, and a telescopic shaft 312 is fixedly installed on the outer end of the hydraulic plug 317. A return spring 318 is fitted on one end of the telescopic shaft 312 and abuts against the outer end of the hydraulic plug 317. A pressure roller frame 313 is fixedly installed on the other end of the telescopic shaft 312, and a pressure roller 314 is rotatably installed on the pressure roller frame 313. When the hydraulic cylinder 310, driven by the hydraulic drive device, delivers hydraulic oil into the main shaft 311 through the guide nozzle 316, the hydraulic plug 317 can move outward under the hydraulic drive of the hydraulic oil, thereby driving the telescopic shaft 312, the pressure roller frame 313, and the pressure roller 314 to move outward, so that the pressure roller 314 squeezes and deforms the hose 315, which can drive the hose 315 to peristaltic work during subsequent circumferential movement; after the defoamer is delivered, the hydraulic drive device sucks and depressurizes the hydraulic cylinder 310. At this time, the hydraulic oil in the main shaft 311 is sucked and delivered into the hydraulic cylinder 310 through the guide nozzle 316. The hydraulic plug 317, the telescopic shaft 312, the pressure roller frame 313, and the pressure roller 314 move inward and reset under the action of negative pressure suction force and the reset elastic force of the reset spring 318, so that the pressure roller 314 separates from the hose 315 and no longer squeezes the hose 315. Example

[0029] Please see Figures 4-8 As shown, the difference between this embodiment and the above embodiment is that the external connector assembly includes an external connector 41, and the internal connector assembly includes an internal connector 43. Both the external connector 41 and the internal connector 43 are internally provided with elastic self-closing valve core units. The two elastic self-closing valve core units can retract and open when the external connector 41 and the internal connector 43 are mated, allowing communication between them. The two elastic self-closing valve core units can also automatically move and close under their own elasticity when the external connector 41 and the internal connector 43 move apart, sealing the external connector 41 and the internal connector 43. The elastic self-closing valve core unit includes a valve core 46 and an opening... A guide groove 48 is provided on the outer periphery of the valve core 46. A partition plate 410 is fixedly installed on the inner ring of the valve core 46. An outer guide hole 49 and an inner guide hole 411 are respectively located on both sides of the partition plate 410. A limiting plate 412 is fixedly installed on the outer ring of the valve core 46 between the outer guide hole 49 and the inner guide hole 411. The limiting plate 412 is slidably installed in the guide groove 48. A through hole 413 is provided on the limiting plate 412. A pressure spring 414 is fitted on the outer ring of the valve core 46 at one end of the inner guide hole 411. One end of the pressure spring 414 abuts against the end wall of the guide groove 48, and the other end of the pressure spring 414 abuts against the limiting plate 412. The outer connector 41 is rotatably mounted on the connector sleeve 39, and the inner connector 43 is fixedly connected to the hydraulic cylinder 310. The outer ends of the valve cores 46 in the outer connector 41 and inner connector 43 extend to the outside of the connection ends of the outer connector 41 and inner connector 43 under the elastic force of the pressure spring 414. At this time, the outer guide hole 49 on the valve core 46 seals against the inner wall of the corresponding outer connector 41 and inner connector 43, so that the valve core 46 is in a sealed state. When the pump housing 31 and pump cover 33 are connected, the outer connector 41 and inner connector 43 are connected. The two valve cores 46 in the outer connector 41 and the inner connector 43 are connected to each other, and the valve cores 46 can retract and abut against each other during the connection process. At this time, the outer guide hole 49 on the valve core 46 moves into the guide groove 48, so that the two ends of the internal partition 410 of the valve core 46 are connected through the outer guide hole 49, the through hole 413 and the inner guide hole 411, thereby putting the valve core 46 in the open state. At this time, the hydraulic cylinder 310 can be connected to the external hydraulic drive equipment through the outer connector 41 and the inner connector 43, so that the hydraulic drive equipment can hydraulically drive the hydraulic cylinder 310 and the hydraulic telescopic shaft.

[0030] Furthermore, multiple circumferentially distributed limiting blocks 45 are fixedly installed on the mating ends between the outer connector 41 and the inner connector 43. When the outer connector 41 and the inner connector 43 are mated, the two sets of limiting blocks 45 can be staggered and locked to lock the connection between the outer connector 41 and the inner connector 43. When the outer connector 41 and the inner connector 43 are mated, the limiting blocks 45 at their ends are staggered and locked in sequence, thereby locking the connection between the outer connector 41 and the inner connector 43 and improving the stability of the connection between the outer connector 41 and the inner connector 43.

[0031] Furthermore, both the outer connector 41 and the inner connector 43 are provided with a sealing groove 44 located on the outer ring of the elastic self-closing valve core unit. A sealing ring 47 is installed in the sealing groove 44. When the outer connector 41 and the inner connector 43 are connected, the sealing grooves 44 at both ends are aligned and clamped and fixed at the joint, thereby improving the sealing performance at the joint.

[0032] Furthermore, a rotary joint 42 is installed on the outer end of the outer connector 41. The outer connector 41 is rotatably connected to the hydraulic drive equipment through the rotary joint 42, so that when the outer connector 41 rotates with the hydraulic cylinder 310 and the inner connector 43, it will not drive the hydraulic drive equipment to rotate, which helps to improve the stability of the connection between the outer connector 41 and the hydraulic drive equipment. Example

[0033] This embodiment discloses a defoaming method for medical microbial culture, the specific steps of which are as follows: Microorganisms are fermented and cultured in fermenter 1, and foam is detected in fermenter 1 by foam detection sensor 2. When foam is detected in fermenter 1, peristaltic pump 3 is started. First, the extension of hydraulic telescopic component drives pressure roller 314 to move and squeeze hose 315. Then, the rotation drive component drives hydraulic telescopic component and pressure roller 314 to rotate in a circular motion in pump body assembly. The circular motion of pressure roller 314 squeezes hose 315 and causes it to peristalt. During the peristalsis, hose 315 draws defoamer from defoamer storage tank and pumps defoamer into fermenter 1 to defoam. After defoaming is completed, the retraction of hydraulic telescopic component drives pressure roller 314 to move away from hose 315, so that pressure roller 314 relaxes the squeeze on hose 315.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] The preferred embodiments of the invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A defoamer for a fermentation tank, characterized in that: The device includes a fermenter, a foam detection sensor, a peristaltic pump, and a self-closing connector. The foam detection sensor is installed on the top of the fermenter, and the detection end of the foam detection sensor extends to the upper part of the interior of the fermenter. The peristaltic pump includes a pump body assembly, a rotary drive assembly, a hydraulic telescopic assembly, a pressure roller, and a hose. The hose is installed on the outer ring inside the pump body assembly, with one end connected to the fermentation tank and the other end connected to the defoamer storage tank. The hydraulic telescopic assembly is installed inside the pump body assembly, and a pressure roller is rotatably mounted on the end of the hydraulic telescopic assembly. The hydraulic telescopic assembly can drive the pressure roller to move by contraction and extension to squeeze the hose or move it away from the hose. The rotary drive assembly can drive the hydraulic telescopic assembly and the pressure roller to rotate in a circular motion inside the pump body assembly. The hydraulic telescopic assembly is connected to an external hydraulic drive device via a self-closing connector. The self-closing connector includes an inner connector assembly and an outer connector assembly. The inner connector assembly is fixedly connected to the hydraulic telescopic assembly, and the outer connector assembly is installed on the pump body assembly. The inner connector assembly and the outer connector assembly can automatically conduct when connected and automatically close when separated. The pump body assembly includes a pump housing and a pump cover. The outer rings of the pump housing and the pump cover are each fixedly equipped with a plurality of circumferentially distributed connecting lugs, and the corresponding connecting lugs are locked together by bolts and nuts. The outer ring of the pump casing is equipped with an inlet and an outlet. The hose is arc-shaped and located on the inner circumferential wall of the pump casing, with both ends of the hose connected to the inlet and outlet respectively. The hydraulic telescopic assembly includes a hydraulic cylinder, which is rotatably mounted inside the pump housing. The outer ring of the hydraulic cylinder is connected to and mounted with a plurality of circumferentially distributed hydraulic telescopic shafts, and the pressure rollers are rotatably mounted at the ends of the hydraulic telescopic shafts. The rotary drive assembly includes a motor, which is fixedly mounted on the outer wall of the pump housing, and the output shaft of the motor is fixedly connected to the hydraulic cylinder. The inner connector assembly is fixedly connected to the hydraulic cylinder, and a connector sleeve is fixedly installed on the pump cover. The outer connector assembly is rotatably installed on the connector sleeve. When the pump housing and the pump cover are connected, the inner connector assembly and the outer connector assembly can be synchronously sealed and connected. When the pump housing and the pump cover are disassembled and separated, the inner connector assembly and the outer connector assembly can be synchronously separated. The hydraulic telescopic shaft includes a main shaft, which is fixedly installed on the outer ring of the hydraulic cylinder, and the main shaft and the hydraulic cylinder are connected through a guide nozzle. A hydraulic plug is slidably installed inside the main shaft, and a telescopic shaft is fixedly installed on the outer end of the hydraulic plug. A return spring is fitted on one end of the telescopic shaft and abuts against the outer end of the hydraulic plug. A pressure roller frame is fixedly installed on the other end of the telescopic shaft, and a pressure roller is rotatably installed on the pressure roller frame.

2. The defoamer for a fermentation tank according to claim 1, characterized in that: The fermenter is fixedly equipped with a feed inlet at the top, and a conduit is connected to the feed inlet. One end of the conduit is connected to the outlet end of the hose.

3. A defoamer for a fermentation tank according to any one of claims 1-2, characterized in that: The external connector assembly includes an external connector, and the internal connector assembly includes an internal connector. Both the external and internal connectors are equipped with elastic self-closing valve core units. The two elastic self-closing valve core units can retract and open when the external and internal connectors are mated, so as to make the external and internal connectors conductive. The two elastic self-closing valve core units can also automatically move and close under their own elasticity when the external and internal connectors move and separate, so as to seal the external and internal connectors.

4. The defoamer for a fermentation tank according to claim 3, characterized in that: The elastic self-closing valve core unit includes a valve core and a guide groove formed on the outer periphery of the valve core. A partition is fixedly installed on the inner ring of the valve core. An outer guide hole and an inner guide hole are respectively opened on both sides of the partition on the valve core. A limiting plate is fixedly installed on the outer ring of the valve core between the outer guide hole and the inner guide hole. The limiting plate is slidably installed in the guide groove. A through hole is opened on the limiting plate. A pressure spring is fitted on the outer ring of the valve core at one end of the inner guide hole. One end of the pressure spring abuts against the end wall of the guide groove, and the other end of the pressure spring abuts against the limiting plate.

5. A defoamer for a fermentation tank according to claim 4, characterized in that: Multiple circumferentially distributed limiting blocks are fixedly installed on the mating ends between the outer and inner connectors. When the outer and inner connectors are mated, the two sets of limiting blocks can be staggered and locked together to lock the outer and inner connectors together. Both the outer and inner connectors are provided with a sealing groove on the outer ring of the elastic self-closing valve core unit, and a sealing ring is installed in the sealing groove.

6. The defoamer for a fermentation tank according to claim 5, characterized in that: A rotary joint is installed on the outer end of the external connector, and the external connector is rotatably connected to the hydraulic drive equipment through the rotary joint.

7. A method for defoaming medical microbial cultures, using the fermenter defoamer according to any one of claims 1-6, characterized in that, The specific steps are as follows: Microorganisms are fermented and cultured in a fermenter, and foam detection sensors are used to detect foam in the fermenter. When foam is detected, a peristaltic pump is activated. First, the extension of the hydraulic telescopic component drives the pressure roller to move and squeeze the hose. Then, the rotation drive component drives the hydraulic telescopic component and the pressure roller to rotate in a circular motion within the pump body assembly. The circular motion of the pressure roller squeezes and peristalts the hose, causing the hose to draw out the defoamer from the defoamer storage tank during the peristaltic process. The defoamer is then pumped into the fermenter to defoam. After defoaming is completed, the retraction of the hydraulic telescopic component drives the pressure roller to move away from the hose, releasing the pressure on the hose.

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