Automatic equipment for low-temperature vacuum microwave sterilization and sterile filling

The automated equipment for low-temperature vacuum microwave sterilization and aseptic filling utilizes a vacuum pump, microwave generator, and stirring mechanism to solve the problems of low sterilization efficiency and poor sealing in existing equipment, thus achieving aseptic filling and efficient sterilization.

CN223752407UActive Publication Date: 2026-01-02SHANGHAI LANTAI MICROWAVE EQUIP MFGCO
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Patent Information

Application Number
CN202520165036.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-24
Publication Date
2026-01-02
Estimated Expiration
2035-01-24

AI Technical Summary

Technical Problem

Existing aseptic filling equipment requires sterilization before filling and it is difficult to ensure a tight seal, resulting in low and incomplete sterilization efficiency and contact between the liquid and the outside air.

Method used

The automated equipment for low-temperature vacuum microwave sterilization and aseptic filling uses a vacuum pump to create a vacuum, a microwave generator to sterilize, a condenser to condense, and a nitrogen tank to provide sterile nitrogen, thus achieving sterilization and aseptic filling of liquids in a vacuum environment. The addition of a stirring mechanism further improves sterilization efficiency.

Benefits of technology

It enables sterilization and filling in a sterile environment, avoiding contact between the liquid and the outside air, thus improving sterilization efficiency and the sterility of filling. It is suitable for sterilization and filling of agricultural products and medicinal materials.

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Abstract

The utility model discloses automatic equipment for low-temperature vacuum microwave sterilization and sterile filling. The automatic equipment comprises a box body, a control screen is fixed on the front surface of the box body, a sterile filling machine is arranged on the right side of the box body, a vacuum chamber is fixed in the box body, and a plurality of microwave generators are fixed on the outer side wall of the vacuum chamber. Sterilized liquid is fed into the vacuum chamber through the feeding pump and the air inlet pipe, the vacuum pump is started to pump out air in the vacuum chamber, the microwave generator is started to sterilize the sterilized liquid, the microwave generator can enable the sterilized liquid to reach the boiling point under negative pressure while sterilizing, and generated steam enters the condenser and enters the condenser. The condensed liquid returns to the vacuum chamber again through the one-way valve, then sterile nitrogen gas in the nitrogen tank enters the vacuum chamber for vacuum unloading, the discharging pump is started, the sterilized liquid is conveyed to the sterile filling machine for sterile filling, the whole sterilization process is not in contact with outside air, no strict requirement for the sterilization environment exists, and sterile filling can be achieved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sterilization and sterile filling, specifically to a low temperature vacuum microwave sterilization and sterile filling automation equipment. BACKGROUND

[0002] Sterile filling refers to the strict sterile control of containers, packaging materials, products and filling environment during the filling process to prevent bacterial and other microbial contamination. The significance of sterile filling lies in ensuring product quality and safety, especially for products susceptible to bacterial contamination, such as pharmaceuticals, food and cosmetics. Through sterile filling, the shelf life of products can be effectively extended, reducing product loss and waste, and improving product market competitiveness.

[0003] However, the existing sterile filling equipment still needs to sterilize the liquid to be filled before filling, and it is difficult to ensure the sealing of the liquid to be filled during sterilization and transportation, which may cause the liquid to be filled to come into contact with external air, resulting in low sterilization efficiency and incomplete sterilization. SUMMARY

[0004] To overcome the shortcomings of the prior art, the utility model provides a low temperature vacuum microwave sterilization and sterile filling automation equipment, which solves the problems raised in the background.

[0005] To achieve the above purpose, the utility model realizes the following technical scheme: a low temperature vacuum microwave sterilization and sterile filling automation equipment, comprising a box body, a control screen is fixed on the front surface of the box body, a sterile filling machine is arranged on the right side of the box body, a vacuum chamber is fixed inside the box body, a plurality of microwave generators are fixed on the outer side wall of the vacuum chamber, a feed pump is fixed on the lower surface inside the box body, feed pipes are fixed on both ends of the feed pump, the other end of the feed pipe on the right side is fixedly connected with the outer side wall of the vacuum chamber, a discharge pump is fixed on the right side of the lower surface inside the box body, discharge pipes are fixed on both ends of the discharge pump, and the other end of the discharge pipe on the left side is fixedly connected with the outer side wall of the vacuum chamber.

[0006] The other end of the right side discharge pipe is fixedly connected through the box and the aseptic filling machine, the outside of the vacuum chamber is provided with a condenser, the outer side wall of the condenser is fixedly provided with two fixed pipes, the inside lower surface of the box is fixedly provided with a nitrogen tank, the front surface of the nitrogen tank is fixedly provided with an air inlet pipe, the other end of the air inlet pipe is fixedly connected with the upper fixed pipe, the inside lower surface of the box is fixedly provided with a vacuum pump behind the nitrogen tank, the top end of the vacuum pump is fixedly provided with an air outlet pipe, the other end of the air outlet pipe is fixedly connected with the outer side wall of the lower fixed pipe, the outer side wall of the lower fixed pipe is fixedly provided with a check valve, the outer side wall of the air inlet pipe, the right side feed pipe and the left side discharge pipe are all fixedly provided with a pneumatic ball valve.

[0007] Preferably, the inside of the vacuum chamber is provided with a stirring mechanism, the stirring mechanism comprises a rotating rod, a plurality of stirring rods are fixedly arranged on the outer side wall of the rotating rod, a stirring motor is fixedly arranged in the box, and the right end of the rotating rod is connected with the stirring motor.

[0008] Preferably, a rotating barrel is rotatably connected to the outer side wall of the stirring rod, a round rod is rotatably connected to the inside of the stirring rod, one end of the round rod away from the rotating rod is fixedly connected with the rotating barrel, and a plurality of fixed rods are fixedly arranged on the outer side wall of the rotating barrel.

[0009] Preferably, a plurality of transmission rods are arranged on the outer side wall of the rotating rod, the transmission rods pass through and are rotatably connected with the plurality of stirring rods, and the transmission rods and the round rod are connected through bevel gears.

[0010] Preferably, a fixed gear ring is fixedly arranged on the left side of the inside of the vacuum chamber, a spur gear is fixedly arranged on the left end of the transmission rod, the spur gear is meshingly connected with the gear ring, a fixed ring is rotatably connected on the right side of the inside of the vacuum chamber, and the right end of the transmission rod is rotatably connected with the left side of the fixed ring.

[0011] Preferably, a temperature measuring instrument is fixedly arranged in the inside of the vacuum chamber.

[0012] Beneficial effects

[0013] The utility model provides a kind of low-temperature vacuum microwave sterilization and automatic equipment of aseptic filling.Compared with prior art, it has the following beneficial effects:

[0014] 1. The low-temperature vacuum microwave sterilization and aseptic filling automatic equipment, through the setting of the pneumatic valve, the feeding pipe, the feeding pump, the discharging pipe, the discharging pump, the nitrogen tank, the gas inlet pipe, the fixed pipe, the air pump, the vacuum pump and the aseptic filling machine, the sterilized liquid is sent into the vacuum chamber through the feeding pump and the gas inlet pipe, the air in the vacuum chamber is extracted by starting the vacuum pump, the sterilized liquid is sterilized by starting the microwave generator, the sterilized liquid reaches the boiling point under negative pressure at the same time of sterilization of the microwave generator, the generated steam enters the condenser, the condensed liquid returns to the vacuum chamber again through the check valve, then the sterile nitrogen gas in the nitrogen tank enters the vacuum chamber to unload the vacuum, the discharging pump is started, the sterilized liquid is delivered to the aseptic filling machine for aseptic filling, the whole sterilization process does not contact with the outside air, has no strict requirement on the sterilization environment and can realize aseptic filling, and is suitable for the recovery of cell liquid or extraction liquid of farmers for processing agricultural products, medicinal materials and the like.

[0015] 2. The low-temperature vacuum microwave sterilization and aseptic filling automatic equipment, through the setting of the stirring mechanism, the stirring motor is started, the stirring motor rotates with the rotating rod, the rotating rod rotates with the stirring rod, the stirring rod rotates with the transmission rod, the transmission rod rotates with the straight gear around the gear ring, so that the straight gear and the transmission rod rotate, the transmission rod rotates with the round rod, the rotating drum and the fixed rod through the bevel gear, so that the sterilized liquid can be stirred, and the rotation of the fixed rod improves the stirring efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structure schematic view of the utility model;

[0017] Figure 2 It is a structure schematic view of the utility model;

[0018] Figure 3 It is a structure schematic view of the utility model;

[0019] Figure 4 It is a structure schematic view of the vacuum chamber in the utility model;

[0020] Figure 5 It is a structure schematic view of the vacuum chamber in the utility model;

[0021] Figure 6 It is a structure schematic view of the utility model Figure 5 A structure schematic view of the utility model

[0022] Figure 7 It is a structure schematic view of the utility model

[0023] In the figure: 1, feed pump; 2, microwave generator; 3, temperature measuring instrument; 4, control screen; 5, stirring motor; 6, vacuum chamber; 7, box; 8, condenser; 9, check valve; 10, vacuum pump; 11, discharge pump; 12, pneumatic ball valve; 13, fixed rod; 14, nitrogen tank; 15, stirring rod; 16, sterile filling machine; 17, feed pipe; 18, discharge pipe; 19, air inlet pipe; 20, air exhaust pipe; 21, fixed pipe; 22, rotating rod; 23, stirring mechanism; 24, fixed ring; 25, transmission rod; 26, rotating drum; 27, straight gear; 28, gear ring; 29, round rod; 30, bevel gear. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0025] Please refer to Figures 1-7 The utility model provides a kind of technical scheme: a kind of low-temperature vacuum microwave sterilization and sterile filling's automation equipment, control screen 4 is fixed on the front surface of box 7, sterile filling machine 16 is equipped on the right side of box 7, vacuum chamber 6 is fixed in the inside of box 7, multiple microwave generators 2 are fixed on the outer side wall of vacuum chamber 6, feed pump 1 is fixed on the inside lower surface of box 7, feed pipe 17 is fixed on the both ends of feed pump 1, the other end of right side feed pipe 17 is fixedly connected with the outer side wall of vacuum chamber 6, discharge pump 11 is fixed on the inside lower surface right side of box 7, discharge pipe 18 is fixed on the both ends of discharge pump 11, the other end of left side discharge pipe 18 is fixedly connected with the outer side wall of vacuum chamber 6, the other end of right side discharge pipe 18 is fixedly connected with passing through box 7 and sterile filling machine 16, condenser 8 is equipped on the outer side of vacuum chamber 6, two fixed pipes 21 are fixed on the outer side wall of condenser 8, nitrogen tank 14 is fixed on the inside lower surface of box 7, air inlet pipe 19 is fixed on the front surface of nitrogen tank 14, the other end of air inlet pipe 19 is fixedly connected with upper fixed pipe 21, vacuum pump 10 is fixed on the inside lower surface of box 7 behind nitrogen tank 14, air exhaust pipe 20 is fixed on the top of vacuum pump 10, the other end of air exhaust pipe 20 is fixedly connected with the outer side wall of lower fixed pipe 21, check valve 9 is fixed on the outer side wall of lower fixed pipe 21, pneumatic ball valve 12 is fixed on the outer side wall of air inlet pipe 19, right side feed pipe 17 and left side discharge pipe 18, so that the whole sterilization process is not contacted with external air, and the sterile filling can be realized without harsh requirements on sterilization environment, temperature measuring instrument 3 is fixed in the inside of vacuum chamber 6, so that the temperature of vacuum chamber 6 can be detected.

[0026] Further, the inside of the vacuum chamber 6 is provided with a stirring mechanism 23, the stirring mechanism 23 comprises a rotating shaft 22, the outer side wall of the rotating shaft 22 is fixed with a plurality of stirring rods 15, the inside of the box body 7 is fixed with a stirring motor 5, the right end of the rotating shaft 22 is connected with the stirring motor 5, so that the liquid to be sterilized can be stirred, the outer side wall of the stirring rod 15 is rotatably connected with a rotating drum 26, the inside of the stirring rod 15 is rotatably connected with a round rod 29, the end, away from the rotating shaft 22, of the round rod 29 is fixedly connected with the rotating drum 26, the outer side wall of the rotating drum 26 is fixed with a plurality of fixed rods 13, so that the stirring efficiency can be improved, the outer side wall of the rotating shaft 22 is provided with a plurality of transmission rods 25, the transmission rods 25 pass through the plurality of stirring rods 15 and are rotatably connected with the stirring rods 15, the transmission rods 25 and the round rod 29 are drivingly connected through bevel gears 30, so that the round rod 29 and the rotating drum 26 can be rotated, the left side of the inside of the vacuum chamber 6 is fixed with a fixed gear ring 28, the left end of the transmission rod 25 is fixed with a spur gear 27, the spur gear 27 is meshingly connected with the gear ring 28, the right side of the inside of the vacuum chamber 6 is rotatably connected with a fixed ring 24, the right end of the transmission rod 25 is rotatably connected with the left side of the fixed ring 24, so that the transmission rod 25 can be rotated.

[0027] When working, the right pneumatic ball valve 12 is closed, the left pneumatic ball valve 12 is opened, the feed pump 1 is opened, the sterilized liquid is sent into the vacuum chamber 6, when the sterilized liquid reaches 1 / 3 to 2 / 3 of the vacuum chamber 6, the left pneumatic ball valve 12 and the feed pump 1 are closed, the vacuum pump 10 is opened to vacuumize the vacuum chamber 6, at the same time, the stirring motor 5 is opened to drive the rotating rod 22 to rotate, the rotating rod 22 drives the stirring rod 15 to rotate, the stirring rod 15 drives the transmission rod 25 to rotate, the transmission rod 25 drives the spur gear 27 to rotate around the gear ring 28, so that the spur gear 27 and the transmission rod 25 rotate, the transmission rod 25 drives the round rod 29, the rotating cylinder 26 and the fixed rod 13 to rotate through the bevel gear 30, so that the sterilized liquid can be stirred and uniformly turned over, when reaching the preset vacuum value of-50 to-98 KPa, the microwave generator 2 is opened to sterilize the sterilized liquid, because the microwave generator 2 sterilizes at the same time, the sterilized liquid reaches the boiling point under negative pressure, the generated steam enters the condenser 8, the condensed liquid enters the vacuum chamber 6 again through the one-way valve 9, when the sterilization time is over, the vacuum pump 10 is stopped, the upper pneumatic ball valve 12 is opened, the sterile nitrogen gas in the nitrogen tank 14 is used to unload the vacuum of the vacuum chamber 6, until the vacuum chamber 6 holds a micro-positive pressure of 3-5 KPa, the pneumatic ball valve 12 is opened and the discharge pump 11 is opened, the sterilized liquid is transported to the sterile filling machine 16 for sterile filling, the sterilized liquid is sent into the sterile filling machine 16 for filling, the whole sterilization process does not contact with the outside air, has no strict requirement on the sterilization environment and can realize sterile filling, is suitable for farmers to process agricultural products, medicinal materials and other drying processing of recovered cell liquid or extracted liquid sterilization and filling, and the packaging temperature can be controlled from normal temperature to sterilization temperature, when the sterilized liquid reaches the sterilization requirement, the material temperature is between 50-70 degrees, if normal temperature filling is needed, the microwave generator 2 is closed, the cooling water temperature of the condenser 8 is reduced to 10-15 degrees, the vacuum is gradually increased, the sterilized liquid is largely gasified and condensed in the condenser 8. When the temperature detector 3 detects the required temperature, the filling can be carried out.

[0028] Meanwhile, the contents not described in detail in the specification all belong to the prior art known by those skilled in the art.

[0029] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0030] While embodiments of the present application have been shown and described with reference to the figures, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the spirit and scope of the present application, which should be limited only by the scope of the appended claims and the equivalents thereof.

Claims

1. An automated device for low-temperature vacuum microwave sterilization and aseptic filling, comprising a housing (7), characterized in that: A control panel (4) is fixed on the front surface of the box (7). An aseptic filling machine (16) is provided on the right side of the box (7). A vacuum chamber (6) is fixed inside the box (7). Multiple microwave generators (2) are fixed on the outer wall of the vacuum chamber (6). A feed pump (1) is fixed on the lower inner surface of the box (7). Feed pipes (17) are fixed at both ends of the feed pump (1). The other end of the feed pipe (17) on the right side is fixedly connected to the outer wall of the vacuum chamber (6). A discharge pump (11) is fixed on the right side of the lower inner surface of the box (7). Discharge pipes (18) are fixed at both ends of the discharge pump (11). The other end of the discharge pipe (18) on the left side is fixedly connected to the outer wall of the vacuum chamber (6). The other end of the discharge pipe (18) on the right passes through the box (7) and is fixedly connected to the aseptic filling machine (16). A condenser (8) is provided on the outside of the vacuum chamber (6). Two fixed pipes (21) are fixed on the outer wall of the condenser (8). A nitrogen tank (14) is fixed on the lower inner surface of the box (7). An air inlet pipe (19) is fixed on the front surface of the nitrogen tank (14). The other end of the air inlet pipe (19) is fixedly connected to the upper fixed pipe (21). (7) has a vacuum pump (10) fixed on the lower inner surface of the nitrogen tank (14) behind it. The top of the vacuum pump (10) is fixed with a suction pipe (20). The other end of the suction pipe (20) is fixedly connected to the outer wall of the fixed pipe (21) below. The outer wall of the fixed pipe (21) below is fixed with a one-way valve (9). The outer walls of the inlet pipe (19), the feed pipe (17) on the right side and the discharge pipe (18) on the left side are all fixed with pneumatic ball valves (12).

2. The automated equipment for low-temperature vacuum microwave sterilization and aseptic filling according to claim 1, characterized in that: The vacuum chamber (6) is equipped with a stirring mechanism (23), which includes a rotating rod (22). Multiple stirring rods (15) are fixed on the outer side wall of the rotating rod (22). A stirring motor (5) is fixed inside the housing (7). The right end of the rotating rod (22) is connected to the stirring motor (5).

3. The automated equipment for low-temperature vacuum microwave sterilization and aseptic filling according to claim 2, characterized in that: The outer wall of the stirring rod (15) is rotatably connected to a rotating cylinder (26), and the inside of the stirring rod (15) is rotatably connected to a round rod (29). The end of the round rod (29) away from the rotating rod (22) is fixedly connected to the rotating cylinder (26), and a plurality of fixing rods (13) are fixed on the outer wall of the rotating cylinder (26).

4. The automated equipment for low-temperature vacuum microwave sterilization and aseptic filling according to claim 3, characterized in that: The outer wall of the rotating rod (22) is provided with a plurality of transmission rods (25). The transmission rods (25) pass through a plurality of stirring rods (15) and are rotatably connected to the stirring rods (15). The transmission rods (25) and the round rod (29) are connected by a bevel gear (30).

5. The automated equipment for low-temperature vacuum microwave sterilization and aseptic filling according to claim 4, characterized in that: A fixed gear ring (28) is fixed on the left side inside the vacuum chamber (6), and a spur gear (27) is fixed on the left end of the transmission rod (25). The spur gear (27) and the gear ring (28) are meshed and connected. A fixed ring (24) is rotatably connected on the right side inside the vacuum chamber (6), and the right end of the transmission rod (25) is rotatably connected to the left side of the fixed ring (24).

6. The automated equipment for low-temperature vacuum microwave sterilization and aseptic filling according to claim 5, characterized in that: A thermometer (3) is fixed inside the vacuum chamber (6).