Low-temperature backflow prevention device for UHT high-temperature sterilization

By designing a low-temperature reflux protection device, the problems of insufficient sterilization temperature and easy damage to the stirring blades in UHT sterilizers are solved. This enables material reflux and temporary storage, as well as convenient replacement of the stirring blades, thereby improving sterilization effect and mixing efficiency.

CN223831467UActive Publication Date: 2026-01-27GUANGZHOU SHUNKANG BIOTECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423217587.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2026-01-27
Estimated Expiration
2034-12-25

AI Technical Summary

Technical Problem

Existing UHT sterilization equipment has the problem that the sterilization temperature cannot be reached in the early stage of the sterilization process, resulting in unsatisfactory sterilization effect, and the stirring blades are easily damaged, affecting the material mixing efficiency.

Method used

A low-temperature backflow prevention device was designed. By using a blocking block and a manual valve in combination, the pump pressurizes the material and causes it to flow back to the temporary storage tank, thus avoiding waste. At the same time, the motor and the stirring blade are combined, and the stirring blade can be easily replaced using a locking block and slot structure to prevent damage.

Benefits of technology

It enables material recirculation and temporary storage when the sterilization temperature is not up to standard, avoiding waste, and improves mixing efficiency by easily replacing the stirring blades.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sterilization machines, and discloses a low-temperature backflow prevention device for UHT high-temperature sterilization, which comprises an outer frame, a material mixing frame is arranged above the outer frame, and a motor is fixedly mounted on the inclined side surface of the material mixing frame. Through cooperative use of a stop block and a manual valve and cooperative use of the stop block and a pump body, when the sterilization temperature cannot reach the sterilization temperature in the early stage and the sterilization effect is not ideal, the pump body can be controlled to work through a controller, and the interior of the sterilization tank is pressurized through the pump body; the material flow in the sterilization tank flows into the backflow pipe through the second communicating pipe again, then the manual valve is manually rotated, the stop block is rotated to be opened and closed, and then the material flow can smoothly flow into the first communicating pipe through the backflow pipe, flow into the pump from the first communicating pipe and flow back into the temporary storage tank again, so that the material flow is temporarily stored; and the situation that part of materials cannot reach the sterilization expectation and can only serve as waste materials to be treated, and waste is caused is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of sterilization machine technology, specifically to a low-temperature reflux prevention device for UHT high-temperature sterilization. Background Technology

[0002] UHT sterilizers are used to treat materials at ultra-high temperatures for instantaneous processing. The ultra-high temperature instantaneous sterilization temperature is 135-140℃, and the temperature is held for 4 seconds to achieve commercial sterility requirements. It is a sterilization process for fresh milk, grain beverages, and other beverages. It does not require storage at room temperature and the shelf life can reach 1-6 months.

[0003] Existing UHT sterilization machines have several drawbacks. Firstly, the sterilization temperature doesn't reach the target level initially after activation, resulting in inadequate sterilization and some materials failing to achieve the desired sterilization, rendering them wasteful. Secondly, existing UHT sterilization machines lack the ability to agitate materials and replace the agitator blades. This leads to the agitator blades being easily damaged after prolonged agitation, thus affecting the mixing efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention provides a low-temperature reflux prevention device for UHT high-temperature sterilization, which has the advantages of avoiding waste and allowing for quick disassembly of the stirring blades, thus solving the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a low-temperature reflux prevention device for UHT high-temperature sterilization, comprising an outer frame, a mixing frame disposed above the outer frame, a motor fixedly mounted on the inclined side of the mixing frame, a sliding groove formed on the power output shaft of the motor, a slot formed on the inner wall of the sliding groove, a slider slidably connected to the inner wall of the sliding groove, a stirring blade fixedly mounted on the top of the slider, sliding openings formed on both sides of the slider, a spring disposed on the inner wall of the sliding opening, a sliding plate fixedly mounted on the extension end of the spring, and the sliding plate... A locking block is fixedly installed on the outside. A connecting pipe is fixedly installed at the bottom of the mixing frame. A pump is fixedly installed at the bottom of the connecting pipe. A connecting pipe one is fixedly installed on the outer edge of the pump. A solenoid valve is fixedly installed at the end of the connecting pipe one away from the pump. A connecting pipe two is fixedly installed at the bottom end of the solenoid valve. A return pipe is fixedly installed on the outer edge of the connecting pipe one and the connecting pipe two. A manual valve is rotatably connected to the outer edge of the return pipe. A temporary storage tank and a sterilization tank are fixedly installed at the bottom of the connecting pipe two. A pump body is installed inside the sterilization tank.

[0006] As a preferred technical solution of this utility model: the slide plate is slidably connected to the inner wall of the slide opening, the diameters of the slide plate and the locking block are matched, and the slide plate and the locking block are engaged.

[0007] As a preferred technical solution of this utility model: the inner wall of the return pipe is rotatably connected to a blocking block, and the outer edge of the blocking block is fixedly installed with a manual valve.

[0008] As a preferred technical solution of this utility model: a rotating door is rotatably connected to the outer side of the outer frame, and a handle and a temperature control box are fixedly installed on the outer side of the rotating door.

[0009] As a preferred technical solution of this utility model: the bottom of the outer frame is fixedly installed with support legs, and the number of support legs is four.

[0010] As a preferred technical solution of this utility model: a controller is fixedly installed on the outer side of the outer frame, and the motor, pump, solenoid valve, pump body and temperature control box are all electrically connected to the controller.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This low-temperature reflux prevention device for UHT high-temperature sterilization, through the combined use of a blocking block and a manual valve, and the combined use of the blocking block and the pump body, allows the pump body to operate when the sterilization temperature is not reached in the early stages and the sterilization effect is not ideal. The pump body pressurizes the inside of the sterilization tank, causing the material inside the sterilization tank to flow back into the reflux pipe through the connecting pipe 2. Then, the manual valve is manually turned to open and close the blocking block, allowing the material to flow smoothly into the connecting pipe 1 through the reflux pipe, and from the connecting pipe 1 into the pump, and then back into the storage tank. This temporarily stores the material and prevents some materials from failing to achieve the expected sterilization and having to be treated as waste, thus avoiding waste.

[0013] 2. This anti-low-temperature reflux device for UHT high-temperature sterilization works by using a motor and a stirring blade in conjunction with a controller. The motor's output shaft rotates, driving the stirring blade to mix the materials. Furthermore, the design of the locking blocks and slots allows for easy replacement of the stirring blade. Simply press the two sliding plates inward, causing them to compress and deform the two springs, allowing the plates to slide inward. This separates the locking blocks from the slots, and by pulling the stirring blade upward, it can be removed for repair or replacement. This prevents damage to the stirring blade from affecting mixing efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2This is a schematic diagram of the structure of this utility model from below;

[0016] Figure 3 This is a schematic diagram of the internal structure of the outer frame of this utility model;

[0017] Figure 4 This is a schematic diagram of the stirring blade structure of this utility model;

[0018] Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure at point A;

[0019] Figure 6 This is a cross-sectional structural diagram of the present invention.

[0020] In the diagram: 1. Outer frame; 2. Support leg; 3. Mixing frame; 4. Motor; 5. Slide chute; 6. Slot; 7. Slider; 8. Mixing blade; 9. Slide port; 10. Spring; 11. Slide plate; 12. Locking block; 13. Connecting pipe; 14. Pump; 15. Connecting pipe one; 16. Return pipe; 17. Manual valve; 18. Solenoid valve; 19. Connecting pipe two; 20. Temporary storage tank; 21. Sterilization tank; 22. Handle; 23. Pump body; 24. Blocking block; 25. Controller; 26. Rotating door; 27. Temperature control box. Detailed Implementation

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

[0022] Please see Figures 1-6A low-temperature reflux prevention device for UHT high-temperature sterilization includes an outer frame 1, a mixing frame 3 disposed above the outer frame 1, a motor 4 fixedly mounted on the inclined side of the mixing frame 3, a slide groove 5 formed on the power output shaft of the motor 4, a slot 6 formed on the inner wall of the slide groove 5, a slider 7 slidably connected to the inner wall of the slide groove 5, a stirring blade 8 fixedly mounted on the top of the slider 7, slide openings 9 formed on both sides of the slider 7, a spring 10 disposed on the inner wall of the slide opening 9, a sliding plate 11 fixedly mounted on the extended end of the spring 10, and a locking block 12 fixedly mounted on the outer side of the sliding plate 11. The mixing frame 3... A connecting pipe 13 is fixedly installed at the bottom, a pump 14 is fixedly installed at the bottom of the connecting pipe 13, a connecting pipe 15 is fixedly installed at the outer edge of the pump 14, a solenoid valve 18 is fixedly installed at the end of the connecting pipe 15 away from the pump 14, a connecting pipe 29 is fixedly installed at the bottom end of the solenoid valve 18, a return pipe 16 is fixedly installed at the outer edge of the connecting pipe 15 and the connecting pipe 29, a manual valve 17 is rotatably connected to the outer edge of the return pipe 16, a temporary storage tank 20 and a sterilization tank 21 are fixedly installed at the bottom of the connecting pipe 29, and a pump body 23 is installed inside the sterilization tank 21.

[0023] In the above structure, the motor 4 and the stirring blade 8 work together, and the controller 25 controls the motor 4 to operate. The rotation of the power output shaft of the motor 4 drives the stirring blade 8 to rotate, thereby achieving the purpose of mixing materials. Secondly, with the setting of the locking block 12 and the locking groove 6, when the stirring blade 8 needs to be replaced, simply press the two sliding plates 11 inward, so that the two sliding plates 11 simultaneously compress and deform the two springs 10, thereby causing the sliding plates 11 to slide inward. At this time, the locking block 12 separates from the locking groove 6, and the stirring blade 8 is pulled upward, so that the stirring blade 8 can be removed for repair or replacement, thus avoiding the situation where the mixing efficiency is affected by the damage to the stirring blade 8.

[0024] In a preferred embodiment: the slide plate 11 is slidably connected to the inner wall of the slide opening 9, the diameters of the slide plate 11 and the locking block 12 are matched, and the slide plate 11 and the locking block 12 are engaged.

[0025] In the above structure, the stirring blade 8 can be limited by the interlocking between the sliding plate 11 and the locking block 12.

[0026] In a preferred embodiment, a blocking block 24 is rotatably connected to the inner wall of the return pipe 16, and the outer edge of the blocking block 24 is fixedly installed with the manual valve 17.

[0027] In the above structure, the blocking block 24 is fixedly installed with the manual valve 17, and the opening and closing of the blocking block 24 can be achieved by rotating the manual valve 17.

[0028] In a preferred embodiment, a rotating door 26 is rotatably connected to the outer side of the outer frame 1, and a handle 22 and a temperature control box 27 are fixedly installed on the outer side of the rotating door 26.

[0029] In the above structure, the internal temperature of the outer frame 1 can be controlled by setting the temperature control box 27.

[0030] In a preferred embodiment, a support leg 2 is fixedly installed at the bottom of the outer frame 1, and the number of support legs 2 is four.

[0031] In the above structure, the stability of the device is improved by setting the support leg 2.

[0032] In a preferred embodiment: a controller 25, a motor 4, a pump 14, a solenoid valve 18, a pump body 23, and a temperature control box 27 are all electrically connected to the controller 25 and fixedly mounted on the outer side of the outer frame 1.

[0033] In the above structure, the controller 25 can control the motor 4, pump 14, solenoid valve 18, pump body 23, and temperature control box 27 to start or stop their operation. Furthermore, by utilizing the combined use of the blocking block 24 and pump body 23, when the sterilization temperature is insufficient in the early stages and the sterilization effect is unsatisfactory, the controller 25 can control the pump body 23 to operate. The pump body 23 pressurizes the inside of the sterilization tank 21, causing the material inside the sterilization tank 21 to flow back through the connecting pipe 2 19 to the return pipe 16. Then, the manual valve 17 is manually turned, causing the blocking block 24 to rotate and open, allowing the material to flow smoothly through the return pipe 16 into the connecting pipe 1 15, from the connecting pipe 15 into the pump 14, and then back into the temporary storage tank 20. This temporarily stores the material, preventing some materials from failing to achieve the expected sterilization and being treated as waste, thus avoiding waste.

[0034] Working Principle: When this device is needed, the motor 4 and the stirring blade 8 work together. The controller 25 controls the motor 4 to operate, and the rotation of the motor 4's power output shaft drives the stirring blade 8 to rotate, thus achieving the purpose of mixing materials. Secondly, using the locking block 12 and the locking slot 6, when the stirring blade 8 needs to be replaced, simply press the two sliding plates 11 inwards. This causes the two sliding plates 11 to simultaneously compress and deform the two springs 10, causing the sliding plates 11 to move inwards. At this time, the locking block 12 separates from the locking slot 6, and the stirring blade 8 can be pulled upwards to remove it for repair or replacement, thus avoiding damage to the stirring blade 8 and affecting mixing efficiency. Furthermore, the controller 25 can control the operation of the motor 4 and the pump. The controller 25 controls the operation of the pump body 23 and the temperature control box 27, including the solenoid valve 18, the pump body 23, and the temperature control box 27. The pump body 23 works in conjunction with the blocking block 24. When the sterilization temperature is not reached in the early stages and the sterilization effect is unsatisfactory, the controller 25 controls the pump body 23 to operate. The pump body 23 pressurizes the inside of the sterilization tank 21, causing the material inside the sterilization tank 21 to flow back through the connecting pipe 29 to the return pipe 16. Then, the manual valve 17 is manually turned, causing the blocking block 24 to open and close, allowing the material to flow smoothly through the return pipe 16 into the connecting pipe 15, and from the connecting pipe 15 into the pump 14, and then back into the temporary storage tank 20. This temporarily stores the material, preventing some materials from failing to achieve the expected sterilization and being treated as waste, thus avoiding waste.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for preventing low-temperature reflux in UHT high-temperature sterilization, comprising an outer frame (1), characterized in that: A mixing frame (3) is provided above the outer frame (1). A motor (4) is fixedly installed on the oblique side of the mixing frame (3). A slide groove (5) is provided on the power output shaft of the motor (4). A slot (6) is provided on the inner wall of the slide groove (5). A slider (7) is slidably connected to the inner wall of the slide groove (5). A stirring blade (8) is fixedly installed on the top of the slider (7). Slide openings (9) are provided on both sides of the slider (7). A spring (10) is provided on the inner wall of the slide opening (9). A sliding plate (11) is fixedly installed on the extension end of the spring (10). A locking block (12) is fixedly installed on the outer side of the sliding plate (11). A connecting rod is fixedly installed at the bottom of the mixing frame (3). The connecting pipe (13) has a pump (14) fixedly installed at the bottom. A connecting pipe (15) is fixedly installed on the outer edge of the pump (14). A solenoid valve (18) is fixedly installed at the end of the connecting pipe (15) away from the pump (14). A connecting pipe (29) is fixedly installed at the bottom of the solenoid valve (18). A return pipe (16) is fixedly installed on the outer edge of the connecting pipe (15) and the connecting pipe (29). A manual valve (17) is rotatably connected to the outer edge of the return pipe (16). A temporary storage tank (20) and a sterilization tank (21) are fixedly installed at the bottom of the connecting pipe (29). A pump body (23) is installed inside the sterilization tank (21).

2. The anti-low temperature reflux device for UHT high-temperature sterilization according to claim 1, characterized in that: The slide plate (11) is slidably connected to the inner wall of the slide opening (9). The diameters of the slide plate (11) and the locking block (12) are matched, and the slide plate (11) and the locking block (12) are engaged.

3. The anti-low temperature reflux device for UHT high-temperature sterilization according to claim 1, characterized in that: The inner wall of the return pipe (16) is rotatably connected to a blocking block (24), and the outer edge of the blocking block (24) is fixedly installed with the manual valve (17).

4. The anti-low temperature reflux device for UHT high-temperature sterilization according to claim 1, characterized in that: A rotating door (26) is rotatably connected to the outer side of the outer frame (1), and a handle (22) and a temperature control box (27) are fixedly installed on the outer side of the rotating door (26).

5. A low-temperature reflux prevention device for UHT high-temperature sterilization according to claim 1, characterized in that: The bottom of the outer frame (1) is fixedly equipped with support legs (2), and the number of support legs (2) is four.

6. A low-temperature reflux prevention device for UHT high-temperature sterilization according to claim 4, characterized in that: A controller (25) is fixedly installed on the outside of the outer frame (1). The motor (4), pump (14), solenoid valve (18), pump body (23), and temperature control box (27) are all electrically connected to the controller (25).