Aseptic tube UHT sterilizer

By designing a sterile tubular ultra-high temperature sterilizer with multi-stage heat exchangers and hot water tanks, the problem of severe heat loss was solved, achieving an 85% heat recovery rate and improving equipment cleanliness.

CN224292239UActive Publication Date: 2026-05-29SHANGHAI HAIKEXIN FLUID EQUIPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI HAIKEXIN FLUID EQUIPMENT CO LTD
Filing Date
2025-04-21
Publication Date
2026-05-29

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Abstract

The utility model discloses aseptic tubular ultra -high temperature sterilization machine, including the pipeline and mixing jar of connection equipment, the mixing jar one end is connected with first air drive direction valve, first air drive direction valve end is connected with two first pneumatic butterfly valve, the mixing jar one end is connected with first diaphragm pump, first diaphragm pump end is connected with first heat exchanger, first heat exchanger one side is equipped with second heat exchanger, third heat exchanger, fourth heat exchanger, fifth heat exchanger, sixth heat exchanger and seventh heat exchanger in proper order, belong to the technical field of sterilization machine. The aseptic tubular ultra -high temperature sterilization machine, through steam into first heat exchanger to the high temperature heating sterilization of material, and the material that passes through high temperature heating sterilization is in proper order through second heat exchanger, third heat exchanger, fourth heat exchanger, fifth heat exchanger, sixth heat exchanger and seventh heat exchanger and carries out sufficient heat exchange, and the cooling water after heat exchange enters hot water jar, and heat recovery rate reaches 85%, and effectively improves heat recovery efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of sterilization machine technology, specifically to a sterile tubular ultra-high temperature sterilization machine. Background Technology

[0002] A sterilizer is a machine that kills microorganisms on products, packaging containers, packaging materials, packaging aids, and packaging components, reducing them to within acceptable limits. In existing technologies, sterilizers use high-temperature steam to heat the materials. However, during use, the heat loss inside the sterilizer is severe, making it difficult to fully recover and utilize the heat, resulting in an unsatisfactory heat recovery rate. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a sterile tubular ultra-high temperature sterilizer, which solves the problem that sterilizers use high-temperature steam to heat materials, but during use, the heat loss inside the sterilizer is severe, making it difficult to fully recover and utilize the heat, resulting in an unsatisfactory heat recovery rate.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a sterile tubular ultra-high temperature sterilizer, comprising a pipeline connecting the equipment and a mixing tank. One end of the mixing tank is connected to a first air-driven directional valve, and the end of the first air-driven directional valve is connected to two first pneumatic butterfly valves. One end of the mixing tank is connected to a first diaphragm pump, and the end of the first diaphragm pump is connected to a first heat exchanger. A second, third, fourth, fifth, sixth, and seventh heat exchanger are sequentially arranged on one side of the first heat exchanger. An eighth heat exchanger is connected to the first heat exchanger. The end of the fifth heat exchanger is connected to a hot water tank. A second air-driven directional valve is provided between the sixth and seventh heat exchangers. A first pneumatic constant pressure valve is provided between the second air-driven directional valve and the sixth heat exchanger. A third air-driven directional valve is provided between the seventh heat exchanger and the mixing tank, and a second pneumatic constant pressure valve is provided between the third air-driven directional valve and the seventh heat exchanger.

[0005] Preferably, the pipeline is equipped with multiple temperature sensors, thermometers and pressure gauges, and both the mixing tank and the first heat exchanger are equipped with balancing cylinders, which can be used to maintain a constant liquid level and ensure continuous material supply.

[0006] Preferably, a second diaphragm pump is provided on one side of the mixing tank, and three second pneumatic butterfly valves are connected to the end of the second diaphragm pump, which can be used to introduce acid, alkali and pure water for cleaning.

[0007] Preferably, the pipeline is equipped with a conductivity meter and an electromagnetic flow meter. The electromagnetic flow meter can be used to measure the flow rate in the pipeline, while the conductivity meter detects the concentration of the cleaning fluid (such as an alkaline or acidic solution) and monitors the residue in the flushing water.

[0008] Preferably, one end of the first heat exchanger is connected to the eighth heat exchanger, and the eighth heat exchanger is connected to the fifth and fourth heat exchangers, so that the first heat exchanger can be used to heat and sterilize the material.

[0009] Preferably, the hot water tank is connected in series with the fifth, fourth, third, and second heat exchangers, and a third pneumatic constant pressure valve is connected to the end of the hot water tank. The third pneumatic constant pressure valve can maintain the pressure at the hot water tank and prevent pressure fluctuations from causing adverse effects.

[0010] Preferably, the eighth heat exchanger is connected to a steam regulating valve at its end, which allows the 4.5 bar steam to be regulated.

[0011] This invention provides a sterile tubular ultra-high temperature sterilizer. Compared with the prior art, it has the following advantages:

[0012] 1. This sterile tubular ultra-high temperature sterilizer introduces 25°C material and pure water into a mixing tank. Steam enters the first heat exchanger to heat and sterilize the material at high temperature. After high-temperature sterilization, the material passes through the second, third, fourth, fifth, sixth, and seventh heat exchangers for sufficient heat exchange. The cooled water after heat exchange enters the hot water tank, achieving a heat recovery rate of 85%, effectively improving heat recovery efficiency.

[0013] 2. This sterile tubular ultra-high temperature sterilizer effectively removes organic, inorganic, and microbial contaminants from the equipment surface and pipes by using a hot water tank and acid / alkali cleaning solution to clean the heat exchanger. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0015] In the diagram: 1. Pipeline; 2. Eighth heat exchanger; 3. Hot water tank; 4. Mixing tank; 5. First air-driven directional valve; 6. First pneumatic butterfly valve; 7. First diaphragm pump; 8. Electromagnetic flowmeter; 9. First heat exchanger; 10. Second heat exchanger; 11. Third heat exchanger; 12. Fourth heat exchanger; 13. Fifth heat exchanger; 14. Sixth heat exchanger; 15. Second air-driven directional valve; 16. Seventh heat exchanger; 17. Third air-driven directional valve; 18. First pneumatic constant pressure valve; 19. Second pneumatic constant pressure valve; 20. Second diaphragm pump; 21. Second pneumatic butterfly valve. Detailed Implementation

[0016] 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.

[0017] Please see Figure 1This utility model provides a technical solution: a sterile tubular ultra-high temperature sterilizer, which features automatic control of pasteurization temperature, automatic diversion, and continuous recording with complete traceability. It adopts a modular system, is pre-assembled and factory tested, has a flexible product range, can be flexibly installed in limited spaces, facilitates inspection of product and media surfaces, has low maintenance costs, meets ASME, PMO, 3A and other design standards, and can withstand pressures up to 60 bar. It includes a pipeline 1 connecting the equipment and a mixing tank 4. Multiple temperature sensors, thermometers, and pressure gauges are installed on the pipeline 1. A balancing cylinder is installed on both the mixing tank 4 and the first heat exchanger 9, which can maintain a constant liquid level to ensure continuous material supply. A second heat exchanger 9 is located on one side of the mixing tank 4. Two diaphragm pumps 20 are connected to three second pneumatic butterfly valves 21 at their ends, allowing the flow of acid, alkali, and pure water for cleaning. A conductivity meter and an electromagnetic flow meter 8 are installed on pipeline 1, enabling the electromagnetic flow meter 8 to measure the flow rate in pipeline 1. The conductivity meter detects the concentration of the cleaning solution (such as an alkaline or acidic solution) and monitors the residue in the rinsing water. A mixing tank 4 is connected to a first air-driven directional valve 5 at one end, with two first pneumatic butterfly valves 6 connected to its end. A first diaphragm pump 7 is connected to one end of the mixing tank 4, and a first heat exchanger 9 is connected to its end. A second heat exchanger 10 and a third heat exchanger 10 are sequentially arranged on one side of the first heat exchanger 9. Heat exchangers 11, 12, 13, 14, and 16 are connected to a homogenizer. A homogenization port is provided between the second heat exchanger 10 and the third heat exchanger 11 to facilitate material feeding into the homogenizer for processing. An eighth heat exchanger 2 is connected to the first heat exchanger 9, and a steam regulating valve is connected to the end of the eighth heat exchanger 2, allowing for the regulation of 4.5 bar steam. One end of the first heat exchanger 9 is connected to the eighth heat exchanger 2, which in turn is connected to the fifth heat exchanger 13 and the fourth heat exchanger 12, enabling the first heat exchanger 9 to heat and sterilize the material. A hot water tank 3 is connected to the end of the fifth heat exchanger 13, which is connected to the fifth heat exchanger 13 and the fourth heat exchanger 12. The third heat exchanger 11 and the second heat exchanger 10 are connected in series, and the end of the hot water tank 3 is connected to a third pneumatic constant pressure valve. The third pneumatic constant pressure valve can maintain the pressure at the hot water tank 3 and prevent pressure fluctuations from causing adverse effects. A second air-driven directional valve 15 is provided between the sixth heat exchanger 14 and the seventh heat exchanger 16. A first pneumatic constant pressure valve 18 is provided between the second air-driven directional valve 15 and the sixth heat exchanger 14. A third air-driven directional valve 17 is provided between the seventh heat exchanger 16 and the mixing tank 4. A second pneumatic constant pressure valve 19 is provided between the third air-driven directional valve 17 and the seventh heat exchanger 16. The second pneumatic constant pressure valve 19 can ensure the pressure at the seventh heat exchanger 16 is stable and prevent pressure fluctuations from causing adverse effects.

[0018] During operation, materials at 25°C and pure water enter the mixing tank 4. Steam enters the first heat exchanger 9 to heat and sterilize the materials at high temperature. After being heated and sterilized at high temperature, the materials pass through the second heat exchanger 10, the third heat exchanger 11, the fourth heat exchanger 12, the fifth heat exchanger 13, the sixth heat exchanger 14, and the seventh heat exchanger 16 in sequence for full heat exchange. The cooling water after heat exchange enters the hot water tank 3. The hot water tank 3 and the acid and alkali cleaning solution are used to clean the heat exchangers. The heat recovery rate reaches 85%, which effectively improves the heat recovery efficiency.

[0019] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A sterile tubular ultra-high temperature sterilizer, characterized in that: The equipment includes a pipeline (1) connecting the equipment and a mixing tank (4). One end of the mixing tank (4) is connected to a first air-driven directional valve (5), and the end of the first air-driven directional valve (5) is connected to two first pneumatic butterfly valves (6). One end of the mixing tank (4) is connected to a first diaphragm pump (7), and the end of the first diaphragm pump (7) is connected to a first heat exchanger (9). A second heat exchanger (10), a third heat exchanger (11), a fourth heat exchanger (12), a fifth heat exchanger (13), a sixth heat exchanger (14), and a seventh heat exchanger (16) are sequentially arranged on one side of the first heat exchanger (9). The first heat exchanger (9) is connected to the eighth heat exchanger (2), the fifth heat exchanger (13) is connected to the end of the hot water tank (3), the sixth heat exchanger (14) and the seventh heat exchanger (16) are provided with a second air-driven directional valve (15), the second air-driven directional valve (15) and the sixth heat exchanger (14) are provided with a first pneumatic constant pressure valve (18), the seventh heat exchanger (16) and the mixing tank (4) are provided with a third air-driven directional valve (17), and the third air-driven directional valve (17) and the seventh heat exchanger (16) are provided with a second pneumatic constant pressure valve (19).

2. The aseptic tubular ultra-high temperature sterilizer according to claim 1, characterized in that: Multiple temperature sensors, thermometers and pressure gauges are installed on the pipeline (1), and balance cylinders are installed on the mixing tank (4) and the first heat exchanger (9).

3. The aseptic tubular ultra-high temperature sterilizer according to claim 1, characterized in that: The mixing tank (4) is equipped with a second diaphragm pump (20) on one side, and the end of the second diaphragm pump (20) is connected to three second pneumatic butterfly valves (21).

4. The aseptic tubular ultra-high temperature sterilizer according to claim 1, characterized in that: A conductivity meter and an electromagnetic flow meter (8) are installed on the pipeline (1).

5. The aseptic tubular ultra-high temperature sterilizer according to claim 1, characterized in that: One end of the first heat exchanger (9) is connected to the eighth heat exchanger (2), which is connected to the fifth heat exchanger (13) and the fourth heat exchanger (12).

6. The aseptic tubular ultra-high temperature sterilizer according to claim 1, characterized in that: The hot water tank (3) is connected in series with the fifth heat exchanger (13), the fourth heat exchanger (12), the third heat exchanger (11) and the second heat exchanger (10), and a third pneumatic constant pressure valve is connected to the end of the hot water tank (3).

7. The aseptic tubular ultra-high temperature sterilizer according to claim 1, characterized in that: The eighth heat exchanger (2) is connected to a steam regulating valve at its end.