Medlar puree sterilization system
By combining a tubular heat exchanger and a jacketed reactor, the problem of uneven sterilization caused by initial temperature differences in the ultra-high temperature sterilization of wolfberry pulp was solved, achieving uniform heating and comprehensive sterilization of wolfberry pulp.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-24
- Publication Date
- 2026-04-03
AI Technical Summary
In the ultra-high temperature instantaneous sterilization method, the initial temperature difference of wolfberry pulp leads to incomplete sterilization in some areas, resulting in uneven sterilization.
The system employs a segmented heat exchanger with tubular heat exchangers. By controlling the mixing of low-temperature and high-temperature steam, combined with a jacketed reactor and heat exchanger, precise preheating is achieved, maintaining the consistency of the wolfberry pulp temperature and ensuring sterilization effectiveness.
It achieves uniform heating and sterilization of goji berry juice, ensuring comprehensiveness and consistency of sterilization and reducing the risk of uneven sterilization caused by temperature differences.
Smart Images
Figure CN224069621U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of raw pulp beverage production technology, specifically a goji berry raw pulp sterilization system. Background Technology
[0002] Undiluted beverages refer to pulpy substances extracted directly from raw materials such as fruits, vegetables, grains, and herbs through physical methods such as pressing and extraction. They are undiluted or only slightly diluted, retaining most of the nutrients and natural flavor of the raw materials. They are rich in nutrients, including vitamins, minerals, dietary fiber, and other nutrients. They are natural and additive-free, generally without artificial colors, flavors, preservatives, etc. They have a rich and mellow taste, but some undiluted beverages may have a sour or astringent taste or a strong flavor.
[0003] The production process of goji berry pulp includes steps such as raw material selection, cleaning, crushing, juicing, filtering, blending, sterilization, and bottling. The sterilization step usually adopts pasteurization or ultra-high temperature instantaneous sterilization. Pasteurization uses a relatively low temperature (generally 62-90℃) to heat the goji berry pulp for a certain period of time to kill pathogenic microorganisms and some spoilage microorganisms, while preserving the nutrients and flavor of the pulp as much as possible. Ultra-high temperature instantaneous sterilization uses specialized ultra-high temperature sterilization equipment to rapidly heat the pulp to the set temperature in a heat exchanger, hold it in the heat for a very short time through an insulated tube, and then rapidly cool it down through a cooler. This method can effectively kill various microorganisms and spores, and has little impact on the nutrients and flavor of the pulp, making it suitable for large-scale industrial production.
[0004] During the ultra-high temperature instantaneous sterilization process of goji berry pulp, the pulp is heated and sterilized in a heat exchanger at a temperature of 130℃-150℃ for several seconds or tens of seconds. Due to differences in the external environment and storage conditions, the initial temperature of the goji berry pulp varies, resulting in some areas of the pulp not being fully heated and sterilized, posing a risk of incomplete sterilization. To address this, this application proposes a temperature-controllable and energy-saving preheating method to reduce the initial temperature differences of the goji berry pulp due to external environment and storage temperature, maintain the sterilization effect of the equipment, ensure uniform flow speed of the pulp inside, and achieve comprehensive sterilization. Utility Model Content
[0005] The purpose of this invention is to provide a sterilization system for wolfberry pulp to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A sterilization system for wolfberry pulp includes a control terminal, a pulp pipeline, a tubular heat exchanger, a steam input pipeline, a steam recovery pipeline, a pulp output pipeline, and a pulp input pipeline. The tubular heat exchanger is connected to the steam input pipeline, the steam recovery pipeline, the pulp output pipeline, and the pulp input pipeline. The heat exchange tubes of the tubular heat exchanger are divided into a sleeve and a feed pipe, with the feed pipe located inside the sleeve. The sleeve is divided into multiple cavities, which are connected to each other via a front-end heat exchange connecting pipe and a rear-end heat exchange connecting pipe. At least two low-temperature steam output ends and high-temperature steam output ends are provided, and their output ends are connected to the steam recovery pipeline. A jacketed reactor is connected between the pulp pipeline and the pulp input pipeline. The steam output from the low-temperature steam output ends and the high-temperature steam output ends is sent into the jacket of the jacketed reactor through pipelines.
[0008] As a further embodiment of this utility model: the casing is divided into heat exchange chamber a, heat exchange chamber b, heat exchange chamber c and heat exchange chamber d. Steam enters heat exchange chamber a and is sent to heat exchange chamber c through the rear heat exchange connecting pipe and then output through the high temperature steam output end. Steam enters heat exchange chamber b and is sent to heat exchange chamber d through the front heat exchange connecting pipe and then output through the low temperature steam output end.
[0009] As a further embodiment of this utility model: a low-temperature regulating pipeline and a high-temperature regulating pipeline are respectively provided on the low-temperature steam output end and the high-temperature steam output end. Both the low-temperature regulating pipeline and the high-temperature regulating pipeline are connected to the mixing tank. The top of the mixing tank is connected to the jacket of the jacketed reactor through a steam preheating pipeline. The steam output end of the jacketed reactor is connected to the steam recovery pipeline through a preheating recovery pipeline.
[0010] As a further improvement of this utility model: valves are respectively installed on the high-temperature regulating pipeline, the low-temperature regulating pipeline and the steam recovery pipeline, and the opening and closing of the valves are controlled by the control terminal.
[0011] As a further improvement of this utility model: an air pump is installed on the steam preheating pipeline to send the steam inside the mixing tank to the jacketed reactor.
[0012] As a further improvement of this utility model: a liquid pump is installed on the raw slurry input pipeline, and the raw slurry in the jacketed reactor is sent into the tubular heat exchanger by the liquid pump.
[0013] As a further embodiment of this utility model: a branch pipe is provided on the raw pulp input pipeline, and a heat exchanger is provided on the branch pipe. The raw pulp is sent into the branch pipe by a liquid pump, heated by the heat exchanger, and then sent into the raw pulp input pipeline.
[0014] As a further embodiment of this utility model: the steam input end of the heat exchanger is connected to the steam preheating pipeline through a steam branch pipe, and the steam output end of the heat exchanger is connected to the steam recovery pipeline through a steam delivery pipeline.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This goji berry pulp sterilization system uses a segmented heat exchanger via a tubular heat exchanger to divide the output temperature into two groups: high and low temperature steam outputs with a temperature difference of no less than ℃. The mixing of the two groups of steam is controlled by a control terminal and a temperature sensor to achieve the purpose of controlling the heat exchange temperature. The steam is then sent to a preheating device, which includes a jacketed reactor and a heat exchanger, for precise preheating. The preheating temperature difference can be controlled within 60℃-70℃, effectively maintaining a consistent preheating temperature of the pulp, thereby ensuring the sterilization effect of the equipment is maintained. The sterilization is comprehensive, and the goji berry pulp temperature is consistent. Therefore, the pulp flows at a uniform speed when passing through the tubular heat exchanger, and the sterilization time of the pulp within the tubular heat exchanger is consistent. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of a sterilization system for wolfberry pulp;
[0018] Figure 2 This is a schematic diagram of a tubular heat exchanger in a wolfberry pulp sterilization system.
[0019] In the diagram: 1. Raw slurry pipeline; 2. Tubular heat exchanger; 3. Steam input pipeline; 4. Steam recovery pipeline; 5. Raw slurry output pipeline; 6. Raw slurry input pipeline; 7. Mixing tank; 8. High-temperature regulating pipeline; 9. Low-temperature regulating pipeline; 10. Air pump; 11. Steam branch pipe; 12. Steam preheating pipeline; 13. Preheating recovery pipeline; 14. Jacketed reactor; 15. Downstream heat exchange connection pipe; 16. Liquid pump; 17. Upstream heat exchange connection pipe; 18. Heat exchanger; 19. Steam transmission pipeline; 20. Low-temperature steam output end; 21. High-temperature steam output end. Detailed Implementation
[0020] Please see Figure 1 and 2In this embodiment of the invention, a wolfberry pulp sterilization system includes a control terminal, a pulp pipeline 1, a tubular heat exchanger 2, a steam input pipeline 3, a steam recovery pipeline 4, a pulp output pipeline 5, and a pulp input pipeline 6. The tubular heat exchanger 2 is connected to the steam input pipeline 3, the steam recovery pipeline 4, the pulp output pipeline 5, and the pulp input pipeline 6, respectively. The heat exchange tubes of the tubular heat exchanger 2 are divided into a sleeve and a feed pipe. The feed pipe is located inside the sleeve, which is divided into multiple cavities. The cavities are connected to each other through a front heat exchange connecting pipe 17 and a rear heat exchange connecting pipe 15. At least two low-temperature steam output ends 20 and high-temperature steam output ends 21 are provided. The output ends of the low-temperature steam output ends 20 and the high-temperature steam output ends 21 are connected to the steam recovery pipeline 4. A jacketed reactor is connected between the pulp pipeline 1 and the pulp input pipeline 6. 14. The steam output from the low-temperature steam output end 20 and the high-temperature steam output end 21 is sent into the jacket of the jacketed reactor 14 through pipelines. The multiple cavities of the tubular heat exchanger 2 are connected through the front heat exchange connecting pipe 17 and the rear heat exchange connecting pipe 15, so that there is an error in the actual steam temperature output from the two pipelines of the low-temperature steam output end 20 and the high-temperature steam output end 21. By adjusting the distribution ratio of the two pipelines of the low-temperature steam output end 20 and the high-temperature steam output end 21, the temperature of the steam in the two pipelines becomes controllable when they are fused. Thus, the steam at this temperature is used for the preheating of the pulp, which can effectively maintain the consistency of the preheating temperature of the pulp, thereby maintaining the sterilization effect of the equipment, ensuring comprehensive sterilization, and ensuring the consistent temperature of the wolfberry pulp. Therefore, the pulp flow velocity is uniform when it passes through the tubular heat exchanger 2, and the sterilization time of the pulp in the tubular heat exchanger 2 is consistent.
[0021] In a preferred embodiment, the casing is divided into heat exchange chambers 2a, 2b, 2c, and 2d. Steam enters heat exchange chamber 2a and is sent to heat exchange chamber 2c via the rear heat exchange connecting pipe 15, and then outputs through the high-temperature steam output end 21. Steam enters heat exchange chamber 2b and is sent to heat exchange chamber 2d via the front heat exchange connecting pipe 17, and then outputs through the low-temperature steam output end 20. The input steam temperatures of heat exchange chambers 2a and 2b are the same, but because the temperature of the raw slurry during the heat exchange stage in heat exchange chamber 2a is the same as the temperature of the raw slurry after heat exchange in heat exchange chamber 2b, their exchange temperature errors are different. The same applies to heat exchange chambers 2c and 2d, resulting in a temperature difference in the final output steam temperature. Typically, the input temperature is 170℃-190℃, and the final output steam temperature is 80℃-110℃. By setting the length of heat exchange chamber 2b, the heat exchange time of heat exchange chamber 2b is extended, thus increasing the temperature difference.
[0022] In a preferred embodiment, a low-temperature regulating pipeline 9 and a high-temperature regulating pipeline 8 are respectively provided on the low-temperature steam output end 20 and the high-temperature steam output end 21. Both the low-temperature regulating pipeline 9 and the high-temperature regulating pipeline 8 are connected to the mixing tank 7. The top of the mixing tank 7 is connected to the jacket of the jacketed reactor 14 via a steam preheating pipeline 12. The steam output end of the jacketed reactor 14 is connected to the steam recovery pipeline 4 via a preheating recovery pipeline 13. Temperature sensors can be installed inside the jacketed reactor 14, the high-temperature regulating pipeline 8, and the low-temperature regulating pipeline 9 to detect the temperature of the goji berry pulp and the steam, thereby... The control unit collects electrical signals from the sensors and controls the temperature regulation. Steam enters the mixing tank 7 in a certain proportion. The mixing tank 7 has two functions: one is to separate the gas and liquid, as the steam will condense when the temperature drops, thus separating the condensate; the other is to act as a buffer, while ensuring that the mixing temperature of the steam is consistent. The steam enters the jacket of the jacketed reactor 14 to preheat the wolfberry pulp inside the jacketed reactor 14. At the same time, the agitator of the jacketed reactor 14 stirs the pulp to ensure that the wolfberry pulp inside is heated evenly, maintaining a temperature of 60℃-70℃ and minimizing temperature differences.
[0023] In a preferred embodiment, valves are respectively installed on the high-temperature regulating pipeline 8, the low-temperature regulating pipeline 9, and the steam recovery pipeline 4. The valves are controlled to open and close by a control terminal. The control terminal collects electrical signals from temperature sensors to control the opening degree of the valves on the high-temperature regulating pipeline 8, the low-temperature regulating pipeline 9, and the steam recovery pipeline 4, thereby controlling the proportions to achieve the purpose of temperature control.
[0024] In a preferred embodiment, a steam pump 10 is installed on the steam preheating pipeline 12 to send the steam inside the mixing tank 7 to the jacketed reactor 14. A liquid pump 16 is installed on the raw slurry input pipeline 6 to send the raw slurry in the jacketed reactor 14 into the tubular heat exchanger 2.
[0025] In a preferred embodiment, a branch pipe is provided on the pulp input pipeline 6, and a heat exchanger 18 is provided on the branch pipe. The pulp is sent into the branch pipe by the liquid pump 16, heated by the heat exchanger 18, and then sent into the pulp input pipeline 6. The jacketed reactor 14 exchanges heat through the jacket, but its heat exchange area is small and its heat exchange efficiency is low. When the production speed is too fast, the heat exchange speed of the jacketed reactor 14 is obviously insufficient. Therefore, the heat exchanger 18 is set up as a backup. When the heat exchange speed of the jacketed reactor 14 does not meet the production requirements, the pulp is switched through the pipeline to be reheated by the heat exchanger 18. The heat exchanger 18 has a large heat exchange area, thereby improving the preheating speed and ensuring the temperature of the pulp entering the tubular heat exchanger 2. A temperature sensor can be installed inside the heat exchanger 18 to detect the output temperature of the wolfberry pulp inside the heat exchanger 18, and thus adjust it through the control terminal.
[0026] In a preferred embodiment, the steam input end of the heat exchanger 18 is connected to the steam preheating pipeline 12 via the steam branch pipe 11, and the steam output end of the heat exchanger 18 is connected to the steam recovery pipeline 4 via the steam delivery pipeline 19. The heat medium of the heat exchanger 18 comes from the mixing tank 7, and the high-temperature steam in the steam input pipeline 3 comes from the steam generator.
[0027] It should be noted that all the above embodiments belong to the same utility model concept, and the descriptions of each embodiment have different focuses. Where the description in a particular embodiment is not detailed, please refer to the description in other embodiments.
[0028] The embodiments described above merely illustrate the implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A wolfberry raw pulp sterilization system, comprising a control end, a raw pulp pipeline (1), a tubular heat exchanger (2), a steam input pipeline (3), a steam recovery pipeline (4), a raw pulp output pipeline (5) and a raw pulp input pipeline (6), the tubular heat exchanger (2) is communicated with the steam input pipeline (3), the steam recovery pipeline (4), the raw pulp output pipeline (5) and the raw pulp input pipeline (6) respectively, characterized in that, The heat exchange tube of the pipe heat exchanger (2) is divided into a jacket tube and a material tube, the material tube is located in the jacket tube, the jacket tube is divided into a plurality of cavities, each cavity is communicated through a front heat exchange connecting tube (17) and a rear heat exchange connecting tube (15), and at least two low-temperature steam output ends (20) and high-temperature steam output ends (21) for outputting steam are arranged, the output ends of the low-temperature steam output ends (20) and the high-temperature steam output ends (21) are communicated with a steam recovery pipeline (4), a jacket reaction kettle (14) is connected between an original slurry pipeline (1) and an original slurry input pipeline (6), and the steam output by the low-temperature steam output ends (20) and the high-temperature steam output ends (21) is sent into the jacket of the jacket reaction kettle (14) through a pipeline. 2. The wolfberry raw pulp sterilization system according to claim 1, characterized in that, The jacket tube is divided into a heat exchange chamber 2a, a heat exchange chamber 2b, a heat exchange chamber 2c and a heat exchange chamber 2d, steam entering the heat exchange chamber 2a is sent to the heat exchange chamber 2c through the rear heat exchange connecting tube (15) and then output through the high-temperature steam output end (21), and steam entering the heat exchange chamber 2b is sent to the heat exchange chamber 2d through the front heat exchange connecting tube (17) and then output through the low-temperature steam output end (20).
3. The wolfberry raw pulp sterilization system of claim 2, wherein, The low-temperature steam output ends (20) and the high-temperature steam output ends (21) are respectively provided with low-temperature adjusting pipelines (9) and high-temperature adjusting pipelines (8), the low-temperature adjusting pipelines (9) and the high-temperature adjusting pipelines (8) are communicated with a mixing tank (7), the top end of the mixing tank (7) is communicated with the jacket of the jacket reaction kettle (14) through a steam preheating pipeline (12), and the steam output end of the jacket reaction kettle (14) is communicated with the steam recovery pipeline (4) through a preheating recovery pipeline (13).
4. The wolfberry raw pulp sterilization system of claim 3, wherein, Valves are arranged on the high-temperature adjusting pipelines (8), the low-temperature adjusting pipelines (9) and the steam recovery pipeline (4), respectively, and the valves control the opening degree and the closure through a control end.
5. The wolfberry raw pulp sterilization system of claim 3, wherein, A gas pump (10) is arranged on the steam preheating pipeline (12), and the steam in the mixing tank (7) is sent to the jacket reaction kettle (14) through the gas pump (10).
6. The wolfberry raw juice sterilization system according to any one of claims 3-5, characterized in that, A liquid pump (16) is arranged on the original slurry input pipeline (6), and the original slurry in the jacket reaction kettle (14) is sent into the pipe heat exchanger (2) through the liquid pump (16).
7. The wolfberry raw pulp sterilization system of claim 6, wherein, A branch pipe is arranged on the original slurry input pipeline (6), and a heat exchanger (18) is arranged on the branch pipe, the original slurry is sent into the branch pipe through the liquid pump (16), heated and warmed through the heat exchanger (18) and then sent into the original slurry input pipeline (6).
8. The wolfberry raw pulp sterilization system of claim 7, wherein, The steam input end of the heat exchanger (18) is communicated with the steam preheating pipeline (12) through a steam branch pipe (11), and the steam output end of the heat exchanger (18) is communicated with the steam recovery pipeline (4) through a steam conveying pipeline (19).