Ultrahigh-pressure jet flow combined thermal sterilization device
The modularly designed ultra-high pressure jet combined heat sterilization device solves the food damage problem caused by traditional heat sterilization, achieves low-temperature rapid sterilization and retention of active ingredients, and is suitable for a variety of sterilization conditions.
Patent Information
- Application Number
- CN202423029396.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-09
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-12-09
AI Technical Summary
Traditional heat sterilization techniques lead to the loss of food nutrients and the deterioration of flavor, and ultra-high pressure jet technology has not yet been industrialized.
The modularly designed ultra-high pressure jet combined thermal sterilization device includes a preheating module, an ultra-high pressure jet module, a steam direct injection module, a heat preservation module, a flash evaporation module, and a cooling module. It achieves non-thermal sterilization through ultra-high pressure jet and steam direct injection, and meets various sterilization needs under different operating conditions.
It achieves rapid sterilization at low temperatures, reduces loss of active ingredients and flavor changes, avoids food damage caused by heat conduction, and is suitable for various sterilization conditions.
Smart Images
Figure CN223463582U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to food sterilization equipment technical field, concretely relates to a kind of ultrahigh pressure jet combination heat sterilization device. BACKGROUND
[0002] In the food processing and storage process, sterilization is the key link to ensure product safety and prolong shelf life. Traditionally, sterilization processes are based on heat treatment inactivation principle. Heat treatment is mainly to kill microorganisms and inactivate enzymes. The effectiveness of heat treatment and its impact on product quality are mainly related to the combination of temperature-time, the heating method used and the pretreatment conditions of the material. Heat sterilization is the most widely used sterilization method in the food industry, and the essence of traditional heat sterilization technology is to provide heat energy outside the food by burning fuel or resistance heating, and to transfer heat energy to the inside of the food through conduction and convection, etc. to achieve the purpose of sterilization and enzyme passivation. Currently, there are four main heat sterilization processes: pre-heat sterilization, pasteurization, ultra-high temperature instantaneous sterilization and holding sterilization. Now the whole world has formed a relatively unified production mode, mainly pasteurization and Ultra-hightemperature instantaneous sterilization (UHT) sterilization, two heat processing forms.
[0003] However, traditional heat sterilization technology relies on indirect or direct heat conduction for heating, which is limited by the efficiency of heat conduction. The material will be exposed to additional heat, resulting in loss of food nutrients, deterioration of flavor and taste. For example, the active protein components in milk, including alpha-lactalbumin, beta-lactoglobulin and lactoferrin, are the essence of milk, which plays an important role in resisting the invasion of pathogenic bacteria, activating immune response in the body and maintaining body health. They are collectively referred to as "natural active nutrients" of milk. However, during the heat treatment sterilization process, these active components will be damaged to varying degrees. Therefore, the sterilization process of milk is constantly improving to meet the shelf life requirements while reducing the damage to active components. However, due to the limitations of traditional heat transfer methods, it is difficult to achieve both sterilization effect and active component preservation. At the same time, due to the presence of heat transfer surfaces, thermal damage and slagging will occur, resulting in the production of paste tube phenomenon, which requires the production line to be shut down for cleaning at regular intervals, resulting in a large amount of material loss.
[0004] Therefore, it is necessary to develop a new generation of non-thermal sterilization technology to reduce the intensity of heat sterilization while maintaining food quality, which is a problem that needs to be solved in the current industry. Among them, ultrahigh pressure jet technology as a new non-thermal sterilization technology, its cavitation effect can produce jet breakage effect on microorganisms. However, ultrahigh pressure jet technology has been at the laboratory research stage, and there is still a certain distance from real industrial application. UTILITY MODEL CONTENT
[0005] In view of the problems in the prior art, the utility model aims at providing a superhigh pressure jet combined heat sterilization device.
[0006] To solve the above technical problems, the utility model provides a technical scheme which is:
[0007] A superhigh pressure jet combined heat sterilization device, which sequentially comprises a preheating module, a superhigh pressure jet module, a steam direct injection module, a heat preservation module, a flash evaporation module and a cooling module;
[0008] The preheating module is used for heating the material to a preheating temperature to obtain preheated material.
[0009] The superhigh pressure jet module is used for high-speed jetting the preheated material to increase the temperature of the preheated material and obtain heated material.
[0010] The steam direct injection module comprises a steam direct injection mixer and is used for heating the heated material to a sterilization temperature to obtain sterilization temperature material; different heating temperatures correspond to steam direct injection mixers of different structures.
[0011] The heat preservation module is used for heat preserving the sterilization temperature material to obtain heat preserved material.
[0012] The flash evaporation module is used for cooling and reducing the temperature of the heat preserved material and removing the moisture added by the steam direct injection module to obtain flash evaporated material.
[0013] The cooling module is used for cooling and reducing the temperature of the flash evaporated material to room temperature to enter the next process.
[0014] The superhigh pressure jet combined heat sterilization device is applicable to pasteurization, UHT sterilization and ultra-high temperature and ultra-instant sterilization.
[0015] Preferably, the preheating temperature of the preheating module is 10-40 DEG C.
[0016] Preferably, the heating temperature of the superhigh pressure jet module is 62-95 DEG C.
[0017] Preferably, the sterilization temperature of the steam direct injection module is 135-157 DEG C.
[0018] Preferably, the heat preservation time of the heat preservation module is 3-20 s.
[0019] Preferably, the cooling and reducing temperature of the flash evaporation module is 55-65 DEG C, and the heat preserved material stays in the pipeline between the heat preservation module and the flash evaporation module for no more than 0.2 s.
[0020] Preferably, under the pasteurization condition, the material sequentially passes through the ultra-high pressure jet module, the heat preservation module and the cooling module;
[0021] The material directly enters the ultra-high pressure jet module for jet heating to 62-85℃ to produce heated material;
[0022] The heated material directly enters the heat preservation module for heat preservation for 10-20s to produce heat preserved material;
[0023] The heat preserved material directly enters the cooling module for cooling to room temperature to enter the next process.
[0024] Preferably, under the UHT sterilization condition, the material sequentially enters the preheating module, the ultra-high pressure jet module, the steam direct injection module, the heat preservation module, the flash evaporation module and the cooling module;
[0025] The material enters the preheating module and is heated to a preheating temperature of 10-20℃ to produce preheated material;
[0026] The preheated material enters the ultra-high pressure jet module for high-speed jetting to heat the preheated material to 62-85℃ to produce heated material;
[0027] The heated material enters the steam direct injection module and is heated to a sterilization temperature of 135-145℃ to produce sterilization temperature material;
[0028] The sterilization temperature material enters the heat preservation module for heat preservation for 3-10s to produce heat preserved material;
[0029] The heat preserved material enters the flash evaporation module for cooling to 55-65℃ and removing the water added by the steam direct injection module to produce flash evaporated material;
[0030] The flash evaporated material enters the cooling module and is cooled to room temperature to enter the next process.
[0031] Preferably, under the ultra-high temperature ultra-instant sterilization condition, the material sequentially enters the preheating module, the ultra-high pressure jet module, the steam direct injection module, the flash evaporation module and the cooling module;
[0032] The material enters the preheating module and is heated to a preheating temperature of 30-40℃ to produce preheated material;
[0033] The preheated material enters the ultra-high pressure jet module for high-speed jetting to heat the preheated material to 85-95℃ to produce heated material;
[0034] The heated material enters the steam direct injection module and is heated to a sterilization temperature of 152-157℃ to produce sterilization temperature material;
[0035] The heat preservation material enters the flash module to be cooled to 55-65 DEG C and remove the moisture added by the steam direct injection module, and the flash material is prepared;
[0036] The flash material enters the cooling module to be cooled to room temperature and enters the next process.
[0037] The beneficial effect of the utility model is:
[0038] The utility model adopts the principle of ultrahigh pressure jet, first ultrahigh pressure jet can bring instantaneous 40-60 DEG C temperature rise, it is a kind of pure mechanical energy conversion internal energy heating mode, reaches predetermined sterilization temperature in extremely short time, to reduce the loss of active ingredient and flavor of product in heating process;Ultrahigh pressure jet is simultaneously used to produce extremely strong cavitation effect, jet break wall effect is generated to microorganism, has non-thermal sterilization effect, and it has remarkable effect to reduce the intensity of thermal sterilization, keep the nutrition, flavor and taste of raw material. BRIEF DESCRIPTION OF DRAWINGS
[0039] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model.In the drawings:
[0040] Figure 1 It is whole device and technological process schematic diagram of the utility model
[0041] Figure 2 It is pasteurization working condition schematic diagram
[0042] Figure 3 It is UHT sterilization working condition schematic diagram
[0043] Figure 4 It is ultrahigh temperature ultrastatic sterilization working condition schematic diagram DETAILED DESCRIPTION
[0044] The preferred examples of the utility model are explained below in conjunction with the drawings, and it needs to be understood that the following embodiments are given only for the purpose of explanation, and are not used to limit the scope of the utility model.The person skilled in the art can make various modifications and replacements to the utility model without departing from the purpose and spirit of the utility model.
[0045] The utility model aims at providing a kind of ultrahigh pressure jet combination heat sterilization device and heat sterilization method thereof, the device is modular design, and it includes preheating module, ultrahigh pressure jet module, steam direct injection module, heat preservation module, flash module and cooling module in turn, can realize including pasteurization, UHT sterilization and ultrahigh temperature instantaneous sterilization and so on multiple different working conditions.
[0046] 2) First, the material is heated to a preheating temperature by the preheating module, 10-40℃, without passing through the preheating module under the pasteurization working condition. Then the material enters the ultra-high pressure jet module for high-speed jet, in the process of high-speed jet, the temperature of the material is increased to 62-95℃, and most of the microorganisms are killed. Next, the material enters the steam direct injection module, and is heated to the sterilization temperature by the steam direct injection mixer. After reaching the sterilization temperature, the material enters the heat preservation module for heat preservation. After heat preservation, the material enters the flash module for cooling and cooling, and removes the moisture added by the steam direct injection module. Finally, after the material is cooled to room temperature in the cooling module, it enters the subsequent process. The advantage of modular design is that multiple different sterilization conditions can be achieved by one set of device: 1) pasteurization working condition; 2) UHT sterilization working condition; 3) ultra-high temperature and ultra-instant sterilization working condition.
[0047] Example 1: pasteurization working condition
[0048] Under the pasteurization working condition, the material does not pass through the preheating module, the steam direct injection module and the flash module. The material directly enters the ultra-high pressure jet module for jet heating. According to the different sterilization intensity, the temperature can be increased to 62-85℃ by adjusting the jet pressure, the jet pressure is 200-280MPa, preferably the jet pressure is 250MPa, and the temperature reaches 69℃. Then directly enter the heat preservation module for 10-20 seconds, and finally enter the cooling module for cooling to room temperature.
[0049] Under different jet pressures, the outlet temperature of the milk material and the microorganism killing condition are shown in Table 1. It can be seen that as the jet pressure increases, the sterilization effect is continuously enhanced. When the jet pressure reaches 230MPa, the outlet temperature of the material is only 62℃, and the killing effect of coliform group and total bacterial count is equivalent to that of 72℃ / 15s pasteurization working condition. When the jet pressure reaches 250MPa, the outlet temperature of the material is only 69℃, and the killing effect of coliform group and total bacterial count is equivalent to that of 85℃ / 15s pasteurization working condition. Therefore, by the way of the utility model, the temperature of pasteurization can be significantly reduced.
[0050] Table 1
[0051]
[0052] Because the temperature of jet processing is relatively low, the inactivation of active substances caused by heating is greatly reduced, and the milk treated by 250MPa high pressure jet has obvious advantages in active substance retention compared with pasteurization. The detection results of active substances are shown in Table 2:
[0053] Table 2
[0054]
[0055] Example 2: UHT sterilization process
[0056] In the UHT sterilization process, first, the material is heated to a preheating temperature of 10-20℃ by the preheating module, then the material enters the high-pressure jet module for high-speed jetting, and is heated to 62-85℃, the jetting pressure is 200-280MPa, preferably the jetting pressure is 250MPa, next the material enters the steam direct injection module, and is heated to a sterilization temperature of 135-145℃ by the steam direct injection mixer. After reaching the sterilization temperature, the material enters the heat preservation module for heat preservation for 3-10s. After heat preservation, the material enters the flash evaporation module for cooling and removal of the water added by the steam direct injection. Finally, after the material is cooled to room temperature in the cooling module, it enters the subsequent process.
[0057] Example 3: Ultra-high pressure ultra-instant sterilization
[0058] In the ultra-high temperature ultra-instant sterilization process, first, the material is heated to a preheating temperature of 30-40℃ by the preheating module, then the material enters the high-pressure jet module for high-speed jetting, and is heated to 85-95℃, next the material enters the steam direct injection module, and is heated to a sterilization temperature of 152-157℃ by the steam direct injection mixer. After reaching the sterilization temperature, the material does not pass through the heat preservation module and directly enters the flash evaporation module for cooling to 55-65℃, and removal of the water added by the steam direct injection, the material stays in the pipeline between the steam direct injection mixer and the flash evaporation module for no more than 0.2s. Finally, after the material is cooled to room temperature in the cooling module, it enters the subsequent process.
[0059] The contents not described in detail in the specification belong to the prior art known to those skilled in the art.
[0060] Finally, it should be pointed out that the above is only a preferred example of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing examples, those skilled in the art can still modify the technical solutions described in the foregoing examples, or make equivalent substitutions for some of the technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principles of the present application shall be included within the protection scope of the present application.
Claims
1. A combined hyperbaric jet thermal sterilization apparatus, characterized in that, The device comprises, in sequence, a preheating module, an ultrahigh-pressure jet module, a steam direct injection module, a heat preservation module, a flash evaporation module and a cooling module; The preheating module is used for heating the material to a preheating temperature to obtain preheated material; The ultrahigh-pressure jet module is used for high-speed jetting of the preheated material to increase the temperature of the preheated material to obtain heated material; The steam direct injection module comprises a steam direct injection mixer and is used for heating the heated material to a sterilization temperature to obtain sterilization temperature material, different heating temperatures corresponding to different structures of the steam direct injection mixer; The heat preservation module is used for heat preservation of the sterilization temperature material to obtain heat preserved material; The flash evaporation module is used for cooling and temperature reduction of the heat preserved material and removing the moisture added by the steam direct injection module to obtain flash evaporated material; The cooling module is used for cooling and temperature reduction of the flash evaporated material to room temperature for entering the next process; The ultrahigh-pressure jet combined heat sterilization device is suitable for pasteurization, UHT sterilization and ultra-high temperature ultra-instant sterilization.
2. The ultrahigh-pressure jet combined heat sterilization device according to claim 1, wherein the preheating temperature of the preheating module is 10-40℃.
3. The ultrahigh-pressure jet combined heat sterilization device according to claim 1, wherein the heating temperature of the ultrahigh-pressure jet module is 62-95℃.
4. The ultrahigh-pressure jet combined heat sterilization device according to claim 1, wherein the sterilization temperature of the steam direct injection module is 135-157℃.
5. The ultrahigh-pressure jet combined heat sterilization device according to claim 2, wherein the heat preservation time of the heat preservation module is 3-20s.
6. The ultrahigh-pressure jet combined heat sterilization device according to claim 1, wherein the cooling and temperature reduction temperature of the flash evaporation module is 55-65℃, and the heat preserved material stays in the pipeline between the heat preservation module and the flash evaporation module for no more than 0.2s. In the pasteurization process, the material sequentially passes through the ultrahigh-pressure jet module, the heat preservation module and the cooling module; The material directly enters the ultrahigh-pressure jet module for jetting heating to 62-85℃ to obtain heated material; The heated material directly enters the heat preservation module for heat preservation for 10-20s to obtain heat preserved material; The heat preserved material directly enters the cooling module for cooling to room temperature for entering the next process. In the UHT sterilization process, the material sequentially enters the preheating module, the ultrahigh-pressure jet module, the steam direct injection module, the heat preservation module, the flash evaporation module and the cooling module; 7. The ultra-high pressure-jet combined heat sterilization apparatus according to claim 1, wherein The material enters the preheating module for heating to a preheating temperature of 10-20℃ to obtain preheated material; The preheated material enters the ultrahigh-pressure jet module for high-speed jetting to increase the temperature of the preheated material to 62-85℃ to obtain heated material; The heated material enters the steam direct injection module for heating to a sterilization temperature of 135-145℃ to obtain sterilization temperature material; The sterilization temperature material enters the heat preservation module for heat preservation for 3-10s to obtain heat preserved material; 8. The ultra-high pressure jet combined thermal sterilization device according to claim 1, characterized in that: The heat preservation material enters the flash module to cool down to 55-65 DEG C, and remove the moisture added by the steam direct injection module, to prepare a flash material; The flash material enters the cooling module to cool to room temperature, to enter the next process.
9. The ultra-high pressure-jet combined heat sterilization apparatus according to claim 1, wherein Under the working condition of ultra-high temperature and ultra-instant sterilization, the material enters the preheating module, the ultra-high pressure jet module, the steam direct injection module, the flash module and the cooling module in sequence; The material enters the preheating module, and is heated to a preheating temperature of 30-40 DEG C, to prepare a preheated material; The preheated material enters the ultra-high pressure jet module to be subjected to high-speed jet, so that the preheated material is heated to 85-95 DEG C, to prepare a heated material; The heated material enters the steam direct injection module to be heated to a sterilization temperature of 152-157 DEG C, to prepare a sterilization temperature material; The heat preservation material enters the flash module to cool down to 55-65 DEG C, and remove the moisture added by the steam direct injection module, to prepare a flash material; The flash material enters the cooling module to cool to room temperature, to enter the next process.