Combined sterilization equipment

Abstract

The utility model relates to the technical field of dairy product processing equipment, and provides combined sterilization equipment which comprises a liquid supply module, a preheating module, a homogenizer, a first heating module for pasteurization heating, a second heating module for ultra-high temperature sterilization heating and a cooling module, a liquid inlet of the homogenizer is communicated with an outlet of the preheating module, the first heating module is communicated with a liquid outlet of the homogenizer, the second heating module is communicated with the first heating module, and the cooling module is connected with the second heating module through a cooling pipeline. The requirements of pasteurization treatment and ultra-high temperature sterilization treatment are simultaneously met through the same set of equipment, only one homogenizing process is needed, the sterilization process can be simplified, intermediate equipment such as an intermediate buffer tank does not need to be arranged, and the occupied space and the use cost are effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of dairy product processing equipment, in particular to a combined sterilization device. Background Art

[0002] In the process of dairy product processing, pasteurization and ultra-high temperature processing (UHT) are usually required. Pasteurization is a gentle and effective food sterilization method, especially for liquid dairy products. Its purpose is to kill pathogens and some spoilage microorganisms in food, while trying to retain the original nutrients and flavor of the food and extend its shelf life. In actual operation, pasteurization usually requires dairy products to be heated to a certain temperature and maintained for a period of time. The typical time may be from a few seconds to tens of minutes, depending on the specific temperature and the resistance of the target microorganisms. Ultra-high temperature sterilization is a more stringent food sterilization technology, especially suitable for extending the shelf life of liquid foods such as dairy products and beverages. This method heats the food to a higher temperature for a few seconds, and then quickly cools it to seal the package to prevent secondary contamination.

[0003] In the prior art, pasteurization and ultra-high temperature sterilization need to be completed by two independent devices, which occupy a large space and have high use costs. In addition, in order to ensure that the pasteurization equipment and the ultra-high temperature sterilization equipment can be used in coordination, it is also necessary to add an intermediate buffer tank, which further increases the occupied space and use costs. Utility Model Content

[0004] The utility model provides a combined sterilization device, which is used to solve the problem in the prior art that pasteurization and ultra-high temperature sterilization need to be completed by two independent devices, the devices occupy a large space and have high use costs.

[0005] The utility model provides a combined sterilization device, comprising:

[0006] Liquid supply module;

[0007] A preheating module, the inlet of which is in communication with the liquid supply module;

[0008] A homogenizer, wherein the liquid inlet of the homogenizer is connected to the outlet of the preheating module;

[0009] A first heating module for pasteurization heating, wherein the first heating module is connected to a liquid outlet of the homogenizer;

[0010] A second heating module for ultra-high temperature sterilization heating, wherein the second heating module is connected to the first heating module;

[0011] The cooling module is connected to the second heating module via a cooling pipeline.

[0012] According to a combined sterilization device provided by the utility model, the preheating module includes a first heat exchanger, a first heat exchange side of the first heat exchanger is connected to the liquid supply module and the homogenizer through a pipeline, and a second heat exchange side of the first heat exchanger is connected to the cooling pipeline.

[0013] According to a combined sterilization device provided by the utility model, it also includes a heat source supply pipeline, and the heat source supply pipeline is suitable for connecting to a heating device;

[0014] The first heating module includes a second heat exchanger, the second heating module includes a third heat exchanger, and the heat source supply pipeline is sequentially connected to the third heat exchanger and the second heat exchanger.

[0015] According to a combined sterilization device provided by the utility model, the first heating module also includes a first holding tube, the first holding tube is connected between the second heat exchanger and the third heat exchanger, and the holding time of the first holding tube is 15 seconds.

[0016] According to a combined sterilization device provided by the utility model, the second heating module also includes a second holding tube, the second holding tube is connected to the third heat exchanger and the cooling pipeline, and the holding time of the second holding tube is 4 seconds to 6 seconds.

[0017] According to a combined sterilization equipment provided by the utility model, the second heating module also includes a fourth heat exchanger, the first heat exchange side of the fourth heat exchanger is connected to the second retaining tube and the cooling pipeline, the second heat exchange side of the fourth heat exchanger is connected to the heat source supply pipeline and the third heat exchanger, and in the liquid supply direction of the heat source supply pipeline, the fourth heat exchanger, the third heat exchanger and the second heat exchanger are connected in series in sequence.

[0018] According to a combined sterilization device provided by the utility model, the second heating module also includes a control valve, which connects the fourth heat exchanger, the third heat exchanger and the heat source supply pipeline, and the control valve has a first state and a second state. In the first state, the heat source supply pipeline is connected to the third heat exchanger, and the fourth heat exchanger is disconnected from the heat source supply pipeline and the third heat exchanger respectively. In the second state, the heat source supply pipeline is connected to the fourth heat exchanger, and the fourth heat exchanger is connected to the third heat exchanger.

[0019] According to a combined sterilization device provided by the utility model, the cooling module includes a fifth heat exchanger and a cold source supply pipeline, the first heat exchange side of the fifth heat exchanger is connected to the cooling pipeline, the second heat exchange side of the fifth heat exchanger is connected to the cold source supply pipeline, and the cold source supply pipeline is suitable for connecting to the cold source supply device.

[0020] According to a combined sterilization device provided by the utility model, a plurality of the fifth heat exchangers are provided, the first heat exchange sides of the plurality of the fifth heat exchangers are arranged in series, and the second heat exchange sides of the plurality of the fifth heat exchangers are arranged in parallel.

[0021] According to a combined sterilization device provided by the utility model, the liquid supply module includes a supply pump, a balancing tank, a filter and a variable frequency pump connected in series in sequence, and the outlet of the variable frequency pump is connected to the preheating module.

[0022] The combined sterilization equipment provided by the utility model, when supplying the sterilized product to the preheating module through the liquid supply module, can reach the processing temperature of the homogenizer after preheating through the preheating module, and after a homogenization treatment by the homogenizer, pasteurization treatment and ultra-high temperature sterilization treatment are respectively carried out through the first heating module and the second heating module, and then cooled by the cooling module. It can be seen that the utility model meets the needs of pasteurization treatment and ultra-high temperature sterilization treatment at the same time through the same set of equipment, and only needs to carry out a homogenization process, which can simplify the sterilization process, and does not need to set up intermediate equipment such as intermediate buffer tanks, effectively reducing space occupancy and use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of a combined sterilization device provided by the utility model;

[0025] Reference numerals:

[0026] 1. Supply pump; 2. Balancing tank; 3. Filter; 4. Frequency conversion pump; 5. First heat exchanger; 6. Second heat exchanger; 7. Third heat exchanger; 8. Fourth heat exchanger; 9. Fifth heat exchanger; 10. Homogenizer; 11. First holding tube; 12. Second holding tube; 13. Cooling pipeline; 14. Heat source supply pipeline; 15. Cold source supply pipeline; 16. Control valve; DETAILED DESCRIPTION

[0027] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0028] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Combine the following Figure 1 The combined sterilization equipment of the embodiment of the utility model includes a liquid supply module, a preheating module, a homogenizer 10, a first heating module, a second heating module and a cooling module; the inlet of the preheating module is connected to the liquid supply module; the liquid inlet of the homogenizer 10 is connected to the outlet of the preheating module; the first heating module is connected to the liquid outlet of the homogenizer 10, and the first heating module is used for pasteurization heating; the second heating module is connected to the first heating module, and the second heating module is used for ultra-high temperature sterilization heating; the cooling module is connected to the second heating module through a cooling pipeline 13.

[0033] In this embodiment, the liquid supply module is used to supply the emulsion product to be sterilized, and the emulsion product supplied by the liquid supply module is preheated in the preheating module to meet the homogenization requirements of the homogenizer 10. The emulsion product homogenized by the homogenizer 10 is heated by the first heating module, the temperature is raised to the pasteurization required temperature, and pasteurization is achieved, and then heated by the second heating module, the temperature is raised to the ultra-high temperature sterilization required temperature, and ultra-high temperature sterilization is achieved, and then the temperature is cooled by the cooling module, which can facilitate rapid guarantee and avoid secondary contamination.

[0034] In this embodiment, the pasteurization and ultra-high temperature sterilization functions are integrated to achieve centralization, and only one homogenization process is required, which can effectively reduce the occupied space and use cost. The homogenizer 10 can be a high-pressure homogenizer 10, which can meet the pressure requirements of pasteurization and ultra-high temperature sterilization at the same time.

[0035] In some embodiments of the present invention, the preheating module includes a first heat exchanger 5 , a first heat exchange side of the first heat exchanger 5 is connected to the liquid supply module and the homogenizer 10 through a pipeline, and a second heat exchange side of the first heat exchanger 5 is connected to a cooling pipeline 13 .

[0036] After reaching the first heat exchanger 5, the emulsion product supplied by the liquid supply module exchanges heat with the emulsion product in the cooling pipeline 13. On the one hand, the newly supplied emulsion product is heated to meet the homogenization requirement. On the other hand, the emulsion temperature in the cooling pipeline 13 can be reduced, thereby reducing the cooling difficulty.

[0037] Through the above scheme, this embodiment can realize heat recovery and utilization, which is beneficial to energy conservation and emission reduction, and can also reduce the total amount of heating equipment and cooling equipment arranged, further reducing space occupancy and use costs.

[0038] In some embodiments of the utility model, the combined sterilization equipment also includes a heat source supply pipeline 14, which is suitable for connecting to a heating device; the first heating module includes a second heat exchanger 6, and the second heating module includes a third heat exchanger 7, and the heat source supply pipeline 14 is connected to the third heat exchanger 7 and the second heat exchanger 6 in sequence.

[0039] In this embodiment, the heat source supply pipeline 14 is used to directly connect to an external heating device, such as a steam boiler, an electric heating element or a hot water circulation system, so as to ensure that the equipment has a sufficient heat source when performing a sterilization task.

[0040] The heat source supply pipeline 14 is connected in series with the third heat exchanger 7 and the second heat exchanger 6 in sequence. During the transportation process, the heat source first passes through the third heat exchanger 7 for heat exchange, and then passes through the second heat exchanger 6 for heat exchange, thus ensuring that both different sterilization stages can get good heat supply. Specifically, the ultra-high temperature sterilization process has a higher temperature requirement, and the pasteurization process has a lower temperature requirement. The heat source provided by the heat source supply pipeline 14 first reaches the third heat exchanger 7 for heat exchange to ensure that the heat demand of high-temperature sterilization is met. After passing through the third heat exchanger 7, the temperature of the heat source drops, and when entering the second heat exchanger 6 for heat exchange, the temperature requirement of the pasteurization process can be met. This setting method can make the utilization rate of the heat source higher on the one hand, and on the other hand, there is no need to set up separate heat source supply pipelines and supply equipment for the second heat exchanger 6 and the third heat exchanger 7, which can further reduce equipment cost investment and space occupation.

[0041] The heat source supply pipeline 14 and its connection with the first heating module and the second heating module are major improvements to the existing sterilization equipment. It not only enhances the performance of the equipment, but also greatly optimizes the production process and energy consumption control of food processing enterprises, and strongly promotes technological progress in the dairy industry and related food manufacturing fields.

[0042] In some embodiments of the utility model, the first heating module also includes a first holding tube 11, which is connected between the second heat exchanger 6 and the third heat exchanger 7, and the holding time of the first holding tube 11 is 15 seconds. The main function of the first holding tube 11 is to slow down the flow rate of the material and force it to maintain the set temperature for at least 15 seconds. This design principle follows the basic principle of pasteurization, that is, to maintain a certain temperature for a sufficient time to ensure that pathogenic microorganisms are effectively killed without excessively destroying the nutritional value and taste of the food. Specifically, when milk or other materials to be sterilized come out of the second heat exchanger 6, they will stay in the first holding tube 11 for 15 seconds, during which the material temperature is maintained in the temperature range required for pasteurization, such as about 60-72°C. Such a design not only meets the requirements of pasteurization for killing most harmful bacteria, but also minimizes the damage to the beneficial components of food, thereby achieving a dual guarantee of food quality and safety.

[0043] In some embodiments of the present invention, the second heating module further includes a second holding tube 12, the second holding tube 12 is connected to the third heat exchanger 7 and the cooling pipeline 13, and the holding time of the second holding tube 12 is 4 seconds to 6 seconds.

[0044] The second holding tube 12 constitutes a key heat treatment channel. In the ultra-high temperature sterilization stage, that is, after the material passes through the third heat exchanger 7 and is instantly raised to an extremely high temperature (for example, above 135°C), the material can be maintained in the high temperature environment for a very short time (the holding time is 4 to 6 seconds) to achieve the purpose of completely killing heat-resistant microorganisms. This short and intense high-temperature treatment can ensure that all potential pathogens and heat-resistant spore-forming bacteria in the food are effectively removed, while minimizing the impact on the original quality of the food. The ingenious setting of the second holding tube 12 makes the sterilization process more compact and efficient, while also reducing the unnecessary residence time of the material in a high temperature environment, which is beneficial to maintaining the freshness and nutritional content of the food, thereby improving the safety and market competitiveness of the final product.

[0045] In some embodiments of the utility model, the second heating module also includes a fourth heat exchanger 8, the first heat exchange side of the fourth heat exchanger 8 is connected to the second retaining tube 12 and the cooling pipeline 13, the second heat exchange side of the fourth heat exchanger 8 is connected to the heat source supply pipeline 14 and the third heat exchanger 7, and in the liquid supply direction of the heat source supply pipeline 14, the fourth heat exchanger 8, the third heat exchanger 7 and the second heat exchanger 6 are connected in series in sequence.

[0046] When the temperature of the emulsion product cannot reach the required temperature after flowing out of the second holding tube 12, it can be heated by the fourth heat exchanger 8. Since the fourth heat exchanger 8, the third heat exchanger 7 and the second heat exchanger 6 are connected in series in the liquid supply direction of the heat source supply pipeline 14, the heat exchange sequence is the fourth heat exchanger 8, the third heat exchanger 7 and the second heat exchanger 6, which can ensure that the fourth heat exchanger 8 has a higher heat exchange temperature to meet the need for further heating.

[0047] Optionally, the second heating module also includes a control valve 16, which connects the fourth heat exchanger 8, the third heat exchanger 7 and the heat source supply pipeline 14. The control valve 16 has a first state and a second state. In the first state, the heat source supply pipeline 14 is connected to the third heat exchanger 7, and the fourth heat exchanger 8 is disconnected from the heat source supply pipeline 14 and the third heat exchanger 7 respectively. In the second state, the heat source supply pipeline 14 is connected to the fourth heat exchanger 8, and the fourth heat exchanger 8 is connected to the third heat exchanger 7.

[0048] Specifically, the control valve 16 may be a four-way reversing valve having four valve ports, namely, port a, port b, port c and port d, wherein port a is connected to the third heat exchanger 7, port b is connected to the outlet of the second heat exchange side of the fourth heat exchanger 8, port c is connected to the heat source supply pipeline 14, and port d is connected to the inlet of the second heat exchange side of the fourth heat exchanger 8. The control valve 16 is in a first state in one valve position, at which port a of the control valve 16 is connected to port d, and ports a, b and d are disconnected, as well as port c and ports b and d are disconnected, so that the fourth heat exchanger 8 is disconnected from the heat source supply pipeline 14 and the third heat exchanger 7 respectively; the control valve 16 is in a second state in another valve position, at which port a of the control valve 16 is connected to port b, port c is connected to port d, and ports a, c and ports b are disconnected, so that the heat source supply pipeline 14 is connected to the fourth heat exchanger 8, and the fourth heat exchanger 8 is connected to the third heat exchanger 7.

[0049] In this embodiment, by setting the control valve 16, it is possible to select whether to use the fourth heat exchanger 8 as needed. When the fourth heat exchanger 8 is not needed, the control valve 16 can be switched to the first state. When the fourth heat exchanger 8 is needed, the control valve 16 can be switched to the second state, which has better applicability in actual application.

[0050] In some embodiments of the utility model, the cooling module includes a fifth heat exchanger 9 and a cold source supply pipeline 15, the first heat exchange side of the fifth heat exchanger 9 is connected to the cooling pipeline 13, and the second heat exchange side of the fifth heat exchanger 9 is connected to the cold source supply pipeline 15, and the cold source supply pipeline 15 is suitable for connecting the cold source supply equipment.

[0051] The fifth heat exchanger 9 realizes heat exchange between the cold source in the cold source supply pipeline 15 and the emulsion product in the temperature reduction pipeline 13, thereby reducing the temperature of the emulsion product.

[0052] In this embodiment, the cooling module adopts the fifth heat exchanger 9 and the cold source supply pipeline 15. This design enhances the equipment's ability to quickly cool the emulsion product after the sterilization treatment. Specifically, the first heat exchange side of the fifth heat exchanger 9 is directly connected to the cooling pipeline 13, so that the emulsion product after high temperature treatment can flow into the fifth heat exchanger 9 in time for cooling and heat exchange. At the same time, the second heat exchange side of the fifth heat exchanger 9 is connected to the cold source supply pipeline 15, which is specially designed to be connected to a low-temperature medium supply device such as chilled water, refrigerant or other forms to provide the cold source required for cooling. When the cold source enters the fifth heat exchanger 9 through the cold source supply pipeline 15, it conducts efficient heat exchange with the emulsion product, quickly absorbs the heat in the emulsion, and thus reduces the temperature of the emulsion to a suitable storage and transportation level. The structural design of this cooling module not only ensures the rapid cooling of the emulsion product after sterilization, preventing nutrient loss and quality degradation due to excessive temperature, but also improves the energy efficiency of the equipment through reasonable heat exchanger design and rational use of cold sources, achieves energy saving and consumption reduction, optimizes the overall production process, and enhances the market competitiveness of the product.

[0053] In some embodiments of the present invention, a plurality of fifth heat exchangers 9 are provided, and the first heat exchange sides of the plurality of fifth heat exchangers 9 are arranged in series, and the second heat exchange sides of the plurality of fifth heat exchangers 9 are arranged in parallel.

[0054] In this embodiment, the cooling module is provided with a plurality of fifth heat exchangers 9 to enhance the cooling efficiency and stability. Specifically, the first heat exchange sides of the plurality of fifth heat exchangers 9 are arranged in series, which means that the emulsion product treated at high temperature will gradually release heat in the process of flowing through a series of fifth heat exchangers 9, and each stage of the heat exchanger will further cool it to achieve step-by-step cooling, ensuring that the emulsion product can be smoothly and evenly reduced to the required storage temperature. In addition, the second heat exchange sides of the plurality of fifth heat exchangers 9 are arranged in parallel, that is, all the fifth heat exchangers 9 can obtain cold sources from the cold source supply pipeline 15 at the same time and perform cooling operations synchronously. This method greatly improves the cooling efficiency, and the cold source distribution can be flexibly adjusted according to the cooling rate and total amount requirements of the emulsion product, ensuring that fast and uniform cooling can be achieved even in high-volume conditions.

[0055] On the whole, this design of the fifth heat exchanger 9 combining multi-stage series and parallel connections not only optimizes the cooling process and improves the cooling capacity and efficiency of the equipment, but also helps to ensure the stable quality of the emulsion product after cooling and meet food safety and storage period requirements. It also reflects the innovation and practicality of the utility model in terms of equipment structure and process flow.

[0056] In some embodiments of the present invention, the first heat exchanger 5, the second heat exchanger 6, the third heat exchanger 7, the fourth heat exchanger 8 and the fifth heat exchanger 9 are all tubular heat exchangers, which can meet the flow and pressure requirements of pasteurization and ultra-high temperature sterilization at the same time.

[0057] In some embodiments of the present invention, the liquid supply module includes a supply pump 1, a balancing tank 2, a filter 3 and a variable frequency pump 4 connected in series in sequence, and the outlet of the variable frequency pump 4 is connected to the preheating module.

[0058] First, the supply pump 1 is responsible for extracting the raw material liquid from the storage area and starting the entire liquid supply process. Then, the raw material liquid enters the balance tank 2, which is used to stabilize the flow, eliminate pressure fluctuations, ensure smooth liquid flow, and prevent the subsequent equipment from being impacted by sudden changes in flow.

[0059] Subsequently, the raw material liquid passes through the filter 3. The main function of the filter 3 is to remove impurities and tiny particles in the raw material, improve the purity of the product, ensure that the subsequent sterilization process is not interfered by impurities, and also protect the heat exchanger of the sterilization equipment from being blocked or damaged.

[0060] Finally, the filtered raw material liquid will flow into the variable frequency pump 4. As an intelligent device, the variable frequency pump 4 can adjust the output flow and pressure according to the actual production needs to ensure that the raw material liquid can be delivered at a precisely controlled speed and pressure before entering the preheating module, thereby improving the efficiency and consistency of the preheating stage.

[0061] The outlet of the variable frequency pump 4 is connected to the preheating module, which completes the transition from the liquid supply module to the preheating module, indicating that the raw material liquid officially enters the pretreatment stage before sterilization, and fully prepares for its subsequent efficient sterilization in the first heating module (pasteurization) and the second heating module (ultra-high temperature sterilization).

[0062] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A combined sterilization device, characterized in that: include: Liquid supply module; A preheating module, the inlet of which is in communication with the liquid supply module; A homogenizer, wherein the liquid inlet of the homogenizer is connected to the outlet of the preheating module; A first heating module for pasteurization heating, wherein the first heating module is connected to a liquid outlet of the homogenizer; A second heating module for ultra-high temperature sterilization heating, wherein the second heating module is connected to the first heating module; The cooling module is connected to the second heating module via a cooling pipeline.

2. The combined sterilization equipment according to claim 1, characterized in that: The preheating module includes a first heat exchanger, a first heat exchange side of the first heat exchanger is connected to the liquid supply module and the homogenizer through a pipeline, and a second heat exchange side of the first heat exchanger is connected to the cooling pipeline.

3. The combined sterilization equipment according to claim 1 or 2, characterized in that: Also included is a heat source supply pipeline, wherein the heat source supply pipeline is suitable for connecting to a heating device; The first heating module includes a second heat exchanger, the second heating module includes a third heat exchanger, and the heat source supply pipeline is sequentially connected to the third heat exchanger and the second heat exchanger.

4. The combined sterilization device according to claim 3, characterized in that: The first heating module further includes a first holding tube, which is connected between the second heat exchanger and the third heat exchanger, and a holding time of the first holding tube is 15 seconds.

5. The combined sterilization equipment according to claim 3, characterized in that: The second heating module also includes a second holding tube, which is connected to the third heat exchanger and the cooling pipeline, and the holding time of the second holding tube is 4 seconds to 6 seconds.

6. The combined sterilization device according to claim 5, characterized in that: The second heating module also includes a fourth heat exchanger, a first heat exchange side of the fourth heat exchanger is connected to the second retaining tube and the cooling pipeline, and a second heat exchange side of the fourth heat exchanger is connected to the heat source supply pipeline and the third heat exchanger. In the liquid supply direction of the heat source supply pipeline, the fourth heat exchanger, the third heat exchanger and the second heat exchanger are connected in series in sequence.

7. The combined sterilization device according to claim 6, characterized in that: The second heating module also includes a control valve, which connects the fourth heat exchanger, the third heat exchanger and the heat source supply pipeline, and the control valve has a first state and a second state. In the first state, the heat source supply pipeline is connected to the third heat exchanger, and the fourth heat exchanger is disconnected from the heat source supply pipeline and the third heat exchanger respectively. In the second state, the heat source supply pipeline is connected to the fourth heat exchanger, and the fourth heat exchanger is connected to the third heat exchanger.

8. The combined sterilization equipment according to claim 1, characterized in that: The cooling module includes a fifth heat exchanger and a cold source supply pipeline. The first heat exchange side of the fifth heat exchanger is connected to the cooling pipeline. The second heat exchange side of the fifth heat exchanger is connected to the cold source supply pipeline. The cold source supply pipeline is suitable for connecting a cold source supply device.

9. The combined sterilization device according to claim 8, characterized in that: There are multiple fifth heat exchangers, and the first heat exchange sides of the multiple fifth heat exchangers are arranged in series, and the second heat exchange sides of the multiple fifth heat exchangers are arranged in parallel.

10. The combined sterilization equipment according to claim 1, characterized in that: The liquid supply module comprises a supply pump, a balancing tank, a filter and a variable frequency pump which are connected in series in sequence, and an outlet of the variable frequency pump is connected to the preheating module.

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