A sterilization device for dairy product processing

Abstract

The utility model relates to food sterilization technical field, concretely, relate to a sterilization device for dairy food processing, including sterilization jar body and fixed in the liquid inlet one and liquid outlet one of sterilization jar body surface and with the communication of sterilization jar body, its characterized in that: the inner chamber is equipped with in the sterilization jar body, the inner chamber is equipped with spiral flow guide channel inside, the pitch of spiral flow guide channel gradually reduces from the entry end to the exit end, the inner chamber surface fixedly connected with a plurality of microwave generator and the steam interlayer around the inner chamber arrangement, the radiation direction of microwave generator and spiral flow guide channel axis angle of 30 45 degrees is clamped, the liquid outlet one is equipped with heat exchange pipe, is used for recovering the heat in the liquid after sterilization, reduces the energy consumption, through the variable pitch design of spiral flow guide channel combines microwave - steam synergic sterilization, significantly improves the uniformity of sterilization, simultaneously utilizes the reverse spiral heat exchange tube and realizes the efficient recovery of waste heat.

Description

Technical Field

[0001] This utility model relates to the field of food sterilization technology, specifically to a sterilization device for dairy food processing. Background Technology

[0002] Dairy products refer to various foods made using cow's milk or goat's milk and their processed products as the main raw materials, with or without the addition of appropriate amounts of vitamins, minerals and other auxiliary materials.

[0003] Currently, most traditional dairy product sterilization devices use a single heating method, such as steam heating or water bath heating, which generally suffers from uneven heating. Taking steam heating as an example, when steam comes into contact with dairy products, factors such as pipe layout and steam flow direction can cause different parts of the dairy product to be heated to different degrees. This is especially true when processing high-viscosity dairy products, such as cheese puree and thick yogurt, where steam cannot penetrate the material quickly and evenly. This results in the dairy product near the steam inlet being overheated, destroying its nutritional components, while areas far from the inlet are underheated and cannot reach the effective sterilization temperature, posing a risk of microbial residue.

[0004] Therefore, there is an urgent need for a sterilization device for dairy food processing to improve the shortcomings of existing technologies. Utility Model Content

[0005] The purpose of this invention is to provide a sterilization device for dairy food processing. By combining a variable pitch spiral guide channel with microwave-steam synergistic sterilization, the sterilization uniformity is significantly improved. Simultaneously, the reverse spiral heat exchange tube enables efficient waste heat recovery, thereby solving the problems mentioned in the background art. Traditional dairy food sterilization devices mostly use a single heating method, such as steam heating or water bath heating, which generally suffers from uneven heating.

[0006] To achieve the above objectives, this utility model provides a sterilization device for dairy food processing, including a sterilization tank and an inlet and an outlet fixed to the surface of the sterilization tank and communicating with the sterilization tank. The sterilization tank is provided with an inner cavity, and a spiral guide channel is provided inside the inner cavity. The pitch of the spiral guide channel gradually decreases from the inlet end to the outlet end. The inner cavity surface is fixedly connected to several microwave generators and a steam jacket arranged around the inner cavity. The radiation direction of the microwave generators forms an angle of 30-45° with the axis of the spiral guide channel. Furthermore, the heat exchange tube includes a heat exchange outer tank, the heat exchange outer tank is hollow inside, and the heat exchange outer tank is provided with a plurality of guide pipes parallel to the heat exchange outer tank.

[0007] In the above technical solution, the dairy products enter the inner cavity of the sterilization tank through the inlet and flow along the spiral guide channel. Because the channel pitch gradually decreases from the inlet to the outlet, the flow velocity of the dairy products continuously increases during the flow process, simultaneously generating a turbulence effect and increasing the contact area and time with the sterilization medium. A microwave generator arranged on the surface of the inner cavity radiates microwaves at a 30-45° angle into the spiral guide channel. The high-frequency vibration of the microwaves penetrates the dairy products, causing the internal water molecules to rapidly generate heat through friction, achieving sterilization from the inside out. Steam is introduced through the steam jacket surrounding the inner cavity, providing external heating and sterilization of the dairy products through heat conduction. The combination of microwave and steam heating, with simultaneous internal and external action, significantly improves sterilization efficiency, ensures uniform heating of the dairy products, and avoids problems such as incomplete sterilization or nutrient loss in certain areas.

[0008] Based on this, after sterilization, the dairy products flow out through the liquid outlet. The heat exchange tube installed here recovers heat from the high-temperature liquid and transfers the heat to the dairy products to be sterilized or other media that need to be preheated. This effectively reduces the energy consumption of the entire sterilization process and solves the problem of insufficient heat recovery in traditional equipment.

[0009] In another technical solution, a temperature sensor is provided at the inlet end of the inner cavity. The temperature sensor is linked with the control module of the microwave generator and the steam jacket to adjust the microwave power and steam pressure according to the real-time temperature. The inner wall surface of the spiral guide channel inside the inner tank is provided with a mirror polishing layer.

[0010] In this technical solution, a temperature sensor at the inlet of the inner cavity monitors the temperature of the dairy products entering the sterilization device in real time and transmits the data to the control module of the microwave generator and steam jacket. Based on preset temperature parameters and real-time monitoring data, the control module intelligently adjusts the microwave power and steam pressure to achieve precise and efficient sterilization. This reduces the resistance of the dairy products during flow, especially for high-viscosity dairy products, allowing them to pass more smoothly through the spiral guide channel and reducing localized stagnation and uneven heating caused by poor flow.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This sterilization device for dairy processing significantly improves sterilization uniformity through a variable-pitch spiral flow channel combined with microwave-steam synergistic sterilization. Simultaneously, it utilizes a reverse spiral heat exchange tube for efficient waste heat recovery. The mirror-polished inner wall and modular structure greatly reduce cleaning difficulty, while optimized microwave radiation angle and adaptive flow control further broaden the equipment's compatibility with liquid and semi-solid dairy products. The overall solution, while ensuring sterilization effectiveness, also features low energy consumption, easy maintenance, and high adaptability, making it particularly suitable for small- to medium-scale dairy processing scenarios. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the overall structure of the embodiment; Figure 2 This is a schematic diagram of the sterilization tank structure in an embodiment; Figure 3 This is a schematic diagram of the overall cross-section and liquid flow direction of the embodiment. Figure 4 This is a schematic diagram of a heat pipe structure for an embodiment.

[0013] The meanings of the labels in the diagram are as follows: 100. Sterilization tank body; 101. Inner cavity; 102. Steam jacket; 103. Microwave generator; 104. Spiral guide channel; 105. One liquid inlet; 106. One liquid outlet; 200. Heat exchange tube; 201. Heat exchange outer tank; 202. Outlet 2; 203. Inlet 2; 204. Guide tube; 205. Inlet 3; 206. Outlet 3. Detailed Implementation

[0014] 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.

[0015] Most traditional dairy product sterilization devices currently use a single heating method, such as steam heating or water bath heating, which generally suffers from uneven heating. Please refer to [link to relevant documentation]. Figures 1-4 As shown, this embodiment provides a sterilization device for dairy food processing, including an inner cavity 101. The inner cavity 101 is provided with a spiral guide channel 104, and the pitch of the spiral guide channel 104 gradually decreases from the inlet end to the outlet end. Several microwave generators 103 and a steam jacket 102 arranged around the inner cavity 101 are fixedly connected to the surface of the inner cavity 101. The radiation direction of the microwave generators 103 forms an angle of 30-45° with the axis of the spiral guide channel 104.

[0016] During implementation, dairy products enter the spiral guide channel 104 of the inner cavity 101 through the liquid inlet. As the channel pitch gradually decreases, the flow velocity increases and turbulence is generated, increasing the contact with the sterilization medium. The microwave generator 103 on the surface of the inner cavity 101 radiates microwaves at an angle of 30-45°, and the steam jacket 102 releases steam. The two work together to heat and sterilize the product.

[0017] See Figure 2As shown, dairy products enter through the inlet 105 on the surface of the sterilization tank 100 and flow into the inner tank. The inner tank, with its special structure, microwave generator 103, and steam jacket 102, achieves efficient sterilization. After sterilization, the products flow out through the outlet 106. The heat exchange tube 200 at the outlet 106 recovers heat and reduces energy consumption. The entire process is carried out in an orderly manner within the sterilization tank 100.

[0018] Figure 3 and Figure 4 In the process, the dairy products enter the inner cavity 101 of the sterilization tank 100 through inlet 105 for sterilization, then flow out through outlet 106 and enter the inlet 203 of the heat exchange outer tank 201 via a conduit. Within the heat exchange outer tank 201, they transfer heat to the internal guide pipe 204. Simultaneously, the external liquid to be processed enters the guide pipe 204 within the heat exchange outer tank 201 through inlet 305, absorbing the heat transferred from the sterilized dairy products. It then flows out through outlet 306 via guide pipe 204 and is transported back to inlet 105 via a conduit for preheating. The sterilized dairy products, having completed heat transfer, are discharged through outlet 202. In addition, the temperature sensor at the inlet of the inner cavity 101 monitors the temperature of the dairy products entering the inner cavity 101 in real time and feeds the data back to the control module. The control module adjusts the power of the microwave generator 103 and the steam pressure of the steam jacket 102 according to the preset parameters and the real-time temperature to ensure that the dairy products are sterilized efficiently at a suitable temperature.

[0019] In this embodiment, a sterilization device for dairy processing is used such that, firstly, the dairy product flows into the inner cavity 101 of the sterilization tank 100 through the inlet 105 and travels along the spiral guide channel 104. Because the channel pitch gradually decreases from the inlet to the outlet, the flow rate of the dairy product increases, creating turbulence and increasing contact with the sterilization medium. A microwave generator 103 on the surface of the inner cavity 101 radiates microwaves at a 30-45° angle into the spiral guide channel 104. This works in conjunction with the steam jacket 102 surrounding the inner cavity 101, achieving heating from the inside out through microwaves and heating from the outside in through heat conduction. This simultaneous improvement in sterilization efficiency and uniformity enhances both the internal and external processes.

[0020] After sterilization, the dairy products flow out from outlet 106 and enter the heat exchange tank 201 of the heat exchange tube 200. They then flow through inlet 203, where heat is transferred to the internally arranged parallel guide tubes 204. The external liquid to be processed enters the guide tubes 204 through inlet 305, absorbs heat, and then flows from outlet 306 through a conduit back to inlet 105 for preheating. The sterilized dairy products, having completed heat exchange, are discharged from outlet 202. Simultaneously, a temperature sensor at the inlet of the inner cavity 101 monitors the dairy product temperature in real time and feeds the data back to the control module. The control module adjusts the power of the microwave generator 103 and the pressure of the steam jacket 102 accordingly to achieve precise temperature control. Furthermore, the mirror-polished layer on the inner wall of the spiral guide channel 104 reduces the flow resistance of the dairy products, minimizes cleaning dead zones, and ensures equipment cleanliness and dairy product hygiene.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A sterilization device for dairy food processing, comprising a sterilization tank (100) and an inlet (105) and an outlet (106) fixed to the surface of the sterilization tank (100) and communicating with the sterilization tank (100), characterized in that: The sterilization tank (100) is provided with an inner cavity (101), and the inner cavity (101) is provided with a spiral guide channel (104), the pitch of the spiral guide channel (104) gradually decreases from the inlet end to the outlet end; The inner cavity (101) is fixedly connected to a plurality of microwave generators (103) and a steam jacket (102) arranged around the inner cavity (101). The radiation direction of the microwave generators (103) forms an angle of 30-45° with the axis of the spiral guide channel (104). A heat exchange tube (200) is provided at the liquid outlet (106) to recover the heat in the liquid after sterilization.

2. The sterilization device for dairy food processing according to claim 1, characterized in that: The heat exchange tube (200) includes a heat exchange outer tank (201), which is hollow inside. The heat exchange outer tank (201) is provided with a plurality of guide tubes (204) parallel to the heat exchange outer tank (201).

3. The sterilization device for dairy food processing according to claim 2, characterized in that: The heat exchange tank (201) is provided with an inlet three (205) and an outlet three (206) at both ends.

4. The sterilization device for dairy food processing according to claim 3, characterized in that: The third liquid outlet (206) is connected to the first liquid inlet (105) via a conduit, and the third liquid inlet (205) is used to connect to an external liquid input.

5. The sterilization device for dairy food processing according to claim 2, characterized in that: The surface of the heat exchange tank (201) is provided with a second liquid outlet (202) and a second liquid inlet (203). The second liquid inlet (203) and the first liquid outlet (106) are connected by a conduit. The second liquid outlet (202) is used to discharge the sterilized liquid after heat recovery.

6. The sterilization device for dairy food processing according to claim 1, characterized in that: The inlet end of the inner cavity (101) is equipped with a temperature sensor, which is linked with the control module of the microwave generator (103) and the steam jacket (102) to adjust the microwave power and steam pressure according to the real-time temperature.

7. The sterilization device for dairy food processing according to claim 1, characterized in that: The inner wall surface of the spiral guide channel (104) is provided with a mirror polishing layer.

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