Pasteurization tank cooling mechanism

Abstract

The utility model relates to the technical field of sterilization tanks, in particular to a pasteurization tank cooling mechanism which comprises a shell, an inner tank, a cover cap and a stirring mechanism, the inner tank is composed of an outer container and an inner container, a gap for cold water to flow through is formed between the outer container and the inner container, a plurality of cooling flow channels are evenly divided in the gap, and a dispersing cavity and a water collecting cavity are arranged at the two ends of the inner tank. Cold water is guided into the dispersing cavity through the water inlet pipe, the outer wall of the inner container is evenly cooled through the cooling flow channel, and water absorbing heat is discharged out of the water collecting cavity through the water outlet pipe. A heat exchanger is arranged in the dispersion cavity and is composed of a refrigeration pipe and fins, a refrigerant circulates in the refrigeration pipe, and the fins enlarge the heat exchange area and improve the circulation efficiency of cooling water through water passing holes; the cooling efficiency is improved by increasing the heat transfer area, the outer container and the inner container are connected and fixed through screws between the locking plates and the connecting plates, and the structure is stable and reliable.

Description

Technical Field

[0001] This utility model relates to the field of sterilization tank technology, and in particular to a cooling mechanism for a pasteurization tank. Background Technology

[0002] Pasteurization is a common sterilization method in dairy processing. It kills harmful microorganisms by moderately heating the milk while preserving the nutritional components and flavor of the dairy product to the greatest extent possible. However, after sterilization, the milk usually needs to be rapidly cooled to prevent denaturation or quality degradation under high temperatures. Therefore, the performance of the cooling mechanism in dairy processing equipment directly affects the processing quality and production efficiency of dairy products.

[0003] Currently, traditional pasteurization tank cooling devices typically achieve cooling through indirect contact between cold water or refrigerant and the emulsion. However, the existing technology still has the following problems:

[0004] 1. Uneven cooling: Due to the single or uneven flow path of cold water when flowing through the heat exchange area, the local cooling effect is poor, and the emulsion cannot be cooled quickly and evenly.

[0005] 2. Low heat transfer efficiency: In traditional devices, the heat conduction path between the inner liner and the cooling medium is long or the heat conduction efficiency is low, which limits the cooling speed, especially when a lower temperature needs to be achieved.

[0006] 3. Limited applicable temperature range: Some cooling devices rely solely on the natural absorption of heat by cold water for cooling, which is insufficient to meet the extremely low temperature requirements in dairy processing, thus limiting their application in the production of high-quality dairy products. Utility Model Content

[0007] To address the problems of uneven cooling, low cooling efficiency, and limited applicable temperature range in existing technologies, this invention proposes a cooling mechanism for pasteurization tanks.

[0008] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: a pasteurization tank cooling mechanism, including an outer shell, a rotatable and openable cover installed on the upper side of the outer shell, and an inner tank for holding emulsion provided on the inner side of the outer shell. A stirring mechanism for stirring the emulsion in the inner tank is installed on the cover. The inner tank includes an outer liner and an inner liner installed inside the outer liner. A water inlet pipe and a water outlet pipe are fixed at the left and right ends of the outer liner, respectively. A drain pipe is fixed at the lower left corner of the inner liner, passing through the outer liner and the outer shell in sequence to the left. A gap is left between the outer side of the inner liner and the inner side wall of the outer liner for cold water to flow through. A dispersion chamber for sending cold water to the gap and a water collection chamber for collecting water in the gap are respectively provided between the left and right ends of the inner liner and the left and right side walls of the outer liner.

[0009] The gap between the outer side of the inner liner and the inner side wall of the outer liner is evenly divided into multiple cooling channels through which cold water flows evenly.

[0010] As a preferred embodiment, a heat exchanger is provided inside the dispersion chamber, and a refrigeration unit is connected to the heat exchanger, which supplies refrigerant to the heat exchanger.

[0011] As a preferred option, multiple evenly distributed locking plates are fixed to the front and rear edges of the upper port of the outer liner. The locking plates have through holes, and the outer liner is fixedly connected to the inner liner by the locking plates and screws.

[0012] As a preferred embodiment, a sealing plate is fixed near the upper port of the inner liner, and a protrusion that is locked inside the upper port of the outer liner is fixed on the lower side of the sealing plate.

[0013] Multiple evenly distributed connecting plates are fixed on both the front and rear sides of the sealing plate. The connecting plates have threaded holes, and the connecting plates and the locking plate are fixedly connected by screws.

[0014] As a preferred embodiment, multiple evenly distributed heat-conducting fins are fixed on the outer side of the inner liner, and the cooling channel is formed by the gap between two heat-conducting fins.

[0015] As a preferred embodiment, the heat exchanger includes heat exchange tubes through which the refrigerant flows, with an inlet pipe and an outlet pipe connected to both ends of the heat exchange tubes, respectively.

[0016] Multiple fins are fixed on the outside of the heat exchange tube, and multiple water passage holes are opened on the fins for water supply.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] The pasteurization tank cooling mechanism provided by this utility model, by setting a gap between the inner and outer tanks and evenly dividing multiple cooling channels within the gap, allows cold water to flow evenly over a large area across the outer wall of the inner tank, achieving rapid cooling of the emulsion and greatly improving the cooling efficiency of the inner tank and the emulsion inside. The uniform distribution of cooling channels avoids the problem of localized overheating or insufficient cooling of the emulsion caused by uneven cooling in traditional devices, thus improving the processing quality of the emulsion.

[0019] The design of the dispersion chamber and water collection chamber effectively guides cold water to enter and exit the gaps evenly, while ensuring the stability of the cooling water's flow path throughout the cooling process. The heat exchanger within the dispersion chamber pre-cools the cooling water with refrigerant, further reducing its temperature to meet even lower cooling requirements. Compared to traditional technologies relying on natural cooling with cold water, this invention achieves a more efficient cooling effect, adapting to the low-temperature processing requirements in dairy processing.

[0020] The heat-conducting fins fixed to the outside of the inner tank form a cooling channel, which can quickly transfer heat from inside the inner tank to the cold water in the cooling channel, significantly improving heat exchange efficiency. The combined design of the cooling channel and the heat-conducting fins not only expands the heat exchange area but also optimizes the cooling path, solving the problem of low heat conduction efficiency in traditional devices, thereby greatly improving the cooling speed and effect.

[0021] The outer and inner liner are connected by screws between the locking plate and the connecting plate, ensuring the structural stability and sealing of the device. The design of the sealing plate and its boss further enhances the sealing performance of the device, preventing emulsion leakage during processing, while ensuring the airtightness of the cooling water flow area, thus improving the overall reliability of the device.

[0022] The heat exchange tubes and their external fins in the heat exchanger achieve efficient heat exchange through the refrigerant, and the water passages on the fins ensure sufficient flow of cooling water, effectively solving the problem of low refrigeration efficiency in traditional devices. The combined design of the heat exchanger and the dispersion chamber not only improves the cooling effect of the cooling water but also ensures the continuity and stability of the entire cooling system, providing an efficient and reliable cooling solution for dairy processing. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the inner tank of this utility model;

[0025] Figure 3 This is a schematic diagram of the outer shell of this utility model;

[0026] Figure 4 This is a schematic diagram of the inner liner of this utility model;

[0027] Figure 5 This is a schematic diagram of the heat exchanger of this utility model.

[0028] In the diagram: 1. Outer shell; 2. Inner tank; 21. Drain pipe; 22. Water inlet pipe; 23. Outer liner; 231. Locking plate; 24. Heat exchanger; 241. Air inlet pipe; 242. Air outlet pipe; 243. Fins; 244. Heat exchange tube; 245. Water passage hole; 25. Inner liner; 251. Connecting plate; 252. Sealing plate; 253. Heat-conducting fins; 26. Water outlet pipe; 27. Water collection chamber; 28. Dispersion chamber; 29. ​​Cooling channel; 3. Cover; 4. Stirring mechanism. Detailed Implementation

[0029] like Figure 1 and Figure 2As shown, a pasteurization tank cooling mechanism includes an outer shell 1; a rotatable cover 3 is installed on the upper side of the outer shell 1, which allows operators to easily add liquid or perform maintenance on the inner tank 2; an inner tank 2 for holding emulsion is provided inside the outer shell 1, the inner tank 2 including an outer liner 23 for providing heat insulation and an inner liner 25 installed inside the outer liner 23 for direct contact with the emulsion; a stirring mechanism 4 is installed on the cover 3 for uniformly stirring the emulsion in the inner tank 2, which can effectively prevent uneven temperature distribution of the emulsion due to stillness during the cooling process; an inlet pipe 22 and an outlet pipe 26 are fixed to the left and right ends of the outer liner 23, respectively, the inlet pipe 22 for introducing water... Cold water flows into the dispersion chamber 28, and the outlet pipe 26 is used to discharge the water after heat absorption. A drain pipe 21 is fixed at the lower left corner of the inner tank 25, which runs from left to right through the outer tank 23 and the outer shell 1. The drain pipe 21 can discharge the emulsion in the inner tank 2 after the operation is completed. A gap is left between the outer side of the inner tank 25 and the inner side wall of the outer tank 23 for cold water to flow through. The gap can make full use of the flow of cold water to absorb heat and cool the inner tank 25 over a large area. The left and right ends of the inner tank 25 and the left and right side walls of the outer tank 23 are respectively provided with a dispersion chamber 28 to send cold water to the gap and a water collection chamber 27 to collect the water in the gap. The setting of the dispersion chamber 28 and the water collection chamber 27 ensures that the flow path of cold water is uniform and smooth.

[0030] like Figure 2 As shown, the gap between the outer side of the inner liner 25 and the inner sidewall of the outer liner 23 is evenly divided into multiple cooling channels 29 through which cold water flows evenly. The design of the cooling channels 29 can maximize the contact area between the cold water and the inner liner 25 and improve the cooling efficiency. Each cooling channel 29 is evenly distributed to ensure that the inner liner 25 is cooled evenly during the cooling process, thereby avoiding the problem of local overheating or insufficient cooling of the emulsion.

[0031] like Figure 2 As shown, a heat exchanger 24 is provided inside the dispersion chamber 28. The heat exchanger 24 is connected to a refrigeration unit. The refrigeration unit provides refrigerant to enable the heat exchanger 24 to quickly cool the water in the dispersion chamber 28. The heat exchanger 24 can meet the cooling requirements of lower temperatures, ensuring that the emulsion is rapidly cooled during processing, thereby improving the processing quality of dairy products.

[0032] like Figure 3 As shown, multiple evenly distributed locking plates 231 are fixed on the front and rear edges of the upper port of the outer liner 23. The locking plates 231 are used to firmly connect the outer liner 23 and the inner liner 25 with screws. The locking plates 231 are provided with through holes, which allow the screws to pass through accurately and achieve a stable connection, ensuring the sealing and structural stability between the outer liner 23 and the inner liner 25.

[0033] like Figure 4As shown, a sealing plate 252 is fixed near the upper port of the inner liner 25, providing sealing protection for the inner tank 2; a boss is fixed on the lower side of the sealing plate 252, which is snapped into the upper port of the outer liner 23, enabling precise positioning and stable connection; multiple evenly distributed connecting plates 251 are fixed on both the front and rear sides of the sealing plate 252, and the connecting plates 251 are fixedly connected to the locking plate 231 through threaded holes and screws, thereby ensuring the reliability of the overall device.

[0034] like Figure 4 As shown, multiple evenly distributed heat-conducting fins 253 are fixed on the outer side of the inner liner 25. The heat-conducting fins 253 are used to quickly transfer the heat of the inner liner 25 to the cold water in the cooling channel 29. The cooling channel 29 is formed by the gap between two heat-conducting fins 253. The design of the cooling channel 29 can ensure that the cold water flows evenly through every area on the outside of the inner liner 25, thereby achieving a highly efficient cooling effect.

[0035] like Figure 5 As shown, the heat exchanger 24 includes a heat exchange tube 244 through which refrigerant flows. An inlet pipe 241 and an outlet pipe 242 are connected to both ends of the heat exchange tube 244, respectively. The inlet pipe 241 is used to supply refrigerant to the heat exchange tube 244, and the outlet pipe 242 is used to discharge the refrigerant after heat exchange. Multiple fins 243 are fixed to the outer side of the heat exchange tube 244. The fins 243 are used to expand the heat exchange area and accelerate the heat exchange efficiency. Multiple water passage holes 245 are provided on the fins 243 to ensure that cooling water can flow fully through the fins 243, thereby achieving rapid cooling of the water in the dispersion chamber 28 and improving the overall performance of the cooling mechanism.

[0036] In this embodiment, when rapidly cooling the sterilized emulsion, cold water from the outside is introduced into the dispersion chamber 28 through the water inlet pipe 22. The cold water in the dispersion chamber 28 absorbs heat and cools the inner liner 25 as it flows through the gap between the outer side of the inner liner 25 and the inner side wall of the outer liner 23, thereby completing the cooling of the emulsion in the inner liner 25. The water that has absorbed heat then enters the water collection chamber 27 and is discharged outward through the water outlet pipe 26.

[0037] When cold water flows through the gap between the outer side of the inner liner 25 and the inner side wall of the outer liner 23, it is evenly distributed by multiple cooling channels 29. The evenly distributed cold water absorbs heat from the inner liner 25 over a large area. At the same time, the heat-conducting plates 253 on both sides of the cooling channels quickly transfer the heat from the inner liner 25 to the cold water, thereby completing a large-area rapid cooling.

[0038] When a very low temperature is required, the refrigerator transfers the cooling capacity to the heat exchange tube 244 through the refrigerant. The heat exchange tube 244 then rapidly exchanges heat through the fins 243 and cools the water in the dispersion chamber 28, thereby achieving a lower temperature.

[0039] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.

Claims

1. A pasteurization tank cooling mechanism, comprising a shell (1), a rotatable cover (3) mounted on the upper side of the shell (1), and an inner tank (2) for holding emulsion disposed on the inner side of the shell (1), wherein a stirring mechanism (4) for stirring the emulsion in the inner tank (2) is mounted on the cover (3), characterized in that: The inner tank (2) includes an outer liner (23) and an inner liner (25) installed inside the outer liner (23). The left and right ends of the outer liner (23) are respectively fixed with an inlet pipe (22) and an outlet pipe (26). The lower left corner of the inner liner (25) is fixed with a drain pipe (21) that passes through the outer liner (23) and the outer shell (1) in sequence to the left. A gap is left between the outer side of the inner liner (25) and the inner side wall of the outer liner (23) for cold water to flow through. The left and right ends of the inner liner (25) and the left and right side walls inside the outer liner (23) are respectively provided with a dispersion chamber (28) for sending cold water to the gap and a water collection chamber (27) for collecting water in the gap. The gap between the outer side of the inner liner (25) and the inner sidewall of the outer liner (23) is evenly divided into multiple cooling channels (29) through which cold water is evenly dispersed.

2. The pasteurization tank cooling mechanism according to claim 1, characterized in that: A heat exchanger (24) is provided inside the dispersion chamber (28), and a refrigerator is connected to the heat exchanger (24). The refrigerator provides refrigerant to the heat exchanger (24).

3. The pasteurization tank cooling mechanism according to claim 1, characterized in that: Multiple evenly distributed locking plates (231) are fixed on the front and rear edges of the upper port of the outer liner (23). The locking plates (231) have through holes. The outer liner (23) is fixedly connected to the inner liner (25) by the locking plates (231) and screws.

4. The pasteurization tank cooling mechanism according to claim 3, characterized in that: The inner liner (25) is fixed with a sealing plate (252) near the upper port, and the lower side of the sealing plate (252) is fixed with a protrusion that is stuck in the upper port of the outer liner (23); Multiple evenly distributed connecting plates (251) are fixed on both the front and rear sides of the sealing plate (252). The connecting plates (251) are provided with threaded holes. The connecting plates (251) and the locking plate (231) are fixedly connected by screws.

5. The pasteurization tank cooling mechanism according to claim 4, characterized in that: The outer side of the inner liner (25) is fixed with a plurality of uniformly distributed heat-conducting fins (253), and the cooling channel (29) is formed by the gap between two heat-conducting fins (253).

6. The pasteurization tank cooling mechanism according to claim 2, characterized in that: The heat exchanger (24) includes a heat exchange tube (244) through which the refrigerant flows, and the two ends of the heat exchange tube (244) are respectively connected to an inlet pipe (241) and an outlet pipe (242); Multiple fins (243) are fixed on the outside of the heat exchange tube (244), and multiple water passage holes (245) for water supply are opened on the fins (243).

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