A milk source pasteurisation apparatus for an infant milk

Abstract

The utility model discloses a technical field of milk source sterilization, a kind of milk source pasteurization equipment of infant milk product, including pasteurization tank and outer heat exchange tube, the inner chamber of pasteurization tank is provided with heat exchange mechanism, heat exchange mechanism includes spiral heat exchange tube, electric control three-way valve, first pump, inlet pipe and outlet pipe, spiral heat exchange tube is installed in the inner chamber of pasteurization tank, the upper wall and lateral wall of pasteurization tank are inserted and installed with electric control three-way valve, two electric control three-way valves are electrically connected with external controller, the both ends of spiral heat exchange tube are connected with two electric control three-way valves respectively, the design of the device through spiral heat exchange tube, increase heat exchange area, improve heat exchange efficiency, while in the process of heating milk source, milk source can be continuously circulated in spiral heat exchange tube under the driving of first pump, avoid the problem that milk is excessively heated or heating is insufficient due to long time in a position, so that milk source can be heated quickly and evenly, ensure pasteurization effect.

Description

Technical Field

[0001] This utility model relates to the field of milk source sterilization technology, specifically to a pasteurization device for infant formula milk sources. Background Technology

[0002] In the process of infant formula production, the sterilization of milk source is crucial. Pasteurization is a commonly used and effective sterilization method that can effectively kill harmful microorganisms while preserving the nutrients and flavor substances in the milk source to the greatest extent. In a fresh milk pasteurization device proposed in publication number CN207754458U, the internal milk source is heated by conduction through a hollow stirring paddle. However, the stirring paddle structure is at a fixed angle, which may form a stirring blind zone at the edge or bottom of the tank, resulting in uneven heating of the fresh milk. Utility Model Content

[0003] The purpose of this invention is to provide a pasteurization device for infant formula milk sources to solve the problem of uneven heating of milk sources mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a pasteurization device for infant formula milk sources, comprising a pasteurization tank and an external heat exchange tube. The pasteurization tank has an internal heat exchange mechanism, which includes a spiral heat exchange tube, an electrically controlled three-way valve, a first pump, an inlet pipe, and an outlet pipe. The spiral heat exchange tube is installed within the pasteurization tank. Electrically controlled three-way valves are inserted into both the upper and side walls of the pasteurization tank. Both of the two electrically controlled three-way valves are electrically connected to an external controller. The two ends of the spiral heat exchange tube are respectively connected to the two electrically controlled three-way valves. A first pump is installed on the upper wall of the pasteurization tank. The first pump is electrically connected to an external power source. The input end and inlet pipe of the first pump are connected to the electrically controlled three-way valve located on the upper side. The output end and outlet pipe of the first pump are connected to the electrically controlled three-way valve located on the side side.

[0005] As a preferred embodiment of this utility model, it further includes a preliminary heating tank, which is installed on the lower wall of the pasteurization tank. The outlet pipe passes through one end of the upper wall of the preliminary heating tank and is equipped with one end of a serpentine heat exchange tube. The other end of the serpentine heat exchange tube is equipped with a drain pipe. The drain pipe passes through the side wall of the other end of the preliminary heating tank and is connected to an external cooling device. A milk supply pipe is installed on the side wall of the preliminary heating tank and is connected to the inner cavity of the preliminary heating tank. A second pump is installed on the upper wall of the preliminary heating tank. The input end of the second pump is connected to the inner cavity of the preliminary heating tank, and the output end of the second pump is connected to the inlet pipe.

[0006] As a preferred embodiment of this invention, an electric heating ring is installed on the outer wall of the pasteurization tank, the electric heating ring is electrically connected to an external controller, and the pasteurization tank is filled with a heat exchange medium.

[0007] As a preferred embodiment of this invention, temperature sensors are installed at both the output end of the first pump and the upper wall of the pasteurization tank, and the temperature sensors are electrically connected to an external controller.

[0008] As a preferred embodiment of this invention, a heat insulation cover is fitted onto the outer side of the electric heating ring.

[0009] As a preferred embodiment of this invention, a heat-insulating sealing layer is provided between the pasteurization tank and the preliminary heating tank, and the heat-insulating sealing layer is made of ceramic fiber material.

[0010] Compared with the prior art, the beneficial effects of this utility model are: This device, through the design of spiral heat exchange tubes, greatly increases the heat exchange area and improves the heat exchange efficiency. At the same time, during the heating process of the milk source, the milk source can continuously circulate in the spiral heat exchange tubes driven by the first pump, avoiding the problem of overheating or underheating of the milk due to the milk being in one position for a long time. This allows the milk source to be heated quickly and evenly, ensuring the pasteurization effect. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this patent; Figure 2 This is a schematic diagram of the cross-sectional structure of this patent; Figure 3 This is a schematic diagram of the serpentine heat exchanger tube structure of this patent.

[0012] In the diagram: 1 Pasteurization tank, 2 Heat exchange mechanism, 21 Spiral heat exchange tube, 22 Electrically controlled three-way valve, 23 First pump, 24 Inlet pipe, 25 Outlet pipe, 3 Preliminary heating tank, 4 Serpentine heat exchange tube, 5 Drain pipe, 6 Milk supply pipe, 7 Second pump, 8 Electric heating ring, 9 Temperature sensor, 10 Heat insulation cover, 11 Heat insulation sealing layer. Detailed Implementation

[0013] 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.

[0014] Please see Figure 1-3 This utility model provides a technical solution: In this technical solution, a pasteurization device for infant formula milk sources includes a pasteurization tank 1. The inner cavity of the pasteurization tank 1 is provided with a heat exchange mechanism 2. The heat exchange mechanism 2 includes a spiral heat exchange tube 21, an electrically controlled three-way valve 22, a first pump 23, an inlet pipe 24, and an outlet pipe 25. The spiral heat exchange tube 21 is installed in the inner cavity of the pasteurization tank 1. The upper wall and side wall of the pasteurization tank 1 are both fitted with electrically controlled three-way valves 22. Both electrically controlled three-way valves 22 are electrically connected to an external controller. The two ends of the spiral heat exchange tube 21 are respectively connected to the two electrically controlled three-way valves 22. The upper wall of the pasteurization tank 1 is fitted with a first pump 23. The first pump 23 is electrically connected to an external power source. The input end and the inlet pipe 24 of the first pump 23 are connected to the electrically controlled three-way valve 22 located on the upper side. The output end and the outlet pipe 25 of the first pump 23 are connected to the electrically controlled three-way valve 22 located on the side. In this technical solution, the spiral heat exchange tube 21 is spirally distributed inside the pasteurization tank 1, increasing the contact area with the heat exchange medium inside the tank and improving the heat exchange efficiency. During use, the milk source in the preheating tank 3 is first pumped into the spiral heat exchange tube 21 through the inlet pipe 24 by the second pump 7. After the spiral heat exchange tube 21 is full, the upper electric three-way valve 22 closes the inlet pipe 24. At this time, the first pump 23 and the spiral heat exchange tube 21 form a closed loop. After the first pump 23 is started, it can drive the milk source to circulate continuously in the spiral heat exchange tube 21, thereby ensuring the stability and uniformity of the temperature during the pasteurization process. This ensures that the milk source is sterilized at a suitable temperature, effectively killing harmful microorganisms while preserving the nutritional components of the milk source to the greatest extent.

[0015] In some technical solutions, a preliminary heating tank 3 is also included. The preliminary heating tank 3 is installed on the lower wall of the pasteurization tank 1. The liquid outlet pipe 25 passes through one end of the upper wall of the preliminary heating tank 3 and is connected to one end of the serpentine heat exchange tube 4. The other end of the serpentine heat exchange tube 4 is connected to the drain pipe 5. The drain pipe 5 passes through the side wall of the other end of the preliminary heating tank 3 and is connected to the external cooling equipment. The side wall of the preliminary heating tank 3 is connected to the milk supply pipe 6 and is connected to the inner cavity of the preliminary heating tank 3. The upper wall of the preliminary heating tank 3 is connected to the second pump 7. The input end of the second pump 7 is connected to the inner cavity of the preliminary heating tank 3, and the output end of the second pump 7 is connected to the liquid inlet pipe 24.

[0016] In this technical solution, the setting of the preliminary heating tank 3 realizes the preheating function of the milk source, which can significantly reduce the heating time of the milk source and improve work efficiency. The liquid outlet pipe 25 passes through the serpentine heat exchange tube 4 installed on the upper wall of one end of the preliminary heating tank 3. After the milk source in the spiral heat exchange tube 21 is sterilized, the side electric three-way valve 22 closes one end of the spiral heat exchange tube 21. At this time, the first pump 23 will discharge the heated milk source into the serpentine heat exchange tube 4 through the liquid outlet pipe 25, and use the residual heat of the milk source to preheat the milk source in the preliminary heating tank 3. The serpentine structure further increases the heat exchange area and improves the preheating effect. The drain pipe 5 runs through the side wall of the other end of the preheating tank 3 and is connected to the external cooling equipment, which facilitates the discharge of the heat-exchanged milk source for cooling. The milk source supply pipe 6 is used to transport the milk source into the preheating tank 3. The second pump 7 transports the preheated milk source through the inlet pipe 24 to the spiral heat exchange pipe 21 in the pasteurization tank 1 for the next step of pasteurization. This structure not only improves energy efficiency and reduces energy consumption, but also shortens the pasteurization time and improves overall sterilization efficiency by preheating the milk source to be closer to the target sterilization temperature when it enters the pasteurization tank 1.

[0017] In some technical solutions, an electric heating ring 8 is installed on the outer wall of the pasteurization tank 1. The electric heating ring 8 is electrically connected to an external controller, and the pasteurization tank 1 is filled with a heat exchange medium.

[0018] In this technical solution, the electric heating ring 8 is electrically connected to an external controller and can perform heating according to the instructions of the external controller. When the temperature of the heat exchange medium in the pasteurization tank 1 is insufficient, the electric heating ring 8 is activated to heat the tank wall, thereby transferring the heat to the heat exchange medium in the tank, raising the temperature of the heat exchange medium, and providing a stable heat source for the pasteurization of milk.

[0019] In some technical solutions, temperature sensors 9 are installed at the output end of the first pump 23 and on the upper wall of the pasteurization tank 1, and the temperature sensors 9 are electrically connected to an external controller.

[0020] In this technical solution, the output end of the first pump 23 and the temperature sensor 9 installed on the upper wall of the pasteurization tank 1 can monitor the temperature of the heat exchange fluid flowing out of the spiral heat exchange tube 21 and the temperature of the milk source in the pasteurization tank 1 in real time. The temperature sensor 9 transmits the monitored temperature data to the external controller in real time, and the external controller analyzes and judges according to the preset temperature parameters. By cooperating with the temperature sensor 9, the external controller and the electric heating ring 8, the heat exchange medium in the pasteurization tank 1 can be maintained at the specified pasteurization temperature, such as 75°C. When the temperature deviates, the external controller will adjust the heating state of the electric heating ring 8 in time to ensure that the internal temperature is stable. The temperature sensor 9 on the output end of the first pump 23 can monitor the temperature of the milk source in the tube in real time. When the milk source reaches 75°C and is maintained for 15 seconds, the external controller controls the side-mounted electric three-way valve 22 to switch and discharge the milk source in the spiral heat exchange tube 21.

[0021] In some technical solutions, a heat insulation cover 10 is fitted onto the outside of the electric heating ring 8.

[0022] In this technical solution, the heat insulation cover 10 is fitted onto the outside of the electric heating ring 8, which can effectively prevent the heat generated by the electric heating ring 8 from dissipating to the outside, reduce heat loss, and improve energy utilization efficiency. At the same time, the heat insulation cover 10 can also prevent operators from accidentally coming into contact with the high-temperature electric heating ring 8, prevent burns, and ensure the personal safety of operators.

[0023] In some technical solutions, a heat insulation sealing layer 11 is provided between the pasteurization tank 1 and the preliminary heating tank 3, and the heat insulation sealing layer 11 is made of ceramic fiber material.

[0024] In this technical solution, the heat-insulating sealing layer 11 between the pasteurization tank 1 and the preliminary heating tank 3 is made of ceramic fiber material. Ceramic fiber material has excellent heat insulation properties, which can effectively block heat transfer between the pasteurization tank 1 and the preliminary heating tank 3, prevent heat from the pasteurization tank 1 from being transferred to the preliminary heating tank 3, avoid interference with the milk source temperature in the preliminary heating tank 3, and ensure that the two tanks can operate independently and stably.

[0025] All materials that come into contact with milk must be food-grade certified to prevent the migration of harmful substances such as heavy metals and plasticizers. The surface is smooth and without dead corners, supporting high-temperature steam sterilization above 121℃ or chemical disinfection, such as citric acid solution; It adapts to the temperature and pH of pasteurization (milk source pH is about 6.5-7.0) and the needs of long-term cyclic use, avoiding material aging or corrosion; By selecting and designing the above materials, we can effectively avoid equipment contamination of milk sources and meet the high hygiene standards for infant formula.

[0026] Working principle: After the electric heating ring 8 heats the heat exchange medium in the pasteurization tank 1 to the specified temperature, the milk source waiting to be sterilized enters the preliminary heating tank 3 through the milk source supply pipe 6. First, the milk source in the preliminary heating tank 3 is pumped into the spiral heat exchange tube 21 through the liquid inlet pipe 24 by the second pump 7. After the spiral heat exchange tube 21 is full, the external controller controls the upper electric three-way valve 22 to close the liquid inlet pipe 24. At this time, the first pump 23 and the spiral heat exchange tube 21 form a closed loop. The first pump 23 starts, driving the milk source to continuously circulate in the spiral heat exchange tube 21. When the temperature sensor 9 on the output end of the first pump 23 detects that the temperature of the milk source in the tube reaches 75°C and is maintained for 15 seconds, the external controller controls the side-mounted three-way valve 22 to switch and close one end of the spiral heat exchange tube 21. At this time, the first pump 23 will discharge the heated milk source into the serpentine heat exchange tube 4 through the liquid outlet pipe 25, and use the residual heat of the milk source to preheat the milk source in the preheating tank 3. Once the sterilized milk is discharged through drain pipe 5, the above operation can be repeated for the next cycle.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pasteurization device for infant formula milk sources, comprising a pasteurization tank (1), characterized in that: The pasteurization tank (1) has a heat exchange mechanism (2) installed in its inner cavity. The heat exchange mechanism (2) includes a spiral heat exchange tube (21), an electrically controlled three-way valve (22), a first pump (23), an inlet pipe (24), and an outlet pipe (25). The spiral heat exchange tube (21) is installed in the inner cavity of the pasteurization tank (1). Electrically controlled three-way valves (22) are inserted and installed on the upper wall and side wall of the pasteurization tank (1). Both of the electrically controlled three-way valves (22) are electrically connected to an external controller. The spiral heat exchange tube (21) is connected to two electrically controlled three-way valves (22) at both ends. A first pump (23) is installed on the upper wall of the pasteurization tank (1). The first pump (23) is electrically connected to an external power source. The input end and the liquid inlet pipe (24) of the first pump (23) are connected to the electrically controlled three-way valve (22) located above. The output end and the liquid outlet pipe (25) of the first pump (23) are connected to the electrically controlled three-way valve (22) located on the side.

2. The pasteurization equipment for infant formula milk source according to claim 1, characterized in that: It also includes a preliminary heating tank (3), which is installed on the lower wall of the pasteurization tank (1). The outlet pipe (25) passes through the upper wall of one end of the preliminary heating tank (3) and is equipped with one end of a serpentine heat exchange tube (4). The other end of the serpentine heat exchange tube (4) is equipped with a drain pipe (5). The drain pipe (5) passes through the side wall of the other end of the preliminary heating tank (3) and is connected to an external cooling device. The side wall of the preliminary heating tank (3) is equipped with a milk supply pipe (6), which is connected to the inner cavity of the preliminary heating tank (3). The upper wall of the preliminary heating tank (3) is equipped with a second pump (7), the input end of which is connected to the inner cavity of the preliminary heating tank (3), and the output end of which is connected to the inlet pipe (24).

3. The pasteurization equipment for infant formula milk source according to claim 1, characterized in that: The pasteurization tank (1) is equipped with an electric heating ring (8) on its outer wall. The electric heating ring (8) is electrically connected to an external controller. The pasteurization tank (1) is filled with a heat exchange medium.

4. The pasteurization equipment for infant formula milk source according to claim 1, characterized in that: Temperature sensors (9) are installed at the output end of the first pump (23) and on the upper wall of the pasteurization tank (1), and the temperature sensors (9) are electrically connected to an external controller.

5. The pasteurization equipment for infant formula milk source according to claim 3, characterized in that: A heat insulation cover (10) is fitted onto the outside of the electric heating ring (8).

6. The pasteurization equipment for infant formula milk source according to claim 1, characterized in that: A heat-insulating sealing layer (11) is provided between the pasteurization tank (1) and the preheating tank (3), and the heat-insulating sealing layer (11) is made of ceramic fiber material.

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