A dairy product cooling device

Abstract

This utility model belongs to the field of dairy processing technology, specifically a dairy product cooling device, including a support base on which a tank is mounted. An annular cooling chamber is provided inside the tank. A hollow rotating shaft is rotatably mounted inside the tank, and multiple hollow stirring tubes are connected to the hollow rotating shaft. Supports are rotatably mounted at both the top and bottom of the hollow rotating shaft, and four rotating rods are rotatably mounted on the two supports. When cooling dairy products, this utility model not only externally cools the dairy products inside the tank through the annular cooling chamber, but also directly acts on the interior of the dairy products through the hollow rotating shaft and hollow stirring tubes. This combined internal and external cooling method can quickly reduce the temperature of the dairy products. Compared with single external wrapping cooling, the cooling effect and efficiency are higher, while ensuring that all parts of the dairy products are fully cooled, avoiding product quality problems caused by uneven cooling.

Description

Technical Field

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

[0002] Dairy products are made from raw cow's milk or sheep's milk and their products. During the processing of dairy products, cooling treatment is required, which can effectively inhibit the growth of residual microorganisms and extend the shelf life.

[0003] Chinese patent CN219797646U discloses a cooling device for dairy processing, comprising a main body with a support plate at its lower end. Support columns are symmetrically mounted on the lower end of the support plate. A water tank is mounted on the left side of the upper end of the support plate, and a cooling barrel is mounted on the right side. A first motor is mounted on the upper end of the cooling barrel, with its output end penetrating the interior of the cooling barrel and connected to a first rotating rod. The internal seal of the barrel prevents dust and debris from entering during operation. Simultaneously, a cooling fan, utilizing an exhaust fan principle, stirs the air through two sets of internal stirring devices in opposite directions, allowing for rapid expulsion of hot air. Combined with the injection of water into the empty tank, this further accelerates the cooling of the dairy products.

[0004] The aforementioned cooling device for dairy processing only employs a single external encapsulation cooling method, i.e., cooling the dairy products inside the tank only through a cooling jacket. This method has low heat exchange efficiency and slow cooling speed, and cannot quickly reduce the temperature of the dairy products. During the cooling process, the external cooling speed of the dairy products is faster than the internal cooling speed, which can easily lead to local overheating or undercooling. This uneven cooling phenomenon will affect the quality and taste of the dairy products, and may even lead to product spoilage. Therefore, a dairy product cooling device is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve the problems mentioned in the background art, this utility model proposes a dairy product cooling device.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A dairy product cooling device of this utility model includes a support base, on which a tank is mounted. An annular cooling chamber is provided inside the tank. A hollow rotating shaft is rotatably mounted inside the tank. Multiple hollow stirring tubes are connected to the hollow rotating shaft. Supports are rotatably mounted at both the top and bottom ends of the hollow rotating shaft. Four rotating rods are rotatably mounted on the two supports. Multiple stirring rods are fixed on each rotating rod. A scraper is mounted on every two stirring rods. A large gear is fitted at the top of the hollow rotating shaft, and a small gear is fitted at the top of each rotating rod, with the large and small gears meshing with each other. A driven gear is fitted at the bottom end of the hollow rotating shaft. A motor is mounted on the bottom side of the support base, and a driving gear is installed at the output end of the motor, with the driving gear meshing with the driven gear. The support base has a control panel installed on its side wall. This control panel is used to control the start and stop of the motor and water pump. During the cooling process of dairy products, the motor is started, causing the drive gear to rotate, which in turn causes the hollow shaft to rotate the hollow stirring tube and the large gear. This forces the small gear to rotate the rotating rod, the second stirring rod, and the scraper. The hollow stirring tube and the second stirring rod rotate in opposite directions. This counter-rotation of the hollow stirring tube and the second stirring rod creates a complex flow pattern in the tank, enhancing the heat exchange between the dairy products and the cooling water, and further improving the cooling speed. At the same time, multi-directional stirring can quickly distribute the heat in the dairy products throughout the tank, avoiding local overheating or undercooling. This uniform heat distribution helps ensure the consistency of the cooling process and avoids product quality problems caused by uneven cooling.

[0007] Preferably, a protective cover is installed on the top side of the tank, and both the driving gear and the driven gear are located inside the protective cover. When using the device, the protective cover can prevent workers from accidentally touching the teeth and causing mechanical injury, and can also prevent foreign objects from entering the protective cover, ensuring the normal operation of the gear transmission system.

[0008] Preferably, a cold water tank is provided on the support base, a water injection pipe is connected to the top side of the cold water tank, a water pump is installed at the bottom of the cold water tank, a water pump inlet is connected to a water suction pipe, and the two outlets of the water pump are respectively connected to a first conveying pipe and a second conveying pipe. The other end of the first conveying pipe is connected to an annular cooling chamber, and the other end of the second conveying pipe is rotatably connected to the bottom end of a hollow rotating shaft. A first check valve is installed on the first conveying pipe, and a second check valve is installed on the second conveying pipe. This is for use when cooling dairy products. The water pump is started, allowing cold water from the cold water tank to flow into the annular cooling chamber through the first delivery pipe, and then into the hollow rotating shaft and hollow stirring tube through the second delivery pipe. The cold water not only cools the dairy products inside the tank externally through the annular cooling chamber, but also directly acts on the inside of the dairy products through the hollow rotating shaft and hollow stirring tube. This combined internal and external cooling method can quickly reduce the temperature of the dairy products. Compared with single external wrapping cooling, the cooling effect and efficiency are higher, while ensuring that all parts of the dairy products are fully cooled, avoiding product quality problems caused by uneven cooling.

[0009] Preferably, a return pipe is rotatably connected to the top end of the hollow shaft, and the other end of the return pipe is connected to the cold water tank. A short return pipe is connected to the annular cooling cavity, and the other end of the short return pipe is connected to the return pipe. A cooler is connected to the return pipe, and the cooler is fixed to the outer wall of the tank. After cooling is completed, the cooling water in the annular cooling cavity and the cooling water in the hollow shaft flow back into the cold water tank through the return pipe. During the return process, the temperature of the return cold water can be reduced by the action of the cooler, ensuring that the cold water flowing into the cold water tank always maintains a low temperature, which facilitates the subsequent continuous and efficient cooling cycle effect. At the same time, water resources are recycled, saving a lot of water resources.

[0010] Preferably, the top of the tank is connected to a feed pipe, the bottom of the tank is connected to a discharge pipe, a valve is installed on the discharge pipe, the top of the tank is connected to an vent pipe, and a cooling fan is installed inside the vent pipe. When using this device, by setting up the discharge pipe, the cooled dairy products can be discharged through the discharge pipe, and by setting up a cooling fan inside the vent pipe, the hot air inside the tank can be quickly discharged, thus accelerating the cooling efficiency.

[0011] The advantages of this utility model are:

[0012] 1. In the cooling process of dairy products, this utility model starts a water pump, which allows cold water in the cold water tank to flow into the annular cooling chamber through the first conveying pipe and into the hollow rotating shaft and hollow stirring tube through the second conveying pipe. The cold water not only cools the dairy products inside the tank externally through the annular cooling chamber, but also directly acts on the inside of the dairy products through the hollow rotating shaft and hollow stirring tube. This combined internal and external cooling method can quickly reduce the temperature of the dairy products. Compared with single external wrapping cooling, the cooling effect and efficiency are higher, while ensuring that all parts of the dairy products are fully cooled, avoiding product quality problems caused by uneven cooling.

[0013] 2. In the cooling process of dairy products, the reverse rotation of the hollow stirring tube and the second stirring rod creates a complex flow pattern in the tank, which enhances the heat exchange between the dairy products and the cooling water and further improves the cooling speed. At the same time, the multi-directional stirring can quickly distribute the heat in the dairy products to the entire tank, avoiding local overheating or overcooling. This uniform heat distribution helps to ensure the consistency of the cooling process and avoid product quality problems caused by uneven cooling.

[0014] 3. After the cooling process is completed, the cooling water in the annular cooling chamber and the cooling water in the hollow rotating shaft flow back into the cold water tank through the return pipe. During the return process, the temperature of the return cold water can be reduced by the action of the refrigeration unit, ensuring that the cold water flowing into the cold water tank always maintains a low temperature, which facilitates the subsequent continuous and efficient cooling cycle effect. At the same time, it realizes the recycling of water resources and saves a lot of water resources. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a first side view of the overall three-dimensional structure of the device;

[0017] Figure 2 This is a schematic diagram of the overall second side view of the three-dimensional structure of the device;

[0018] Figure 3 A cross-sectional three-dimensional structural diagram of the tank and cold water tank;

[0019] Figure 4 This is a schematic diagram showing the overall planar structure of the device;

[0020] Figure 5 This is a three-dimensional cross-sectional view of the tank.

[0021] Figure 6 This is a schematic diagram of the three-dimensional structure of the stirring mechanism;

[0022] Figure 7 This is a schematic diagram of the tank's cross-sectional plan.

[0023] In the diagram: 1. Support base; 2. Tank body; 3. Annular cooling chamber; 4. Hollow rotating shaft; 5. Hollow stirring tube; 6. Bracket; 7. Rotating rod; 8. Stirring rod; 9. Scraper; 10. Large gear; 11. Small gear; 12. Driven gear; 13. Electric motor; 14. Driving gear; 15. Protective cover; 16. Cold water tank; 17. Water pump; 18. Pumping pipe; 19. First conveying pipe; 20. Second conveying pipe; 21. Return pipe; 22. Short return pipe; 23. Refrigerator; 24. Water injection pipe; 25. Feed pipe; 26. Air outlet pipe; 27. Discharge pipe; 28. Control panel. Detailed Implementation

[0024] 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 scope of protection of the present utility model.

[0025] Please see Figure 3-7As shown, a dairy product cooling device includes a support base 1, a tank 2 mounted on the support base 1, an annular cooling chamber 3 inside the tank 2, a hollow shaft 4 rotatably mounted inside the tank 2, multiple hollow stirring tubes 5 connected to the hollow shaft 4, brackets 6 rotatably mounted at both the top and bottom of the hollow shaft 4, four rotating rods 7 rotatably mounted on two brackets 6, multiple stirring rods 8 fixed on each rotating rod 7, and scrapers 9 mounted on every two stirring rods 8, a large gear 10 fitted at the top of the hollow shaft 4, and a small gear 11 fitted at the top of each rotating rod 7, with the large gear 10 and small gear 11 meshing with each other, a driven gear 12 fitted at the bottom of the hollow shaft 4, a motor 13 mounted on the bottom side of the support base 1, a driving gear 14 mounted on the output end of the motor 13, with the driving gear 14 meshing with the driven gear 12, and a control panel 28 mounted on the side wall of the support base 1. 28 is used for starting and stopping the motor 13 and the water pump 17. During operation, in the process of cooling dairy products, the motor 13 is started, causing the drive gear 14 to rotate, which forces the driven gear 12 to drive the hollow shaft 4 to rotate. The hollow shaft 4 drives the hollow stirring tube 5 and the large gear 10 to rotate, which forces the small gear 11 to drive the rotating rod 7, the second stirring rod 8, and the scraper 9 to rotate. The hollow stirring tube 5 and the second stirring rod 8 rotate in opposite directions. Through the opposite rotation of the hollow stirring tube 5 and the second stirring rod 8, the dairy products form a complex flow pattern in the tank 2, which enhances the heat exchange between the dairy products and the cooling water and further improves the cooling speed. At the same time, through multi-directional stirring, the heat in the dairy products can be quickly distributed to the entire tank 2, avoiding local overheating or overcooling. This uniform heat distribution helps to ensure the consistency of the cooling process and avoid product quality problems caused by uneven cooling.

[0026] A protective cover 15 is installed on the top side of the tank body 2, and both the driving gear 14 and the driven gear 12 are located inside the protective cover 15. When the device is in operation, by setting up the protective cover 15, mechanical injuries caused by workers accidentally touching the teeth can be avoided. At the same time, it can prevent foreign objects from entering the protective cover 15 and ensure the normal operation of the gear transmission system.

[0027] Please see Figure 1-4As shown, a cold water tank 16 is installed on the support base 1. A water injection pipe 24 is connected to the top side of the cold water tank 16. A water pump 17 is installed at the bottom of the cold water tank 16. A water pump 18 is connected to the inlet port of the water pump 17. The two outlet ports of the water pump 17 are respectively connected to a first conveying pipe 19 and a second conveying pipe 20. The other end of the first conveying pipe 19 is connected to the annular cooling chamber 3. The other end of the second conveying pipe 20 is rotatably connected to the bottom port of the hollow rotating shaft 4. A first one-way valve is installed on the first conveying pipe 19, and a second one-way valve is installed on the second conveying pipe 20. During operation, when cooling dairy products, the dairy products are first fed into the feed pipe 25. Inside tank 2, water pump 17 is then started, causing cold water in cold water tank 16 to be drawn out through water pumping pipe 18 and flow into annular cooling chamber 3 through first conveying pipe 19, and into hollow rotating shaft 4 and hollow stirring tube 5 through second conveying pipe 20. The cold water not only cools the dairy products inside tank 2 externally through annular cooling chamber 3, but also directly acts on the inside of dairy products through hollow rotating shaft 4 and hollow stirring tube 5. This combined internal and external cooling method can quickly reduce the temperature of dairy products. Compared with single external wrapping cooling, the cooling effect and efficiency are higher, while ensuring that all parts of dairy products are fully cooled, avoiding product quality problems caused by uneven cooling.

[0028] A return pipe 21 is rotatably connected to the top end of the hollow rotating shaft 4, and the other end of the return pipe 21 is connected to the cold water tank 16. A short return pipe 22 is connected to the annular cooling chamber 3, and the other end of the short return pipe 22 is connected to the return pipe 21. A cooler 23 is connected to the return pipe 21, and the cooler 23 is fixed to the outer wall of the tank 2. During operation, after cooling is completed, the cooling water in the annular cooling chamber 3 and the cooling water in the hollow rotating shaft 4 flow back into the cold water tank 16 through the return pipe 21. During the return process, the temperature of the return cold water can be reduced by the action of the cooler 23, ensuring that the cold water flowing into the cold water tank 16 always maintains a low temperature, which facilitates the subsequent continuous and efficient cooling cycle effect. At the same time, the water resources are recycled, saving a lot of water resources.

[0029] Please see Figure 2 As shown, the top of the tank 2 is connected to the feed pipe 25, the bottom of the tank 2 is connected to the discharge pipe 27, the discharge pipe 27 is equipped with a valve, the top of the tank 2 is connected to the vent pipe 26, and a cooling fan is installed inside the vent pipe 26; when the device is in operation, by setting the discharge pipe 27, the cooled dairy products can be discharged through the discharge pipe 27, and by setting the cooling fan inside the vent pipe 26, the hot air inside the tank 2 can be quickly discharged, thus accelerating the cooling efficiency;

[0030] Working Principle: Existing dairy processing cooling devices only employ a single external cooling method, i.e., cooling the dairy products inside tank 2 solely through a cooling jacket. This method has low heat exchange efficiency, slow cooling speed, and cannot quickly reduce the temperature of the dairy products. During the cooling process, the external cooling rate of the dairy products is faster than the internal cooling rate, easily leading to localized overheating or undercooling. This uneven cooling phenomenon affects the quality and taste of the dairy products and may even cause product spoilage. Therefore, a dairy product cooling device is proposed to address the above problems. When cooling dairy products, the dairy products are first fed into tank 2 through the feed pipe 25. Next, the water pump 17 is started, so that the cold water in the cold water tank 16 is drawn out through the water pumping pipe 18 and flows into the annular cooling chamber 3 through the first conveying pipe 19, and into the hollow rotating shaft 4 and hollow stirring tube 5 through the second conveying pipe 20. The cold water not only cools the dairy products in the tank 2 externally through the annular cooling chamber 3, but also directly acts on the inside of the dairy products through the hollow rotating shaft 4 and hollow stirring tube 5. This combination of internal and external cooling can quickly reduce the temperature of the dairy products. Compared with the single external wrapping cooling, the cooling effect and efficiency are higher, while ensuring that all parts of the dairy products are fully cooled, avoiding product quality problems caused by uneven cooling.

[0031] During the cooling process of dairy products, the motor 13 is started, causing the drive gear 14 to rotate, which in turn forces the driven gear 12 to drive the hollow shaft 4 to rotate. The hollow shaft 4 drives the hollow stirring tube 5 and the large gear 10 to rotate, which in turn forces the small gear 11 to drive the rotating rod 7, the second stirring rod 8, and the scraper 9 to rotate. The hollow stirring tube 5 and the second stirring rod 8 rotate in opposite directions. Through the opposite rotation of the hollow stirring tube 5 and the second stirring rod 8, the dairy products form a complex flow pattern in the tank 2, which enhances the heat exchange between the dairy products and the cooling water and further improves the cooling speed. At the same time, through multi-directional stirring, the heat in the dairy products can be quickly distributed throughout the entire tank 2, avoiding local overheating or overcooling. This uniform heat distribution helps to ensure the consistency of the cooling process and avoid product quality problems caused by uneven cooling.

[0032] After cooling is completed, the cooling water in the annular cooling chamber 3 and the cooling water in the hollow rotating shaft 4 flow back into the cold water tank 16 through the return pipe 21. During the return process, the refrigerator 23 (model TEC-200) reduces the temperature of the return cold water, ensuring that the cold water flowing into the cold water tank 16 always maintains a low temperature, which facilitates a continuous and efficient cooling cycle. At the same time, it realizes the recycling of water resources and saves a lot of water resources.

[0033] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] 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 illustrative of the principles of this 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.

Claims

1. A dairy product cooling apparatus, characterised in that: The system includes a support base (1), on which a tank (2) is mounted. An annular cooling chamber (3) is provided inside the tank (2). A hollow rotating shaft (4) is rotatably mounted inside the tank (2). Multiple hollow stirring tubes (5) are connected to the hollow rotating shaft (4). Supports (6) are rotatably mounted at both the top and bottom of the hollow rotating shaft (4). Four rotating rods (7) are rotatably mounted on the two supports (6). Multiple stirring rods (8) are fixed on each rotating rod (7). A scraper (9) is mounted on every two stirring rods (8). A large gear (10) is fitted at the top of the hollow rotating shaft (4), and a small gear (11) is fitted at the top of each rotating rod (7). The large gear (10) and the small gear (11) mesh with each other. The bottom of the hollow rotating shaft (4) is fitted with... There is a driven gear (12), an electric motor (13) is installed on the bottom side of the support base (1), a driving gear (14) is installed at the output end of the electric motor (13), and the driving gear (14) meshes with the driven gear (12). A protective cover (15) is installed on the top side of the tank (2), and the driving gear (14) and the driven gear (12) are both set inside the protective cover (15). A cold water tank (16) is provided on the support base (1), a water injection pipe (24) is connected to the top side of the cold water tank (16), a water pump (17) is installed at the bottom end of the cold water tank (16), a water pump (18) is connected to the input port of the water pump (17), and the two output ports of the water pump (17) are respectively connected to the first conveying pipe (19) and the second conveying pipe (20).

2. A dairy product cooling device according to claim 1, characterised in that: The other end of the first conveying pipe (19) is connected to the annular cooling chamber (3), and the other end of the second conveying pipe (20) is rotatably connected to the bottom end of the hollow rotating shaft (4). The first conveying pipe (19) is equipped with a first one-way valve, and the second conveying pipe (20) is equipped with a second one-way valve.

3. A dairy product cooling device according to claim 1, characterised in that: The top port of the hollow rotating shaft (4) is rotatably connected to a return pipe (21), and the other port of the return pipe (21) is connected to the cold water tank (16). The annular cooling cavity (3) is connected to a short return pipe (22), and the other end of the short return pipe (22) is connected to the return pipe (21).

4. A dairy product cooling apparatus as claimed in claim 3, characterised in that: A cooler (23) is connected to the return pipe (21), and the cooler (23) is fixed to the outer wall of the tank (2).

5. A dairy product cooling device according to claim 1, characterised in that: The top of the tank (2) is connected to a feed pipe (25), the bottom of the tank (2) is connected to a discharge pipe (27), a valve is installed on the discharge pipe (27), the top of the tank (2) is connected to an air outlet pipe (26), and a cooling fan is installed inside the air outlet pipe (26).

6. A dairy product cooling device according to claim 1, characterized in that: A control panel (28) is installed on the side wall of the support base (1), and the control panel (28) is used to control the start and stop of the motor (13) and the water pump (17).

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