Quick-cooling pasteurized milk jacket tank cooling device

By using a mechanical stirring and temperature monitoring system, the problem of uneven cooling in the pasteurized milk jacketed tank cooling device was solved, achieving uniform temperature distribution and efficient cooling of the milk.

CN224246563UActive Publication Date: 2026-05-15JIANGSU JUKUO MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU JUKUO MASCH CO LTD
Filing Date
2025-06-11
Publication Date
2026-05-15

AI Technical Summary

Technical Problem

Existing rapid cooling systems for pasteurized milk jacketed tanks suffer from uneven cooling, resulting in inconsistent internal temperature distribution of the milk, with some areas being under-cooled or over-cooled.

Method used

The system employs a mechanical stirring method, using a stirring rod to agitate the milk inside the tank. Combined with an electric push rod, column, and connecting rod, it ensures stable up-and-down movement of the tank. Simultaneously, a PLC controller and a non-contact temperature sensor are used to achieve real-time temperature monitoring and circulating cooling water.

Benefits of technology

It achieves a uniform temperature distribution in the milk, avoiding localized overheating or undercooling, and improving the uniformity and efficiency of the cooling effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a quick-cooling pasteurized milk jacket tank cooling device, which relates to the technical field of cooling devices, and comprises a main body mechanism, and the top of the main body mechanism is fixedly connected with an auxiliary mechanism; the main body mechanism comprises a bottom plate, an electric push rod is fixedly mounted at the top of the bottom plate, a tank body is fixedly connected to the shaft end of the electric push rod, a jacket body is fixedly connected to the outer wall of the tank body, and a circulating pipeline is arranged on the inner wall of the jacket body. Through the arrangement of a first connecting plate, a first servo motor and a stirring rod, milk in the tank body can be stirred, so that the milk circularly flows in the tank body, and through the cooperation of a sliding rod, a pressure spring, a second connecting plate, a second servo motor, a movable rod and a cam, the milk in the tank body can be uniformly stirred. The first servo motor, the stirring rod and the first connecting plate can move up and down in a reciprocating manner, so that the stirring rod can move up and down in a reciprocating manner, and milk at the top and the bottom of the tank body can be stirred.
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Description

Technical Field

[0001] This utility model relates to the field of cooling device technology, and in particular to a rapid cooling device for pasteurized milk jacketed tanks. Background Technology

[0002] A cooling device is a device or system used to reduce the temperature of an object or medium. It removes heat from the object being cooled through various physical principles and technical means, so that the object being cooled reaches and is maintained at the required low temperature.

[0003] The rapid cooling system for pasteurized milk jacketed tanks is a device specifically designed for the rapid cooling of milk and other dairy products after pasteurization.

[0004] The existing rapid cooling device for pasteurized milk jacketed tanks has the following shortcomings:

[0005] After the sterilization process, milk needs to be rapidly cooled to a suitable storage temperature to extend its shelf life and maintain its best quality and taste. Currently, most production scenarios use jacketed cooling devices. However, in practical applications, existing technologies lack corresponding processing structures, resulting in uneven heat exchange during the cooling process. This situation directly leads to inconsistent internal temperature distribution of the milk, which may cause some areas to be undercooled while others are overcooled. Utility Model Content

[0006] This invention solves the problems mentioned in the background art by using mechanical stirring to ensure the uniformity of the overall cooling effect and avoid local overheating or overcooling.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a rapid cooling device for a pasteurized milk jacketed tank, comprising a main body, with an auxiliary mechanism fixedly connected to the top of the main body; the main body includes a base plate, with an electric push rod fixedly installed on the top of the base plate, a tank body fixedly connected to the shaft end of the electric push rod, a jacket body fixedly connected to the outer wall of the tank body, a circulation pipeline provided on the inner wall of the jacket body, a set of sliding rods fixedly connected to the top of the tank body, a spring sleeved on the outer wall of the sliding rods, a first connecting plate fixedly connected to the shaft end of the sliding rods, a first servo motor fixedly installed on the top of the first connecting plate, and a stirring rod fixedly connected to the output end of the first servo motor. Through the above components, the milk at the top and bottom of the tank can be automatically stirred back and forth, so that the milk temperature is evenly distributed, avoiding local overheating or overcooling.

[0008] Preferably, each of the bottom plates is fixedly connected to a column, and the inner wall of the column is slidably connected to a connecting rod. The top of the connecting rod is fixedly connected to the bottom of the tank. By setting the columns and connecting rods, the stability of the tank during vertical movement can be improved.

[0009] Preferably, a PLC controller is fixedly installed on one side of the outer wall of one of the columns, and self-locking wheels are fixedly installed on the bottom of each base plate. The PLC controller is electrically connected to the components so that the user can control the opening and closing of the components for convenient use. The self-locking wheels make it easy for the user to move the whole unit to any location.

[0010] Preferably, an electromagnetic valve is fixedly connected to the bottom of the tank, and a first non-contact temperature sensor and a second non-contact temperature sensor are fixedly installed at the top and bottom of the tank, respectively. The infrared temperature sensor in the first and second non-contact temperature sensors detects the infrared radiation energy emitted from the surface of the milk tank, thereby achieving real-time monitoring of the temperature of the milk in the tank. The first and second non-contact temperature sensors are alternately arranged, and a total of four are arranged, which is a redundant design to reduce the risk of temperature monitoring failure due to the failure of a single sensor.

[0011] Preferably, the top of the tank is fixedly connected to a first liquid inlet pipe, and a first sealing cap is movably inserted into the inner wall of the first liquid inlet pipe. Through the first liquid inlet pipe, external milk can normally enter the tank.

[0012] Preferably, a set of second connecting plates is fixedly connected to the top of the tank, and a movable rod is movably inserted into the inner wall of the second connecting plate. Through the movable rod, the cam can be rotated normally by the second servo motor.

[0013] Preferably, a second servo motor is fixedly installed on the reverse side of the second connecting plate, and a set of cams is fixedly connected to the outer wall of the movable rod. The outer wall of the cams is slidably connected to the top of the first connecting plate, and the output end of the second servo motor is fixedly connected to one end of the movable rod. Through the second servo motor, the cam can rotate normally and contact the top of the first connecting plate.

[0014] Preferably, the auxiliary mechanism includes a storage box, the top of which is connected to an air-cooled cooler, and the front of the air-cooled cooler is fixedly connected to a first telescopic hose. The interior of the first telescopic hose is connected to a circulation pipeline. Through the first telescopic hose, when the tank moves up and down, its own state is changed by force to avoid interfering with its up and down movement.

[0015] Preferably, a second liquid inlet pipe is fixedly connected to one side of the outer wall of the storage box, and a second sealing cap is movably inserted into the inner wall of the second liquid inlet pipe. By setting the second liquid inlet pipe, the second liquid inlet pipe can be blocked when not in use to prevent foreign objects from falling into it.

[0016] Preferably, a circulation pump is fixedly connected to the reverse side of the storage tank, and a second telescopic hose is fixedly connected to the outlet end of the circulation pump. The interior of the second telescopic hose is connected to the circulation pipeline. Through the circulation pump and the second telescopic hose, the cooling water in the storage tank can be transported to the circulation pipeline.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. In this utility model, the milk in the tank can be stirred by the first connecting plate, the first servo motor and the stirring rod, so that the milk can form a circulation flow in the tank. With the cooperation of the slide rod, the compression spring, the second connecting plate, the second servo motor, the movable rod and the cam, the first servo motor, the stirring rod and the first connecting plate can move up and down back and forth, so that the milk at the top and bottom of the tank can be stirred. Thus, the uniformity of the overall cooling effect can be ensured by mechanical stirring, and local overheating or overcooling can be avoided.

[0019] 2. In this utility model, the electric push rod, column and connecting rod are set to enable the tank to move stably up and down, so that its height can be adjusted to facilitate people of different heights to pour milk into the first liquid inlet pipe. With the cooperation of the second liquid inlet pipe, circulation pipeline, jacket, storage tank, air-cooled cooler, circulation pump, first telescopic hose and second telescopic hose, the cooling water circulation cooling function can be realized. Attached Figure Description

[0020] Figure 1 This utility model provides a perspective view of the main structure of a rapid cooling device for a jacketed tank of pasteurized milk.

[0021] Figure 2 An enlarged perspective view of the structure connecting the storage tank in a rapid cooling device for pasteurized milk jacketed tanks is provided for this utility model.

[0022] Figure 3 An enlarged perspective view of the bottom plate connection structure in a rapid cooling device for a pasteurized milk jacketed tank is provided for this utility model.

[0023] Figure 4 An enlarged perspective view of the tank connection structure in a rapid cooling device for pasteurized milk jacketed tanks is provided for this utility model.

[0024] Figure 5An enlarged perspective view of the structure connecting the stirring rod in a rapid cooling device for a pasteurized milk jacketed tank is provided for this utility model.

[0025] Figure 6 This invention presents an enlarged perspective view of the cam-connected structure in a rapid cooling device for a pasteurized milk jacketed tank.

[0026] Legend: 1. Main structure; 101. Base plate; 102. Column; 103. Electric push rod; 104. PLC controller; 105. Self-locking wheel; 106. Connecting rod; 107. Jacket body; 108. Tank body; 109. First non-contact temperature sensor; 110. Solenoid valve; 111. Circulation pipeline; 112. Stirring rod; 113. Second non-contact temperature sensor; 114. First inlet pipe; 115. First... 116. Sealing cap; 117. Slide rod; 118. Spring; 119. First connecting plate; 120. Second connecting plate; 121. Movable rod; 122. Second servo motor; 123. Cam; 124. First servo motor; 2. Auxiliary mechanism; 201. Storage tank; 202. Circulation pump; 203. Second telescopic hose; 204. First telescopic hose; 205. Air-cooled cooler; 206. Second sealing cap; 207. Second liquid inlet pipe. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0029] Please see Figures 1-6This utility model provides a technical solution: a rapid cooling device for a pasteurized milk jacketed tank, comprising a main body 1, with an auxiliary mechanism 2 fixedly connected to the top of the main body 1; the main body 1 includes a base plate 101, with an electric push rod 103 fixedly installed on the top of the base plate 101, a tank body 108 fixedly connected to the shaft end of the electric push rod 103, a jacket body 107 fixedly connected to the outer wall of the tank body 108, a circulation pipe 111 provided on the inner wall of the jacket body 107, a set of sliding rods 116 fixedly connected to the top of the tank body 108, a spring 117 sleeved on the outer wall of the sliding rods 116, a first connecting plate 118 fixedly connected to the shaft end of the sliding rods 116, a first servo motor 123 fixedly installed on the top of the first connecting plate 118, and a stirring rod 112 fixedly connected to the output end of the first servo motor 123. Through the above components, the milk at the top and bottom of the tank body 108 can be automatically stirred back and forth, so that the milk temperature is evenly distributed and local overheating or overcooling is avoided.

[0030] like Figure 1 and Figure 3 As shown, each of the bottom plates 101 is fixedly connected to a column 102, and a connecting rod 106 is slidably connected to the inner wall of the column 102. The top of the connecting rod 106 is fixedly connected to the bottom of the tank 108. By setting the column 102 and the connecting rod 106, the stability of the tank 108 during vertical movement can be improved.

[0031] like Figure 1 and Figure 3 As shown, a PLC controller 104 is fixedly installed on one side of the outer wall of one of the columns 102, and self-locking wheels 105 are fixedly installed on the bottom of the base plate 101. The PLC controller 104 is electrically connected to the components so that the user can control the opening and closing of the components for convenient use. The self-locking wheels 105 make it easy for the user to move the whole unit to any location.

[0032] like Figure 4 and Figure 5 As shown, a solenoid valve 110 is fixedly connected to the bottom of the tank 108. A first non-contact temperature sensor 109 and a second non-contact temperature sensor 113 are fixedly installed at the top and bottom of the tank 108, respectively. The infrared temperature sensors in the first non-contact temperature sensor 109 and the second non-contact temperature sensor 113 detect the infrared radiation energy emitted from the surface of the milk tank 108, thereby achieving real-time monitoring of the temperature of the milk inside the tank 108. The first non-contact temperature sensor 109 and the second non-contact temperature sensor 113 are arranged alternately, and a total of four are arranged, which is a redundant design to reduce the risk of temperature monitoring failure due to the failure of a single sensor.

[0033] like Figure 5As shown, the top of the tank 108 is fixedly connected to a first liquid inlet pipe 114, and a first sealing cap 115 is movably inserted into the inner wall of the first liquid inlet pipe 114. Through the first liquid inlet pipe 114, external milk can normally enter the tank 108.

[0034] like Figure 5 and Figure 6 As shown, a set of second connecting plates 119 are fixedly connected to the top of the tank body 108. A movable rod 120 is movably inserted into the inner wall of the second connecting plate 119. Through the movable rod 120, the cam 122 can be rotated normally by the second servo motor 121.

[0035] like Figure 5 and Figure 6 As shown, a second servo motor 121 is fixedly installed on the reverse side of the second connecting plate 119, and a set of cams 122 are fixedly connected to the outer wall of the movable rod 120. The outer wall of the cams 122 is slidably connected to the top of the first connecting plate 118. The output end of the second servo motor 121 is fixedly connected to one end of the movable rod 120. Through the second servo motor 121, the cams 122 can rotate normally and contact the top of the first connecting plate 118.

[0036] like Figure 1 and Figure 2 As shown, the auxiliary mechanism 2 includes a storage tank 201. The top of the storage tank 201 is connected to an air-cooled cooler 205. The front of the air-cooled cooler 205 is fixedly connected to a first telescopic hose 204. The inside of the first telescopic hose 204 is connected to the circulation pipeline 111. Through the first telescopic hose 204, when the tank 108 moves up and down, its own state is changed by force to avoid interfering with its up and down movement.

[0037] like Figure 1 and Figure 2 As shown, a second liquid inlet pipe 207 is fixedly connected to one side of the outer wall of the storage box 201. A second sealing cap 206 is movably inserted into the inner wall of the second liquid inlet pipe 207. By setting the second liquid inlet pipe 207, the second liquid inlet pipe 207 can be blocked when not in use to prevent foreign objects from falling into it.

[0038] like Figure 2 As shown, a circulation pump 202 is fixedly connected to the reverse side of the storage tank 201. The outlet end of the circulation pump 202 is fixedly connected to a second telescopic hose 203. The interior of the second telescopic hose 203 is connected to the circulation pipeline 111. Through the circulation pump 202 and the second telescopic hose 203, the cooling water in the storage tank 201 can be transported to the circulation pipeline 111.

[0039] The operating method and working principle of this device are as follows: First, the electric push rod 103 is activated via the control panel on the PLC controller 104, causing it to extend or retract, thus moving the tank 108 up and down. The first and second telescopic hoses 204 and 203 change their states under pressure, while the connecting rod 106 slides up and down within the column 102. This coordination allows for height adjustment of the tank 108, facilitating milk pouring into the first inlet pipe 114 for people of different heights. After pouring, the first sealing cap 115 is placed back into the first inlet pipe 114. The first servo motor 123, the second servo motor 121, the circulating pump 202, and the air-cooled cooler 205 are then activated via the control panel. The stirring rod 112 rotates to agitate the milk in the tank 108. Its movable rod 120 drives the cam 122 to rotate, and when it contacts the first connecting plate 118, it moves downwards, driving the first servo motor 123 to move downwards. When the motor 123 and stirring rod 112 move down, their sliding rod 116 and spring 117 are under pressure. When they are not in contact, the first connecting plate 118 is reset by the elastic force of the spring 117. The reciprocating up and down movement ensures that the milk at the top and bottom of the tank 108 is fully mixed, avoiding local overheating or overcooling. The start of the circulation pump 202 draws the cooling water in the storage tank 201 into the second telescopic hose 203. Through the hose, the water is transported to the circulation pipeline 111. The circulation pipeline 111 removes the heat from the tank 108. The cooling water that has absorbed the heat can be transported to the air-cooled cooler 205 through the first telescopic hose 204. The air-cooled cooler 205 uses a fan to drive airflow, dissipating the heat in the cooling water into the surrounding environment, thus lowering the temperature of the cooling water, which eventually falls into the storage tank 201. This cycle repeats, achieving the function of circulating cooling water.

[0040] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A rapid cooling device for a jacketed tank of pasteurized milk, characterized in that, It includes a main body (1), and an auxiliary mechanism (2) is fixedly connected to the top of the main body (1); The main body (1) includes a base plate (101), an electric push rod (103) is fixedly installed on the top of the base plate (101), a tank (108) is fixedly connected to the shaft end of the electric push rod (103), a jacket body (107) is fixedly connected to the outer wall of the tank (108), a circulation pipeline (111) is provided on the inner wall of the jacket body (107), a set of slide rods (116) is fixedly connected to the top of the tank (108), a spring (117) is sleeved on the outer wall of the slide rods (116), a first connecting plate (118) is fixedly connected to the shaft end of the slide rods (116), a first servo motor (123) is fixedly installed on the top of the first connecting plate (118), and a stirring rod (112) is fixedly connected to the output end of the first servo motor (123).

2. The rapid cooling device for a pasteurized milk jacketed tank according to claim 1, characterized in that: The top of the base plate (101) is fixedly connected to a column (102), and a connecting rod (106) is slidably connected to the inner wall of the column (102). The top of the connecting rod (106) is fixedly connected to the bottom of the tank (108).

3. The rapid cooling device for a pasteurized milk jacketed tank according to claim 2, characterized in that: A PLC controller (104) is fixedly installed on one side of the outer wall of one of the columns (102), and self-locking wheels (105) are fixedly installed on the bottom of the base plate (101).

4. The rapid cooling device for a pasteurized milk jacketed tank according to claim 1, characterized in that: The bottom of the tank (108) is fixedly connected to a solenoid valve (110), and the top and bottom of the tank (108) are respectively fixedly installed with a first non-contact temperature sensor (109) and a second non-contact temperature sensor (113).

5. A rapid cooling device for a pasteurized milk jacketed tank according to claim 1, characterized in that: The top of the tank (108) is fixedly connected to a first liquid inlet pipe (114), and a first sealing cap (115) is movably inserted into the inner wall of the first liquid inlet pipe (114).

6. The rapid cooling device for a pasteurized milk jacketed tank according to claim 1, characterized in that: A set of second connecting plates (119) is fixedly connected to the top of the tank (108), and a movable rod (120) is movably inserted into the inner wall of the second connecting plate (119).

7. A rapid cooling device for a pasteurized milk jacketed tank according to claim 6, characterized in that: A second servo motor (121) is fixedly installed on the reverse side of the second connecting plate (119). A set of cams (122) is fixedly connected to the outer wall of the movable rod (120). The outer wall of the cams (122) is slidably connected to the top of the first connecting plate (118). The output end of the second servo motor (121) is fixedly connected to one end of the movable rod (120).

8. A rapid cooling device for a pasteurized milk jacketed tank according to claim 1, characterized in that: The auxiliary mechanism (2) includes a storage box (201), the top of which is connected to an air-cooled cooler (205), and the front of the air-cooled cooler (205) is fixedly connected to a first telescopic hose (204), the inside of which is connected to a circulation pipeline (111).

9. A rapid cooling device for a pasteurized milk jacketed tank according to claim 8, characterized in that: The storage tank (201) has a second liquid inlet pipe (207) fixedly connected to one side of its outer wall, and a second sealing cap (206) is movably inserted into the inner wall of the second liquid inlet pipe (207).

10. A rapid cooling device for a pasteurized milk jacketed tank according to claim 8, characterized in that: The storage tank (201) is fixedly connected to a circulation pump (202) on the reverse side. The outlet end of the circulation pump (202) is fixedly connected to a second telescopic hose (203). The interior of the second telescopic hose (203) is connected to the circulation pipeline (111).