Sterilization device for fresh milk processing

Abstract

The utility model relates to the technical field of fresh milk processing sterilization equipment, in particular to a sterilization device for fresh milk processing. According to the technical scheme, the device comprises an outer shell, a heat insulation and heat preservation layer is installed on the inner wall of the outer shell, an inner shell is installed in the heat insulation and heat preservation layer, electric heating coils are installed on the inner walls of the two sides of the heat insulation and heat preservation layer, and a first temperature detection sensor is arranged on one side of the rear end of the interior of the heat insulation and heat preservation layer; a cooling mechanism is installed on one side of the top end of the shell and comprises a liquid nitrogen adding pipe, a second electromagnetic valve, a liquid nitrogen storage tank, an intelligent flow meter, a liquid nitrogen discharging pipe, a pipe connector, a second supporting rod and a conveying pipe. The water area heating technology is adopted for heating fresh milk, the situation that the temperature of the inner wall of the inner shell is too high, and consequently the fresh milk goes bad is avoided, the heated fresh milk can be rapidly cooled, the sterilization effect of the fresh milk is improved, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of fresh milk processing and sterilization equipment, in particular to a sterilization device for fresh milk processing. Background Art

[0002] Milk is an essential nutritional necessity in our daily lives. However, fresh milk often contains a high concentration of pathogens and cannot be consumed directly. It requires sterilization and disinfection. During the milk production process, freshly squeezed milk is typically placed in a milk tank and quickly cooled to inhibit microbial growth and prolong the milk's antibacterial properties. The cooled milk is then promptly sent to the factory for processing. Through filtration, purification, cooling, homogenization, sterilization, and packaging, it becomes the sterilized milk we consume daily. Sterilization is a key process in the production of sterilized milk.

[0003] After searching, the patent announcement number CN209788351U discloses a sterilization device for fresh milk processing. The technical problem to be solved is to provide a sterilization device for fresh milk processing that has uniform heating, good sterilization effect, and can be cooled directly in the sterilization zone milk tank. The technical solution is as follows: A sterilization device for fresh milk processing, including a base, an annular slide, a first connecting frame, rollers, a sterilization tank, a first bearing seat, a hollow stirring shaft, etc.; an annular slide is provided on both sides of the right top of the base, a first connecting frame is provided on the top of the annular slide, a roller is rotatably connected to the bottom of the first connecting frame, the roller cooperates with the annular slide, and a sterilization tank is provided on the top of the first connecting frame. The utility model heats the hollow stirring shaft and the hollow disc by a heating rod and a heat-conducting rod, and the hollow stirring shaft stirs the fresh milk in the sterilization tank, so that the fresh milk can be evenly heated and sterilized by the heat of the hollow stirring shaft and the hollow disc, so that the fresh milk can be evenly heated and sterilized, and the sterilization effect is good.

[0004] In actual use, existing fresh milk sterilization equipment generally adopts electric heating to heat fresh milk. Although this method can heat fresh milk quickly, the electric heating method easily causes the temperature of the inner wall of the equipment to be too high. If the temperature of the inner wall of the equipment is too high, it is easy to cause the fresh milk to deteriorate due to the contact between the fresh milk and the inner wall, thereby affecting the quality of the fresh milk. In addition, when cooling the heated fresh milk, it takes a long time to cool the fresh milk, which affects the sterilization effect of the fresh milk. Therefore, we propose a sterilization device for fresh milk processing to solve the existing problems. Utility Model Content

[0005] The purpose of the utility model is to provide a sterilization device for fresh milk processing to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A sterilization device for processing fresh milk, comprising an outer shell, an inner wall of the outer shell being provided with an insulation layer, an inner shell being provided inside the insulation layer, electric heating coils being provided on the inner walls of both sides of the insulation layer, a liquid level detection sensor being provided on one side of the inner bottom end of the insulation layer, a first temperature detection sensor being provided on one side of the inner rear end of the insulation layer, a cooling mechanism being provided on one side of the top end of the outer shell, the cooling mechanism comprising a liquid nitrogen addition pipe, a second solenoid valve, a liquid nitrogen storage tank, an intelligent flow meter, a liquid nitrogen discharge pipe, a pipe joint, a second support rod and a delivery pipe, a liquid nitrogen discharge pipe being provided at the bottom center of the liquid nitrogen storage tank, an intelligent flow meter being provided on the outer wall of the liquid nitrogen discharge pipe, the bottom end of the liquid nitrogen discharge pipe being connected to the delivery pipe through a pipe joint, the bottom end of the delivery pipe sequentially passing through the outer shell and the top side of the insulation layer and extending into the cavity, and a second temperature detection sensor being provided below the inner rear end of the inner shell.

[0007] Through the coordinated arrangement of a series of structures such as the electric heating coil, the cavity, the heat insulation layer, the outer shell, the inner shell, the first temperature detection sensor, and the second temperature detection sensor, water is added to the cavity. When the staff performs heating and sterilizing operation on the fresh milk, the staff starts the electric heating coil, and the electric heating coil heats the water in the cavity. The first temperature detection sensor detects the temperature of the water in the cavity in real time. The heated water heats the fresh milk in the inner shell. The second temperature detection sensor detects the temperature of the fresh milk in the inner shell in real time. Thus, the utility model adopts a water heating method. The technology is used to heat the fresh milk, which avoids the situation where the inner wall temperature of the inner shell is too high and causes the fresh milk to deteriorate. Through the coordinated arrangement of a series of structures such as the cooling mechanism, when the staff cools the fresh milk after heating and sterilization, the staff opens the second solenoid valve on the liquid nitrogen discharge pipe, and the liquid nitrogen in the liquid nitrogen storage tank is discharged into the cavity through the liquid nitrogen discharge pipe and the delivery pipe. The liquid nitrogen will quickly cool the water after contacting with the water, and the cooled water will cool the fresh milk inside the inner shell. This cooling method can quickly cool the heated fresh milk and improve the sterilization effect of the fresh milk.

[0008] Preferably, a rotating shaft is provided inside the inner shell, and a stirring rod is installed on the outer wall of the rotating shaft. The top end of the rotating shaft passes through the inner shell, the thermal insulation layer and the sealed bearing at the center position of the top end of the outer shell in sequence, extends to the outside and is connected to the reduction motor through a coupling. The reduction motor is installed on the upper surface of the mounting plate, and the output shaft of the reduction motor passes through the surface of the mounting plate. First support rods are installed at the four corners of the lower surface of the mounting plate, and the first support rods are installed at the top end of the outer shell.

[0009] Preferably, the cavity is arranged between the inner wall of the heat insulation layer and the outer wall of the inner shell.

[0010] Preferably, a sealing ring is provided at the connection between the delivery pipe and the shell.

[0011] Preferably, second support rods are installed at the four corners of the bottom of the liquid nitrogen storage tank, the bottom ends of the second support rods are installed on the top of the shell, a liquid nitrogen addition pipe is provided at the center position of the top of the liquid nitrogen storage tank, and a second solenoid valve is provided on the liquid nitrogen addition pipe and the liquid nitrogen discharge pipe.

[0012] Preferably, a feed pipe is provided on one side of the top of the inner shell, and the other end of the feed pipe passes through the thermal insulation layer and the top of the outer shell in sequence and extends to the outside; a discharge pipe is provided at the center position of the bottom end of the inner shell, and the bottom end of the discharge pipe passes through the thermal insulation layer and the bottom of the outer shell in sequence and extends to the outside; an exhaust pipe and a water pipe are provided on one side of the top of the thermal insulation layer, and the water pipe is located at the front end of the exhaust pipe; the other ends of the exhaust pipe and the water pipe both pass through the thermal insulation layer and the top of the outer shell in sequence and extend to the outside; a first solenoid valve is provided on the exhaust pipe, water pipe, discharge pipe and feed pipe.

[0013] Preferably, a guide block is installed at the bottom end of the inner shell, and support columns are installed at the four corners of the bottom end of the outer shell.

[0014] Preferably, a PLC controller is installed on the front end face of the shell, and the output ends of the first temperature detection sensor, the second temperature detection sensor, the liquid level detection sensor and the intelligent flow meter are electrically connected to the input end of the PLC controller, and the output end of the PLC controller is electrically connected to the input ends of the reduction motor, the first solenoid valve and the second solenoid valve respectively.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. The utility model is equipped with a series of structures such as an electric heating coil, a cavity, a heat insulation layer, an outer shell, an inner shell, a first temperature detection sensor, and a second temperature detection sensor. Water is added to the cavity. When the staff performs heating and sterilization operation on the fresh milk, the staff starts the electric heating coil, and the electric heating coil heats the water in the cavity. The first temperature detection sensor detects the temperature of the water in the cavity in real time. The heated water heats the fresh milk inside the inner shell. The second temperature detection sensor detects the temperature of the fresh milk inside the inner shell in real time. Therefore, the utility model adopts the water heating technology to heat the fresh milk, thereby avoiding the situation where the inner wall temperature of the inner shell is too high and causes the fresh milk to deteriorate.

[0017] 2. The utility model is provided with a series of structures such as a cooling mechanism. When the staff cools the fresh milk after heating and sterilization, the staff opens the second solenoid valve on the liquid nitrogen discharge pipe, and the liquid nitrogen in the liquid nitrogen storage tank is discharged into the cavity from the liquid nitrogen discharge pipe and the delivery pipe. The liquid nitrogen will quickly cool the water after contacting with the water. After the water is cooled, the fresh milk inside the inner shell is cooled. This cooling method can quickly cool the heated fresh milk, improve the sterilization effect of the fresh milk, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0020] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the cooling mechanism of the present invention.

[0022] In the figure: 1. reduction motor; 2. mounting plate; 3. first support rod; 4. exhaust pipe; 5. feed pipe; 6. water adding pipe; 7. first solenoid valve; 8. outer shell; 9. PLC controller; 10. support column; 11. cooling mechanism; 1101. liquid nitrogen adding pipe; 1102. second solenoid valve; 1103. liquid nitrogen storage tank; 1104. intelligent flow meter; 1105. liquid nitrogen discharge pipe; 1106. pipe joint; 1107. second support rod; 1108. conveying pipe; 12. discharge pipe; 13. stirring rod; 14. electric heating coil; 15. thermal insulation layer; 16. cavity; 17. first temperature detection sensor; 18. liquid level detection sensor; 19. inner shell; 20. second temperature detection sensor; 21. guide block; 22. sealing ring; 23. rotating shaft. DETAILED DESCRIPTION

[0023] The technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments.

[0024] Example 1

[0025] like Figure 1-4As shown, the present invention proposes a sterilization device for fresh milk processing, comprising an outer shell 8, an inner wall of the outer shell 8 is provided with a heat insulation layer 15, an inner shell 19 is provided inside the heat insulation layer 15, electric heating coils 14 are provided on the inner walls of both sides of the heat insulation layer 15, a liquid level detection sensor 18 is provided on the bottom end side of the heat insulation layer 15, a first temperature detection sensor 17 is provided on the rear end side of the heat insulation layer 15, a cooling mechanism 11 is provided on the top side of the outer shell 8, and the cooling mechanism 11 includes a liquid nitrogen addition pipe 1101, a second solenoid valve 1102, and a liquid nitrogen storage tank 1103. , intelligent flow meter 1104, liquid nitrogen discharge pipe 1105, pipe joint 1106, second support rod 1107 and delivery pipe 1108. A liquid nitrogen discharge pipe 1105 is provided at the bottom center of the liquid nitrogen storage tank 1103. An intelligent flow meter 1104 is provided on the outer wall of the liquid nitrogen discharge pipe 1105. The bottom end of the liquid nitrogen discharge pipe 1105 is connected to the delivery pipe 1108 through a pipe joint 1106. The bottom end of the delivery pipe 1108 sequentially passes through the outer shell 8 and the top side of the thermal insulation layer 15 and extends into the cavity 16. A second temperature detection sensor 20 is provided at the lower inner rear end of the inner shell 19.

[0026] The working principle of the sterilization device for fresh milk processing based on the first embodiment is as follows: when in use, the external power supply is turned on, and when the staff performs heating and sterilizing operation on the fresh milk, the staff starts the electric heating coil 14, and the electric heating coil 14 heats the water in the cavity 16. The first temperature detection sensor 17 detects the temperature of the water in the cavity 16 in real time. The heated water heats the fresh milk in the inner shell 19. The second temperature detection sensor 20 detects the temperature of the fresh milk in the inner shell 19 in real time. Therefore, the utility model adopts the technology of water heating to heat the fresh milk. , which avoids the situation where the inner wall temperature of the inner shell 19 is too high and causes the fresh milk to deteriorate. When the staff cools the fresh milk after heating and sterilization, the staff opens the second solenoid valve 1102 on the liquid nitrogen discharge pipe 1105, and the liquid nitrogen in the liquid nitrogen storage tank 1103 is discharged into the cavity 16 through the liquid nitrogen discharge pipe 1105 and the delivery pipe 1108. The liquid nitrogen will quickly cool the water after contacting with the water. After the water is cooled, the fresh milk inside the inner shell 19 is cooled. This cooling method can quickly cool the heated fresh milk and improve the sterilization effect of the fresh milk.

[0027] Example 2

[0028] like Figure 1-4As shown, the present invention proposes a sterilization device for fresh milk processing. Compared with the first embodiment, this embodiment further includes: a rotating shaft 23 is provided inside the inner shell 19, and a stirring rod 13 is installed on the outer wall of the rotating shaft 23. The top end of the rotating shaft 23 passes through the inner shell 19, the heat insulation layer 15 and the sealed bearing at the top center position of the outer shell 8 in sequence, extends to the outside and is connected to the reduction motor 1 through a coupling. The reduction motor 1 is installed on the upper surface of the mounting plate 2, and the output shaft of the reduction motor 1 passes through the surface of the mounting plate 2. The four corners of the lower surface of the mounting plate 2 are all equipped with first support rods. 3, the first support rod 3 is installed at the top of the outer shell 8, the cavity 16 is set between the inner wall of the thermal insulation layer 15 and the outer wall of the inner shell 19, and a sealing ring 22 is provided at the connection between the delivery pipe 1108 and the outer shell 8. The second support rod 1107 is installed at the four corners of the bottom of the liquid nitrogen storage tank 1103, and the bottom end of the second support rod 1107 is installed at the top of the outer shell 8. A liquid nitrogen addition pipe 1101 is provided at the center position of the top of the liquid nitrogen storage tank 1103. The liquid nitrogen addition pipe 1101 and the liquid nitrogen discharge pipe 1105 are both provided with a second solenoid valve 1102. The inner shell A feed pipe 5 is provided on one side of the top of the inner shell 19, and the other end of the feed pipe 5 passes through the top of the thermal insulation layer 15 and the outer shell 8 in sequence and extends to the outside. A discharge pipe 12 is provided at the center of the bottom end of the inner shell 19, and the bottom end of the discharge pipe 12 passes through the bottom of the thermal insulation layer 15 and the outer shell 8 in sequence and extends to the outside. An exhaust pipe 4 and a water pipe 6 are provided on one side of the top of the thermal insulation layer 15, and the water pipe 6 is located at the front end of the exhaust pipe 4. The other ends of the exhaust pipe 4 and the water pipe 6 pass through the top of the thermal insulation layer 15 and the outer shell 8 in sequence and extend to the outside. The exhaust pipe 4 and the water pipe 6 , a first solenoid valve 7 is provided on the discharge pipe 12 and the feed pipe 5, a guide block 21 is installed at the bottom end of the inner shell 19, support columns 10 are installed at the four corners of the bottom end of the outer shell 8, and a PLC controller 9 is installed on the front face of the outer shell 8. The output ends of the first temperature detection sensor 17, the second temperature detection sensor 20, the liquid level detection sensor 18 and the intelligent flow meter 1104 are electrically connected to the input end of the PLC controller 9, and the output end of the PLC controller 9 is electrically connected to the input end of the reduction motor 1, the first solenoid valve 7 and the second solenoid valve 1102 respectively.

[0029] In this embodiment, the sealing ring 22 is provided, and the sealing ring 22 can seal the connection between the delivery tube 1108 and the outer shell 8. The coordinated arrangement of the rotating shaft 23, the reduction motor 1, the stirring rod 13 and other structures, when the reduction motor 1 is started, will drive the stirring rod 13 on the outer wall of the rotating shaft 23 to rotate. The rotation of the stirring rod 13 can stir the fresh milk inside the inner shell 19, so that the fresh milk is heated or cooled more evenly, further improving the sterilization effect of the fresh milk.

[0030] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A sterilizing device for fresh milk processing, comprising a housing (8), characterized in that: A heat insulation layer (15) is installed on the inner wall of the outer shell (8), an inner shell (19) is installed inside the heat insulation layer (15), electric heating coils (14) are installed on the inner walls of both sides of the heat insulation layer (15), a liquid level detection sensor (18) is provided on the inner bottom side of the heat insulation layer (15), a first temperature detection sensor (17) is provided on the inner rear end side of the heat insulation layer (15), a cooling mechanism (11) is installed on the top side of the outer shell (8), and the cooling mechanism (11) includes a liquid nitrogen addition pipe (1101), a second solenoid valve (1102), a liquid nitrogen storage tank (1103), an intelligent flow meter (1104), a liquid nitrogen A discharge pipe (1105), a pipe joint (1106), a second support rod (1107) and a delivery pipe (1108); a liquid nitrogen discharge pipe (1105) is provided at the bottom center of the liquid nitrogen storage tank (1103); an intelligent flow meter (1104) is provided on the outer wall of the liquid nitrogen discharge pipe (1105); the bottom end of the liquid nitrogen discharge pipe (1105) is connected to the delivery pipe (1108) through the pipe joint (1106); the bottom end of the delivery pipe (1108) passes through the outer shell (8) and the top side of the heat insulation layer (15) in sequence and extends into the cavity (16); a second temperature detection sensor (20) is provided below the inner rear end of the inner shell (19).

2. A sterilizing device for fresh milk processing according to claim 1, characterized in that: A rotating shaft (23) is provided inside the inner shell (19), and a stirring rod (13) is installed on the outer wall of the rotating shaft (23). The top end of the rotating shaft (23) passes through the inner shell (19), the heat insulation layer (15) and the sealed bearing at the center position of the top end of the outer shell (8) in sequence, extends to the outside and is connected to the reduction motor (1) through a coupling. The reduction motor (1) is installed on the upper surface of the mounting plate (2), and the output shaft of the reduction motor (1) passes through the surface of the mounting plate (2). First support rods (3) are installed at the four corners of the lower surface of the mounting plate (2), and the first support rods (3) are installed at the top end of the outer shell (8).

3. A sterilizing device for fresh milk processing according to claim 1, characterized in that: The cavity (16) is arranged between the inner wall of the heat-insulating layer (15) and the outer wall of the inner shell (19).

4. A sterilization device for fresh milk processing according to claim 1, characterized in that: A sealing ring (22) is provided at the connection between the delivery pipe (1108) and the housing (8).

5. The sterilization device for fresh milk processing according to claim 1, characterized in that: Second support rods (1107) are installed at the four corners of the bottom of the liquid nitrogen storage tank (1103), and the bottom ends of the second support rods (1107) are installed on the top of the shell (8). A liquid nitrogen addition pipe (1101) is provided at the center position of the top of the liquid nitrogen storage tank (1103), and a second solenoid valve (1102) is provided on the liquid nitrogen addition pipe (1101) and the liquid nitrogen discharge pipe (1105).

6. A sterilizing device for fresh milk processing according to claim 1, characterized in that: A feed pipe (5) is provided on one side of the top of the inner shell (19), and the other end of the feed pipe (5) sequentially penetrates the thermal insulation layer (15) and the top of the outer shell (8) and extends to the outside. A discharge pipe (12) is provided at the center position of the bottom end of the inner shell (19), and the bottom end of the discharge pipe (12) sequentially penetrates the thermal insulation layer (15) and the bottom of the outer shell (8) and extends to the outside. An exhaust pipe (4) and a water supply pipe (6) are provided on one side of the top of the thermal insulation layer (15), and the water supply pipe (6) is located at the front end of the exhaust pipe (4). The other ends of the exhaust pipe (4) and the water supply pipe (6) both sequentially penetrate the thermal insulation layer (15) and the top of the outer shell (8) and extend to the outside. A first solenoid valve (7) is provided on each of the exhaust pipe (4), the water supply pipe (6), the discharge pipe (12) and the feed pipe (5).

7. The sterilization device for fresh milk processing according to claim 1, characterized in that: A guide block (21) is installed at the bottom end of the inner shell (19), and support columns (10) are installed at the four corners of the bottom end of the outer shell (8).

8. The sterilization device for fresh milk processing according to claim 1, characterized in that: A PLC controller (9) is installed on the front end of the housing (8); the output ends of the first temperature detection sensor (17), the second temperature detection sensor (20), the liquid level detection sensor (18), and the intelligent flow meter (1104) are all electrically connected to the input end of the PLC controller (9); and the output end of the PLC controller (9) is electrically connected to the input ends of the reduction motor (1), the first solenoid valve (7), and the second solenoid valve (1102), respectively.

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