Edible oil cooling and filtering system

Abstract

The application provides an edible oil cooling and filtering system, which comprises a cooling tank for containing high-temperature edible oil, a nitrogen supply assembly arranged on the cooling tank, and a liquid collecting assembly arranged in the cooling tank. The nitrogen supply assembly comprises an air inlet arranged on the cooling tank, a nitrogen source arranged on the air inlet, and a nitrogen supply pump arranged between the air inlet and the nitrogen source, which is used for conveying nitrogen in the nitrogen source to the cooling tank to discharge air in the tank. The liquid collecting assembly is used for collecting condensate water generated in the cooling process. The application can avoid the contact between external air containing water vapor and the inside of the cooling tank to generate condensate water, and can effectively prevent the condensate water from mixing into the edible oil, significantly reduce the water content of the edible oil, slow down the aging speed, and prolong the storage period. The application has the advantages of simple structure, low implementation cost, convenient operation, and easy popularization and implementation.

Description

Technical Field

[0001] This application belongs to the field of edible oil production technology, specifically relating to an edible oil cooling and filtration system. Background Technology

[0002] In existing technologies, edible oil refers to animal or vegetable fats used in food preparation, which are liquid at room temperature. In the production and processing of edible oils, high-temperature processed oils typically require cooling before subsequent storage, packaging, and other processing steps. The quality of edible oils is highly sensitive to temperature changes; high temperatures can promote oxidation, generating harmful substances and leading to a decline in quality and safety. Therefore, the cooling process plays a crucial role in the entire production process, effectively maintaining the stability of edible oil quality and extending its shelf life.

[0003] In existing technologies, cooling tanks used for edible oil cooling mostly employ a non-sealed structure. During the stirring and cooling process of edible oil, there is a possibility that condensate generated during the cooling stage may drip into the edible oil. Once condensate drips into the edible oil, it will cause a significant increase in the water content, thus significantly degrading the quality of the edible oil. In addition, because the cooling tank is non-sealed, the edible oil will frequently come into contact with air during the stirring and cooling process, which will accelerate the oxidation process of the edible oil and increase the rate of oil deterioration. The above situations will lead to off-flavors in the subsequently produced finished oil, ultimately resulting in a significant reduction in the quality of the finished product. Therefore, there is an urgent need to improve the structure of the cooling tanks used for edible oil cooling and the related cooling processes to solve the above-mentioned technical problems. Utility Model Content

[0004] In order to address the technical problem in the prior art where, during the edible oil preparation process, the cooling tank is generally a non-sealed structure, and during the stirring and cooling process of the edible oil, air containing moisture from the outside will enter the cooling tank, and condensation will be generated after the air comes into contact with the low temperature inside the cooling tank. If the condensation mixes into the edible oil, it will significantly increase the water content of the edible oil, accelerate the aging of the edible oil, and reduce the shelf life of the edible oil, this application proposes an edible oil cooling and filtration system.

[0005] This application adopts the following solution: an edible oil cooling and filtration system, including a cooling tank for containing high-temperature edible oil, a nitrogen supply component disposed on the cooling tank, and a liquid collection component disposed inside the cooling tank. The nitrogen supply component is used to supply nitrogen gas into the cooling tank to discharge air from the cooling tank. The liquid collection component is used to collect condensate generated during the cooling process of the edible oil. The nitrogen supply component includes an air inlet disposed on the cooling tank, a nitrogen source disposed on the air inlet, and a nitrogen pump disposed between the air inlet and the nitrogen source. The nitrogen pump is used to transport nitrogen gas from the nitrogen source to the cooling tank.

[0006] In some feasible embodiments, the liquid collection assembly includes a flow guide shroud disposed inside the cooling tank, and a liquid collection tank between the flow guide shroud and the inner wall of the cooling tank, the liquid collection tank being used to collect condensate generated after outside air enters the cooling tank.

[0007] In some feasible embodiments, the flow guide includes an upper cover, a lower cover disposed on the upper cover, and a flow guide portion disposed between the upper cover and the lower cover, the flow guide portion being inclined relative to the inner wall of the cooling tank.

[0008] In some feasible embodiments, the flow guide is inclined away from the inner wall of the cooling tank, and the inclination angle of the flow guide relative to the inner wall of the cooling tank is defined as A, wherein A satisfies the following relationship: 30°≤A≤45°.

[0009] In some feasible embodiments, the liquid collection assembly is made of polytetrafluoroethylene.

[0010] In some feasible embodiments, the nitrogen supply assembly further includes an exhaust port located at the top of the cooling tank, which is used to discharge air from the cooling tank when the nitrogen supply pump inputs nitrogen from the nitrogen supply source into the cooling tank.

[0011] In some feasible embodiments, a liquid cooling module is also included, which includes a cooling jacket disposed on the outer periphery of the cooling tank and a condensation unit connected to the cooling jacket via piping. The cooling jacket contains a liquid refrigerant, and the heat in the cooling tank can be transferred to the liquid refrigerant, causing the liquid refrigerant to turn into a gaseous state. The condensation unit is used to turn the gaseous refrigerant into a liquid state and return it to the cooling jacket.

[0012] In some feasible embodiments, the liquid cooling module further includes a refrigerant inlet disposed on the cooling jacket and a refrigerant outlet disposed on the cooling jacket and located above the refrigerant inlet. Liquid refrigerant can enter the cooling jacket through the refrigerant inlet, and gaseous refrigerant can enter the condensation unit through the refrigerant outlet.

[0013] In some feasible embodiments, a filter module connected to the cooling tank piping is also included, the filter module being used to filter the filtered edible oil in the cooling tank.

[0014] In some feasible embodiments, the filtration module includes a first filter screen, a decolorizing layer, and a second filter screen arranged sequentially along the edible oil conveying direction. The first filter screen has a mesh size of 80-120 mesh, and the second filter screen has a mesh size of 30-50 mesh.

[0015] The thickness of the decolorizing layer is 10-25cm, and the material of the decolorizing layer is activated carbon.

[0016] It also includes a stirring module for stirring the high-temperature edible oil in the cooling tank. The stirring module includes a drive unit, a stirring rod disposed on the drive end of the drive unit and matching and extending into the cooling tank, and stirring blades extending in a closed manner along the circumference of the stirring rod.

[0017] Compared with the prior art, this application has the following beneficial effects: This application provides an edible oil cooling and filtration system, comprising a cooling tank for holding high-temperature edible oil, a nitrogen supply assembly on the cooling tank, and a liquid collection assembly inside the cooling tank. The nitrogen supply assembly includes an air inlet on the cooling tank, a nitrogen source at the air inlet, and a nitrogen pump between the air inlet and the nitrogen source. The nitrogen pump delivers nitrogen from the nitrogen source to the cooling tank to expel air from inside the tank. The liquid collection assembly collects condensate generated during the cooling process. This application, by using the nitrogen supply assembly to deliver nitrogen and expel air from inside the tank, avoids the formation of condensate from contact between external moisture-containing air and the interior of the cooling tank. Combined with the liquid collection assembly to collect condensate generated during the cooling process, it effectively prevents condensate from mixing with the edible oil, significantly reducing the water content of the edible oil, slowing down its aging process, and extending its shelf life. It has the advantages of simple structure, low implementation cost, convenient operation, and ease of promotion and implementation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the structure of an edible oil cooling and filtration system according to this application.

[0020] Figure 2 This application Figure 1 A magnified view of a portion of point A in the middle.

[0021] Figure 3 This is a schematic diagram of the structure of the fairing in this application.

[0022] Figure 4This application Figure 1 A magnified view of a section at point B.

[0023] Figure 5 This application Figure 1 A magnified view of a section at point C. Detailed Implementation

[0024] Combination such as Figures 1 to 5 As shown, this technical solution is further illustrated: an edible oil cooling and filtration system includes a cooling tank 1 for containing high-temperature edible oil, a nitrogen supply component 2 disposed on the cooling tank 1, and a liquid collection component 7 disposed within the cooling tank 1. The nitrogen supply component 2 is used to supply nitrogen gas into the cooling tank to expel air from the cooling tank 1. The liquid collection component 7 is used to collect condensate generated during the cooling process of the edible oil. The nitrogen supply component 2 includes an air inlet 20 disposed on the cooling tank 1, a nitrogen source 21 disposed on the air inlet 20, and a nitrogen pump 22 disposed between the air inlet 20 and the nitrogen source 21. The nitrogen pump 22 is used to transport nitrogen gas from the nitrogen source 21 to the cooling tank 1.

[0025] This application provides an edible oil cooling and filtration system, comprising a cooling tank for holding high-temperature edible oil, a nitrogen supply assembly on the cooling tank, and a liquid collection assembly inside the cooling tank. The nitrogen supply assembly includes an air inlet on the cooling tank, a nitrogen source at the air inlet, and a nitrogen pump between the air inlet and the nitrogen source. The nitrogen pump delivers nitrogen from the nitrogen source to the cooling tank to expel air from inside the tank. The liquid collection assembly collects condensate generated during the cooling process. This application, by using the nitrogen supply assembly to deliver nitrogen and expel air from inside the tank, avoids the formation of condensate from contact between external moisture-containing air and the interior of the cooling tank. Combined with the liquid collection assembly to collect condensate generated during the cooling process, it effectively prevents condensate from mixing with the edible oil, significantly reducing the water content of the edible oil, slowing down its aging process, and extending its shelf life. It has the advantages of simple structure, low implementation cost, convenient operation, and ease of promotion and implementation.

[0026] In actual operation, the operator first injects the hot cooking oil to be cooled into the cooling tank 1, closes the sealing cap, and then starts the nitrogen supply assembly 2. The nitrogen supply pump 22 draws high-purity nitrogen (purity ≥99.9%) from the nitrogen source 21 (such as a nitrogen cylinder) and delivers it uniformly into the cooling tank 1 through the air inlet 20. The nitrogen gradually fills the tank, and taking advantage of the fact that nitrogen is slightly less dense than air, it forces the moisture-containing air inside the tank out of the pre-set exhaust port (not marked in the diagram, usually located at the top of the tank) until the oxygen content inside the tank drops below 2% and the humidity drops below 5%, thus completing the nitrogen atmosphere construction and forming a "nitrogen seal protection".

[0027] Then start the liquid cooling module 4 matched with the cooling tank 1 to cool down the high-temperature edible oil in the tank. During this process, the liquid cooling module 4 continuously cools the cooling tank. When external moisture-containing air enters the cooling tank, the moisture in the air is pre-cooled and liquefied into water droplets, which are then collected into the liquid collecting assembly, preventing condensed water from falling into the edible oil, thereby reducing the moisture content of the edible oil.

[0028] During the implementation of this embodiment, the liquid collecting assembly 7 comprises a flow guide cover 70 arranged in the cooling tank 1, and a liquid collecting tank 71 arranged between the flow guide cover 70 and the inner wall of the cooling tank 1, wherein the liquid collecting tank 71 is used for collecting condensed liquid generated by condensation after external air enters the cooling tank 1.

[0029] During the implementation of this embodiment, the flow guide cover 70 comprises an upper cover body 700, a lower cover body 701 arranged on the upper cover body 700, and a flow guide part 702 arranged between the upper cover body 700 and the lower cover body 701, wherein the flow guide part 702 is arranged obliquely relative to the inner wall of the cooling tank 1.

[0030] During the implementation of this embodiment, the flow guide part 702 is inclined toward the direction away from the inner wall of the cooling tank 1. The inclination angle of the flow guide part 702 relative to the inner wall of the cooling tank 1 is defined as A, and the A satisfies the following relationship: 30°≤A≤45°.

[0031] By way of example, the values of A are 30°, 35°, 40°, and 45°.

[0032] In actual implementation, during the cooling process of edible oil, if there is a small amount of moisture-containing air intruded from the outside in the tank, the moisture will condense into liquid condensed water after contacting the inner wall of the cooling tank 1. Under the action of gravity, the condensed water flows downward along the tank wall. When it flows to the installation position of the flow guide cover 70, it first contacts the outer side wall of the upper cover body 700. The upper cover body 700 is in an "inverted conical" structure, and the outer wall thereof is a smooth curved surface, which can guide the condensed water to flow to the flow guide part 702 below, and finally collect in the liquid collecting tank, preventing the condensed water from dripping at any position on the tank wall and mixing into the edible oil.

[0033] During the implementation of this embodiment, the material of the liquid collecting assembly 7 is polytetrafluoroethylene.

[0034] During the implementation of this embodiment, the nitrogen supply assembly 2 further comprises an exhaust port 8 arranged at the top of the cooling tank 1. When the nitrogen supply pump 22 inputs nitrogen from the nitrogen supply source 21 into the cooling tank 1, the exhaust port 8 is used for discharging the air in the cooling tank 1.

[0035] In this embodiment, a liquid cooling module 4 is also included. The liquid cooling module 4 includes a cooling jacket 40 disposed on the outer periphery of the cooling tank 1 and a condensation unit 41 connected to the cooling jacket 40 by pipeline. The cooling jacket 40 contains a liquid refrigerant. The heat in the cooling tank 1 can be transferred to the liquid refrigerant and the liquid refrigerant can be converted into a gaseous state. The condensation unit 41 is used to convert the gaseous refrigerant into a liquid state and return it to the cooling jacket 40.

[0036] In this embodiment, the liquid cooling module 4 further includes a refrigerant inlet 42 disposed on the cooling jacket 40 and a refrigerant outlet 43 disposed on the cooling jacket 40 and located above the refrigerant inlet 42. Liquid refrigerant can enter the cooling jacket 40 through the refrigerant inlet 42, and gaseous refrigerant can enter the condensation unit 41 through the refrigerant outlet 43.

[0037] In this embodiment, a filter module 5 connected to the pipeline of the cooling tank 1 is also included. The filter module 5 is used to filter the edible oil that has been filtered in the cooling tank 1.

[0038] In this embodiment, the filtration module 5 includes a first filter screen 50, a decolorizing layer 51, and a second filter screen 52 arranged sequentially along the edible oil conveying direction. The first filter screen 50 has a mesh size of 80-120 mesh, and the second filter screen 52 has a mesh size of 30-50 mesh.

[0039] In actual implementation, the first filter screen has a mesh size of 100 mesh, and the second filter screen has a mesh size of 50 mesh.

[0040] The thickness of the decolorizing layer 51 is 10-25cm, and the material of the decolorizing layer 51 is activated carbon.

[0041] In actual implementation, the thickness of the decolorization layer is 12cm, and the particle size range of the activated carbon used in the decolorization layer is 1-3cm.

[0042] It also includes a stirring module 6 for stirring the high-temperature edible oil in the cooling tank 1. The stirring module 6 includes a drive member 60, a stirring rod 61 disposed on the drive end of the drive member 60 and matchingly extending into the cooling tank 1, and a stirring blade 62 extending circumferentially along the stirring rod 61.

[0043] This application provides an edible oil cooling and filtration system, comprising a cooling tank for holding high-temperature edible oil, a nitrogen supply assembly on the cooling tank, and a liquid collection assembly inside the cooling tank. The nitrogen supply assembly includes an air inlet on the cooling tank, a nitrogen source at the air inlet, and a nitrogen pump between the air inlet and the nitrogen source. The nitrogen pump delivers nitrogen from the nitrogen source to the cooling tank to expel air from inside the tank. The liquid collection assembly collects condensate generated during the cooling process. This application, by using the nitrogen supply assembly to deliver nitrogen and expel air from inside the tank, avoids the formation of condensate from contact between external moisture-containing air and the interior of the cooling tank. Combined with the liquid collection assembly to collect condensate generated during the cooling process, it effectively prevents condensate from mixing with the edible oil, significantly reducing the water content of the edible oil, slowing down its aging process, and extending its shelf life. It has the advantages of simple structure, low implementation cost, convenient operation, and ease of promotion and implementation.

[0044] The above are merely embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An edible oil cooling and filtering system, characterized by, The device includes a cooling tank (1) for holding high-temperature edible oil, a nitrogen supply assembly (2) provided on the cooling tank (1), and a liquid collection assembly (7) provided in the cooling tank (1). The nitrogen supply assembly (2) is used to supply nitrogen gas into the cooling tank to discharge the air in the cooling tank (1). The liquid collection assembly (7) is used to collect condensate generated during the cooling of edible oil. The nitrogen supply assembly (2) includes an air inlet (20) provided on the cooling tank (1), a nitrogen source (21) provided on the air inlet (20), and a nitrogen pump (22) provided between the air inlet (20) and the nitrogen source (21). The nitrogen pump (22) is used to transport nitrogen gas in the nitrogen source (21) to the cooling tank (1).

2. The edible oil cooling and filtration system according to claim 1, characterized in that, The liquid collection assembly (7) includes a flow guide (70) disposed in the cooling tank (1) and a liquid collection tank (71) between the flow guide (70) and the inner wall of the cooling tank (1). The liquid collection tank (71) is used to collect the condensate generated after the outside air enters the cooling tank (1).

3. The cooling and filtering system of claim 2, wherein, The flow guide (70) includes an upper cover (700), a lower cover (701) disposed on the upper cover (700), and a flow guide (702) disposed between the upper cover (700) and the lower cover (701), wherein the flow guide (702) is inclined relative to the inner wall of the cooling tank (1).

4. The cooling and filtering system of claim 3, wherein, The flow guide (702) is inclined away from the inner wall of the cooling tank (1), and the angle of inclination of the flow guide (702) relative to the inner wall of the cooling tank (1) is defined as A, and A satisfies the following relationship: 30°≤A≤45°.

5. The cooling and filtering system of claim 2, wherein, The liquid collection component (7) is made of polytetrafluoroethylene.

6. The cooling and filtering system of claim 2, wherein, The nitrogen supply assembly (2) also includes an exhaust port (8) located at the top of the cooling tank (1). When the nitrogen supply pump (22) inputs nitrogen from the nitrogen source (21) into the cooling tank (1), the exhaust port (8) is used to discharge the air from the cooling tank (1).

7. The cooling and filtering system of claim 1, wherein, It also includes a liquid cooling module (4), which includes a cooling jacket (40) disposed on the outer periphery of the cooling tank (1) and a condensation unit (41) connected to the cooling jacket (40) by a pipeline. The cooling jacket (40) contains a liquid cooling medium, and the heat in the cooling tank (1) can be transferred to the liquid cooling medium and the liquid cooling medium is converted into a gaseous state. The condensation unit (41) is used to convert the gaseous cooling medium into a liquid state and return it to the cooling jacket (40).

8. The cooling and filtering system of claim 7, wherein, The liquid cooling module (4) also includes a refrigerant inlet (42) provided on the cooling jacket (40) and a refrigerant outlet (43) provided on the cooling jacket (40) and located above the refrigerant inlet (42). Liquid refrigerant can enter the cooling jacket (40) through the refrigerant inlet (42), and gaseous refrigerant can enter the condensing unit (41) through the refrigerant outlet (43).

9. The cooling and filtering system of claim 1, wherein, It also includes a filter module (5) connected to the pipeline of the cooling tank (1), the filter module (5) being used to filter the edible oil that has been filtered in the cooling tank (1).

10. The cooling and filtering system for edible oil according to claim 9, wherein The filtration module (5) includes a first filter screen (50), a decolorizing layer (51), and a second filter screen (52) arranged sequentially along the edible oil conveying direction. The first filter screen (50) has a mesh size of 80-120 mesh, and the second filter screen (52) has a mesh size of 30-50 mesh.

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