Condensed milk double-tank sterilization device
By designing a dual-tank sterilization device for condensed milk, and utilizing a combination of cleaning and water return components, the problem of water consumption during condensed milk tank sterilization was solved, achieving efficient sterilization and water resource recycling.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-27
AI Technical Summary
Existing sterilization methods for condensed milk tanks consume large amounts of water and may result in insufficient sterilization.
A sterilization device for dual-tank condensed milk was designed, including a cleaning component, a sterilization component, and a water return component. Through hot water cleaning, steam sterilization, and the recycling of the water return component, efficient sterilization of condensed milk tanks and water conservation are achieved.
It achieves efficient sterilization of condensed milk tanks, reduces water waste, and improves the adequacy of sterilization.
Smart Images
Figure CN224039645U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of sterilization of condensed milk tank, in particular to a condensed milk double-tank sterilization device. BACKGROUND
[0002] The condensed milk tank is a metal container specially used for containing condensed milk. In order to ensure that the condensed milk is not contaminated by bacteria during the process of containing the condensed milk, the condensed milk tank needs to be sterilized regularly or irregularly, so as to ensure that the condensed milk tank is always clean and not contaminated. The existing sterilization and disinfection method of the condensed milk tank is usually to input boiled water into the condensed milk tank to sterilize the condensed milk tank, and then discharge the sterilized water from the condensed milk tank. Although this method can sterilize the condensed milk tank, it consumes a large amount of water, and there may be insufficient sterilization and disinfection only once. UTILITY MODEL
[0003] In order to solve the problem that a large amount of water is consumed and there may be insufficient sterilization and disinfection when the existing condensed milk tank is sterilized, the utility model provides a condensed milk double-tank sterilization device, which comprises:
[0004] A cleaning assembly for storing and conveying hot water;
[0005] A condensed milk assembly in communication with the cleaning assembly; the cleaning assembly can convey hot water into the condensed milk assembly;
[0006] A sterilization assembly in communication with the condensed milk assembly; the sterilization assembly can convey steam into the condensed milk assembly to sterilize the condensed milk assembly by steam;
[0007] A water return assembly; one end of the water return assembly is in communication with the cleaning assembly, and the other end is in communication with the sterilization assembly; the water return assembly can convey water in the sterilization assembly into the cleaning assembly.
[0008] The cleaning assembly comprises a hot water tank, a water inlet gate valve, a first temperature sensor and a first pressure sensor arranged on the hot water tank; the hot water tank is in communication with the condensed milk assembly through a water conveying pipe; a second electromagnetic valve and a water conveying pump are arranged on the water conveying pipe.
[0009] In some embodiments, a drain pipe is arranged on the hot water tank; the drain pipe is in communication with the hot water tank; a first electromagnetic valve is arranged on the drain pipe.
[0010] In some embodiments, the condensed milk assembly comprises a condensed milk tank, and a second temperature sensor, a second pressure sensor, and a material gate valve arranged on the condensed milk tank; one end of the water pipe is in communication with the hot water tank, and the other end is in communication with the condensed milk tank; an exhaust pipe is arranged on the condensed milk tank, and an exhaust pump and a fifth electromagnetic valve are arranged on the exhaust pipe; the sterilization assembly and the water return assembly are respectively in communication with the condensed milk tank.
[0011] In some embodiments, the sterilization assembly comprises a steam conveying pipe and a fourth electromagnetic valve; one end of the steam conveying pipe is in communication with the condensed milk tank, and the other end is in communication with an external steam conveying machine; when the fourth electromagnetic valve is opened, the steam conveying machine can convey external steam into the condensed milk tank through the steam conveying pipe.
[0012] In some embodiments, an inert gas conveying pipe is further arranged on the condensed milk tank; a third electromagnetic valve is arranged on the inert gas conveying pipe; one end of the inert gas conveying pipe is in communication with the condensed milk tank, and the other end is in communication with an external inert gas conveying device; when the third electromagnetic valve is opened, the inert gas conveying device can convey inert gas into the condensed milk tank.
[0013] In some embodiments, the water return assembly comprises a first water return pipe, a second water return pipe, a water return pump, a sixth electromagnetic valve, a ninth electromagnetic valve, and a filter; one end of the first water return pipe is in communication with the condensed milk tank, and the other end is in communication with the filter; one end of the second water return pipe is in communication with the filter, and the other end is in communication with the hot water tank; the sixth electromagnetic valve is arranged on the first water return pipe; the ninth electromagnetic valve is arranged on the second water return pipe; the water return pump is arranged on the second water return pipe; and the ninth electromagnetic valve is located between the hot water tank and the water return pump.
[0014] In some embodiments, the filter comprises a filter tank body and activated carbon arranged in the filter tank; one end of the first water return pipe extends through the activated carbon to the bottom of the filter tank; and one end of the second water return pipe is located at the upper part of the activated carbon.
[0015] In some embodiments, the water return assembly further comprises an emulsion discharge pipe, a seventh electromagnetic valve, and an eighth electromagnetic valve; one end of the emulsion discharge pipe is in communication with the first water return pipe; the seventh electromagnetic valve is arranged on the emulsion discharge pipe; the eighth electromagnetic valve is arranged on the first water return pipe; and the eighth electromagnetic valve is located between the emulsion discharge pipe and the filter.
[0016] To solve the problems that a large amount of water is consumed and sterilization is not sufficient when the existing condensed milk tank is sterilized, the present application has the following advantages:
[0017] By setting the cleaning assembly, hot water can be delivered to the condensed milk assembly to achieve preliminary cleaning of the condensed milk assembly, and the sterilization assembly delivers high-temperature water vapor to the condensed milk assembly to achieve re-sterilization of bacteria inside the condensed milk assembly, further sterilize the bacteria in the condensed milk assembly, and by setting the backwater assembly, the water used for sterilization in the condensed milk assembly can be recycled to achieve the purpose of saving water. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of a condensed milk double-tank sterilization device;
[0019] Figure 2 It is Figure 1 A local enlarged schematic diagram of the middle A;
[0020] Figure 3 It is Figure 1 A local enlarged schematic diagram of the middle B;
[0021] In the figure: 10, hot water tank; 11, water inlet gate valve; 20, condensed milk tank; 21, material gate valve; 30, drain pipe; 31, water delivery pipe; 32, inert gas delivery pipe; 33, steam delivery pipe; 34, exhaust pipe; 35, first backwater pipe; 36, emulsion discharge pipe; 37, second backwater pipe; 40, first temperature sensor; 41, first pressure sensor; 42, second temperature sensor; 43, second pressure sensor; 50, first electromagnetic valve; 51, second electromagnetic valve; 52, third electromagnetic valve; 53, fourth electromagnetic valve; 54, fifth electromagnetic valve; 55, sixth electromagnetic valve; 56, seventh electromagnetic valve; 57, eighth electromagnetic valve; 58, ninth electromagnetic valve; 60, water delivery pump; 61, exhaust pump; 62, backwater pump; 70, filter; 71, activated carbon. DETAILED DESCRIPTION
[0022] The present disclosure will now be discussed with reference to several example embodiments. It should be appreciated that these embodiments are discussed only to better enable persons of ordinary skill in the art to better understand and thus utilize the present disclosure, and are not intended to limit the scope of the present disclosure in any way.
[0023] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Further, unless expressly stated to the contrary, "or" refers to an inclusive or and not to an exclusive or. For example, a condition A or B is satisfied by any one of the following: A is true (or A can be satisfied); B is true (or B can be satisfied); or both A and B are true (or both A and B can be satisfied). Also, unless expressly stated to the contrary, "comprising" or "comprises" does not exclude the presence of elements or materials other than those listed in a process, method, article, or apparatus that "comprises" or "comprising" the listed elements or materials. "Comprising" or "comprises" can mean "including" or "includes" but does not exclude other elements or materials. In addition, the term "coupled" as used herein means the joining of two members that are coupled directly to each other. In other words, "coupled" does not necessarily mean that two members are directly connected to each other. It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting. It is also possible in the present disclosure that
[0024] The embodiments of the present application disclose a sterilization device for condensed milk double cans, as shown in Figure 1 、 Figure 2 、 Figure 3 The sterilization device for condensed milk double cans can comprise:
[0025] a cleaning assembly for storing and conveying hot water;
[0026] a condensed milk assembly in communication with the cleaning assembly, wherein the cleaning assembly can convey hot water into the condensed milk assembly;
[0027] a sterilization assembly in communication with the condensed milk assembly, wherein the sterilization assembly can convey steam into the condensed milk assembly to perform steam sterilization on the condensed milk assembly;
[0028] The backwater assembly is communicated with the cleaning assembly at one end and communicated with the sterilization assembly at the other end; the backwater assembly can transport the water in the sterilization assembly to the cleaning assembly.
[0029] In the embodiment, the water delivery assembly can deliver the hot water to the condensed milk assembly, so that the condensed milk assembly is preliminarily cleaned; the sterilization assembly can deliver the high-temperature water vapor to the condensed milk assembly, so that the bacteria in the condensed milk assembly are killed again; the backwater assembly can recycle the water used for sterilization, so that the water consumption is saved.
[0030] In some embodiments, as shown in Figure 1 , Figure 2 The cleaning assembly comprises a hot water tank 10, and a water inlet gate valve 11, a first temperature sensor 40 and a first pressure sensor 41 arranged on the hot water tank 10; the hot water tank 10 is communicated with the condensed milk assembly through a water delivery pipe 31; the water delivery pipe 31 is provided with a second electromagnetic valve 51 and a water delivery pump 60.
[0031] In the embodiment, as shown in Figure 1 , Figure 2 The cleaning assembly comprises a hot water tank 10, and a water inlet gate valve 11, a first temperature sensor 40 and a first pressure sensor 41 arranged on the hot water tank 10; in the embodiment, the water inlet gate valve 11 can be used to deliver the external water to the hot water tank 10; when the water in the hot water tank 10 is heated, the temperature and pressure in the hot water tank 10 can be observed by the first temperature sensor 40 and the first pressure sensor 41. The hot water tank 10 is communicated with the condensed milk assembly through a water delivery pipe 31; the water delivery pipe 31 is provided with a second electromagnetic valve 51 and a water delivery pump 60; in the embodiment, the second electromagnetic valve 51 and the water delivery pump 60 are electrically connected to a controller (not shown in the figure), and the controller is also electrically connected to the first temperature sensor 40 and the first pressure sensor 41; the controller can control the opening and closing of the second electromagnetic valve 51 and the water delivery pump 60, so that the water in the hot water tank 10 is delivered out; in the embodiment, the water delivery pipe 31 can extend into the hot water tank 10, so that the water delivery pump 60 can deliver the water in the hot water tank 10 out.
[0032] In some embodiments, as shown in Figure 1 , Figure 2 The hot water tank 10 is provided with a drain pipe 30; the drain pipe 30 is communicated with the hot water tank 10; the drain pipe 30 is provided with a first electromagnetic valve 50.
[0033] In the embodiment, as shown in Figure 1 , Figure 2As shown, the hot water tank 10 is provided with a drain pipe 30; the drain pipe 30 communicates with the hot water tank 10; the drain pipe 30 is provided with a first electromagnetic valve 50, the first electromagnetic valve 50 is electrically connected with the controller, and as an option, one end of the drain pipe 30 is connected with the bottom end of the hot water tank 10, the opening of the first electromagnetic valve 50 is controlled by the controller, so as to realize the discharge of the multiple-use water in the water heater, and facilitate the discharge of the waste water in the hot water tank 10 when cleaning the hot water tank 10.
[0034] In some embodiments, as shown in Figure 1 , Figure 3 As shown, the condensed milk assembly comprises a condensed milk tank 20, and a second temperature sensor 42, a second pressure sensor 43, and a material gate valve 21 arranged on the condensed milk tank 20; one end of the water pipe 31 communicates with the hot water tank 10, and the other end communicates with the condensed milk tank 20; the condensed milk tank 20 is provided with an exhaust pipe 34, and the exhaust pipe 34 is provided with an exhaust pump 61 and a fifth electromagnetic valve 54; the sterilization assembly and the backwater assembly respectively communicate with the condensed milk tank 20.
[0035] In the present embodiment, as shown in Figure 1 , Figure 3 The second temperature sensor 42, the second pressure sensor 43, the exhaust pump and the fifth electromagnetic valve 54 are all electrically connected with the controller, the controller can monitor the temperature and pressure in the condensed milk tank 20 through the signals on the second temperature sensor 42 and the second pressure sensor 43, and can discharge the gas or water vapor in the condensed milk tank 20 by opening the fifth electromagnetic valve 54 and the exhaust pump 61. By opening the material gate valve 21, the material can be put into the condensed milk tank 20.
[0036] In some embodiments, as shown in Figure 1 The sterilization assembly comprises a steam conveying pipe 33 and a fourth electromagnetic valve 53; one end of the steam conveying pipe 33 communicates with the condensed milk tank 20, and the other end communicates with an external steam conveying machine; when the fourth electromagnetic valve 53 is opened, the steam conveying machine can convey external steam into the condensed milk tank 20 through the steam conveying pipe 33.
[0037] In the present embodiment, as shown in Figure 1 The sterilization assembly comprises a steam conveying pipe 33 and a fourth electromagnetic valve 53; one end of the steam conveying pipe 33 communicates with the condensed milk tank 20, and the other end communicates with an external steam conveying machine (not shown in the figure); in the present embodiment, the fourth electromagnetic valve 53 is electrically connected with the controller, when the electromagnetic valve is opened by the controller, the steam conveying machine can convey external steam into the condensed milk tank 20 through the steam conveying pipe 33, so as to realize the sterilization of the bacteria in the condensed milk tank 20.
[0038] In some embodiments, as shown inFigure 1 , Figure 3 As shown, the condensed milk tank 20 is also equipped with an inert gas conveying pipe 32; the inert gas conveying pipe 32 is equipped with a third solenoid valve 52; one end of the inert gas conveying pipe 32 is connected to the condensed milk tank 20, and the other end is connected to an external inert gas conveying device; when the third solenoid valve 52 is opened, the inert gas conveying device can convey inert gas into the condensed milk tank 20.
[0039] In this embodiment, as Figure 1 , Figure 3 As shown, the condensed milk tank 20 is also equipped with an inert gas delivery pipe 32; the inert gas delivery pipe 32 is equipped with a third solenoid valve 52; one end of the inert gas delivery pipe 32 is connected to the condensed milk tank 20, and the other end is connected to an external inert gas delivery device (not shown in the figure); in this embodiment, both the third solenoid valve 52 and the inert gas delivery device can be electrically connected to the controller. When it is necessary to deliver inert gas into the condensed milk tank 20 to maintain the stable gas pressure inside the condensed milk tank 20, prevent the gas pressure inside the condensed milk tank 20 from becoming unbalanced with the outside gas pressure after water vapor is discharged, and avoid damage to the condensed milk tank 20 under strong external atmospheric pressure, the controller can open the third solenoid valve 52 and control the inert gas delivery device to deliver inert gas into the condensed milk tank 20 to ensure the balance of gas pressure inside and outside the condensed milk tank 20.
[0040] In some embodiments, such as Figure 1 As shown, the water return assembly includes a first water return pipe 35, a second water return pipe 37, a water return pump 62, a sixth solenoid valve 55, a ninth solenoid valve 58, and a filter 70; one end of the first water return pipe 35 is connected to the condensed milk tank 20, and the other end is connected to the filter 70; one end of the second water return pipe 37 is connected to the filter 70, and the other end is connected to the hot water tank 10; the sixth solenoid valve 55 is disposed on the first water return pipe 35; the ninth solenoid valve 58 is disposed on the second water return pipe 37; the water return pump 62 is disposed on the second water return pipe 37; and the ninth solenoid valve 58 is located between the hot water tank 10 and the water return pump 62.
[0041] In this embodiment, as Figure 1As shown, the water return assembly comprises a first water return pipe 35, a second water return pipe 37, a water return pump 62, a sixth solenoid valve 55, a ninth solenoid valve 58, and a filter 70; in this embodiment, the water return pump 62, the sixth solenoid valve 55, and the ninth solenoid valve 58 are electrically connected to the controller; one end of the first water return pipe 35 is in communication with the condensed milk tank 20, and the other end is in communication with the filter 70; one end of the second water return pipe 37 is in communication with the filter 70, and the other end is in communication with the hot water tank 10; the sixth solenoid valve 55 is arranged on the first water return pipe 35; the ninth solenoid valve 58 is arranged on the second water return pipe 37; the water return pump 62 is arranged on the second water return pipe 37; the ninth solenoid valve 58 is located between the hot water tank 10 and the water return pump 62; in this embodiment, when it is necessary to recycle the water in the condensed milk tank 20, the controller can be used to open the water return pump 62, the sixth solenoid valve 55, the ninth solenoid valve 58, the third solenoid valve 52, and the inert gas delivery device; when the water in the condensed milk tank 20 enters the filter 70, the filter 70 can filter the water, and the water return pump 62 can pump the filtered water into the hot water tank 10, thereby achieving the utilization of the water.
[0042] In some embodiments, as shown in Figure 1 , Figure 3 the filter 70 comprises a filter tank body and activated carbon 71 arranged in the filter tank; one end of the first water return pipe 35 extends through the activated carbon 71 to the bottom of the filter tank; one end of the second water return pipe 37 is located above the activated carbon 71.
[0043] In this embodiment, as shown in Figure 1 , Figure 3 the filter 70 comprises a filter tank body and activated carbon 71 arranged in the filter tank; in this embodiment, the activated carbon 71 can filter the particulate matter in the water, thereby making the water clean; in this embodiment, the shape and thickness of the activated carbon 71 can be set according to actual conditions. One end of the first water return pipe 35 extends through the activated carbon 71 to the bottom of the filter tank; one end of the second water return pipe 37 is located above the activated carbon 71.
[0044] In some embodiments, as shown in Figure 1 , Figure 3 the water return assembly further comprises a milk emulsion discharge pipe 36, a seventh solenoid valve 56, and an eighth solenoid valve 57; one end of the milk emulsion discharge pipe 36 is in communication with the first water return pipe 35; the seventh solenoid valve 56 is arranged on the milk emulsion discharge pipe 36; the eighth solenoid valve 57 is arranged on the first water return pipe 35; the eighth solenoid valve 57 is located between the milk emulsion discharge pipe 36 and the filter 70.
[0045] In the embodiment, the water return assembly further comprises an emulsion discharge pipe 36, a seventh electromagnetic valve 56, and an eighth electromagnetic valve 57; the seventh electromagnetic valve 56 and the eighth electromagnetic valve 57 are electrically connected to the controller respectively; one end of the emulsion discharge pipe 36 is in communication with the first water return pipe 35; the seventh electromagnetic valve 56 is arranged on the emulsion discharge pipe 36; the eighth electromagnetic valve 57 is arranged on the first water return pipe 35; the eighth electromagnetic valve 57 is located between the emulsion discharge pipe 36 and the filter 70; when it is needed to discharge the emulsion in the condensed milk tank 20, the controller can close the seventh electromagnetic valve 56, and open the sixth electromagnetic valve 55 and the eighth electromagnetic valve 57, so that the emulsion can be discharged from the emulsion discharge pipe 36.
[0046] The working principle of the utility model is:
[0047] When it is needed to use hot water to preliminarily clean the condensed milk tank 20, the controller opens the second electromagnetic valve 51, the water conveying pump 60, the fifth electromagnetic valve 54, and the exhaust pump 61, hot water in the hot water tank 10 is conveyed into the condensed milk tank 20, and the temperature and the pressure in the condensed milk tank 20 are monitored through the second temperature sensor 42 and the second pressure sensor 43; after a predetermined amount of water is conveyed into the condensed milk tank 20 to clean the inside of the condensed milk tank 20, the second electromagnetic valve 51, the water conveying pump 60, the fifth electromagnetic valve 54, and the exhaust valve are closed; the sixth electromagnetic valve 55, the seventh electromagnetic valve 56, the ninth electromagnetic valve 58, the water return pump 62, the fourth electromagnetic valve 53, and the steam conveyor are opened, the water in the condensed milk tank 20 is drawn into the hot water tank 10, and hot steam enters the condensed milk tank 20 to sterilize the inside of the condensed milk tank 20 again; after the inside of the condensed milk tank 20 is sterilized again, and the water is discharged, the controller closes the sixth electromagnetic valve 55, the seventh electromagnetic valve 56, the ninth electromagnetic valve 58, the water return pump 62, the fourth electromagnetic valve 53, and the steam conveyor, and opens the third electromagnetic valve 52, the inert gas conveying device, and the fifth electromagnetic valve 54 and the exhaust pump 61, the water vapor in the condensed milk tank 20 is discharged, and the inert gas is input, so that the pressure balance between the inside and the outside of the condensed milk tank 20 is maintained.
[0048] In the above embodiments, the hot water tank 10 has the function of heating water, and the temperature of the water and the water vapor entering the condensed milk tank 20 meets the sterilization condition.
[0049] Those skilled in the art can understand that the above embodiments are specific cases for implementing the present disclosure, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the present disclosure.
Claims
1. A sterilization device for condensed milk double cans, characterized in that, The application relates to a sterilization device for condensed milk, which comprises the following components: a cleaning component for storing and conveying hot water; a condensed milk component in communication with the cleaning component; the cleaning component can convey hot water into the condensed milk component; a sterilization component in communication with the condensed milk component; the sterilization component can convey steam into the condensed milk component to sterilize the condensed milk component by steam sterilization; a water return component; one end of the water return component is in communication with the cleaning component, and the other end is in communication with the sterilization component; the water return component can convey water in the sterilization component into the cleaning component.
2. The sterilization device for condensed milk double cans according to claim 1, characterized in that, The cleaning component comprises a hot water tank, a water inlet valve, a first temperature sensor and a first pressure sensor arranged on the hot water tank; the hot water tank is in communication with the condensed milk component through a water conveying pipe; the water conveying pipe is provided with a second electromagnetic valve and a water conveying pump.
3. The sterilization device for condensed milk double cans according to claim 2, characterized in that, The hot water tank is provided with a water outlet pipe; the water outlet pipe is in communication with the hot water tank; the water outlet pipe is provided with a first electromagnetic valve.
4. The sterilization device for condensed milk double cans according to claim 2, characterized in that, The condensed milk component comprises a condensed milk tank, a second temperature sensor, a second pressure sensor and a material valve arranged on the condensed milk tank; one end of the water conveying pipe is in communication with the hot water tank, and the other end is in communication with the condensed milk tank; the condensed milk tank is provided with an exhaust pipe; the exhaust pipe is provided with an exhaust pump and a fifth electromagnetic valve; the sterilization component and the water return component are in communication with the condensed milk tank respectively.
5. The sterilization device for condensed milk double cans according to claim 4, characterized in that, The sterilization component comprises a steam conveying pipe and a fourth electromagnetic valve; one end of the steam conveying pipe is in communication with the condensed milk tank, and the other end is in communication with an external steam conveying machine; when the fourth electromagnetic valve is opened, the steam conveying machine can convey external steam into the condensed milk tank through the steam conveying pipe.
6. The sterilization device for condensed milk double cans according to claim 5, characterized in that, The condensed milk tank is further provided with an inert gas conveying pipe; the inert gas conveying pipe is provided with a third electromagnetic valve; one end of the inert gas conveying pipe is in communication with the condensed milk tank, and the other end is in communication with an external inert gas conveying device; when the third electromagnetic valve is opened, the inert gas conveying device can convey inert gas into the condensed milk tank.
7. The sterilization device for condensed milk double cans according to claim 4, characterized in that, The water return component comprises a first water return pipe, a second water return pipe, a water return pump, a sixth electromagnetic valve, a ninth electromagnetic valve and a filter; one end of the first water return pipe is in communication with the condensed milk tank, and the other end is in communication with the filter; one end of the second water return pipe is in communication with the filter, and the other end is in communication with the hot water tank; the sixth electromagnetic valve is arranged on the first water return pipe; the ninth electromagnetic valve is arranged on the second water return pipe; the water return pump is arranged on the second water return pipe; the ninth electromagnetic valve is located between the hot water tank and the water return pump.
8. The sterilization device for condensed milk double cans according to claim 7, characterized in that, The filter comprises a filter tank body and activated carbon arranged in the filter tank; one end of the first water return pipe extends to the bottom of the filter tank through the activated carbon; one end of the second water return pipe is located on the upper part of the activated carbon.
9. The sterilization device for condensed milk double cans according to claim 8, characterized in that, The water return assembly further comprises an emulsion discharge pipe, a seventh electromagnetic valve and an eighth electromagnetic valve; one end of the emulsion discharge pipe is communicated with the first water return pipe; the seventh electromagnetic valve is arranged on the emulsion discharge pipe; the eighth electromagnetic valve is arranged on the first water return pipe; and the eighth electromagnetic valve is located between the emulsion discharge pipe and the filter.