Fresh milk instant heating, sterilizing and self-cleaning all-in-one machine and cleaning system and method

Abstract

The invention discloses a fresh milk instant heating sterilization self-cleaning all-in-one machine and a cleaning system and method.The fresh milk instant heating sterilization self-cleaning all-in-one machine comprises a plurality of reagent cylinders, a first pump device, a first cleaning pipe, a second cleaning pipe and a first cleaning connector, the first cleaning pipe and the second cleaning pipe are connected to the two ends of the first pump device respectively, and the first pump device is a two-way pump and used for pumping to the first cleaning pipe or the second cleaning pipe; each reagent cylinder is connected with a reagent branch pipeline and is connected with the second cleaning pipe through the reagent branch pipeline, and a branch pipe valve is mounted in the middle section of the reagent branch pipeline; a first cleaning connector is installed at the end, away from the first pump device, of the first cleaning pipe and used for being connected with a cleaned device. The fresh milk instant-heating sterilization system and the cleaning system are combined, the fresh milk instant-heating sterilization system can kill pathogenic bacteria and most bacteria in raw milk through the pasteurization assembly, the nutritional ingredients and flavor of the fresh milk can be kept basically unchanged, and the fresh milk instant-heating sterilization system can be washed and cleaned through the cleaning system.

Description

Technical Field

[0001] The present invention relates to cleaning equipment, and more specifically, to a fresh milk instant hot sterilization self-cleaning integrated machine, and also to a cleaning system for a fresh milk instant hot sterilization system, and a cleaning method. Background Art

[0002] After fresh milk is collected from a specialized dairy farm, it often needs to be sterilized through a pasteurization process. Currently, fresh milk is usually sterilized and packaged directly in the fresh milk factory before being put on the market and supplied to consumers.

[0003] At present, some fresh milk is processed directly in fresh milk shops. After being collected from dairy farms, fresh milk is directly transported to fresh milk shops through a cold chain system and stored in tanks. When consumers need fresh milk, they can pasteurize the fresh milk directly on site. The fresh milk can be processed in a ready-to-use and ready-to-eat manner, which can further enhance the fresh milk experience.

[0004] Fresh milk in fresh milk shops is usually pasteurized with small instant sterilization equipment. After a period of use, the instant sterilization equipment usually needs to be cleaned. Usually, a small CIP cleaning system is used to flush and clean the pipes and tank containers of the instant sterilization equipment. The CIP cleaning system usually has multiple reagent cartridges. Fig.13 As shown, the lower end of each reagent cartridge 1 is connected to a reagent branch line 8, and a branch valve 801 is installed on the reagent branch line 8; each reagent branch line 8 is connected to the second cleaning pipe 703 to form multiple branches, and the reagent and clean water are uniformly output from the second cleaning pipe 703. The first pump device 7 is installed on the second cleaning pipe 703, which can be used to output the reagent to the instant thermal sterilization equipment to clean the instant thermal sterilization equipment.

[0005] When the reagent in the corresponding reagent cartridge 1 does not need to be used, close the corresponding branch pipe valve 801, and the reagent cartridge 1 can be cut off from the cleaning pipe 2 703. However, in the lower half of the reagent branch pipe 8, i.e., near the connection position of the reagent branch pipe 8 and the cleaning pipe 2 703, the space of the position is relatively closed and there is no direct water flow circulation, and a part of the reagent will still be retained, and the reagent residue of the part may slowly escape into the cleaning pipe 2 703, and then enter the instant sterilization equipment with the subsequent water flow to produce new pollution. Especially in the case where the equipment is subjected to external vibration or external collision, the reagent residue at the lower end of the reagent branch pipe 8 may be accelerated to enter the cleaning pipe 2 703. If this situation occurs in the middle section of the cleaning process, the subsequent washing water can remove the residual pollution, and if this situation occurs at the end of the cleaning process, the residual pollution will be retained in the pipeline of the instant sterilization equipment, and the fresh milk will be polluted.

[0006] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0007] The object of the present invention is to overcome the deficiencies of the prior art and to provide a fresh milk instant hot sterilization self-cleaning all-in-one machine, a cleaning system and a method.

[0008] In order to achieve the above object, the present invention adopts the following technical solution:

[0009] A cleaning system includes a plurality of reagent cartridges, a first pump device, a cleaning tube 1, a cleaning tube 2 and a cleaning interface 1. The cleaning tube 1 and the cleaning tube 2 are respectively connected to the two ends of the first pump device. The first pump device is a bidirectional pump for pumping from the cleaning tube 1 to the cleaning tube 2 or from the cleaning tube 2 to the cleaning tube 1. Each reagent cartridge is connected to a reagent branch line. Each reagent cartridge is respectively connected to the cleaning tube 2 through the reagent branch line, and the reagent branch line is installed with a branch valve. A cleaning interface 1 is installed at the end of the cleaning tube 1 away from the first pump device, and the cleaning interface 1 is used to connect to the cleaned equipment.

[0010] The present invention is further configured such that the reagent branch line has an upper end and a lower end, the upper end of the branch line is upwardly connected to the bottom of the reagent cylinder, and the lower end of the branch line is downwardly connected to the second cleaning pipe; the branch pipe valve is located in the middle section of the reagent branch line.

[0011] The present invention is further configured such that the reagent cartridge comprises a cartridge body, a connecting cartridge and a piston member, wherein the connecting cartridge is fixedly connected to the bottom of the reagent cartridge, the upper end of the connecting cartridge is connected to the cartridge body, and the lower end of the connecting cartridge is connected to a reagent branch line;

[0012] The present invention is further configured such that the piston member is connected to the inside of the connecting tube and can seal and separate the upper and lower ends of the connecting tube; the piston member is provided with a through hole that passes through from top to bottom, and the piston member is provided with a one-way conductive member, which is used to control the one-way conduction of the through hole from top to bottom.

[0013] The present invention is further configured such that the one-way conductive member includes a connecting portion and an elastic sealing portion, the connecting portion and the elastic sealing portion are integrally connected, the connecting portion is connected to the piston member, the elastic sealing portion elastically fits the lower side of the piston member and is used to seal the through hole, and the elastic sealing portion can elastically bend downward to open the through hole.

[0014] The present invention is further configured such that a pressure relief port is provided on the outer side of the lower portion of the connecting tube, the pressure relief port is connected to a pressure relief pipe, and the pressure relief pipe is provided with a pressure relief valve.

[0015] The present invention is further configured such that the side wall of the cylinder is a double-layer structure, including an outer cylinder layer and an inner cylinder layer, the outer cylinder layer is fixedly connected to the bottom of the cylinder, the inner cylinder layer is slidably connected up and down in the outer cylinder layer, and the outer periphery of the inner cylinder layer is sealed and slidably connected to the inner periphery of the outer cylinder layer; the piston member is installed in the inner cylinder layer, the upper and lower ends of the inner cylinder layer are connected, and a limit ring 2 is provided on the inner periphery of the upper and lower ends.

[0016] The present invention is further configured such that the side wall of the outer cylinder layer is provided with a water hole 1 connected to the bottom of the cylinder, and the side wall of the inner cylinder layer is provided with a water hole 2. The inner cylinder layer has a highest position and a lowest position within the outer cylinder layer. At the highest position, the water hole 1 and the water hole 2 are offset and disconnected from each other; at the lowest position, the water hole 1 and the water hole 2 are aligned and connected to each other.

[0017] The present invention also provides a fresh milk instant hot sterilization self-cleaning all-in-one machine, comprising a fresh milk instant hot sterilization system and the above-mentioned cleaning system;

[0018] The fresh milk instant hot sterilization system comprises a milk storage cylinder, a second pump device, a pasteurization component, a milk outlet interface and an interface pipe 1, wherein the milk storage cylinder, the second pump device, the pasteurization component and the milk outlet interface are connected in sequence through pipelines, the second pump device is used to pump from the milk storage cylinder to the milk outlet interface, and the interface pipe 1 is detachably mounted on the milk outlet interface.

[0019] A cleaning nozzle is installed in the milk storage barrel, and the cleaning nozzle is connected to a cleaning pipe 3, the cleaning pipe 3 extends out of the milk storage barrel and is installed with a cleaning interface 2, and the cleaning interface 2 is used to connect with the cleaning interface 1;

[0020] It also includes a water return interface, a water return pipe and a second interface pipe, wherein the water return interface is connected to the drain pipe via the water return pipe, and the second interface pipe can be detachably connected to the milk outlet interface and the water return interface.

[0021] The present invention is further configured such that the milk storage cylinder is connected to the second pump device via a connecting pipe 1, the connecting pipe 1 is provided with a valve device 1, the cleaning pipe 3 is provided with a valve device 2, the valve device 1 and the valve device 2 are both three-way valves, and respectively have a branch interface 1 and a branch interface 2, the branch interface 1 and the branch interface 2 are connected via a connecting pipe 2, and the branch interface 1 and the branch interface 2 can be switched on and off via the valve device 1 and the valve device 2.

[0022] The present invention also provides a cleaning method, using the above-mentioned fresh milk instant hot sterilization self-cleaning integrated machine to clean the fresh milk instant hot sterilization system; in the cleaning system, four reagent cylinders are provided, namely a first reagent cylinder storing clean water at room temperature, a second reagent cylinder storing alkaline cleaning reagent, a third reagent cylinder storing acidic cleaning reagent and a fourth reagent cylinder storing hot water;

[0023] During the cleaning process, cleaning is first performed using cleaning step a, and then cleaning is performed using cleaning step b. Cleaning step a is to use clean water, alkaline cleaning agents, and acidic cleaning agents to clean the pipelines in the fresh milk instant hot sterilization system;

[0024] Cleaning step b comprises:

[0025] Step b1, pumping clean water in the fresh milk instant hot sterilization system into the second reagent cylinder and the third reagent cylinder through the first pump device, and reversely flushing the reagent branch pipeline at the lower part of the second reagent cylinder and the third reagent cylinder;

[0026] Step b2, extracting clean water from the first reagent cylinder by a first pump device, pumping the water to the fresh milk instant hot sterilization system, and flushing the reagent branch line at the bottom of the first reagent cylinder;

[0027] Step b3, using the hot water in the fourth reagent cylinder to sterilize the pipelines in the fresh milk instant hot sterilization system.

[0028] In summary, the present invention has the following beneficial effects:

[0029] By combining the fresh milk instant hot sterilization system and the cleaning system, the fresh milk instant hot sterilization system can pasteurize the fresh milk through the pasteurization component, which can not only kill the pathogenic bacteria and most bacteria in the raw milk, but also keep the nutritional components and flavor of the fresh milk basically unchanged. The cleaning system can flush and clean the equipment and pipelines in the fresh milk instant hot sterilization system.

[0030] In the cleaning system, by setting the first pump device as a bidirectional pump structure, bidirectional delivery can be achieved. During the cleaning process, clean water can be reversely sent into the corresponding reagent cylinder. During the backflow process, the reagent branch pipeline at the lower part of the reagent cylinder can be reversely flushed, and the reagent residue in the reagent branch pipeline can be removed, thereby preventing the reagent residue from contaminating the cleaned equipment;

[0031] By arranging a connecting tube and a piston in the reagent cartridge, the piston can separate the inner cavity of the connecting tube into two upper and lower chambers. In the lower chamber of the connecting tube, part of the backwash water can be buffered to prevent the backwash water from directly entering the reagent cartridge, causing dilution and contamination of the reagent in the reagent cartridge.

[0032] By opening a pressure relief port on the outside of the lower part of the connecting cylinder and installing a pressure relief valve, when excessive water flows back into the connecting cylinder, the pressure in the connecting cylinder is too high, and the water pressure will push the pressure relief valve to open, release the pressure in the connecting cylinder, and discharge the excessive backwash water, thereby avoiding damage to the equipment due to excessive pressure and ensuring normal backflow of backwash water;

[0033] By adopting a connecting tube with an inner and outer double-layer structure, the inner and outer peripheries of the connecting tube can be connected and disconnected through the up and down movement of the inner tube layer. During backwashing, backwash water buffering can be achieved in the connecting tube; during forward circulation, the water in the reagent cylinder can flow smoothly through the connecting tube, and then the water can be discharged downward. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a structural schematic diagram of a fresh milk instant hot sterilization self-cleaning all-in-one machine in this embodiment;

[0035] Figure 2 Schematic diagram of the structure of the cleaning system in this embodiment;

[0036] Figure 3 Schematic diagram of the structure of the instant hot sterilization system for fresh milk in this embodiment;

[0037] Figure 4 Schematic diagram of the connection structure between the milk storage cylinder and the connecting pipe 2 of the fresh milk instant hot sterilization system in this embodiment;

[0038] Figure 5 is a three-dimensional cross-sectional view of the first reagent cartridge in this embodiment;

[0039] Figure 6 is a three-dimensional cross-sectional view of the first connecting tube in this embodiment;

[0040] Figure 7 is a planar cross-sectional view of another connecting tube in this embodiment;

[0041] Figure 8 is a three-dimensional cross-sectional view of another reagent cartridge in this embodiment;

[0042] Fig. 9 is a three-dimensional cross-sectional view of another connecting tube in this embodiment;

[0043] Fig.10 This is a planar cross-sectional view of another connecting tube in the embodiment of the present invention, in which the connecting tube is at the highest position in the inner cylinder layer;

[0044] Fig.11 This is a planar cross-sectional view of another connecting cylinder in this embodiment, in which the connecting cylinder is at the lowest position in the inner cylinder layer;

[0045] Fig.12 This is a schematic diagram of the structure of the connecting tube and the pressure relief valve in this embodiment;

[0046] Fig.13 It is a schematic diagram of the structure of a cleaning system in the prior art.

[0047] Figure numerals: reagent cartridge 1; first reagent cartridge 101; second reagent cartridge 102; third reagent cartridge 103; fourth reagent cartridge 104; milk storage cartridge 2; agitator 201; cleaning nozzle 202; cleaning pipe three 203; cleaning interface two 204; valve device two 205; branch interface two 206; second pump device 3; connecting pipe one 301; valve device one 302; branch interface one 303; connecting pipe two 304; pasteurization component 4; first heating cartridge 410; first heating coil 411; heat exchange coil 412; second heating cartridge 420; second heating coil 421; third heating cartridge 430; third heating coil 431; temperature holding cartridge 440; temperature holding coil 441; cooling cartridge 450; cooling coil 451; milk outlet interface 5; milk outlet valve 501; interface tube one 502; interface tube 2503; return water interface 6; return water pipe 601; first pump device 7; cleaning pipe 1 701; cleaning interface 1 702; cleaning pipe 2 703; reagent branch pipeline 8; branch pipe valve 801; branch pipe upper end 802; branch pipe lower end 803; drain pipe 9; drain branch pipe 91; drain valve 911; cylinder 11; bottom; connecting cylinder 12; limit retaining ring 121; pressure relief port 122; pressure relief pipe 123; pressure relief valve 124; pressure relief water pipe 125; piston member 13; outer ring body 131; middle plate 132; through hole 133; one-way conducting member 134; connecting part 135; elastic sealing part 136; outer cylinder layer 14; water hole 141; sliding seal 142; inner cylinder layer 15; water hole 2 151; limit retaining ring 2 152; sliding seal 2 153; spring 16. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] This embodiment discloses a fresh milk instant hot sterilization self-cleaning machine, referring to Figure 1-Figure 3 As shown, it includes a fresh milk instant hot sterilization system and a cleaning system, wherein the fresh milk instant hot sterilization system is used to temporarily store fresh milk, and can pasteurize the fresh milk through the pasteurization component 4 to form fresh milk that can be directly drunk; the cleaning system can clean the fresh milk instant hot sterilization system by flushing it with alkaline reagents, acidic reagents and clean water.

[0050] Reference Figure 1 , Figure 3As shown, the fresh milk instant hot sterilization system includes a milk storage cylinder 2, a second pump device 3, a pasteurization component 4, a milk outlet interface 5 and an interface pipe 502. The milk storage cylinder 2, the second pump device 3, the pasteurization component 4 and the milk outlet interface 5 are connected in sequence through pipelines.

[0051] The second pump device 3 can pump the fresh milk in the milk storage barrel 2 and pump it from the milk storage barrel 2 to the milk outlet interface 5. During the circulation process, the fresh milk can be pasteurized and heated and sterilized by passing through the pasteurization component 4 to form warm fresh milk. The interface pipe 1 502 can be detachably installed on the milk outlet interface 5 and has an L-shaped structure, and fresh milk can be output from the interface pipe 1 502.

[0052] The milk storage cylinder 2 is connected to the second pump device 3 through a connecting pipe 301, and a valve device 302 is installed on the connecting pipe 301. The valve device 302 can control the opening and closing of the connecting pipe 301. A milk outlet valve 501 is installed on the pipeline between the pasteurization component 4 and the milk outlet interface 5, and the milk outlet valve 501 can control the opening and closing of the milk outlet interface 5. The valve device 302 and the milk outlet valve 501 can control the opening and closing of the pumping pipeline of fresh milk.

[0053] Reference Figure 3 As shown, the milk storage barrel 2 is equipped with a stirrer 201 and a cleaning nozzle 202. The stirrer 201 can stir the milk storage barrel 2. When storing fresh milk, the fresh milk can be stirred to keep the fresh milk in the milk storage barrel 2 in a uniform state; when cleaning, the cleaning reagent can be stirred to improve the cleaning efficiency. The cleaning nozzle 202 can spray the milk storage barrel 2 and spray the cleaning liquid onto the inner wall of the milk storage barrel 2 to achieve efficient spray cleaning.

[0054] The cleaning nozzle 202 is connected to a cleaning pipe 3 203, through which the cleaning reagent is supplied. The cleaning pipe 3 203 extends out of the milk storage barrel 2 and is equipped with a cleaning interface 204. The cleaning interface 204 can be connected to the cleaning interface 1 702 of the cleaning system, so that the fresh milk instant hot sterilization system and the cleaning system can be connected, and the cleaning reagent in the cleaning system can be sent to the fresh milk instant hot sterilization system to achieve cleaning. The cleaning interface 1 702 and the cleaning interface 2 204 are detachably connected, and are only connected when cleaning is required to avoid the reagent being mistakenly sent into the milk storage barrel 2, causing contamination of the fresh milk.

[0055] Reference Figure 3 As shown, the fresh milk instant hot sterilization system also includes a water return interface 6, a water return pipe 601 and a second interface pipe 503. The water return interface 6 is connected to a drain pipe 9 through the water return pipe 601. The drain pipe 9 is connected to the downpipe for wastewater discharge. The second interface pipe 503 can be detachably connected to the milk outlet interface 5 and the water return interface 6.

[0056] One of interface tube 1 502 and interface tube 2 503 is selected according to the usage scenario. When sterilizing fresh milk, interface tube 1 502 is installed with the end of interface tube 1 502 facing downward, which can facilitate the collection of fresh milk; when cleaning, interface tube 2 503 is installed. Interface tube 2 503 can connect the milk outlet interface 5 and the return water interface 6, and can discharge the waste water after cleaning from the return water interface 6 and the return water pipe 601 to the drain pipe 9, thereby discharging the waste water after cleaning.

[0057] Reference Figure 3 As shown, the pasteurization component 4 includes a first heating cylinder 410, a second heating cylinder 420, a third heating cylinder 430, a temperature-maintaining cylinder 440 and a cooling cylinder 450. A heater and a coil are installed inside each cylinder for heat exchange. The heater can heat the water in the cylinder to maintain a certain temperature. The fresh milk flows through the coil in the corresponding cylinder to achieve temperature control, thereby achieving pasteurization.

[0058] Among them, the first heating tube 410 is provided with a first heating coil 411 and a heat exchange coil 412; the second heating tube 420 is provided with a second heating coil 421; the third heating tube 430 is provided with a third heating coil 431; the temperature holding tube 440 is provided with a temperature holding coil 441; the cooling tube 450 is provided with a cooling coil 451. The first heating coil 411, the second heating coil 421, the temperature holding coil 441, the heat exchange coil 412 and the cooling coil 451 are connected in sequence to form a fresh milk conveying pipeline in the pasteurization component 4.

[0059] During the sterilization process of fresh milk, the milk is pumped to the first heating coil 411 by the second pump device 3 and heated by the first heating cylinder 410; then the milk passes through the second heating coil 421 and continues to be heated by the second heating cylinder 420; then the milk passes through the temperature-keeping coil 441 and is sterilized by maintaining the high temperature for a period of time by the temperature-keeping cylinder 440; then the milk passes through the heat exchange coil 412 and the high-temperature fresh milk exchanges heat with the first heating cylinder 410 with a slightly lower temperature, which can reduce the temperature to a certain extent and realize heat recovery; then the milk passes through the cooling coil 451 and is cooled by the cooling cylinder 450 to reach a temperature suitable for drinking, and is finally output from the milk outlet interface 5 and the interface pipe 502.

[0060] The raw fresh milk in the milk storage barrel 2 flows through the pasteurization component 4, which can sterilize the raw fresh milk to obtain finished fresh milk. The specific temperatures of the first heating cylinder 410, the second heating cylinder 420, the third heating cylinder 430, the temperature holding cylinder 440 and the cooling cylinder 450 can be set according to the pasteurization situation, and the fresh milk can be sterilized.

[0061] For example, the water bath temperature in the first heating cylinder 410 is 60-65° C., and the fresh milk can be heated to 60-62° C. after passing through the first heating cylinder 410 ;

[0062] The water bath temperature in the second heating cylinder 420 is 77-79° C. After the fresh milk flows through the second heating cylinder 420 , it can be heated to 77-79° C.;

[0063] The water bath temperature in the third heating cylinder 430 is 90-97°C. After the fresh milk flows through the third heating cylinder 430, it can be heated to 90-95°C.

[0064] The water bath temperature in the temperature-holding cylinder 440 is controlled to be substantially consistent with the water bath temperature in the third heating cylinder 430, so as to extend the heat preservation time of the fresh milk when it flows through, so that the fresh milk has a sterilization time of 15 to 16 seconds, and pasteurization is achieved to obtain sterilized cooked milk;

[0065] Then, the cooked milk flows through the first heating cylinder 410 again, and heat is exchanged in the first heating cylinder 410 to achieve pre-cooling. The residual heat is transferred to the first heating cylinder 410, and the cooked milk is cooled down to 66-68° C.

[0066] Then, the cooked milk flows through the cooling cylinder 450 to be cooled to a temperature suitable for drinking, and flows out from the interface pipe 502 to obtain finished fresh milk.

[0067] The actual measured indicators of milk after being treated by the above-mentioned fresh milk instant hot sterilization system are shown in Table 1.

[0068] Table 1 Sterilization capacity of fresh milk instant sterilization system

[0069]

[0070] The cleaning system in this embodiment can be applied to the above-mentioned fresh milk instant hot sterilization self-cleaning integrated machine, and can clean the fresh milk instant hot sterilization system.

[0071] Reference Figure 1 , Figure 2 As shown, the cleaning system includes a plurality of reagent cartridges 1 , a first pump device 7 , a cleaning tube 1 701 , a cleaning tube 2 703 and a cleaning interface 1 702 .

[0072] There are four reagent cartridges 1, namely a first reagent cartridge 101, a second reagent cartridge 102, a third reagent cartridge 103 and a fourth reagent cartridge 104. The first reagent cartridge 101 is used to store clean water at room temperature, the second reagent cartridge 102 is used to store alkaline cleaning reagents, the third reagent cartridge 103 is used to store acidic cleaning reagents, and the fourth reagent cartridge 104 is used to store hot water.

[0073] A drainage branch pipe 91 is connected to the bottom of the reagent cartridge 1, and the lower end of the drainage branch pipe 91 is connected to the drainage pipe 9. A drainage valve 911 is also installed on the drainage branch pipe 91. When the reagent cartridge 1 needs to be emptied and cleaned, the drainage valve 911 can be opened to discharge the reagent in the reagent cartridge 1 into the drainage pipe 9 to achieve wastewater discharge.

[0074] The cleaning pipe 1 701 and the cleaning pipe 2 703 are respectively connected to the two ends of the first pump device 7. The first pump device 7 is a bidirectional pump that can realize the switching of pumping direction. The first pump device 7 can realize pumping from the cleaning pipe 1 701 to the cleaning pipe 2 703, or from the cleaning pipe 2 703 to the cleaning pipe 1 701. Specifically, the first pump device 7 can adopt a single pump body, for example, a bidirectional centrifugal pump or a bidirectional impeller pump, etc.; two unidirectional pumps can also be connected in reverse parallel to form a bidirectional pump station structure, which can also realize bidirectional pumping.

[0075] Reference Figure 1 , Figure 2 As shown, each reagent cylinder 1 is connected to a reagent branch line 8, and each reagent cylinder 1 is connected to the cleaning pipe 2 703 through the reagent branch line 8, and a branch valve 801 is installed in the middle section of the reagent branch line 8. According to the usage, the corresponding branch valve 801 can be controlled to open, thereby achieving the corresponding cylinder body and the branch valve 801. The reagent branch line 8 has a branch upper end 802 and a branch lower end 803, the branch upper end 802 is connected to the bottom of the reagent cylinder 1 upward, and the branch lower end 803 is connected to the cleaning pipe 2 703 downward.

[0076] A cleaning interface 1 702 is installed at one end of the cleaning pipe 1 701 away from the first pump device 7. The cleaning interface 1 702 can be connected to the cleaned equipment. Specifically, the cleaning interface 1 702 can be connected to the cleaning interface 2 204 in the fresh milk instant hot sterilization system, so that the fresh milk instant hot sterilization system and the cleaning system can be connected, and the cleaning reagent can be circulated.

[0077] When the reagent in the corresponding reagent cartridge 1 needs to be used, the corresponding branch valve 801 at the lower part of the reagent cartridge 1 can be opened, and the cleaning pipe 2 703 can be connected through the reagent branch pipe 8; by starting the first pump device 7, pumping can be carried out from the cleaning pipe 2 703 to the cleaning interface 1 702, and the corresponding reagent can be pumped into the fresh milk instant hot sterilization system to clean the fresh milk pipeline of the fresh milk instant hot sterilization system.

[0078] During the cleaning process, cleaning step a is first used to clean the pipes in the fresh milk instant hot sterilization system.

[0079] Cleaning step a is to use clean water, alkaline cleaning agents and acidic cleaning agents to clean the pipes in the fresh milk instant hot sterilization system. For example, clean water can be used for cleaning first, then alkaline cleaning agents can be used for cleaning, then acidic cleaning agents can be used for cleaning, then alkaline cleaning agents can be used for cleaning, and finally clean water can be used for cleaning. By cooperating with alkaline cleaning agents and acidic cleaning agents, the pipes in the fresh milk instant hot sterilization system can be cleaned, and automatic cleaning can be achieved. Alternatively, the cleaning steps of cleaning step a can also be specifically set according to specific cleaning requirements, so that equipment cleaning can be achieved.

[0080] Since the reagent cartridge 1 and the second cleaning tube 703 are connected through the reagent branch line 8, each reagent branch line 8 forms multiple branches on the second cleaning tube 703. A portion of the reagent will be retained at the connection between the reagent branch line 8 and the second cleaning tube 703, that is, in the inner cavity of the lower end 803 of the branch line. Moreover, since the branch valve 801 in the middle section of the reagent branch line 8 is cut off, the circulation of the water storage space in this section is poor, and the reagent may even be retained until the later stage of the cleaning process.

[0081] The cleaning reagent remaining in the lower end 803 of the branch pipe of the reagent branch line 8 may slowly escape into the second cleaning pipe 703, which may pollute the fresh milk instant hot sterilization system. For example, at the end of the cleaning process of step b4, due to vibration or external collision, the reagent remaining in the lower end 803 of the branch pipe is accelerated to enter the second cleaning pipe 703, and the reagent will be sent into the fresh milk instant hot sterilization system along with the washing water, which may pollute the fresh milk pipeline.

[0082] After cleaning step a, cleaning step b is added. Cleaning by cleaning step b can clean the reagent residue in some pipelines of the cleaning system, eliminating the potential pollution of the fresh milk instant hot sterilization system by the residual reagent. Cleaning step b includes: step b1, step 2 and step b3.

[0083] Step b1 is to close the branch pipe valve 801 at the bottom of the first reagent cartridge 101 and the fourth reagent cartridge 104 to cut off the corresponding reagent branch pipe 8; open the branch pipe valve 801 at the bottom of the second reagent cartridge 102 and the third reagent cartridge 103 to open the corresponding reagent branch pipe 8; start the first pump device 7 to pump the liquid in the cleaning pipe 1 701 toward the cleaning pipe 2 703, so as to extract the clean water in the cleaned equipment and flow it back into the second reagent cartridge 102 and the third reagent cartridge 103, and reversely flush the reagent branch pipe 8 at the bottom of the second reagent cartridge 102 and the third reagent cartridge 103, so as to reversely flush the reagent branch pipe 8 that may exist in the reagent branch pipe 8 into the second reagent cartridge 102 and the third reagent cartridge 103 respectively; then, close the branch pipe valve 801 at the bottom of the second reagent cartridge 102 and the third reagent cartridge 103, and stop the first pump device 7.

[0084] Through the reverse pumping of the first pump device 7, the clean water in the cleaned equipment can be reversely pumped into the second reagent cylinder 102 and the third reagent cylinder 103, and the reagent branch pipeline 8 at the lower part of the second reagent cylinder 102 and the third reagent cylinder 103 can be reversely flushed, so that the reagent temporarily stored therein can be cleaned, ensuring that in the subsequent cleaning process, no reagent will remain in the reagent branch pipeline 8, and no pollution will be caused to the cleaned equipment in the later stage of cleaning.

[0085] Step b2 is to close the branch pipe valves 801 at the bottom of the second reagent cartridge 102, the third reagent cartridge 103, and the fourth reagent cartridge 104 to cut off the corresponding reagent branch pipes 8; open the branch pipe valve 801 at the bottom of the first reagent cartridge 101 to open the corresponding reagent branch pipes 8; start the first pump device 7 to pump the liquid in the cleaning pipe 2 703 toward the cleaning pipe 1 701, so that the clean water in the first reagent cartridge 101 can flow toward the cleaning pipe 2 703, and can deliver water to the reagent branch pipe 8 at the bottom of the first reagent cartridge 101 to completely flush and replace the stored water therein.

[0086] Through step b2, it can be ensured that no reagent remains in the reagent branch line 8 at the lower part of the first reagent cartridge 101, and no contamination is caused to the cleaned equipment in the later stage of cleaning.

[0087] By combining step b1 and step b2, it can be ensured that the reagent branch lines 8 corresponding to the lower parts of the first reagent cartridge 101, the second reagent cartridge 102, and the third reagent cartridge 103 can be backwashed, and there will be no residual reagent contamination. At this time, only the reagent branch line 8 at the lower part of the fourth reagent cartridge 104 may have residual reagents that escape into the reagent, and the residual reagents therein will also be completely discharged at the beginning of the cleaning process in step b4, thereby ensuring that after the cleaning is completed, the above-mentioned reagent residues will not be generated in the cleaned equipment, ensuring the effectiveness of the cleaning.

[0088] Step b4 is to sterilize the pipelines in the fresh milk instant hot sterilization system using the hot water in the fourth reagent cartridge 104 to completely eliminate the potential contamination risks in the pipelines.

[0089] Reference Figure 3 As shown, a cleaning nozzle 202 is installed in the milk storage barrel 2, and the cleaning nozzle 202 is connected to the cleaning pipe three 203. The cleaning liquid between the milk storage barrel 2 and the cleaning pipe three 203 is exchanged and circulated through the cleaning nozzle 202.

[0090] In step b1, the water level of the clean water in the milk storage barrel 2 is maintained above the cleaning nozzle 202, and the cleaning nozzle 202 is immersed. When the first pump device 7 pumps in the reverse direction, it can be reversely sucked through the cleaning nozzle 202, and the clean water in the milk storage barrel 2 can flow back from the cleaning nozzle 202 and the cleaning pipe 3 203 to the cleaning system, thereby realizing the reverse pumping and circulation of clean water.

[0091] Furthermore, in order to achieve the reverse flow of clean water to the cleaning system, the connecting pipeline between the reagent cartridge 1 and the cleaning pipe 3 203 can be further designed, as shown in FIG. Figure 4 shown.

[0092] Reference Figure 4 As shown, the milk storage cylinder 2 is connected to the second pump device 3 through a connecting pipe 1 301, and the connecting pipe 1 301 is installed with a valve device 1 302. The cleaning pipe 3 203 is installed with a valve device 2 205. The valve device 1 302 and the valve device 2 205 are both three-way valves, each having three connection interfaces, two of which are main connection interfaces, which can connect the valve device 1 302 and the valve device 2 205 to the corresponding pipelines. In addition, the valve device 1 302 and the valve device 2 205 also have a branch interface 1 303 and a branch interface 2 206, respectively, as the third connection interface. The branch interface 1 303 and the branch interface 2 206 are connected through a connecting pipe 2 304.

[0093] When the cleaning liquid flows from the cleaning tube three 203 to the reagent cartridge 1, i.e., forward flushing, the branch interface one 303 and the branch interface two 206 are closed, and the two main connection interfaces of the valve device one 302 and the valve device two 205 are opened, so that the cleaning liquid can flow.

[0094] When the cleaning liquid flows from the reagent cylinder 1 to the cleaning pipe three 203, that is, reverse flushing, the main connection interface at the lower side of the valve device 1 302 is closed, the main connection interface at the upper side of the valve device 1 302 is opened, and the branch interface 1 303 of the valve device 1 302 is opened; the main connection interface at the lower side of the valve device 2 205 is closed, the main connection interface at the upper side of the valve device 205 is opened, and the branch interface 2 206 of the valve device 205 is opened, so that the clean water in the milk storage cylinder 2 can flow through the valve device 1 302, the connecting pipe 2 304, the valve device 2 205, and the cleaning pipe three 203 in sequence, and flow in the reverse direction to the cleaning system, and the backflow of clean water can also be achieved.

[0095] By using the second connecting pipe 304, a separate backflow path can be formed outside the milk storage barrel 2, so that clean water can flow in the reverse direction. During the backflow process, the water level in the milk storage barrel 2 does not need to be higher than the cleaning nozzle 202.

[0096] During step b1, the reagent is backwashed from the cleaning pipe 2 703 and the reagent branch line 8 to the second reagent cylinder 102 and the third reagent cylinder 103. The reagent in the pipeline will enter the corresponding reagent cylinder 1, which will dilute the reagent in the reagent cylinder 1 and affect the subsequent cleaning effect. The structure of the reagent cylinder 1 is further designed to avoid the problem of dilution and contamination of the time in the reagent cylinder 1 by the backwashing cleaning liquid.

[0097] Reference Figure 5 , Figure 6 , Figure 7 As shown, the present embodiment also discloses a reagent cartridge 1, comprising a cartridge body 11, a connecting cartridge 12 and a piston member 13. The connecting cartridge 12 is fixedly connected to the bottom of the reagent cartridge 1, and a seal is maintained at the connection. The upper end of the connecting cartridge 12 is connected to the cartridge body 11, and the upper end portion can extend into the upper portion of the bottom. The lower end of the connecting cartridge 12 extends to the lower portion of the bottom, and the lower end of the connecting cartridge 12 is connected to the reagent branch line 8.

[0098] The connecting cylinder 12 is in an up-and-down direction, and its axis is roughly vertical. The piston 13 is connected to the connecting cylinder 12 and can seal and separate the upper and lower ends of the connecting cylinder 12. The outer periphery of the piston 13 and the inner circumferential wall of the connecting cylinder 12 are sealed to each other, and an up-and-down sliding sealing structure can be realized.

[0099] A through hole 133 is formed on the piston member 13 and is passed through from top to bottom. The piston member 13 is provided with a one-way conducting member 134 for controlling the one-way conducting member 134 to conduct the through hole 133 from top to bottom.

[0100] When the first pump device 7 is pumping forward, the reagent in the cylinder 11 passes through the connecting cylinder 12 and flows from top to bottom in the connecting cylinder 12, and the one-way conducting member 134 opens the through hole 133, so that the reagent in the cylinder 11 can be discharged outward; when the first pump device 7 is pumping reversely, the reagent is input from the cleaning tube 2 703 and the reagent branch line 8, and enters the chamber on the lower side of the piston member 13 from the lower end of the connecting cylinder 12. At this time, the one-way conducting member 134 closes the through hole 133, and the reagent that flows back into the reagent cylinder 1 is buffered in the connecting cylinder 12, in the chamber on the lower side of the piston member 13; as the backflow reagent increases, the piston member 13 can flow upward, and can achieve expansion, ensuring that there is enough space to accommodate the backflow reagent. The backflow reagent exists in the connecting cylinder 12, and will not mix with the reagent in the cylinder 11, and will not dilute or contaminate the reagent in the cylinder 11.

[0101] Reference Figure 6 , Figure 7 As shown, the one-way conducting member 134 includes a connecting portion 135 and an elastic sealing portion 136, which are integrally connected and can be made of elastic rubber material. The elastic sealing portion 136 is a circular sheet structure, and the connecting portion 135 is fixed at the upper middle position of the elastic sealing portion 136.

[0102] The elastic sealing part 136 is elastically attached to the lower side of the piston 13, and the connecting part 135 is connected to the piston 13, so that the outer periphery of the elastic sealing part 136 can be elastically bent downward. Correspondingly, the position of the through hole 133 of the piston 13 corresponds to the outer periphery of the elastic sealing part 136.

[0103] In a natural state, the elastic sealing part 136 can elastically fit the through hole 133 of the piston member 13 to seal and cover the through hole 133. When the lower side of the piston member 13 is subjected to pressure, that is, during the backflow process, the elastic sealing part 136 is pressed upward and closely fits the piston member 13, which can maintain the sealing of the through hole 133, thereby achieving one-way closure from bottom to top; when the upper side of the piston member 13 is subjected to pressure, that is, during the forward flow process, the elastic sealing part 136 is pressed downward, and the elastic sealing part 136 will bend downward elastically to open the through hole 133, thereby achieving one-way conduction from top to bottom.

[0104] In addition, in order to limit the upward and downward sliding movement of the piston member 13, a limit stop ring 121 may be provided on the inner periphery of the upper end of the connecting tube 12 to play a blocking role and prevent the piston member 13 from disengaging.

[0105] Further, refer to Fig.12 As shown, a pressure relief port 122 may be opened on the outer side of the lower portion of the connecting tube 12 , the pressure relief port 122 is connected to a pressure relief pipe 123 , the pressure relief pipe 123 is equipped with a pressure relief valve 124 , and a pressure relief water pipe 125 of the pressure relief valve 124 is connected to the drain pipe 9 .

[0106] When excessive water flows back into the connecting tube 12, the pressure inside the connecting tube 12 is too high, and the water pressure will push the pressure relief valve 124 to open, release the pressure inside the connecting tube 12, and discharge the excessive backwash water, thereby avoiding damage to the equipment due to excessive pressure.

[0107] In addition, refer to Figure 7 As shown, a spring 16 can be elastically pressed on the upper side of the piston 13, and the spring 16 can apply downward elastic pressure to the piston 13, so that the piston 13 can be elastically reset downward under the combined effect of its own weight and elastic force. Specifically, the upper and lower ends of the spring 16 can be pressed between the limit stop ring 121 and the piston 13 to form an elastic pressing structure.

[0108] This embodiment also discloses another reagent cartridge 1. Based on the above embodiment, Figure 8-Figure 11 As shown, further details are given.

[0109] In this embodiment, the side wall of the cylinder 11 is a double-layer structure, including an outer cylinder layer 14 and an inner cylinder layer 15, and the outer cylinder layer 14 is fixedly connected to the bottom of the cylinder 11. The inner cylinder layer 15 is slidably connected to the outer cylinder layer 14 up and down, and the outer periphery of the inner cylinder layer 15 is sealed and slidably connected to the inner periphery of the outer cylinder layer 14. The upward sliding of the inner cylinder layer 15 is limited by the limit ring 121 on the inner periphery of the upper end of the outer cylinder layer 14.

[0110] The inner cylinder layer 15 is connected at both ends, and a second limit ring 152 is set on the inner circumference of the upper and lower ends. The piston member 13 is installed in the inner cylinder layer 15, and the outer circumference of the piston member 13 and the inner circumference of the inner cylinder layer 15 form a piston connection structure, which can achieve up and down sliding connection. The movement of the piston member 13 in the inner cylinder layer 15 is limited up and down by the second limit ring 152. The structure of the piston member 13 is consistent with that in the above embodiment, and can also achieve unidirectional conduction.

[0111] A water hole 141 is provided on the side wall of the outer cylinder layer 14 and is connected to the bottom of the cylinder 11. A water hole 151 is provided on the side wall of the inner cylinder layer 15. The inner cylinder layer 15 has a highest position and a lowest position in the outer cylinder layer 14. The structure of the highest position is shown in FIG. Fig.10 As shown, the lowest position structure reference Fig.11 As shown. At the highest position, the water hole 141 and the water hole 2 151 are mutually dislocated and disconnected. At the lowest position, the water hole 141 and the water hole 2 151 are mutually aligned and connected.

[0112] Reference Fig.10 As shown, during the backflow process into the reagent cylinder 1, the backflow reagent is input from the lower end of the connecting cylinder 12, and under the action of water pressure, the piston 13 and the inner cylinder layer 15 are pushed upward, and the inner cylinder layer 15 will move to the highest position, and the water hole 141 and the water hole 2 151 are offset and disconnected from each other, and the backflow water can be buffered and contained in the cylinder 11.

[0113] Reference Fig.11 As shown, in the process of outputting the reagent from the reagent cartridge 1, the lower part of the connecting cartridge 12 is subjected to the effect of suction, forming a negative pressure, which, combined with the effect of the water pressure in the reagent cartridge 1, will drive the piston 13 and the inner cylinder layer 15 to move downward, and the inner cylinder layer 15 will move to the lowest position, and the water hole 141 and the water hole 2 151 will be connected to each other, and the reagent in the reagent cartridge 1 can be completely discharged from the reagent cartridge 1, making it easier for the reagent cartridge 1 to discharge water, and there will be no water accumulation at the bottom that cannot be output for use.

[0114] In addition, refer to Fig.11 As shown, a spring 16 can be elastically pressed on the upper side of the piston 13, and the spring 16 can apply downward elastic pressure to the piston 13, so that the piston 13 can be elastically reset downward under the combined effect of its own weight and elastic force. Specifically, the upper and lower ends of the spring 16 can be pressed between the upper limit stop ring 2 152 and the piston 13 to form an elastic pressing structure.

[0115] Furthermore, in order to form a sealing structure at the connection between the inner and outer circumferential walls of the outer cylinder layer 14 and the inner cylinder layer 15, two sliding seals 142 can be arranged on the inner periphery of the outer cylinder layer 14, and the two sliding seals 142 are located on the upper and lower sides of the water hole 141; a sliding seal 153 is arranged on the outer periphery of the inner cylinder layer 15, and the sliding seal 153 is located on the upper side of the water hole 151, thereby forming a stable sliding sealing structure between the outer cylinder layer 14 and the inner cylinder layer 15, and maintaining a stable up and down sliding movement.

[0116] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A cleaning system, characterized in that: The invention comprises a plurality of reagent cartridges (1), a first pump device (7), a cleaning tube 1 (701), a cleaning tube 2 (703) and a cleaning interface 1 (702). The cleaning tube 1 (701) and the cleaning tube 2 (703) are respectively connected to the two ends of the first pump device (7). The first pump device (7) is a bidirectional pump, which is used for pumping from the cleaning tube 1 (701) to the cleaning tube 2 (703) or from the cleaning tube 2 (703) to the cleaning tube 1 (701). Each reagent cartridge (1) is connected to a reagent branch line (8). Each reagent cartridge (1) is respectively connected to the cleaning tube 2 (703) through the reagent branch line (8), and the reagent branch line (8) is installed with a branch valve (801); a cleaning interface 1 (702) is installed at one end of the cleaning tube 1 (701) away from the first pump device (7), and the cleaning interface 1 (702) is used for connecting to the equipment to be cleaned.

2. The cleaning system according to claim 1, characterized in that: The reagent branch pipe (8) comprises a branch pipe upper end (802) and a branch pipe lower end (803); the branch pipe upper end (802) is connected upward to the bottom of the reagent cylinder (1), and the branch pipe lower end (803) is connected downward to the second cleaning pipe (703); the branch pipe valve (801) is located in the middle section of the reagent branch pipe (8).

3. The cleaning system according to claim 1, characterized in that: The reagent cartridge (1) comprises a cartridge body (11), a connecting cartridge (12) and a piston member (13); the connecting cartridge (12) is fixedly connected to the bottom of the reagent cartridge (1); the upper end of the connecting cartridge (12) is connected to the cartridge body (11), and the lower end is connected to a reagent branch line (8); The piston member (13) is connected to the inside of the connecting tube (12) and can seal and separate the upper and lower ends of the connecting tube (12); the piston member (13) is provided with a through hole (133) which passes through the upper and lower parts; the piston member (13) is provided with a one-way conducting member (134), and the one-way conducting member (134) is used to control the one-way conducting of the through hole (133) from top to bottom.

4. The cleaning system according to claim 3, characterized in that: The one-way conductive member (134) comprises a connecting portion (135) and an elastic sealing portion (136), wherein the connecting portion (135) and the elastic sealing portion (136) are integrally connected, the connecting portion (135) is connected to the piston member (13), the elastic sealing portion (136) is elastically attached to the lower side of the piston member (13) and is used to seal the through hole (133), and the elastic sealing portion (136) can be elastically bent downward to open the through hole (133).

5. The cleaning system according to claim 3, characterized in that: A pressure relief port (122) is provided on the outer side of the lower part of the connecting tube (12), the pressure relief port (122) is connected to a pressure relief pipe (123), and the pressure relief pipe (123) is equipped with a pressure relief valve (124).

6. The cleaning system according to claim 3, characterized in that: The side wall of the cylinder (11) is a double-layer structure, comprising an outer cylinder layer (14) and an inner cylinder layer (15); the outer cylinder layer (14) is fixedly connected to the bottom of the cylinder (11); the inner cylinder layer (15) is slidably connected up and down inside the outer cylinder layer (14); the outer periphery of the inner cylinder layer (15) is sealingly slidably connected to the inner periphery of the outer cylinder layer (14); the piston member (13) is installed in the inner cylinder layer (15); the upper and lower ends of the inner cylinder layer (15) are connected, and a second limit stop ring (152) is provided on the inner periphery of the upper and lower ends.

7. The cleaning system according to claim 6, characterized in that: The side wall of the outer cylindrical layer (14) is provided with a water through hole (141) connected to the bottom of the cylindrical body (11), and the side wall of the inner cylindrical layer (15) is provided with a water through hole (151). The inner cylindrical layer (15) has a highest position and a lowest position in the outer cylindrical layer (14). At the highest position, the water through hole (141) and the water through hole (151) are mutually offset and disconnected; at the lowest position, the water through hole (141) and the water through hole (151) are mutually aligned and connected.

8. A fresh milk instant sterilization self-cleaning machine, characterized in that: It comprises a fresh milk instant sterilization system and a cleaning system as claimed in any one of claims 1 to 7, The fresh milk instant hot sterilization system comprises a milk storage cylinder (2), a second pump device (3), a pasteurization component (4), a milk outlet interface (5) and an interface pipe (502). The milk storage cylinder (2), the second pump device (3), the pasteurization component (4) and the milk outlet interface (5) are connected in sequence through pipelines. The second pump device (3) is used to pump from the milk storage cylinder (2) to the milk outlet interface (5). The interface pipe (502) is detachably mounted on the milk outlet interface (5). A cleaning nozzle (202) is installed in the milk storage barrel (2), and the cleaning nozzle (202) is connected to a cleaning pipe three (203). The cleaning pipe three (203) extends out of the milk storage barrel (2) and is installed with a cleaning interface two (204). The cleaning interface two (204) is used to connect with the cleaning interface one (702); It also includes a water return interface (6), a water return pipe (601) and a second interface pipe (503), wherein the water return interface (6) is connected to the drain pipe (9) via the water return pipe (601), and the second interface pipe (503) can be detachably connected to the milk outlet interface (5) and the water return interface (6).

9. The fresh milk instant hot sterilization self-cleaning integrated machine according to claim 8, characterized in that: The milk storage cylinder (2) and the second pump device (3) are connected via a connecting pipe (301), the connecting pipe (301) is provided with a valve device (302), the cleaning pipe (203) is provided with a valve device (205), the valve device (302) and the valve device (205) are both three-way valves, and respectively have a branch interface (303) and a branch interface (206), the branch interface (303) and the branch interface (206) are connected via a connecting pipe (304), and the branch interface (303) and the branch interface (206) can be switched on and off via the valve device (302) and the valve device (205).

10. A cleaning method, characterized in that: The fresh milk instant hot sterilization self-cleaning integrated machine as claimed in claim 8 is used to clean the fresh milk instant hot sterilization system; in the cleaning system, four reagent cartridges (1) are provided, namely a first reagent cartridge (101) storing clean water at room temperature, a second reagent cartridge (102) storing an alkaline cleaning reagent, a third reagent cartridge (103) storing an acidic cleaning reagent, and a fourth reagent cartridge (104) storing hot water; During the cleaning process, cleaning is first performed using cleaning step a, and then cleaning is performed using cleaning step b. Cleaning step a is to use clean water, alkaline cleaning agents, and acidic cleaning agents to clean the pipelines in the fresh milk instant hot sterilization system; Cleaning step b comprises: Step b1, pumping clean water in the fresh milk instant hot sterilization system into the second reagent cylinder (102) and the third reagent cylinder (103) through the first pump device (7), and reversely flushing the reagent branch pipeline (8) at the lower part of the second reagent cylinder (102) and the third reagent cylinder (103); Step b2, extracting clean water from the first reagent cylinder (101) through the first pump device (7), pumping the water to the fresh milk instant hot sterilization system, and flushing the reagent branch pipeline (8) at the bottom of the first reagent cylinder (101); Step b3, using the hot water in the fourth reagent cartridge (104) to sterilize the pipelines in the fresh milk instant hot sterilization system.

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