Water bath sterilization device with product retention cleaning function
By introducing a product retention and cleaning mechanism into the water bath sterilization device, and utilizing the combination of purge nozzles and conveyor belts, the problem of product retention is solved, enabling continuous production and efficient sterilization, and ensuring product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI NEW ERA HEALTH IND
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-14
AI Technical Summary
During water bath sterilization, products tend to remain on the edge of the water tank, leading to a decline in product quality and making them difficult to filter out, thus affecting production efficiency and product quality.
The product retention cleaning mechanism, including a blowing nozzle and a fixing rod, uses airflow to blow the retained products away from the inner edge of the water tank, and uses a conveyor belt and an upper pressure belt to ensure that the products are heated evenly and output smoothly.
This enables continuous production of products during the water bath sterilization process, avoids product retention, improves production efficiency and product quality, and reduces water and steam waste.
Smart Images

Figure CN224484550U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a water bath sterilization device with product retention and cleaning function, belonging to the field of water bath sterilization technology. Background Technology
[0002] A water bath sterilizer, as a traditional sterilization device, includes a water tank and a conveyor belt. The water tank is used to store clean water, which is heated by steam and then used for high-temperature sterilization of the products. The conveyor belt has baffles that are used to transport the products from the beginning to the end.
[0003] When a water bath sterilizer is used to sterilize strip-packaged or small plastic bottle products, the conveyor belt needs to transport the products inside the water tank. As the conveyor belt rotates, a certain gap needs to be maintained between the two sides of the conveyor belt and the inner edge of the water tank. Generally, the baffles on the conveyor belt are about 5 centimeters away from the edge of the water tank to prevent products from getting stuck between the baffles and the edge of the water tank, which could damage the products and the equipment. However, within this gap, some floating products often remain stuck on the edge of the water tank. They cannot move backward with the conveyor belt under the action of the baffles, resulting in prolonged heating of the stuck products, which alters the product quality. These products are mixed with other products and cannot be screened out, resulting in too many defective products and affecting product quality.
[0004] The traditional method involves draining some water from the tank at intervals to lower the water level below the carrying section of the conveyor belt, then rapidly rotating the conveyor belt to carry the water out. However, this method has two drawbacks: firstly, it is wasteful, wasting a large amount of clean water and steam, as newly added water needs to be reheated; secondly, it results in low production efficiency and discontinuous production, with each cooling, drainage, and discharge process taking approximately one hour. Furthermore, the interval is related to the product's tolerance to high temperatures; the higher the sterilization temperature, the shorter the drainage interval, severely impacting normal production. Summary of the Invention
[0005] This invention addresses the shortcomings of existing technologies by providing a water bath sterilization device with a product retention and cleaning function.
[0006] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A water bath sterilization device with product retention cleaning function includes a water tank, a conveyor belt and an upper pressure belt disposed in the water tank, the conveyor belt is provided with a baffle, the upper pressure belt is located above the conveyor belt, and the upper pressure belt can press the product into the liquid in the water tank; it also includes a product retention cleaning mechanism, the product retention cleaning mechanism includes a blowing nozzle that can blow the product away from the inner edge of the water tank, the blowing nozzles are respectively located above the liquid level in the water tank, the air inlet of the blowing nozzle is connected to the air supply source through an air supply pipeline, the first blowing nozzle is disposed on one side wall of the water tank, and the second blowing nozzle is disposed on the other side wall of the water tank.
[0007] The beneficial effects of this invention are as follows: the blowing nozzles on both sides of the product retention cleaning mechanism can blow away products stuck at the inner edge of the water tank, preventing them from remaining there. Combined with the conveyor belt, the baffles on the conveyor belt can discharge the products, and the upper pressure belt can control the products within the liquid in the water tank, ensuring uniform heating and reliable sterilization within the water bath sterilization device. This invention has a simple structure and is easy to operate. The blowing nozzles can blow away products stuck on the inner wall of the water tank, allowing them to be conveyed to the baffles and discharged in the direction of discharge. Products stuck at the inner edge of the water tank can be processed during the water bath sterilization process without stopping the machine, ensuring continuous production without affecting production efficiency, minimizing water waste, and reducing costs. It solves the problem of products such as strip-packaged items and small plastic bottles becoming stuck at the inner edge of the water tank and unable to be discharged.
[0008] Based on the above technical solution, the present invention can be further improved as follows.
[0009] Furthermore, multiple first purging nozzles are provided, and a first fixing rod is provided on one side wall of the water tank, with multiple first purging nozzles respectively disposed on the first fixing rod.
[0010] The advantage of adopting the above-mentioned further solution is that multiple purging nozzles located on one side of the water tank can be installed on a fixing rod, and then the fixing rod can be installed on the water tank, thereby realizing the installation and positioning of multiple purging nozzles in the water tank. The installation using the fixing rod method is more convenient and faster.
[0011] Furthermore, multiple second purging nozzles are provided, and a second fixing rod is provided on the other side wall of the water tank, with multiple second purging nozzles respectively disposed on the second fixing rod.
[0012] The advantage of adopting the above-mentioned further solution is that multiple purging nozzles located on one side of the water tank can be installed on a fixing rod, and then the fixing rod can be installed on the water tank, thereby realizing the installation and positioning of multiple purging nozzles in the water tank. The installation using the fixing rod method is more convenient and faster.
[0013] Furthermore, the first and second purging nozzles are respectively 3-5 cm above the liquid level in the water tank.
[0014] The beneficial effect of adopting the above-mentioned further solution is that it can both satisfy the requirement that the airflow blown out by the purging nozzle can blow away the product attached to the inner wall of the water tank and ensure the safety of the purging nozzle.
[0015] Furthermore, the gas supply pipeline is also equipped with a solenoid valve and a pulse jet injector.
[0016] The beneficial effect of adopting the above-mentioned further solution is that, in order to avoid the airflow from multiple purging nozzles blowing simultaneously affecting the water flow in the tank, the purging time and frequency can also be controlled by solenoid valves and pulse jet purging devices.
[0017] Furthermore, it also includes an air tank, which has an air inlet connected to an air supply source and multiple air supply ports for connecting to the air supply pipeline, and the pulse jet cleaner is mounted on the air tank.
[0018] The beneficial effects of adopting the above-mentioned further solution are that the air tank can store a certain amount of gas, and can temporarily provide a certain amount of gas when the gas supply is interrupted. The air tank can also ensure the stability of the gas supply pressure, and avoid the gas supply pressure being unstable due to fluctuations in the gas supply source, which would affect the purging effect of the purging nozzle.
[0019] Furthermore, a one-way valve is provided on the gas supply line.
[0020] The advantage of adopting the above-mentioned further solution is that it prevents the gas in the gas supply line from flowing backward and ensures that the airflow flows in the direction of the purging nozzle.
[0021] Furthermore, the air outlets of the first and / or second purging nozzles blow air toward the inner edge of the water tank.
[0022] The beneficial effect of adopting the above-mentioned further solution is that the exhaust angle of the blow nozzle blows towards the inner edge of the water tank, and the airflow sprayed by the blow nozzle blows towards the water tank, which can blow the attached product away from the inner edge of the water tank, so that the product can be smoothly discharged under the action of the conveyor belt baffle.
[0023] Furthermore, the conveyor belt rotates under the action of the conveyor belt drive mechanism; the conveyor belt drive mechanism includes a conveyor belt drive wheel, a conveyor belt driven wheel, and a conveyor belt drive motor for driving the conveyor belt drive wheel to rotate, and the conveyor belt is wrapped around the conveyor belt drive wheel and the conveyor belt driven wheel.
[0024] The beneficial effect of adopting the above-mentioned further solution is that the conveyor belt drive motor is activated, the conveyor belt drive wheel rotates, thereby realizing the rotation drive of the conveyor belt, the conveyor belt runs, and the baffles on the conveyor belt can drive the product to move in the discharge direction, realizing the automatic output of the product.
[0025] Furthermore, the upper pressure belt rotates under the action of the pressure belt drive mechanism; the pressure belt drive mechanism includes a pressure belt drive wheel, a pressure belt driven wheel, and a pressure belt drive motor for driving the pressure belt drive wheel to rotate, and the upper pressure belt is wrapped around the pressure belt drive wheel and the pressure belt driven wheel.
[0026] The beneficial effect of adopting the above-mentioned further solution is that the pressure belt drive motor is activated, which drives the pressure belt drive wheel to rotate, thereby driving the upper pressure belt to rotate. In this way, the upper pressure belt not only has the ability to control the product in the liquid in the water tank, but also assists the conveyor belt in moving the product in the discharge direction. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of this utility model;
[0028] Figure 2 This is a top view of the structure of this utility model;
[0029] In the diagram, 1. Water tank; 2. Conveyor belt; 3. Upper pressure belt; 4. Blowing nozzle; 5. Air supply pipeline; 6. First fixed rod; 7. Second fixed rod; 8. Air tank; 9. Solenoid valve; 10. Pulse jet cleaner; 11. Check valve; 12. Conveyor belt drive pulley; 13. Conveyor belt drive motor; 14. Conveyor belt driven pulley; 15. Pressure belt drive pulley; 16. Pressure belt drive motor; 17. Pressure belt driven pulley; 18. Feed inlet; 19. Steam inlet. Detailed Implementation
[0030] The principles and features of this utility model are described below with reference to examples. The examples are only used to explain this utility model and are not intended to limit the scope of this utility model.
[0031] like Figure 1 and Figure 2As shown, a water bath sterilization device with product retention cleaning function includes a water tank 1, a conveyor belt 2 and an upper pressure belt 3 disposed in the water tank 1. The conveyor belt 2 is provided with a baffle, and the upper pressure belt 3 is located above the conveyor belt 2. The upper pressure belt 3 can press the product into the liquid in the water tank 1. It also includes a product retention cleaning mechanism, which includes a blowing nozzle 4 that can blow the product away from the inner edge of the water tank 1. The blowing nozzle 4 is located above the liquid level in the water tank 1. The air inlet of the blowing nozzle 4 is connected to an air supply source through an air supply pipe 5. The first blowing nozzle 4 is disposed on one side wall of the water tank 1, and the second blowing nozzle 4 is disposed on the other side wall of the water tank 1.
[0032] Multiple first-purge nozzles 4 are provided, and a first fixing rod 6 is provided on one side wall of the water tank 1. The multiple first-purge nozzles 4 are respectively mounted on the first fixing rod 6. The multiple purge nozzles 4 located on one side of the water tank 1 can be installed on the fixing rod, and then the fixing rod is installed on the water tank 1, thereby realizing the installation and positioning of multiple purge nozzles 4 in the water tank 1. The installation method using the fixing rod is more convenient and faster.
[0033] Multiple second-purge nozzles 4 are provided, and a second fixing rod 7 is provided on the other side wall of the water tank 1. The multiple second-purge nozzles 4 are respectively mounted on the second fixing rod 7. The multiple purge nozzles 4 located on one side of the water tank 1 can be installed on the fixing rod, and then the fixing rod is installed on the water tank 1, thereby realizing the installation and positioning of multiple purge nozzles 4 in the water tank 1. The installation method using the fixing rod is more convenient and faster.
[0034] The first and second purging nozzles 4 are respectively 3-5 cm above the liquid level of the water tank 1. This ensures that the airflow from the purging nozzles 4 can blow away the product adhering to the inner wall of the water tank 1, while also guaranteeing the safety of the purging nozzles 4.
[0035] The installation height of the purge nozzle 4 can be 3cm, 3.5cm, 4cm, 5cm, etc., higher than the liquid level of the water tank 1.
[0036] The air supply line 5 is also equipped with a solenoid valve 9 and a pulse jet cleaner 10. In order to avoid the airflow from multiple purging nozzles 4 affecting the water flow in the water tank 1, the purging time and frequency can also be controlled by the solenoid valve 9 and the pulse jet cleaner 10.
[0037] It also includes an air reservoir 8, which has an air inlet connected to an air supply source and multiple air outlets for connecting to the air supply pipeline 5. The pulse jet cleaner 10 is mounted on the air reservoir 8. The air reservoir 8 can store a certain amount of gas, which can temporarily provide gas when the air supply source is interrupted. The air reservoir 8 can also ensure the stability of the air supply pressure, avoiding unstable air supply pressure caused by fluctuations in the air supply source, which would affect the purging effect of the purging nozzle 4.
[0038] The gas supply line 5 is equipped with a one-way valve 11. This prevents the gas in the gas supply line 5 from flowing backward and ensures that the airflow flows in the direction of the purging nozzle 4.
[0039] The air outlets of the first and / or second purging nozzles 4 blow towards the inner edge of the water tank 1. The exhaust angle of the purging nozzles 4 blows towards the inner edge of the water tank 1, and the airflow from the purging nozzles 4 blows the attached product away from the inner edge of the water tank 1, so that the product can be smoothly discharged under the action of the baffle of the conveyor belt 2.
[0040] The conveyor belt 2 rotates under the action of a conveyor drive mechanism. The conveyor drive mechanism includes a drive pulley 12, a driven pulley 14, and a drive motor 13 for driving the drive pulley 12. The conveyor belt 2 wraps around the drive pulley 12 and the driven pulley 14. When the drive motor 13 operates, the drive pulley 12 rotates, thereby driving the conveyor belt 2 to rotate. The conveyor belt 2 runs, and the baffles on the conveyor belt 2 can move the product in the discharge direction, achieving automatic product output.
[0041] The upper pressure belt 3 rotates under the action of the pressure belt drive mechanism. The pressure belt drive mechanism includes a pressure belt drive wheel 15, a pressure belt driven wheel 17, and a pressure belt drive motor 16 for driving the pressure belt drive wheel 15 to rotate. The upper pressure belt 3 is wrapped around the pressure belt drive wheel 15 and the pressure belt driven wheel 17. When the pressure belt drive motor 16 is activated, it drives the pressure belt drive wheel 15 to rotate, thereby driving the upper pressure belt 3 to rotate. In this way, the upper pressure belt 3 not only controls the product within the liquid in the water tank 1, but also assists the conveyor belt 2 in moving the product towards the discharge direction.
[0042] The water tank 1 has a feed inlet 18 and a steam inlet 19. The blow nozzle 4 can be made into an air curtain, with the blowing angle directed towards the edge of the water tank 1 to ensure that the product adhering to the inner wall of the water tank 1 can be blown away and then conveyed towards the discharge direction along with the conveyor to the baffle.
[0043] Clean water is added to tank 1 above the return section of the upper pressure belt 3, and then heated to the set temperature. The product is fed into tank 1 through the inlet 18. The conveyor belt 2 is started, and the running speed is set to ensure that the sterilization time of the product meets the requirements. During the water bath sterilization process, most of the product will be carried backward by the baffle of the conveyor belt 2, i.e., conveyed towards the discharge direction. Some products will adhere to the inner edge of tank 1 and remain stationary. A first fixing rod 6 and a second fixing rod 7 are installed on the two inner side walls of tank 1. Twelve purge nozzles 4 are placed on the first fixing rod 6 and the second fixing rod 7 respectively. Position 4 is 3 to 5 centimeters above the water surface of tank 1. The airflow of the product retention cleaning mechanism is activated periodically, blowing towards the inner edge of tank 1 to remove attached products. The air pressure can be adjusted via a pressure regulating valve, and the backflushing pulse width is controlled by the pulse jet cleaner 10. The product is swept sequentially from front to back to avoid turbulence and irregular product movement, preventing it from spinning in place within tank 1. Products blown away from tank 1 flow to the middle of tank 1 under the influence of the airflow and are then carried to the rear of tank 1 by the baffles of the repeatedly rotating conveyor belt 2, ultimately exiting the water bath sterilization device. This invention effectively combines conveyor belt transport and gas backflushing to solve the problem of product retention within the water bath sterilization device, preventing excessive product retention from affecting product quality, achieving effective sterilization, and improving the first-pass yield.
[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A water bath sterilization device with product retention and cleaning function, characterized in that, The system includes a water tank (1), a conveyor belt (2) and an upper pressure belt (3) located inside the water tank (1). The conveyor belt (2) is equipped with a baffle. The upper pressure belt (3) is located above the conveyor belt (2) and can press the product into the liquid in the water tank (1). The system also includes a product retention cleaning mechanism, which includes a blowing nozzle (4) that can blow the product away from the inner edge of the water tank (1). The blowing nozzle (4) is located above the liquid level in the water tank (1). The blowing nozzle (4) is connected to an air supply source through an air supply pipe (5). The blowing nozzle (4) includes a first blowing nozzle (4) and a second blowing nozzle (4). The first blowing nozzle (4) is located on one side wall of the water tank (1), and the second blowing nozzle (4) is located on the other side wall of the water tank (1).
2. The water bath sterilization device with product retention cleaning function according to claim 1, characterized in that, Multiple first purging nozzles (4) are provided, and a first fixing rod (6) is provided on one side wall of the water tank (1), and multiple first purging nozzles (4) are respectively provided on the first fixing rod (6); and / or multiple second purging nozzles (4) are provided, and a second fixing rod (7) is provided on the other side wall of the water tank (1), and multiple second purging nozzles (4) are respectively provided on the second fixing rod (7).
3. The water bath sterilization device with product retention cleaning function according to claim 1, characterized in that, The first purging nozzle (4) and the second purging nozzle (4) are respectively 3-5 cm higher than the liquid level of the water tank (1).
4. The water bath sterilization device with product retention cleaning function according to claim 1, characterized in that, The gas supply pipeline (5) is also equipped with a solenoid valve (9) and a pulse jet nozzle (10).
5. The water bath sterilization device with product retention cleaning function according to claim 4, characterized in that, It also includes an air tank (8), which has an air outlet connected to the air supply source and multiple air supply ports for connecting to the air supply pipeline (5), and the pulse jet blower (10) is installed on the air tank (8).
6. The water bath sterilization device with product retention cleaning function according to any one of claims 1-5, characterized in that, A one-way valve (11) is provided on the gas supply pipeline (5).
7. The water bath sterilization device with product retention cleaning function according to any one of claims 1-5, characterized in that, The air outlets of the first purging nozzle (4) and / or the second purging nozzle (4) blow air toward the inner edge of the water tank (1).
8. The water bath sterilization device with product retention cleaning function according to any one of claims 1-5, characterized in that, The conveyor belt (2) rotates under the action of the conveyor belt drive mechanism; the conveyor belt drive mechanism includes a conveyor belt drive wheel (12), a conveyor belt driven wheel (14) and a conveyor belt drive motor (13) for driving the conveyor belt drive wheel (12) to rotate, and the conveyor belt (2) is wrapped around the conveyor belt drive wheel (12) and the conveyor belt driven wheel (14).
9. The water bath sterilization device with product retention cleaning function according to any one of claims 1-5, characterized in that, The upper pressure belt (3) rotates under the action of the pressure belt drive mechanism; the pressure belt drive mechanism includes a pressure belt drive wheel (15), a pressure belt driven wheel (17) and a pressure belt drive motor (16) for driving the pressure belt drive wheel (15) to rotate, and the upper pressure belt (3) is wrapped around the pressure belt drive wheel (15) and the pressure belt driven wheel (17).