A sterilization device

Abstract

The utility model relates to the technical field of sterilization, disclose a kind of sterilization device, and the sterilization device includes sterilization cabinet body: the top of the sterilization cabinet body is also provided with the air inlet pipeline that can pass into pure steam into sterilization cabinet body;The two sides of the sterilization cabinet body are connected with the two ends of air pipe correspondingly;Heating heat exchanger and cooling heat exchanger are provided on the air pipe;Cooling heat exchanger and sterilization cabinet body between are provided with the air inlet fan for the air inlet of air pipe. Air inlet pipeline is used to pass into pure steam into sterilization cabinet body, and the product placed in sterilization cabinet body is sterilized by the high temperature of pure steam;Stop passing into pure steam, start air inlet fan, the gas in sterilization cabinet body enters cooling heat exchanger, gas-liquid separation, water vapor in gas is cooled into condensate and remains in cooling heat exchanger, and the gas left in gas enters heating heat exchanger and is heated back into sterilization cabinet body and continuously heats and dries product.

Description

Technical Field

[0001] This utility model relates to the field of sterilization technology, specifically to a sterilization device. Background Technology

[0002] During the sterilization process, the quality of the liquid chamber of the powder-liquid dual-chamber bag product must be ensured. After sterilization, the powder chamber of the sterilized product must be dried. After drying, it is essential to ensure that there is no water accumulation on the surface of the powder-liquid dual-chamber bag and that the moisture content inside the powder chamber meets the production requirements.

[0003] Existing sterilization equipment only sterilizes the product and does not have a drying function; existing sterilization equipment only dries the outer surface of the product and does not dry the inside of the powder, which does not meet the production requirements of the powder-liquid dual-chamber bag.

[0004] Without a drying function, the existing sterilization equipment's program control methods lack control over the drying process, making it inconvenient for the production of powder-liquid dual-chamber bags. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a sterilization device that dries the outer surface of the product but not the inside of the powder, thus failing to meet the production requirements of the powder-liquid dual-chamber bag.

[0006] A sterilization device includes a sterilization cabinet: the top of the sterilization cabinet is provided with an air inlet pipe for introducing pure steam into the sterilization cabinet; the two sides of the sterilization cabinet are connected to the two ends of an air duct; a heating heat exchanger and a cooling heat exchanger are provided on the air duct; and an air intake fan for introducing air into the air duct is provided between the cooling heat exchanger and the sterilization cabinet.

[0007] Furthermore, an exhaust fan for drawing air into the sterilization cabinet is provided between the heating heat exchanger and the sterilization cabinet.

[0008] Furthermore, a first drain pipe is provided on the cooling heat exchanger, and a second drain pipe is provided at the bottom of the sterilization cabinet.

[0009] Furthermore, the sterilization cabinet is equipped with an internal heat exchanger for heating the interior of the sterilization cabinet.

[0010] Furthermore, the internal heat exchanger includes a first internal heat exchanger disposed on one side of the sterilization cabinet and a second internal heat exchanger disposed on the other side of the sterilization cabinet.

[0011] Furthermore, the air intake pipe is provided with a first air intake port for pure steam to enter, and a second air intake port for pure compressed air to enter.

[0012] Furthermore, a fan is installed on the top of the sterilization cabinet.

[0013] Beneficial effects: The air inlet pipe is used to introduce pure steam into the sterilization chamber, and the high temperature of the pure steam sterilizes the products placed inside the sterilization chamber. When the pure steam is stopped, the air inlet fan is started, and the gas inside the sterilization chamber enters the cooling heat exchanger, where gas and liquid are separated. The water vapor in the gas is cooled into condensate and remains in the cooling heat exchanger, while the remaining gas enters the heating heat exchanger, is heated, and then returns to the sterilization chamber, maintaining the high-temperature environment inside the sterilization chamber. The above process is repeated until the product is dried to the production requirements. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the specification will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the device structure according to Embodiment 1 of this utility model;

[0016] Figure 2 This is a flowchart of the sterilization procedure control method of Embodiment 2 of this utility model.

[0017] In the diagram: 1. Sterilization cabinet; 201. First internal heat exchanger; 202. Second internal heat exchanger; 3. Air inlet pipe; 301. First air inlet; 302. Second air inlet; 4. Fan; 5. Product; 6. Exhaust fan; 7. Inlet fan; 8. Air duct; 9. Heating heat exchanger; 10. Cooling heat exchanger; 1101. First drain pipe; 1102. Second drain pipe. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. For ease of explanation, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "inner", "outer", "bottom", etc., used in this specification indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0019] It should be noted that the embodiments and features involved in the embodiments of this utility model can be combined with each other without conflict. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. Example

[0020] A sterilization device includes a sterilization cabinet 1. The top of the sterilization cabinet 1 is also provided with an air inlet pipe 3 that can introduce pure steam into the sterilization cabinet 1. The two sides of the sterilization cabinet 1 are connected to the two ends of the air duct 8 respectively. A heating heat exchanger 9 and a cooling heat exchanger 10 are provided on the air duct 8. An air inlet fan 7 is provided on the air duct 8. The air inlet fan 7 draws the gas in the sterilization cabinet 1 into the air duct 8. The gas flows through the cooling heat exchanger 10 and the heating heat exchanger 9 in sequence and then flows back into the sterilization cabinet 1.

[0021] In this embodiment, the air inlet pipe 3 is used to introduce pure steam into the sterilization cabinet 1, and the product 5 placed in the sterilization cabinet 1 is sterilized by the high temperature of the pure steam. When the pure steam is stopped, the air inlet fan 7 is started. After the gas in the sterilization cabinet 1 enters the cooling heat exchanger 10, gas-liquid separation occurs. The water vapor in the gas is cooled into condensate and remains in the cooling heat exchanger 10. The remaining gas enters the heating heat exchanger 9, is heated, and then returns to the sterilization cabinet 1 to maintain the high temperature environment in the sterilization cabinet 1. The above process is repeated until the product 5 is dried to the production requirements.

[0022] The air intake fan 7 is installed between the cooling heat exchanger 10 and the sterilization cabinet 1, and the exhaust fan 6 is installed between the heating heat exchanger 9 and the sterilization cabinet 1.

[0023] In this embodiment, the air intake fan 7 is used to intake air into the air duct 8, and the exhaust fan 6 is used to extract the gas in the air duct 8 into the sterilization cabinet 1; the air intake fan 7 and the exhaust fan 6 are set to ensure the direction and speed of gas flow in the air duct 8, and to ensure the drying process.

[0024] The cooling heat exchanger 10 is provided with a first drain pipe 1101 for draining condensate, and the sterilization cabinet 1 is provided with a second drain pipe 1102 for draining condensate at the bottom. The first drain pipe 1101 is located at the bottom of the cooling heat exchanger 10. It is drawn on the upper part of the cooling heat exchanger 10 in the figure for easy observation, but it should actually be located at the bottom.

[0025] In this embodiment, the first drain pipe 1101 and the second drain pipe 1102 are provided to facilitate the discharge of condensate.

[0026] The sterilization cabinet 1 is equipped with two internal heat exchangers, one of which is the first internal heat exchanger 201 and the other is the second internal heat exchanger 202.

[0027] In this embodiment, the first internal heat exchanger 201 and the second internal heat exchanger 202 are used to exchange heat with external industrial steam to preheat the gas inside the sterilization cabinet 1. Utilizing industrial steam recovers waste heat, which is relatively environmentally friendly.

[0028] The top of the sterilization cabinet 1 is provided with an air inlet pipe 3, which has a first air inlet 301 and a second air inlet 302. The first air inlet 301 is used to introduce pure steam into the sterilization cabinet 1, and the second air inlet 302 is used to introduce clean compressed air into the sterilization cabinet 1.

[0029] In this embodiment, clean compressed air is used to pressurize the air inside the sterilization cabinet 1, so as to facilitate the discharge of cooling water from the sterilization cabinet 1 and the cooling heat exchanger 10.

[0030] A fan 4 is installed on the top of the sterilization cabinet 1.

[0031] In this embodiment, the fan 4 is used to stir the pure steam introduced into the sterilization cabinet 1, so that the high-temperature pure steam passes evenly through the surface of the product 5, thereby achieving the purpose of heating the product 5.

[0032] The sterilization cabinet 1 is equipped with a temperature sensor and a pressure sensor, as well as a conventional control system connected to the temperature sensor and pressure sensor, which contains a control program. A conventional co-extruded membrane (not shown in the figure) can be installed on the product 5; the co-extruded membrane is used for the exudation of moisture from the powder cavity. Valves are respectively installed on the first air inlet 301, the second air inlet 302, the first drain pipe 1101, and the second drain pipe 1102. Example

[0033] like Figure 1 and Figure 2 As shown, a sterilization procedure control method applied to the above-mentioned sterilization device includes the following steps:

[0034] Step 1: Preheat; Step 2: Increase temperature; Step 3: Sterilize; Step 4: Dry; Step 5: Cool down; Step 6: Exhaust air; Step 7: End program.

[0035] Specifically, the first step is preheating: industrial steam is introduced into the first internal heat exchanger 201 and the second internal heat exchanger 202 to preheat the inside of the sterilizer until the temperature inside the sterilizer reaches the first set temperature value, and then proceed to the second step.

[0036] The second step is heating: the first internal heat exchanger 201 and the second internal heat exchanger 202 stop heating the inside of the sterilization cabinet, then pure steam is introduced into the sterilization cabinet and the fan 4 is turned on. The fan 4 blows the pure steam evenly onto the surface of the product 5 and heats the product 5 through the pure steam until the product temperature reaches the second set temperature value, and then proceeds to the third step.

[0037] The third step is sterilization: After maintaining the product temperature value at the second set temperature value for the first set time, and after the F0 value reaches the set value, sterilization is completed, and the process proceeds to the fourth step; the F0 value is the standard sterilization time in the existing technology; during sterilization, it is necessary to ensure that the pressure inside the sterilization cabinet reaches the first set pressure value to meet the requirements of the product manufacturing process;

[0038] Step 4, Drying: Turn off fan 4, turn on supply fan 4 and exhaust fan 6 to make the gas circulate between the air duct and the sterilization cabinet. The gas is cooled to the third set temperature value by cooling heat exchanger 10 to complete gas-liquid separation. Then, the cooled gas is heated to the fourth set temperature value by heating heat exchanger 9 and sent back into sterilization cabinet 1. At the same time, pure compressed air is introduced into sterilization cabinet 1 to pressurize it, and condensate is discharged through the first drain pipe 1101 and the second drain pipe 1102. After the drying time reaches the third set time, proceed to step 5.

[0039] Step 5, cooling: Turn off the heating heat exchanger 9, and after the temperature inside the sterilization cabinet 1 reaches the fifth set temperature value, turn off the cooling heat exchanger 10 and proceed to step 6;

[0040] Step 6, Exhausting: The second drain pipe 1102 at the bottom of the sterilization cabinet 1 also serves as an exhaust pipe to expel excess gas from the sterilization cabinet 1, so that the pressure inside the sterilization cabinet 1 reaches the second set pressure value, and then proceed to step 7; wherein, the set pressure value can be the indoor pressure value.

[0041] Step 7: The program ends.

[0042] In this embodiment, the above-described procedures allow for better control of the device, ensuring precise drying and sterilization of the powder. The set temperature, pressure, and time values ​​mentioned above can be adjusted according to the actual production process; specific settings are existing technology and will not be elaborated upon here.

[0043] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if such modifications and modifications fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and modifications.

Claims

1. A sterilization device, characterized in that, The system includes a sterilization cabinet: the top of the sterilization cabinet is equipped with an air inlet pipe that allows pure steam to be introduced into the sterilization cabinet; the two sides of the sterilization cabinet are connected to the two ends of the air duct; the air duct is equipped with a heating heat exchanger and a cooling heat exchanger; and an air intake fan for introducing air into the air duct is installed between the cooling heat exchanger and the sterilization cabinet.

2. The sterilization device according to claim 1, characterized in that, An exhaust fan is installed between the heat exchanger and the sterilization cabinet to draw air into the sterilization cabinet.

3. The sterilization device according to claim 2, characterized in that, The cooling heat exchanger is equipped with a first drain pipe, and the sterilization cabinet is equipped with a second drain pipe at the bottom.

4. The sterilization device according to claim 3, characterized in that, The sterilization cabinet is equipped with an internal heat exchanger for heating the interior of the sterilization cabinet.

5. A sterilization device according to claim 4, characterized in that, The internal heat exchanger includes a first internal heat exchanger located on one side of the sterilization cabinet and a second internal heat exchanger located on the other side of the sterilization cabinet.

6. A sterilization device according to claim 5, characterized in that, The air intake pipe is provided with a first air intake port for pure steam to enter and a second air intake port for pure compressed air to enter.

7. A sterilization device according to claim 6, characterized in that, A fan is installed on the top of the sterilization cabinet.

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