A powder-liquid dual-chamber bag water bath sterilization device

Abstract

This utility model relates to the field of sterilization equipment technology, specifically to a water bath sterilization device for powder-liquid dual-chamber bags, including a sterilization cabinet, a water recovery tank, a heating channel, and a drying channel. The water recovery tank is connected to the sterilization cabinet and is used to inject water into the sterilization cabinet. The heating channel is connected to the sterilization cabinet and is used to heat the water in the sterilization cabinet, and to sterilize the powder-liquid dual-chamber bags placed in the sterilization cabinet through the water bath. The drying channel is connected to the sterilization cabinet and is used to dry the powder-liquid dual-chamber bags in the sterilization cabinet. Previously, sterilization using a mixture of steam and air resulted in poor temperature uniformity across different parts of the powder-liquid dual-chamber bags when heated by hot gas. Compared to sterilization using a mixture of steam and air, water bath sterilization allows the liquid heating to permeate the entire powder-liquid dual-chamber bag, resulting in high temperature uniformity around the powder-liquid dual-chamber bag.

Description

Technical Field

[0001] This utility model relates to the field of sterilization device technology, specifically to a powder-liquid dual-chamber bag water bath sterilization device. Background Technology

[0002] In the pharmaceutical industry, the powder-liquid dual-chamber bag is an advanced infusion product. The same product has two isolated chambers: one for infusion and the other for solid sterile medication. Before sterilization, only one chamber contains the infusion, while the other chamber is sealed and unfilled with solid sterile medication (requiring high drying conditions). The medication is then filled after the sterilization and drying process. Powder-liquid dual-chamber bags are typically sterilized using a ventilated drying sterilizer. A mixture of steam and air is used for heating and sterilization, and any condensate is promptly drained. After sterilization, there is minimal residual water in the sterilizer, which facilitates the drying of the powder-liquid dual-chamber bag product. This is the main reason why a ventilated drying sterilizer is chosen for powder-liquid dual-chamber bags.

[0003] The powder and liquid dual-chamber bag product uses a ventilated drying sterilizer. The sterilization principle is as follows: steam enters the sterilizer, and the fan mixes the steam and the air inside the sterilizer and circulates and heats it up, sterilizing both the product and the air at the same temperature. The drying principle is as follows: clean compressed air replaces the humid air, and at the same time, the humid air inside the sterilizer circulates. After cooling, the condensate is drained, and then the air is heated up and returned to the sterilizer for circulation to achieve the product drying effect.

[0004] Ventilated and dry sterilizers use a large number of fans, and the high-temperature and high-pressure fans have a high failure rate in sealing, which can easily cause the entire cabinet of products to be scrapped. Ventilated and dry sterilizers generally use a mixture of steam and air for sterilization, which results in poor uniformity of sterilization temperature in different parts of the powder and liquid dual-chamber bag. Ventilated and dry sterilizers use clean air to replace humid air, which consumes a large amount of clean compressed air. Utility Model Content

[0005] To address the problems existing in the prior art, the purpose of this utility model is to provide a powder-liquid dual-chamber bag water bath sterilization device, which solves the problem that the existing ventilated drying sterilization cabinets generally use a mixture of steam and air for sterilization, resulting in poor uniformity of sterilization temperature for different parts of the powder-liquid dual-chamber bag.

[0006] A powder-liquid dual-chamber bag water bath sterilization device includes a sterilization cabinet, a water recovery storage tank, a heating channel, and a drying channel;

[0007] The water recovery storage tank is connected to the sterilization cabinet and is used to inject water into the sterilization cabinet; the heating channel is connected to the sterilization cabinet and is used to heat the water in the sterilization cabinet and sterilize the powder-liquid dual-chamber bags placed in the sterilization cabinet through a water bath; the drying channel is connected to the sterilization cabinet and is used to dry the powder-liquid dual-chamber bags in the sterilization cabinet.

[0008] Furthermore, one end of the heating channel is connected to the sterilizer via a first valve, and the other end is connected to the sterilizer via a second valve;

[0009] The heating channel is equipped with a circulating pump and a first heat exchanger.

[0010] Furthermore, the first heat exchanger is connected to a steam passage via a third valve and to a cooling water passage via a fourth valve.

[0011] Furthermore, one end of the drying channel is connected to the sterilizer via a fifth valve, and the other end is connected to the sterilizer via a sixth valve;

[0012] The drying channel is equipped with a second heat exchanger, a fan, and a third heat exchanger.

[0013] Furthermore, the second heat exchanger is connected to the cooling water channel via the seventh valve; the third heat exchanger is connected to the steam channel via the eighth valve and to the cooling water channel via the ninth valve.

[0014] Furthermore, the heating channel is connected to the water recovery storage tank, and a tenth valve is provided between the heating channel and the water recovery storage tank to control the connection between the heating channel and the water recovery storage tank.

[0015] Furthermore, the water recovery storage tank is connected to the clean compressed air channel via the eleventh valve.

[0016] Furthermore, a twelfth valve is installed between the water recovery storage tank and the sterilization cabinet.

[0017] Beneficial effects: The original method of sterilization using a mixture of steam and air resulted in poor temperature uniformity in different parts of the powder-liquid double-chamber bag due to the hot gas heating. In contrast, water bath sterilization allows the liquid to immerse the entire powder-liquid double-chamber bag, resulting in high temperature uniformity around the bag. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0020] In the diagram: 1. Sterilization cabinet; 2. Water recovery tank; 301. First heat exchanger; 302. Second heat exchanger; 303. Third heat exchanger; 4. Circulation pump; 5. Fan; 601. First valve; 602. Second valve; 603. Third valve; 604. Fourth valve; 605. Fifth valve; 606. Sixth valve; 607. Seventh valve; 608. Eighth valve; 609. Ninth valve; 610. Tenth valve; 611. Eleventh valve; 612. Twelfth valve. Detailed Implementation

[0021] 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.

[0022] 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.

[0023] like Figure 1 The powder-liquid dual-chamber bag water bath sterilization device shown includes a sterilization cabinet 1, a water recovery storage tank 2, a heating channel and a drying channel;

[0024] Water recovery tank 2 is connected to sterilizer 1 and is used to fill sterilizer 1 with water; heating channel is connected to sterilizer 1 and is used to heat the water in sterilizer 1 and sterilize the powder-liquid dual-chamber bags placed in sterilizer 1 through a water bath; drying channel is connected to sterilizer 1 and is used to dry the powder-liquid dual-chamber bags in sterilizer 1. Sterilizer 1 is prior art.

[0025] In this embodiment, the original method of sterilization using a mixture of steam and air resulted in poor uniformity of sterilization temperature across different parts of the powder-liquid double-chamber bag due to the hot gas heating. In contrast, water bath sterilization, using a mixture of steam and air, allows the liquid heating to permeate the entire powder-liquid double-chamber bag, resulting in high temperature uniformity around the bag.

[0026] One end of the heating channel is connected to the sterilizer 1 via the first valve 601, and the other end is connected to the sterilizer 1 via the second valve 602. A circulating pump 4 and a first heat exchanger 301 are installed on the heating channel. The first heat exchanger 301 is connected to a steam channel via the third valve 603 and to a cooling water channel via the fourth valve 604.

[0027] In this embodiment, by controlling the opening and closing of the valve, the water in the sterilizer 1 can be controlled to enter the heating channel. Under the action of the circulating pump 4 on the heating channel, the water circulates in the sterilizer 1 and the heating channel. The water is heated by the action of the first heat exchanger 301, and the heated water can heat the double-chamber bag in the sterilizer 1.

[0028] One end of the drying channel is connected to the sterilizer 1 via the fifth valve 605, and the other end is connected to the sterilizer 1 via the sixth valve 606. The drying channel is equipped with a second heat exchanger 302, a fan 5, and a third heat exchanger 303. The second heat exchanger 302 is connected to the cooling water channel via the seventh valve 607. The third heat exchanger 303 is connected to the steam channel via the eighth valve 608 and to the cooling water channel via the ninth valve 609.

[0029] In this embodiment, the fan 5 is used to realize the circulation of gas between the drying channel and the sterilization cabinet 1. The second heat exchanger 302 can cool the gas in the sterilization cabinet 1 to achieve gas-liquid separation. The gas after gas-liquid separation is heated by the third heat exchanger 303. The heated gas enters the sterilization cabinet 1, carries away the liquid in the sterilization cabinet 1 and enters the second heat exchanger 302 for gas-liquid separation.

[0030] The heating channel is connected to the water recovery storage tank 2, and a tenth valve 610 is provided between the heating channel and the water recovery storage tank 2 to control the connection between the heating channel and the water recovery storage tank 2;

[0031] In this embodiment, the heating channel is connected to the water recycling tank 2, which enables water recycling and saves water resources.

[0032] Water recovery storage tank 2 is connected to the clean compressed air passage via valve 611.

[0033] In this embodiment, the introduction of clean compressed air can adjust the air pressure inside the sterilizer 1.

[0034] A twelfth valve 612 is installed between the water recovery storage tank 2 and the sterilization cabinet 1.

[0035] In this embodiment, the twelfth valve 612 is used to control the flow of water between the water recovery storage tank 2 and the sterilization cabinet 1.

[0036] Working principle: Water injection: Open the eleventh valve 611 and the twelfth valve 612 to add water into the sterilizer 1 through the water recovery storage tank 2;

[0037] Heating: Close the twelfth valve 612, open the first valve 601, the second valve 602 and the circulating water pump to complete the circulation of water in the sterilizer 1 and the heating channel, and heat the water through the first heat exchanger 301;

[0038] Sterilization: After the water is heated to a certain temperature, the powder and liquid double-chamber bag placed in sterilizer 1 is subjected to a water bath to complete the sterilization.

[0039] Recovery: Close the second valve 602, open the tenth valve 610, and use the circulating water pump to recover the water in the sterilizer 1 and heating channel into the water recovery storage tank 2, and then close the first valve 601;

[0040] Drying: Open the fifth valve 605 and the sixth valve 606, and turn on the fan 5 to allow the gas in the sterilizer 1 to circulate between the sterilizer 1 and the drying channel. The humid gas is separated into gas and liquid by the second heat exchanger 302, and then heated by the third heat exchanger 303. The heated gas returns to the sterilizer 1 and carries water vapor into the drying channel to complete the gas-liquid separation and circulate for drying.

[0041] Cooling: After drying is completed, the gas inside the sterilizer 1 is cooled by the second heat exchanger 302 and the third heat exchanger 303.

[0042] Pressure relief: The sterilizer 1 is equipped with an exhaust port for venting air outwards, which is existing technology and is not shown in the figure.

[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 powder-liquid dual chamber bag water bath sterilization device, characterized by, Includes sterilization cabinets, water recovery tanks, heating channels, and drying channels; The water recovery storage tank is connected to the sterilization cabinet and is used to inject water into the sterilization cabinet; the heating channel is connected to the sterilization cabinet and is used to heat the water in the sterilization cabinet and sterilize the powder-liquid dual-chamber bags placed in the sterilization cabinet through a water bath; the drying channel is connected to the sterilization cabinet and is used to dry the powder-liquid dual-chamber bags in the sterilization cabinet.

2. The powder-liquid dual-chamber bag water bath sterilization device according to claim 1, characterized in that, One end of the heating channel is connected to the sterilizer via a first valve, and the other end is connected to the sterilizer via a second valve; The heating channel is equipped with a circulating pump and a first heat exchanger.

3. The powder-liquid dual-chamber bag water bath sterilization device according to claim 2, characterized in that, The first heat exchanger is connected to a steam passage via a third valve and to a cooling water passage via a fourth valve.

4. The powder-liquid dual-chamber bag water bath sterilization device according to claim 2, characterized in that, One end of the drying channel is connected to the sterilizer via the fifth valve, and the other end is connected to the sterilizer via the sixth valve; The drying channel is equipped with a second heat exchanger, a fan, and a third heat exchanger.

5. The powder-liquid dual-chamber bag water bath sterilization device according to claim 4, characterized in that, The second heat exchanger is connected to the cooling water channel via the seventh valve; the third heat exchanger is connected to the steam channel via the eighth valve and to the cooling water channel via the ninth valve.

6. The powder-liquid dual-chamber bag water bath sterilization device according to claim 2, characterized in that, The heating channel is connected to the water recovery storage tank, and a tenth valve is installed between the heating channel and the water recovery storage tank to control the connection between the heating channel and the water recovery storage tank.

7. The powder-liquid dual-chamber bag water bath sterilization device according to claim 2, characterized in that, The water recovery storage tank is connected to the clean compressed air channel via the eleventh valve.

8. The powder-liquid dual-chamber bag water bath sterilization device according to claim 2, characterized in that, A twelfth valve is installed between the water recovery storage tank and the sterilization cabinet.

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