Movable large-flow sterilization liner structure

Abstract

The utility model provides a movable large-flow sterilization liner structure which comprises a shell, a centrifugal fan connected to one side of the shell and an airflow guide outlet formed in the top of the shell, a heating cavity is formed in the shell, a nozzle is arranged at the bottom of the heating cavity, an opening of the nozzle faces upwards, and the airflow guide outlet is formed in the top of the shell. The atomizing nozzle is used for spraying the atomized hydrogen peroxide solution upwards from the nozzle into the heating cavity to be heated and gasified, and the centrifugal fan is used for blowing out hydrogen peroxide gas from the airflow guide outlet; the gasification device improves the gasification effect of the hydrogen peroxide solution.

Description

Technical Field

[0001] The utility model relates to the field of sterilization equipment, in particular to a mobile large-flow sterilization inner container structure. Background Technique

[0002] The mobile large-flow sterilization equipment is designed for mobile biological sterilization in a clean, dry and sealed isolation area. It adopts the vaporized hydrogen peroxide process technology, and utilizes the advantage that hydrogen peroxide has stronger spore killing ability in the gaseous state than in the liquid state at room temperature to meet the requirements of complete sterilization. This technology is often used for sterilization in closed spaces such as isolation rooms and isolators. Vaporized hydrogen peroxide sterilization is dry, fast-acting, non-toxic and residue-free, and has good material compatibility. It is applicable to the sterilization and disinfection of the surfaces of rooms, biological safety cabinets, transfer windows, isolators and medical devices. The biological purification time is short, it is effective against a wider range of microorganisms, no toxic residues are produced during the biological sterilization cycle, and it is easy to verify. However, the existing large-scale sterilization equipment has the following disadvantages:

[0003] ① Due to the too large volume of the inner container of the equipment, the vaporized hydrogen peroxide products generated by the uneven temperature in the inner container return to the atomized state when encountering cold, resulting in poor sterilization effect;

[0004] ② Due to the uneven temperature of the heating inner container, the vaporized hydrogen peroxide liquefies and flows back, causing liquid accumulation on the lower surface of the inner container, and then triggering equipment failures. Content of the Utility Model

[0005] The purpose of the utility model is to provide a mobile large-flow sterilization inner container structure that improves the vaporization effect of hydrogen peroxide solution.

[0006] To solve the above technical problems, the utility model provides a mobile large-flow sterilization inner container structure, which includes a housing, a centrifugal fan connected to one side of the housing, and an air flow outlet arranged at the top of the housing. The interior of the housing has a heating chamber, a nozzle is arranged at the bottom of the heating chamber, and the opening of the nozzle faces upward, so that the atomized hydrogen peroxide solution is sprayed upward from the nozzle into the heating chamber for heating and vaporization, and the centrifugal fan blows the hydrogen peroxide gas out from the air flow outlet.

[0007] Further, an air inlet path and a liquid inlet path are connected to one side of the nozzle, so that compressed air enters the nozzle through the air inlet path, and the hydrogen peroxide solution enters the nozzle through the liquid inlet path.

[0008] Further, a plurality of exhaust plates are circumferentially and spacedly distributed on the centrifugal fan, so that when the outside air is inhaled to the centrifugal fan along the axial direction of the centrifugal fan, it blows into the heating chamber in the radial direction of the centrifugal fan along between the plurality of exhaust plates.

[0009] Further, a wind guiding plate is horizontally arranged in the heating chamber, one side of the wind guiding plate is connected to the middle position of the centrifugal fan close to the heating chamber, and the other side is located at the side of the nozzle.

[0010] Further, the outer periphery of the centrifugal fan is connected to the outer shell through a fixing frame.

[0011] Further, a protective cover is arranged on the outer periphery of the centrifugal fan.

[0012] Further, both the air inlet passage and the liquid inlet passage penetrate to the outside of the outer shell, and fixing flanges are arranged at the penetration positions.

[0013] Further, a heat-conducting silicone grease, a heating plate and a heat-insulating cotton are sequentially laid on the outside of the outer shell.

[0014] The beneficial effects of the present utility model are as follows: the hydrogen peroxide solution is directly dispersed into an atomized state through the nozzle and sprayed out, so that the atomized hydrogen peroxide is more easily subjected to the heating and gasification action of the heating chamber, improving the stability of the gasification process of hydrogen peroxide. At the same time, the centrifugal fan is cooperated to blow the hydrogen peroxide gas in the heating chamber, improving the rising speed of the hydrogen peroxide gas, so that the hydrogen peroxide gas can be sprayed out from the air flow outlet before reaching the condensation dew point, so as to avoid problems such as the hydrogen peroxide gas returning to the atomized state when encountering cold, or the hydrogen peroxide gas liquefying and flowing back to cause liquid accumulation on the lower surface of the inner tank. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model.

[0016] Figure 2 is a front view of the present utility model.

[0017] Figure 3 is a rear view of the present utility model.

[0018] Figure 4 is a schematic position diagram of the nozzle in the present utility model.

[0019] Figure 5 is a schematic connection diagram of the nozzle with the air inlet passage and the liquid inlet passage in the present utility model.

[0020] Figure 6 is a schematic structural diagram of the exhaust air plate in the present utility model.

[0021] Figure 7 is a schematic position diagram of the heat-conducting silicone grease, the heating plate and the heat-insulating cotton in the present utility model.

[0022] Reference numerals: 1, outer shell; 2, air flow outlet; 3, protective cover; 4, fixing bracket; 5, centrifugal fan; 6, fixing flange; 7, air inlet passage; 8, liquid inlet passage; 9, nozzle; 10, air guide plate; 11, exhaust plate; 12, thermal conductive silicone grease; 13, heating plate; 14, heat insulating cotton. Detailed implementation mode

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present invention.

[0024] Those skilled in the art should understand that in the disclosure of the present invention, the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting the present invention.

[0025] It can be understood that the term "one" should be understood as "at least one" or "one or more". That is, in one embodiment, the number of an element can be one, and in other embodiments, the number of the element can be multiple. The term "one" should not be construed as a limitation on the number.

[0026] As Figure 1-7 described, the present invention provides a mobile large-flow sterilization inner tank structure, including an outer shell 1, a centrifugal fan 5 connected to one side of the outer shell 1, and an air flow outlet 2 provided at the top of the outer shell 1. The inner part of the outer shell 1 has a heating chamber. A nozzle 9 is provided at the bottom of the heating chamber, and the opening of the nozzle 9 faces upward, so that the atomized hydrogen peroxide solution is sprayed upward from the nozzle 9 into the heating chamber for heating and gasification, and the hydrogen peroxide gas is blown out from the air flow outlet 2 by the centrifugal fan 5.

[0027] The hydrogen peroxide solution is directly dispersed into an atomized state through the nozzle and sprayed out, so that the atomized hydrogen peroxide is more easily subjected to the heating and gasification effect of the heating chamber, improving the stability of the gasification process of hydrogen peroxide. At the same time, the centrifugal fan is used to blow the hydrogen peroxide gas in the heating chamber, increasing the rising speed of the hydrogen peroxide gas, so that the hydrogen peroxide gas can be sprayed out from the air flow outlet before reaching the dew point, avoiding problems such as the hydrogen peroxide gas returning to the atomized state when it meets cold, or the hydrogen peroxide gas liquefying and flowing back, resulting in liquid accumulation on the lower surface of the inner tank.

[0028] In a preferred embodiment of the present scheme, the outside of the outer shell 1 is sequentially coated with thermal grease 12, a heating plate 13 and thermal insulation cotton 14, so that the heating chamber inside the outer shell can be heated by the heating plate, and the thermal grease ensures the heat conduction efficiency of the heating plate. At the same time, the outer side of the heating plate is insulated by the thermal insulation cotton to prevent heat from escaping to the outside of the outer shell, thereby improving the thermal insulation effect inside the heating chamber; in one embodiment of the present scheme, a total of 9 220V heating plates are used.

[0029] Among them, the internal temperature of the heating chamber is 80°C; the heating chamber is made of 6061 aluminum alloy plate, and the inner surface is anodized to generate a 20-25μm oxide layer to prevent corrosion by vaporized hydrogen peroxide. At the same time, the structure of the heating chamber is designed with upper and lower closing forms, which can make the vaporized hydrogen peroxide flow smoothly discharged under the wind pressure of the centrifugal fan.

[0030] Preferably, one side of the nozzle 9 is connected to an air inlet path 7 and a liquid inlet path 8 , so that the compressed air enters the nozzle 9 through the air inlet path 7 , and the hydrogen peroxide solution enters the nozzle 9 through the liquid inlet path 8 .

[0031] Specifically, a medical-grade 35% hydrogen peroxide solution is injected into the nozzle through the liquid inlet path, and compressed air is injected into the nozzle through the air inlet path, so that the compressed air and the hydrogen peroxide solution form a gas-liquid mixed state, and then the air pressure carried by the compressed air causes the hydrogen peroxide in the gas-liquid mixed state to be sprayed outward to ensure the uniformity of the hydrogen peroxide atomization state.

[0032] The outer end of the air inlet is connected to a hydrogen peroxide storage device, and the hydrogen peroxide is transported through a pump body, and the outer end of the liquid inlet is connected to an external compressed air device.

[0033] Preferably, the centrifugal fan 5 is provided with a plurality of exhaust plates 11 spaced apart along the circumferential direction, so that after the outside air is sucked into the centrifugal fan 5 along the axial direction of the centrifugal fan 5 , it is blown into the heating chamber along the radial direction of the centrifugal fan 5 between the plurality of exhaust plates 11 .

[0034] Specifically, after the external air is drawn into the inside of the centrifugal fan through the centrifugal fan, due to the arrangement of a number of exhaust plates, the air can only be discharged into the heating chamber along the radial direction of the centrifugal fan, thereby preventing the centrifugal fan from directly blowing the inner wall of the heating chamber, thereby preventing the hydrogen peroxide in the atomized state from being stably discharged from the air flow outlet.

[0035] Preferably, an air guide plate 10 is horizontally arranged in the heating chamber, and one side of the air guide plate 10 is connected to the centrifugal fan 5 near the middle of the heating chamber, and the other side is located on the side of the nozzle 9.

[0036] Specifically, through the setting of the air deflector, when air blows into the heating chamber along the radial direction of the centrifugal fan through the exhaust air plate, the air flow path is evenly distributed along the circumferential direction of the centrifugal fan. At this time, the air flowing into the heating chamber is separated into upper and lower layers by the air deflector. The upper-layer air generates an inclined upward blowing force on the hydrogen peroxide ejected from the nozzle, and the lower-layer air generates a bottom-to-top blowing force on the hydrogen peroxide at the nozzle, so that the hydrogen peroxide gas at the nozzle is overall subjected to an upward blowing effect, which is convenient for improving the discharge stability of the hydrogen peroxide gas.

[0037] Preferably, the outer periphery of the centrifugal fan 5 is connected to the housing 1 through the fixing frame 4, so that the centrifugal fan can increase the stability after installation through the fixing frame, thereby improving the suction stability of the air.

[0038] Preferably, a protective cover 3 is arranged on the outer periphery of the centrifugal fan 5 to protect the outer periphery of the centrifugal fan and prevent foreign objects from entering the centrifugal fan by mistake.

[0039] Preferably, both the air inlet passage 7 and the liquid inlet passage 8 penetrate to the outside of the housing 1, and fixing flanges 6 are provided at the penetration positions.

[0040] Specifically, the air inlet passage and the liquid inlet passage are fixed by the fixing flanges to ensure the stability of liquid inlet and air inlet. At the same time, the sealing performance of the penetration position can be ensured by the fixing flanges to prevent the hydrogen peroxide from escaping outward from the penetration position.

[0041] The present utility model is not limited to the above best implementation manner. Any person can obtain other various forms of products under the inspiration of the present utility model. However, no matter what changes are made in its shape or structure, as long as it has the same or similar technical solutions as the present application, they all fall within the protection scope of the present utility model.

Claims

1. A mobile large flow sterilization liner structure, characterized by: The invention comprises a housing (1), a centrifugal fan (5) connected to one side of the housing (1), and an air flow outlet (2) arranged at the top of the housing (1); the housing (1) has a heating chamber inside, a nozzle (9) is arranged at the bottom of the heating chamber, and the opening of the nozzle (9) is arranged upward, so that atomized hydrogen peroxide solution is sprayed upward from the nozzle (9) into the heating chamber for heating and gasification, and the centrifugal fan (5) blows the hydrogen peroxide gas out of the air flow outlet (2).

2. The mobile large flow sterilization liner structure according to claim 1 is characterized by: One side of the nozzle (9) is connected to an air inlet path (7) and a liquid inlet path (8), so that compressed air enters the nozzle (9) from the air inlet path (7) and hydrogen peroxide solution enters the nozzle (9) from the liquid inlet path (8).

3. The mobile large flow sterilization liner structure according to claim 1 is characterized in that: The centrifugal fan (5) is provided with a plurality of exhaust plates (11) spaced apart along the circumference, so that after the outside air is sucked into the centrifugal fan (5) along the axial direction of the centrifugal fan (5), it is blown into the heating chamber in the radial direction of the centrifugal fan (5) along the spaces between the plurality of exhaust plates (11).

4. The mobile large flow sterilization liner structure according to claim 1 is characterized in that: An air guide plate (10) is horizontally arranged in the heating chamber, and one side of the air guide plate (10) is connected to the centrifugal fan (5) near the middle of the heating chamber, and the other side is located on the side of the nozzle (9).

5. The mobile large flow sterilization liner structure according to claim 1 is characterized in that: The outer periphery of the centrifugal fan (5) is connected to the outer casing (1) via a fixing frame (4).

6. The mobile large flow sterilization liner structure according to claim 1 is characterized by: A protective cover (3) is arranged on the outer periphery of the centrifugal fan (5).

7. The mobile large flow sterilization liner structure according to claim 2 is characterized in that: The air inlet path (7) and the liquid inlet path (8) are both penetrated to the outside of the housing (1), and a fixing flange (6) is provided at the penetration position.

8. The mobile large flow sterilization liner structure according to claim 1 is characterized by: The exterior of the housing (1) is coated with heat-conducting silicone grease (12), a heating plate (13) and heat-insulating cotton (14) in sequence.

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