Nitrogen protection pipeline of ethylene oxide sterilizer

Abstract

The utility model discloses an ethylene oxide sterilizer nitrogen protection pipeline which comprises a first protection cylinder installed outside a gas inlet of an ethylene oxide gas cylinder of an ethylene oxide sterilizer, a valve body is fixedly connected to the center of the interior of the first protection cylinder, and one end of the valve body is fixedly connected with a gas pressing pipe. A motor is fixedly connected to the outer wall of the first protection barrel, a motor driving shaft penetrates through the valve body and is fixedly connected with a ball, a linear channel is formed in the ball, and a pressurization bottle is arranged at the top of the first protection barrel. The first protective cylinder, the valve body and the second protective cylinder are matched with one another, so that the ethylene oxide gas cylinder and the gas supply pipeline can be conveniently protected, aging at the joint is reduced, meanwhile, high-pressure gas enables the joint not to easily leak gas outwards, and when leakage occurs at the joint between the nitrogen pressurizing pipe and the ethylene oxide gas cylinder, the gas supply pipeline is prevented from being damaged. Leaked gas can be absorbed, ethylene oxide gas leakage is prevented, and the personal safety of workers is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilizer protection pipelines, in particular to a nitrogen protection pipeline for an ethylene oxide sterilizer. Background Technique

[0002] Ethylene oxide gas, also known as ethylene oxide gas, commonly known as EO, is the most effective gas sterilant known. The ethylene oxide sterilizers on the market are devices commonly used for sterilizing heat-moisture sensitive items. The sterilization principle of ethylene oxide is to carry out alkylation reactions with sulfhydryl (-SH), amino (-NH2), hydroxyl (-OH) and carboxyl (-COOH) on protein molecules as well as imino (-NH-) on nucleic acid molecules, causing the protein to lose reactive groups, hindering the normal biochemical reactions and metabolism of the protein, resulting in the death of microorganisms, thereby achieving the sterilization effect.

[0003] Currently, most ethylene oxide is released into the sterilizer by pressing nitrogen into the ethylene oxide gas cylinder. However, during the use process, the connection between the nitrogen pressure pipe and the ethylene oxide gas cylinder is prone to aging after a long time of use, and then becomes loose or even leaks. The leakage of ethylene oxide gas is likely to have an adverse impact on the physical health of the staff and pollute the environment at the same time. Therefore, we propose to design a nitrogen protection pipeline for an ethylene oxide sterilizer. Content of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Simplifications or omissions may be made in this part as well as in the abstract of the specification and the title of the utility model of this application to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] To solve the above technical problems, according to one aspect of the utility model, the following technical solutions are provided by the utility model:

[0006] A nitrogen protection pipeline for an ethylene oxide sterilizer includes a first protective cylinder installed outside the air inlet of the ethylene oxide gas cylinder of the ethylene oxide sterilizer. A valve body is fixedly connected to the center inside the first protective cylinder. One end of the valve body is fixedly connected to a pressure pipe. A motor is fixedly connected to the outer wall of the first protective cylinder. The driving shaft of the motor penetrates through the valve body and is fixedly connected to a sphere. A linear passage is opened inside the sphere. A pressurized bottle is arranged on the top of the first protective cylinder. A second protective cylinder is arranged at the bottom of the first protective cylinder. Absorbent particles are filled inside the second protective cylinder.

[0007] As a preferred embodiment of the nitrogen protection pipeline of the ethylene oxide sterilizer of the present utility model, the pressure pipeline penetrates through the first protective cylinder and is connected to an external nitrogen cylinder, facilitating the fixed connection of one end of the valve body away from the pressure pipeline to a connecting pipe, and the connecting pipe is connected to the intake port of the ethylene oxide cylinder of the ethylene oxide sterilizer. By releasing gas from the nitrogen cylinder, it is convenient to press the ethylene oxide in the ethylene oxide cylinder into the sterilizer for release.

[0008] As a preferred embodiment of the nitrogen protection pipeline of the ethylene oxide sterilizer of the present utility model, both ends of the one-way passage are respectively connected to the pressure pipeline and the connecting pipe in correspondence. By driving the sphere to rotate through a motor, it is convenient to control the opening and closing of the passage between the pressure pipeline and the connecting pipe.

[0009] As a preferred embodiment of the nitrogen protection pipeline of the ethylene oxide sterilizer of the present utility model, the bottom of the pressurized bottle is connected to the inside of the first protective cylinder, a gas valve is provided at the mouth of the pressurized bottle, and a pressure gauge is provided at the top of the first protective cylinder. By filling the first protective cylinder with a protective gas, once ethylene oxide leaks inside the first protective cylinder, the ethylene oxide can quickly come into contact with the absorption particles inside the second protective cylinder and be absorbed.

[0010] As a preferred embodiment of the nitrogen protection pipeline of the ethylene oxide sterilizer of the present utility model, nitrogen is provided inside the pressurized bottle as a protective gas, facilitating the protection of the joint and preventing the leakage of ethylene oxide.

[0011] As a preferred embodiment of the nitrogen protection pipeline of the ethylene oxide sterilizer of the present utility model, the bottom of the first protective cylinder is fixedly connected to an adapter, and the adapter is threadedly connected to the top of the second protective cylinder, facilitating the replacement of the second protective cylinder and the absorption particles inside it.

[0012] Compared with the prior art, the beneficial effects of the present utility model are:

[0013] Through the mutual cooperation among the first protective cylinder, the valve body and the second protective cylinder, the present utility model facilitates the protection between the ethylene oxide cylinder and the gas supply pipeline, reduces the aging of the connection, and at the same time, the high-pressure gas makes it more difficult for the connection to leak gas outward. When there is a leak at the connection between the nitrogen pressurization pipeline and the ethylene oxide cylinder, the leaked gas can be absorbed to prevent the leakage of ethylene oxide gas and protect the personal safety of the staff. Description of the Drawings

[0014] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below in conjunction with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings. Among them:

[0015] Figure 1 It is a schematic structural diagram of a nitrogen protection pipeline of an ethylene oxide sterilizer of the present utility model;

[0016] Figure 2 It is a schematic diagram of the valve body of a nitrogen protection pipeline of an ethylene oxide sterilizer of the present utility model;

[0017] Figure 3 It is a schematic structural diagram of the second protective cylinder of a nitrogen protection pipeline of an ethylene oxide sterilizer of the present utility model;

[0018] Figure 4 It is an installation schematic diagram of a nitrogen protection pipeline of an ethylene oxide sterilizer of the present utility model.

[0019] Legend description: 1. First protective cylinder; 2. Valve body; 3. Compressed air pipe; 4. Connecting pipe; 5. Sphere; 6. Motor; 7. One-way passage; 8. Pressurized bottle; 9. Air valve; 10. Pressure gauge; 11. Second protective cylinder; 12. Adapter; 13. Absorbing particles. Specific embodiments

[0020] To make the above objects, features and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below in conjunction with the drawings.

[0021] Secondly, the present utility model is described in detail in conjunction with the schematic diagrams. When detailing the embodiments of the present utility model, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general proportion, and the schematic diagrams are only examples and should not limit the scope of protection of the present utility model here. In addition, in actual production, three-dimensional spatial dimensions including length, width and depth should be included.

[0022] To make the purpose, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below in conjunction with the drawings.

[0023] Please refer to Figures 1-4, the utility model provides a nitrogen protection pipeline for an ethylene oxide sterilizer, which includes a first protective cylinder 1 installed outside the intake port of the ethylene oxide gas cylinder of the ethylene oxide sterilizer. A valve body 2 is fixedly connected to the center inside the first protective cylinder 1. One end of the valve body 2 is fixedly connected to a pressure pipe 3. The pressure pipe 3 penetrates through the first protective cylinder 1 and is connected to an external nitrogen cylinder, facilitating the connection of a connecting pipe 4 to the end of the valve body 2 away from the pressure pipe 3. The connecting pipe 4 is connected to the intake port of the ethylene oxide gas cylinder of the ethylene oxide sterilizer. By releasing gas from the nitrogen cylinder, the ethylene oxide in the ethylene oxide gas cylinder can be pressed into the sterilizer for release.

[0024] A motor 6 is fixedly connected to the outer wall of the first protective cylinder 1. The driving shaft of the motor 6 penetrates through the valve body 2 and is fixedly connected to a sphere 5. A one-way passage 7 is opened inside the sphere 5. The two ends of the one-way passage 7 are respectively connected to the pressure pipe 3 and the connecting pipe 4 in correspondence. By driving the sphere 5 to rotate through the motor 6, the opening and closing of the passage between the pressure pipe 3 and the connecting pipe 4 can be controlled.

[0025] A pressurized bottle 8 is arranged at the top of the first protective cylinder 1. Nitrogen is arranged inside the pressurized bottle 8 as a protective gas, facilitating the protection of the joint to prevent the leakage of ethylene oxide.

[0026] A second protective cylinder 11 is arranged at the bottom of the first protective cylinder 1. Absorbent particles 13 are filled inside the second protective cylinder 11. The absorbent particles 13 include activated carbon and molecular sieve. When ethylene oxide leaks, the leaked ethylene oxide can be absorbed to prevent further leakage and environmental pollution.

[0027] The bottom of the pressurized bottle 8 is connected to the inside of the first protective cylinder 1. A gas valve 9 is arranged at the bottle mouth of the pressurized bottle 8. A pressure gauge 10 is arranged at the top of the first protective cylinder 1. By filling the first protective cylinder 1 with a protective gas, once ethylene oxide leaks inside the first protective cylinder 1, the ethylene oxide can quickly contact the absorbent particles 13 inside the second protective cylinder 11 and be absorbed.

[0028] In this embodiment, a swivel joint 12 is fixedly connected to the bottom of the first protective cylinder 1. The swivel joint 12 is threadedly connected to the top of the second protective cylinder 11, facilitating the replacement of the second protective cylinder 11 and the absorbent particles 13 inside it.

[0029] During use, refer to the pressure gauge 10 and fill the first protective cylinder 1 with nitrogen at a sufficient pressure through the pressurized bottle 8, so that the connection part is not in contact with the external ambient air, delaying the aging speed. At the same time, the external high-pressure gas makes it more difficult for the connection part to leak gas. Then, connect the motor 6 to an external power supply. When the ethylene oxide sterilizer is working, the motor 6 drives the sphere 5 to rotate, making the one-way passage 7 connect the connecting pipe 4 and the pressure pipe 3. By pressing nitrogen into the ethylene oxide gas cylinder of the sterilizer, the ethylene oxide can be safely released.

[0030] When used for a long time, if ethylene oxide leaks at the first protective cylinder 1, since the first protective cylinder 1 is filled with nitrogen, under high pressure, the ethylene oxide can fully contact the absorption particles 13, facilitating the absorption of the leaked ethylene oxide. During this period, the pointer of the pressure gauge 10 fluctuates due to the pressure change, facilitating the prompt of the staff about gas leakage and timely handling.

[0031] A valve is provided outside the ethylene oxide gas cylinder. When leakage occurs, the valve can be closed, and then the connecting pipe 4 can be removed from outside the ethylene oxide gas cylinder for maintenance. At the same time, the second protective cylinder 11 can be disassembled and replaced.

[0032] Although the present utility model has been described with reference to the embodiments above, various improvements can be made to it and its components can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the features of the embodiments disclosed in the present utility model can be combined with each other in any way. The exhaustive description of these combinations is omitted in this specification only for the consideration of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A nitrogen protection pipeline for an ethylene oxide sterilizer, comprising a first protective tube (1) installed outside the gas inlet of an ethylene oxide gas cylinder of the ethylene oxide sterilizer, characterized in that: A valve body (2) is fixedly connected to the center of the first protective tube (1), one end of the valve body (2) is fixedly connected to a compressed air pipe (3), the outer wall of the first protective tube (1) is fixedly connected to a motor (6), the driving shaft of the motor (6) passes through the valve body (2) and is fixedly connected to a sphere (5), a straight passage (7) is provided inside the sphere (5), a pressurized bottle (8) is arranged on the top of the first protective tube (1), a second protective tube (11) is arranged on the bottom of the first protective tube (1), and the second protective tube (11) is filled with absorption particles (13).

2. The nitrogen protection pipeline of an ethylene oxide sterilizer according to claim 1, characterized in that: The compressed air pipe (3) passes through the first protective tube (1) and is connected to an external nitrogen cylinder. The end of the valve body (2) away from the compressed air pipe (3) is fixedly connected to a connecting pipe (4), and the connecting pipe (4) is connected to the air inlet of the ethylene oxide cylinder of the ethylene oxide sterilizer.

3. The nitrogen protection pipeline of an ethylene oxide sterilizer according to claim 1, characterized in that: The two ends of the straight passage (7) are respectively connected to the compressed air pipe (3) and the connecting pipe (4).

4. The nitrogen protection pipeline of an ethylene oxide sterilizer according to claim 1, characterized in that: The bottom of the pressurized bottle (8) is connected to the interior of the first protective cylinder (1), a gas valve (9) is provided at the mouth of the pressurized bottle (8), and a pressure gauge (10) is provided at the top of the first protective cylinder (1).

5. The nitrogen protection pipeline of an ethylene oxide sterilizer according to claim 1, characterized in that: The pressurized bottle (8) is provided with nitrogen gas inside.

6. The nitrogen protection pipeline of an ethylene oxide sterilizer according to claim 1, characterized in that: The bottom of the first protective tube (1) is fixedly connected with an adapter (12), and the adapter (12) is threadedly connected to the top of the second protective tube (11).

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