Ethylene oxide sterilization device

Abstract

The utility model discloses an ethylene oxide sterilization device which comprises a sterilizer body, an ethylene oxide gas cylinder is arranged on one side of the sterilizer body, a three-way pipe fitting is fixed to a bottle opening of the ethylene oxide gas cylinder in a sealed mode, and a temporary storage gas cylinder and a filter cartridge are fixedly communicated with the other two connectors of the three-way pipe fitting respectively. And a connecting pipe is fixedly communicated between the temporary storage gas bottle and the filter cartridge. According to the utility model, through the arrangement of the three-way pipe fitting, the temporary storage gas cylinder, the filter cartridge, the connecting pipe and the gas inlet pipe, when the sterilizer body stops using, part of ethylene oxide in the ethylene oxide gas cylinder can be conveyed into the temporary storage gas cylinder for storage; the temporary storage gas cylinder can provide ethylene oxide for the sterilizer body, and then the ethylene oxide gas cylinder is replaced, so that the supply of ethylene oxide to the sterilizer body is ensured, and the sterilization efficiency of the sterilizer is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilization devices, in particular to an ethylene oxide sterilization device. Background Art

[0002] Ethylene oxide sterilization device is an instrument used for industrial production sterilization and medical institution sterilization. The working principle of ethylene oxide sterilization device is to use ethylene oxide gas to act on the items in the sterilization box under certain temperature, pressure and humidity conditions, so as to denature microbial proteins and genetic materials, thereby causing the death of microorganisms and achieving the purpose of sterilization. Ethylene oxide sterilization device is widely used in medical equipment, medicine, textiles, rubber and plastics and other fields.

[0003] The prior art publication number is CN220801544U, which is a dosing device for an ethylene oxide sterilizer. The dosing device includes a sterilizing cabinet and an ethylene oxide gas cylinder. A fixed cylinder is installed on one side of the sterilizing cabinet. The inner cavity of the fixed cylinder is provided with a connecting pipe. The ethylene oxide gas cylinder is connected to the connecting pipe through an air inlet pipe. The inner cavity of the sterilizing cabinet is fixedly provided with a partition passed by the connecting pipe. One side of the fixed cylinder is provided with an input pipe located below the partition and connected to the inner cavity of the sterilizing cabinet. The inner cavity of the fixed cylinder is provided with a filter screen below the partition. The inner cavity of the fixed cylinder is provided with a cleaning mechanism for cleaning the filter screen.

[0004] The ethylene oxide sterilizer filters the ethylene oxide entering the sterilization cabinet through a filter screen to prevent metal impurities contained in the ethylene oxide from entering the interior of the sterilization cabinet.

[0005] However, in actual use, when the ethylene oxide in the ethylene oxide cylinder is insufficient, it is necessary to first disassemble the air inlet pipe and the ethylene oxide cylinder, and then replace it with a new ethylene oxide cylinder, and then install the air inlet pipe and the ethylene oxide cylinder. The whole replacement process takes a long time. During this period, the ethylene oxide sterilization device has no ethylene oxide supply, which will affect the sterilization efficiency of the sterilizer. For this reason, improvements are proposed. Utility Model Content

[0006] The utility model is an ethylene oxide sterilizing device proposed to solve the shortcomings in the prior art.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an ethylene oxide sterilization device, comprising a sterilizer body, an ethylene oxide gas cylinder is arranged on one side of the sterilizer body, a three-way pipe fitting is sealed and fixed to the bottle mouth of the ethylene oxide gas cylinder, the other two interfaces of the three-way pipe fitting are respectively fixedly penetrated with a temporary gas cylinder and a filter cartridge, and a connecting pipe is fixedly penetrated between the temporary gas cylinder and the filter cartridge;

[0008] An air inlet pipe is fixedly connected between the top of the filter cartridge and the air inlet of the sterilizer body;

[0009] A conical filter screen is fixedly installed on the inner top wall of the filter cartridge, and a cleaning assembly is installed between the conical filter screen and the filter cartridge;

[0010] A collecting assembly is installed at the bottom of the filter cartridge.

[0011] Furthermore, the three-way pipe fitting includes a fixed pipe, and the fixed pipe and the ethylene oxide gas cylinder are fixedly connected, the other end of the fixed pipe is fixedly connected with a three-way solenoid valve, the other two interfaces of the three-way solenoid valve are respectively fixedly connected with a main delivery pipe and a secondary delivery pipe, and the main delivery pipe and the filter cartridge are fixedly connected, and the secondary delivery pipe and the temporary storage gas cylinder are fixedly connected, and the main delivery pipe is installed with a first solenoid valve, which can control the opening and closing of the main delivery pipe.

[0012] Furthermore, the cleaning component includes an air pump, and the air pump is fixedly installed on the top of the sterilizer body, an air supply pipe is fixedly passed through the output end of the air pump, an air distribution pipe is fixedly passed through the other end of the air supply pipe, and the air distribution pipe passes through the top of the filter cartridge and extends to the interior, and the air distribution pipe is fixedly connected to the filter cartridge, and a second solenoid valve is installed on the air supply pipe, and the second solenoid valve can control the opening and closing of the air supply pipe.

[0013] Furthermore, the collecting assembly includes a collecting cylinder, and the collecting cylinder is sealingly threadedly sleeved on the outer surface of the filter cylinder. An installation groove is opened on the inner wall of one side of the collecting cylinder, and a blocking filter is fixedly connected to the opening of the installation groove. The blocking filter can prevent impurities from entering the installation groove during exhaust.

[0014] Furthermore, an exhaust pipe is fixedly connected to one side of the outer surface of the collecting tube, and the exhaust pipe is communicated with the mounting groove. The exhaust pipe can be connected to an external exhaust gas treatment device, which is beneficial to the treatment of the discharged exhaust gas.

[0015] Furthermore, the exhaust pipe, the connecting pipe and the intake pipe are all installed with a third solenoid valve, and the third solenoid valve can control the opening and closing of the exhaust pipe, the connecting pipe and the intake pipe.

[0016] Beneficial effects of the utility model:

[0017] When the utility model is in use, the ethylene oxide sterilization device can transport part of the ethylene oxide in the ethylene oxide cylinder to the temporary storage cylinder for storage through the three-way pipe fitting, temporary storage cylinder, filter cartridge, connecting pipe and air inlet pipe when the sterilizer body stops being used. When the ethylene oxide in the ethylene oxide cylinder is insufficient during use, the temporary storage cylinder can provide ethylene oxide for the sterilizer body, and then the ethylene oxide cylinder can be replaced to ensure that the sterilizer body is supplied with ethylene oxide, thereby avoiding affecting the sterilization efficiency of the sterilizer.

[0018] When the utility model is in use, the ethylene oxide sterilization device can automatically clean the conical filter screen in daily use through the provided cleaning component and the collecting component, and when it is necessary to dump the impurities in the collecting component, the ethylene oxide gas in the filter cartridge and the collecting component can be quickly diluted and discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the drawings required for use in the description of the specific implementation methods will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 : A three-dimensional diagram of the utility model;

[0021] Figure 2 : The front view of the utility model;

[0022] Figure 3 : A cross-sectional view of the filter cartridge and collection assembly of the utility model.

[0023] The reference numerals are as follows:

[0024] 1. Sterilizer body; 2. Air pump; 3. Air supply pipe; 4. Collecting tube; 5. Inlet pipe; 6. Ethylene oxide cylinder; 7. Connecting pipe; 8. Temporary storage cylinder; 9. Three-way solenoid valve; 10. Fixed pipe; 11. Filter cartridge; 12. Auxiliary delivery pipe; 13. Main delivery pipe; 14. Air distribution pipe; 15. Conical filter; 16. Installation slot; 17. Exhaust pipe; 18. Blocking filter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] like Figures 1 to 3As shown, it relates to an ethylene oxide sterilization device, including a sterilizer body 1, an ethylene oxide gas cylinder 6 is arranged on one side of the sterilizer body 1, a three-way pipe fitting is sealed and fixed to the bottle mouth of the ethylene oxide gas cylinder 6, the other two interfaces of the three-way pipe fitting are respectively fixedly penetrated with a temporary gas cylinder 8 and a filter cartridge 11, a connecting pipe 7 is fixedly penetrated between the temporary gas cylinder 8 and the filter cartridge 11, the three-way pipe fitting includes a fixed pipe 10, and the fixed pipe 10 is fixedly penetrated with the ethylene oxide gas cylinder 6, the other end of the fixed pipe 10 is fixedly penetrated with a three-way solenoid valve 9, and the other two interfaces of the three-way solenoid valve 9 are fixedly penetrated. A main delivery pipe 13 and a secondary delivery pipe 12 are fixedly connected, and the main delivery pipe 13 and the filter cartridge 11 are fixedly connected, and the secondary delivery pipe 12 and the temporary storage gas cylinder 8 are fixedly connected. The main delivery pipe 13 is installed with a first solenoid valve. When the ethylene oxide gas cylinder 6 needs to be connected with the temporary storage gas cylinder 8, the three-way solenoid valve 9 controls the fixed pipe 10 to be connected with the secondary delivery pipe 12. When the ethylene oxide gas cylinder 6 needs to be connected with the secondary delivery pipe 12, the three-way solenoid valve 9 controls the fixed pipe 10 to be connected with the main delivery pipe 13, and then the main delivery pipe 13 is opened by the first solenoid valve.

[0027] An air inlet pipe 5 is fixedly connected between the top of the filter cartridge 11 and the air inlet of the sterilizer body 1 to facilitate the entry of ethylene oxide into the sterilizer body 1 .

[0028] A conical filter screen 15 is fixedly installed on the inner top wall of the filter cartridge 11, and a cleaning assembly is installed between the conical filter screen 15 and the filter cartridge 11. The cleaning assembly includes an air pump 2, and the air pump 2 is fixedly installed on the top of the sterilizer body 1, and an air supply pipe 3 is fixedly penetrated at the output end of the air pump 2, and an air distribution pipe 14 is fixedly penetrated at the other end of the air supply pipe 3, and the air distribution pipe 14 extends through the top of the filter cartridge 11 to the inside, and the air distribution pipe 14 is fixedly connected to the filter cartridge 11, and a second solenoid valve is installed on the air supply pipe 3, and the second solenoid valve opens the air supply pipe 3, and the air pump 2 conveys air to the air distribution pipe 14 through the air supply pipe 3, and then sprays it out through the air distribution pipe 14 to clean the conical filter screen 15.

[0029] A collecting assembly is installed at the bottom of the filter cartridge 11, and the collecting assembly includes a collecting cartridge 4, and the collecting cartridge 4 is sealingly threadedly sleeved on the outer surface of the filter cartridge 11, and an installation groove 16 is opened on the inner wall of one side of the collecting cartridge 4, and a blocking filter 18 is fixedly connected to the opening of the installation groove 16, and an exhaust pipe 17 is fixedly connected to one side of the outer surface of the collecting cartridge 4, and the exhaust pipe 17 is communicated with the installation groove 16, and the exhaust pipe 17 can be connected to an external exhaust gas treatment device to prevent the discharged exhaust gas from polluting the environment.

[0030] The exhaust pipe 17 , the connecting pipe 7 and the intake pipe 5 are all installed with a third solenoid valve to control the opening and closing of the exhaust pipe 17 , the connecting pipe 7 and the intake pipe 5 .

[0031] Working principle: the three-way solenoid valve 9 controls the fixed pipe 10 to be connected with the auxiliary delivery pipe 12, and the gas in the ethylene oxide cylinder 6 enters the temporary storage cylinder 8 until the pressure of the two is consistent, and then the three-way solenoid valve 9 controls the fixed pipe 10 to be connected with the main delivery pipe 13. When the sterilizer body 1 is in use, the first solenoid valve controls the main delivery pipe 13 to open, and ethylene oxide enters the filter cartridge 11, and then enters the air inlet pipe 5 after being filtered by the conical filter 15, and then is delivered to the sterilizer body 1. When the gas in the ethylene oxide cylinder 6 is insufficient, the first solenoid valve controls the main delivery pipe 13 to be closed, and the third solenoid valve controls the connecting pipe 7 to be opened, and the ethylene oxide in the temporary storage cylinder 8 enters the filter cartridge 11, and enters the sterilizer body 1 through various components, and the ethylene oxide cylinder 6 is replaced at the same time;

[0032] When the conical filter 15 needs to be cleaned, the first solenoid valve controls the main delivery pipe 13 to close, the third solenoid valve controls the exhaust pipe 17 to open, the third solenoid valve connected to the intake pipe 5 controls it to close, and then the second solenoid valve controls the air supply pipe 3 to open, and then the air pump 2 delivers air to the air distribution pipe 14 through the air supply pipe 3, and then sprays it out through the air distribution pipe 14 to clean the conical filter 15.

[0033] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An ethylene oxide sterilization device, comprising a sterilizer body (1), characterized in that: An ethylene oxide gas cylinder (6) is provided on one side of the sterilizer body (1); a three-way pipe fitting is sealed and fixed to the bottle mouth of the ethylene oxide gas cylinder (6); a temporary gas cylinder (8) and a filter cartridge (11) are fixedly connected to the other two interfaces of the three-way pipe fitting respectively; a connecting pipe (7) is fixedly connected between the temporary gas cylinder (8) and the filter cartridge (11); An air inlet pipe (5) is fixedly connected between the top of the filter cartridge (11) and the air inlet of the sterilizer body (1); A conical filter screen (15) is fixedly mounted on the inner top wall of the filter cartridge (11), and a cleaning assembly is installed between the conical filter screen (15) and the filter cartridge (11); A collecting assembly is installed at the bottom of the filter cartridge (11).

2. The ethylene oxide sterilization device according to claim 1, characterized in that: The three-way pipe fitting comprises a fixed pipe (10), and the fixed pipe (10) is fixedly connected to the ethylene oxide gas cylinder (6), the other end of the fixed pipe (10) is fixedly connected to a three-way solenoid valve (9), the other two interfaces of the three-way solenoid valve (9) are respectively fixedly connected to a main delivery pipe (13) and a secondary delivery pipe (12), the main delivery pipe (13) is fixedly connected to the filter cartridge (11), and the secondary delivery pipe (12) is fixedly connected to the temporary storage gas cylinder (8), and the main delivery pipe (13) is installed with a first solenoid valve.

3. The ethylene oxide sterilization device according to claim 1, characterized in that: The cleaning assembly comprises an air pump (2), and the air pump (2) is fixedly mounted on the top of the sterilizer body (1), an air supply pipe (3) is fixedly passed through the output end of the air pump (2), an air distribution pipe (14) is fixedly passed through the other end of the air supply pipe (3), and the air distribution pipe (14) passes through the top of the filter cartridge (11) and extends to the inside, and the air distribution pipe (14) is fixedly connected to the filter cartridge (11), and a second solenoid valve is installed on the air supply pipe (3).

4. The ethylene oxide sterilization device according to claim 1, characterized in that: The collecting assembly comprises a collecting cylinder (4), and the collecting cylinder (4) is sealingly threadedly sleeved on the outer surface of the filter cylinder (11), a mounting groove (16) is provided on an inner wall of one side of the collecting cylinder (4), and a blocking filter (18) is fixedly connected to the opening of the mounting groove (16).

5. The ethylene oxide sterilization device according to claim 4, characterized in that: An exhaust pipe (17) is fixedly connected to one side of the outer surface of the collecting cylinder (4), and the exhaust pipe (17) is in communication with the mounting groove (16).

6. The ethylene oxide sterilization device according to claim 5, characterized in that: The exhaust pipe (17), the connecting pipe (7) and the air intake pipe (5) are all equipped with a third solenoid valve.

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