Ethylene oxide resolver

Abstract

The invention discloses an ethylene oxide resolver, and relates to the technical field of medical instruments, the ethylene oxide resolver comprises a box body, the top of the box body is fixedly connected with a controller, one side wall of the box body is fixedly connected with a touch screen, a power-off button and a power-on button, and the bottom of the box body is fixedly connected with a mounting rack; the upper end of the mounting frame is fixedly connected with a high-temperature catalytic resolver, the top of the high-temperature catalytic resolver is fixedly connected with a heater, and a gas conveying mechanism used for conveying ethylene oxide to the high-temperature catalytic resolver is arranged in the box body; according to the present invention, the tail gas discharged during the operation of the ethylene oxide sterilizer is subjected to the high-temperature catalytic decomposition reaction through the catalyst, such that the harmless treatment is compulsively achieved, and the safe emission standard is ensured; worries of users are thoroughly eliminated, and the decomposition efficiency is up to 99.99% or above.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, specifically to an ethylene oxide desorber. Background Technology

[0002] Ethylene oxide is a highly efficient gaseous sterilizing agent, widely used in sterilization processes in industries such as medical devices, food packaging, and pharmaceuticals. However, ethylene oxide itself is flammable, explosive, toxic, and carcinogenic. Direct emission of the exhaust gases remaining in equipment or the environment after sterilization can cause serious harm to the health of operators and the ecological environment. Therefore, the safe and efficient treatment of exhaust gases generated during ethylene oxide sterilization has become an urgent technical problem to be solved in the medical device and related industries.

[0003] To address the aforementioned problems, an improved ethylene oxide parsing apparatus is now designed. Summary of the Invention

[0004] The purpose of this invention is to provide an ethylene oxide parsing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An ethylene oxide desorber includes a housing. A controller is fixedly connected to the top of the housing. A touch screen, a power off button, and a power on button are fixedly connected to one side wall of the housing. A power cord for supplying power to the internal electrical equipment is provided at the lower end of the side wall opposite to the side wall where the touch screen is located. A mounting bracket is fixedly connected to the bottom of the housing. A high-temperature catalytic desorber is fixedly connected to the upper end of the mounting bracket. A heater for heating the internal chamber of the high-temperature catalytic desorber is fixedly connected to the top of the high-temperature catalytic desorber. A gas supply mechanism for supplying ethylene oxide to the high-temperature catalytic desorber is provided inside the housing. An air circulation mechanism is provided inside the housing to maintain negative pressure inside the housing and to discharge the desorbed waste gas.

[0006] As a further aspect of the present invention: the gas supply mechanism includes an ethylene oxide delivery pipe, one end of which is fixedly connected to the gas input end of the high-temperature catalytic desorber; the end of the ethylene oxide delivery pipe away from the high-temperature catalytic desorber is fixedly connected to an ethylene oxide direct discharge pipe; the ethylene oxide direct discharge pipe is horizontally fixedly connected to the bottom of the chamber; the end of the ethylene oxide direct discharge pipe away from the ethylene oxide delivery pipe passes through the side wall of the chamber where the power cord is located and is detachably connected to the roof ventilation system; a first solenoid valve is installed on the ethylene oxide delivery pipe; a second solenoid valve is installed on the ethylene oxide delivery pipe between the first solenoid valve and the ethylene oxide direct discharge pipe; an ethylene oxide inlet pipe is fixedly connected to the ethylene oxide delivery pipe between the first solenoid valve and the second solenoid valve; the ethylene oxide inlet pipe is horizontally fixedly connected to the bottom of the chamber; the end of the ethylene oxide inlet pipe away from the ethylene oxide delivery pipe passes through the side wall of the chamber where the power cord is located and is connected to the exhaust port of the sterilizer.

[0007] As a further embodiment of the present invention: the air circulation mechanism includes an exhaust fan, an air filter element for filtering air is fixedly connected to the side wall of the housing, the exhaust fan is fixedly connected inside the mounting bracket, the output end of the exhaust fan is fixedly connected to an exhaust pipe, and the end of the exhaust pipe away from the exhaust fan passes through the side wall of the housing where the power cord is located and is located on the outside.

[0008] As a further aspect of the present invention: a pressure-balancing hole is provided on the side wall of the enclosure where the power cord is located.

[0009] As a further aspect of the present invention, casters are fixedly connected to the four corners of the lower end of the box to facilitate the movement of the box.

[0010] As a further aspect of the present invention: an operating status indicator light is fixedly connected to the upper end of the side wall of the housing where the touch screen is located.

[0011] As a further embodiment of the present invention: a Type-C runtime data export interface and a printer are fixedly connected to the side wall of the housing where the touch screen is located, and a communication port is fixedly connected to the side wall of the housing where the power cord is located.

[0012] As a further aspect of the present invention, a preheating box is provided at the input end of the ethylene oxide direct discharge pipe to eliminate the risk of contact with open flame.

[0013] As a further aspect of the present invention: the output end of the exhaust pipe is equipped with a high-precision sensor, and the touch screen displays the emission concentration and temperature changes in real time.

[0014] Compared with the prior art, the beneficial effects of the present invention are: This invention uses a catalyst to perform a high-temperature catalytic decomposition reaction on the exhaust gas emitted from an ethylene oxide sterilizer, forcibly achieving harmless treatment, ensuring compliance with safe emission standards, and completely eliminating users' concerns.

[0015] This invention employs a unique heating and detection technology to achieve efficient analysis through high-temperature catalytic decomposition. The equipment can perform high-temperature catalytic decomposition treatment on the exhaust gas discharged from the ethylene oxide sterilizer online, converting it into non-toxic carbon dioxide and water, with a decomposition efficiency of over 99.99%.

[0016] This invention can be adapted to the analytical requirements of various ethylene oxide sterilizers, and the treatment effect fully complies with the emission requirements of relevant national standards and regulations. The equipment adopts an automatic control negative pressure operation mode throughout the process, and has the advantages of complete functions, compact structure, safe and convenient operation, which can effectively avoid harm to the environment and personnel. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0019] Figure 3 This is a schematic diagram of the rear view structure of the present invention.

[0020] The components include: 1. Operating status indicator light; 2. Type-C operating data export interface; 3. Housing; 4. Casters; 5. Air filter; 6. Printer; 7. Touch screen; 8. Power off button; 9. Power on button; 10. Heater; 11. Controller; 12. High-temperature catalytic converter; 13. Exhaust fan; 14. First solenoid valve; 15. Second solenoid valve; 16. Ethylene oxide direct discharge pipe; 17. Ethylene oxide inlet pipe; 18. Exhaust gas discharge pipe; 19. Balance air pressure hole; 20. Communication port; 21. Power cord; 22. Ethylene oxide delivery pipe; 23. Mounting bracket. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figures 1-3In this embodiment of the invention, an ethylene oxide desorber includes a housing 3. A controller 11 is fixedly connected to the top of the housing 3. A touch screen 7, a power off button 8, and a power on button 9 are fixedly connected to one side wall of the housing 3. A power cord 21 for supplying power to the electrical equipment inside the housing 3 is provided at the lower end of the side wall opposite to the side wall where the touch screen 7 is located. A mounting bracket 23 is fixedly connected to the bottom of the housing 3. A high-temperature catalytic desorber 12 is fixedly connected to the upper end of the mounting bracket 23. A heater 10 for heating the internal chamber of the high-temperature catalytic desorber 12 is fixedly connected to the top of the high-temperature catalytic desorber 12. A gas supply mechanism for supplying ethylene oxide to the high-temperature catalytic desorber 12 is provided inside the housing 3. An air circulation mechanism for maintaining a negative pressure inside the housing 3 and discharging the exhaust gas after desorbing is provided inside the housing 3.

[0023] The gas delivery mechanism includes an ethylene oxide delivery pipe 22. One end of the ethylene oxide delivery pipe 22 is fixedly connected to the gas input end of the high-temperature catalytic desorber 12. The end of the ethylene oxide delivery pipe 22 away from the high-temperature catalytic desorber 12 is fixedly connected to an ethylene oxide direct discharge pipe 16. The ethylene oxide direct discharge pipe 16 is horizontally fixedly connected to the bottom of the housing 3. The end of the ethylene oxide direct discharge pipe 16 away from the ethylene oxide delivery pipe 22 passes through the side wall of the housing 3 where the power cord 21 is located and is detachably connected to the roof ventilation system. A first solenoid valve 14 is installed on the delivery pipe 22. A second solenoid valve 15 is installed on the ethylene oxide delivery pipe 22 between the first solenoid valve 14 and the ethylene oxide direct discharge pipe 16. An ethylene oxide inlet pipe 17 is fixedly connected to the ethylene oxide delivery pipe 22 between the first solenoid valve 14 and the second solenoid valve 15. The ethylene oxide inlet pipe 17 is horizontally fixedly connected to the bottom of the chamber 3. The end of the ethylene oxide inlet pipe 17 away from the ethylene oxide delivery pipe 22 passes through the side wall of the chamber 3 where the power cord 21 is located and is connected to the exhaust port of the sterilizer.

[0024] During the preheating stage, before the decomposition conditions are met, the first solenoid valve 14 is closed and the second solenoid valve 15 is opened. If an emergency occurs, ethylene oxide will be discharged from the sterilizer and enter the ethylene oxide inlet pipe 17. The ethylene oxide inlet pipe 17 will then transport the ethylene oxide through the second solenoid valve 15 to the ethylene oxide direct discharge pipe 16. The ethylene oxide direct discharge pipe 16 will then transport the ethylene oxide to the roof ventilation system for dilution and discharge.

[0025] During the decomposition phase, the first solenoid valve 14 is opened and the second solenoid valve 15 is closed, resulting in the discharge of ethylene oxide from the sterilizer. The ethylene oxide then enters the ethylene oxide inlet pipe 17, which transports the ethylene oxide through the first solenoid valve 14 and the ethylene oxide delivery pipe 22 to the high-temperature catalytic decomposition unit 12 for high-temperature catalytic decomposition. Ultimately, the ethylene oxide is decomposed into non-toxic carbon dioxide and water, which are then discharged into the interior of the chamber 3.

[0026] The air circulation mechanism includes an exhaust fan 13. An air filter element 5 for filtering air is fixedly connected to the side wall of the housing 3. The exhaust fan 13 is fixedly connected inside the mounting bracket 23. An exhaust gas discharge pipe 18 is fixedly connected to the output end of the exhaust fan 13. The end of the exhaust gas discharge pipe 18 away from the exhaust fan 13 passes through the side wall of the housing 3 where the power cord 21 is located and is located on the outside. A pressure balancing hole 19 is opened on the side wall of the housing 3 where the power cord 21 is located.

[0027] When in use, start the exhaust fan 13. The exhaust fan 13 draws out the air inside the housing 3 and discharges it through the exhaust pipe 18, thereby creating a negative pressure inside the housing 3. Under the action of pressure, the outside air enters the housing 3 through the air filter element 5 and filters the air.

[0028] The four corners of the lower end of the housing 3 are fixedly connected to universal wheels 4 to facilitate the movement of the housing 3. The upper side wall of the housing 3 where the touch screen 7 is located is fixedly connected to the running status indicator light 1. The side wall of the housing 3 where the touch screen 7 is located is fixedly connected to the Type-C running data export interface 2 and the printer 6. The side wall of the housing 3 where the power cord 21 is located is fixedly connected to the communication port 20.

[0029] The working principle of an ethylene oxide desorber: Standby phase: The device is in a low-power preparation state, the heater 10 is off, the controller 11 and the safety monitoring system are running, the first solenoid valve 14 is closed, and the second solenoid valve 15 is open.

[0030] Preheating stage: The heater 10 is started to preheat the chamber inside the high-temperature catalytic desorber 12. At the same time, the exhaust fan 13 is started to draw out the air inside the housing 3 and discharge it through the exhaust pipe 18, thereby creating a negative pressure inside the housing 3. Under the action of pressure, the outside air enters the housing 3 through the air filter element 5 and is filtered by the air filter element 5. This step can effectively prevent thermal shock and lay the foundation for subsequent efficient desorption.

[0031] When the decomposition conditions are not met, the first solenoid valve 14 is closed and the second solenoid valve 15 is opened. If an emergency occurs, ethylene oxide will be discharged from the sterilizer and enter the ethylene oxide inlet pipe 17. The ethylene oxide inlet pipe 17 will then transport the ethylene oxide through the second solenoid valve 15 to the ethylene oxide direct discharge pipe 16. The ethylene oxide direct discharge pipe 16 will then transport the ethylene oxide to the roof ventilation system for dilution and discharge.

[0032] The temperature maintenance system precisely regulates the temperature of the internal chamber of the high-temperature catalytic desorber 12, stabilizing it at a preset target value. Then, it automatically enters the desorption ready state, waiting for the injection of residual epoxy gas exhaust.

[0033] Analysis Phase: Keep the exhaust fan 13 running continuously to ensure high-speed ventilation and continuous dilution of ethylene oxide concentration. Then, control the first solenoid valve 14 to open and the second solenoid valve 15 to close. Ethylene oxide is discharged from the sterilizer and enters the ethylene oxide inlet pipe 17. The ethylene oxide inlet pipe 17 transports the ethylene oxide through the first solenoid valve 14 and the ethylene oxide delivery pipe 22 to the high-temperature catalytic decomposer 12 for high-temperature catalytic decomposition. Finally, it is decomposed into non-toxic carbon dioxide and water, and then discharged into the interior of the chamber 3. The exhaust fan 13 extracts the air from the interior of the chamber 3 and discharges it through the exhaust pipe 18.

[0034] The equipment maintains a negative pressure state throughout the decomposition process to prevent ethylene oxide from leaking out during the decomposition process to the greatest extent. At the same time, a preheating box is set at the input end of the ethylene oxide direct discharge pipe 16 to eliminate the risk of contact with open flame. The output end of the exhaust pipe 18 is equipped with a high-precision sensor, and the touch screen 7 displays the emission concentration and temperature changes in real time.

[0035] Ventilation phase: When the preset resolution time ends, the heater 10 is turned off, the first solenoid valve 14 is turned off, the second solenoid valve 15 is turned on, the exhaust fan 13 continues to run to balance the temperature, and the machine is automatically turned off after ventilation is completed.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. An oxirane analyzer, comprising a box (3), a controller (11) is fixedly connected to the top of the box (3), a touch screen (7), a shutdown button (8) and a start button (9) are fixedly connected to one of the side walls of the box (3), and a power line (21) for supplying power to the electrical equipment inside the box (3) is arranged at the lower end of the side wall of the box (3) opposite to the side wall where the touch screen (7) is arranged, characterized in that, The bottom of the box (3) is fixedly connected with a mounting rack (23), the upper end of the mounting rack (23) is fixedly connected with a high-temperature catalytic analyzer (12), the top of the high-temperature catalytic analyzer (12) is fixedly connected with a heater (10) for heating the internal cavity of the high-temperature catalytic analyzer (12), the inside of the box (3) is provided with a gas conveying mechanism for conveying ethylene oxide to the high-temperature catalytic analyzer (12), and the inside of the box (3) is provided with an air circulation mechanism for keeping the inside of the box (3) under negative pressure and discharging the exhaust gas after the analysis treatment.

2. An ethylene oxide resolver according to claim 1, wherein, The gas conveying mechanism comprises an ethylene oxide conveying pipe (22), one end of the ethylene oxide conveying pipe (22) is fixedly connected with the gas input end of the high-temperature catalytic analyzer (12), the end of the ethylene oxide conveying pipe (22) away from the high-temperature catalytic analyzer (12) is fixedly connected with an ethylene oxide direct discharge pipe (16), the ethylene oxide direct discharge pipe (16) is fixedly connected horizontally at the bottom of the box (3), the end of the ethylene oxide direct discharge pipe (16) away from the ethylene oxide conveying pipe (22) is detachably communicated with the roof ventilation system through the side wall of the box (3) where the power line (21) is located, the first electromagnetic valve (14) is installed on the ethylene oxide conveying pipe (22) between the first electromagnetic valve (14) and the ethylene oxide direct discharge pipe (16), the second electromagnetic valve (15) is installed on the ethylene oxide conveying pipe (22) between the first electromagnetic valve (14) and the second electromagnetic valve (15), and the ethylene oxide inlet pipe (17) is fixedly connected to the ethylene oxide conveying pipe (22) between the first electromagnetic valve (14) and the second electromagnetic valve (15).

3. An ethylene oxide resolver according to claim 2, wherein, The air circulation mechanism comprises an exhaust fan (13), an air filter (5) for filtering air is fixedly connected to the side wall of the box (3), the exhaust fan (13) is fixedly connected in the mounting rack (23), the output end of the exhaust fan (13) is fixedly connected with an exhaust gas discharge pipe (18), and the end of the exhaust gas discharge pipe (18) away from the exhaust fan (13) is arranged outside through the side wall of the box (3) where the power line (21) is located.

4. An ethylene oxide resolver according to claim 3, wherein, The side wall of the box (3) where the power line (21) is located is provided with a balance air pressure hole (19).

5. An ethylene oxide resolver according to claim 1, wherein, Universal wheels (4) for facilitating the movement of the box (3) are fixedly connected to the four corners of the lower end of the box (3).

6. An ethylene oxide resolver according to claim 1, wherein, An operation state indicating lamp (1) is fixedly connected to the upper end of the side wall of the box (3) where the touch screen (7) is located.

7. An ethylene oxide resolver according to claim 1, wherein, A Type-C operation data export interface (2) and a printer (6) are fixedly connected to the side wall of the box (3) where the touch screen (7) is located, and a communication port (20) is fixedly connected to the side wall of the box (3) where the power line (21) is located.

8. An ethylene oxide resolver according to claim 2, wherein, The input end of the ethylene oxide direct discharge pipe (16) is provided with a preheating box.

9. An ethylene oxide resolver according to claim 3, wherein, A high-precision sensor is arranged at the output end of the exhaust gas discharge pipe (18).

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