Ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions

Abstract

The invention belongs to the technical field of medical auxiliary instruments, and particularly relates to an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions, comprising: a disinfection box for placing medical instruments and introducing ethylene oxide to disinfect the medical instruments; the rotating mechanism is arranged at the bottom of the inner side of the disinfection box; the air injection mechanism is arranged at the top of the disinfection box and used for spraying ethylene oxide gas to the medical instruments for disinfection; one end of the pumping mechanism is fixedly communicated with the disinfection box; the treatment box is fixedly communicated with the other end of the pumping mechanism, and the treatment box is used for treating the disinfected ethylene oxide; the detection assembly is arranged in the disinfection box, and the detection assembly is used for detecting the residual concentration of ethylene oxide after the medical equipment is disinfected; the outlet end of the storage mechanism fixedly communicates with the air injection mechanism, and the inlet end of the storage mechanism fixedly communicates with the treatment box. The method can be used for detecting the residual quantity of ethylene oxide while improving the disinfection effect of ethylene oxide.

Description

Technical Field

[0001] This invention belongs to the field of medical auxiliary device technology, and in particular relates to an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions. Background Technology

[0002] Ethylene oxide is commonly used for gas fumigation disinfection of food, textiles, and heat-labile pharmaceuticals and surgical instruments, such as leather, cotton fabrics, synthetic fiber fabrics, precision instruments, biological products, paper, books, documents, certain drugs, and rubber products.

[0003] Common disinfection methods include fixed container disinfection, disinfection bag disinfection, plastic canopy disinfection, and automated disinfection box disinfection. All of these methods must ensure the reliability and repeatability of sterilization and pose no significant hazard to operators. The disinfection effect is related to time, temperature, humidity, the type and quantity of contaminating microorganisms, and the partial pressure within the disinfection container. Higher temperatures enhance sterilization; for heat-unstable items, a temperature of approximately 55°C is commonly used. Dry microorganisms must be moistened to be killed. Commonly used disinfectant concentrations are 40%-60%, and disinfection times range from 6 to 24 hours.

[0004] Existing ethylene oxide sterilizers cannot achieve comprehensive sterilization of medical devices, nor do they have the function of detecting the residual amount of ethylene oxide after sterilization.

[0005] Therefore, it is necessary to design an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions to solve the above problems and achieve the goal of improving the disinfection effect of ethylene oxide while detecting the residual amount of ethylene oxide.

[0007] To achieve the above objectives, the present invention provides the following solution: an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions, comprising:

[0008] A sterilization box is used to place medical devices and sterilize them by introducing ethylene oxide.

[0009] A rotating mechanism is located at the bottom inside the sterilization box. The rotating mechanism is used to place medical devices and drive the medical devices to rotate.

[0010] A jetting mechanism is located on the top of the disinfection chamber, and the jetting mechanism is used to spray ethylene oxide gas onto the medical devices for disinfection.

[0011] The pumping mechanism is fixedly connected at one end to the disinfection box;

[0012] The processing tank is fixedly connected to the other end of the pumping mechanism, and the processing tank is used to process the sterilized ethylene oxide;

[0013] A detection component is installed inside the disinfection chamber, and the detection component is used to detect the residual concentration of ethylene oxide after medical device disinfection.

[0014] The storage mechanism has its outlet end fixedly connected to the jetting mechanism, and its inlet end fixedly connected to the processing box.

[0015] Based on the present invention, an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions is provided. The jetting mechanism includes an air inlet pipe. One end of the air inlet pipe is fixedly connected to the outlet end of the storage mechanism. The other end of the air inlet pipe is located inside the upper part of the sterilization chamber and is fixedly connected to a plurality of gas distribution pipes. The plurality of gas distribution pipes are arranged at equal intervals along the circumference of the air inlet pipe. The bottom end of the gas distribution pipe is fixedly connected to a plurality of nozzles. The plurality of nozzles are arranged at equal intervals along the length of the gas distribution pipe.

[0016] Based on the present invention, an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions is provided, wherein a plurality of guide vanes are fixedly connected to the inner wall of the nozzle, and the plurality of guide vanes are arranged at equal intervals along the circumference of the inner wall of the nozzle, and the guide vanes are inclined.

[0017] Based on the present invention, an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions is provided. The rotating mechanism includes a motor, which is fixedly connected to the bottom wall of the sterilization chamber. The output shaft of the motor is coaxially fixedly connected to the bottom end of a vertically arranged rotating shaft. Several sleeves are fixedly connected to the outer wall of the rotating shaft. Limiting rings are fixedly connected to both ends of the outer wall of the sleeves. A tray is threadedly connected to the outer wall of the sleeve. The tray is located between two of the limiting rings. Several arrayed through holes are opened on the tray. A retaining ring is fixedly connected to the top edge of the outer edge of the tray.

[0018] Based on the ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions of the present invention, a partition is fixedly connected to the bottom of the inner side wall of the sterilization chamber, the motor is located below the partition, and the tray is located above the partition.

[0019] Based on the present invention, an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions is provided. The pumping mechanism includes a first connecting pipe, one end of which is fixedly connected to the disinfection box, the other end of which is fixedly connected to the inlet end of an air pump, and the outlet end of the air pump is fixedly connected to one end of a second connecting pipe, the other end of which is fixedly connected to the processing mechanism inside the processing box.

[0020] Based on the present invention, an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions includes a processing mechanism comprising an absorption chamber, the side wall of which is fixedly connected to a second connecting pipe, the bottom wall of which is fixedly connected to one end of a first processing component, the other end of which is fixedly connected to a storage mechanism, the top wall of which is fixedly connected to one end of a second processing component, the other end of which is fixedly connected to the first processing component, and the top wall of which is also fixedly connected to one end of a third processing component, the other end of which is fixedly connected to the storage mechanism.

[0021] Based on the ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions of the present invention, the first processing component includes an EO-rich absorbent storage tank. The inlet end of the EO-rich absorbent storage tank is fixedly connected to the bottom end of the absorption tank. The outlet end of the EO-rich absorbent storage tank is fixedly connected to the inlet end of a heat exchanger. The outlet end of the heat exchanger is fixedly connected to the inlet end of a distillation column. The outlet end of the distillation column is fixedly connected to the inlet end of a condenser. The outlet end of the condenser is fixedly connected to the inlet end of a dryer. The outlet end of the dryer is fixedly connected to the storage mechanism.

[0022] Based on the ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions of the present invention, the second processing component includes a lean EO absorbent storage tank, the inlet end of which is fixedly connected to the top of the absorption tank, and the outlet end of which is fixedly connected to the inlet end of the heat exchanger.

[0023] Based on the ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions of the present invention, the third processing component includes an acid absorption tank, the inlet end of which is fixedly connected to the top of the absorption box and the outlet end of the condenser, and the outlet end of the acid absorption tank is fixedly connected to the storage mechanism.

[0024] Compared with the prior art, the present invention has the following advantages and technical effects:

[0025] This invention utilizes a rotating mechanism to place medical devices and continuously rotate them. During rotation, a jetting mechanism sprays ethylene oxide gas to comprehensively cover the medical devices, achieving a sterilization function. A detection component can detect the residual ethylene oxide in the medical devices and sterilization chamber after sterilization. A pumping mechanism provides the power for the flow of ethylene oxide within the sterilization and processing chambers. A storage mechanism stores the processed ethylene oxide, enabling its recycling. This invention achieves efficient recycling of ethylene oxide and detection of residual ethylene oxide after sterilization. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly described below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort:

[0027] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the rotating mechanism and the jetting mechanism of the present invention;

[0029] Figure 3 This is a schematic diagram of the bottom of the rotating mechanism of the present invention;

[0030] Figure 4 for Figure 3 A magnified view of part A in the image;

[0031] Figure 5 This is a schematic diagram of the processing mechanism of the present invention.

[0032] The components include: 1. Disinfection box; 2. Processing box; 3. T-junction; 4. Air storage tank; 5. Ethylene oxide storage tank; 6. First connecting pipe; 7. Second connecting pipe; 8. Partition plate; 9. Motor; 10. Shaft; 11. Sleeve; 12. Limiting ring; 13. Tray; 14. Through hole; 15. Retaining ring; 16. Air inlet pipe; 17. Gas distribution pipe; 18. Nozzle; 19. First connecting pipe; 20. Air pump; 21. Second connecting pipe; 22. Guide vane; 23. Absorption box; 24. Lean EO absorbent storage tank; 25. Rich EO absorbent storage tank; 26. Heat exchanger; 27. Distillation tower; 28. Condenser; 29. ​​Dryer; 30. Acid absorption tank. Detailed Implementation

[0033] 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.

[0034] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] Reference Figures 1 to 5 As shown, the present invention provides an ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions, comprising:

[0036] Disinfection box 1 is used to place medical devices and introduce ethylene oxide to disinfect the medical devices;

[0037] A rotating mechanism is located at the bottom inside the sterilization box 1. The rotating mechanism is used to place medical devices and drive the medical devices to rotate.

[0038] The jetting mechanism, located at the top of the disinfection chamber 1, is used to spray ethylene oxide gas onto medical devices for disinfection.

[0039] The pumping mechanism is fixedly connected at one end to the disinfection box 1;

[0040] Processing tank 2 is fixedly connected to the other end of the pumping mechanism. Processing tank 2 is used to process sterilized ethylene oxide.

[0041] The detection component is installed inside the disinfection chamber 1. The detection component is used to detect the residual concentration of ethylene oxide after medical device disinfection.

[0042] The storage mechanism has its outlet end fixedly connected to the jetting mechanism, and its inlet end fixedly connected to the processing box 2.

[0043] Furthermore, the jetting mechanism includes an air inlet pipe 16, one end of which is fixedly connected to the outlet end of the storage mechanism, and the other end of which is located above the inside of the disinfection box 1 and is fixedly connected to a plurality of air distribution pipes 17. The plurality of air distribution pipes 17 are arranged at equal intervals along the circumference of the air inlet pipe 16, and the bottom end of the air distribution pipes 17 is fixedly connected to a plurality of nozzles 18. The plurality of nozzles 18 are arranged at equal intervals along the length of the air distribution pipes 17.

[0044] Air or ethylene oxide gas in the storage unit enters the inlet pipe 16, then is diverted through the inlet pipe 16 into the distribution pipe 17, and finally sprayed out by the nozzle 18 to disinfect or remove residual ethylene oxide left on the medical device.

[0045] Furthermore, a number of guide vanes 22 are fixedly connected to the inner wall of the nozzle 18. The guide vanes 22 are arranged at equal intervals along the circumference of the inner wall of the nozzle 18, and the guide vanes 22 are inclined.

[0046] The guide vane 22 enables the air or ethylene oxide ejected from the nozzle 18 to act on the medical device in a spiral manner, thereby improving the disinfection effect of ethylene oxide or the effect of air removal of residual ethylene oxide.

[0047] Furthermore, the rotating mechanism includes a motor 9, which is fixedly connected to the bottom wall of the disinfection box 1. The output shaft of the motor 9 is coaxially fixedly connected to the bottom end of a vertically arranged rotating shaft 10. Several sleeves 11 are fixedly connected to the outer wall of the rotating shaft 10. Limiting rings 12 are fixedly connected to both ends of the outer wall of the sleeves 11. A tray 13 is threadedly connected to the outer wall of the sleeves 11. The tray 13 is located between two limiting rings 12. Several arrayed through holes 14 are opened on the tray 13. A retaining ring 15 is fixedly connected to the top edge of the outer edge of the tray 13.

[0048] The motor 9 and the rotating shaft 10 drive the tray 13 to rotate, which in turn drives the medical device placed on the tray 13 to rotate, improving the contact effect between the medical device and the ethylene oxide or air sprayed from the nozzle 18. The tray 13 and the sleeve 11 are designed with a threaded connection, which can realize the adjustment of the distance between two adjacent trays 13 to accommodate the placement of medical devices of different sizes.

[0049] Furthermore, a partition 8 is fixedly connected to the bottom of the inner wall of the disinfection box 1, the motor 9 is located below the partition 8, and the tray 13 is located above the partition 8.

[0050] Furthermore, the pumping mechanism includes a first connecting pipe 19, one end of which is fixedly connected to the disinfection box 1, the other end of which is fixedly connected to the inlet end of the air pump 20, the outlet end of the air pump 20 is fixedly connected to one end of a second connecting pipe 21, and the other end of the second connecting pipe 21 is fixedly connected to the processing mechanism inside the processing box 2.

[0051] The air pump 20 operates to provide power for air or ethylene oxide to enter the disinfection chamber 1 from the storage mechanism, enter the treatment chamber 2 from the disinfection chamber 1, and enter the storage mechanism from the treatment chamber 2.

[0052] Furthermore, the processing mechanism includes an absorption box 23, the side wall of which is fixedly connected to the second connecting pipe 21, the bottom wall of which is fixedly connected to one end of a first processing component, the other end of which is fixedly connected to a storage mechanism, the top wall of which is fixedly connected to one end of a second processing component, the other end of which is fixedly connected to the first processing component, and the top wall of which is also fixedly connected to one end of a third processing component, the other end of which is fixedly connected to the storage mechanism.

[0053] Furthermore, the first processing component includes an EO-rich absorbent storage 25, the inlet of which is fixedly connected to the bottom of the absorption tank 23, the outlet of which is fixedly connected to the inlet of a heat exchanger 26, the outlet of which is fixedly connected to the inlet of a distillation column 27, the outlet of which is fixedly connected to the inlet of a condenser 28, the outlet of which is fixedly connected to the inlet of a dryer 29, and the outlet of which is fixedly connected to the storage mechanism.

[0054] Furthermore, the second processing component includes a lean EO absorbent reservoir 24, the inlet of which is fixedly connected to the top of the absorption tank 23, and the outlet of which is fixedly connected to the inlet of the heat exchanger 26.

[0055] Furthermore, the third processing component includes an acid absorption tank 30, the inlet of which is fixedly connected to the top of the absorption box 23 and the outlet of the condenser 28, and the outlet of the acid absorption tank 30 is fixedly connected to the storage mechanism.

[0056] The ethylene oxide waste gas generated in the disinfection tank 1 is pumped to the bottom of the absorption tank 23 by the air pump 20. The lean EO absorbent liquid, composed of one or more of ethylene glycol, water, ethylene carbonate, and propylene carbonate, is pumped to the top of the absorption tank 23 and sprayed into the tower by the spray device. The lean EO absorbent liquid is sprayed from top to bottom. The ethylene oxide-containing waste gas is pressurized by the air pump 20 and transported from the bottom of the absorption tank 23 upward. The gas and liquid are fully contacted in the absorption tank 23. After the lean EO absorbent liquid absorbs the ethylene oxide in the waste gas, it becomes a rich EO absorbent liquid and flows into the bottom of the absorption tank 23. After the ethylene oxide is absorbed, the remaining gas in the waste gas is mainly composed of air and a very small amount of ethylene oxide, which is discharged through the pipeline to the acid absorption tank 30 for chemical treatment.

[0057] The EO-rich absorbent is preheated by heat exchanger 26 and then transported to the upper part of distillation column 27, where the temperature is set at 50℃-120℃. The ethylene oxide in the EO-rich absorbent is heated and vaporized to release the ethylene oxide gas. After releasing the ethylene oxide, the EO-rich absorbent becomes a EO-lean absorbent. After being cooled by heat exchanger 26, it is returned to the absorption box 23 for recycling.

[0058] In heat exchanger 26, the EO-rich absorbent can exchange heat energy with the EO-poor absorbent, thereby realizing the reuse of heat energy and reducing energy consumption.

[0059] The evaporated steam is cooled and dehydrated by condenser 28, which has a temperature of 15℃-50℃. The condenser liquefies the water vapor in the steam and returns it to distillation column 27. The gas, after preliminary dehydration by condensation, passes through dryer 29 to remove residual moisture, yielding ethylene oxide gas which is then stored in the storage facility.

[0060] When ethylene oxide needs to be injected into the disinfection box 1, the valve of the ethylene oxide storage tank 5 can be opened, and the ethylene oxide in the ethylene oxide storage tank 5 can be output to the disinfection box 1 by a pump, thereby realizing the reuse of ethylene oxide.

[0061] To improve the efficiency of absorption and distillation, an EO-rich absorbent storage tank 25 is provided between the absorption tank 23 and the heat exchanger 26, and an EO-lean absorbent storage tank 24 is provided between the heat exchanger 26 and the absorption tank 23. By adding the EO-rich absorbent storage tank 25 and the EO-lean absorbent storage tank 24, absorption and distillation can be started quickly and easily, thus improving the efficiency of absorption and distillation.

[0062] Furthermore, the storage mechanism includes a three-way valve 3. The first end of the three-way valve 3 is fixedly connected to the air inlet pipe 16. The second end of the three-way valve 3 is fixedly connected to the outlet of the air storage tank 4. The inlet of the air storage tank 4 is fixedly connected to one end of the first connecting pipe 6. The other end of the first connecting pipe 6 is fixedly connected to the outlet of the acid absorption tank 30. The third end of the three-way valve 3 is fixedly connected to the outlet of the ethylene oxide storage tank 5. The inlet of the ethylene oxide storage tank 5 is fixedly connected to one end of the second connecting pipe 7. The other end of the second connecting pipe 7 is fixedly connected to the outlet of the dryer 29.

[0063] The detection assembly includes an ethylene oxide detector housing. Both sides of the housing have locking blocks with C-shaped slots. A gooseneck tube is connected to the rear center of the housing, wrapped around the housing and engaged in the C-shaped slots. An air intake head is connected to the end of the gooseneck tube furthest from the housing. A disc is sealed and fixed to the end of the air intake head furthest from the gooseneck tube. The disc has evenly spaced first air inlets. A protective disc is provided on the side, and the center of the protective disc is movably connected to the disc via a rotating rod. Second air inlets are evenly spaced on the protective disc, and the number of second air inlets is the same as the number of first air inlets. The second air inlets correspond one-to-one with the first air inlets. A dust filter is installed inside the suction pipe head. A miniature air pump is installed inside the casing of the ethylene oxide detector. The output end of the miniature air pump is connected to the gooseneck tube. An ethylene oxide detection sensor is installed inside the gooseneck tube. A single chip is installed inside the casing of the ethylene oxide detector.

[0064] The output of the ethylene oxide detection sensor is electrically connected to the input of the microcontroller, and the output of the microcontroller is electrically connected to the input of the micro air pump. The microcontroller controls the micro air pump to work, so that the micro air pump draws in outside air through the gooseneck tube. When the air passes through the ethylene oxide detection sensor, the ethylene oxide detection sensor detects the concentration of ethylene oxide in the air and sends the relevant data to the microcontroller. The microcontroller processes the data and sends it to the display screen for display.

[0065] The inner wall of the gooseneck tube near the inhalation tube head has an internal thread, and the outer wall of the inhalation tube head near the gooseneck tube has an external thread. The threaded connection between the inhalation tube head and the gooseneck tube makes the installation of the inhalation tube head and the gooseneck tube simple and facilitates the removal of the inhalation tube head from the gooseneck tube.

[0066] The clamp is connected to the housing of the ethylene oxide detector by bolts. The clamp is made of rubber, which is elastic and can effectively clamp the gooseneck tube.

[0067] A protrusion is provided on the side of the protective disc away from the disc, which facilitates the rotation of the protective disc and thus adjusts the position of the second air inlet on the protective disc.

[0068] A sealing gasket is fixed on the side of the protective disc near the disc. The sealing gasket is circular, and the second air inlet passes through the sealing gasket. The sealing gasket increases the sealing performance between the protective disc and the disc, which can prevent external dust or moisture from entering the first air inlet through the gap between the protective disc and the disc.

[0069] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0070] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made to the technical solutions of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. An ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions, characterized in that, include: Disinfection box (1), used to place medical devices and introduce ethylene oxide to disinfect the medical devices; A rotating mechanism is provided at the bottom inside the disinfection box (1). The rotating mechanism is used to place medical devices and drive the medical devices to rotate. A jetting mechanism is located on the top of the disinfection box (1), and the jetting mechanism is used to spray ethylene oxide gas onto the medical device for disinfection; The pumping mechanism is fixedly connected at one end to the disinfection box (1); The processing tank (2) is fixedly connected to the other end of the pumping mechanism. The processing tank (2) is used to process the sterilized ethylene oxide. A detection component is installed inside the disinfection box (1), and the detection component is used to detect the residual concentration of ethylene oxide after the medical device is disinfected; The storage mechanism has its outlet end fixedly connected to the jet mechanism, and its inlet end fixedly connected to the processing box (2).

2. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 1, characterized in that, The jetting mechanism includes an air inlet pipe (16), one end of which is fixedly connected to the outlet end of the storage mechanism, and the other end of which is located above the inside of the disinfection box (1) and is fixedly connected to a plurality of air distribution pipes (17). The plurality of air distribution pipes (17) are arranged at equal intervals along the circumference of the air inlet pipe (16), and the bottom end of the air distribution pipe (17) is fixedly connected to a plurality of nozzles (18). The plurality of nozzles (18) are arranged at equal intervals along the length of the air distribution pipe (17).

3. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 2, characterized in that, A plurality of guide vanes (22) are fixedly connected to the inner wall of the nozzle (18). The plurality of guide vanes (22) are arranged at equal intervals along the circumference of the inner wall of the nozzle (18), and the guide vanes (22) are arranged at an angle.

4. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 1, characterized in that, The rotating mechanism includes a motor (9), which is fixedly connected to the bottom wall of the disinfection box (1). The output shaft of the motor (9) is coaxially fixedly connected to the bottom end of a vertically arranged rotating shaft (10). A plurality of sleeves (11) are fixedly connected to the outer wall of the rotating shaft (10). Limiting rings (12) are fixedly connected to both ends of the outer wall of the sleeves (11). A tray (13) is threadedly connected to the outer wall of the sleeves (11). The tray (13) is located between the two limiting rings (12). A plurality of arrayed through holes (14) are opened on the tray (13). A retaining ring (15) is fixedly connected to the top edge of the outer edge of the tray (13).

5. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 4, characterized in that, The disinfection box (1) has a partition (8) fixedly connected to the bottom of its inner wall. The motor (9) is located below the partition (8), and the tray (13) is located above the partition (8).

6. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 1, characterized in that, The pumping mechanism includes a first connecting pipe (19), one end of which is fixedly connected to the disinfection box (1), the other end of which is fixedly connected to the inlet end of an air pump (20), the outlet end of which is fixedly connected to one end of a second connecting pipe (21), and the other end of the second connecting pipe (21) is fixedly connected to the processing mechanism inside the processing box (2).

7. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 6, characterized in that, The processing mechanism includes an absorption box (23), the side wall of which is fixedly connected to the second connecting pipe (21), the bottom wall of which is fixedly connected to one end of a first processing component, the other end of which is fixedly connected to the storage mechanism, the top wall of which is fixedly connected to one end of a second processing component, the other end of which is fixedly connected to the first processing component, and the top wall of which is also fixedly connected to one end of a third processing component, the other end of which is fixedly connected to the storage mechanism.

8. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 7, characterized in that, The first processing component includes an EO-rich absorbent storage tank (25), the inlet of which is fixedly connected to the bottom of the absorption tank (23), the outlet of which is fixedly connected to the inlet of a heat exchanger (26), the outlet of which is fixedly connected to the inlet of a distillation column (27), the outlet of which is fixedly connected to the inlet of a condenser (28), the outlet of which is fixedly connected to the inlet of a dryer (29), and the outlet of which is fixedly connected to the storage mechanism.

9. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 8, characterized in that, The second processing component includes a lean EO absorbent reservoir (24), the inlet of which is fixedly connected to the top of the absorption tank (23), and the outlet of which is fixedly connected to the inlet of the heat exchanger (26).

10. The ethylene oxide sterilizer with efficient gas circulation and residue monitoring functions according to claim 8, characterized in that, The third processing component includes an acid absorption tank (30), the inlet of which is fixedly connected to the top of the absorption box (23) and the outlet of the condenser (28), and the outlet of which is fixedly connected to the storage mechanism.

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