Safe and efficient dosing device for ethylene oxide sterilizer

Abstract

The utility model provides a safe and efficient dosing device for an ethylene oxide sterilizer, which comprises an ethylene oxide steel cylinder and a frame, a panel is arranged on one side of the frame, a touch operation screen and an explosion-proof control box are arranged on the panel, a vaporizer is arranged in the frame, and a temperature sensor and a dosing proportional valve are connected onto the vaporizer; a gas outlet of the ethylene oxide steel cylinder is divided into two paths after passing through the dosing stop valve, one path is connected with an inlet of the vaporizer after passing through the filter, the dosing pneumatic ball valve and the dosing proportional valve, an outlet of the vaporizer is connected with a dosing port of the ethylene oxide sterilizer through the flowmeter, and the pipeline is used for dosing of the ethylene oxide sterilizer; and the other path is connected with a waste gas outlet after being connected with a hand ball valve and is used for treating waste gas in the dosing pipeline. According to the utility model, the nitrogen supply port is connected, so that the sterilization is safer, nitrogen can pass through the hand ball valve, residual ethylene oxide in the dosing pipe is discharged into waste gas treatment, the environment is protected, and combustible gas leakage is avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to epoxy acetylene sterilizer medicine adding device technical field, specifically relates to a kind of epoxy acetylene sterilizer safe and efficient medicine adding device. BACKGROUND

[0002] Epoxy ethane sterilization is one of the main sterilization methods of medical devices, with strong penetration, strong spectrum, complete sterilization and low temperature advantage, but the flammable and explosive and explosive limit wide and toxic characteristics of epoxy ethane gas lead to once leakage will cause loss of personnel and property.Ethylene oxide has a boiling point of 10 DEG C, and epoxy ethane is in liquid state at low temperature, which can cause liquid epoxy ethane to enter the cabinet, pollute the product and affect the sterilization effect.Epoxy ethane gasification is prone to polymerization, which makes epoxy ethane ineffective, and the generated polymer is easy to block the pipeline, causing equipment damage.

[0003] The existing medicine adding mode is to connect the steel cylinder directly with the sterilizer through pipeline;The problem is that a part of epoxy ethane is always left in the pipeline, which not only wastes the sterilizing agent, but also causes the leakage of epoxy ethane, causing poisoning or explosion.Moreover, the gasification device of epoxy ethane is usually placed near the sterilizer, and when the distance between the medicine adding room and the sterilizer is far, the gasification performance of epoxy ethane is reduced, the epoxy ethane is wasted, and the addition of more epoxy ethane causes the prolongation of product analysis time;When replacing the steel cylinder, the residual gas in the pipeline is directly discharged into the air, causing danger. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a safe and efficient medicine adding device for epoxy ethane sterilizer to solve the problems in the background art.

[0005] To solve the above technical problems, the utility model adopts the technical scheme of a safe and efficient medicine adding device for epoxy ethane sterilizer, which comprises an epoxy ethane cylinder and a frame, one side of the frame is provided with a panel, the panel is provided with a touch operation screen and an explosion-proof control box, a vaporizer is arranged in the frame, and a temperature sensor and a medicine adding proportional valve are connected to the vaporizer.

[0006] The epoxy ethane cylinder is placed on an electronic scale, the gas outlet of the epoxy ethane cylinder is divided into two ways after passing through a medicine adding stop valve, one way is connected with the inlet of the vaporizer after passing through a filter, a medicine adding pneumatic ball valve and a medicine adding proportional valve, the outlet of the vaporizer is connected with the medicine adding port of the epoxy ethane sterilizer through a flow meter, and this pipeline is used for medicine adding of the epoxy ethane sterilizer, and the other way is connected with a hand valve and then connected with a waste gas discharge port, which is used for waste gas treatment.

[0007] As a further illustration of the utility model, the ethylene oxide cylinder is also connected with a nitrogen supply port, and a nitrogen injection stop valve, a check valve and a pressure gauge are further connected with the nitrogen supply port, and the pressure gauge is divided into two ways, one of which is communicated with the ethylene oxide cylinder, and the other is communicated with a dosing proportional valve of a vaporizer.

[0008] As a further illustration of the utility model, a nitrogen pneumatic ball valve is further installed on the way communicated with the vaporizer on the nitrogen supply port.

[0009] As a further illustration of the utility model, the vaporizer is heated by hot water.

[0010] As a further illustration of the utility model, the touch operation screen can complete zeroing, peeling and calibration operations of the electronic scale, and can also display temperature information of an ethylene oxide sterilizer dosing port, an ethylene oxide sterilizer internal temperature, pressure and a vaporizer temperature.

[0011] As a further illustration of the utility model, the panel is made of stainless steel wire drawing plate.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model injects nitrogen into the sterilizer through the nitrogen supply port, increases the content of inert gas nitrogen, reduces the combustible ethylene oxide concentration in the ethylene oxide sterilizer to within the explosion limit, makes the sterilization safer, and at the same time of injecting nitrogen, the nitrogen blows the ethylene oxide in the dosing port into the sterilization cavity, reduces the use of ethylene oxide, and reduces the probability of leakage point.

[0014] 2. The utility model can exclude the residual ethylene oxide in the filter to waste gas treatment through the control of the second hand valve, the blowdown hand valve and the nitrogen injection stop valve, reduce the leakage of ethylene oxide, protect the environment and personnel safety, and increase the service life of the filter.

[0015] 3. When the ethylene oxide in the ethylene oxide cylinder is used up and the ethylene oxide cylinder is replaced, nitrogen is injected into the nitrogen injection stop valve, the first hand valve and the dosing stop valve before disassembling the ethylene oxide cylinder, which can completely replace the residual ethylene oxide in the ethylene oxide cylinder, and ensure the safety of the ethylene oxide cylinder in the recycling and transportation process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is the overall principle schematic diagram of the utility model;

[0017] Fig. 2 It is the overall structure schematic diagram of the utility model;

[0018] Fig. 3 is the whole internal connection schematic diagram of the utility model

[0019] Mark explanation:

[0020] 1-nitrogen injection stop valve; 2-check valve; 3-pressure gauge; 4-second hand ball valve; 5 dosing pneumatic ball valve; 6-nitrogen pneumatic ball valve; 7-carburetor; 8-temperature sensor; 9-dosing proportional valve; 10-blowdown hand ball valve; 11-filter; 12-first hand ball valve; 13-dosing stop valve; 14-ethylene oxide cylinder; 15-electronic scale; 16-frame; 17-panel; 18-touch operation screen; 19-explosion-proof control box; 20-flow meter. DETAILED DESCRIPTION

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

[0022] As Figs. 1-3 shown, the utility model provides a kind of technical scheme: a kind of ethylene oxide sterilizer safe and efficient dosing device, including ethylene oxide cylinder 14 and frame 16, one side of the frame 16 is provided with panel 17, and the panel 17 is made of stainless steel wire plate.

[0023] The panel 17 is provided with touch operation screen 18 and explosion-proof control box 19, and the frame 16 is provided with carburetor 7, and the carburetor 7 is heated by hot water.

[0024] Temperature sensor 8 and dosing proportional valve 9 are connected to the carburetor 7, and temperature sensor 8 is used to monitor the temperature information of the carburetor 7.

[0025] The ethylene oxide cylinder 14 is placed on the electronic scale 15, and the gas outlet of the ethylene oxide cylinder 14 is divided into two ways after passing through the dosing stop valve 13, one of which is connected with the inlet of the carburetor 7 after passing through the filter 11, dosing pneumatic ball valve 5 and dosing proportional valve 9, and the use of the filter 11 completely excludes the impurities in the ethylene oxide gas, avoids impurities into the sterilizer to pollute the sterilization product, and affects the sterilization effect.

[0026] Dosing proportional valve 9 can automatically adjust the dosing amount and the amount of nitrogen added.

[0027] The outlet of the vaporizer 7 is connected with the ethylene oxide sterilizer through a flow meter 20, which is used to display the ethylene oxide filling rate, and the other end is connected with a waste gas outlet through a first hand valve 12, which is used for waste gas treatment.

[0028] The ethylene oxide cylinder 14 is also connected with a nitrogen supply port, which is also connected with a nitrogen injection stop valve 1, a check valve 2 and a pressure gauge 3. After the pressure gauge 3, the pipeline is divided into two paths, one of which is connected with the ethylene oxide cylinder 14, and the other is connected with the dosing proportional valve 9 of the vaporizer 7.

[0029] The nitrogen supply port is also connected with the vaporizer 7, and a nitrogen pneumatic ball valve 6 is installed on the pipeline. The pipeline is also connected with a second hand valve 4 in front of the filter 11.

[0030] The touch operation screen 18 can complete the zeroing, peeling and calibration of the electronic scale 15. The touch operation screen 18 can also display the temperature of the ethylene oxide sterilizer filling port, the internal temperature of the ethylene oxide sterilizer, the pressure and the temperature information of the vaporizer 7.

[0031] By connecting the nitrogen supply port to the sterilizer, the content of inert gas nitrogen is increased, so that the combustible ethylene oxide concentration in the ethylene oxide sterilizer is reduced to within the explosion limit, making the sterilization more safe. At the same time of injecting nitrogen, the nitrogen blows the ethylene oxide in the filling port into the sterilization chamber, reducing the use of ethylene oxide and reducing the probability of its leakage point;

[0032] At the same time, by controlling the second hand valve 4, the blowdown hand valve 10 and the nitrogen injection stop valve 1, the residual ethylene oxide in the filter 11 can be discharged to the waste gas treatment, reducing the leakage of ethylene oxide, protecting the environment and personnel safety, and prolonging the service life of the filter;

[0033] When the ethylene oxide in the ethylene oxide cylinder 14 is used up and the ethylene oxide cylinder 14 is replaced, the nitrogen injection stop valve 1, the first hand valve 12 and the dosing stop valve 13 are injected with nitrogen before the ethylene oxide cylinder 14 is disassembled. The residual ethylene oxide in the ethylene oxide cylinder 14 can be completely replaced, ensuring the safety of the ethylene oxide cylinder 14 during recycling and transportation.

[0034] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A safe and efficient dosing device for an ethylene oxide sterilizer, characterized in that: The system includes an ethylene oxide cylinder (14), a dosing scale (15), a vaporizer (7), and a frame (16). A panel (17) is provided on one side of the frame (16). A touch screen (18) and an explosion-proof control box (19) are provided on the panel (17). The vaporizer (7) is located inside the frame (16). A temperature sensor (8) and a dosing proportioning valve (9) are connected to the vaporizer (7). The ethylene oxide cylinder (14) is placed on an electronic scale (15). The outlet of the ethylene oxide cylinder (14) is divided into two paths after passing through the dosing shut-off valve (13). One path is connected to the inlet of the vaporizer (7) after passing through the filter (11), the dosing pneumatic ball valve (5) and the dosing proportioning valve (9). The outlet of the vaporizer (7) is connected to the dosing port of the ethylene oxide sterilizer through the flow meter (20). This pipeline is used for dosing the ethylene oxide sterilizer. The other path is connected to the exhaust outlet after passing through the hand ball valve (12) for the treatment of exhaust gas in the dosing pipeline.

2. The safe and efficient dosing device for an ethylene oxide sterilizer according to claim 1, characterized in that, The ethylene oxide cylinder (14) is also connected to a nitrogen supply port, which is also connected to a nitrogen injection shut-off valve (1), a check valve (2) and a pressure gauge (3). After passing through the pressure gauge (3), the gas is divided into two paths, one of which is connected to the ethylene oxide cylinder (14) and the other is connected to the dosing proportioning valve (9) of the vaporizer (7).

3. The safe and efficient dosing device for an ethylene oxide sterilizer according to claim 2, characterized in that, A nitrogen pneumatic ball valve (6) is also installed on the nitrogen supply port that connects to the air inlet of the vaporizer (7).

4. The safe and efficient dosing device for an ethylene oxide sterilizer according to claim 1, characterized in that, The vaporizer (7) is heated by hot water.

5. The safe and efficient dosing device for an ethylene oxide sterilizer according to claim 1, characterized in that, The touch screen (18) can perform zeroing, tare, and calibration of the electronic scale (15). The touch screen (18) can also display the temperature of the dosing port of the ethylene oxide sterilizer, the internal temperature and pressure of the ethylene oxide sterilizer, and the temperature of the vaporizer (7).

6. The safe and efficient dosing device for an ethylene oxide sterilizer according to claim 1, characterized in that, The panel (17) is made of brushed stainless steel.

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