CN113350544A - Cotton vacuum disinfection system and cotton vacuum disinfection method - Google Patents
Cotton vacuum disinfection system and cotton vacuum disinfection method Download PDFInfo
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- CN113350544A CN113350544A CN202010154080.1A CN202010154080A CN113350544A CN 113350544 A CN113350544 A CN 113350544A CN 202010154080 A CN202010154080 A CN 202010154080A CN 113350544 A CN113350544 A CN 113350544A
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- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 124
- 229920000742 Cotton Polymers 0.000 title claims abstract description 113
- 238000000034 method Methods 0.000 title claims abstract description 17
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 107
- 239000004744 fabric Substances 0.000 claims abstract description 67
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 152
- 230000001954 sterilising effect Effects 0.000 claims description 42
- 239000007788 liquid Substances 0.000 claims description 23
- 239000006200 vaporizer Substances 0.000 claims description 17
- 238000001179 sorption measurement Methods 0.000 claims description 13
- 239000003054 catalyst Substances 0.000 claims description 11
- 238000010438 heat treatment Methods 0.000 claims description 11
- 238000005192 partition Methods 0.000 claims description 10
- 230000003993 interaction Effects 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 8
- 239000000945 filler Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims description 4
- 238000006555 catalytic reaction Methods 0.000 claims description 2
- 238000009413 insulation Methods 0.000 claims description 2
- 206010011409 Cross infection Diseases 0.000 abstract description 6
- 206010029803 Nosocomial infection Diseases 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 6
- 230000002147 killing effect Effects 0.000 description 3
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 230000000249 desinfective effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 150000002978 peroxides Chemical class 0.000 description 2
- 241000222122 Candida albicans Species 0.000 description 1
- 241000588724 Escherichia coli Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229940095731 candida albicans Drugs 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/202—Ozone
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
- A61L2/20—Gaseous substances, e.g. vapours
- A61L2/208—Hydrogen peroxide
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
- A61L2/26—Accessories or devices or components used for biocidal treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/20—Targets to be treated
- A61L2202/26—Textiles, e.g. towels, beds, cloths
Abstract
The invention relates to the technical field of medical disinfection, in particular to a cotton vacuum disinfection system and a cotton vacuum disinfection method. The invention combines high vacuum and ozone to promote the surface and the interior of the cotton fabric to simultaneously meet the disinfection requirement, realizes thorough disinfection, shortens the disinfection time of the cotton fabric, shortens 2 hours of the disinfection time of a common bed unit ozone disinfection machine to only 45 minutes, improves the disinfection efficiency of the cotton fabric, effectively separates the cotton fabric before and after disinfection by using a vacuum disinfection system, avoids cross infection of the disinfected and non-disinfected cotton fabric, and ensures the disinfection effectiveness of the cotton fabric.
Description
Technical Field
The invention relates to the technical field of medical disinfection, in particular to a vacuum disinfection system and a disinfection method for cotton fabrics.
Background
The hospital basically adopts a bed unit sterilizer for sterilizing cotton fabrics on a hospital bed, but the bed unit sterilizer can only form very shallow atmospheric pressure difference due to the limitation of internal vacuumizing parts, ozone cannot penetrate deeply, and the cotton fabrics cannot be sterilized at all in a deep area, so that cross infection can be caused; meanwhile, when the existing bed unit disinfection machine is adopted for disinfection, a large amount of ozone is leaked, patients in a room to be disinfected, relatives of the patients, nurses, doctors and other personnel are affected, and the health of the people is affected due to excessive ozone suction.
In addition, ozone disinfects cotton fabric, except needing certain ozone concentration, still needs certain humidity, has the data to show: under the conditions of set ozone concentration, time and environmental temperature, tests of influences of different humidities on the disinfection effect are carried out, the machine is started to disinfect for 2 hours under the conditions that the room temperature is 25 ℃, the relative humidity is 40% and 70%, and the killing rate of escherichia coli and staphylococcus aureus is respectively improved from 90.5% and 92.4% to 100%; the killing rate of the candida albicans is improved from 86.0% to 99.93%. When the relative humidity is 40%, the antigenicity of the HBsAg cannot be damaged after the power-on sterilization is carried out for 6 hours; the relative humidity is increased to 70 percent, and the antigenicity of HBsAg can be completely destroyed after 6h of starting disinfection (Wang Dongli. the disinfection effect of the ozone disinfector on the surface of an object under different humidity conditions is observed [ J ]. the railway is energy-saving, environment-friendly, safe and sanitary, 2003,30(2): 76-77.).
Under the condition that the room temperature is 18-20 ℃, an ozone generating device generates ozone in the same room, and the killing effect of the concentration of the ozone in the air to staphylococcus aureus in the air under different relative humidities is detected. As a result, when the ozone generating apparatus is operated for the same time, the concentration of ozone in the air decreases as the relative humidity increases, but the sterilization effect is small when the relative humidity is less than 35% (for wisdom, Bu Jian. Experimental observation of the effect of relative humidity on the ozone sterilization effect of air [ J ]. J.China J.Disinfection, 1999,16(4): 240-.
The existing ozone disinfection machine for bed units is usually only internally provided with an ozone generator and is not provided with a humidifier, so that whether the ozone disinfection machine for bed units can successfully disinfect quilt, bedding and other articles or not depends on the current disinfection environment, when the environmental humidity is lower than 35%, the disinfection effect is almost not achieved, and in vast and northern areas of China, air is very dry under most conditions and cannot reach the disinfection humidity required by the ozone disinfection machine for bed units.
Therefore, the invention provides a cotton vacuum disinfection system which is different from the structure of the existing bed unit disinfection machine, is convenient to use, can adjust the disinfection humidity, and provides a cotton vacuum disinfection method capable of avoiding cotton cross infection.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a cotton vacuum disinfection system and a cotton vacuum disinfection method. The invention combines high vacuum and ozone to promote the surface and the interior of the cotton fabric to simultaneously meet the disinfection requirement, realizes thorough disinfection, shortens the disinfection time of the cotton fabric, shortens 2 hours of the disinfection time of a common bed unit ozone disinfection machine to only 45 minutes, improves the disinfection efficiency of the cotton fabric, effectively separates the cotton fabric before and after disinfection by using a vacuum disinfection system, avoids cross infection of the disinfected and non-disinfected cotton fabric, and ensures the disinfection effectiveness of the cotton fabric.
The purpose of the invention is realized by the following technical scheme:
a cotton fabric vacuum disinfection system comprises a disinfection device, wherein the disinfection device comprises a vacuum pipeline, at least one vacuum chamber, a hydrogen peroxide pipeline and/or an ozone pipeline, a vacuum branch pipe, a hydrogen peroxide branch pipe and/or an ozone branch pipe are respectively arranged on the side wall of each vacuum chamber, the vacuum pipeline comprises a vacuum main pipe and a vacuum pump arranged on the vacuum main pipe, each vacuum branch pipe is respectively communicated with the vacuum main pipe, the hydrogen peroxide pipeline comprises a hydrogen peroxide main pipe and a hydrogen peroxide liquid storage tank, each hydrogen peroxide branch pipe is respectively communicated with one end of the hydrogen peroxide main pipe, the other end of the hydrogen peroxide main pipe is communicated with the hydrogen peroxide liquid storage tank, and a liquid filler is arranged on the hydrogen peroxide main pipe; the ozone pipeline comprises an ozone main pipe and an ozone generator, each ozone branch pipe is communicated with one end of the ozone main pipe, and the other end of the ozone main pipe is communicated with the ozone generator.
Further, a sensor unit is arranged on the side wall of the vacuum chamber and used for detecting the pressure, the temperature, the humidity and the ozone concentration in the vacuum chamber.
Further, the sensor unit is a sensor assembly, and the sensor assembly comprises a pressure sensor, a temperature and humidity sensor and an ozone concentration sensor.
Furthermore, a first control valve is arranged on the vacuum branch pipe, a second control valve is arranged on the hydrogen peroxide branch pipe, and a third control valve is arranged on the ozone branch pipe. The vacuum branch pipes, the hydrogen peroxide branch pipes and the ozone branch pipes are arranged on the side walls of each vacuum chamber respectively, the first control valves are arranged on the vacuum branch pipes, the second control valves are arranged on the hydrogen peroxide branch pipes, and the third control valves are arranged on the ozone branch pipes, so that the vacuum pump, the ozone generator and the peroxide vaporizer can respectively control a plurality of independent vacuum chambers, each vacuum chamber can independently operate at different schedules, the sterilizing device can select the vacuum chamber with proper volume to sterilize according to the quantity of cotton fabrics, and the service efficiency of the equipment is improved.
Furthermore, an air inlet pipe is arranged on the side wall of the vacuum chamber, and a fourth control valve is arranged on the air inlet pipe. When the vacuum pump vacuumizes a certain vacuum chamber, the first control valves on the vacuum branch pipes corresponding to other vacuum chambers are closed, the first control valves on the branch pipes corresponding to the vacuum chamber are opened, and meanwhile, the fourth control valves of the air inlet pipes corresponding to the vacuum chamber are controlled to be closed, so that the vacuum pump can be started to vacuumize the vacuum chamber.
Further, an air filter is arranged on the air inlet pipe. Through set up air cleaner in the intake pipe, utilize air cleaner to filter impurity, avoid the air that gets into the vacuum chamber to cause the pollution to cotton fabrics.
Further, an ozone adsorption catalyst is also arranged on the vacuum main pipe. In the process of utilizing the vacuum pump to carry out the evacuation to vacuum chamber, for avoiding the ozone in the air in the vacuum chamber directly to be arranged into the environment through the main vacuum pipe, set up ozone adsorption catalyst converter on the main vacuum pipe, utilize ozone adsorption catalyst converter to get rid of the ozone in the air, effectively avoid ozone to arrange into and cause the pollution in the environment.
Furthermore, a hydrogen peroxide vaporizer is also arranged on the hydrogen peroxide main pipe, and a fifth control valve is arranged between the hydrogen peroxide vaporizer and the liquid adding device.
Furthermore, a heat insulation layer is arranged outside the vacuum chamber.
Furthermore, the cotton fabric vacuum disinfection system also comprises a controller, and the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the vacuum pump, the liquid filler and the ozone generator are respectively connected with the controller.
Further, the cotton vacuum disinfection system also comprises a power supply, and the power supply is connected with the controller.
Furthermore, the cotton vacuum disinfection system also comprises a human-computer interaction module, wherein the human-computer interaction module is connected with the controller, and the human-computer interaction module is used for a user to input an operation instruction or check the working information of the equipment.
Furthermore, a heating device is arranged on the side wall of the vacuum chamber and used for heating the vacuum chamber, and the heating device is connected with the controller.
Preferably, above-mentioned cotton fabric vacuum disinfection system still includes the disinfection room, be provided with the partition wall in the disinfection room, the partition wall separates the disinfection room for contaminated area and clean district, embedded establishing of partition wall degassing unit, real empty room's both ends are provided with preceding hatch door and back hatch door respectively, and real empty room communicates with contaminated area through preceding hatch door, and real empty room communicates with clean district through back hatch door.
The invention also provides a cotton vacuum disinfection method, which adopts the cotton vacuum disinfection system and comprises the following steps:
step 100: placing cotton fabrics to be disinfected in a polluted area, opening a front cabin door of an idle vacuum chamber, placing the cotton fabrics to be disinfected into the vacuum chamber through the front cabin door, and then closing the front cabin door;
step 200: opening a first control valve on a vacuum branch pipe corresponding to a vacuum chamber in which cotton fabrics are put, and keeping the closing state of a second control valve, a third control valve and a fourth control valve corresponding to the vacuum chamber; starting a vacuum pump, and vacuumizing the vacuum chamber in which the cotton fabric is put;
step 300: starting the liquid adding device, opening the fifth control valve, adding the hydrogen peroxide liquid into the hydrogen peroxide vaporizer and vaporizing the hydrogen peroxide liquid, closing the fifth control valve, opening the second control valve on the hydrogen peroxide branch pipe corresponding to the vacuum chamber in which the cotton fabric is put, and injecting the vaporized hydrogen peroxide into the vacuum chamber; and/or starting the ozone generator to work, opening a third control valve on an ozone branch pipe corresponding to the vacuum chamber in which the cotton fabrics are put, and injecting ozone into the vacuum chamber;
step 400: sealing the vacuum chamber for 20-40 min under the condition of filling hydrogen peroxide and/or ozone, and sterilizing the cotton fabric;
step 500: starting a vacuum pump, pumping residual hydrogen peroxide and/or ozone in the vacuum chamber subjected to cotton fabric sterilization out of the vacuum chamber, and performing adsorption catalysis on the pumped hydrogen peroxide and/or ozone through an ozone adsorption catalyst in the pumping process;
step 600: opening a fourth control valve corresponding to the vacuum chamber after the cotton fabric sterilization is finished, sucking air outside the vacuum chamber into the vacuum chamber through an air filter, and recovering the vacuum chamber to be in a normal-pressure and atmospheric-pressure state;
step 700: in the clean area, the rear cabin door corresponding to the vacuum chamber which finishes the cotton fabric sterilization is opened, the cotton fabric which finishes the sterilization is taken out from the clean area, and then the rear cabin door of the vacuum chamber is closed.
The invention has the beneficial effects that: the cotton vacuum disinfection system and the cotton vacuum disinfection square support combine high vacuum and ozone to promote the surface and the interior of the cotton to simultaneously meet disinfection requirements and realize thorough disinfection, in addition, the cotton vacuum disinfection system greatly shortens the disinfection time of the cotton, shortens 2 hours of the disinfection time of a common bed unit ozone disinfection machine to only 45 minutes, greatly improves the disinfection efficiency of the cotton, simultaneously adopts the arrangement of a pollution area and a clean area to effectively separate the cotton before disinfection and the cotton after disinfection, avoids the cross infection of the disinfected cotton and the non-disinfected cotton, ensures the effective disinfection, and is widely suitable for disinfecting cotton on hospital beds, other hospital beds or household beds.
Drawings
FIG. 1 is a schematic view of the construction of the disinfection apparatus according to the invention;
FIG. 2 is a schematic view of the piping structure of the sterilizing unit of the present invention;
FIG. 3 is a schematic view of another embodiment of the disinfection apparatus of the present invention;
FIG. 4 is a schematic view of the vacuum sterilization system for cotton fabrics according to the present invention;
in the figure, 1-partition wall, 2-polluted area, 3-clean area, 4-disinfection device, 5-vacuum chamber, 6-vacuum branch pipe, 7-hydrogen peroxide branch pipe, 8-ozone branch pipe, 9-vacuum main pipe, 10-vacuum pump, 11-ozone adsorption catalyst, 12-hydrogen peroxide main pipe, 13-hydrogen peroxide vaporizer, 14-liquid filler, 15-hydrogen peroxide liquid storage tank, 16-ozone main pipe, 17-ozone generator, 18-first control valve, 19-second control valve, 20-third control valve, 21-air inlet pipe, 22-fourth control valve, 23-air filter, 24-sensor unit, 25-heat preservation layer, 26-heating device, 27-man-machine interaction module, 28-cotton, 29-fifth control valve.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1 and 2, a cotton vacuum sterilization system comprises a sterilization device 4, wherein the sterilization device 4 comprises a vacuum pipeline, at least one vacuum chamber 5, a hydrogen peroxide pipeline and/or an ozone pipeline, a vacuum branch pipe 6, a hydrogen peroxide branch pipe 7 and/or an ozone branch pipe 8 are respectively arranged on the side wall of each vacuum chamber 5, the vacuum pipeline comprises a vacuum main pipe 9 and a vacuum pump 10 arranged on the vacuum main pipe 9, each vacuum branch pipe 6 is respectively communicated with the vacuum main pipe 9, the hydrogen peroxide pipeline comprises a hydrogen peroxide main pipe 12 and a hydrogen peroxide storage tank 15, each hydrogen peroxide branch pipe 7 is respectively communicated with one end of the hydrogen peroxide main pipe 12, the other end of the hydrogen peroxide main pipe 12 is communicated with the hydrogen peroxide storage tank 15, and a liquid filler 14 is arranged on the hydrogen peroxide main pipe 12; the ozone pipeline comprises an ozone main pipe 16 and an ozone generator 17, each ozone branch pipe 8 is communicated with one end of the ozone main pipe 16, and the other end of the ozone main pipe 16 is communicated with the ozone generator 17.
Specifically, a sensor unit 24 is provided on a side wall of the vacuum chamber 5, and the sensor unit 24 is used for detecting pressure, temperature, humidity, and ozone concentration inside the vacuum chamber 5.
Specifically, the sensor unit 24 is a sensor assembly including a pressure sensor, a temperature and humidity sensor, and an ozone concentration sensor.
Specifically, a first control valve 18 is arranged on the vacuum branch pipe 6, a second control valve 19 is arranged on the hydrogen peroxide branch pipe 7, and a third control valve 20 is arranged on the ozone branch pipe 8. The vacuum branch pipes 6, the hydrogen peroxide branch pipes 7 and the ozone branch pipes 8 are respectively arranged on the side walls of each vacuum chamber 5, the first control valves 18 are arranged on the vacuum branch pipes 6, the second control valves 19 are arranged on the hydrogen peroxide branch pipes 7, and the third control valves 20 are arranged on the ozone branch pipes 8, so that the respective control of one vacuum pump 10, one ozone generator 17 and one peroxide vaporizer 13 on a plurality of independent vacuum chambers 5 can be realized, each vacuum chamber 5 can be in independent operation at different progresses, the sterilizing device 4 can select the vacuum chamber 5 with proper volume to sterilize according to the amount of cotton fabrics, and the use efficiency of the equipment is improved.
Specifically, the disinfection device 4 is a bed unit disinfection machine, and is mainly used for disinfecting cotton fabrics on hospital beds, other hospital beds or household beds.
Specifically, an air inlet pipe 21 is disposed on a side wall of the vacuum chamber 5, and a fourth control valve 22 is disposed on the air inlet pipe 21. When the vacuum pump 10 performs vacuum pumping on a certain vacuum chamber 5, the first control valve 18 on the vacuum branch pipe 6 corresponding to the other vacuum chamber 5 is closed, the first control valve 18 on the vacuum branch pipe 6 corresponding to the vacuum chamber 5 is opened, and the fourth control valve 22 of the air inlet pipe 21 corresponding to the vacuum chamber 5 is controlled to be closed, so that the vacuum pump 10 can be started (the working state of the vacuum pump can be adjusted according to the actual use state, namely, the vacuum pump can be continuously operated or intermittently operated), and the vacuum pumping processing is performed on the vacuum chamber 5.
Specifically, an air filter 23 is provided on the intake pipe 21. By providing the air filter 23 on the air inlet pipe 21, the air filter 23 is used to filter impurities, thereby preventing the cotton fabric 28 from being polluted by the air entering the vacuum chamber 5.
Specifically, the vacuum main pipe 9 is further provided with an ozone adsorption catalyst 11. In the process of vacuumizing the vacuum chamber 5 by using the vacuum pump 10, in order to prevent ozone in the air in the vacuum chamber 5 from being directly discharged into the environment through the vacuum main pipe 9, the ozone adsorption catalyst 11 is arranged on the vacuum main pipe 9, and the ozone in the air is removed by using the ozone adsorption catalyst 11, so that the ozone is effectively prevented from being discharged into the environment to cause pollution.
Specifically, the hydrogen peroxide main pipe 12 is further provided with a hydrogen peroxide vaporizer 13, the hydrogen peroxide vaporizer 13 is used to convert liquid hydrogen peroxide into vapor, and the hydrogen peroxide vaporizer 13 is specifically a heating device for vaporizing hydrogen peroxide.
Specifically, the liquid charger 14 is disposed between the hydrogen peroxide vaporizer 13 and the hydrogen peroxide storage tank 15. Preferably, a fifth control valve 29 is further disposed between the hydrogen peroxide vaporizer 13 and the liquid charger 14.
Specifically, an insulating layer 25 is arranged outside the vacuum chamber 5.
Specifically, the cotton vacuum sterilization system further comprises a controller, and the first control valve 18, the second control valve 19, the third control valve 20, the fourth control valve 22, the fifth control valve 29, the vacuum pump 10, the hydrogen peroxide vaporizer 13, the liquid filler 14 and the ozone generator 17 are respectively connected with the controller.
Specifically, the cotton vacuum disinfection system further comprises a power supply, and the power supply is connected with the controller.
Specifically, the cotton vacuum disinfection system further comprises a human-computer interaction module 27, the human-computer interaction module 27 is connected with the controller, and the human-computer interaction module 27 is used for a user to input an operation instruction or check the working information of the equipment.
Specifically, a heating device 26 is disposed on a side wall of the vacuum chamber 5, the heating device 26 is used for heating the vacuum chamber 5, and the heating device 26 is connected to the controller.
As shown in fig. 3, the sterilizing device 4 preferably comprises a plurality of vacuum chambers 5, and the vacuum chambers 5 are arranged in an array, i.e. the vacuum chambers 5 may be arranged in a uniform layer or in a uniform layer.
As shown in fig. 4, the cotton vacuum sterilization system further comprises a sterilization chamber, wherein a partition wall 1 is arranged in the sterilization chamber, the sterilization chamber is divided into a contaminated area 2 and a clean area 3 by the partition wall 1, a sterilization device is embedded in the partition wall 1, a front cabin door and a rear cabin door are respectively arranged at two ends of a vacuum chamber 5, the vacuum chamber 5 is communicated with the contaminated area 2 through the front cabin door, and the vacuum chamber 5 is communicated with the clean area 3 through the rear cabin door.
A cotton vacuum disinfection method adopts the cotton vacuum disinfection system, and comprises the following steps:
step 100: placing cotton fabric 28 to be disinfected in the polluted area 2, opening a front cabin door of the idle vacuum chamber 5, putting the cotton fabric 28 to be disinfected into the vacuum chamber 5 through the front cabin door, and then closing the front cabin door;
step 200: opening the first control valve 18 of the vacuum branch pipe 6 corresponding to the vacuum chamber 5 into which the cotton piece 28 has been put, and maintaining the closed state of the second control valve 19, the third control valve 20 and the fourth control valve 22 corresponding to the vacuum chamber 5; starting the vacuum pump 10 to vacuumize the vacuum chamber 5 in which the cotton fabric 28 is put;
step 300: starting the liquid adding device 14, opening the fifth control valve 29, adding the hydrogen peroxide liquid into the hydrogen peroxide vaporizer 13 for vaporization, closing the fifth control valve 29, opening the second control valve 19 on the hydrogen peroxide branch pipe 7 corresponding to the vacuum chamber 5 in which the cotton goods 28 are placed, and injecting the vaporized hydrogen peroxide into the vacuum chamber 5; and/or starting the ozone generator 17 to work, opening the third control valve 20 on the ozone branch pipe 7 corresponding to the vacuum chamber 5 in which the cotton fabric 28 is put, and injecting ozone into the vacuum chamber 5;
step 400: sealing the vacuum chamber 5 in the state of being filled with hydrogen peroxide and/or ozone for 20 to 40 minutes to sterilize the cotton fabric 28;
step 500: starting the vacuum pump 10, pumping the residual hydrogen peroxide and/or ozone in the vacuum chamber 5 sterilized by the cotton fabric 28 out of the vacuum chamber 5, and in the pumping process, adsorbing and catalyzing the pumped hydrogen peroxide and/or ozone by the ozone adsorption catalyst 11;
step 600: opening the fourth control valve 22 corresponding to the vacuum chamber 5 in which the cotton goods 28 are sterilized, sucking the air outside the vacuum chamber 5 into the vacuum chamber 5 through the air filter 23, and returning the vacuum chamber 5 to the normal atmospheric pressure state;
step 700: in the clean area 3, the rear hatch door corresponding to the vacuum chamber 5 in which the sterilization of the cotton goods 28 has been completed is opened, the cotton goods 28 in which the sterilization has been completed is taken out from the clean area 3, and then the rear hatch door of the vacuum chamber 5 is closed.
In the specific operation process, the cotton fabric 28 to be disinfected is placed in the polluted area 2, the front hatch door of the idle vacuum chamber 5 is opened, the cotton fabric 28 to be disinfected is placed in the vacuum chamber 5 of the disinfection device through the front hatch door, for the vacuum chamber 5, when the vacuum chamber 5 needs to be vacuumized, the first control valve 18 on the vacuum branch pipe 6 corresponding to the vacuum chamber 5 is opened, meanwhile, the fourth control valve 22 of the air inlet pipe 21 corresponding to the vacuum chamber 5 is controlled to be closed, and then the vacuum pump 10 can be started, so that the vacuum chamber 5 can be vacuumized; when hydrogen peroxide needs to be injected into the vacuum chamber 5, the second control valve 19 on the corresponding hydrogen peroxide branch pipe 7 is opened, the hydrogen peroxide vaporizer 13 and the liquid adding device 14 are started to work, and then the hydrogen peroxide can be injected into the vacuum chamber 5; when ozone needs to be injected into the vacuum chamber 5, the third control valve 20 on the corresponding ozone branch pipe 7 is opened, and the ozone generator 17 is started to work, so that the ozone can be injected into the vacuum chamber 5; the specific disinfection process is that after the cotton fabric to be disinfected is put in, the vacuum chamber 5 is closed, then the vacuum chamber 5 is vacuumized, hydrogen peroxide is injected into the vacuum chamber 5, and under the vacuum state, hydrogen peroxide disinfectant in the vacuum chamber 5 is in a gas slurry state; injecting ozone into the vacuum chamber 5, recovering the vacuum chamber to atmospheric pressure, sealing and keeping for 20-40 minutes to sterilize the cotton fabric 28, wherein the sealing is preferably carried out for 35 minutes in the embodiment; then the vacuum pump 10 is started again, the vacuum chamber 5 is vacuumized to 1000par, the fourth control valve 22 is opened again, the vacuum chamber 5 is enabled to restore to the atmospheric pressure state again, then the rear cabin door is opened, the cotton fabric 28 is taken out from the clean 3 area, the disinfection process of the cotton fabric 28 is completed, the cotton fabric 28 before disinfection and after disinfection can be effectively separated by separating the pollution area 2 from the clean area 3, the cross infection of the disinfected cotton fabric 28 and the non-disinfected cotton fabric 28 is avoided, the disinfection is ensured to be effectively carried out, and the disinfection time of the cotton fabric 28 is greatly shortened.
The foregoing is illustrative of the preferred embodiments of this invention, and it is to be understood that the invention is not limited to the precise form disclosed herein and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the concept as disclosed herein, either as described above or as apparent to those skilled in the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A cotton fabric vacuum disinfection system comprises a disinfection device and is characterized in that the disinfection device comprises a vacuum pipeline, at least one vacuum chamber, a hydrogen peroxide pipeline and/or an ozone pipeline, wherein a vacuum branch pipe, a hydrogen peroxide branch pipe and/or an ozone branch pipe are respectively arranged on the side wall of each vacuum chamber; the ozone pipeline comprises an ozone main pipe and an ozone generator, each ozone branch pipe is communicated with one end of the ozone main pipe, and the other end of the ozone main pipe is communicated with the ozone generator.
2. A cotton vacuum disinfection system as claimed in claim 1, wherein said vacuum chamber is provided with sensor units on its side walls for detecting pressure, temperature, humidity and ozone concentration within the vacuum chamber.
3. A vacuum sterilization system for cotton goods as claimed in claim 1, wherein the vacuum branch pipe is provided with a first control valve, the hydrogen peroxide branch pipe is provided with a second control valve, and the ozone branch pipe is provided with a third control valve; and an air inlet pipe is arranged on the side wall of the vacuum chamber, and a fourth control valve is arranged on the air inlet pipe.
4. A cotton vacuum sterilization system according to claim 3, wherein said air inlet pipe is provided with an air filter; the vacuum main pipe is also provided with an ozone adsorption catalyst.
5. The vacuum disinfection system for cotton fabrics as claimed in claim 4, wherein said main hydrogen peroxide pipe is further provided with a hydrogen peroxide vaporizer, a fifth control valve is arranged between said hydrogen peroxide vaporizer and said liquid filler, and said vacuum chamber is externally provided with a heat insulation layer.
6. A vacuum sterilization system for cotton goods as claimed in claim 1, wherein the side wall of the vacuum chamber is provided with a heating means for heating the vacuum chamber.
7. A cotton vacuum sterilization system according to claim 2, wherein said sensor unit is a sensor assembly, said sensor assembly comprising a pressure sensor, a temperature and humidity sensor and an ozone concentration sensor.
8. The vacuum sterilization system for cotton fabrics according to claim 5, further comprising a controller and a human-computer interaction module, wherein the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve, the vacuum pump, the liquid filler and the ozone generator are respectively connected with the controller; the human-computer interaction module is connected with the controller and used for a user to input an operation instruction or check equipment working information.
9. The vacuum sterilization system for cotton fabrics according to claim 5, further comprising a sterilization chamber, wherein a partition wall is arranged in the sterilization chamber, the partition wall divides the sterilization chamber into a contaminated area and a clean area, the sterilization device is embedded in the partition wall, a front door and a rear door are respectively arranged at two ends of the vacuum chamber, the vacuum chamber is communicated with the contaminated area through the front door, and the vacuum chamber is communicated with the clean area through the rear door.
10. A method of vacuum sterilizing cotton, using the cotton vacuum sterilizing system of claim 9, comprising the steps of:
step 100: placing cotton fabrics to be disinfected in a polluted area, opening a front cabin door of an idle vacuum chamber, placing the cotton fabrics to be disinfected into the vacuum chamber through the front cabin door, and then closing the front cabin door;
step 200: opening a first control valve on a vacuum branch pipe corresponding to a vacuum chamber in which cotton fabrics are put, and keeping the closing state of a second control valve, a third control valve and a fourth control valve corresponding to the vacuum chamber; starting a vacuum pump, and vacuumizing the vacuum chamber in which the cotton fabric is put;
step 300: starting the liquid adding device, opening the fifth control valve, adding the hydrogen peroxide liquid into the hydrogen peroxide vaporizer and vaporizing the hydrogen peroxide liquid, closing the fifth control valve, opening a second control valve on a hydrogen peroxide branch pipe corresponding to the vacuum chamber in which the cotton fabric is put, and injecting the vaporized hydrogen peroxide into the vacuum chamber; and/or starting the ozone generator to work, opening a third control valve on an ozone branch pipe corresponding to the vacuum chamber in which the cotton fabrics are put, and injecting ozone into the vacuum chamber;
step 400: sealing the vacuum chamber for 20-40 min under the condition of filling hydrogen peroxide and/or ozone, and sterilizing the cotton fabric;
step 500: starting a vacuum pump, pumping residual hydrogen peroxide and/or ozone in the vacuum chamber subjected to cotton fabric sterilization out of the vacuum chamber, and performing adsorption catalysis on the pumped hydrogen peroxide and/or ozone through an ozone adsorption catalyst in the pumping process;
step 600: opening a fourth control valve corresponding to the vacuum chamber after the cotton fabric sterilization is finished, sucking air outside the vacuum chamber into the vacuum chamber through an air filter, and recovering the vacuum chamber to be in a normal-pressure and atmospheric-pressure state;
step 700: in the clean area, the rear cabin door corresponding to the vacuum chamber which finishes the cotton fabric sterilization is opened, the cotton fabric which finishes the sterilization is taken out from the clean area, and then the rear cabin door of the vacuum chamber is closed.
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