CN102178968B - Chlorine dioxide gas disinfection device - Google Patents
Chlorine dioxide gas disinfection device Download PDFInfo
- Publication number
- CN102178968B CN102178968B CN201110104819.9A CN201110104819A CN102178968B CN 102178968 B CN102178968 B CN 102178968B CN 201110104819 A CN201110104819 A CN 201110104819A CN 102178968 B CN102178968 B CN 102178968B
- Authority
- CN
- China
- Prior art keywords
- chlorine dioxide
- dioxide gas
- pipeline
- disinfection
- nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Apparatus For Disinfection Or Sterilisation (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a chlorine dioxide gas disinfection device, which has the characteristics of quick and thorough disinfection, no corrosion or residue, compact structure, convenience of operation, visible and controllable disinfection process, simple maintenance and the like. The chlorine dioxide gas disinfection device comprises a chlorine dioxide gas generating device, an online concentration detection device, a man-machine interactive platform, and an auxiliary pipeline, wherein the man-machine interactive platform is respectively connected with the chlorine dioxide gas generating device, the online concentration detection device and the auxiliary pipeline; and a detection pipeline provided with a temperature sensor, the online concentration detection device and a circulating fan in turn is communicated with a disinfection space and a chlorine dioxide delivery pipeline respectively. The chlorine dioxide gas disinfection device can be used for high-level disinfection on occasions such as biosafety laboratories, experimental animal rooms, biosafety cabinets, contagious wards, operating rooms, high-efficiency air filter units and the like.
Description
Technical field
The present invention relates to a kind of broad-spectrum disinfectant device, is exactly a kind of efficient chlorine dioxide gas disinfection device that is widely used in high-level biosafety laboratory, operating room, Biohazard Safety Equipment.
Background technology
Chlorine dioxide is a kind of wide spectrum of World Health Organization (WHO) (WHO) confirmation, efficient, nontoxic disinfection sanitizer, there is sterilization wide spectrum, valid density is low, speed of action is fast, nontoxic, use the advantages such as safety, noresidue, extensively as disinfection sanitizer, food preservative, water quality cleansing agent, be applied to the fields such as water treatment, food processing, medical treatment, vegetable and fruit be fresh-keeping.In recent years, Chlorine Dioxide Gas is due to the advantage such as its noresidue of sterilizing, environmental protection, disinfection cycle be short, for space disinfection, attempted more and more, experiment shows, in designated space, only need contain the Chlorine Dioxide Gas of enough concentration, can kill various virus, antibacterial and spore by its strong oxidation.After serial anthrax bacillus attack after the U.S. " 911 " attack of terrorism, Chlorine Dioxide Gas is used to the thorough disinfection to huge buildings such as Anthrax ,AMI mansion, Trenton post offices, and the example of some other biocontainment laboratory, Biohazard Safety Equipment, infectious hospital's operating room sterilization is also seen in report.
Chlorine Dioxide Gas must solve two key problems for space disinfection: the scene generation of Chlorine Dioxide Gas and the real-time monitoring of disinfecting process Chlorine Dioxide Gas concentration and other parameters.Because Chlorine Dioxide Gas character is unstable, explosive when easy decomposition, high concentration, is therefore difficult for storage and transports, manufacture, as early as possible use nearby at the scene.Chlorine Dioxide Gas concentration and sterile environment humiture are very large on Disinfection Effect impact, therefore in disinfecting process, should maintain as far as possible constant Chlorine Dioxide Gas concentration and humiture.
Patent CN 101024492A has announced a kind of Chlorine Dioxide Gas generation method and decontaminating apparatus, take sodium chlorate solution and concentrated hydrochloric acid as raw material, under the condition that passes into hot-air in reaction system, reacts.Although this method has reduced the manufacturing cost of chlorine dioxide, but reactions steps is complicated, system condition is harsh, and adopt concentrated hydrochloric acid as raw material, to reaction vessel and pipeline, require strict, and there is the problems such as removal difficulty of volatility HCl gas, be not therefore suitable for the preparation of Chlorine Dioxide Gas for space disinfection.
Application number is that 200620023427.4 patent has been described a kind of chlorine dioxide sterilizing machine that produces constant density, comprise ClO 2 solution generator and chlorine dioxide gas generating apparatus, by the chlorine dioxide in solution is gasified after activator activation under the effect of many steps stripping device, produce Chlorine Dioxide Gas.Although this device can obtain comparatively stable dissolving chlorine dioxide rate of gasification, but need a plurality of parts to combine use, complex structure, and high concentration of chlorine dioxide solution itself has explosive, is difficult for the danger of longer-term storage, therefore has certain application limitation.
United States Patent (USP) 2000/6042802 has been announced a kind of chlorine dioxide gas disinfection machine, adopts concentrated hydrochloric acid to react and prepare Chlorine Dioxide Gas in special reaction vessel with sodium chlorite solution, adopts photometry on-line real time monitoring Chlorine Dioxide Gas concentration.This invention is prepared in the process of Chlorine Dioxide Gas has concentrated hydrochloric acid to participate in, therefore must use strict etch-proof special material preparation feedback container, and reaction residue needs special handling, whole sterilizing machine complex structure,, there is certain application risk in maintenance difficulty.
Day JP2005224386 of the present invention (A) has described a kind of chlorine dioxide gas sterilizing unit, thereby on the gel of its employing ultraviolet radiation dissolution of high-concentration chlorine dioxide, discharge Chlorine Dioxide Gas, can in consume low amounts of power, supply with long-term and stably the chlorine dioxide of concentration stabilize.But high concentration gel needs preparation in advance, and concentration poor controllability occurs, and cannot realize the accurate control that offsets Conium maculatum L. number and process.
Summary of the invention
The gas in situ preparation, disinfecting process that the object of the invention is to solve Chlorine Dioxide Gas space disinfection be the problem of monitoring in real time, provide a kind of have sterilization rapidly thorough, corrosion-free and residual, compact conformation, simple operation, disinfecting process visual controlled, be easy to the feature chlorine dioxide gas disinfection devices such as maintenance.
Chlorine dioxide gas disinfection device of the present invention comprises Chlorine Dioxide Gas generating means, online concentration detection apparatus, man-machine interactive platform and auxiliary piping, man-machine interactive platform is connected with auxiliary piping with Chlorine Dioxide Gas generator, online concentration detection apparatus respectively, described Chlorine Dioxide Gas generating means comprises three reactor, Ha Shi decompressor, compression chlorine/nitrogen mixture bottle and mass flowmenter, compression chlorine/nitrogen mixture bottle is connected with three reactor front end by setting gradually the gaseous mixture air inlet pipeline of Ha Shi decompressor, gaseous mixture air inlet electromagnetic valve and mass flowmenter, compression chlorine/nitrogen mixture bottle is connected with gaseous mixture air inlet pipeline by the scavenging pipeline of purge solenoid valve is set, and three reactor rear end is by chlorine dioxide air duct UNICOM disinfection space, the signal piping that sets gradually temperature sensor, online concentration detection apparatus and circulating fan respectively with disinfection space and chlorine dioxide air duct UNICOM, online concentration detection apparatus is by light source, collimating lens, spectroscope, air chamber, detect condenser lens, with reference to condenser lens, reference detector, detect detector, light source driving circuit, signal processing circuit, analog to digital conversion circuit, control unit and miscellaneous function unit form, described light source, collimating lens, spectroscope, air chamber, the center of detecting condenser lens and detection detector is arranged in order in same level, described spectroscope becomes 45 degree to install with the parallel rays of incident, spectroscope below sets gradually with reference to condenser lens and reference detector, on described air chamber, lower surface arranges respectively gas feed and gas outlet, light source driving circuit connects light source, and signal processing circuit connects respectively reference detector, detects detector and analog to digital conversion circuit, and control unit connects respectively analog to digital conversion circuit, light source driving circuit and miscellaneous function unit, auxiliary piping comprises that decontaminating apparatus humidification pipeline, sterilizing machine purge protection pipeline and disinfection space pressure reduction monitoring pipeline, decontaminating apparatus humidification pipeline and disinfection space pressure reduction monitoring pipeline communicate with disinfection space respectively, and sterilizing machine purges protection pipeline and communicates with gaseous mixture air inlet pipeline.
Described sterilizing machine scavenging pipeline is comprised of nitrogen cylinder, nitrogen decompressor and nitrogen air inlet electromagnetic valve, and compressed nitrogen gas cylinder is connected with gaseous mixture air inlet pipeline by setting gradually the nitrogen air inlet pipeline of nitrogen decompressor and nitrogen air inlet electromagnetic valve; The humidification pipeline that humidifier tube route sets gradually humidifier, humidification electromagnetic valve and storage tank forms, and humidification pipeline connects respectively humidifier and chlorine dioxide air duct; The detection pipeline that disinfection space pressure reduction monitoring pipe route sets gradually differential pressure pickup and high efficiency particle air filter forms.
Described man-machine interactive platform is comprised of display, PLC module, thermal printer and SD memory device, and PLC module connects respectively display, thermal printer, SD memory device, gaseous mixture air inlet electromagnetic valve, purge solenoid valve, nitrogen air inlet electromagnetic valve, humidification electromagnetic valve, mass flowmenter, humidifier, temperature sensor, differential pressure pickup and circulating fan.
Whole decontaminating apparatus is integrated in the cuboid space of the high 800mm of a being no more than * 500mm * 1400mm of length and width.
Chlorine Dioxide Gas generating means in situ preparation sterilization required not containing the chlorine dioxide of corrosive gas.Online concentration detection apparatus is used for monitoring disinfecting process disinfection space Chlorine Dioxide Gas concentration change, and moves by feedback control generator, and the Chlorine Dioxide Gas concentration of controlling disinfection space keeps constant.Man-machine interactive platform is for monitoring and the control of sterile environment, comprise disinfection concentration, space humidity, pressure, disinfecting time, aeration time, the isoparametric input of flushing of pipeline time, the real-time demonstration of Chlorine Dioxide Gas concentration, space pressure, humidity temporal evolution curve in disinfecting process, storage and output etc.
The advantage of chlorine dioxide gas disinfection device of the present invention is: adopt gas and solid particulate matter reaction in situ preparation Chlorine Dioxide Gas, whole course of reaction does not have water and volatility, corrosive gas to participate in, extremely be applicable to space disinfection and use, while compact conformation, easy operating.Adopt Chlorine Dioxide Gas concentration in UV Absorption method Real-Time Monitoring disinfecting process, solved the problem that chlorine dioxide gas disinfection concentration is accurately controlled.The present invention adopts man-machine interactive platform to control the automatic conversion in Chlorine Dioxide Gas concentration, humiture, pressure and each stage in disinfecting process, the automatization of really having accomplished whole disinfecting process.The safe designs such as scavenging pipeline guarantee that chlorine dioxide gas disinfection device of the present invention has higher safety in utilization.The every key technology the present invention relates to and module organically combine, and have jointly formed that automaticity is high, compact conformation, safe and reliable, Operation and Maintenance chlorine dioxide gas disinfection device easily.
Chlorine dioxide gas disinfection device of the present invention can be used for the high level disinfection of the occasions such as biocontainment laboratory, experimental animal room, Biohazard Safety Equipment, lazaretto ward, operating room, high-efficiency air filtering unit.
Accompanying drawing explanation
Fig. 1 is chlorine dioxide gas disinfection device structure flow chart;
Fig. 2 is the online concentration detection apparatus fundamental diagram of chlorine dioxide gas disinfection device;
Fig. 3 is the indicator bacteria placement location schematic diagram of sterilizing in chlorine dioxide gas disinfection device embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is described further.
As shown in Figure 1, the present invention includes Chlorine Dioxide Gas generating means, online concentration detection apparatus, man-machine interactive platform and auxiliary piping; Man-machine interactive platform is connected with auxiliary piping with Chlorine Dioxide Gas generator, online concentration detection apparatus respectively; Described Chlorine Dioxide Gas generating means comprises three reactor 6,7 and 8, Ha Shi decompressor 21, compression chlorine/nitrogen mixture bottle 22 and mass flowmenter 5, compression chlorine/nitrogen mixture bottle is connected with three reactor front end by setting gradually the gaseous mixture air inlet pipeline of Ha Shi decompressor, gaseous mixture air inlet electromagnetic valve 20 and mass flowmenter, compression chlorine/nitrogen mixture bottle is connected with gaseous mixture air inlet pipeline by the scavenging pipeline of purge solenoid valve 3 is set, and three reactor rear end is by chlorine dioxide air duct UNICOM disinfection space 13; The signal piping that sets gradually air filter 15, temperature sensor 17, online concentration detection apparatus 18 and circulating fan 19 respectively with disinfection space and chlorine dioxide air duct UNICOM; Auxiliary piping comprises that decontaminating apparatus humidification pipeline, sterilizing machine purge protection pipeline and disinfection space pressure reduction monitoring pipeline, decontaminating apparatus humidification pipeline and disinfection space pressure reduction monitoring pipeline communicate with disinfection space respectively, and sterilizing machine purges protection pipeline and communicates with gaseous mixture air inlet pipeline; Sterilizing machine scavenging pipeline is comprised of nitrogen cylinder 1, nitrogen decompressor 2, nitrogen air inlet electromagnetic valve 4, compressed nitrogen gas cylinder by set gradually nitrogen decompressor with nitrogen air inlet pipeline be connected with gaseous mixture air inlet pipeline; Humidification pipeline comprises humidifier 10, electromagnetic valve 11 and storage tank 12, and the humidification pipeline that humidifier tube route sets gradually humidifier, humidification electromagnetic valve and storage tank forms, and humidification pipeline connects respectively humidifier and chlorine dioxide air duct; The detection pipeline that disinfection space pressure reduction monitoring pipe route sets gradually differential pressure pickup 16 and high efficiency particle air filter 14 forms.
Man-machine interactive platform does not embody in Fig. 1, man-machine interactive platform is comprised of display, PLC module, thermal printer and SD memory device, and PLC module connects respectively display, thermal printer, SD memory device, gaseous mixture air inlet electromagnetic valve, purge solenoid valve, nitrogen air inlet electromagnetic valve, humidification electromagnetic valve, mass flowmenter, humidifier, temperature sensor, differential pressure pickup and circulating fan.
As shown in Figure 2, the online concentration detection apparatus 18 of the present invention institute, comprise light source 23, collimating lens 24, spectroscope 26, air chamber 27, condenser lens 28, reference detector 25, detect detector 29, light source drives and signal processing circuit 30, PET isolating membrane 31 and 32, condenser lens 33 etc., described light source, collimating lens, spectroscope, air chamber, the center of detecting condenser lens and detection detector is arranged in order in same level, described spectroscope becomes 45 degree to install with the parallel rays of incident, spectroscope below sets gradually with reference to condenser lens and reference detector, on described air chamber, lower surface arranges respectively gas feed and gas outlet, light source driving circuit connects light source, and signal processing circuit connects respectively reference detector, detects detector and analog to digital conversion circuit, and control unit connects respectively analog to digital conversion circuit, light source driving circuit and miscellaneous function unit.Described collimating lens, spectroscope, detection condenser lens, with reference to the material of condenser lens, be ultraviolet fused quartz.Reference detector and detection detector are to the light activated photodiode of 365nm ultraviolet.Light source adopts 365nm arrowband UV LED (UVLED), and emission spectra scope is 360-370nm.
The light that light source sends is converted into approximate directional light through collimating lens; Parallel rays induces reference signal through after spectroscope rear portion reflection through converging at reference detector with reference to condenser lens, after another part transmission, through air chamber, then converges at and detects detector and induce detection signal through detecting condenser lens; Detection signal and reference signal are carried out current-voltage conversion, are amplified after also filtering by signal processing circuit, then are converted to digital signal through analog to digital conversion circuit; Control unit reads the row operation of going forward side by side of above-mentioned digital signal and obtains the concentration of chlorine dioxide.In most preferred embodiment, light source driving circuit can adopt the LED of Infineon to drive chip LT3950, in other embodiments, can adopt constant-current source chip or LED Linear Driving chip, as LT3092 or CAT4008 etc.; It is core that control unit be take the enhancement mode 51 single-chip microcomputer P89LPC935 at grace intelligence Pu, or adopts the single-chip microcomputers such as PIC, AVR or ARM; The first order current-voltage conversion of signal processing circuit 17 adopts the operational amplifier chip OPA129 of Low-bias Current; The analog-digital converter of analog to digital conversion circuit adopts the AD7942 of 14 bit resolutions, or can to adopt resolution be 12 or 16 s' transducer.
The principle that concentration detects is as described below: the situations such as the wavelength of material molecule absorption spectrum, intensity, polarization state, there is intrinsic relation with the architectural feature of this material, degree of absorption by detected gas to special wavelength light, just can determine composition and the concentration of gas.GAS ABSORPTION meets Lambert-Beer's law:
I(v)＝I
0(v)·e
-α(v)LC
In formula, v is light wave frequency, I
0(v) and I (v) be respectively input light intensity and the output intensity before and after GAS ABSORPTION, the absorptance of α (v) frequency v place gas, C is gas concentration, L is that GAS ABSORPTION has light path.
If use the light of characteristic frequency, and the light intensity of hypothesis light source transmitting is stable, and α (v), I0 (v) are all constants, and L is also constant again, so I (v) and tested gas concentration C are relation one to one.Therefore,, when detecting, as long as detect the value that obtains I (v), the I (v) that just can formulate according to timing signal and the relation curve of C calculate the concentration C of tested gas.
Due to the temperature characterisitic of light source and light source driving circuit element, the light intensity of light source transmitting is not stablized constant, can have influence on the accuracy of testing result.For this reason, design a reference path, obtain the light intensity I ' of light before entering GAS ABSORPTION path
0(v), utilize I (v) and I '
0(v) ratio and the relation curve of C calculate the concentration C of tested gas.Utilize the method for above-mentioned double light path can substantially eliminate the measurement error that light source fluctuation brings.
By measuring the faradic size of photodiode, react light intensity value, faradic current carries out current-voltage conversion, amplification, filtering through signal processing circuit, and this process all adopts low noise operational amplifier to reduce error.Filtered voltage signal, through 14 high-precision adc conversionization digital signals, is sent into control unit.It is core that control unit adopts enhancement 51 single-chip microcomputers at grace intelligence Pu, and the relation curve curing according to timing signal calculates the concentration that obtains chlorine dioxide.Control unit exists result of calculation in the machine storage, by charactron or liquid crystal display screen, shows, by RS232 port, transmits, and is converted to the standard industry analogue signal of 4-20mA by transmission circuit.Also the function such as extended keyboard response again, result printing.
Chlorine dioxide gas disinfection device sterilization minute following step:
(1) according to object and the sterilization levels of the character of disinfection space, needs sterilization, the parameters such as chlorine dioxide gas disinfection concentration, space humidity, disinfecting time are set in man-machine interactive system;
(2) open decontaminating apparatus humidification pipeline, make disinfection space humidity reach setting value;
(3) open decontaminating apparatus Chlorine Dioxide Gas generator, to disinfection space injecting gas chlorine dioxide, simultaneity factor monitoring disinfection space gas concentration, humidity and pressure change;
(4) disinfection space Chlorine Dioxide Gas concentration reaches after setting value, and generator is out of service;
(5) disinfection space is exposed to after setting-up time under setting Chlorine Dioxide Gas concentration, opening disinfection space air-conditioning or air exchange system (notes: be air-conditioning or the air exchange system that is sterilized room self, common laboratory all has, non-decontaminating apparatus is all) carry out aeration, open decontaminating apparatus nitrogen purging protection pipeline, until Chlorine Dioxide Gas concentration is worth lower than breathing is harmful in disinfection space simultaneously;
(6) form disinfecting process summary, store as required or print, whole disinfecting process finishes.
In chlorine dioxide gas disinfection device of the present invention, above-mentioned steps is after completing (1) step, and subsequent step is controlled automatically by man-machine interactive system, without human intervention, reaches the automatization of disinfecting process.
The Chlorine Dioxide Gas generator that described invention relates to adopts the method for sodium chlorite granule and chlorine reaction, and concrete reaction equation is as follows:
2NaClO
2+Cl
2＝2ClO
2+2NaCl
It is reactant that Chlorine Dioxide Gas method for generation be take sodium chlorite granule and certain proportion chlorine/nitrogen mixture body, in product, only have Chlorine Dioxide Gas and solid sodium chloride, thereby make to only have in the gas after reactor the mist of Chlorine Dioxide Gas and nitrogen.For making sodium chlorite granule complete reaction, a certain proportion of Fructus Citri Limoniae acids reacting movable agent of special interpolation, reacting movable agent is not participated in reaction directly, and therefore reactionless by-product occurs.In theory, sodium chlorite is 100% to the conversion ratio of Chlorine Dioxide Gas, and with preceding method comparison, cost is lower.
In above-mentioned reaction, require chlorine complete reaction, because residual chlorine can cause the impacts such as space to be sterilized is corroded, therefore select the mist of a certain proportion of chlorine/nitrogen as reacting gas, through experimental verification, the ratio that chlorine accounts for mist should be controlled at 2%-10% scope.For guaranteeing the completeness of sodium chlorite particle reaction, the ratio of Fructus Citri Limoniae acidic active agent should be controlled within the scope of 20%-30%.
Chlorine Dioxide Gas reactor is designed to cylindrical shape, and its draw ratio is controlled at more than 7: 1, and three above-mentioned barrel type reactor series connection are used.The granularity > 0.3mm of sodium chlorite particulate matter, to guarantee thering is lower air drag after reactor is filled sodium chlorite, the sodium chlorite granule prevented from caking under this granularity simultaneously.
Because chlorine is corrosive to various metals, chlorine itself is also hypertoxic hazardous gas, though the danger that still there is corrosion when concentration is only 2% and reveal, so the decompressor of chlorine/nitrogen mixture body adopts Hastelloy decompressor.With the strict flow that injects mist to reactor of controlling of mass flowmenter.In the present invention, through Hastelloy decompressor, chlorine/nitrogen mixture body pressure is reduced to 1.4kg/cm
2, mass flowmenter span of control is 21pm-301pm.
Described in chlorine dioxide gas disinfection device of the present invention, sterilizing machine scavenging pipeline is gone out for sterilization being finished to the purgings such as Chlorine Dioxide Gas residual in rear device, chlorine, guarantees the safety of device when idle.After whole Chlorine Dioxide Gas occurs and finishes using, inevitably can some chlorine/nitrogen mixture cognition be stranded in reactor front end pipeline, and three reactor is interior by gassy chlorine dioxide, the valve of whole generating means, pipe fitting, joint, pipe fitting parts etc. are had to potential corrosion and threaten, also for the inspection and maintenance of generating means is made troubles.Therefore for the consideration to above-mentioned factor, special design of the present invention sterilizing machine scavenging pipeline, between chlorine/nitrogen mixture bromhidrosis bottle and Ha Shi decompressor, access nitrogen purging branch road, when generator after completion of the reaction, close chlorine/nitrogen mixture bottle, open nitrogen gas cylinder, in generator, inject high pure nitrogen, chlorine and Chlorine Dioxide Gas are being purged out to decontaminating apparatus, thereby guaranteeing the safety of device.
During chlorine dioxide gas disinfection device work of the present invention, first according to object and the sterilization levels of the character of disinfection space, needs sterilization, the parameters such as chlorine dioxide gas disinfection concentration, space humidity, disinfecting time are set in man-machine interactive system; ON cycle blower fan 19 and decontaminating apparatus humidifier 10, make disinfection space humidity reach setting value; Open gaseous mixture air inlet electromagnetic valve 20, three reactor 6,7,8 is started working, and to disinfection space injecting gas chlorine dioxide, simultaneity factor monitoring disinfection space gas concentration, humidity and pressure change; Disinfection space Chlorine Dioxide Gas concentration reaches after setting value, and gaseous mixture air inlet electromagnetic valve 20 is closed, and three reactor 6,7,8 is out of service; Disinfection space is sterilized to setting-up time, open disinfection space air exchange system and carry out aeration, close chlorine/nitrogen mixture bottle simultaneously, open purge solenoid valve 3, nitrogen air inlet electromagnetic valve 4, gaseous mixture air inlet electromagnetic valve 20, decontaminating apparatus pipeline and reactor are carried out to nitrogen purging protection, until Chlorine Dioxide Gas concentration is worth lower than breathing is harmful in disinfection space; Formation disinfecting process summary, stores as required or prints, and whole disinfecting process finishes.In whole disinfecting process, except parameter input, start the machine and close chlorine/nitrogen mixture bottle needs manually, all the other actions are switched and are automatically completed by man-machine interactive platform.
Embodiment
For use procedure and the effect of chlorine dioxide gas disinfection device of the present invention, the embodiment that spy is listed below are described.
It is 50m to volume that the present embodiment adopts chlorine dioxide gas disinfection device of the present invention
3the room of three grades of laboratorys of similar bio-safety carry out disinfection, adopt bacillus subtilis black variety gemma and Staphylococcus albus as sterilization indicator bacteria, according to disinfectant Evaluation of Disinfection method in < < disinfection technology standard (2002 editions) > >, test.
As shown in Figure 3, in 1 to No. 10 position of clean room, place inoculation indicator bacteria inoculation sheet, for Chlorine Dioxide Gas is distributed at space uniform, in room A, B, C, tetra-positions of D, place fan.During sterilization, room temperature maintains 20 ℃, by humidifier, the relative humidity in room is increased to 70%, closed room air conditioning system, to injecting gas chlorine dioxide in room, while gas-monitoring concentration, humidity, pressure and other parameters, when reaching 2.8mg/l, Chlorine Dioxide Gas concentration stops injecting, under this concentration, make room expose 2 hours, in disinfecting process, parameter is continued to monitor, after 2 hours, open air conditioner exhaust system ventilation 10 times, until Chlorine Dioxide Gas concentration reaches human-body safety concentration in room, whole disinfecting process finishes, take off indicator bacteria inoculation sheet and cultivate counting, calculate sterilization logarithm value.
In experimentation, the situation of change of room Chlorine Dioxide Gas concentration, humidity and pressure is carried out to record, chlorine dioxide gas disinfection process of the present invention can be divided into 4 stages: environment humidification stage, Chlorine Dioxide Gas inject the stage, expose sterilisation stage and aeration phase.Environment humidification stage and Chlorine Dioxide Gas injection stage are whole sterile environment formation stages, now humidity, pressure and gas chlorine dioxide concentration all have larger variation, yet in these three parameters of exposure sterilisation stage, substantially remain constant, the stability of chlorine dioxide gas disinfection device disinfecting process of the present invention is described.After the exhaust ventilation of 10 times, in clean room, Chlorine Dioxide Gas concentration is down to human body respiration safety range, enters noresidue abnormal flavour behind room.From room humidification to exhaust ventilation, finish, whole disinfecting process only continues 3.5 hours.
Final result by obtaining the present embodiment sterilization after the cultivation counting to sterilization indicator bacteria sheet as shown in Tables 1 and 2, the Chlorine Dioxide Gas concentration of 2.8mg/l logarithm value of killing to bacillus subtilis black variety gemma under the condition of relative humidity 70% reaches 4.26, reached the level of high-grade sterilization, Staphylococcus albus is killed to logarithm value and reach 8.21, reached the level of sterilizing.The present embodiment explanation chlorine dioxide gas disinfection device of the present invention has very high efficiency to space disinfection, and disinfection cycle is short simultaneously, and work efficiency is high.
Killing effect to bacillus subtilis black variety gemma in table 1 embodiment
In table 2 embodiment to the staphylococcic killing effect of white
Although for illustrative purposes, embodiments of the invention have been provided, but those skilled in the art all can not depart under the appended claims scope of the present invention, it is carried out to multiple Revision and supplement, also can describe various spaces in addition, room to embodiment and implement chlorine dioxide gas disinfections.
Claims (3)
1. a chlorine dioxide gas disinfection device, is characterized in that, comprises Chlorine Dioxide Gas generating means, online concentration detection apparatus, man-machine interactive platform and auxiliary piping, man-machine interactive platform is connected with auxiliary piping with Chlorine Dioxide Gas generator, online concentration detection apparatus respectively, described Chlorine Dioxide Gas generating means comprises three reactor, Ha Shi decompressor, compression chlorine/nitrogen mixture bottle and mass flowmenter, compression chlorine/nitrogen mixture bottle is connected with three reactor front end by setting gradually the gaseous mixture air inlet pipeline of Ha Shi decompressor, gaseous mixture air inlet electromagnetic valve and mass flowmenter, compression chlorine/nitrogen mixture bottle is connected with gaseous mixture air inlet pipeline by the scavenging pipeline of purge solenoid valve is set, and three reactor rear end is by chlorine dioxide air duct UNICOM disinfection space, the signal piping that sets gradually temperature sensor, online concentration detection apparatus and circulating fan respectively with disinfection space and chlorine dioxide air duct UNICOM, online concentration detection apparatus is by light source, collimating lens, spectroscope, air chamber, detect condenser lens, with reference to condenser lens, reference detector, detect detector, light source driving circuit, signal processing circuit, analog to digital conversion circuit, control unit and miscellaneous function unit form, described light source, collimating lens, spectroscope, air chamber, the center of detecting condenser lens and detection detector is arranged in order in same level, described spectroscope becomes 45 degree to install with the parallel rays of incident, spectroscope below sets gradually with reference to condenser lens and reference detector, on described air chamber, lower surface arranges respectively gas feed and gas outlet, light source driving circuit connects light source, and signal processing circuit connects respectively reference detector, detects detector and analog to digital conversion circuit, and control unit connects respectively analog to digital conversion circuit, light source driving circuit and miscellaneous function unit, auxiliary piping comprises that decontaminating apparatus humidification pipeline, sterilizing machine purge protection pipeline and disinfection space pressure reduction monitoring pipeline, decontaminating apparatus humidification pipeline and disinfection space pressure reduction monitoring pipeline communicate with disinfection space respectively, and sterilizing machine purges protection pipeline and communicates with gaseous mixture air inlet pipeline.
2. according to claim 1 chlorine dioxide gas disinfection device, it is characterized in that, described sterilizing machine purges protecting tube route nitrogen cylinder, nitrogen decompressor and nitrogen air inlet electromagnetic valve and forms, and compressed nitrogen gas cylinder is connected with gaseous mixture air inlet pipeline by setting gradually the nitrogen air inlet pipeline of nitrogen decompressor and nitrogen air inlet electromagnetic valve; The humidification pipeline that humidifier tube route sets gradually humidifier, humidification electromagnetic valve and storage tank forms, and humidification pipeline connects respectively humidifier and chlorine dioxide air duct; The detection pipeline that disinfection space pressure reduction monitoring pipe route sets gradually differential pressure pickup and high efficiency particle air filter forms.
3. according to claim 2 chlorine dioxide gas disinfection device, it is characterized in that, described man-machine interactive platform is comprised of display, PLC module, thermal printer and SD memory device, and PLC module connects respectively display, thermal printer, SD memory device, gaseous mixture air inlet electromagnetic valve, purge solenoid valve, nitrogen air inlet electromagnetic valve, humidification electromagnetic valve, mass flowmenter, humidifier, temperature sensor, differential pressure pickup and circulating fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110104819.9A CN102178968B (en) | 2011-04-26 | 2011-04-26 | Chlorine dioxide gas disinfection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110104819.9A CN102178968B (en) | 2011-04-26 | 2011-04-26 | Chlorine dioxide gas disinfection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102178968A CN102178968A (en) | 2011-09-14 |
| CN102178968B true CN102178968B (en) | 2014-02-26 |
Family
ID=44565373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110104819.9A Active CN102178968B (en) | 2011-04-26 | 2011-04-26 | Chlorine dioxide gas disinfection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102178968B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104043142A (en) * | 2014-06-26 | 2014-09-17 | 中国人民解放军军事医学科学院卫生装备研究所 | Portable remote-controlled gas chlorine dioxide space disinfection device |
| CN105435282A (en) * | 2014-08-13 | 2016-03-30 | 赖亮 | Slow-release type continuous disinfection equipment |
| CN111551526A (en) * | 2020-06-11 | 2020-08-18 | 济南科琳宝环境科技有限公司 | External chlorine dioxide disinfectant concentration automatic detection device |
| CN115356919B (en) * | 2022-10-19 | 2023-01-24 | 吉林省百皓科技有限公司 | Self-adaptive adjusting method for PID controller of chlorine dioxide sterilizer |
| CN117191706B (en) * | 2023-09-15 | 2024-02-13 | 小仙炖霸州食品有限公司 | Azometer |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2426871Y (en) * | 1999-06-16 | 2001-04-18 | 上海华沁二氧化氯技术设备有限公司 | Chemically chlorine dioxide generator |
| JP2005224386A (en) * | 2004-02-12 | 2005-08-25 | Daiichi Seidenki Kk | Apparatus for chlorine dioxide gas sterilization |
| CN101607697A (en) * | 2009-08-03 | 2009-12-23 | 佛山市爱普克斯环保科技有限公司 | The preparation method of high-purity chlorine dioxide gas and isolated plant |
| CN101949564A (en) * | 2010-10-15 | 2011-01-19 | 太原和瑞环保科技有限公司 | Central air-conditioning sterilizing device capable of realizing chlorine dioxide dosage dynamic control |
| WO2011038487A1 (en) * | 2009-09-30 | 2011-04-07 | Tso3 Inc. | Sterilization method and apparatus |
-
2011
- 2011-04-26 CN CN201110104819.9A patent/CN102178968B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2426871Y (en) * | 1999-06-16 | 2001-04-18 | 上海华沁二氧化氯技术设备有限公司 | Chemically chlorine dioxide generator |
| JP2005224386A (en) * | 2004-02-12 | 2005-08-25 | Daiichi Seidenki Kk | Apparatus for chlorine dioxide gas sterilization |
| CN101607697A (en) * | 2009-08-03 | 2009-12-23 | 佛山市爱普克斯环保科技有限公司 | The preparation method of high-purity chlorine dioxide gas and isolated plant |
| WO2011038487A1 (en) * | 2009-09-30 | 2011-04-07 | Tso3 Inc. | Sterilization method and apparatus |
| CN101949564A (en) * | 2010-10-15 | 2011-01-19 | 太原和瑞环保科技有限公司 | Central air-conditioning sterilizing device capable of realizing chlorine dioxide dosage dynamic control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102178968A (en) | 2011-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102178968B (en) | Chlorine dioxide gas disinfection device | |
| CN100364613C (en) | System and method for determining concentration of sterilant | |
| CN1195996A (en) | Real-time monitor and control system and method for hydrogen peroxide vapor decontamination | |
| GB2351664A (en) | Sterilizing enclosures | |
| AU731037B2 (en) | Gas recovery system | |
| CN105102005A (en) | Apparatus and process for focused gas phase application of biocide | |
| CN105363051B (en) | Portable integrated Chlorine Dioxide Gas space disinfection device | |
| CN218165694U (en) | Medical waste microwave disposal detection device | |
| CN109238365A (en) | One kind sterilizing parameter monitoring system based on technology of Internet of things medical air | |
| CN206652019U (en) | One kind carries circulation loop crash equipment internal sterilizer | |
| CN109364283A (en) | Medical air sterilizing machine intelligence control system based on ATP detection technique | |
| DE102005004237B3 (en) | Disinfection system for medical instrument comprises disinfection equipment, ozone generator, humidity producer, boilers, measuring chamber with sensors to detect ozone content, humidity, temperature and ozone air mixture flow | |
| CN208692170U (en) | A kind of system producing stable antiseptic solution | |
| CN111551526A (en) | External chlorine dioxide disinfectant concentration automatic detection device | |
| RU180532U1 (en) | INSTALLATION FOR STERILIZATION OF BIOMATERIALS | |
| EP0847763B1 (en) | Control programming arrangement | |
| JP6178314B2 (en) | Decontamination of isolation enclosure | |
| CN1330382C (en) | Apparatus for disinfecting probe of B-ultrasonic apparatus | |
| CN209108179U (en) | A kind of disinfection system using hydrogen peroxide sterilization | |
| CN102807262A (en) | Water box sterilizer | |
| CN104826154A (en) | Air disinfection gasification method and air disinfection gasification apparatus | |
| CN205360051U (en) | Ozone sterilization jar | |
| KR20090078892A (en) | Appatatus of generating ozonied-water | |
| CN111514350A (en) | Automatic control system and method for concentration of disinfection ozone | |
| CN205506783U (en) | Air contaminant experimental apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |