CN211703466U - High-efficient sterilization system of vacuum circulation ozone - Google Patents
High-efficient sterilization system of vacuum circulation ozone Download PDFInfo
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Abstract
The utility model provides a vacuum circulating ozone high-efficiency sterilization system, which comprises an oxygen barrel, an ozone making machine, a humidifier, a pressure pump, a temperature control buffer barrel, a sterilization drum, an air pump and a dehumidification dryer, which are connected in sequence, wherein the dehumidification dryer is also connected with the ozone making machine; a humidity monitoring device is arranged on a pipeline between the humidifier and the pressure pump, a first pressure regulating valve is arranged on a pipeline connecting the temperature control buffer barrel and the sterilization drum, and a second pressure regulating valve is arranged on a pipeline connecting the sterilization drum and the air pump; the sterilizing drum is rotatably arranged, and a heater is arranged on the outer wall of the sterilizing drum. The utility model can discharge air or miscellaneous gas in tiny pores on the surface of the detected product, so that ozone can enter the tiny pores of the detected product for sterilization; in addition, the ozone circulates in the system, the ultrahigh-concentration ozone is repeatedly produced, the sterilization efficiency is high, the effect is good, and the method is suitable for multi-layer accumulated inspection products such as sheets, particles, powder and the like.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a sterilization system, concretely relates to high-efficient sterilization system of vacuum circulation ozone.
[ background of the invention ]
Many substances are not necessarily suitable for high-temperature sterilization or radiation irradiation sterilization, and can be sterilized only at normal temperature. Among them, gas sterilization such as ozone or ethylene oxide sterilization is one of the options. However, in general, gas sterilization is adopted, ethylene oxide is toxic, known as a human carcinogen, is easy to cause central nervous toxicity and reproductive injury, and is not suitable for food sterilization, and ozone is an excellent choice. Ozone is generally only suitable for sterilization in liquids, such as fruit soaked in water. For solid which can not be soaked in water or powdery substance which is afraid of water, such as garlic slices or garlic powder, even if ozone is blown to a detected product under ordinary conditions, only surface sterilization can be carried out, and for powder or solid which has tiny pores or is piled, ordinary ozone blowing sterilization is limited to superficial sterilization, and the effect is poor or ineffective. Especially, the average ozone concentration of the ozone gas introduced for sterilization is low, the sterilization efficiency is about 98% only about 0.2-5.0 ppm, the log reduction value (LogReductionValue) of the sterilization efficiency is about 2, and the sterilization efficiency can not meet the microbial cleanliness standard (less than 100cfu/g) of general food (reference documents: Guo Yi, Lichue, Liguangda. the sterilization method of the Chinese medicine crude powder and the equipment selection. the equipment application and research. 2016, 29 (491-16)).
The existing improved vacuum sterilization method is that the product is put on a frame of a vacuum box, and ozone is introduced after vacuum pumping, so that the number of the product bacteria can be greatly reduced (reference documents: Guo Ying, Lichue and Liguangda. sterilization method of the Chinese medicine primary powder and equipment selection. equipment application and research 2016, 29 (491): 9-16, Chinese patent: an ozone sterilization dryer; CN109505106A, Chinese patent: multi-stage vacuum pumping device and method of a three-oxygen low-temperature sterilizer; CN 103520748A). Unfortunately, this method is not effective for dry sterilization of multi-layered products such as garlic powder (about 0.5mm particle size) or garlic flakes (about L × W × D ═ 15 × 10 × 1mm) because the accumulation between the particles is blocked or the pores are small to a few millimeters, and ozone hardly reaches the inner layer or penetrates into the pores. For example, the study of Guo Yi (the reference: Guo Yi, Lichung moth, Liguanda. the sterilization method of the crude drug powder of traditional Chinese medicine and the equipment selection. the equipment application and study. 2016, 29 (491): 9-16) that the traditional Chinese medicine powder is suspended in ozone for sterilization, the sterilization efficiency is only 98 percent at most, and the log reduction rate of sterilization is less than 2. Korean patent (KR101408268B1) has used a roller-shaped screw device for ozone sterilization of cereals to improve the barrier of accumulation between particles, but does not say how the sterilization effect is. In reality, it seems that no one has combined vacuum ozone sterilization and rolling stirring device to solve the sterilization barrier caused by the accumulation of the test product.
Regarding the susceptibility of bacteria to ozone Sterilization, studies by Dufresne (reference: S. Dufresne, AHewitt, S Robitaile. Ozone Sterilization: Another Option for Healthcare in the21st century. Am J infection control.2004, 32 (3): E26-E27) revealed that bacteria of the general nutrient > fungus > bacteria spores, among which the ozone susceptibility of the bacteria spores is the worst, the most difficult to be sterilized by ozone, and the ozone Sterilization study in this respect is lacking. And it seems that the efficiency of ozone sterilization is related to the water content of the cells as a result of the germination of endospores by Setlow (reference: P Setlow. Germination of Spores of Bacillus speces: What We Know and Do Not Know. J Bacteriol.2014, 196 (7): 1297-1305.). On the other hand, Sharma (reference: Manju Sharma, James B. Hudson. Ozone gas is an effective and reactive agent. am J infection control. 2008. 36: 559-. Shapiro (US patent: Sterilizing and packaging device; US3719017) and Karlson (US patent: Ozone sterilization method; US 5069872) both report that Ozone and water mist mixing sterilization is used, Bedard (US patent: Ozone sterilization method; US 7582257B 2) further comprises a step of Ozone sterilization, and that the sterilization temperature of Ozone sterilization is preferably about 20-25 ℃ relative humidity of 90-95%, and the sterilization tank is evacuated under reduced pressure (0.5mmHg) to reduce the boiling point of water to 90-100% water vapor humidity of the Ozone sterilization tank. Benard also used pure oxygen as the ozone source for the ozone generator to increase the ozone concentration to 85ppm, and placed the goods in a container (packing container) or a bag (pound) for ozone sterilization. However, although the above-mentioned ozone sterilization method is patented, it is not described the sterilization value, and how the actual sterilization effect is, it is not clear?
Regarding the problem that ozone cannot go deep into the core of the sample to be sterilized due to the accumulation of the sterilized samples, Rongman forest (Chinese patent: an ozone sterilization dryer; CN109505106A), high-brightness wary (Chinese patent: multistage vacuum pumping device and method of a trioxane low-temperature sterilizer; CN103520748A) and Suhaiwei (Chinese patent: vacuum ozone sterilization cabinet; CN202740445U) have proposed the solution of introducing ozone by vacuum pumping, but no answer is provided for the problem that the ozone circulation is blocked and the ozone enters the overlapped surface of the sample even for a large number of particles or stacked sheets. In order to solve the problem of stacking the test products, the above korean patent uses screw stirring of sterilized grains to solve the problem of stacking the test products, but does not first vacuumize the sterilized objects and introduce ozone, so that the method is not suitable for sterilizing porous objects such as garlic powder or garlic flakes. Wuzheng peak (Chinese patent: a multifunctional inverted cone-shaped sterilization equipment and sterilization process; CN104906607B) has a vacuum barrel and stirring, but is sterilized by steam at 115 ℃, is not suitable for water-intolerance or dry powder substance sterilization, and the Wuzheng peak equipment has no clear vacuum pumping step when being sterilized by ozone at normal temperature, and the vacuum pumping benefit is that the tested product is dried, but the ozone sterilization barrier for eliminating the pores of the tested product is not eliminated, and the sterilizer of Tongtianfa (Chinese patent: a traditional Chinese medicine decoction piece and particle electrolysis ozone sterilizer; CN106552274A) has similar problems.
In the review of the above patents and literature, we have found several phenomena, and first, many inactivated spores or cells remain in the sample to be sterilized, and it is difficult to sterilize with ozone. Second, even the high ozone concentration produced by pure oxygen has not been effective enough to reduce logcfu to a food grade ideal. Again, the small particles or flakes that accumulate prevent ozone from reaching the deep core of the accumulation for sterilization. Moreover, the ozone can not turn to enter the small pore space for sterilization. In the microscopic small pore world, the surface air or impurities adsorbed by Van der force (van der force) can hinder the sterilization effect of ozone. The general ozone sterilization method has no report to discuss the micro-gap problem of the sample in the research and development scope of sterilization. How to solve the above problems of the ozone sterilization method becomes an important subject.
We have found that ozone sterilization is inefficient, and there are other reasons why ozone cannot penetrate into crevice sterilization. The sterility guarantee of the final sterilization general medicine is 0.999999, (logPNs) the non-sterility probability is 1-0.99999999-10-6The microbial cleanliness standard of general food is 100cfu/g, and the reduction value of the sterilization logarithm value of the general food is about 4-5 to meet the cleanliness requirement of the food, which is not met by previous researches or reports, such as Guo and Bedard researches.
In addition, how ozone sterilization solves the problem of sterilization of endospores has not been studied. Also, the highest concentration of Ozone introduced by the prior art is about 85ppm, which concentration generally has an Ozone sterilization efficiency of less than 4log cfu (Bedard: U.S. Pat. No.: Ozone sterilization method; U.S. Pat. No. 5,7582257B 2). However, to achieve effective sterilization efficiency, the sterilization efficiency needs to be reduced to 6logcfu, the food grade requirement needs to be lower than 100cfu/g, the sterilization efficiency of 4-6 logcfu is often needed, and the sterilization needs to be performed only by high-efficiency ozone sterilization, and the technical problems cannot be solved in the prior art.
[ summary of the invention ]
The technical problem to be solved by the utility model is to provide a high-efficiency sterilization system of vacuum circulating ozone, which can discharge air or miscellaneous gas in tiny pores on the surface of a detected product, so that ozone can enter the tiny pores of the detected product for sterilization; in addition, the ozone circulates in the system, the ultrahigh-concentration ozone is repeatedly produced, the sterilization efficiency is high, the effect is good, and the method is suitable for multi-layer accumulated inspection products such as sheets, particles, powder and the like.
The utility model discloses a solve above-mentioned technical problem through following technical scheme:
an efficient sterilization system of vacuum circulating ozone comprises an oxygen barrel, an ozone making machine, a humidifier, a pressure pump, a temperature control buffer barrel, a sterilization drum, an air suction pump and a dehumidification dryer which are sequentially connected, wherein the dehumidification dryer is also connected with the ozone making machine;
a humidity monitoring device is arranged on a pipeline between the humidifier and the pressure pump, a first pressure regulating valve is arranged on a pipeline connecting the temperature control buffer barrel and the sterilization drum, and a second pressure regulating valve is arranged on a pipeline connecting the sterilization drum and the air pump;
the sterilization drum is rotationally arranged, a heater is arranged on the outer wall of the sterilization drum, a temperature measuring element is arranged in the sterilization drum, and a first pressure monitoring device is arranged at an outlet of the sterilization drum;
the product to be sterilized is placed in the sterilizing drum, and the sterilizing drum can pump out the gas in the sterilizing drum and the product to be sterilized through the air pump; pure oxygen can be changed into micro-wet ozone after passing through the ozone making machine, the humidifier, the pressure pump and the temperature control buffer barrel in sequence and then is led into the sterilization drum; the sterilizing drum can be rotationally stirred, ozone is introduced into one side of the sterilizing drum, ozone is discharged from one side of the sterilizing drum, and the temperature and the pressure are detected through the temperature measuring element and the first pressure monitoring device to control the ozone environment in the sterilizing drum;
and the ozone pumped out from the air pump passes through the dehumidifying dryer and then enters the ozone generator, so that high-concentration ozone gas is circularly produced and circularly sterilized.
Further, the inner wall of the sterilization rotary drum is fixedly provided with a stirring paddle.
Furthermore, the humidifier is a V-shaped humidity adjusting and humidifying barrel, the bottom of the V-shaped humidity adjusting and humidifying barrel is connected with the water inlet pipe, an inclined ozone inlet nozzle is arranged in the V-shaped humidity adjusting and humidifying barrel, and the inclined ozone inlet nozzle is connected with the ozone making machine through a pipeline.
Furthermore, a second pressure monitoring device is arranged on a pipeline connecting the oblique ozone inlet nozzle and the ozone making machine.
Furthermore, a temperature control condenser is arranged in the temperature control buffer barrel, and a drainage pipeline is arranged at the bottom of the temperature control buffer barrel.
Further, the dehumidifying dryer comprises a dehumidifier and a drying pipe, and the air pump is connected to the ozone generator sequentially through the dehumidifier and the drying pipe.
The utility model has the advantages as follows:
the utility model is characterized in that the inspected product with bacteria activation or spore germination is placed in a rotary sterilizing rotary drum and heated to 37-56 ℃ by a heater, and the vacuum is pumped by an air pump, so that the air or miscellaneous gas absorbed in tiny pores of the inspected product can be completely removed easily due to high temperature; then, humidifying ozone in a humidifier, pressurizing by using a pressurizing pump, sterilizing the detected product, enhancing the permeability of the pressurized ozone to the fine gaps to achieve the purpose of pore sterilization, humidifying the ozone, and improving the sterilization efficiency; and through the rotation of the sterilizing drum and the matching of the stirring paddle, the inspection products of the piled small particles or flaky substances can be uniformly turned, which is beneficial to the removal of air or miscellaneous gas in tiny pores during vacuumizing and improves the sterilization efficiency of ozone to the pores; finally, the sterilization system is a self-circulation system, ozone gas circulates in the sterilization system, and the circulated ozone gas repeatedly produces ultra-high concentration ozone (the concentration of the ozone is more than 300ppm) through an ozone generator, so that the sterilization efficiency of the ozone is improved to a greater extent, and the requirement of reducing the number of the test product bacteria to be lower than 100cfu/g can be met.
In a word, the utility model can discharge the air or miscellaneous gas in the tiny pores on the surface of the detected product, so that the ozone can enter the tiny pores of the detected product for sterilization; in addition, the ozone circulates in the system, the ultrahigh-concentration ozone is repeatedly produced, the sterilization efficiency is high, the effect is good, and the method is suitable for multi-layer accumulated inspection products such as sheets, particles, powder and the like.
[ description of the drawings ]
The invention will be further described with reference to the following examples with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the vacuum circulating ozone high-efficiency sterilization system of the present invention.
[ detailed description ] embodiments
Referring to fig. 1, the utility model relates to a vacuum circulation ozone high-efficiency sterilization system, which comprises an oxygen barrel 1, an ozone making machine 2, a humidifier 3, a pressure pump 4, a temperature control buffer barrel 5, a sterilization drum 6, an air pump 7 and a dehumidification dryer 8 which are connected in sequence, wherein the dehumidification dryer 8 is also connected with the ozone making machine 2;
a humidity monitoring device 10, specifically a hygrometer, is arranged on a pipeline between the humidifier 3 and the pressure pump 4, a first pressure regulating valve 11 is arranged on a pipeline connecting the temperature control buffer barrel 5 and the sterilization drum 6, and a second pressure regulating valve 12 is arranged on a pipeline connecting the sterilization drum 6 and the air pump 7;
the sterilizing drum 6 is rotatably arranged, a heater 61 is arranged on the outer wall of the sterilizing drum 6, a temperature measuring element 62 is arranged in the sterilizing drum 6, and a first pressure monitoring device 63, specifically a pressure gauge, is arranged at an outlet of the sterilizing drum 6.
The inner wall of the sterilizing rotary drum 6 is fixedly provided with a stirring paddle 64.
Humidifier 3 is a V type humidity control humidification bucket 31, the bottom of V type humidity control humidification bucket 31 links to each other with inlet tube 32, be provided with an inclined ozone admission mouth 33 in the V type humidity control humidification bucket 31, inclined ozone admission mouth 33 passes through the pipeline with ozone machine 2 and links to each other.
A second pressure monitoring device 13, in particular a pressure gauge, is arranged on the pipeline connecting the inclined ozone inlet 33 and the ozone generator 2.
A temperature control condenser 51 is arranged in the temperature control buffer barrel 5, and a drainage pipeline 52 is arranged at the bottom of the temperature control buffer barrel 5.
The dehumidifying dryer 8 includes a dehumidifier 81 and a drying pipe 82, and the suction pump 7 is connected to the ozone generator 2 through the dehumidifier 81 and the drying pipe 82 in this order.
The utility model discloses the effect of each equipment is as follows:
the ozone generator 2 generates new ozone from the pure oxygen gas from the oxygen drum 1 and the dry ozone from the drying tube 82, and humidifies the new ozone by passing through the humidifier 3 for standby.
The humidifier 3 is a V-shaped humidity adjusting humidifying barrel 31, and the ozone gas from the ozone making machine 2 is obliquely blown into a V-shaped groove with a small amount of water through an oblique ozone inlet 33 to form a vortex air flow, so that the humidity of the ozone gas is maintained at 50 +/-5% RH.
A pressure pump 4 for pumping the ozone gas from the humidifier 3, pressurizing (2.0atm), sending to a temperature control buffer barrel 5, removing the residual heat, maintaining the constant temperature at 25 + -2 deg.C, and removing the excessive moisture. (in this case, 2.0atm of ozone relative humidity 90-99% RH).
The sterilizing barrel roll 6 can use a 30L vacuum-resistant 316 stainless steel double-cone-shaped barrel, the inner wall is symmetrically provided with a slat type stirring sheet, namely stirring paddles 64, the rotating speed is 0.2rpm/min, the outer wall is provided with a constant temperature heating sheet, namely a heater 61, the temperature is maintained, so that the moisture is prevented from being condensed on the barrel wall, and the relative humidity of sterilization is maintained at about 95 percent.
The dehumidifier 81 is a 10-liter dehumidifier in which a-4 ℃ temperature-controlled condenser is attached, and ozone is sent to an air drying pipe 82 after being dehumidified. (the ozone gas discharged at high pressure contains little water after decompression, but moisture is still remained in the case that the detected product is treated by spore germination, and the low-temperature condensing device ensures that the air entering the ozone generator is dried).
In the drying pipe 82, ozone is first dehumidified by a dehumidifier 81, and after passing through a drying pipe containing anhydrous sodium sulfate or anhydrous silica gel (the relative humidity is less than 30% RH), the dried ozone gas is introduced into the ozone generator 2 again.
The working principle of the utility model is as follows:
step 1, spore germination, namely, pretreating a detected product (dried garlic slices) in a high-humidity and high-temperature environment with the temperature of 35 +/-5 ℃ and the RH of 90 +/-5% (for 2 hours or more) to activate part of dormant bacteria or germinate spores in the detected product.
And 2, vacuumizing to remove air and moisture in pores, namely pouring 5 kilograms of dried garlic slices to be sterilized into an ozone sterilization rotary drum 6, introducing ozone or air into the sterilization rotary drum 6, heating to 37 +/-2 ℃ in a sealed way by using a heater 61 arranged on the outer wall of the sterilization rotary drum 6 (56 ℃ maximum), rotating at 0.2rpm, stirring for 15 minutes by using a stirring paddle 64, and vacuumizing the ozone heated in the sterilization rotary drum 6 by using an air pump 7 (0.5mmHg) under the continuous rotation and stirring until the temperature in the drum is reduced to 20-25 ℃.
And 3, circularly introducing the micro-humid ozone, namely opening the oxygen barrel 1 and introducing pure oxygen into the ozone making machine 2, adjusting the water level of the generated ozone in the V-shaped humidifying barrel 31 through the humidifier 3, and adjusting the contact area of the air and the water to ensure that the humidity is 50 +/-5% RH. The slightly wet ozone gas is pressurized to 2.0 +/-0.2 atm by a pressurizing pump 4, is introduced into a temperature control buffer barrel 5, is cooled to 25 +/-2 ℃, and is condensed with redundant moisture (90-99% RH). (the volume of the temperature-controlled buffer tank 5 in this embodiment is 30L.)
Step 3.1, pre-sterilization: opening a first pressure regulating valve 11 to slowly fill the sterilizing drum 6(0.2rpm/min) with high-pressure ozone saturated with moisture, rotating the pre-sterilizing drum for 5 minutes, then regulating the first pressure regulating valve 11 and a second pressure regulating valve 12 on two sides of the sterilizing drum 6 to discharge sterilized ozone gas (6L/min) at a gas outlet rate lower than that of gas inlet, and maintaining the pressure of the sterilizing drum 6 at 2.0 +/-0.2 atm; and the discharged ozone gas is passed through a condenser/dehumidifier 81 and a drying pipe 82, and then introduced into an ozone generator 2, thereby circularly generating a higher-concentration ozone gas.
and 5, finishing the circular sterilization (detecting that the ozone concentration is more than 300ppm after the circular sterilization is finished), and adopting a sample to detect the total number of the bacteria.
And 6, when the detection is unqualified, introducing ozone again to repeat the circulating sterilization in the step 4, wherein the residual ozone in the previous group can be used as ozone gas for the other group of sterilization or is discharged to the outdoor atmosphere after being catalyzed by a catalytic tube after being exposed by water.
The ozone gas is maintained to circulate through the sterilization system once every 3 to 10 minutes by controlling the ozone discharge rate of the ozone generator 2 and the exhaust rate of each valve in the system. The rotating speed of the sterilizing rotary drum is 0.1-10 revolutions per minute, and the rotary drum continuously rotates from the beginning to the end of sterilization in the step 2.
Right the utility model discloses the quality control article after the device sterilization carries out the detection of bacterium:
1. growth number detection Medium Plate count medium (PCA) (Standard method Medium) was sterilized at 121 ℃ for 15 minutes, and the final pH was 7.0. + -. 0.2 (15 ml/Plate).
The phosphate buffer diluent is freshly prepared sterile K2HPO4The pH of the aqueous solution is 7.2. The examination of the number of microorganisms was conducted according to the examination method of food microorganisms by Taiwan FDA (reference: examination method of food microorganisms-examination method of the number of microorganisms: FDA Taiwan; https:// www.fda.gov.tw/upload/133/Content).
2. And (3) raw bacteria number detection and sample treatment: samples are collected before and after the test, the sample is cut and mixed evenly, 10g of the sample is taken, 90mL of diluent is added, and the mixture is mixed evenly to be used as 10 times of diluted test solution. Using a sterilized pipette, 1mL of the above 10-fold diluted test solution is pipetted into 9mL of the diluted test solution to prepare a series of 100 to 100,000 diluted test solutions in sequence. Finally, 1mL of each diluted test solution and/or stock solution is aspirated and placed into a culture dish, and each test solution is repeated twice. Another 1mL of the dilution was pipetted into a petri dish as a blank control (duplicate).
3. The colony culture test is carried out by pouring 12-15 mL of plate counting culture medium (PCA) cooled to 45 + -1 ℃ into each culture dish, shaking and mixing, and preparing the self-test solution within 15 minutes. Finally, the medium plate is kept still, and after the medium is solidified, the medium plate is inverted and cultured for 48 +/-2 hours at the temperature of 35 ℃.
4. Calculating the bacteria:
after the culture, two plates with 25-250 colonies were selected for counting, and the number of bacteria was expressed as cfu/g.
Dilution A, number of colonies in each plate Aa, Ab.
B dilution factor, number of colonies in each plate Ba, Bb.
5. Results and discussion the number of live bacteria of the unsterilized garlic flakes was (8. + -. 2) X105The number of bacteria of cfu/g after 2 times of high pressure (2.0 +/-0.2 atm) ozone circulation sterilization is 22 +/-17 cfu/g.log, the reduction value of cfu is 5.9-1.3-4.6, and the dried garlic slices can reach the food specification requirement (P is less than 100cfu/g) after being sterilized by high pressure circulation ozone by using the method of the invention<0.05). Therefore, the high-concentration ozone (the ozone concentration is more than 300ppm) generated by high-pressure ozone circulation has good sterilization benefit. The method is used for sterilization for 2 times or more, the minimum number of the raw bacteria can reach 5cfu/g, the log reduction value is 5.9-0.7-5.2, the efficiency is better, but the economic significance for food treatment is not great.
The utility model is characterized in that the inspected product with bacteria activation or spore germination is placed in a rotary sterilizing rotary drum 6 and heated to 37-56 ℃ by a heater 61, and the air pump 7 is utilized for vacuumizing, so that the air or miscellaneous gas absorbed in tiny pores of the inspected product can be completely removed easily due to high temperature; then, humidifying ozone in a humidifier 3, pressurizing by using a pressurizing pump 4, sterilizing the detected product, enhancing the permeability of the pressurized ozone to the fine gaps to achieve the purpose of pore sterilization, humidifying the ozone, and improving the sterilization efficiency; and, through the rotation of sterilizing the rotary drum 6 and cooperation of the stirring paddle 64, can turn over the quality control article of the piled small granule or flaky material evenly, help the air or miscellaneous gas in the tiny pore space to get rid of and raise the sterilization efficiency of ozone to the pore space while vacuumizing; finally, the sterilization system is a self-circulation system, ozone gas circulates in the sterilization system, and the circulated ozone gas repeatedly produces ultra-high concentration ozone (the concentration of the ozone is more than 300ppm) through an ozone generator, so that the sterilization efficiency of the ozone is improved to a greater extent, and the requirement of reducing the number of the test product bacteria to be lower than 100cfu/g can be met.
In a word, the utility model can discharge the air or miscellaneous gas in the tiny pores on the surface of the detected product, so that the ozone can enter the tiny pores of the detected product for sterilization; in addition, the ozone circulates in the system, the ultrahigh-concentration ozone is repeatedly produced, the sterilization efficiency is high, the effect is good, and the method is suitable for multi-layer accumulated inspection products such as sheets, particles, powder and the like.
It is to be understood that the specific embodiments described are merely illustrative of and not restrictive on the broad invention, and that modifications and variations such as would be obvious to those skilled in the art are intended to be included within the scope of the invention defined by the appended claims.
Claims (6)
1. The utility model provides a high-efficient sterilization system of vacuum cycle ozone which characterized in that: the high-efficiency sterilization system comprises an oxygen barrel, an ozone making machine, a humidifier, a pressure pump, a temperature control buffer barrel, a sterilization drum, an air pump and a dehumidification dryer which are connected in sequence, and the dehumidification dryer is connected with the ozone making machine to form a circulating ozone sterilization loop;
a humidity monitoring device is arranged on a pipeline between the humidifier and the pressure pump, a first pressure regulating valve is arranged on a pipeline connecting the temperature control buffer barrel and the sterilization drum, and a second pressure regulating valve is arranged on a pipeline connecting the sterilization drum and the air pump;
the sterilization drum is rotationally arranged, a heater is arranged on the outer wall of the sterilization drum, a temperature measuring element is arranged in the sterilization drum, and a first pressure monitoring device is arranged at an outlet of the sterilization drum;
the product to be sterilized is placed in the sterilizing drum, and the sterilizing drum can pump out the gas in the sterilizing drum and the product to be sterilized through the air pump; pure oxygen can be changed into humidifying ozone after sequentially passing through the ozone making machine, the humidifier, the pressure pump and the temperature control buffer barrel and is guided into the sterilization drum; the sterilizing drum can rotate to stir and turn over the inspection product, one side of the sterilizing drum is used for introducing ozone, the other side of the sterilizing drum is used for discharging the ozone, and the temperature and the pressure are detected through the temperature measuring element and the first pressure monitoring device to control the ozone environment in the sterilizing drum.
2. The vacuum circulating ozone efficient sterilization system according to claim 1, wherein: and a stirring paddle is fixedly arranged on the inner wall of the sterilization rotary drum.
3. The vacuum circulating ozone efficient sterilization system according to claim 1, wherein: the humidifier is a V-shaped humidity adjusting and humidifying barrel, the bottom of the V-shaped humidity adjusting and humidifying barrel is connected with a water inlet pipe and used for adjusting the water level so as to adjust the humidity, an inclined ozone inlet nozzle is arranged in the V-shaped humidity adjusting and humidifying barrel, and the inclined ozone inlet nozzle is connected with the ozone making machine through a pipeline.
4. The vacuum circulating ozone efficient sterilization system according to claim 3, wherein: and a second pressure monitoring device is arranged on a pipeline connecting the inclined ozone inlet nozzle and the ozone making machine.
5. The vacuum circulating ozone efficient sterilization system according to claim 1, wherein: a temperature control condenser is arranged in the temperature control buffer barrel, and a drainage pipeline is arranged at the bottom of the temperature control buffer barrel.
6. The vacuum circulating ozone efficient sterilization system according to claim 1, wherein: the dehumidifying dryer comprises a dehumidifier and a drying pipe, and the air pump is connected to the ozone making machine sequentially through the dehumidifier and the drying pipe.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021057379A1 (en) * | 2019-09-23 | 2021-04-01 | 黄楷能 | Efficient sterilization method using vacuum circulating ozone |
| CN114534548A (en) * | 2022-03-04 | 2022-05-27 | 余春华 | Fresh chicken manure agitating unit that disinfects |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021057379A1 (en) * | 2019-09-23 | 2021-04-01 | 黄楷能 | Efficient sterilization method using vacuum circulating ozone |
| CN114534548A (en) * | 2022-03-04 | 2022-05-27 | 余春华 | Fresh chicken manure agitating unit that disinfects |
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Effective date of registration: 20210831 Address after: No. 28, Lane 95, Renyi Road, 50 Lin Renyi lane, Rende District, Tainan City, Taiwan, China Patentee after: Huang Kaineng Address before: 361000 No. 64, Yuanting Road, Jimei District, Xiamen City, Fujian Province Patentee before: Xiamen Zhongfang chemical fiber material Co.,Ltd. |
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| CU01 | Correction of utility model |
Correction item: Patentee|Address Correct: Huang Kaineng|No. 28, Lane 95, Renyi Road, 50 Lin Renyi lane, Rende District, Tainan City, Taiwan, China False: Xiamen Zhongfang chemical fiber material Co.,Ltd.|361000 No. 64, Yuanting Road, Jimei District, Xiamen City, Fujian Province Number: 43-01 Page: The title page Volume: 36 Correction item: Patentee|Address False: Xiamen Zhongfang chemical fiber material Co.,Ltd.|361000 No. 64, Yuanting Road, Jimei District, Xiamen City, Fujian Province Number: 43-01 |
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| CU01 | Correction of utility model | ||
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| OR01 | Other related matters |