CN201342108Y - Ultraviolet-ozone combined sterilizing device - Google Patents
Ultraviolet-ozone combined sterilizing device Download PDFInfo
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- CN201342108Y CN201342108Y CNU2008202336144U CN200820233614U CN201342108Y CN 201342108 Y CN201342108 Y CN 201342108Y CN U2008202336144 U CNU2008202336144 U CN U2008202336144U CN 200820233614 U CN200820233614 U CN 200820233614U CN 201342108 Y CN201342108 Y CN 201342108Y
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- ultraviolet
- ozone
- disinfection device
- ozone combined
- venturi
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Abstract
The utility model relates to an ultraviolet-ozone combined sterilizing device for nutrient solution, belonging to the field of sterilizing devices. A nutrient solution tank, a water pump, a filter and a water meter are connected in series through a pipeline, connected with a Venturi ejector or a plurality of parallel Venturi ejectors in series and then connected with a solution storage tank through an ultraviolet sterilizer. The outlet pipeline of an ozone generator is connected with the Venturi ejector or the plurality of parallel Venturi ejectors through an electromagnetic valve. The utility model has the advantages that the nutrient solution is filtered through the filter and sterilized by the ozone and the ultraviolet, the disinfection effect is greatly improved and the quantity of microorganisms in the nutrient solution is minimized; the cost of the complete device is low, the energy consumption is low and the expense is saved.
Description
Technical field
This utility model belongs to field of disinfecting equipment, particularly a kind of ultraviolet and ozone combined disinfection device that is used for nutritional solution.
Background technology
Soilless culture is meant without natural soil and comes method of growing plants with nutritional solution.Whether soilless culture system is collected and is reused according to nutritional solution, is divided into open (open system) and closed (closed system) two big classes.In open soilless culture system, nutritional solution does not recycle, and nutritional solution unnecessary promptly being discharged in the environment after crop absorbs will cause certain pollution to environment.In closed soilless culture system, nutritional solution recycles, and water saving economizes fertile, and has reduced the pollution to environment.Therefore, soilless culture development both domestic and external progressively presents by open trend to closed transformation.
But because recycling of nutritional solution increased the probability of nutritional solution contact cause of disease.Compare the easier generation soil-borne disease of closed system with open system, as cucumber fusarium axysporum, Cruciferae soft rot and tomato wilt etc.Its occurrence characteristic is that propagation is very fast, in case generation whole system plant is all susceptible, therefore harm is serious, can cause tremendous economic loss.In order to address the above problem, the recirculating nutrient solution method for disinfection of seeking a kind of economical and efficient just seems particularly urgent.
Existing sterilization method mainly contains chemical disinfection and physical sterilization two big classes.
1, chemical disinfection
Chemical disinfection is meant with chemicals and acts on microbial body, makes its protein denaturation, loses normal function and death.At present commonly used have chlorine-containing disinfectant, oxidative disinfectant, iodine class disinfectant, aldehyde disinfectant, heterocyclic gaseous decontaminant, phenols disinfectant, alcohol disinfectant, a quaternary ammonium disinfectant etc.
Advantages such as it is efficient, quick, easy to operate, applied widely and good in economic efficiency that chemical method has; But chemical method can cause the person poultry poisoning, make shortcomings such as harmful organism develops immunity to drugs, contaminated environment.Therefore use and carry out soilless culture through chemical method disinfectant nutritional solution and produce vegetable, fruit etc., cause drug residue and accumulation easilier, the people is poisoned.
2, physical method, mainly comprise heat sterilization, oxidation sterilizing, ultraviolet disinfection, filter-sterilized etc.
(1) heat sterilization
The elevated temperature heat sterilization is to be applied to the nutritional solution disinfectant method the earliest, and its principle is to utilize high temperature to make protein denaturation, loses biological function, thus pathogenic microbe killing.
But heat sterilization is higher to equipment requirements, and manufacturing cost is big.Need a large amount of energy in the running, as electric energy, coal, natural gas, liquid fuel etc., it is all very high to use which kind of energy to move required cost, and economic effect is poor.
(2) ozonization
The principle of ozonization is to utilize the strong oxidizing property and the reducing substances generation redox reaction of ozone, decomposes the pathogenic microorganism in the nutritional solution.Its basic process is the O that ozonator produces
3Enter Liqiud-gas mixing device by airway, ozone mixes the germ-resistant effect of playing that contacts with nutritional solution.
Ozone produces active very strong antozone and hydroxyl in solution, antozone not only can decompose microorganism can also with other reducing substances generation redox reaction in the nutritional solution, so the Organic substance that contains in the nutritional solution can consume ozone and reduces bactericidal effect; Ozone can destroy the chelate bonds of the reproducibility chelated iron in the nutritional solution in addition, makes ferrum insoluble and the plant iron deficiency takes place.
(3) disinfection by ultraviolet light
The ultraviolet-sterilization principle is by the irradiation of ultraviolet to microorganism, to destroy the structure of nucleoprotein in its body or DNA, makes its dead immediately or forfeiture fertility.Ultraviolet with optimum germicidal effect is UV-C, and wavelength is at 200～280nm, and wavelength is that the ultraviolet sterilization effect of 254nm is best, because DNA is the strongest to the ultra-violet absorption of 254nm.
The effect of disinfection by ultraviolet light is subjected to the influence of transmission factor in the solution (transmission factor), is hidden in particle pathogenic bacteria behind and will be difficult to be killed.
There is defective separately in single method, therefore utilizes ozone and ultraviolet to handle nutritional solution jointly and can maximize favourable factors and minimize unfavourable ones, bring into play better bactericidal effect.
Summary of the invention
This utility model at exist in the above-mentioned existing method environmental pollution big, to problems such as people and animals are harmful, operating cost is high and weak effect efficient is low, provide a kind of new, can be applicable to nutritional solution disinfectant ultraviolet and ozone combined disinfection device in the closed soilless culture system, it is characterized in that, nutrition liquid pool 1, water pump 2, filter 3 and water meter 4 are connected by pipeline, connect with the one or more venturi ejectors 5 that are connected in parallel then, insert liquid storage tank 9 by ultraviolet sterilizer 8 again; The outlet pipe of ozonator 7 is connected with the one or more venturi ejectors 5 that are connected in parallel respectively by electromagnetic valve 6, and wherein the trunnion of venturi ejector 5 connects suction nozzle, and communicates by the escape pipe of suction nozzle with ozonized gas generator 7.
Described water pump 2 is the corrosion-resistant self priming pump of rustless steel, and flow is 15～30m
3/ h, and be connected with the two ends pipeline by ring flange.
Described filter 3 is a screen mesh type, and mesh is 100～150.
The angle of throat of described venturi ejector 5 tapered portion is 21～22 °, and the extended corner of flaring part is 6～8 °.
The gas production of described ozonator 7 is 30～70L/min.
The shell of described ultraviolet ray disinfector 8 is that rustless steel is cylindrical, its inside is provided with quartz ampoule, and ultraviolet lamp tube promptly is placed in the quartz ampoule, forms the sterilisation housing of an annular between shell and quartz ampoule, uviol lamp power is 90W～150W, and the flow of nutritional solution is 8～10m
3/ h, the import and export of ultraviolet ray disinfector 8 adopt the internal thread interface to link to each other with pipeline.
This utility model is compared with traditional nutritional solution decontaminating apparatus, has following advantage:
1, before nutritional solution enters disinfector, make it earlier through filter.Reduce the content of reducing substances and opaque impurity in the nutritional solution, can improve bactericidal effect greatly, reduced the consumption of electric energy indirectly.
2, adopt the venturi ejector in nutritional solution, to charge into ozone, no longer need other Special Equipment, reduced manufacturing cost, saved operating cost.
3, sterilization is more thorough.Influenced by various factors through the nutritional solution of ozonateur differs surely by thorough disinfection.Therefore, nutritional solution enters ultraviolet sterilizer again, sterilizes under ultraviolet further irradiation, can further kill residual pathogenic bacteria.
4, ozone is dissolved in the nutritional solution, and overflowing fully needs certain hour, can bring into play lasting bactericidal action before overflowing fully.
5, the combination of two kinds of methods has improved bactericidal effect, makes that micro organism quantity drops to lower in the nutritional solution.
6, combined disinfection method can increase the nutritional solution flow velocity under identical sterilization requires, and improves germicidal efficiency, improves the nutritional solution treating capacity.
Description of drawings
Fig. 1 is an apparatus structure sketch map described in the utility model.
Number in the figure:
1-nutrition liquid pool; The 2-water pump; The 3-filter; The 4-water meter; 5-venturi ejector; The 6-electromagnetic valve;
The 7-ozonator; The 8-ultraviolet sterilizer; The 9-liquid storage tank.
The specific embodiment
This utility model provides a kind of ultraviolet and ozone combined disinfection device, and the present invention will be further described below in conjunction with the drawings and specific embodiments.
Fig. 1 is an apparatus structure sketch map described in the utility model.Nutrition liquid pool 1, corrosion-resistant self-priming water pump 2, the 120 mesh sieve well strainers 3 of rustless steel and water meter 4 are connected by pipeline; Connect with being connected in parallel on 4 venturi ejectors 5 then, insert liquid storage tank 9 by ultraviolet sterilizer 8 again; The outlet pipe of ozonator 7 is connected with the one or more venturi ejectors 5 that are connected in parallel respectively by electromagnetic valve 6, wherein, the trunnion of venturi ejector 5 connects suction nozzle, and communicate by the escape pipe of suction nozzle with ozonized gas generator 7, the angle of throat of venturi ejector 5 tapered portion is 21 °, the extended corner of flaring part is 8 °, the shell of ultraviolet ray disinfector 8 is that rustless steel is cylindrical, its inside is provided with quartz ampoule, ultraviolet lamp tube promptly is placed in the quartz ampoule, form the sterilisation housing of an annular between shell and quartz ampoule, the import and export of ultraviolet ray disinfector 8 adopt the internal thread interface to link to each other with pipeline.
Nutritional solution to be sterilized in the nutrition liquid pool 1 by water pump 2 with 20m
3The flow suction line of/h, at first pass through wherein impurity of filter 3 eliminations, nutritional solution enters Venturi tube 5 then, liquid at first enters the convergent portion of Venturi tube 5, because the liquid flowing speed of contraction gradually of caliber is accelerated gradually, reach maximum to trunnion place flow velocity, form a subatmospheric negative pressuren zone at this; The gas production of ozonator 7 is 45L/min, and the ozone in Venturi tube 5 suction nozzles is inhaled into pipeline under the atmospheric pressure effect, mix with nutritional solution, and ozone fully is dissolved in the nutritional solution, and beginning oxidation pathogen wherein.The nutritional solution that flows out Venturi tube 5 enters ultraviolet sterilizer 8 subsequently, and the flow of nutritional solution is 8m
3/ h is subjected to the ultra violet lamp of 4 30W power in the space that nutritional solution forms between quartz ampoule and shell, the nutritional solution of having sneaked into ozone carries out disinfection under ultraviolet radiation.Nutritional solution after terminal disinfection is handled is flowed out by the ultraviolet sterilizer liquid outlet, enters liquid storage tank.
Above-described embodiment is the more preferably specific embodiment of the present invention, and those skilled in the art can make various modifications within the scope of the appended claims.
Claims (6)
1. ultraviolet and ozone combined disinfection device, it is characterized in that, nutrition liquid pool (1), water pump (2), filter (3) and water meter (4) are connected by pipeline, connect with the one or more venturi ejectors (5) that are connected in parallel then, insert liquid storage tank (9) by ultraviolet sterilizer (8) again; The outlet pipe of ozonator (7) is connected with the one or more venturi ejectors (5) that are connected in parallel respectively by electromagnetic valve (6), wherein the trunnion of venturi ejector (5) connects suction nozzle, and communicates by the escape pipe of suction nozzle with ozonized gas generator (7).
2. a kind of ultraviolet and ozone combined disinfection device according to claim 1 is characterized in that, described water pump (2) is the corrosion-resistant self priming pump of rustless steel, and flow is 15～30m
3/ h, and be connected with the two ends pipeline by ring flange.
3. a kind of ultraviolet and ozone combined disinfection device according to claim 1 is characterized in that described filter (3) is a screen mesh type, and mesh is 100～150.
4. a kind of ultraviolet and ozone combined disinfection device according to claim 1 is characterized in that, the angle of throat of described venturi ejector (5) tapered portion is 21～22 °, and the extended corner of flaring part is 6～8 °.
5. a kind of ultraviolet and ozone combined disinfection device according to claim 1 is characterized in that the gas production of described ozonator (7) is 30～70L/min.
6. a kind of ultraviolet and ozone combined disinfection device according to claim 1, it is characterized in that, the shell of described ultraviolet ray disinfector (8) is that rustless steel is cylindrical, its inside is provided with quartz ampoule, ultraviolet lamp tube promptly is placed in the quartz ampoule, form the sterilisation housing of an annular between shell and quartz ampoule, uviol lamp power is 90W～150W, and the flow of nutritional solution is 8～10m
3/ h, the import and export of ultraviolet ray disinfector (8) adopt the internal thread interface to link to each other with pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202336144U CN201342108Y (en) | 2008-12-18 | 2008-12-18 | Ultraviolet-ozone combined sterilizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202336144U CN201342108Y (en) | 2008-12-18 | 2008-12-18 | Ultraviolet-ozone combined sterilizing device |
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| Publication Number | Publication Date |
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| CN201342108Y true CN201342108Y (en) | 2009-11-11 |
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| CNU2008202336144U Expired - Fee Related CN201342108Y (en) | 2008-12-18 | 2008-12-18 | Ultraviolet-ozone combined sterilizing device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659275A (en) * | 2012-05-21 | 2012-09-12 | 杭州美亚水处理科技有限公司 | Method and device for keeping drinking water in water storage tank fresh |
| CN103386140A (en) * | 2013-07-25 | 2013-11-13 | 江苏大学 | Microwave-based nutrient solution disinfection method |
| CN103444618A (en) * | 2013-09-26 | 2013-12-18 | 金贝尔(福建)水环境工程有限公司 | Ozone adding device and method for removing suspended particles and degrading organic matter |
| CN115259495A (en) * | 2022-07-28 | 2022-11-01 | 中国航天汽车有限责任公司 | Nutrient solution blending and purifying treatment device and method |
-
2008
- 2008-12-18 CN CNU2008202336144U patent/CN201342108Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102659275A (en) * | 2012-05-21 | 2012-09-12 | 杭州美亚水处理科技有限公司 | Method and device for keeping drinking water in water storage tank fresh |
| CN103386140A (en) * | 2013-07-25 | 2013-11-13 | 江苏大学 | Microwave-based nutrient solution disinfection method |
| CN103444618A (en) * | 2013-09-26 | 2013-12-18 | 金贝尔(福建)水环境工程有限公司 | Ozone adding device and method for removing suspended particles and degrading organic matter |
| CN103444618B (en) * | 2013-09-26 | 2015-08-12 | 金贝尔(福建)水环境工程有限公司 | A kind ofly remove suspended particulate, the ozone adding set of degradation of organic substances and method thereof |
| CN115259495A (en) * | 2022-07-28 | 2022-11-01 | 中国航天汽车有限责任公司 | Nutrient solution blending and purifying treatment device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Zhongnong Futong Gardening Co.,Ltd. Assignor: China Agricultural University Contract record no.: 2010990000354 Denomination of utility model: Ultraviolet-ozone combined sterilizing device Granted publication date: 20091111 License type: Exclusive License Record date: 20100607 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20111218 |