CN202514154U - Needle array plasma generator under normal pressure and temperature - Google Patents
Needle array plasma generator under normal pressure and temperature Download PDFInfo
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- CN202514154U CN202514154U CN2012200309596U CN201220030959U CN202514154U CN 202514154 U CN202514154 U CN 202514154U CN 2012200309596 U CN2012200309596 U CN 2012200309596U CN 201220030959 U CN201220030959 U CN 201220030959U CN 202514154 U CN202514154 U CN 202514154U
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Abstract
The utility model discloses a needle array plasma generator under normal pressure and temperature. A plasma generation electrode of the device is formed by paired needle array electrode plates which are formed by perpendicularly installing a plurality of metal needles on a metal flat plate according to the geometry array. Nonpolar insulation materials are coated on the metal needles and the metal flat plate. Metal needles of paired needle array positive electrode plates and metal needles of paired needle array negative electrode plates are oppositely assembled in a dislocated and embedded mode. The positive electrode plates and the negative electrode plates are respectively connected with a high-frequency high-voltage power source generator through high-frequency cables. The needle array plasma generator under normal pressure and temperature can be integrally assembled in any closed space to form a practical appliance product. When the needle array plasma generator is used, starting time and stopping time are selected, concentration of plasmas generated by the needle array plasma generator and provided with chemical activity particles can be improved, and residual pesticides and fertilizers on the surfaces of fruits and vegetables and bad harmful gases generated by respiration of the fruits and the vegetables in the storage process can be quickly degraded.
Description
Technical field
The utility model relate to utilize low temperature plasma to agricultural byproducts fresh-keeping with the degrading pesticide residue field, more precisely be a kind of stylus array normal temperature and pressure plasma producing apparatus that is used for preserving fruit and vegetable utilizing and degrading pesticide residue.
Background technology
The traditional preservation technique that adopts both at home and abroad at present all sprays, fumigates with chemical agents such as sulphite, clorox is main, and these class methods exist more serious secondary medicament residue and problem of environmental pollution; And generally adopt freezing, refrigeration means, and be difficult to mould fungus inhibition growth especially, cause the dehydration of vegetables and fruits simultaneously and do not reach fresh-keeping purpose, let alone the remains of pesticide in the degraded fruits and vegetables.
The research that utilizes lower temperature plasma technology to carry out preserving fruit and vegetable utilizing and degraded organic agricultural chemicals is a focus of Recent study.Lower temperature plasma technology is a kind of physics that integrates high energy electron irradiation, free radical, ozone isoreactivity particle, the brand-new preserving fruit and vegetable utilizing and the residual pesticide degradation technique of chemical method.
Its fresh-keeping mechanism is: high energy electron that inspires in the low temperature plasma and gas molecule collision; Produce the various active particle, can remove the metabolin that ethene, ethanol etc. are harmful to storage fruit and vegetable, induce the fruits and vegetables pore to dwindle; Reduce the fruits and vegetables respiratory intensity, increase the time that stores; For fungi, bacterium class disease the stronger effect of preventing and kill off is arranged, virus is also had certain inhibition and killing action.
Its mechanism of degradation is: high energy electron bombarding gas and remains of pesticide molecule that low temperature plasma produces; Through ionization, exciting, dissociating produces secondary electron, ion, free radical activity particle etc.; These active particles again with the remains of pesticide molecular action, its degraded generates micromolecule nontoxic or that toxicity is less the most at last.
Of paramount importancely be, utilizing low temperature plasma to carry out not introducing any pollutant in the process of preserving fruit and vegetable utilizing and degrading pesticide residues, fruits and vegetables after the processing and food are complete Green Products.
Lower temperature plasma technology is used for that vegetables and fruits are fresh-keeping to have caused the great attention of foreign study mechanism with advance degrading pesticide residues, becomes the focus of recent research, but at present owing to be in development, does not still have mature technology to come out.At home, adopt lower temperature plasma technology to carry out the research work of preserving fruit and vegetable utilizing and degrading pesticide residues, do not carry out in a deep going way especially.And the occurring mode of plasma receives limitation of traditional techniques, can not produce at the big capacity of large tracts of land under the normal temperature and pressure conditions, also makes plasma technique can not obtain substantial progress in the application aspect preserving fruit and vegetable utilizing and the degrading pesticide residue.
Summary of the invention
The utility model provides a kind of stylus array normal temperature and pressure plasma producing apparatus that is used for preserving fruit and vegetable utilizing and degrading pesticide residue, and this device can effectively solve the above problems and be not enough.
For realizing above-mentioned purpose; The technical scheme of the utility model is: the using plasma generator carries out fresh-keeping to fruits and vegetables and carries out degrading pesticide residue and handle, and the utility model provides a kind of stylus array normal temperature and pressure plasma producing apparatus that is used for preserving fruit and vegetable utilizing and degrading pesticide residue.
The stylus array normal temperature and pressure plasma producing apparatus formation that the utility model provides includes plasma generating electrodes, the gentle breeze circulatory system, high-frequency and high-voltage power supply, Setup Controller and housing; It is characterized in that: said plasma generating electrodes is made up of paired stylus array pole plate; Said stylus array pole plate is that the number of metal pin is vertically mounted on the metal plate by geometric array; And metal needle and metal plate all apply nonpolar insulating material; Relative and the dislocation embedding assembling of the paired stylus array positive plate and the metal needle of stylus array negative plate, the stylus array positive/negative plate is connected with the high-frequency high-voltage source generator respectively through high frequency cable; The said gentle breeze circulatory system has filters the wind net that looses; Said housing is provided with inlet and outlet, and above-mentioned stylus array positive/negative plate, the gentle breeze circulatory system, high-frequency and high-voltage power supply and Setup Controller all are assembled in this enclosure interior space.
In technique scheme; Said stylus array positive/negative plate is assembled to the nonpolar insulating material connector of the six roots of sensation through three by a pair of stylus array pole plate; Relative and the dislocation embedding assembling of the metal needle of stylus array positive/negative plate all constitutes equilateral triangle or isosceles triangle between any three adjacent metal pins in the stylus array positive/negative plate space.
In technique scheme; Said stylus array positive/negative plate is to be vertically mounted on the metal plate by geometric array by the number of metal pin; The ratio preferred parameter of its vertical pin and pin spacing and transverse pin row and pin column pitch is 1: 2sin60 °, less preferred parameter is 1: 1.
In technique scheme, metal needle is vertically welded on the metal plate or vertically is riveted on the metal polar plate, and metal plate and metal needle integral surface all apply nonpolar insulating material.
In technique scheme, stylus array positive/negative plate integral surface applies nonpolar insulating material, is high voltage withstanding nonpolar insulating material.Above-mentioned high voltage withstanding nonpolar insulating material is the metal oxide ceramic sinter, or quartz glass, or the similar fluorine class ethene that gathers.
In technique scheme, its gentle breeze circulatory system system installs the air strainer that has the even wind structure of wind of loosing additional by the low noise aerofoil fan and constitutes.
In technique scheme, it is 3-6KV that said high-frequency and high-voltage power supply puts on the alternating source voltage that takes place on the plasma pin type array positive/negative plate, and supply frequency is 20-40KHz, and power density is greater than 15mW/cm
3
In technique scheme, the common time control parameter of said Setup Controller is: the operating time of starting shooting first worked 30-45 minute greater than 2 hours afterwards at every turn, shut down 6-8 hour; The time control parameter is fast: the operating time of starting shooting first worked 5-10 minute greater than 15 minutes afterwards at every turn, shut down 30-40 minute.
In technique scheme, this device can be assembled in and constitute practical electric equipment products in any appropriate confined space, also can be placed on such as refrigerator etc. to have in the existing product of confined space.
The technical scheme that the utility model provides can be following to preserving fruit and vegetable utilizing and degrading pesticide residue principle:
When after applying a high-frequency and high-voltage alternating electric field between the pin type array positive and negative electrode, the medium air that flows through therebetween can produce plasma rapidly, and this plasma progressively is full of whole closed container space through the gentle breeze circulatory system; By the high energy charged particles and the air dielectric molecular collision that are dissociated, form various active particle, oxygen radical, ultraviolet ray etc., the comprehensive physicochemical environment that is built into sterilization, fresh-keeping, purification, detoxifies; Active particle can be removed the metabolin that ethene, ethanol etc. are harmful to the vegetables and fruits preservation and freshness, has the fruits and vegetables of inducing pore simultaneously to dwindle, and reduces the fruits and vegetables respiratory intensity, thereby reaches the preserving fruit and vegetable utilizing purpose; Meanwhile; High energy electron bombarding gas and remains of pesticide molecule that low temperature plasma produces; Through ionization, exciting, dissociating produces secondary electron, ion, free radical activity particle etc.; These active particles again with the remains of pesticide molecular action, its degraded generates micromolecule nontoxic or that toxicity is less the most at last, thereby reaches the purpose of clearing up harmful chemical component in residual toxicity and the air.
The utility model has the advantages that, utilizing low temperature plasma to carry out in the process of preserving fruit and vegetable utilizing and deteriorating pesticide residue, need not introduce other harmful chemical substances, so the fruits and vegetables of handling meet environment protection requirement fully.
Description of drawings
Fig. 1 is the stylus array normal temperature and pressure plasma producing apparatus structural principle sketch map that the utility model is used for preserving fruit and vegetable utilizing and degrading pesticide residue.
Fig. 2 is the stylus array normal temperature and pressure plasma generation space positive and negative electrode structural representation that the utility model is used for preserving fruit and vegetable utilizing and degrading pesticide residue.
Fig. 3 is stylus array normal temperature and pressure plasma generation space positive and negative electrode metal needle and the metal plate structure sketch map that the utility model is used for preserving fruit and vegetable utilizing and degrading pesticide residue.
Fig. 4 is that the stylus array normal temperature and pressure plasma producing apparatus that the utility model is used for preserving fruit and vegetable utilizing and degrading pesticide residue is used for actual product or daily utilization structure sketch map.
In the above accompanying drawing, the 1st, plasma generation space unit, the 2nd, have the gentle breeze circulatory system of filtering the wind net that looses, the 3rd, the high-frequency high-voltage source generator; The 4th, Setup Controller, the 5th, two ends have the housing of protective cover inlet and outlet, the 6th, metal polar plate; The 7th, metal needle, the 8th, insulated connecting piece, the 9th, insulation coat; The 10th, practical product shell, the 11st, blank dividing plate, the 12nd, the utility model: the stylus array normal temperature and pressure plasma producing apparatus that is used for preserving fruit and vegetable utilizing and degrading pesticide residue.
Embodiment
Present embodiment stylus array normal temperature and pressure plasma producing apparatus structure is shown in accompanying drawing 1.
The stylus array positive/negative plate constitutes plasma generation space unit 1, has the gentle breeze circulatory system 2 of filtering the wind net that looses, high-frequency high-voltage source generator 3, and Setup Controller 4 and two ends have the housing 5 of protective cover inlet and outlet.
Plasma generation space unit 1 in the present embodiment is that the connector 8 relative dislocation of being made through four polytetrafluoroethylene round bars by two groups of stylus array pole plates assemble; With the accurately adjustment of anchor clamps location, all constitute equilateral triangle during these two groups of pole plate assemblings to guarantee any three metal needle spacings in two groups of anode volume; These two groups of stylus array pole plates constitute the positive and negative polarities of high-frequency and high-voltage discharge, and it carries out electric the connection with the high-frequency high-voltage source generator with the high-frequency and high-voltage cable respectively.(referring to Fig. 2)
Present embodiment is bigger because of required plasma volume, so plasma generation space unit is used with four groups of parallel connections.
Stylus array positive plate in the present embodiment is 25mm by eight groups of 128 length, and diameter is that φ 2mm metal needle 7 is formed, and the stylus array negative plate is 25mm by seven groups of 105 length, and diameter is that φ 2mm metal needle 7 is formed; Metal needle 7 vertical rivetings are contained on the metal polar plate 6 of 120mm * 80mm; The centre-to-centre spacing of its vertical pin and pin is 6mm, and transverse pin row and pin row centre-to-centre spacing are 10.4mm; Stylus array pole plate integral surface behind the riveting dress applies 97% aluminium oxide ceramics sinter 9, and its coating thickness is 0.5mm.(referring to Fig. 2, Fig. 3)
The gentle breeze circulatory system 2 in the present embodiment is to install the air strainer that has the even wind structure of wind of loosing additional by the low noise aerofoil fan to constitute; This gentle breeze circulatory system 2 has the end face of air strainer to connect through the insulation of polypropylene inserts with arbitrary flat end face of plasma generation space unit 1 negotiable air; Blower fan in this gentle breeze circulatory system 2 and 4 electric connections of Setup Controller are provided drive energy and are regulated rotation speed of fan with the air quantity of control through plasma generation space unit 1 by Setup Controller 4.(referring to Fig. 1)
The alternating source voltage that high-frequency high-voltage source generator 3 in the present embodiment puts on the positive/negative plate of plasma generation space unit 1 is 5KV, and supply frequency is 20KHz, and power is 20W.
Setup Controller 4 in the present embodiment adopts the integrated control of single-chip microcomputer, and wherein common time control preferred parameter is: start shooting first 2 hours operating times, worked afterwards 30 minutes at every turn, shut down 6 hours; The time control preferred parameter is fast: start shooting first 15 minutes operating times, worked afterwards 10 minutes at every turn, shut down 35 minutes.
The stylus array normal temperature and pressure plasma producing apparatus 12 of preserving fruit and vegetable utilizing in the present embodiment and degrading pesticide residue can be assembled in and constitute practical electric equipment products 10 in any appropriate confined space, can install the blank dividing plate 11 of multilayer in this confined space additional; Also can be placed on such as refrigerator etc. and have in the existing product of confined space.(referring to Fig. 4)
With the present embodiment device several vegetables and fruits and food are carried out handling in 30 minutes, then with control group respectively vacuum packaging be positioned in 25 ℃ of environment and uninterruptedly observe corresponding prolongations of its fresh keeping time 10-15 times.
To carrying out respectively handling in 15-20 minute with the glass surface organophosphorus pesticide in the water body, the result shows that the chemical residual degradation rate is respectively: flolimat 99-100%, parathion-methyl 98-99%, DDVP 95-98% with the present embodiment device.And catabolite is molecule nontoxic or that toxicity is less.
Carry out handling in 12 minutes to implanting with the present embodiment device, all be killed through detecting the bacterium of handling on the carrier, and the bacterium of control group is 10 the 5-6 power order of magnitude through Escherichia coli, Aspergillus flavus, the bacillus stearothermophilus carrier of cultivating.
Claims (10)
1. stylus array normal temperature and pressure plasma producing apparatus; This device formation includes plasma generating electrodes, the gentle breeze circulatory system, high-frequency and high-voltage power supply, Setup Controller and housing; It is characterized in that: said plasma generating electrodes is made up of paired stylus array pole plate; Said stylus array pole plate is that the number of metal pin is vertically mounted on the metal plate by geometric array; And metal needle and metal plate all apply nonpolar insulating material, the relative and dislocation embedding assembling of the paired stylus array positive plate and the metal needle of stylus array negative plate, and the stylus array positive/negative plate is connected with the high-frequency high-voltage source generator respectively through high frequency cable; The said gentle breeze circulatory system has filters the wind net that looses; Said housing is provided with inlet and outlet, and above-mentioned stylus array positive/negative plate, the gentle breeze circulatory system, high-frequency and high-voltage power supply and Setup Controller all are assembled in this enclosure interior space.
2. stylus array normal temperature and pressure plasma producing apparatus as claimed in claim 1; It is characterized in that: said stylus array positive/negative plate is assembled to the nonpolar insulating material connector of the six roots of sensation through three by a pair of stylus array pole plate; Relative and the dislocation embedding assembling of the metal needle of stylus array positive/negative plate all constitutes equilateral triangle or isosceles triangle between any three adjacent metal pins in the stylus array positive/negative plate space.
3. according to claim 1 or claim 2 stylus array normal temperature and pressure plasma producing apparatus; It is characterized in that: said stylus array positive/negative plate is to be vertically mounted on the metal plate by geometric array by the number of metal pin; The ratio preferred parameter of its vertical pin and pin spacing and transverse pin row and pin column pitch is 1: 2sin60 °, less preferred parameter is 1: 1.
4. according to claim 1 or claim 2 stylus array normal temperature and pressure plasma producing apparatus; It is characterized in that: metal needle is vertically welded on the metal plate or vertically is riveted on the metal polar plate, and metal plate and metal needle integral surface all apply nonpolar insulating material.
5. stylus array normal temperature and pressure plasma producing apparatus as claimed in claim 4 is characterized in that: stylus array positive/negative plate integral surface applies nonpolar insulating material, is high voltage withstanding nonpolar insulating material.
6. stylus array normal temperature and pressure plasma producing apparatus as claimed in claim 5 is characterized in that: said high voltage withstanding nonpolar insulating material is the metal oxide ceramic sinter, or quartz glass, or gathers fluorine class ethene.
7. stylus array normal temperature and pressure plasma producing apparatus as claimed in claim 1 is characterized in that: its gentle breeze circulatory system system installs the air strainer that has the even wind structure of wind of loosing additional by the low noise aerofoil fan and constitutes.
8. stylus array normal temperature and pressure plasma producing apparatus as claimed in claim 1; It is characterized in that: the alternating source voltage that said high-frequency and high-voltage power supply puts on the plasma pin type array positive/negative plate is 3-6KV; Supply frequency is 20-40KHz, and power density is greater than 15mW/cm
3
9. stylus array normal temperature and pressure plasma producing apparatus as claimed in claim 1 is characterized in that: the common time control parameter of said Setup Controller is: the operating time of starting shooting first worked 30-45 minute greater than 2 hours afterwards at every turn, shut down 6-8 hour; The time control parameter is fast: the operating time of starting shooting first worked 5-10 minute greater than 15 minutes afterwards at every turn, shut down 30-40 minute.
10. stylus array normal temperature and pressure plasma producing apparatus as claimed in claim 1; It is characterized in that: this device can be assembled in and constitute practical electric equipment products in any appropriate confined space, also can be placed on such as refrigerator etc. to have in the existing product of confined space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200309596U CN202514154U (en) | 2012-01-31 | 2012-01-31 | Needle array plasma generator under normal pressure and temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200309596U CN202514154U (en) | 2012-01-31 | 2012-01-31 | Needle array plasma generator under normal pressure and temperature |
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| Publication Number | Publication Date |
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| CN202514154U true CN202514154U (en) | 2012-10-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200309596U Withdrawn - After Issue CN202514154U (en) | 2012-01-31 | 2012-01-31 | Needle array plasma generator under normal pressure and temperature |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448240A (en) * | 2012-01-31 | 2012-05-09 | 南京翰纳科技有限公司 | Needle-type array normal temperature and pressure plasma generation device and use method thereof |
| CN103179771A (en) * | 2013-02-26 | 2013-06-26 | 大连民族学院 | Atmospheric low-temperature plasma generating device and application thereof |
| CN103458601A (en) * | 2013-09-12 | 2013-12-18 | 大连民族学院 | Plasma generation device |
| CN105495067A (en) * | 2014-09-25 | 2016-04-20 | 赵军 | Method for treatment of pesticide residue on dried Chinese wolfberry surfaces |
| CN107911933A (en) * | 2017-09-25 | 2018-04-13 | 杨家华 | Plasma energy generating apparatus |
-
2012
- 2012-01-31 CN CN2012200309596U patent/CN202514154U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102448240A (en) * | 2012-01-31 | 2012-05-09 | 南京翰纳科技有限公司 | Needle-type array normal temperature and pressure plasma generation device and use method thereof |
| CN103179771A (en) * | 2013-02-26 | 2013-06-26 | 大连民族学院 | Atmospheric low-temperature plasma generating device and application thereof |
| CN103458601A (en) * | 2013-09-12 | 2013-12-18 | 大连民族学院 | Plasma generation device |
| CN105495067A (en) * | 2014-09-25 | 2016-04-20 | 赵军 | Method for treatment of pesticide residue on dried Chinese wolfberry surfaces |
| CN107911933A (en) * | 2017-09-25 | 2018-04-13 | 杨家华 | Plasma energy generating apparatus |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121031 Effective date of abandoning: 20130515 |
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| RGAV | Abandon patent right to avoid regrant |