CN103653200B - Cold plasma pesticide degradation instrument - Google Patents

Abstract

The invention discloses a cold plasma pesticide degradation instrument which comprises a degradation box and a power supply, wherein a discharge module in the degradation box can generate plasma, and the cold plasma covers the surface of an article to realize the degradation effect on pesticides on the surfaces of fruits and vegetables. The degradation instrument has good pesticide degradation effect, is simple to operate, does not produce toxic compounds, and is safe and reliable. Can be used as household melon, fruit and vegetable pesticide removing equipment.

Description

A cold plasma pesticide degradation instrument

technical field

The invention relates to disinfection equipment, in particular to a cold plasma pesticide degradation instrument.

Background technique

At present, pesticides have been widely used in the cultivation of fruits, vegetables and other crops. Spraying pesticides can effectively reduce pests and diseases and increase the yield of crops. However, pesticides are extremely harmful to the human body and the fruits and vegetables with pesticides are very troublesome and difficult to clean. thorough. Most of the pesticides are organic substances, the traditional degradation methods include photolysis, hydrolysis, catalytic ozonation, ultrasonic irradiation, ionizing radiation degradation and so on. However, the efficiency of these methods for removing and degrading pesticides is very limited, and toxic compounds will be produced incidentally.

Studies have shown that the plasma generated by the discharge not only contains ozone, hydroxide ions, etc., but also a large number of high-energy electrons, which all contribute to the degradation of organic compounds. Most of the pesticides are organic compounds, and the use of plasma to degrade pesticides is a practical and effective way.

There is currently no device that uses plasma to degrade pesticides.

Contents of the invention

The purpose of the present invention is to provide a cold plasma pesticide degrader, which can improve the efficiency of removing degraded pesticides and avoid the accompanying toxic compounds.

A kind of cold plasma pesticide degradation instrument disclosed by the present invention includes a degradation box and a power supply, and a box door is opened on one side of the degradation box, and a discharge module is arranged in the degradation box, and the discharge module is composed of an anode, a cathode, and an anode , and a dielectric layer between the cathodes; a control display module is also arranged outside the degradation box, and the anode, cathode, power supply and control display module are connected by wires. The anode is a copper sheet array composed of several copper sheets, and the cathode is a metal mesh.

(Add to paragraph 0006)

As a further improvement of the above technical solution, there are several discharge modules, which are respectively installed relatively close to the inner wall of the degradation box.

As a further improvement of the above technical solution, there are two discharge modules, which are respectively installed at positions close to the inner walls on both sides adjacent to the box door. There are discharge modules on the opposite sides of the degradation box, and the discharge efficiency is greatly increased.

As a further improvement of the above technical solution, the copper sheet array, the dielectric layer and the metal mesh are sequentially arranged from the side wall inward.

As another improvement of the above technical solution, a heat dissipation module is further provided between the discharge module and the outer wall for heat dissipation of the copper sheet.

As another improvement of the above technical solution, a rotatable tray is also arranged on the inner bottom surface of the degradation box.

As another improvement of the above technical solution, the dielectric layer is polytetrafluoroethylene.

Compared with traditional pesticide degradation equipment, the cold plasma pesticide degradation instrument disclosed by the present invention has good effect on pesticide degradation, simple operation, no toxic compounds produced incidentally, and is safe and reliable. It can be used as household pesticide removal equipment for fruits and vegetables.

Description of drawings

Fig. 1 is the front view of the structure of the cold plasma pesticide degradation instrument;

Fig. 2 is the left view of the structure of the cold plasma pesticide degradation instrument;

Fig. 3 is a top view of the structure of the cold plasma pesticide degradation instrument.

detailed description

Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of cold plasma pesticide degradation instrument disclosed by the present invention includes a degradation box and a power supply 7, and a door 8 is opened on one side of the degradation box, and two discharge modules are respectively arranged. Relatively installed near the inner walls on both sides adjacent to the box door 8, a heat dissipation module 4 is also arranged between the discharge module and the outer wall for heat dissipation of the copper sheet. The discharge module is composed of a copper sheet array 3, a metal mesh 1, and a polytetrafluoroethylene dielectric layer 2 sandwiched between the copper sheet array 3 and the metal mesh 1, which are sequentially arranged from the side wall inward. Multiple copper sheets Composed of arrays, the discharge efficiency is high. A control display module 5 is also arranged outside the degradation box, and the control display module 5 mainly includes a switch and a timer, which can control the switch and processing time of the equipment. The copper sheet array 3, the metal mesh 1, the power supply 7 and the control display module 5 are connected by wires. A rotatable tray 6 is also arranged on the inner bottom surface of the degradation box, and the articles to be processed are placed on the rotatable tray 6 . The entire degradation box is wrapped by a layer of insulation.

Household 220V AC is used as input, and after boosting and other processing, high-voltage electricity with a voltage of about 10KV and a frequency of about 10KHz is transmitted to the degradation box by insulated wires, and the power supply contains a protection circuit, which can automatically when the current is too large. Cut off the power. The copper sheet array 3 of the discharge module is used as the anode, the metal mesh 1 is used as the cathode, and the middle is the polytetrafluoroethylene dielectric layer 2. The high voltage is discharged through the anode to the cathode by dielectric barrier (DBD), and the cold plasma is generated near the metal mesh 1 . The power generated by the plasma can be adjusted by controlling the display module 5 . Since the discharge modules are relatively placed and there is a rotatable tray 6, the cold plasma can cover the surface of the article to realize the degradation of pesticides on the surface of fruits and vegetables.

There are many specific application approaches of the present invention, and the above description is only a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, some improvements can also be made without departing from the principles of the present invention. Improvements should also be regarded as the protection scope of the present invention.

Claims (7)

1. A cold plasma pesticide degradation instrument, characterized in that: it includes a degradation box and a power supply (7), a box door (8) is opened on one side of the degradation box, and a discharge module is arranged in the degradation box, and the discharge module consists of An anode, a cathode, and a dielectric layer (2) sandwiched between the anode and the cathode; a control display module (5) is also provided outside the degradation box, and the anode, cathode, power supply (7) and control display module (5) pass through The wires are connected; the anode is a copper array (3) composed of several copper sheets, and the cathode is a metal mesh (1). 2. The cold plasma pesticide degradation instrument according to claim 1, characterized in that: there are several discharge modules, which are respectively installed near the inner wall of the degradation box. 3. The cold plasma pesticide degradation instrument according to claim 2, characterized in that there are two discharge modules, which are respectively installed relatively close to the two inner walls adjacent to the box door (8). 4. The cold plasma pesticide degradation instrument according to claim 2 or 3, characterized in that: the copper sheet array (3), the dielectric layer (2) and the metal mesh (1) are sequentially arranged from the side wall inward. 5. The cold plasma pesticide degradation instrument according to claim 2 or 3, characterized in that: a heat dissipation module (4) is also arranged between the discharge module and the outer wall. 6. The cold plasma pesticide degradation instrument according to any one of claims 1, 2 or 3, characterized in that: a rotatable tray (6) is also arranged on the inner bottom surface of the degradation box. 7. The cold plasma pesticide degradation instrument according to any one of claims 1, 2 or 3, characterized in that: the dielectric layer (2) is polytetrafluoroethylene.