阅读说明：本技术 一种太阳能脉冲电源驱动磁场耦合高压电场干燥装置 (Solar pulse power supply driving magnetic field coupling high-voltage electric field drying device ) 是由 刘峰 陈洁 赵昱雷 董媛 方志 于 2021-07-28 设计创作，主要内容包括：本发明公开一种太阳能脉冲电源驱动磁场耦合高压电场干燥装置,包括供电模块、微机控制模块、直流升压模块、脉冲发生模块、过流保护模块、针-网电极干燥模块和磁场发生模块；供电模块连接微机控制模块,微机控制模块连接直流升压模块,直流升压模块连接脉冲发生模块,脉冲发生模块连接过流保护模块过流保护模块连接针-网电极干燥模块,磁场发生模块连接针-网电极干燥模块；本发明通过电场畸变对电晕放电过程中电子崩流柱的控制,增大了离子风风速,提高了能量转化效率；磁场辅助干燥,带电粒子的运动轨迹发生变化,自由电子的平均自由行程增大,离子风速急剧增大从而缩短干燥时间。(The invention discloses a solar pulse power supply driving magnetic field coupling high-voltage electric field drying device which comprises a power supply module, a microcomputer control module, a direct current boosting module, a pulse generation module, an overcurrent protection module, a needle-net electrode drying module and a magnetic field generation module; the power supply module is connected with the microcomputer control module, the microcomputer control module is connected with the direct current boosting module, the direct current boosting module is connected with the pulse generation module, the pulse generation module is connected with the overcurrent protection module, the overcurrent protection module is connected with the needle-net electrode drying module, and the magnetic field generation module is connected with the needle-net electrode drying module; according to the invention, the electron collapse column in the corona discharge process is controlled through electric field distortion, so that the ionic wind speed is increased, and the energy conversion efficiency is improved; the drying is assisted by the magnetic field, the motion trail of the charged particles is changed, the mean free path of free electrons is increased, the ion wind speed is increased rapidly, and the drying time is shortened.)

1. The utility model provides a solar energy pulse power supply drive magnetic field coupling high-voltage electric field drying device which characterized in that: the device comprises a power supply module, a microcomputer control module, a direct current boosting module, a pulse generation module, an overcurrent protection module, a needle-mesh electrode drying module and a magnetic field generation module;

the power supply module is connected to the microcomputer control module, the microcomputer control module is connected to the direct current boosting module, the direct current boosting module is connected to the pulse generation module, the pulse generation module is connected to the overcurrent protection module, the overcurrent protection module is connected to the needle-mesh electrode drying module, and the magnetic field generation module is connected to the needle-mesh electrode drying module; the power supply module comprises a solar module and urban power;

the needle-mesh electrode drying module and the magnetic field generating module comprise needle electrodes and mesh electrodes, and the pulse generating module is connected with the needle electrodes.

2. The solar pulse power supply driving magnetic field coupling high-voltage electric field drying device according to claim 1, characterized in that: the power supply module further comprises a storage battery, and the solar module is connected to the storage battery.

3. The solar pulse power supply driving magnetic field coupling high-voltage electric field drying device according to claim 1, characterized in that: the needle electrode include six stainless steel needles of parallel arrangement, the interval of two adjacent stainless steel needles is the same, stainless steel needle perpendicular to aluminum plate, aluminum plate level is placed, needle electrode perpendicular to net electrode, and the needle point of stainless steel needle is in the coplanar.

4. The solar pulse power supply driving magnetic field coupling high-voltage electric field drying device according to claim 3, characterized in that: six stainless steel needles are distributed at the vertex and the side length midpoint of a regular triangle taking the circle center of the aluminum plate as the center.

5. The solar pulse power supply driving magnetic field coupling high-voltage electric field drying device according to claim 4, characterized in that: the stainless steel needle is wrapped by an insulating rubber sleeve, and the insulating rubber sleeve insulates the stainless steel needle from the aluminum plate.

6. The solar pulse power supply-driven magnetic field coupling high-voltage electric field drying device according to any one of claims 1 to 5, characterized in that: the device comprises a box body, wherein an inverted U-shaped support is fixed at the middle part of the upper part of the box body, a connecting rod is arranged by penetrating through the inverted U-shaped support and the box body, a spiral micrometer is arranged above the connecting rod, a needle electrode is arranged below the connecting rod, and a mesh electrode is arranged below the needle electrode and is vertical to the needle electrode.

7. The solar pulse power supply driving magnetic field coupling high-voltage electric field drying device according to claim 6, characterized in that: the needle-mesh electrode drying module further comprises a heating module and a temperature control module, and the heating module and the temperature control module are arranged on the side face of the box body.

8. The solar pulse power supply driving magnetic field coupling high-voltage electric field drying device according to claim 6, characterized in that: the side of the box body is also provided with a power supply, and the power supply comprises a power supply module, a microcomputer control module, a direct current boosting module, a pulse generation module and an overcurrent protection module.

9. The solar pulse power supply driving magnetic field coupling high-voltage electric field drying device according to claim 6, characterized in that: the magnetic field generating module is arranged below the box body and comprises two identical semi-ring-shaped permanent magnet combinations, and the magnetic field generating module is arranged around the needle electrode and the mesh electrode.

Technical Field

The invention belongs to the technical field of drying, and particularly relates to a magnetic field coupling high-voltage electric field drying device based on solar pulse power supply driving.

Background

With the development of society, the requirements of people on food, medicine and biological products are gradually increased, and in order to improve the quality of products, enterprises will strive to prolong the storage time, so that the drying technology becomes one of the main technologies. The water activity is reduced by drying technology, and the growth and reproduction of microorganisms are inhibited, so that the storage time and the material effect are prolonged.

At present, technologies such as microwave drying, hot air drying and infrared drying are mostly adopted in drying devices, the traditional drying technologies mostly adopt high-temperature and long-time drying modes, water is evaporated by means of high temperature, greenhouse gas can be discharged while energy consumption is low, environment pollution is caused, and physical, chemical and biological characteristics of food can be changed violently under the high-temperature condition. Part of drying technology will adopt vacuum low temperature drying to avoid the damage of high temperature to the product, but vacuum and low temperature drying process will produce great energy loss, and vacuum drying device is expensive, and can't dry the material continuously, only can batch process. In recent years, a high-voltage electric field drying method appears, materials can be dried at atmospheric pressure and normal temperature by utilizing the polar effect of water molecules in a high-voltage electric field, and the method has the advantages of low energy consumption and sterilization and freshness preservation. However, the high-voltage electric field drying device is generally driven by an alternating current or direct current power supply, and has low energy efficiency, and although the operation temperature is low, the drying speed is slow.

The ion wind is considered to be caused by accelerating charged particles generated in the corona discharge with the aid of an electric field and colliding with surrounding air molecules. There is no essential difference between the ion wind and the wind of the fan. The difference is that the fan converts the electric energy into mechanical energy and then into air kinetic energy. And the ion wind directly converts the electric energy into the kinetic energy of the fluid. The ion wind has the advantages of no moving parts, no noise, no vibration, convenient direct voltage control, low power consumption, fast response and the like because the transition of mechanical energy is removed, and can convey the wind to places which can not be reached by the traditional fan.

On one hand, with the deepening of the research of the Electrohydrodynamic (EHD) technology and the continuous expansion of the application range, the ion air drying technology based on the EHD is taken as an important research result of the electrohydrodynamic technology, and the potential application prospect thereof has attracted the wide attention of researchers at home and abroad. The high-voltage electric field drying device has the advantages of low investment, low energy consumption, no temperature rise and the like, and is applied to the fields of bulk drying, industrial drying, medical instrument drying and the like, and the high-voltage electric field drying technology has a great potential application value in the field of agricultural and sideline product drying. The high-voltage electric field drying device can directly accelerate the evaporation of water only through an electric field, is a novel drying technology, and is therefore well paid attention by researchers at home and abroad. On the other hand, water molecules are treated by magnetic fields such that the nature of the charged ions and the velocity of the hydrogen ion changes, as well as the polarization characteristics or dipole moment changes of the free molecules and the stars, including electromagnetic fields, affect the linear and cyclic hydrogen bonding chains of the molecules in water. The magnetization causes many changes to the physical properties of water, such as viscosity reduction, density reduction, volatility acceleration, specific surface area increase, surface tension reduction and the like, thereby promoting the diffusion of water molecules in the material and reducing the drying time. The magnetization treatment of the permanent magnet on the materials is combined with the high-voltage electric field drying, so that the high-efficiency treatment at normal temperature and normal pressure is realized, and the time for conventional electric field drying is shortened.

Therefore, the invention aims at optimizing the drying device and improving the drying effect, and combines the advantages of the plasma, the electrohydrodynamic mechanics and the magnetic field, so as to design the drying device combining the solar-powered pulse power supply driving magnetic field and the high-voltage electric field, and the drying device is the plasma drying device which can be used for drying food, medicines and the like.

Disclosure of Invention

Aiming at the problems, the invention mainly aims to design a solar pulse power supply driving magnetic field coupling high-voltage electric field drying device, which adopts an electric field enhanced type ion wind exciter which is independently developed and developed, and controls an electron current collapse column in the corona discharge process through electric field distortion, so that the ion wind speed is increased, and the energy conversion efficiency is improved; the auxiliary magnetic field drying changes the motion track of the charged particles, the mean free path of free electrons is increased, the ion wind speed is increased rapidly, and the drying time is shortened. The permanent magnet is used for replacing a heat collection module in the traditional high-pressure drying process, so that the electric energy consumption in the drying process is greatly reduced.

In order to achieve the purpose, the invention adopts the following technical scheme:

a solar pulse power supply driving magnetic field coupling high-voltage electric field drying device comprises a power supply module, a microcomputer control module, a direct current boosting module, a pulse generation module, an overcurrent protection module, a needle-net electrode drying module and a magnetic field generation module;

the power supply module is connected to the microcomputer control module, the microcomputer control module is connected to the direct current boosting module, the direct current boosting module is connected to the pulse generation module, the pulse generation module is connected to the overcurrent protection module, the overcurrent protection module is connected to the needle-mesh electrode drying module, and the magnetic field generation module is connected to the needle-mesh electrode drying module;

the power supply module comprises a solar module and urban power;

the needle-mesh electrode drying module and the magnetic field generating module comprise needle electrodes and mesh electrodes, and the pulse generating module is connected with the needle electrodes.

As a further description of the present invention, the power supply module further includes a storage battery, and the solar module is connected to the storage battery.

As a further description of the present invention, the needle electrode includes six stainless steel needles arranged in parallel, the distance between two adjacent stainless steel needles is the same, the stainless steel needles are perpendicular to the aluminum plate, the aluminum plate is horizontally disposed, the needle electrode is perpendicular to the mesh electrode, and the needle tips of the stainless steel needles are in the same plane.

As a further description of the invention, six stainless steel needles are distributed at the vertex and the side length midpoint of a regular triangle taking the circle center of the aluminum plate as the center.

As a further description of the invention, the stainless steel needle is externally wrapped by an insulating rubber sleeve, and the insulating rubber sleeve insulates the stainless steel needle from the aluminum plate.

As a further description of the invention, the drying device comprises a box body, an inverted U-shaped support is fixed at the middle part of the upper part of the box body, a connecting rod is arranged through the inverted U-shaped support and the box body, a micrometer screw is arranged above the connecting rod, a needle electrode is arranged below the connecting rod, the mesh electrode is arranged below the needle electrode, and the mesh electrode is vertical to the needle electrode.

As further description of the invention, the needle-mesh electrode drying module further comprises a heating module and a temperature control module, and the heating module and the temperature control module are arranged on the side surface of the box body.

As further description of the invention, a power supply is also arranged on the side surface of the box body, and the power supply comprises a power supply module, a microcomputer control module, a direct current boost module, a pulse generation module and an overcurrent protection module.

As a further description of the invention, the magnetic field generation module is arranged below the box body, the magnetic field generation module comprises two identical semi-ring type permanent magnet combinations, and the magnetic field generation module is arranged around the needle electrode and the mesh electrode.

Compared with the prior art, the invention has the technical effects that:

the invention provides a solar pulse power supply driving magnetic field coupling high-voltage electric field drying device, which adopts a technology of combining magnetic field treatment and a high-voltage electric field, replaces the technology of a high-voltage electric field drying module auxiliary heating module in the existing high-voltage electric field drying technology, shortens the drying time through the treatment of the magnetic field on one hand, and replaces the traditional auxiliary heating module with the magnetic field on the other hand, thereby greatly reducing the energy consumption in the drying process;

through magnetic field treatment, the treatment speed is accelerated, the energy consumption is reduced by nearly 50%, the food drying rate is improved, and ozone and ultraviolet rays generated by corona discharge play a role in sterilizing and preserving the food to be treated; the pulse power supply can be supplied by commercial power or solar energy, and can maintain the continuity of drying and consider the energy consumption problem of drying under different conditions; the drying process does not raise the temperature, improves the water absorption rate and the rehydration rate after drying, relieves the loss of food nutrient components caused by the traditional thermal drying, and is suitable for the drying fields of food, medicines, biological products, other industrial production and the like.

Drawings

FIG. 1 is a schematic block diagram of the present invention;

FIG. 2 is a structural view of the present invention;

FIG. 3 is a schematic diagram of the circuit of the present invention;

fig. 4 is a comparison of the drying effect of the present invention compared to the prior art.

In the figure, 1, a box body, 2, an inverted U-shaped bracket, 3, a connecting rod, 4, a spiral micrometer, 5, a heating module, 51, a temperature control module, 6, a power supply and 7, a semi-ring permanent magnet.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures:

a solar pulse power supply driving magnetic field coupling high-voltage electric field drying device is shown in a reference figure 1-3 and comprises a power supply module, a microcomputer control module, a direct current boosting module, a pulse generation module, an overcurrent protection module, a needle-net electrode drying module and a magnetic field generation module;

the power supply module is connected to the microcomputer control module, the microcomputer control module is connected to the direct current boosting module, the direct current boosting module is connected to the pulse generation module, the pulse generation module is connected to the overcurrent protection module, the overcurrent protection module is connected to the needle-mesh electrode drying module, and the magnetic field generation module is connected to the needle-mesh electrode drying module; the power supply module comprises a solar module and urban power; the needle-mesh electrode drying module and the magnetic field generating module comprise needle electrodes and mesh electrodes, and the pulse generating module is connected with the needle electrodes; the microcomputer control module is mainly a singlechip, and adopts an STM32RBT6 model singlechip; the pulse generation module comprises a pulse booster.

The magnetic field generating module forms a stable magnetic field by combining two semi-ring type permanent magnets which are completely consistent and surrounding the needle-mesh electrode drying module.

The above-mentioned contents disclose the modules included in the invention in detail, and the composition and connection relationship among the modules, two kinds of electric energy output by the power supply module are controlled and switched by the microcomputer control module and supplied to the direct current boosting module, then the pulse generation module forms pulse high voltage, the pulse generation module provides the pulse high voltage for the needle electrode through the current protection module to form a high voltage electric field, and the magnetic field generation module forms a stable magnetic field by forming a loop needle-net electrode drying module.

The voltage output by the power supply module is supplied to the direct current boosting module through the switching control of the microcomputer control module, meanwhile, the voltage of the direct current boosting module forms pulse high voltage through the pulse generating module, the pulse generating module provides the pulse high voltage for the needle electrode through the current protection module to form a high-voltage electric field, under the enhancement of the high-voltage electric field, the wind speed of the ion wind generated by the pulse driving needle-net electrode drying module is 0-3m/s, and finally, the ion wind is combined with a stable magnetic field formed by the magnetic field generating module surrounding the needle-net electrode drying module to form a high-voltage electromagnetic field, and materials are dried.

The power supply module further comprises a storage battery, and the solar module is connected to the storage battery.

As shown in fig. 3, the solar module is directly connected with the storage battery for charging, the storage battery can form stable low voltage through a voltage stabilizing source IC1 while charging, the microcomputer control module switches the voltage and supplies 12V stable output voltage to the direct current boosting module and the pulse generating module respectively, the 12V voltage output by the storage battery is subjected to high-frequency oscillation through the direct current boosting module to generate low-voltage pulse, and then the low-voltage pulse is rectified through the pulse booster to finally form 15kV direct current high voltage.

After being switched by the microcomputer control module, the electric energy of the city network is firstly rectified and converted into direct current voltage, then is boosted by the direct current boosting module, and is rectified by the pulse booster, and finally, direct current pulse high voltage of 15kV is formed.

The electric energy of the urban network forms stable direct current voltage after rectification, then the voltage is supplied to a direct current boosting module through the singlechip control switching of a microcomputer control module, the output direct current is sent to a pulse boosting transformer T after being chopped by IGBT (VT), the pulse voltage of 15kV is stably output, and the needle electrode of the needle-net electrode drying module is connected with the needle electrode through a current protection module, wherein the current protection module mainly comprises a resistor of 1M omega, the needle electrode and the net electrode form corona discharge under the voltage to generate ion wind, and the wind speed is 3M/s.

The needle electrode include parallel arrangement's six stainless steel needles, the interval of two adjacent stainless steel needles is the same, stainless steel needle perpendicular to aluminum plate, the aluminum plate level is placed, needle electrode perpendicular to net electrode, and the needle point of stainless steel needle is in the coplanar, six stainless steel needles distribute in the summit and the length of a side mid point that use the aluminum plate centre of a circle as the regular triangle of center, the outside parcel insulating gum cover of stainless steel needle, insulating gum cover forms the insulation between stainless steel needle and the aluminum plate.

The above-mentioned mode of setting up and the cooperation form that discloses needle electrode and net electrode, the length of stainless steel needle is 23mm, and the radius is 0.4mm, and the interval between needle and the needle is 20mm, and the distance between needle point and the aluminum plate can be adjusted between 15mm-25mm, the thickness of insulating gum cover be 0.8 mm.

As shown in fig. 2, an object structure view of the present invention is disclosed, and the structure of the present invention is more complete through the object view, and the specific arrangement manner is as follows:

the drying device disclosed by the invention comprises a box body 1, wherein an inverted U-shaped support 2 is fixed in the middle of the upper part of the box body 1, a connecting rod 3 is arranged through the inverted U-shaped support 2 and the box body 1, a micrometer screw 4 is arranged above the connecting rod 3, a needle electrode is arranged below the connecting rod 3, a mesh electrode is arranged below the box body 1, and the mesh electrode vertically corresponds to the needle electrode.

The needle-mesh electrode drying module further comprises a heating module 5 and a temperature control module 51, and the heating module 5 and the temperature control module 51 are arranged on the side face of the box body 1.

The side of the box body 1 is also provided with a power supply 6, and the power supply 6 comprises a power supply module, a microcomputer control module, a direct current boosting module, a pulse generation module and an overcurrent protection module.

The magnetic field generating module is arranged below the box body 1 and comprises two identical semi-ring-shaped permanent magnet 7 combinations, and the magnetic field generating module is arranged around the needle electrode and the net electrode.

The invention provides a solar pulse power supply driving magnetic field coupling high-voltage electric field drying device, which utilizes the combination of a magnetic field processing technology and a high-voltage electric field drying technology, replaces the technology of a high-voltage electric field drying module auxiliary heating module in the existing high-voltage electric field drying technology, changes the motion track of charged particles from the angle of a magnetic field, thereby regulating the distribution of a flow field and improving the ionic wind strength; the electromagnetic field influences linear and annular hydrogen bond chains of molecules in water, so that drying time is shortened, high-voltage electric field drying replaces traditional thermal drying, and the method has the advantages of no noise, no vibration, convenience in direct voltage control, low power consumption, quick response and the like; the air can be sent to the place which can not be reached by the traditional drying method; the material performance change caused by the traditional drying method is avoided, on one hand, the drying time is shortened through the treatment of the magnetic field, on the other hand, the magnetic field replaces the traditional auxiliary heating module, and the energy consumption in the drying process is greatly reduced.

The high-voltage electrode module adopts a special novel multi-needle electrode with a metal aluminum plate, is an electric field enhanced ion wind exciter which is independently developed and researched, optimizes the parameters of an electrode device through a plurality of comparison tests, and finally selects the electrode form, namely, six identical stainless steel needles are fixed at the top point and the middle point of the side length of a regular triangle taking the circle center of the aluminum plate as the center, so that the device is ensured to generate larger ion wind, and higher corona energy conversion efficiency is maintained; the length of the multi-needle electrode extending out of the metal aluminum plate is kept consistent, all needle electrodes can be uniformly discharged simultaneously in the corona reaction process, the uniformity of material drying in the reaction process is guaranteed, the electric field distribution between the distorted electrodes improves the wind speed of corona discharge ions and the electric energy conversion efficiency, the efficiency of material drying is improved, and the energy consumption is reduced.

The invention adopts clean and pollution-free solar energy as a main energy source, and adopts a power supply mode combined with a rechargeable storage battery, the initial 12V voltage forms a high-efficiency microsecond pulse high-voltage power supply to supply power for a main reaction electrode after being rectified by a booster circuit, a pulse generation module and a pulse booster, the energy collected by a solar panel provides electric energy for the whole device under the condition of sufficient illumination, the redundant energy is stored in the storage battery, meanwhile, the power supply mode can be intelligently switched by a monitoring induction device to be changed into the storage battery power supply, the clean energy is utilized to the maximum degree while the power supply stability is ensured, the commercial power is separated, and the energy-saving and environment-friendly effects are realized.

As shown in fig. 4, a comparison graph of the ion air drying effect measured by the optimal ZJ-CAZ2 liquid contact angle measuring platform and the drying effect under other drying conditions is disclosed, and it can be seen that the change of the liquid drop under the natural evaporation condition is less obvious after standing for 20min, a small amount of evaporation of the liquid drop under the electric auxiliary heating condition is performed after 20min, and the liquid drop dried by the ion air drying device is dried quickly within 9min, the liquid drop disappears, and the drying efficiency is higher.

The above embodiments are only for illustrating the technical solutions of the present invention and are not limited, and other modifications or equivalent substitutions made by the technical solutions of the present invention by the ordinary skilled person in the art are included in the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.