CN113519751A

CN113519751A - A kind of food workshop disinfection equipment based on plasma technology

Info

Publication number: CN113519751A
Application number: CN202110851789.1A
Authority: CN
Inventors: 熊传武; 邵磊
Original assignee: Anhui Zhianxuan Food Safety Technology Co ltd
Current assignee: Anhui Zhianxuan Food Safety Technology Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2021-10-22

Abstract

The invention relates to the technical field of environmental disinfection in the food industry, and discloses a food workshop disinfection device based on plasma technology. An insulating rod is fixedly arranged, a conductive plate is arranged in the telescopic cylinder, a conducting wire is fixedly arranged on one side of the conductive plate, an inner cylinder is arranged on the outer casing of the telescopic cylinder, the inner wall of the inner cylinder is surrounded by a first electrode, and both ends of the inner cylinder are A first sealing cover is fixedly arranged, the bottom surface of the first sealing cover is fixedly provided with a galvanized outer jacket, a galvanized locking sleeve is arranged at the junction of the galvanized outer jacket and the first sealing cover, and the outer jacket of the first sealing cover is provided with a first O The inner tube is provided with an outer tube, and both ends of the outer tube are fixedly provided with a second sealing cover. The workshop disinfection equipment produces high-energy active particles such as ions, free radicals, photons, electrons, excited atoms and molecules through plasma discharge, thereby sterilizing food.

Description

Food workshop disinfecting equipment based on plasma technology

Technical Field

The invention relates to the technical field of environmental disinfection in the food industry, in particular to a plasma technology-based food workshop disinfection device.

Background

Food enterprise is in processing production, must guarantee the clean health pollution-free of production environment, common disinfection mode is personnel's disinfection, the cleaning and disinfection of multiplexer utensil, equipment cleaning and disinfection, workshop ground wall cleaning and disinfection, workshop air disinfection, the disinfection of material packing, above disinfection mode majority is from pollution source and contact source solution food pollution problem, mould spore etc. in the air when food cooling package, thereby can descend to the product surface and pollute food, food workshop air disinfection is the common means of guaranteeing food workshop environmental sanitation condition, there is not safe workshop environment and will bring very big risk for the product. Since mold and bacteria are present in the air environment of the plant, growth and propagation are performed at a proper temperature and time, and the food is contaminated by contact with the air before the food is packaged. Therefore, it is very important to ensure the quality of the air in the plant in the food factory and to regularly sterilize the air.

At present, the traditional air sterilization technology used in food factories mainly comprises chemical sterilization, ultraviolet sterilization, ozone sterilization and the like, but the sterilization means has the following defects:

(1) the chemical sterilization technology utilizes the strong oxidizing property of chemical agents to destroy the structure of microorganisms, and a common chemical is peroxyacetic acid, so that the chemical sterilization technology has the advantages of quick response and the defects of chemical residues and damage to human bodies.

(2) The ultraviolet sterilization technology is to cause radiation damage to microorganisms by utilizing the strong absorptivity of nucleoprotein to radiation in a 200-300 nm wave band, has the advantages of no residue, and has the defects of causing damage to human bodies, simultaneously having poor ultraviolet penetration force only acting on short distance and bringing the risk of glass foreign matters, and the commonly used technology is an ultraviolet lamp.

(3) The common ozone sterilization technology is an ozone generator, ozone is a strong oxidant, and the sterilization process belongs to biochemical reaction. It features thorough sterilization, spectrum of sterilization, and the disadvantage of irritation to human respiratory mucosa, and ozone is a strong oxidant, and has destructive effect on various articles, such as discoloration and aging.

An effective solution to the problems in the related art has not been proposed yet.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a plasma technology-based food workshop disinfection device which has the advantages of no chemical residue, no radiation, no damage to food and the like, and solves the problems of chemical disinfection residue, ultraviolet sterilization radiation and ozone sterilization damage to articles.

(II) technical scheme

In order to solve the technical problems of chemical disinfection residual chemicals, ultraviolet sterilization radiation and ozone sterilization damage of articles, the invention provides the following technical scheme:

a food workshop disinfection device based on a plasma technology comprises a telescopic cylinder, wherein insulating blocks are sleeved in two ends of the telescopic cylinder, an insulating rod is fixedly arranged at one end, away from the telescopic cylinder, of each insulating block, a current conducting plate is arranged in the telescopic cylinder, an electrified conducting wire is fixedly arranged on one surface of the current conducting plate, an inner cylinder is sleeved on the telescopic cylinder, a first electrode is arranged on the inner wall of the inner cylinder in a surrounding manner, first sealing covers are fixedly arranged at two ends of the inner cylinder, a galvanized outer sleeve is fixedly arranged on the bottom surface of each first sealing cover, a galvanized locking sleeve is arranged at the junction of the galvanized outer sleeve and the first sealing cover, a first O-shaped ring is sleeved on the first sealing cover, an outer cylinder is sleeved on the inner cylinder, second sealing covers are fixedly arranged at two ends of the outer cylinder, a second O-shaped ring is fixedly arranged in the middle of each second sealing cover, the urceolus overcoat is equipped with the second electrode, the both ends of second electrode all are equipped with the clamp, the fixed block that is provided with in top of clamp, it is provided with the set screw to run through in the fixed block.

Preferably, the material of a flexible section of thick bamboo is the stainless steel, the both ends of a flexible section of thick bamboo and two carry out fixed connection through interference fit between the collets, the collets with the material of insulator spindle is the bakelite.

Preferably, the conductive plate and the telescopic cylinder are in contact with one of the two insulating blocks, and an electrified lead on one surface of the conductive plate penetrates through the conductive plate and the corresponding insulating rod which are in contact with each other.

Preferably, the material of first electrode is the stainless steel, the shape of first electrode is diameter 0.8 mm's acicular, the material of second electrode is the stainless steel, the second electrode parcel is in outside the urceolus, the second electrode pass through the clamp with urceolus reciprocal anchorage, the material of clamp is red copper.

Preferably, the second sealing cover is made of nylon, the second O-shaped ring is made of insulating rubber, and the second O-shaped ring is fixedly connected with the outer cylinder through the second sealing cover.

Preferably, the inner cylinder is made of quartz glass, the outer cylinder is made of quartz glass, and the galvanized outer sleeve is fixedly connected with the inner cylinder through a galvanized locking sleeve.

Preferably, the longest state of the telescopic cylinder is consistent with the length occupied by all the steel needles of the first electrode on the inner wall of the inner cylinder, and the diameter of the inner wall of the telescopic cylinder is consistent with that of the conductive plate.

Preferably, the first electrode is connected with a high-voltage end, and the second electrode is connected with a low-voltage end through the clamping hoop.

(III) advantageous effects

Compared with the prior art, the invention provides a food workshop sterilizing device based on a plasma technology, which has the following beneficial effects:

1. according to the food workshop disinfection equipment based on the plasma technology, a large amount of low-temperature plasma is stored between the inner cylinder and the outer cylinder, the gas is partially or completely ionized through an external electric field, and finally becomes a conductive medium to form current, because the low-temperature plasma contains active particles with high energy such as various ions, free radicals, photons, electrons, excited state atoms, molecules and the like, the plasma and the surface of the food are subjected to energy exchange by mainly collision of charged particles and neutral particles and light radiation, and the energy transfer process is a process for removing bacteria and viruses in the food, so that the food is sterilized, chemical substance residues are prevented, the human body is prevented from being injured, and the food is beneficial to the health of human beings.

2. The food workshop disinfection equipment based on the plasma technology is characterized in that current passes through an electrified lead and a conductive plate, the current passes through a telescopic cylinder through the contact of the conductive plate and the telescopic cylinder, and then passes through a first electrode in contact with the telescopic cylinder, because the first electrode is a stainless steel needle and a voltage difference exists between the first electrode and a second electrode, under the action of a strong electric field, a discharge phenomenon generated at the sharp part of an object is called point discharge, the point discharge causes air near the first electrode to be ionized to generate gas discharge, so that plasma discharge is generated between an inner cylinder and an outer cylinder, and active particles with high energy such as generated ions, free radicals, photons, electrons, excited state atoms, molecules and the like are conveyed out through the inner cylinder and interact with the surface of food, so that bacterial viruses in the food can be killed, and the harm of an ultraviolet sterilization technology to a human body is avoided, meanwhile, the sterilization and disinfection can be fully performed without the limitation of penetrating power.

3. The food workshop sterilizing equipment based on the plasma technology accelerates free electrons under the action of an external electric field when gas discharges, transfers energy to neutral atoms and molecules through collision of the free electrons, enables the reactant molecules to be excited, dissociated and ionized to generate more secondary free electrons and more neutral particles, and finally enables the gas to become a conductive medium to form current, so that active particles with high energy such as various ions, free radicals, photons, electrons, excited state atoms, molecules and the like in the low-temperature plasma exchange energy with the surface of food and the like, thereby eliminating bacteria and viruses in the food, avoiding the harm of ozone sterilization to the respiratory tract of workers and the damage of the food by ozone, which is a strong oxide, thereby ensuring the integrity and the taste of the food, being beneficial to increasing the sales volume and further promoting the economic development.

4. This food workshop disinfecting equipment based on plasma technique promotes the collets through promoting the insulator spindle and removes, and then promotes a flexible section of thick bamboo through the insulator spindle and stretch out and draw back the extension to the area of contact of adjustable flexible section of thick bamboo and first electrode, thereby the adjustment distance of discharging, and then reach the adjustment to the power of discharging degree, thereby make the speed that the plasma discharges be unlikely to too fast and lead to the waste, can guarantee again that the plasma discharges the back and carry out sterilization treatment to food.

5. This food workshop disinfecting equipment based on plasma technique, the material through the clamp is red copper, thereby accessible clamp ground connection switch-on second electrode, and then make second electrode ground connection, because the material of first electrode is the stainless steel needle, connect the high voltage end through first electrode, second electrode and clamp connection low voltage end, thereby make and form the voltage difference between first electrode and the second electrode, thereby accessible needle-like point realizes point discharge, thereby puncture the air medium between inner tube and the urceolus, make the excitation of reactant molecule, dissociation and ionization, produce more secondary free electrons, ionize more neutral particle, finally make gas become conducting medium and form the electric current, but the reaction system can keep low temperature again, even be close to the room temperature, need not unnecessary cooling or scald preventing measure, factor of safety is high, accommodation is wide.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

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

FIG. 4 is one of the schematic partial exploded views of the present invention;

fig. 5 is a second schematic diagram of the partial explosion of the present invention.

In the figure: 1. a telescopic cylinder; 2. an insulating rod; 3. an inner barrel; 4. a first electrode; 5. a first sealing cover; 6. galvanizing the outer sleeve; 7. galvanizing a locking sleeve; 8. a first O-ring; 9. an outer cylinder; 10. a second sealing cover; 11. a second O-ring; 12. a second electrode; 13. clamping a hoop; 14. a fixed block; 15. fixing screws; 16. an insulating block; 17. a conductive plate; 18. and (6) electrifying the lead.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a food workshop sterilization apparatus based on plasma technology comprises a telescopic cylinder 1, wherein two ends of the telescopic cylinder 1 are internally sleeved with insulating blocks 16, one end of each insulating block, which is far away from the telescopic cylinder 1, is fixedly provided with an insulating rod 2, so that the insulating blocks 16 can be pushed to move by pushing the insulating rods 2, and the telescopic cylinder 1 is further pushed to extend and retract by the insulating blocks 16, so that the contact area between the telescopic cylinder 1 and a first electrode 4 can be adjusted, a conductive plate 17 is arranged in the telescopic cylinder 1, one side of the conductive plate 17 is fixedly provided with an electrified lead 18, so that the telescopic cylinder 1 can be electrified by the electrified lead 18 and the conductive plate 17, so that a voltage can be applied to the first electrode 4, the first electrode 4 is at a high-voltage end relative to a second electrode 12, a voltage difference is formed between the first electrode 4 and the second electrode 12, the telescopic cylinder 1 is externally sleeved with an inner cylinder 3, a first electrode 4 is arranged on the inner wall of the inner cylinder 3 in a surrounding manner, first sealing covers 5 are fixedly arranged at two ends of the inner cylinder 3, a galvanized outer sleeve 6 is fixedly arranged on the bottom surface of the first sealing cover 5, a galvanized locking sleeve 7 is arranged at the junction of the galvanized outer sleeve 6 and the first sealing cover 5, a first O-shaped ring 8 is sleeved outside the first sealing cover 5, so that the space of the inner cylinder 3 is completely sealed, dust in the air is prevented from entering the inner cylinder 3, substances in the air are prevented from influencing the air of the inner cylinder 3, the dielectric strength of the space in the inner cylinder 3 is influenced, the breakdown voltage is changed, the activity of active particles such as ions, free radicals, photons, electrons, excited state atoms, molecular energy and the like is prevented from being influenced due to over-small or over-large discharge amount, the outer cylinder 9 is sleeved outside the inner cylinder 3, and second sealing covers 10 are fixedly arranged at two ends of the outer cylinder 9, the fixed second O type circle 11 that is provided with in the centre of the sealed lid 10 of second, urceolus 9 overcoat is equipped with second electrode 12, the both ends of second electrode 12 all overlap and are equipped with clamp 13, the fixed block 14 that is provided with in top of clamp 13, it is provided with set screw 15 to run through in the fixed block 14, fixed block 14 has two, thereby make two fixed blocks 14 be close to each other through set screw 15, and then reduce the internal diameter of clamp 13, thereby make clamp 13 oppress second electrode 12, and then make the second electrode fix on urceolus 9.

Further, telescopic cylinder 1's material is the stainless steel, carries out fixed connection through interference fit between telescopic cylinder 1's both ends and two collets 16, and collets 16 and insulator spindle 2's material are the insulated bakelite to when avoiding adjusting telescopic cylinder 1's length through insulator spindle 2, lead to the electric leakage, avoid the user to electrocute.

Further, the conductive plate 17 and the telescopic cylinder 1 are in contact with one of the two insulating blocks 16, and the current conducting wire 18 on one side of the conductive plate 17 penetrates through the contact conductive plate 17 and the corresponding insulating rod 2, so that voltage can be input to the conductive plate 17.

Further, the material of first electrode 4 is the stainless steel, the shape of first electrode 4 is the acicular of diameter 0.8mm, the material of second electrode 12 is the stainless steel, thereby point discharge is realized to accessible acicular point, thereby puncture the air medium between inner tube 3 and urceolus 9, second electrode 12 wraps up outside urceolus 9, second electrode 12 passes through clamp 13 and urceolus 9 reciprocal anchorage, the material of clamp 13 is red copper, thereby accessible clamp 13 ground connection switch-on second electrode 12, and then make second electrode 12 ground connection.

Further, the second sealing cover 10 is made of nylon, the second O-ring 11 is made of insulating rubber, so that the second sealing cover 10 and the outer cylinder 9 are completely sealed through deformation of the insulating rubber, and the second O-ring 11 is fixedly connected with the outer cylinder 9 through the second sealing cover 10.

Furthermore, the inner cylinder 3 is made of quartz glass, the outer cylinder 9 is made of quartz glass, and the galvanized outer sleeve 6 is fixedly connected with the inner cylinder 3 through a galvanized locking sleeve 7.

Further, the longest state of the telescopic cylinder 1 is consistent with the length occupied by all the steel needles of the first electrode 4 on the inner wall of the inner cylinder 3, and the diameter of the inner wall of the telescopic cylinder 1 is consistent with the diameter of the conductive plate 17, so that the conductive plate 17 can move in the telescopic cylinder 1, and the insulating block 16 and the insulating rod 2 cannot be obstructed to adjust the length of the telescopic cylinder 1.

Further, the first electrode 4 is connected with a high-voltage end, the second electrode 12 and the clamp 13 are connected with a low-voltage end, so that a voltage difference is formed between the first electrode 4 and the second electrode 12, an air medium is punctured through point discharge, when gas is discharged, free electrons are accelerated under the action of an external electric field, energy is transferred to neutral atoms and molecules through collision, reactant molecules are excited, dissociated and ionized, more secondary free electrons are generated, more neutral particles are ionized, and finally the gas becomes a conductive medium to form current, but a reaction system can keep low temperature and even approach room temperature, so that the gas is widely applied.

The working principle is as follows: in use, a large amount of low-temperature plasma is stored between the inner cylinder 3 and the outer cylinder 9, and the plasma is a basic form widely existing in other than gas, liquid, and solid states, and is called a fourth state of matter. The plasma is a non-condensed system generated by partially or completely ionizing a gas by means of heating, an external electric field, laser irradiation, combustion, shock waves, or the like under a specific condition. It consists of neutral atoms or molecules, excited atoms or molecules, free radicals, electrons or negative ions, positive ions and radiation photons. The positive and negative charges in the system are equal in quantity, the whole system is neutral in electricity, and the state of the plasma is mainly determined by the constituent particles, the particle density and the particle temperature. Plasmas can be divided into two broad categories, thermal equilibrium plasmas and non-equilibrium plasmas, depending on their particle temperature. A plasma in which the electron temperature and the ion temperature are equal is called a thermal equilibrium plasma. When the electron temperature is much higher than the ion temperature, the plasma is called non-equilibrium plasma, the electron temperature can be as high as 10000K or more, and the temperature of heavy particles such as ions and atoms can be as low as 300-500K. Therefore, the temperature of the particles, also called low temperature plasma, is generally formed under a low pressure of 10 KPa. During gas discharge, free electrons are accelerated under the action of an external electric field, energy is transferred to neutral atoms and molecules through collision of the free electrons, reactant molecules are excited, dissociated and ionized to generate more secondary free electrons and more neutral particles, and finally the gas becomes a conductive medium to form current, low-temperature plasma contains various ions, free radicals, photons, electrons, excited atoms, molecules and other high-energy active particles, the plasma and the surface energy exchange of food is mainly realized through collision of charged particles and neutral particles and light radiation, particularly ultraviolet light acting on air, the energy transfer process is a process for removing bacterial viruses in the food, firstly, the current passes through an electrified lead 18 and a conductive plate 17, and the current passes through the telescopic cylinder 1 through the contact of the conductive plate 17 and the telescopic cylinder 1, and then through the first electrode 4 contacting with telescopic cylinder 1, because the first electrode 4 is the stainless steel needle, and there is voltage difference between second electrode 12 and the first electrode 4, under the strong electric field effect, a kind of discharge phenomenon that the sharp-pointed part of the object takes place is called the point discharge, the point discharge causes the air near the first electrode 4 to be ionized and produce the gas discharge, thus make produce plasma discharge between outer cylinder 9 and the inner cylinder 3, active particle of high energy such as ion, free radical, photon, electron, excited state atom and molecule produced, etc., transport out through the inner cylinder 2, interact with surface of food, can kill the bacterium virus in the food. In addition, when the plasma sterilization device is used specifically, the insulating block 16 can be pushed to move by pushing the insulating rod 2, and the telescopic cylinder 1 can be pushed to stretch and extend by the insulating block 16, so that the contact area between the telescopic cylinder 1 and the first electrode 4 can be adjusted, the discharge distance can be adjusted, the discharge intensity can be adjusted, the plasma discharge speed is not too high, waste is avoided, sterilization treatment can be performed on food after plasma discharge,

although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A food workshop disinfection equipment based on plasma technology, comprising a telescopic cylinder (1), characterized in that: the two ends of the telescopic cylinder (1) are internally sleeved with insulating blocks (16), and the insulating blocks are far from An insulating rod (2) is fixedly arranged at one end of the telescopic cylinder (1), a conductive plate (17) is arranged in the telescopic cylinder (1), and a conducting wire (18) is fixedly arranged on one side of the conductive plate (17). ), the telescopic cylinder (1) is provided with an inner cylinder (3), the inner wall of the inner cylinder (3) is surrounded by a first electrode (4), and both ends of the inner cylinder (3) are fixed A first sealing cover (5) is provided, the bottom surface of the first sealing cover (5) is fixedly provided with a galvanized outer jacket (6), and the galvanized outer jacket (6) is connected to the first sealing cover (5). The junction is provided with a galvanized locking sleeve (7), the first sealing cover (5) is covered with a first O-ring (8), and the inner cylinder (3) is covered with an outer cylinder (9), Both ends of the outer cylinder (9) are fixedly provided with a second sealing cover (10), and a second O-ring (11) is fixedly arranged in the middle of the second sealing cover (10). 9) The outer casing is provided with a second electrode (12), both ends of the second electrode (12) are provided with clamps (13), and the top of the clamp (13) is fixedly provided with a fixing block (14) A fixing screw (15) is arranged through the fixing block (14).

2. A kind of food workshop disinfection equipment based on plasma technology according to claim 1, is characterized in that: the material of described telescopic cylinder (1) is stainless steel, the two ends of described telescopic cylinder (1) and two The insulating blocks (16) are fixedly connected by interference fit, and the insulating blocks (16) and the insulating rods (2) are made of insulating bakelite.

3. A kind of food workshop disinfection equipment based on plasma technology according to claim 1, characterized in that: said conductive plate (17), said telescopic cylinder (1) and two said insulating blocks (16) One of the insulating blocks (16) is in contact, and the current-carrying wire (18) on one side of the conductive plate (17) runs through the contacted conductive plate (17) and the corresponding insulating rod (2).

4. A kind of food workshop disinfection equipment based on plasma technology according to claim 1, is characterized in that: the material of described first electrode (4) is stainless steel, and the shape of described first electrode (4) is diameter 0.8mm needle shape, the second electrode (12) is made of stainless steel, the second electrode (12) is wrapped outside the outer cylinder (9), and the second electrode (12) passes through a clamp ( 13) The outer cylinder (9) is fixed to each other, and the material of the clamp (13) is red copper.

5. A kind of food workshop disinfection equipment based on plasma technology according to claim 1, characterized in that: the material of the second sealing cover (10) is nylon, and the material of the second O-ring (11) is nylon. The material is insulating rubber, and the second O-ring (11) is fixedly connected to the outer cylinder (9) through the second sealing cover (10).

6. A kind of food workshop disinfection equipment based on plasma technology according to claim 1, is characterized in that: the material of described inner cylinder (3) is quartz glass, and the material of described outer cylinder (9) is quartz glass , the galvanized outer sleeve (6) and the inner cylinder (3) are fixedly connected by a galvanized locking sleeve (7).

7. A kind of food workshop sterilization equipment based on plasma technology according to claim 1, characterized in that: the longest state of the telescopic cylinder (1) and all the steel needles of the first electrode (4) are in the same The length occupied by the inner wall of the inner cylinder (3) is the same, and the diameter of the inner wall of the telescopic cylinder (1) is the same as the diameter of the conductive plate (17).

8. A food workshop disinfection equipment based on plasma technology according to claim 1, characterized in that: the first electrode (4) is connected to a high-voltage end, and the second electrode (12) is connected to the clamp (13) Connect to the low voltage side.