CN115428824A - Marine product low temperature low plasma sterilization equipment that keeps fresh - Google Patents
Marine product low temperature low plasma sterilization equipment that keeps fresh Download PDFInfo
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- CN115428824A CN115428824A CN202210979015.1A CN202210979015A CN115428824A CN 115428824 A CN115428824 A CN 115428824A CN 202210979015 A CN202210979015 A CN 202210979015A CN 115428824 A CN115428824 A CN 115428824A
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 56
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 50
- 238000009826 distribution Methods 0.000 claims abstract description 34
- 238000005192 partition Methods 0.000 claims abstract description 29
- 230000007246 mechanism Effects 0.000 claims abstract description 25
- 238000009827 uniform distribution Methods 0.000 claims abstract description 19
- 238000004321 preservation Methods 0.000 claims abstract description 15
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 11
- 230000004888 barrier function Effects 0.000 claims description 28
- 239000012212 insulator Substances 0.000 claims description 6
- 235000014102 seafood Nutrition 0.000 claims 5
- 238000009413 insulation Methods 0.000 claims 4
- 230000000694 effects Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 24
- 230000000903 blocking effect Effects 0.000 description 9
- 238000012545 processing Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000005428 food component Substances 0.000 description 1
- 235000012041 food component Nutrition 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000000447 pesticide residue Substances 0.000 description 1
- 238000009832 plasma treatment Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B4/00—General methods for preserving meat, sausages, fish or fish products
- A23B4/015—Preserving by irradiation or electric treatment without heating effect
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
- A23L5/30—Physical treatment, e.g. electrical or magnetic means, wave energy or irradiation
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
- H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Zoology (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Wood Science & Technology (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
Abstract
The invention discloses a marine product low-temperature low-plasma sterilization and preservation device, which comprises a box body, wherein the inner space of the box body is divided by a first partition plate, a second partition plate and a third partition plate to form an air inlet chamber, an ionization chamber, a sterilization chamber and an air outlet chamber which are mutually independent, the air inlet chamber is communicated with the ionization chamber through an air inlet hole formed in the first partition plate, the side wall of the air inlet chamber is connected with an air inlet pipe, a normal-pressure low-temperature plasma generating device used for generating plasma airflow is arranged in the ionization chamber, a plasma airflow uniform distribution mechanism used for uniformly distributing the plasma airflow in the ionization chamber and then introducing the plasma airflow into the sterilization chamber is arranged in the sterilization chamber, the plasma airflow uniform distribution mechanism is longitudinally arranged at intervals, a stainless steel wire mesh tray is placed above the plasma airflow uniform distribution mechanism, the sterilization chamber is communicated with the air outlet chamber through an air outlet hole formed in the third partition plate, and the side wall of the air outlet chamber is connected with an air outlet pipe. The invention has simple and compact structure, uniform distribution and distribution of low-temperature plasma and good sterilization and fresh-keeping effects.
Description
Technical Field
The invention relates to a sterilization device, in particular to a marine product low-temperature low-plasma sterilization and preservation device.
Background
China is a big country for breeding and exporting marine products, but the marine products are easy to breed microorganisms and are rapidly deteriorated after being caught, so that the preservation period of the marine products is usually short, and therefore, how to improve the preservation effect of the marine products, inhibit the deterioration of the marine products and prolong the shelf life of the marine products is a problem to be solved urgently at present.
The low-temperature plasma cold sterilization is a new non-thermal sterilization technology, which has become a hotspot in the research field at present and is widely applied to the aspects of disinfection and sterilization, food component modification, pesticide residue degradation, food packaging and processing and the like.
For example, an authorized publication number CN211910400U, a chinese patent with an authorized publication date of 2020, 11, month and 13, discloses an intermittent fresh agricultural product plasma preservation device, which comprises a processing cavity, a plasma generator, a fan and a hand-operated valve, wherein a tray is arranged in the processing cavity, and an air inlet and an air outlet are arranged on the processing cavity; the plasma generator is communicated with the air inlet through a vent pipe, and the hand-operated valve is communicated with the air outlet through a vent pipe. The plasma preservation equipment has the following defects: the low temperature plasma who produces gets into the treatment chamber from the bottom through the breather pipe in (from down up) carries out sterilization treatment to fresh agricultural product, and the low temperature plasma of bottom can receive the blockking of fresh agricultural product (material) on the tray, leads to the difficult ease of low temperature plasma of treatment chamber bottom to the treatment chamber top, and the low temperature plasma distribution and the distribution of treatment intracavity are inhomogeneous, influence plasma treatment's homogeneity and treatment effect.
Disclosure of Invention
The invention aims to solve the problem of uneven distribution of low-temperature plasma distribution holes in the plasma preservation equipment in the prior art, and provides the marine product low-temperature low-plasma sterilization preservation equipment which is simple and compact in structure, even in distribution and distribution of low-temperature plasma, and good in sterilization preservation effect.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a marine product low temperature low plasma sterilization equipment that keeps fresh, the power distribution box comprises a box body, the inner space of box is separated by first baffle, second baffle and the third baffle of turning right from a left side and putting in proper order and is formed into mutually independent inlet chamber, ionization chamber, sterilization chamber and air outlet chamber, the inlet chamber is linked together through setting up the inlet port on first baffle with the ionization chamber, is connected with the intake pipe on the lateral wall of inlet chamber, be equipped with the ordinary pressure low temperature plasma generating device who is used for producing the plasma air current in the ionization chamber, be equipped with in the sterilization chamber and be used for introducing the plasma air current equipartition mechanism of sterilization chamber after the plasma air current equipartition in the ionization chamber, plasma air current equipartition mechanism sets up along longitudinal separation, and has put stainless wire net tray above plasma air current equipartition mechanism, and sterilization chamber and air outlet chamber are linked together through the venthole that sets up on the third baffle, even there is the outlet duct on the lateral wall of air outlet chamber. The air inlet chamber and the air outlet chamber are arranged to ensure the stability of air inlet and air outlet; the normal-pressure low-temperature plasma generating device can enable working gas to produce large-volume low-temperature plasma (airflow) in a dielectric barrier discharge mode under atmospheric pressure, and has the advantages of simple structure, convenience in operation and the like; the low-temperature plasma (airflow) in the ionization chamber enters a plasma airflow uniform distribution mechanism, is uniformly distributed and distributed in the sterilization chamber after being uniformly distributed by the plasma airflow uniform distribution mechanism, and carries out microbial inactivation on marine products placed on a stainless steel wire mesh tray; the waste gas in the sterilizing chamber enters the gas outlet chamber and is discharged through the gas outlet pipe for treatment. The invention has simple and compact integral structure, leads the working gas to produce large-volume low-temperature plasma (airflow) through the normal-pressure low-temperature plasma generating device, leads the low-temperature plasma to be uniformly distributed and distributed in the sterilization chamber through the plasma airflow uniform distribution mechanism, and has good distribution uniformity of the low-temperature plasma and good sterilization and fresh-keeping effects; the working gas in the invention can be selected from the atmosphere.
Preferably, the normal-pressure low-temperature plasma generating device comprises a front insulating plate and a rear insulating plate, the front insulating plate and the rear insulating plate are sequentially arranged in the ionization chamber along the air inlet direction, the edges of the front insulating plate and the rear insulating plate are fixedly sealed with the inner wall surface of the ionization chamber, and a plurality of dielectric barrier discharge units are arranged between the front insulating plate and the rear insulating plate. The front insulating plate and the rear insulating plate are used for supporting and fixing the dielectric barrier discharge unit, and play a role in blocking so as to ensure that working gas can pass through the dielectric barrier discharge unit in a single direction and continuously, so that the discharge of the dielectric barrier discharge unit is more uniform and stable, and the overheating of the dielectric barrier discharge unit can be avoided.
Preferably, the dielectric barrier discharge unit comprises a high-voltage electrode and a barrier dielectric tube, the barrier dielectric tube is fixed between the front insulating plate and the rear insulating plate, two ends of the barrier dielectric tube are communicated, the barrier dielectric tube is sleeved with a grounding electrode tube, the high-voltage electrode is arranged in the barrier dielectric tube, a gap between the barrier dielectric tube and the high-voltage electrode forms a region for generating plasma through discharge, the high-voltage electrode is connected with a high-voltage power supply through a wire, and the grounding electrode tube is led out of the ground through the wire. The high-voltage electrode can adopt a stainless steel column, the blocking medium tube can adopt a quartz tube, an epoxy resin tube, an insulating ceramic tube and the like, and the blocking medium material of the blocking medium tube can be selected as required; the grounding electrode tube can adopt a stainless steel tube; the front insulating plate, the rear insulating plate and the blocking medium pipe can be of a homogeneous integral structure; the width of the gap between the high-voltage electrode and the blocking medium pipe can be set as required; the high-voltage electrode and the blocking medium pipe are coaxially arranged.
Preferably, the marine product low-temperature low-plasma sterilization and preservation equipment further comprises a front connecting frame and a rear connecting frame, the front connecting frame and the rear connecting frame are respectively fixed on the outer sides of the front insulating plate and the rear insulating plate in an insulating mode through matching of the insulating columns and the insulators, two ends of the high-voltage electrode are respectively in conductive connection with the front connecting frame and the rear connecting frame, and the high-voltage electrode is connected with the high-voltage power supply through the front connecting frame or the rear connecting frame through a wire. The insulating columns are fixed at four corner positions between the front connecting frame and the front insulating plate and between the rear connecting frame and the rear insulating plate, the insulators are sleeved outside the insulating columns, and the insulating columns and the insulators can be made of insulating ceramics, epoxy resin and other materials.
Preferably, the front connecting frame and the rear connecting frame are both grid frames formed by horizontal connecting strips and vertical connecting strips.
Preferably, the grounding electrode tubes are connected with each other in an electrically conductive manner through an electrically conductive plate, and the grounding electrode tubes are led out of the wire through the electrically conductive plate to be grounded.
Preferably, the plasma airflow uniform distribution mechanism comprises a plurality of plasma airflow pipes distributed side by side, one end of each plasma airflow pipe is fixedly connected and sealed with a third partition plate, the other end of each plasma airflow pipe is fixedly connected with a second partition plate and communicated with the ionization chamber, air distribution ports are axially arranged on the upper side and the lower side of each plasma airflow pipe, vertically symmetrical V-shaped baffle plates are axially arranged between adjacent plasma airflow pipes in the same plasma airflow uniform distribution mechanism, the air distribution ports on the adjacent plasma airflow pipes in the same plasma airflow uniform distribution mechanism are positioned between the left and right adjacent V-shaped baffle plates, and two ends of each V-shaped baffle plate are respectively fixedly sealed with the second partition plate and the third partition plate. According to the invention, the upper side surface and the lower side surface of the plasma airflow pipe are provided with the air distribution ports along the axial direction, so that low-temperature plasma airflow can be uniformly sprayed out from the upper direction and the lower direction of the plasma airflow pipe, the upper surface and the lower surface of marine products placed on the stainless steel wire mesh tray can be directly and uniformly contacted with the low-temperature plasma airflow, and the sterilization effect is ensured; meanwhile, low-temperature plasma airflow generated in the ionization chamber enters the plasma airflow pipe for primary distribution and is uniformly sprayed out from the air distribution port for secondary distribution, and the low-temperature plasma in the sterilization chamber is very uniformly distributed; the V-shaped baffle plate positioned on the upper layer plays a role in stably supporting the tray, so that a certain distance exists between the stainless steel wire mesh tray and the gas distribution port positioned on the upper side of the plasma gas flow pipe, and marine products on the stainless steel wire mesh tray are prevented from blocking the gas distribution port, so that the gas flux of the low-temperature plasma gas flow is ensured.
Preferably, the inner walls of the gas distribution ports on two sides of the plasma gas flow pipe in the axial direction are inclined planes, so that the gas distribution ports form a flaring structure from inside to outside, and the outer inclined plane of the V-shaped baffle and the inner wall arranged as the inclined plane in the adjacent gas distribution port are coplanar to form a flow guide plane together. By adopting the structural design, the low-temperature plasma airflow can be sprayed out along the flow guide surface, the sprayed resistance is small, the sprayed angle is large, and the low-temperature plasma in the sterilization chamber can be distributed more uniformly.
Preferably, a fixed plate is arranged between the normal-pressure low-temperature plasma generating device and the second partition plate, a circular truncated cone-shaped guide cylinder with two through ends is arranged between the fixed plate and the second partition plate, a small-diameter port of the guide cylinder is communicated with a plasma airflow pipe corresponding to the guide cylinder, and a large-diameter port of the guide cylinder is communicated with the ionization chamber. The plasma airflow tube is communicated with the ionization chamber through the guide cylinder, and the guide cylinder is beneficial to quickly and uniformly introducing low-temperature plasma airflow in the ionization chamber into the plasma airflow tube.
Preferably, a box door is arranged on the side surface of the box body corresponding to the sterilization chamber.
Therefore, the invention has the following beneficial effects: the whole structure is simple and compact, the working gas is enabled to produce large-volume low-temperature plasma (airflow) through the normal-pressure low-temperature plasma generating device, the low-temperature plasma is enabled to be uniformly distributed and distributed in the sterilizing chamber through the plasma airflow uniform distribution mechanism, the distribution uniformity of the low-temperature plasma is good, and the sterilizing and fresh-keeping effects are good.
Drawings
Fig. 1 is a front view of the present invention.
Fig. 2 is a schematic view of the internal structure of fig. 1.
Fig. 3 is a front view of the atmospheric-pressure low-temperature plasma generating apparatus.
Fig. 4 is a right side view of fig. 3.
Fig. 5 is a schematic diagram of a connection of the dielectric barrier discharge cell of fig. 4.
Fig. 6 isbase:Sub>A sectional view taken alongbase:Sub>A-base:Sub>A in fig. 5.
Fig. 7 is a top view of the plasma flow distribution mechanism of fig. 1.
Fig. 8 is a sectional view taken along the direction B-B of fig. 7.
Fig. 9 is an enlarged view at C in fig. 2.
Fig. 10 is an enlarged view at D in fig. 8.
In the figure: the plasma sterilizing chamber comprises a box body 1, a first partition plate 2, a second partition plate 3, a third partition plate 4, an air inlet chamber 5, an ionization chamber 6, a sterilizing chamber 7, an air outlet chamber 8, an air inlet hole 9, an air inlet pipe 10, a stainless steel wire mesh tray 11, an air outlet hole 12, an air outlet pipe 13, a front insulating plate 14, a rear insulating plate 15, a high-voltage electrode 16, a blocking medium pipe 17, a grounding electrode pipe 18, a discharge plasma generating region 19, a front connecting frame 20, a rear connecting frame 21, an insulating column 22, an insulator 23, a conductive plate 24, a plasma airflow pipe 25, an air distribution port 26, a V-shaped baffle 27, a flow guide surface 28, a fixing plate 29, a flow guide cylinder 30 and a box door 31.
Detailed Description
The invention is further described with reference to the following figures and detailed description.
As shown in fig. 1 and 2, the marine product low-temperature low-plasma sterilization and preservation device comprises a box body 1, a front connecting frame 20 and a rear connecting frame 21, wherein the inner space of the box body is divided by a first partition plate 2, a second partition plate 3 and a third partition plate 4 which are sequentially arranged from left to right to form an air inlet chamber 5, an ionization chamber 6, a sterilization chamber 7 and an air outlet chamber 8 which are mutually independent, the side surface of the box body corresponding to the sterilization chamber is provided with a box door 31, the air inlet chamber is communicated with the ionization chamber through an air inlet hole 9 arranged on the first partition plate, the side wall of the air inlet chamber is connected with an air inlet pipe 10, the sterilization chamber is communicated with the air outlet chamber through an air outlet hole 12 arranged on the third partition plate, and the side wall of the air outlet chamber is connected with an air outlet pipe 13; a normal-pressure low-temperature plasma generating device for generating plasma airflow is arranged in the ionization chamber, a fixing plate 29 is arranged between the normal-pressure low-temperature plasma generating device and the second partition plate, the normal-pressure low-temperature plasma generating device comprises a front insulating plate 14 and a rear insulating plate 15 (shown in figures 3-6), the front insulating plate and the rear insulating plate are sequentially arranged in the ionization chamber along the air inlet direction, the edges of the front insulating plate and the rear insulating plate are hermetically fixed with the inner wall surface of the ionization chamber, a plurality of dielectric barrier discharge units are arranged between the front insulating plate and the rear insulating plate, each dielectric barrier discharge unit comprises a high-voltage electrode 16 and a barrier dielectric tube 17, the barrier dielectric tubes are fixed between the front insulating plate and the rear insulating plate, the two ends of each barrier dielectric tube are communicated, a grounding electrode tube 18 is sleeved outside each barrier dielectric tube, the grounding electrode tubes are in conductive connection through a conductive plate 24, the front connecting frame and the rear connecting frame are respectively fixed on the outer sides of the front insulating plate and the rear insulating plate through the matching of an insulating column 22 and an insulator 23, the front connecting frame and the rear connecting frame are respectively, the rear connecting frame are both transverse connecting strips and longitudinal connecting strips, high-voltage electrodes are arranged in the grid tubes, the high-voltage discharge electrodes are connected with the high-voltage discharge wires to form a high-voltage discharge region, and the high-voltage discharge region is connected with the high-voltage discharge region through a high-voltage conducting wire, and the high-voltage discharge region, and the high-voltage conducting wire, and the high-voltage electrode connecting region, and the high-voltage discharge region is formed by the high-voltage discharge region; the plasma airflow uniform distribution mechanism is arranged in the sterilization chamber and used for uniformly distributing plasma airflow in the ionization chamber and then introducing the plasma airflow into the sterilization chamber, the plasma airflow uniform distribution mechanism is longitudinally arranged at intervals, the plasma airflow uniform distribution mechanism comprises a plurality of plasma airflow pipes 25 (shown in figures 7-10) which are distributed side by side, one end of each plasma airflow pipe is fixedly connected with and sealed by a third partition plate, the other end of each plasma airflow pipe is fixedly connected with and communicated with the ionization chamber by a second partition plate, a guide cylinder 30 which is in a circular truncated cone shape and is communicated with two ends of each guide cylinder is fixed between each fixed plate and the corresponding second partition plate, a small-diameter opening of each guide cylinder is communicated with the corresponding plasma airflow pipe, a large-diameter opening of each guide cylinder is communicated with the ionization chamber, and each plasma airflow pipe is communicated with the ionization chamber through each guide cylinder; the upper side and the lower side of the plasma airflow pipe are axially provided with an air distribution port 26, a V-shaped baffle 27 which is symmetrical up and down is arranged between the adjacent plasma airflow pipes in the same plasma airflow uniform distribution mechanism along the axial direction, the air distribution port on the adjacent plasma airflow pipes in the same plasma airflow uniform distribution mechanism is positioned between the left and right adjacent V-shaped baffles, two ends of the V-shaped baffle are respectively and fixedly sealed with a second baffle and a third baffle, the inner walls of the air distribution port positioned at two sides of the plasma airflow pipe in the axial direction are inclined planes, so that the air distribution port forms an inside-outside flaring structure, and the outer inclined plane of the V-shaped baffle and the inner wall of the air distribution port adjacent to the inclined plane are coplanar to form a flow guide surface 28 together; a stainless steel wire mesh tray 11 is placed on the V-shaped baffle plate positioned on the upper layer.
The operation process and principle of the invention are as follows: the working gas is sent into the air inlet chamber through the air inlet pipe and then enters the ionization chamber through the air inlet hole; when the flowing working gas continuously and stably passes through a plasma generating area through discharge, the working gas is ionized under the action of high pressure to generate low-temperature plasma so as to form plasma gas flow; the plasma airflow is introduced into each plasma airflow pipe through the guide cylinder, is uniformly sprayed out from the air distribution port along the guide surface to the upper part and the lower part of the plasma airflow pipe, is uniformly distributed in the sterilization chamber, and is used for sterilizing marine products placed on the stainless steel wire mesh tray; the plasma gas flow in the sterilizing chamber can enter the gas outlet chamber through the gas outlet hole to be concentrated and is discharged by the gas outlet pipe.
The above-described embodiment is a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a marine product low temperature low plasma sterilization equipment that keeps fresh, a serial communication port, including box (1), the inner space of box is separated by first baffle (2), second baffle (3) and third baffle (4) that turn right from a left side and put in proper order and is formed into mutually independent air inlet chamber (5), ionization chamber (6), sterilization chamber (7) and air outlet chamber (8), the air inlet chamber is linked together through inlet port (9) that set up on first baffle with the ionization chamber, is connected with intake pipe (10) on the lateral wall of air inlet chamber, be equipped with the ordinary pressure low temperature plasma generating device who is used for producing the plasma air current in the ionization chamber, be equipped with the plasma air current equipartition mechanism that is used for introducing the sterilization chamber behind the plasma air current equipartition in the ionization chamber, plasma air current equipartition mechanism sets up along vertical interval, and has put stainless steel wire net tray (11) above plasma air current equipartition mechanism, and air outlet chamber are linked together through venthole (12) that set up on the third baffle, even have outlet duct (13) on the lateral wall of air outlet chamber.
2. A low-temperature low-plasma sterilization and preservation device for seafood, according to claim 1, characterized in that the normal-pressure low-temperature plasma generation device comprises a front insulating plate (14) and a rear insulating plate (15), the front insulating plate and the rear insulating plate are sequentially arranged in the ionization chamber along the air inlet direction, the edges of the front insulating plate and the rear insulating plate are hermetically fixed with the inner wall surface of the ionization chamber, and a plurality of dielectric barrier discharge units are arranged between the front insulating plate and the rear insulating plate.
3. A seafood low-temperature low-plasma sterilization and preservation device according to claim 2, wherein the dielectric barrier discharge unit comprises a high voltage electrode (16) and a barrier dielectric tube (17), the barrier dielectric tube is fixed between the front insulating plate and the rear insulating plate, two ends of the barrier dielectric tube are communicated, a grounding electrode tube (18) is sleeved outside the barrier dielectric tube, the high voltage electrode is arranged in the barrier dielectric tube, a gap between the barrier dielectric tube and the high voltage electrode forms a discharge plasma generation area (19), the high voltage electrode is connected with a high voltage power supply through a wire, and the grounding electrode tube is led out and grounded through a wire.
4. A low-temperature low-plasma sterilization and preservation device for marine products according to claim 3, further comprising a front connection frame (20) and a rear connection frame (21), wherein the front connection frame and the rear connection frame are respectively fixed on the outer sides of the front insulation board and the rear insulation board in an insulation manner through matching of an insulation column (22) and an insulator (23), two ends of the high-voltage electrode are respectively in conductive connection with the front connection frame and the rear connection frame, and the high-voltage electrode is connected with a high-voltage power supply through the front connection frame or the rear connection frame by a wire.
5. A seafood low-temperature low-plasma sterilization and fresh-keeping apparatus according to claim 4, wherein said front connection frame and said rear connection frame are both a grid frame composed of horizontal connection bars and vertical connection bars.
6. A low-temperature low-plasma sterilization and fresh-keeping apparatus for marine products according to claim 3, wherein said grounding electrode tubes are electrically connected through an electrically conductive plate (24), and the grounding electrode tubes are led out of the ground through the electrically conductive plate by a wire.
7. A low-temperature low-plasma sterilization and fresh-keeping device for marine products according to claim 1, wherein the plasma airflow uniform distribution mechanism comprises a plurality of plasma airflow pipes (25) which are distributed side by side, one end of each plasma airflow pipe is fixedly connected and sealed with a third partition plate, the other end of each plasma airflow pipe is fixedly connected with a second partition plate and communicated with the ionization chamber, the upper side and the lower side of each plasma airflow pipe are axially provided with air distribution ports (26), vertically symmetrical V-shaped baffle plates (27) are axially arranged between the adjacent plasma airflow pipes in the same plasma airflow uniform distribution mechanism, the air distribution ports on the adjacent plasma airflow pipes in the same plasma airflow uniform distribution mechanism are positioned between the left and right adjacent V-shaped baffle plates, and the two ends of each V-shaped baffle plate are respectively fixedly sealed with the second partition plate and the third partition plate.
8. A cryogenic low-plasma sterilization and fresh-keeping device for seafood, according to claim 7, wherein the inner walls of the gas distribution openings on both sides of the plasma gas flow tube in the axial direction are inclined planes, so that the gas distribution openings form a flaring structure from inside to outside, and the outer inclined planes of the V-shaped baffles and the inner walls of the adjacent gas distribution openings which are inclined planes are coplanar to form a flow guide plane (28).
9. A low-temperature low-plasma sterilization and fresh-keeping device for marine products according to claim 7, wherein a fixing plate (29) is disposed between the normal-pressure low-temperature plasma generating device and the second partition plate, a circular truncated cone-shaped guide cylinder (30) having two through ends is disposed between the fixing plate and the second partition plate, a small diameter opening of the guide cylinder is communicated with a plasma airflow pipe corresponding to the guide cylinder, and a large diameter opening of the guide cylinder is communicated with the ionization chamber.
10. A seafood low-temperature low-plasma sterilization and preservation device according to claim 9, wherein a box door (31) is provided on the side of the box body corresponding to the sterilization chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210979015.1A CN115428824A (en) | 2022-08-16 | 2022-08-16 | Marine product low temperature low plasma sterilization equipment that keeps fresh |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210979015.1A CN115428824A (en) | 2022-08-16 | 2022-08-16 | Marine product low temperature low plasma sterilization equipment that keeps fresh |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115428824A true CN115428824A (en) | 2022-12-06 |
Family
ID=84243445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210979015.1A Pending CN115428824A (en) | 2022-08-16 | 2022-08-16 | Marine product low temperature low plasma sterilization equipment that keeps fresh |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207085649U (en) * | 2017-06-27 | 2018-03-13 | 中国汽车工业工程有限公司 | Module occurs for a kind of cold plasma |
| KR20190008632A (en) * | 2017-07-17 | 2019-01-25 | 한국기계연구원 | Plasma sterlizer |
| CN208671572U (en) * | 2018-08-10 | 2019-03-29 | 杭州民泰中药饮片有限公司 | A kind of sterilizing and stoving device of the prepared slices of Chinese crude drugs |
| CN111066871A (en) * | 2019-12-26 | 2020-04-28 | 河南科技学院 | Continuous low-temperature plasma sterilization device for fish surface |
| CN212697492U (en) * | 2020-07-30 | 2021-03-16 | 浙江大学 | Low-temperature plasma gas sterilization device used after fruit and vegetable picking |
| CN214386479U (en) * | 2021-02-02 | 2021-10-15 | 宁波市第一医院 | Even bed hair of generating heat is dried and is used stoving cap |
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- 2022-08-16 CN CN202210979015.1A patent/CN115428824A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207085649U (en) * | 2017-06-27 | 2018-03-13 | 中国汽车工业工程有限公司 | Module occurs for a kind of cold plasma |
| KR20190008632A (en) * | 2017-07-17 | 2019-01-25 | 한국기계연구원 | Plasma sterlizer |
| CN208671572U (en) * | 2018-08-10 | 2019-03-29 | 杭州民泰中药饮片有限公司 | A kind of sterilizing and stoving device of the prepared slices of Chinese crude drugs |
| CN111066871A (en) * | 2019-12-26 | 2020-04-28 | 河南科技学院 | Continuous low-temperature plasma sterilization device for fish surface |
| CN212697492U (en) * | 2020-07-30 | 2021-03-16 | 浙江大学 | Low-temperature plasma gas sterilization device used after fruit and vegetable picking |
| CN214386479U (en) * | 2021-02-02 | 2021-10-15 | 宁波市第一医院 | Even bed hair of generating heat is dried and is used stoving cap |
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