CN114668096A - Plasma low-pressure high-temperature steam food preservation equipment - Google Patents
Plasma low-pressure high-temperature steam food preservation equipment Download PDFInfo
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- CN114668096A CN114668096A CN202210431003.5A CN202210431003A CN114668096A CN 114668096 A CN114668096 A CN 114668096A CN 202210431003 A CN202210431003 A CN 202210431003A CN 114668096 A CN114668096 A CN 114668096A
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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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/16—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials
- A23L3/165—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating loose unpacked materials in solid state
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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
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/26—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating
- A23L3/263—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by irradiation without heating with corpuscular or ionising radiation, i.e. X, alpha, beta or omega radiation
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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
- A23L5/21—Removal of unwanted matter, e.g. deodorisation or detoxification by heating without chemical treatment, e.g. steam treatment, cooking
Abstract
The invention discloses plasma low-pressure high-temperature steam food fresh-keeping equipment which comprises a machine body, wherein the machine body is provided with an air inlet chamber, a steam generating chamber, a heat exchange chamber and a fresh-keeping chamber, the air inlet chamber is arranged on the inner side of the steam generating chamber, an air inducing device is arranged in the air inlet chamber, a steam generating device is arranged in the steam generating chamber, the steam generating chamber is provided with an automatic steam exhaust device communicated with the air inlet chamber, a plasma generating device is arranged between the air inlet chamber and the heat exchange chamber and used for generating plasma, and the plasma enters the fresh-keeping chamber through the heat exchange chamber under the guiding action of the air inducing device. The invention can keep fresh by locking water, keeps the water and nutrition of the food not to lose to the maximum extent and greatly prolongs the fresh-keeping period. According to the invention, nitrogen elements related to chlorophyll in the food materials are effectively reserved through a plasma control technology, and meanwhile, oxygen elements in the food materials are captured and converted into water vapor through high-energy hydrogen ions, so that the interior of the food materials is deoxidized, and the original delicate flavor of food is effectively prolonged.
Description
Technical Field
The invention relates to the technical field of food processing, in particular to plasma low-pressure high-temperature steam food preservation equipment.
Background
With the improvement of living standard of people, people pay more and more attention to food safety and food quality. The food is easily polluted by microorganisms in the production process, and the food is finally rotten and deteriorated. Modern food storage and preservation mostly adopt methods such as freezing, air conditioning, chemical preservative, radiation and the like. The freezing and air-conditioning preservation method has the defects of large investment, more matched power equipment and detection equipment, difficulty in inhibiting the growth of the mould and eliminating residual medicaments, and difficulty in causing water loss of food and failing to achieve the purpose of preservation. The chemical preservatives are mainly added with chemical agents such as formaldehyde, sulfite, sodium hypochlorite and the like, and have a serious problem of drug residue. The radiation fresh-keeping method has large investment, the radiation technology is not easy to be controlled strictly, the radiation fresh-keeping method is not easy to be popularized, and once the dosage is excessive, the radiation fresh-keeping method can cause radioactive pollution to a certain degree and harm to human bodies, so the application of the radiation fresh-keeping method is limited.
The hot research problem in the field of food safety and food preservation is how to rapidly and effectively kill food-borne pathogenic bacteria on the surface of food without obviously changing the quality of the food in order to meet the requirements of people on the safety and the quality of the food. The traditional heat processing has obvious defects in the field of food preservation, the chemical properties of agricultural products are easily changed by heating, and although the sterilization is successful, irreversible influence is also caused on food.
The low-temperature plasma freshness-retaining sterilization technology is a brand-new food processing technology, and can produce various active particles by means of collision of high-energy electrons excited in low-temperature plasma and gas molecules, so that it has obvious effect for retaining freshness of food. The prominent expression is as follows: has strong control effect on fungi and bacteria diseases and has certain inhibiting and killing effect on viruses. Most importantly, no pollutant is introduced in the process of low-temperature plasma preservation and sterilization, and the processed food is a completely green and environment-friendly product. However, most of the existing low-temperature plasma technologies are still in the research and development stage, and a small amount of equipment for food preservation and sterilization by adopting the low-temperature plasma technology has many defects, such as complex equipment design, high use cost and poor preservation effect.
Disclosure of Invention
The invention aims to provide a plasma low-pressure high-temperature steam food preservation device, which solves the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a plasma low pressure high temperature steam food preservation equipment, includes the organism, the organism is equipped with inlet chamber, steam generation room, heat transfer room and fresh-keeping room, the inlet chamber sets up in steam generation room's inboard, is equipped with the induced air device in the inlet chamber, the steam generation indoor portion is equipped with steam generator, and steam generation room is equipped with the automatic steam exhaust device with the inlet chamber intercommunication, be equipped with plasma generator between inlet chamber and the heat transfer room, plasma generator is used for producing plasma, and plasma gets into in the fresh-keeping room through the heat transfer room under the guide effect of induced air device.
As an alternative structure or supplementary design of the above technical solution, the automatic steam exhaust device includes a housing, the housing is provided with an air inlet, a first exhaust hole and a second exhaust hole, the air inlet is communicated with the steam generation chamber, ends of the first exhaust hole and the second exhaust hole are respectively provided with a fan-shaped nozzle and a horn-shaped nozzle, a housing cavity is arranged inside the housing, the housing cavity is respectively communicated with the air inlet, the first exhaust hole and the second exhaust hole, an elastic sealing mechanism is arranged between the housing cavity and the air inlet, and the elastic sealing mechanism is used for controlling the on-off of the air inlet and the housing cavity according to the pressure of the steam generation chamber.
As an alternative structure or a supplementary design of the above technical solution, the steam flow direction of the fan-shaped nozzle is consistent with the gas flow direction of the gas inlet chamber, and the steam flow direction of the second exhaust hole is perpendicular to the gas flow direction of the gas inlet chamber.
As an alternative structure or supplementary design of the technical scheme, the elastic sealing mechanism comprises a sealing ball and a compression spring, one end of the compression spring is connected with the inner wall of the accommodating cavity, and the other end of the compression spring is connected with the sealing ball, so that the sealing ball seals the air inlet hole.
As an alternative structure or a supplementary design of the technical scheme, an arc-shaped sealing surface matched with the sealing ball is arranged at the end part of the air inlet hole, and the fan-shaped angle of the fan-shaped nozzle is 30-160 degrees.
As an alternative structure or supplementary design of the above technical scheme, a piston is arranged in the steam generation chamber, a first cavity and a second cavity are respectively arranged on two sides of the piston, limit stop rings adapted to the piston are respectively arranged in the first cavity and the second cavity, a communicating pipe is arranged between the first cavity and the second cavity, a switch control valve is arranged on the communicating pipe, a steam generation device is arranged in the first cavity, an exhaust valve is arranged in the second cavity, and the exhaust valve is used for releasing steam of the second cavity, so that the piston compresses the second cavity, and the pressure of the first cavity is reduced.
As an alternative structure or a supplementary design of the above technical solution, the steam generating device includes an electric heating tube, the electric heating tube is disposed at the bottom of the steam generating chamber, and the electric heating tube is used for heating pure water in the steam generating chamber to generate steam.
As an alternative structure or a supplementary design of the above technical solution, the air inlet chamber includes an air inlet channel and a spiral mixing channel which are communicated with each other, one end of the air inlet channel is provided with an air purifying device, the other end of the air inlet channel is communicated with the spiral mixing channel, and the spiral mixing channel is used for uniformly mixing the gas entering from the air inlet channel and the steam discharged from the steam generating chamber.
As an alternative structure or supplementary design of the technical scheme, the induced draft device comprises an induced draft fan, the induced draft fan is arranged in the air inlet channel, and a heating device is arranged in the air inlet channel.
As an alternative structure or supplementary design of the technical scheme, the heat exchange chamber comprises a water storage cavity, a heat exchange channel is arranged on the inner side of the water storage cavity, the heat exchange channel is in an inverted cone shape, two ends of the heat exchange channel are respectively communicated with the air inlet chamber and the fresh-keeping chamber, a vortex-shaped heat exchange tube is arranged in the heat exchange channel, one end of the heat exchange tube is communicated with the water storage cavity, and the other end of the heat exchange tube is communicated with the steam generation chamber.
The invention has the beneficial effects that:
compared with the traditional food preservation technology, the invention has more technical advantages, which comprise: the water is locked for fresh keeping, so that the water and nutrition of the food are kept to the maximum extent without loss, the original taste of the food is restored, and the fresh-keeping period is greatly prolonged; the color is locked, so that the oxidation resistance can be realized, and the generation of melanin is inhibited, so that the food material still has the same color after being cooked and processed; remove fishy smell and purine, and provide a real healthy nutritional meal. According to the invention, pure water is used as a base, nitrogen elements related to chlorophyll in the food materials are effectively reserved through an advanced ion control technology, and oxygen elements in the food materials are captured and converted into water vapor through high-energy hydrogen ions, so that the interior of the food materials is deoxidized, and the original delicate flavor of food is effectively prolonged.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic perspective view of an automatic steam exhaust apparatus according to an embodiment of the present invention;
fig. 3 is a schematic view of the internal structure of the automatic steam exhaust apparatus according to the embodiment of the present invention.
In the figure: 1-body; 2-a fresh-keeping chamber; 3-an air inducing device; 4-a steam generating device; 5-automatic steam exhaust device; 6-a plasma generating device; 7-a housing; 8-air inlet holes; 9-a first venting aperture; 10-a second vent; 11-a fan-shaped nozzle; 12-a trumpet-shaped nozzle; 13-a sealing ball; 14-a compression spring; 15-a piston; 16-a first cavity; 17-a second cavity; 18-a communicating tube; 19-on-off control valve; 20-an exhaust valve; 21-an intake passage; 22-a spiral mixing channel; 23-an air purification device; 24-a water storage cavity; 25-heat exchange tube.
Detailed Description
Examples
As shown in fig. 1-3, the present embodiment provides a plasma low-pressure high-temperature steam food fresh-keeping apparatus, which includes an apparatus body 1, the apparatus body 1 is provided with an air inlet chamber, a steam generation chamber, a heat exchange chamber and a fresh-keeping chamber 2, the air inlet chamber and the steam generation chamber are disposed at the bottom of the apparatus body 1, the heat exchange chamber is disposed at the top of the steam generation chamber, and the fresh-keeping chamber 2 is disposed at the top of the heat exchange chamber. The fresh-keeping chamber 2 is provided with a cabinet door which is provided with an observation window, and food can be put into the fresh-keeping chamber 2 by opening the cabinet door.
The steam inlet chamber is arranged on the inner side of the steam generating chamber and is cylindrical, the steam generating chamber is annularly arranged on the outer side of the steam inlet chamber, the steam generating chamber can generate steam, and the temperature of the steam is higher than the temperature of gas in the steam inlet chamber, so that the heat of the steam generating chamber can be absorbed by the gas in the steam inlet chamber conveniently.
An air inducing device 3 is arranged in the air inlet chamber, and the air inducing device 3 can guide the outside air into the air inlet chamber. The steam generating chamber is internally provided with a steam generating device 4, the steam generating chamber is provided with an automatic steam exhaust device 5 communicated with the air inlet chamber, the steam generating device 4 can generate steam, and when the steam reaches a certain pressure value, the steam of the steam generating chamber is exhausted through the automatic steam exhaust device 5 and then is mixed with the air in the air inlet chamber. And a plasma generating device 6 is arranged between the air inlet chamber and the heat exchange chamber, the plasma generating device 6 is used for generating plasma, and the plasma enters the fresh-keeping chamber 2 through the heat exchange chamber under the guiding action of the air inducing device 3. After the steam is mixed with the air in the air inlet chamber, plasma is generated under the action of the plasma generating device 6, enters the heat exchange chamber, exchanges heat and then enters the fresh-keeping chamber 2, and the fresh-keeping treatment of the food is realized.
Compared with the traditional food preservation technology, the invention has more technical advantages, which comprise: the water is locked for fresh keeping, so that the water and nutrition of the food are kept to the maximum extent without loss, the original taste of the food is restored, and the fresh-keeping period is greatly prolonged; the color is locked, so that the oxidation resistance can be realized, and the generation of melanin is inhibited, so that the food material still has the same color after being cooked and processed; remove fishy smell and purine, and provide a real healthy nutritional meal. According to the invention, pure water is used as a base, nitrogen elements related to chlorophyll in the food materials are effectively reserved through an advanced ion control technology, and oxygen elements in the food materials are captured and converted into water vapor through high-energy hydrogen ions, so that the interior of the food materials is deoxidized, and the original delicate flavor of food is effectively prolonged.
As shown in fig. 2 and 3, in particular, the automatic steam exhaust device 5 includes a housing 7, the housing 7 is provided with an air inlet hole 8, a first exhaust hole 9 and a second exhaust hole 10, the air inlet hole 8 is provided at one end of the housing 7, and the first exhaust hole 9 and the second exhaust hole 10 are both provided at the other end of the housing 7. The air inlet hole 8 is communicated with the steam generating chamber, the shell 7 can be provided with a threaded connector, the steam generating chamber is provided with a threaded hole, and the threaded connector of the shell 7 is in threaded connection with the threaded hole. The end parts of the first exhaust hole 9 and the second exhaust hole 10 are respectively provided with a fan-shaped nozzle 11 and a horn-shaped nozzle 12, and the fan-shaped nozzle 11 and the horn-shaped nozzle 12 can enlarge the spraying range of steam, so that the steam and the air are quickly mixed. The inside chamber that holds that is equipped with of casing 7, hold the chamber and communicate with inlet port 8, first exhaust hole 9 and second exhaust hole 10 respectively, it is equipped with elastic sealing mechanism to hold between chamber and the inlet port 8, elastic sealing mechanism can be according to the break-make in pressure control inlet port 8 of steam generation room and the chamber that holds. When the pressure of the steam generating chamber reaches a certain value, the steam of the steam generating chamber enters the air inlet hole 8, the elastic sealing mechanism is pushed open, the steam enters the first exhaust hole 9 and the second exhaust hole 10 through the containing cavity, and then is sprayed out from the fan-shaped nozzle 11 and the horn-shaped nozzle 12 and is rapidly mixed with the air.
Preferably, the steam flow direction of the fan-shaped nozzle 11 is consistent with the gas flow direction of the gas inlet chamber, and the steam flow direction of the second exhaust hole 10 is perpendicular to the gas flow direction of the gas inlet chamber. A part of steam in the accommodating cavity is sprayed out through the fan-shaped nozzle 11 and flows and is mixed with air in the air inlet chamber, and the other part of steam in the accommodating cavity is sprayed out through the trumpet-shaped nozzle 12 and is mixed after the steam collides with the air in the air inlet chamber, so that the steam and the air can be quickly mixed. Furthermore, the fan-shaped angle of the fan-shaped nozzle 11 is 30-160 degrees, preferably 90 degrees, and the steam sprayed from the fan-shaped nozzle 11 can cover a certain area of the air inlet chamber, so that the mixing uniformity of the steam and the air can be accelerated.
In this embodiment, the elastic sealing mechanism comprises a sealing ball 13 and a compression spring 14, one end of the compression spring 14 is connected with the inner wall of the accommodating cavity, and the other end of the compression spring 14 is connected with the sealing ball 13 to seal the air inlet hole 8. The compression spring 14 is in a compressed state, so that the air inlet hole 8 is blocked by the sealing ball 13, when the pressure of the steam generation chamber reaches a certain value, the compression spring 14 is further compressed, the air inlet hole 8 is opened by the sealing ball 13, and the steam in the steam generation chamber is discharged; when the pressure of the steam generating chamber is reduced, the compression spring 14 is restored to deform, and the air inlet hole 8 is blocked by the sealing ball 13. The end part of the air inlet hole 8 is provided with an arc sealing surface matched with the sealing ball 13, so that the sealing effect of the sealing ball 13 on the air inlet hole 8 is ensured.
As shown in fig. 1, a piston 15 is arranged in the steam generating chamber, a first cavity 16 and a second cavity 17 are respectively arranged on two sides of the piston 15, the first cavity 16 is located at the bottom of the second cavity 17, both the first cavity 16 and the second cavity 17 are provided with limit stop rings adapted to the piston 15, and the limit stop rings of the first cavity 16 and the second cavity 17 can limit the positions of the bottom and the top of the piston 15, so that the piston 15 can move up and down within a certain range. A communicating pipe 18 is arranged between the first cavity 16 and the second cavity 17, an on-off control valve 19 is arranged on the communicating pipe 18, and the on-off control valve 19 is opened, so that the pressures in the first cavity 16 and the second cavity 17 are consistent, and the piston 15 is in a balanced state. The steam generating device 4 is arranged in the first cavity 16, the second cavity 17 is provided with a vent valve 20, and the vent valve 20 is used for releasing the steam in the second cavity 17, so that the piston 15 compresses the second cavity 17, and the pressure in the first cavity 16 is reduced. Steam in the first cavity 16 can enter the second cavity 17 through the communicating pipe 18, so that the pressure in the first cavity 16 and the pressure in the second cavity 17 are kept consistent, when the pressure in the first cavity 16 reaches a certain value, the on-off control valve 19 on the communicating pipe 18 can be closed, then the exhaust valve 20 is opened, the pressure of the second cavity 17 is rapidly reduced, the pressure in the first cavity 16 is greater than that of the second cavity 17, the piston 15 moves upwards and compresses the second cavity 17, the volume of the first cavity 16 is increased, the pressure of the first cavity 16 is reduced, the boiling point of water in the first cavity 16 can be reduced, water vapor is rapidly generated by the water, and energy consumption is reduced.
The steam generating device 4 comprises an electric heating pipe, the electric heating pipe is arranged at the bottom of the steam generating chamber, and the electric heating pipe is used for heating pure water in the steam generating chamber to generate steam. The bottom of the first chamber 16 is provided with an electric heating tube which can heat pure water in the first chamber 16 so as to generate steam.
In the present embodiment, the intake chamber includes an intake passage 21 and a spiral mixing passage 22 which are communicated with each other, one end of the intake passage 21 is provided with an air purifying device 23, the other end of the intake passage 21 is communicated with the spiral mixing passage 22, and the spiral mixing passage 22 is used for uniformly mixing the gas entering from the intake passage 21 and the steam discharged from the steam generating chamber. The induced draft device 3 comprises an induced draft fan, the induced draft fan is arranged in the air inlet channel 21, and a heating device is arranged in the air inlet channel 21. The outside air enters the air inlet channel 21 after being purified by the air purifying device 23, then enters the spiral mixing channel 22 together with the steam discharged from the steam generating chamber to be mixed, and is treated by the plasma generating device 6 to generate plasma after being uniformly mixed.
The heat exchange chamber comprises a water storage chamber 24, a heat exchange channel is arranged on the inner side of the water storage chamber 24 and is in a reverse conical shape, two ends of the heat exchange channel are communicated with the air inlet chamber and the fresh-keeping chamber 2 respectively, a vortex-shaped heat exchange tube 25 is arranged in the heat exchange channel, one end of the heat exchange tube 25 is communicated with the water storage chamber 24, and the other end of the heat exchange tube 25 is communicated with the steam generation chamber. The water storage cavity 24 is provided with a water inlet which is connected with a pure water supply end, pure water in the water storage cavity 24 enters the heat exchange tube 25, and flows into the steam generation chamber after absorbing heat energy in the air, so that the water replenishing function of the steam generation chamber is realized, the heat energy in the air is effectively utilized, and the energy is greatly saved.
In the description of the present invention, the terms "mounted," "connected," "fixed," and the like are to be understood broadly and may be fixedly connected, detachably connected, or integrated; may be a mechanical or electrical connection; either directly or indirectly through intervening media, either internally or in any other relationship. Those skilled in the art will understand the specific meaning of the above terms in the present invention. Furthermore, the particular features, structures, etc. described in the examples can be included in at least one implementation and can be combined by one skilled in the art without conflicting therewith. The protection scope of the present invention is not limited to the above specific examples, and embodiments that can be imagined by those skilled in the art without creative efforts based on the basic technical concept of the present invention belong to the protection scope of the present invention.
Claims (10)
1. The utility model provides a plasma low pressure high temperature steam food equipment that keeps fresh, a serial communication port, includes organism (1), organism (1) is equipped with inlet chamber, steam generation room, heat transfer room and freshness protection chamber (2), the inlet chamber sets up in steam generation room's inboard, is equipped with induced air device (3) in the inlet chamber, steam generation room inside is equipped with steam generating device (4), and steam generation room is equipped with automatic steam exhaust device (5) with the inlet chamber intercommunication, be equipped with plasma generating device (6) between inlet chamber and the heat transfer room, plasma generating device (6) are used for producing plasma, and plasma gets into in freshness protection chamber (2) through the heat transfer room under the guide effect of induced air device (3).
2. The plasma low-pressure high-temperature steam food fresh-keeping device as claimed in claim 1, wherein the automatic steam exhaust device (5) comprises a shell (7), the shell (7) is provided with an air inlet hole (8), a first exhaust hole (9) and a second exhaust hole (10), the air inlet hole (8) is communicated with the steam generation chamber, the end parts of the first exhaust hole (9) and the second exhaust hole (10) are respectively provided with a fan-shaped nozzle (11) and a horn-shaped nozzle (12), a containing cavity is arranged inside the shell (7), the containing cavity is respectively communicated with the air inlet hole (8), the first exhaust hole (9) and the second exhaust hole (10), an elastic sealing mechanism is arranged between the containing cavity and the air inlet hole (8), and the elastic sealing mechanism is used for controlling the on-off of the air inlet hole (8) and the containing cavity according to the pressure of the steam generation chamber.
3. The apparatus for preserving food with low pressure and high temperature steam as claimed in claim 2, wherein the steam flow direction of the fan-shaped nozzle (11) is in accordance with the gas flow direction of the gas inlet chamber, and the steam flow direction of the second exhaust hole (10) is perpendicular to the gas flow direction of the gas inlet chamber.
4. The food fresh-keeping equipment with the plasma low pressure and the high temperature steam as claimed in claim 2, characterized in that the elastic sealing mechanism comprises a sealing ball (13) and a compression spring (14), one end of the compression spring (14) is connected with the inner wall of the containing cavity, and the other end of the compression spring (14) is connected with the sealing ball (13) so that the air inlet hole (8) is sealed by the sealing ball (13).
5. The food fresh-keeping device with plasma low pressure and high temperature steam as claimed in claim 4, characterized in that the end of the air inlet hole (8) is provided with an arc sealing surface matched with the sealing ball (13), and the fan-shaped angle of the fan-shaped nozzle (11) is 30-160 degrees.
6. The plasma low-pressure high-temperature steam food fresh-keeping equipment according to claim 1, characterized in that a piston (15) is arranged in the steam generation chamber, a first cavity (16) and a second cavity (17) are respectively arranged on two sides of the piston (15), a limit stop ring adapted to the piston (15) is arranged in each of the first cavity (16) and the second cavity (17), a communicating pipe (18) is arranged between the first cavity (16) and the second cavity (17), a switch control valve (19) is arranged on each communicating pipe (18), a steam generation device (4) is arranged in each of the first cavity (16), an exhaust valve (20) is arranged in each of the second cavities (17), and each exhaust valve (20) is used for releasing steam of the second cavity (17) so that the piston (15) compresses the second cavity (17) to reduce the pressure of the first cavity (16).
7. The plasma low-pressure high-temperature steam food fresh-keeping apparatus according to claim 1, wherein the steam generating device (4) comprises an electric heating tube, the electric heating tube is arranged at the bottom of the steam generating chamber, and the electric heating tube is used for heating pure water in the steam generating chamber to generate steam.
8. The food fresh-keeping device by using the plasma low-pressure high-temperature steam as claimed in claim 1, wherein the air inlet chamber comprises an air inlet channel (21) and a spiral mixing channel (22) which are communicated with each other, one end of the air inlet channel (21) is provided with an air purifying device (23), the other end of the air inlet channel (21) is communicated with the spiral mixing channel (22), and the spiral mixing channel (22) is used for uniformly mixing the gas entering from the air inlet channel (21) and the steam discharged from the steam generating chamber.
9. The plasma low-pressure high-temperature steam food fresh-keeping device according to claim 8, characterized in that the air inducing device (3) comprises an induced draft fan, the induced draft fan is arranged in the air inlet channel (21), and a heating device is arranged in the air inlet channel (21).
10. The food fresh-keeping equipment adopting the plasma low-pressure high-temperature steam as claimed in claim 1, wherein the heat exchange chamber comprises a water storage chamber (24), a heat exchange channel is arranged on the inner side of the water storage chamber (24), the heat exchange channel is in an inverted cone shape, two ends of the heat exchange channel are respectively communicated with the air inlet chamber and the fresh-keeping chamber (2), a vortex-shaped heat exchange tube (25) is arranged in the heat exchange channel, one end of the heat exchange tube (25) is communicated with the water storage chamber (24), and the other end of the heat exchange tube (25) is communicated with the steam generation chamber.
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| CN202210431003.5A CN114668096A (en) | 2022-04-22 | 2022-04-22 | Plasma low-pressure high-temperature steam food preservation equipment |
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| CN202210431003.5A CN114668096A (en) | 2022-04-22 | 2022-04-22 | Plasma low-pressure high-temperature steam food preservation equipment |
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| CN114668096A true CN114668096A (en) | 2022-06-28 |
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| CN106037456A (en) * | 2016-07-25 | 2016-10-26 | 佛山市科思博科技有限公司 | Seafood steaming cabinet |
| CN208355203U (en) * | 2017-11-15 | 2019-01-11 | 佛山市顺德区美的电热电器制造有限公司 | A kind of cooking apparatus |
| DE102018204689A1 (en) * | 2018-03-27 | 2019-10-02 | BSH Hausgeräte GmbH | Method for producing a plasma-vapor mixture |
| CN108850128A (en) * | 2018-08-08 | 2018-11-23 | 深圳市奥普斯等离子体科技有限公司 | A kind of continuous preserving fruit and vegetable utilizing processing equipment of low-temperature plasma and application method |
| CN111981453A (en) * | 2020-08-20 | 2020-11-24 | 唐泽东 | Vapor output is equipped with adjustable atmospheric pressure |
| CN215110743U (en) * | 2021-05-25 | 2021-12-10 | 河北亚大汽车塑料制品有限公司 | Fuel tank steam control valve |
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