CN209403438U - A kind of nano-photo catalytic freshness preserving equipment - Google Patents

Abstract

The utility model provides a kind of nano-photo catalytic freshness preserving equipment, including shell, is provided with air inlet and air outlet on shell；Air inlet filter screen, detection control zone, plenum area, gas treatment area and gas outlet filter screen are provided in shell；Air inlet filter screen is arranged on the inside of air inlet, air inlet filter screen connecting detection control zone, and detection control zone connects plenum area, and plenum area connects gas treatment area, and gas treatment area connects gas outlet filter screen, and gas outlet filter screen is arranged on the inside of gas outlet；Detection control zone is provided with ethylene sensor and control module, and ethylene sensor is connect with control module；Plenum area is provided with blower, and adjustable baffle plate is provided between plenum area and detection control zone, and adjustable baffle plate forms air inlet；Gas treatment area is provided with ultraviolet lamp and nano-deposit glass tube, and the nano-deposit uses nano-catalytic agent film；The blower, ultraviolet lamp and adjustable baffle plate are connect with control module.

Description

A kind of nano-photo catalytic freshness preserving equipment

Technical field

The utility model belongs to agricultural products fresh-keeping apparatus field, and in particular to a kind of nano-photo catalytic freshness preserving equipment.

Background technique

The reason for causing fruits and vegetables putrid and deteriorated mainly has: temperature, controlled atmosphere environment, microbial infection, ethylene accelerate the ripening.Temperature is The most important factor of fruit vegetables storing is influenced, the reserve temperature of fruits and vegetables can have preferably been controlled by equipment such as freezers, for Climacteric type fruits and vegetables, controlled atmosphere environment are the essential conditions for influencing its storage time, can greatly prolong fruit by air conditioned storage The storage time of vegetable, for a long time, cold storing and fresh-keeping method and air control storage are that extension postharvest fruit and vegetable service life and shelf life are most effective Method, and carrying out cold storing and fresh-keeping and when air conditioned storage, microbial infection and ethylene, which accelerate the ripening to be still, to be influenced fruit vegetables storing and protect Two fresh key factors.

Mainly had using more fruits and vegetables sterilization mode at present: chemical preservative, ozone sterilization, radio sterilization.Chemistry is protected Fresh dose is to be smeared or sprayed in fruit and vegetable surfaces using chemical agent, or be placed in fruit vegetables storing room, to reach kill or inhibit fruit Microorganism in vegetable surface, inside and environment, and the purpose of gas componant in environment is adjusted, to realize the fresh-keeping of fruits and vegetables. Chemical preservative has the characteristics that use cost is low, equipment investment is small, simple and easy to do, therefore is most important fruits and vegetables sterilization at present Fresh-keeping means.But it takes place frequently due to carrying out food safety affair this year, the illegal event using nonfood grade antistaling agent repeated, and surpass Mark uses, abuses toxic side effect and residue problem existing for the phenomenon that antistaling agent very serious and chemical preservative, all makes The safety issue of chemical preservative is under suspicion.

Ozone sterilization technology is that the microorganism of fruit and vegetable surfaces is killed using the strong oxidizing property of ozone, the fungicidal spectrum of ozone compared with Width especially has the mould of stronger tolerance to have very strong killing performance to certain pathogenic bacteria and to chemosterilant.Although Ozone plays the role of the preservation and freshness of fruits and vegetables positive, but also has potential destructiveness.If the ozone concentration used is improper It can cause fruits and vegetables cellular damage, increase its permeability, cell inclusion extravasation, so that fruit-vegetable quality be caused to decline or ruin.It is smelly Oxygen also has certain harm to the health of human body.Ozone mainly influences the respiratory tract of human body, causes to be poisoned.

Radio sterilization technology is to be irradiated using γ, β, x ray and electron beam to product, to reach anti-corrosive fresh-keeping mesh A kind of physical method.Radiation energy causes gene mutation and causes cell dead by the inhereditary material of destruction pathogen cell It dies.The advantages that radio sterilization belongs to cold treatment technology, can keep food original color, but the safety of irradiated foods Property still much queried, many countries and public objection irradiated foods do not allow import, therefore radio sterilization technology is answered With being very restricted.

Ethylene is a kind of organic compound for influence plant physiology and biochemistry variation that plant tissue generates, and ethylene is as plant Hormone works to many aspects such as plant growth, aging.It will accelerate the corruption of fruits and vegetables when ethylene contents reach 0.1 × 10-6 It is rotten.For fruit vegetables storing after harvesting in the closed space such as carton or freezer, wound when along with harvesting generates a large amount of second The ethylene of alkene, accumulation be can't get rid of, and plant is stimulated to generate further amounts of ethylene, can greatly accelerate the maturation and aging of plant, To which storage quality and the service life of fruits and vegetables be greatly reduced.Therefore, the ethylene contents in fruit vegetables storing environment are removed in time, can be had The storage fresh-keeping effect of the raising fruits and vegetables of effect, Shelf-life service life.Control ethylene method mainly have ethylene scavenger method and Ethylene inhibitor method.Ethylene scavenger divides physical absorbent, oxidized form adsorbent, catalyst type adsorbent.Physical absorbent is main For substances such as active carbon, minerals with porous structure, belong to weakly stable, be easily desorbed, to adsorbate non-selectivity, is easily saturated, It is limited to ethylene absorption amount.Oxidized form adsorbent mainly has potassium permanganate, Liquor Hydrogen Peroxide etc., this kind of adsorbent be current application compared with A kind of more ethylene scavengers.But potassium permanganate has certain toxicity, and manganese ion easily causes environmental pollution, and Liquor Hydrogen Peroxide has strong rotten Erosion effect, therefore the safety of this kind of ethylene scavenger is poor.Catalyst type ethylene scavenger is with specific selectively gold Belong to, the oxygenolysis of metal oxide or inorganic acid catalysis ethylene, this catalytic is usually relatively slow, is only suitable for taking off Except the endogenous ethylene of low concentration.In recent years, ethylene during becoming control fruit vegetables storing as the ethylene inhibitor of representative using 1-MCP The research hotspot of influence.1-MCP is also known as 1- methyl cyclopropene, it irreversible can act on ethylene receptor, blocks itself and ethylene Normal combination extend the shelf life of fruits and vegetables to inhibit a series of biochemical reactions of fruits and vegetables after-ripening.At 1-MCP Fruits and vegetables are managed, extraordinary effect is played to inhibition fruits and vegetables after-ripening.But due to 1-MCP ethylene receptor is blocked it is irreversible Property, it will appear the situation of after-ripening difficulty using the fruits and vegetables that 1-MCP is handled, affect the sale quality of fruit and vegetable food.

This is the deficiencies in the prior art, therefore, in view of the above-mentioned drawbacks in the prior art, provides a kind of nano-photo catalytic guarantor Fresh equipment, is necessary.

Summary of the invention

It accelerates the ripening with ethylene as causing fruits and vegetables putrid and deteriorated the purpose of this utility model is that being infected for mentioned microorganism Numerous reasons in two, and existing fruits and vegetables sterilization mode and control the incomplete defect of ethylene mode, one kind is provided Nano-photo catalytic freshness preserving equipment, to solve the above technical problems.

To achieve the above object, the utility model provides following technical scheme:

A kind of nano-photo catalytic freshness preserving equipment, including shell are provided with air inlet and air outlet on shell；

Air inlet filter screen, detection control zone, plenum area, gas treatment area and gas outlet filtering are provided in shell Net；

Air inlet filter screen is arranged on the inside of air inlet, air inlet filter screen connecting detection control zone, and detection control zone connects Plenum area is connect, plenum area connects gas treatment area, and gas treatment area connects gas outlet filter screen, and filter screen setting in gas outlet is going out On the inside of port；

Detection control zone is provided with ethylene sensor and control module, and ethylene sensor is connect with control module；

Plenum area is provided with blower, is provided with adjustable baffle plate, adjustable baffle plate shape between plenum area and detection control zone At air inlet；

Gas treatment area is provided with ultraviolet lamp and nano-deposit glass tube, and the nano-deposit is thin using nanocatalyst Film；

The blower, ultraviolet lamp and adjustable baffle plate are connect with control module.

On the one hand, the photocatalytic of nano-catalytic agent film the ethylene of generation can be resolved into carbon dioxide and Water；On the other hand, nano-catalytic agent film generates the very strong living radical of oxidisability under light illumination, these free radicals can oxygen Change the intracorporal protein of some microorganisms, to make its protein denaturation, the growth of microorganism is inhibited even to kill microorganism, because This has inhibition or killing effect to the microorganism in environment, compared with common fungicide, nanometer titanium dioxide antibiotic sterilization effect Fruit is rapid, and sterilizing is thorough.It can be seen that nano-catalytic agent film is applied to preserving fruit and vegetable utilizing, the second of fruits and vegetables generation can have both been removed Alkene, and can inhibit or kill pathogen, it to fruits and vegetables after-ripening is inhibited, delays senescence, prevents corruption caused by pathogen infection from becoming Matter has extraordinary effect.In addition, nano-catalytic agent film has extraordinary effect to musty, the peculiar smell in removal air Fruit is highly suitable to be applied for the environment such as freezer.Nano-catalytic agent film is plated on glass tube, is irradiated and is excited using ultraviolet lamp tube Catalysis reaction occurs.The glass tube for being coated with nano-catalytic agent film is forced air over using blower, by the ethylene in air point Solution is carbon dioxide and water, and microorganism is killed.

Fan operation makes to generate leeway between air inlet and air outlet, and air enters equipment by air inlet, and air inlet is made a slip of the tongue Strainer was mainly used for the bulky grain suspended matter in air filtering.Ultraviolet lamp issues ultraviolet light, and ultraviolet light is coated with nano-catalytic The glass tube of agent film makes nano-catalytic agent film enter excitation state, when air passes through glass tube, the nanometer in excitation state Catalyst film can be killed with ethylene or the microbial reaction being attached in little particle by ethylene decomposition, while by microorganism.Only Air after change is discharged by gas outlet, and gas outlet filter screen is mainly used for the nano-catalytic agent film that filtering falls off on a small quantity.

Adjustable baffle plate, for adjusting air inlet size.

Further, air inlet, air inlet filter screen, detection control zone, plenum area, gas treatment area, gas outlet filtering Net and gas outlet are set gradually from top to bottom.

Further, the ethylene sensor is arranged on the upside of air inlet.Ethylene sensor is arranged on the upside of air inlet just The concentration of ethylene in detection air in time.

Further, control module includes automatic controller, and automatic controller is connected with relay, motor and stroke and opens It closes, automatic controller is also connect with ethylene sensor；

Relay is connect with blower and ultraviolet lamp, and motor is connect with adjustable baffle plate, the adjustable gear of travel switch setting On plate.

Further, the blower includes the first blower, the second blower, third blower, four fan device and the 5th blower；

The relay includes the first relay, the second relay, third relay, the 4th relay, the 5th relay And ultraviolet lamp relay；

First relay is connect with the first blower, and the second relay is connect with the second blower, third relay and third wind Machine connection, the 4th relay connect with four fan device, and the 5th relay (16.5) is connect with the 5th blower, ultraviolet lamp relay and Ultraviolet lamp connection；

First relay, the second relay, third relay, the 4th relay, the 5th relay and ultraviolet lamp relay Device is connect with automatic controller.

Further, the motor includes the first motor and the second motor, the first motor and the second motor It is connect with automatic controller, the first motor is connected with the first runner, and the second motor is connected with the second runner；

The adjustable baffle plate includes the first fixed plate, the first movable plate, the second fixed plate and the second movable plate；

First fixed plate one end is fixedly installed inside the shell, and the first fixed plate other end is opposite with the second fixed plate to be set It sets, first sliding groove is provided in the first fixed plate, the first sliding block is provided in first sliding groove, the first sliding block is fixed on the first activity On plate, the first push rod is additionally provided on the first sliding block, the first push rod other end is arranged at the first runner edge；

Second fixed plate one end is fixedly installed inside the shell, and the second fixed plate other end is opposite with the first fixed plate to be set It sets, second sliding slot is provided in the second fixed plate, the second sliding block is provided in second sliding slot, the second sliding block is fixed on the second activity On plate, the second push rod is additionally provided on the second sliding block, the second push rod other end is arranged at the second runner edge；

Region of the air inlet between the first movable plate and the second movable plate.First movable plate of adjustable baffle plate and second Air inlet is opened size and is associated with blower starting quantity between movable plate, and when ethylene concentration is low, automatic controller only starts one A blower, while the area of adjustable baffle plate air inlet is adjusted to minimum；When ethylene concentration is big, automatic controller will be adjustable The area for saving the air inlet of baffle increases, while starting more multi fan.

Further, first fixed plate is identical as the second fixed plate length, first movable plate and the second activity Plate length is identical；

The travel switch includes first position switch, second position switch, the third place switch and the 4th position switch；

It is sliding that first position switch, second position switch, the third place switch and the 4th position switch are arranged at first On slot, the side opposite with the second fixed plate is arranged in first position switch, and the 4th position switch is arranged in opposite with shell Side, between first position switch and the 4th position switch, the third place switch is arranged second for second position switch setting Between position switch and the 4th position switch；

First position switch, second position switch, the third place switch and the 4th position switch are and automatic controller Connection.Travel switch is arranged in first sliding groove, and the first movable plate is identical as the second movable plate length, and moves simultaneously, passes through Travel switch in first sliding groove detects and controls the movement position of the first movable plate and the second movable plate.

Further, the quantity of the ultraviolet lamp is several, and the quantity of the nano-deposit glass tube is several.

Further, the air inlet filter screen and gas outlet filter screen are all made of PP cotton material, non-woven fabrics material or glass Glass cotton material；

The nano-catalytic agent film uses nano-titanium dioxide, nano silver or nano zine oxide；

The glass tube uses quartz glass material or simple glass material.The photocatalysis performance of nano-catalytic agent film can It is illustrated with the band theory of semiconductor.In semiconductor energy band structure, the low-energy zone occupied by valence electron claims valence band (to be called full Band), asked price band edge in its highest energy；The higher energy band, that is, excitation state of that adjacent with valence band claims conduction band, its most low energy Grade is conduction band edge.The energy level difference of conduction band edge and valence band edge is exactly forbidden bandwidth Eg, also known as band-gap energy.By taking nano TiO 2 as an example, The electronic structure feature of TiO2 is a full valence band and an empty conduction band, and the forbidden bandwidth of anatase titanium dioxide TiO2 is 3.2eV, by When light irradiates, when meeting or exceeding its band-gap energy (nm of λ < 400) such as photon energy, valence-band electrons are excited to conduction band and form sky One electronics pair of cave, under electric field action, electronics is separated with hole, moves to the different location of particle surface.Hole can incite somebody to action OH the and H2O molecular oxidation of titanium dioxide surface is adsorbed on into the hydroxyl radical free radical of strong oxidizing property.Living radical has very high Energy, energy each type organic of oxygenolysis, ultimately generates carbon dioxide and water.This function is very useful for preserving fruit and vegetable utilizing 's.

Further, the automatic controller uses single-chip microcontroller or PLC controller.Automatic controller can be set as needed Ethylene threshold value or adjustable baffle plate open size, realize the intelligentized control method of equipment.

The utility model has the beneficial effects that:

The utility model device is small in size, and the service life is long, highly-safe to environment and food without any pollution, passes through ethylene Sensor and automatic controller realize the real-time monitoring and intelligentized control method of ethylene gas, and equipment energy consumption is low, can be applied to fruits and vegetables Preservation and freshness environment has huge economic benefit and social benefit.

In addition, the utility model design principle is reliable, structure is simple, has very extensive application prospect.

It can be seen that the utility model compared with prior art, has substantive features and progress, the beneficial effect implemented Fruit is also obvious.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the utility model control module connection schematic diagram；

Fig. 3 is the utility model control module connection schematic diagram two；

Fig. 4 is the utility model adjustable baffle plate structural schematic diagram；

Wherein, 1- air inlet；The gas outlet 2-；3- air inlet filter screen；4- detects control zone；The plenum area 5-；At 6- gas Manage area；The gas outlet 7- filter screen；8- ethylene sensor；9- control module；10- blower；10.1- the first blower；10.2- the second wind Machine；10.3- third blower；10.4- four fan device；The 5th blower of 10.5-；11- adjustable baffle plate；12- air inlet；13- is ultraviolet Lamp；14- nano-deposit glass tube；15- automatic controller；16- relay；16.1- the first relay；16.2- the second relay； 16.3- third relay；The 4th relay of 16.4-；The 5th relay of 16.5-；16.6- ultraviolet lamp relay；17- motor； 17.1- the first motor；17.2- the second motor；18- travel switch；18.1- first position switchs；18.2- the second position is opened It closes；18.3- the third place switchs；The 4th position switch of 18.4-；19.1- the first runner；19.2- the second runner；20.1- first Fixed plate；20.2- the second fixed plate；21.1- the first movable plate；21.2- the second movable plate；22.1- first sliding groove；22.2- Two sliding slots；23.1- the first sliding block；23.2- the second sliding block；24.1- the first push rod；24.2- the second push rod.

Specific embodiment:

It is specific below in conjunction with this to enable the purpose of this utility model, feature, advantage more obvious and understandable The technical solution in the utility model is clearly and completely described in attached drawing in embodiment.

As depicted in figs. 1 and 2, the utility model provides a kind of nano-photo catalytic freshness preserving equipment, including shell, sets on shell It is equipped with air inlet 1 and gas outlet 2；

Air inlet filter screen 3, detection control zone 4, plenum area 5, gas treatment area 6 and outlet is provided in shell to make a slip of the tongue Strainer 7；Air inlet 1, air inlet filter screen 3, detection control zone 4, plenum area 5, gas treatment area 6, gas outlet filter screen 7 and Gas outlet 2 is set gradually from top to bottom；

The setting of air inlet filter screen 3 is in 1 inside of air inlet, 3 connecting detection control zone 4 of air inlet filter screen, detection control Area 4 connects plenum area 5, and plenum area 5 connects gas treatment area 6, and gas treatment area 6 connects gas outlet filter screen 7, gas outlet filtering The setting of net 7 is in 2 inside of gas outlet；The air inlet filter screen 3 and gas outlet filter screen 7 are all made of PP cotton material, non-woven fabrics material Matter or mineral wool material；

Detection control zone 4 is provided with ethylene sensor 8 and control module 9, and ethylene sensor 8 is connect with control module 9；

Plenum area 5 is provided with blower 10, is provided with adjustable baffle plate 11 between plenum area 5 and detection control zone 4, is adjusted Baffle 11 forms air inlet 12；The setting of ethylene sensor 8 is in 12 upside of air inlet；

Gas treatment area 6 is provided with ultraviolet lamp 13 and nano-deposit glass tube 14, and the nano-deposit uses nano-catalytic Agent film；The quantity of ultraviolet lamp 13 is several, and the quantity of the nano-deposit glass tube 14 is several；The nano-catalytic Agent film uses nano-titanium dioxide, nano silver or nano zine oxide；The glass tube uses quartz glass material or common glass Glass material；

The blower 10, ultraviolet lamp 13 and adjustable baffle plate 11 are connect with control module 9；

Control module 9 includes automatic controller 15, and automatic controller 15 is connected with relay 16, motor 17 and stroke and opens 18 are closed, automatic controller 15 is also connect with ethylene sensor 8；The automatic controller 15 uses single-chip microcontroller or PLC controller；

Relay 16 is connect with blower 10 and ultraviolet lamp 13, and motor 17 is connect with adjustable baffle plate 11, travel switch 18 It is arranged in adjustable baffle plate 11.

As shown in Figure 3 and Figure 4, in examples detailed above 1, blower 10 includes the first blower 10.1, the second blower 10.2, third wind Machine 10.3, four fan device 10.4 and the 5th blower 10.5；

The relay 16 includes the first relay 16.1, the second relay 16.2, third relay 16.3, the 4th relay Device 16.4, the 5th relay 16.5 and ultraviolet lamp relay 16.6；

First relay 16.1 is connect with the first blower 10.1, and the second relay 16.2 is connect with the second blower 10.2, the Three relays 16.3 are connect with third blower 10.3, and the 4th relay 16.4 is connect with four fan device 10.4, the 5th relay 16.5 connect with the 5th blower 10.5, and ultraviolet lamp relay 16.6 is connect with ultraviolet lamp 13；

First relay 16.1, the second relay 16.2, third relay 16.3, the 4th relay 16.4, the 5th relay Device 16.5 and ultraviolet lamp relay equal 16.6 are connect with automatic controller 15；

The motor 17 includes the first motor 17.1 and the second motor 17.2, and the first motor 17.1 and second is electric Motivation 17.2 is connect with automatic controller 15, and the first motor 17.1 is connected with the first runner 19.1, the second motor 17.2 It is connected with the second runner 19.2；

The adjustable baffle plate 11 include the first fixed plate 20.1, the first movable plate 21.1, the second fixed plate 20.2 and Second movable plate 21.2；

First fixed plate, 20.1 one end is fixedly installed inside the shell, 20.1 other end of the first fixed plate and the second fixed plate 20.2 are oppositely arranged, and first sliding groove 22.1 is provided in the first fixed plate 20.1, and 22.1 are provided with the first sliding block in first sliding groove 23.1, the first sliding block 23.1 is fixed on the first movable plate 21.1, and the first push rod 24.1 is additionally provided on the first sliding block 23.1, the One push rod, 24.1 other end is arranged at 19.1 edge of the first runner；

Second fixed plate, 20.2 one end is fixedly installed inside the shell, 20.2 other end of the second fixed plate and the first fixed plate 20.1 are oppositely arranged, and second sliding slot 22.2 is provided in the second fixed plate 20.2, the second sliding block is provided in second sliding slot 22.2 23.2, the second sliding block 23.2 is fixed on the second movable plate 21.2, and the second push rod 24.2 is additionally provided on the second sliding block 23.2, the Two push rods, 24.2 other end is arranged at 19.2 edge of the second runner；

Region of the air inlet 12 between the first movable plate 21.1 and the second movable plate 21.2；

First fixed plate 20.1 is identical as 20.2 length of the second fixed plate, and first movable plate 21.1 and second is living 21.2 length of movable plate is identical；

The travel switch 18 includes first position switch 18.1, second position switch 18.2, the third place switch 18.3 With the 4th position switch 18.4；

First position switch 18.1, second position switch 18.2, the third place switch 18.3 and the 4th position switch 18.4 are arranged in first sliding groove 22.1, and the side opposite with the second fixed plate 20.2 is arranged in first position switch 18.1, The side opposite with shell is arranged in 4th position switch 18.4, and second position switch 18.2 is arranged in first position switch 18.1 Between the 4th position switch 18.4, the third place switch 18.3 is arranged in second position switch 18.2 and the 4th position switch Between 18.4；

First position switch 18.1, second position switch 18.2, the third place switch 18.3 and the 4th position switch 18.4 connect with automatic controller 15.

It is dense that the first concentration value, the second concentration value, third concentration value, the 4th concentration value and the 5th are inputted by automatic controller Angle value.Wherein, the first concentration value is the minimum ethylene threshold value of equipment starting, when ethylene concentration is higher than threshold value, automatic controller Start a blower and ultraviolet lamp by relay.When ethylene concentration is more than the second concentration value setting value, automatic controller to Adjustable baffle plate motor sends instruction, and two blowers are opened while being started to adjustable baffle plate, when air-admitting surface reaches maximum Area 2/5 when, motor is stopped by travel switch.When ethylene concentration is more than third concentration value setting value, automatic controller Instruction is sent again, and adjustable baffle plate opens while starting three blowers, when air-admitting surface reaches maximum area 3/5, leads to Overtravel switch stops motor.When ethylene concentration is more than the 4th concentration value setting value, automatic controller hair time sends instruction, can Controllable register is opened while starting four blowers, when opening area reaches maximum area 4/5, stops electricity by travel switch Machine.When ethylene concentration is more than the 5th concentration value setting value, automatic controller hair time sends instruction, and adjustable baffle plate is opened simultaneously Start all blowers, adjustable baffle plate unlatching stops to motor after maximum.When ethylene concentration is lower than threshold value (the first concentration value), Automatic controller only retains a blower operating, for guaranteeing that air can cycle through second by cut-off ultraviolet lamp Alkene sensor realizes the real-time monitoring of ethylene concentration.

The embodiments of the present invention be it is illustrative and not restrictive, above-described embodiment, which is only to aid in, understands this reality With novel, therefore the utility model is not limited to embodiment described in specific embodiment, all by those skilled in the art's root The other specific embodiments obtained according to the technical solution of the utility model also belong to the range of the utility model protection.

Claims (10)

1. a kind of nano-photo catalytic freshness preserving equipment, which is characterized in that including shell, air inlet (1) and outlet are provided on shell Mouth (2)；

Air inlet filter screen (3), detection control zone (4), plenum area (5), gas treatment area (6) and outlet are provided in shell It makes a slip of the tongue strainer (7)；

Air inlet filter screen (3) setting is on the inside of air inlet (1), air inlet filter screen (3) connecting detection control zone (4), detection Control zone (4) connects plenum area (5), and plenum area (5) connect gas treatment area (6), and gas treatment area (6) connect gas outlet filtering Net (7), gas outlet filter screen (7) setting is on the inside of gas outlet (2)；

Detection control zone (4) is provided with ethylene sensor (8) and control module (9), ethylene sensor (8) and control module (9) Connection；

Plenum area (5) is provided with blower (10), is provided with adjustable baffle plate (11) between plenum area (5) and detection control zone (4), Adjustable baffle plate (11) forms air inlet (12)；

Gas treatment area (6) is provided with ultraviolet lamp (13) and nano-deposit glass tube (14), and the nano-deposit is urged using nanometer Agent film；

The blower (10), ultraviolet lamp (13) and adjustable baffle plate (11) are connect with control module (9).

2. a kind of nano-photo catalytic freshness preserving equipment as described in claim 1, which is characterized in that air inlet (1), air inlet filtering Net (3), detection control zone (4), plenum area (5), gas treatment area (6), gas outlet filter screen (7) and gas outlet (2) are from upper It is set gradually under and.

3. a kind of nano-photo catalytic freshness preserving equipment as claimed in claim 2, which is characterized in that the ethylene sensor (8) sets It sets on the upside of air inlet (12).

4. a kind of nano-photo catalytic freshness preserving equipment as described in claim 1, which is characterized in that control module (9) includes automatic Controller (15), automatic controller (15) are connected with relay (16), motor (17) and travel switch (18), automatic controller (15) it is also connect with ethylene sensor (8)；

Relay (16) is connect with blower (10) and ultraviolet lamp (13), and motor (17) is connect with adjustable baffle plate (11), stroke It switchs in (18) setting adjustable baffle plate (11).

5. a kind of nano-photo catalytic freshness preserving equipment as claimed in claim 4, which is characterized in that the blower (10) includes first Blower (10.1), the second blower (10.2), third blower (10.3), four fan device (10.4) and the 5th blower (10.5)；

The relay (16) includes the first relay (16.1), the second relay (16.2), third relay (16.3), the 4th Relay (16.4), the 5th relay (16.5) and ultraviolet lamp relay (16.6)；

First relay (16.1) is connect with the first blower (10.1), and the second relay (16.2) and the second blower (10.2) are even It connecing, third relay (16.3) is connect with third blower (10.3), and the 4th relay (16.4) is connect with four fan device (10.4), 5th relay (16.5) is connect with the 5th blower (10.5), and ultraviolet lamp relay (16.6) is connect with ultraviolet lamp (13)；

First relay (16.1), the second relay (16.2), third relay (16.3), the 4th relay (16.4), the 5th Relay (16.5) and ultraviolet lamp relay (16.6) are connect with automatic controller (15).

6. a kind of nano-photo catalytic freshness preserving equipment as claimed in claim 4, which is characterized in that the motor (17) includes the One motor (17.1) and the second motor (17.2), the first motor (17.1) and the second motor (17.2) are controlled with automatic Device (15) connection processed, the first motor (17.1) are connected with the first runner (19.1), and the second motor (17.2) is connected with second Runner (19.2)；

The adjustable baffle plate (11) includes the first fixed plate (20.1), the first movable plate (21.1), the second fixed plate (20.2) And second movable plate (21.2)；

First fixed plate (20.1) one end is fixedly installed inside the shell, the first fixed plate (20.1) other end and the second fixed plate (20.2) it is oppositely arranged, first sliding groove (22.1) is provided in the first fixed plate (20.1), (22.1) are provided in first sliding groove First sliding block (23.1), the first sliding block (23.1) are fixed on the first movable plate (21.1), and the first sliding block is also set up on (23.1) Have the first push rod (24.1), the first push rod (24.1) other end is arranged at the first runner (19.1) edge；

Second fixed plate (20.2) one end is fixedly installed inside the shell, the second fixed plate (20.2) other end and the first fixed plate (20.1) it is oppositely arranged, is provided in the second fixed plate (20.2) second sliding slot (22.2), is provided in second sliding slot (22.2) Second sliding block (23.2), the second sliding block (23.2) are fixed on the second movable plate (21.2), and the second sliding block is also set up on (23.2) Have the second push rod (24.2), the second push rod (24.2) other end is arranged at the second runner (19.2) edge；

Region of the air inlet (12) between the first movable plate (21.1) and the second movable plate (21.2).

7. a kind of nano-photo catalytic freshness preserving equipment as claimed in claim 6, which is characterized in that first fixed plate (20.1) Identical as the second fixed plate (20.2) length, first movable plate (21.1) is identical as the second movable plate (21.2) length；

The travel switch (18) includes first position switch (18.1), second position switch (18.2), the third place switch (18.3) and the 4th position switch (18.4)；

First position switchs (18.1), second position switch (18.2), the third place switch (18.3) and the 4th position switch (18.4) it is arranged on first sliding groove (22.1), first position switchs (18.1) setting opposite with the second fixed plate (20.2) Side, the 4th position switch (18.4) is arranged in the side opposite with shell, and the second position switchs (18.2) and is arranged first Between position switch (18.1) and the 4th position switch (18.4), the third place switchs (18.3) setting and switchs in the second position (18.2) between the 4th position switch (18.4)；

First position switchs (18.1), second position switch (18.2), the third place switch (18.3) and the 4th position switch (18.4) it is connect with automatic controller (15).

8. a kind of nano-photo catalytic freshness preserving equipment as described in claim 1, which is characterized in that the quantity of the ultraviolet lamp (13) For several, the quantity of the nano-deposit glass tube (14) is several.

9. a kind of nano-photo catalytic freshness preserving equipment as described in claim 1, which is characterized in that the air inlet filter screen (3) PP cotton material, non-woven fabrics material or mineral wool material are all made of with gas outlet filter screen (7)；

The nano-catalytic agent film uses nano-titanium dioxide, nano silver or nano zine oxide；

The glass tube uses quartz glass material or simple glass material.

10. a kind of nano-photo catalytic freshness preserving equipment as claimed in claim 4, which is characterized in that the automatic controller (15) Using single-chip microcontroller or PLC controller.