Post-harvest comprehensive treatment device for fresh cut flowers

Abstract

The present invention relates to the technical field of fresh cut flower storage, and particularly to a post-harvest comprehensive treatment device for fresh cut flowers. The post-harvest comprehensive treatment device for fresh cut flowers comprises: a container, a differential pressure air guiding assembly and an ultrasonic atomizer; the differential pressure air guiding assembly is arranged inside a heat preservation box body, and comprises: a ventilation box and a wind guiding baffle; the ventilation box comprises: a top plate, a back plate and two ventilation side plates; a plurality of ventilation holes are uniformly arranged on each ventilation side plate; a return air channel is formed between the back plate and the bottom surface of the heat preservation box body; a ventilation interlayer is formed between the ventilation box and the heat preservation box body; the wind guiding baffle is arranged in the ventilation interlayer and blocks between the air outlet and the air return opening of the evaporator for separating the ventilation interlayer into an air inlet area and an air return area; the aerosol outlet of the ultrasonic atomizer is arranged above the inside of the ventilation box. The post-harvest comprehensive treatment of fresh cut flowers integrates rapid precooling, nutrient retention, anti-corrosion, storage and logistics, which helps to improve the circulation efficiency of fresh cut flowers and extend the storage period.

Description

Technical Field

[0001] The present invention relates to the technical field of fresh cut flower storage, and particularly to a post - harvest comprehensive treatment device for fresh cut flowers. Background Art

[0002] With the improvement of living standards, people's requirements for the quality of life are getting higher and higher, and the demand for fresh flowers is also increasing day by day. Fresh cut flowers, also known as cut flowers, refer to the stems, leaves, flowers, fruits and other plant materials cut from living plants, which have ornamental value and are used for making flower baskets, bouquets, wreaths, flower rings, vase arrangements, wall flowers, and chest ornaments, etc. Compared with dried flowers and artificial flowers, fresh cut flowers have the most natural beauty of flower materials, with gorgeous colors, fragrant smells, full of real vitality, and a wide range of applications. They are often used as the stems, leaves, flowers, fruits and other plant materials for making flower baskets, bouquets, wreaths, flower rings, vase arrangements, wall flowers, and chest ornaments, etc. Yunnan is the largest province in China for fresh cut flower production, and its output has ranked first in the country for 28 consecutive years. In 2021, the output of fresh cut flowers in Yunnan Province was 16.225 billion branches, and the agricultural output value of the flower industry in the province in 2021 was 40.625 billion yuan.

[0003] At present, most fresh cut flowers are artificially planted in greenhouse greenhouses. Some well - known enterprises have achieved intelligent water and fertilizer self - control and automated sorting. However, the pre - cooling, storage and transportation preservation links in the post - harvest commercialization process are still traditional and simple treatment methods. The main process is to first place the harvested fresh cut flowers in a cold storage for pre - cooling, and then pack them into cardboard boxes for storage and transportation. The post - harvest treatment requires multiple transfers. Coupled with the metabolic characteristics of fresh cut flowers themselves, the decay rate of fresh cut flowers is high during the storage, transportation and other circulation links, and the storage period is short. The storage life of fresh cut flowers directly affects their market value. Taking roses as an example, the flower loss rate of fresh rose flowers is as high as over 30%, resulting in low export prices, high costs and large losses of fresh rose flowers in China. The post - harvest cold storage and preservation period of cut roses is only 7 - 10 days, and the export price is only 35% of that in the Netherlands and 45% of that in Colombia. Therefore, how to extend the storage period of fresh cut flowers has attracted more and more attention from technicians in this field. Summary of the Invention

[0004] To solve or partially solve the problems existing in the related technologies, the present invention provides a post - harvest comprehensive treatment device for fresh cut flowers.

[0005] The present invention provides a post - harvest comprehensive treatment device for fresh cut flowers, which includes: a container, a differential pressure air - guiding component and an ultrasonic atomizer; wherein,

[0006] The container includes: a heat - insulating box body and a wall - mounted refrigerating machine; an airtight door is arranged on the panel of the heat - insulating box body; the evaporator of the wall - mounted refrigerating machine is arranged inside the heat - insulating box body and installed at the top of the back of the heat - insulating box body; an air outlet is arranged on the front of the evaporator, and a return air outlet is arranged at the rear of the bottom surface.

[0007] The differential pressure air guiding assembly is arranged inside the heat preservation box body and includes: a ventilation box and a wind guiding baffle; the ventilation box includes: a top plate, a back plate and two ventilation side plates; the two ventilation side plates are arranged opposite to each other along the width direction of the heat preservation box body, and a plurality of ventilation holes are evenly arranged on each ventilation side plate; a return air channel is formed between the back plate and the bottom surface of the heat preservation box body; the front part of the bottom surface of the evaporator is located on the top plate of the ventilation box; the head end of the ventilation box abuts against the panel of the heat preservation box body; a ventilation interlayer is formed between the ventilation box and the heat preservation box body;

[0008] The wind guiding baffle is arranged in the ventilation interlayer and blocks between the air outlet and the air return port of the evaporator, and is used for dividing the ventilation interlayer into an air inlet area and an air return area; the air outlet of the evaporator is located in the air inlet area and is communicated with the ventilation holes of the ventilation side plate; the air return port of the evaporator is located in the air return area and is communicated with the return air channel;

[0009] The aerosol outlet of the ultrasonic atomizer is arranged above the inside of the ventilation box.

[0010] Further, there are two wind guiding baffles, which are respectively arranged on both sides of the evaporator along the width direction of the heat preservation box body; each wind guiding baffle includes: a first vertical plate located between the top surface of the heat preservation box body, the top surface of the ventilation box, the side surface of the evaporator and the side surface of the heat preservation box body on this side; and a second vertical plate located between the top surface of the heat preservation box body, the bottom surface of the heat preservation box body, the ventilation side plate on this side and the side surface of the heat preservation box body on this side; the second vertical plate and the first vertical plate are of an integral structure, or the second vertical plate is located between the first vertical plate and the back plate of the ventilation box.

[0011] Further, the plurality of ventilation holes on the ventilation side plate include first ventilation holes located at the lower part of the ventilation side plate and second ventilation holes located at the upper part of the ventilation side plate, and the aperture of the first ventilation hole is larger than that of the second ventilation hole.

[0012] Further, the aperture of the first ventilation hole is 10 mm to 15 mm, and the aperture of the second ventilation hole is 2 mm to 4 mm.

[0013] Further, the ultrasonic atomizer is installed on the outer surface of the panel of the heat preservation box body, and the aerosol outlet of the ultrasonic atomizer is arranged on one side close to the panel of the heat preservation box body.

[0014] Further, a palletizing box rack is further included, and the palletizing box rack is arranged in the ventilation box; the palletizing box rack includes: a rack body and a nutrition unit;

[0015] The nutrient unit includes: a liquid storage tank and a partition; the liquid storage tank is arranged on the bottom surface of the frame body, a liquid storage space for placing nutrient solution is formed in the liquid storage tank, and a plurality of flower arranging limiting holes communicated with the liquid storage space are opened on the top surface of the liquid storage tank; the partition is arranged on the top surface of the liquid storage tank in the vertical direction and is located between two flower arranging limiting holes.

[0016] Further, a detachable top cover is arranged on the top of the liquid storage tank, and a plurality of the flower arranging limiting holes are opened on the top cover; a clamping groove is opened on the top cover, and the lower part of the partition is inserted into the clamping groove.

[0017] Further, an LED lamp assembly is further included; it is characterized in that the LED lamp assembly is installed on the top plate of the ventilation box; the LED lamp assembly includes a green light LED lamp and a blue light LED lamp.

[0018] Further, the LED lamp assembly further includes a temperature sensor and a controller, the signal input end of the controller is connected with the sensor, and the signal output end is connected with the green light LED lamp and the blue light LED lamp, and is used to control the working states of the green light LED lamp and the blue light LED lamp according to the temperature data sent by the temperature sensor.

[0019] Further, the container is a 20-foot container or a 40-foot container.

[0020] The postharvest comprehensive treatment device provided by the present invention may include the following beneficial effects:

[0021] 1. The postharvest comprehensive treatment device for fresh cut flowers is obtained by installing an ultrasonic atomizer and adding a differential pressure air guiding component inside on the basis of an existing container, which has a small floor area and also has the characteristic of convenient movement of the container; there is no need to design a special box structure, saving equipment costs; and it also has the characteristic of convenient movement of the container, realizing the integration of precooling and storage and transportation.

[0022] 2. By adding a differential pressure air guiding component inside the container, the air outlet and the air return port of the evaporator are not directly communicated, but through the arranged air guiding baffle and the ventilation box, the interlayer between the ventilation box and the heat preservation box body is divided into an air inlet area and an air return area. The air outlet of the evaporator in the air inlet area is communicated with the ventilation holes of the ventilation side plate, and the air return port of the evaporator in the air return area is communicated with the air return channel, thereby forcing the cold air discharged from the air outlet to flow back to the air return port after passing through the inside of the ventilation box. Moreover, through the ventilation holes opened on the ventilation side plate of the ventilation box and the air return channel formed between the back plate and the bottom surface of the heat preservation box body, two pressure differences are formed during the air flow circulation process, that is, after two accelerations, and the air flow circulation path passes through the ventilation box, thereby realizing the rapid precooling of fresh cut flowers.

[0023] 3. The post - harvest comprehensive treatment device for fresh cut flowers is provided with an ultrasonic atomizer, which is used to introduce an aerosol containing antibacterial components and fresh - keeping components into the container. On the one hand, it can timely supplement water for the fresh cut flowers. On the other hand, it can sterilize and inhibit the respiratory metabolism of the fresh cut flowers, realizing synchronous regulation of physiology and diseases.

[0024] In summary, the post - harvest comprehensive treatment for fresh cut flowers provided by the present invention integrates rapid precooling, nutrition preservation, anti - corrosion, storage and logistics, which helps to improve the circulation efficiency of fresh cut flowers and extend the storage period.

[0025] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present invention. Brief Description of the Drawings

[0026] By describing the exemplary embodiments of the present invention in more detail in conjunction with the drawings, the above - mentioned and other objects, features and advantages of the present invention will become more obvious. Among them, in the exemplary embodiments of the present invention, the same reference numerals generally represent the same components.

[0027] Figure 1 is a top - view schematic diagram of the internal structure of the post - harvest comprehensive treatment device for fresh cut flowers shown in the embodiment of the present application;

[0028] Figure 2 is a side - view schematic diagram of the internal structure of the post - harvest comprehensive treatment device for fresh cut flowers shown in the embodiment of the present application;

[0029] Figure 3 is a front - view schematic diagram of the internal structure of the post - harvest comprehensive treatment device for fresh cut flowers shown in the embodiment of the present application;

[0030] Figure 4 is a rear - view schematic diagram of the internal structure of the post - harvest comprehensive treatment device for fresh cut flowers shown in the embodiment of the present application;

[0031] Figure 5 is a front - view schematic diagram of the internal structure of the post - harvest comprehensive treatment device for fresh cut flowers shown in another embodiment of the present application;

[0032] Figure 6 is a front - view schematic diagram of the palletizing box rack in the post - harvest comprehensive treatment device for fresh cut flowers shown in another embodiment of the present application.

[0033] Description of the Reference Numerals:

[0034] 1 - heat - preservation box body

[0035] 11 - airtight door

[0036] 2 - evaporator

[0037] 21 - air outlet

[0038] 22 - Air return opening

[0039] 3 - Ventilation box

[0040] 31 - Top plate

[0041] 32 - Back plate

[0042] 321 - Air return channel

[0043] 33 - Ventilation side plate

[0044] 331 - Ventilation hole

[0045] 4 - Air guiding baffle

[0046] 41 - First vertical plate

[0047] 42 - Second vertical plate

[0048] 5 - Ultrasonic atomizer

[0049] 51 - Mist outlet

[0050] 6 - Palletizing box rack

[0051] 61 - Rack body

[0052] 62 - Liquid storage tank

[0053] 621 - Flower arranging limiting hole

[0054] 63 - Partition board

[0055] 7 - LED lamp assembly Detailed implementation manners

[0056] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0057] The terms used in the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms of "a", "the", and "said" used in the present invention and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0058] It should be understood that although the terms "first", "second", "third", etc. may be used in the present invention to describe various information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0059] The present invention provides a comprehensive post-harvest treatment device for fresh cut flowers. This device integrates pre-cooling, nutrient supplementation, transportation, physiological regulation, antibacterial and anti-corrosion functions, can reduce the post-harvest transfer process, improve the post-harvest circulation efficiency of fresh cut flowers, and help extend the storage period. The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0060] Please refer to Figures 1 to 4 , an embodiment of the present invention provides a comprehensive post-harvest treatment device for fresh cut flowers, which includes: a container, a differential pressure air guiding component, and an ultrasonic atomizer 5; wherein,

[0061] The container includes: a heat-insulating box body 1 and a wall-mounted refrigerating machine; an airtight door 11 is provided on the panel of the heat-insulating box body 1; the evaporator 2 of the wall-mounted refrigerating machine is arranged inside the heat-insulating box body 1 and installed at the top of the back surface of the heat-insulating box body 1; an air outlet 21 is provided on the front surface of the evaporator 2, and an air return port 22 is provided at the rear of the bottom surface.

[0062] The differential pressure air guiding component is arranged inside the heat-insulating box body 1 and includes: a ventilation box 3 and a wind guiding baffle 4; the ventilation box 3 includes: a top plate 31, a back plate 32, and two ventilation side plates 33; the two ventilation side plates 33 are relatively arranged along the width direction of the heat-insulating box body 1, and a plurality of ventilation holes 331 are evenly arranged on each ventilation side plate 33; a return air channel 321 is formed between the back plate 32 and the bottom surface of the heat-insulating box body 1; the front part of the bottom surface of the evaporator 2 is located on the top plate 31 of the ventilation box 3; the head end of the ventilation box 3 abuts against the panel of the heat-insulating box body; a ventilation sandwich is formed between the ventilation box 3 and the heat-insulating box body 1.

[0063] The wind guiding baffle 4 is arranged in the ventilation sandwich, blocking between the air outlet 21 and the air return port 22 of the evaporator 2, and is used to divide the ventilation sandwich into an air inlet area and an air return area; the air outlet 21 of the evaporator 2 is located in the air inlet area and is connected to the ventilation holes 331 of the ventilation side plate 33; the air return port 22 of the evaporator 2 is located in the air return area and is connected to the return air channel 321.

[0064] The aerosol outlet 51 of the ultrasonic atomizer 5 is arranged above the inside of the ventilation box 3.

[0065] The post - harvest comprehensive treatment device for fresh cut flowers provided in this embodiment includes a container, a differential - pressure air - guiding component, and an ultrasonic atomizer 5. The comprehensive treatment device takes the container as the main structure and is obtained by installing the ultrasonic atomizer 5 and adding the differential - pressure air - guiding component inside. This device can be improved on the basis of the existing container without the need for additional processing and design of the main box body, which is beneficial to reducing the R & D and equipment costs, and also has the convenient - movement characteristic of the container. The differential - pressure air - guiding component arranged inside the container is used to form a pressure difference inside the container to achieve differential - pressure precooling. The set ultrasonic atomizer 5 is used to introduce an aerosol containing antibacterial components and fresh - keeping components into the container. On the one hand, it can timely supplement water for the fresh cut flowers, and on the other hand, it can inhibit bacteria and the respiratory metabolism of the fresh cut flowers, thus achieving the effect of anti - corrosion and fresh - keeping.

[0066] A storage space for fresh cut flowers is formed inside the heat - insulating box body 1 of the above - mentioned container. The wall - mounted refrigerating machine is used to cool the inside of the heat - insulating box body 1. The arrangement position of the wall - mounted refrigerating machine can be the same as that of the existing container, and it is placed at the top of the back inside the heat - insulating box body 1. An air outlet 21 is arranged on the front of the evaporator 2, and an air return port 22 is arranged at the rear of the bottom surface. The airtight door 11 on the front of the heat - insulating box body 1 facilitates the putting in and taking out of fresh cut flowers. Specifically, the above - mentioned container can adopt a 20 - foot container or a 40 - foot container. Further, a 3 - horsepower wall - mounted refrigerating machine can be matched with a 20 - foot container, and an 8 - horsepower wall - mounted refrigerating machine can be matched with a 40 - foot container. In this application, the “front”, “back” and “side” of other components regarding the orientation are based on the orientation of the heat - insulating box body 1, that is, the surface close to the airtight door 11 is the front, the surface opposite to the front is the back, and the surfaces on both sides of the front and the back are the sides. The direction close to the “front” is “front”, and the direction close to the “back” is “back”.

[0067] The above-mentioned differential pressure air guiding assembly is placed inside the container and used in cooperation with the wall-mounted refrigerator to achieve differential pressure precooling. Specifically, the differential pressure air guiding assembly includes a ventilation box 3 and an air guiding baffle 4. The ventilation box 3 is a box body without a bottom surface and a front surface. After the ventilation box 3 is placed inside the heat preservation box body, its head end abuts against the panel of the heat preservation box body 1, that is, it shares the bottom surface and the front surface with the heat preservation box body 1. The rectangular space formed inside is used to place fresh cut flowers. A ventilation sandwich layer is formed between the ventilation box 3 and the heat preservation box body 1. The air guiding baffle 4 is arranged in this ventilation sandwich layer, and it is used to separate the air outlet 21 and the air return port 22 of the evaporator 2, respectively forming an air inlet area and an air return area. A circulation area is formed inside the ventilation box 3. The air inlet area is communicated with the circulation area through the ventilation holes 331 on the ventilation side plate 33 of the ventilation box 3, and the air return area is communicated with the circulation area through the air return channel 321 between the back plate 32 and the bottom surface of the heat preservation box body 1. Those skilled in the art can understand that the foregoing separation means that the air outlet 21 and the air return port 22 of the evaporator 2 are not directly communicated, but by arranging the air guiding baffle 4, the air outlet 21 of the evaporator 2 is connected to the ventilation holes 331 of the ventilation side plate 33, and the air return port 22 of the evaporator 2 is connected to the air return channel 321, so that the air outlet 21 and the air return port 22 are indirectly communicated through the ventilation holes 331 of the ventilation side plate 33 and the air return channel 321 of the back plate 32, thereby forcing the cold air discharged from the air outlet 21 to flow back to the air return port 22 through a specific channel. Figure 1 and Figure 2 The arrow direction in Figure 2 is the air outlet direction of the air outlet 21 of the evaporator. The circulation direction of the cold air discharged from the air outlet 21 of the evaporator 2 is: air outlet 21 - air inlet area - ventilation holes 331 of the ventilation side plate 33 - inside the ventilation box 3 - air return channel 321 - air return area - air return port 22. Through further physical structure design, pressure differences are formed in both the air inlet area and the air return area to achieve differential pressure precooling. Specifically, ventilation holes 331 are evenly arranged on the ventilation side plate 33 of the ventilation box 3 body, which are used to form an air inlet pressure difference during air inlet to increase the wind speed. A preset gap is left between the back plate 32 of the ventilation box 3 and the bottom surface of the heat preservation box body 1, and this gap forms the air return channel 321, which is used to form an air return pressure difference during air return, thereby realizing differential pressure precooling of the fresh cut flowers inside the ventilation box 3.

[0068] Preferably, there are two air guiding baffles 4, which are respectively arranged on both sides of the evaporator 2 along the width direction of the heat preservation box body 1; each air guiding baffle 4 includes: a first vertical plate 41 located between the top surface of the heat preservation box body 1, the top surface of the ventilation box 3, the side surface of the evaporator 2 and the side surface of the heat preservation box body 1 on this side; and a second vertical plate 42 located between the top surface of the heat preservation box body 1, the bottom surface of the heat preservation box body 1, the ventilation side plate 33 on this side and the side surface of the heat preservation box body 1 on this side. The above-mentioned second vertical plate 42 and the first vertical plate 41 can be an integral structure (such as Figures 1 to 4(as shown in the figure); or it can be a split structure, with the second vertical plate 42 located between the first vertical plate 41 and the back plate 32 of the ventilation box 3. It only needs to ensure that the ventilation sandwich can be divided into two areas, and the air outlet 21 and the air return port 22 of the evaporator 2 are respectively located in the air inlet area and the air return area. After setting the air guide baffle 4, the cold air discharged from the air outlet 21 of the evaporator 2 first moves forward above the ventilation box 3. Under the blocking effect of the panel of the heat preservation box body 1, a part of the cold air will move downward along the ventilation side plate 33 of the ventilation box 3 and move between the second vertical plate 42 and the panel of the heat preservation box body 1 under the blocking effect of the second vertical plate 42; a part of the cold air is bounced back and moves backward, and then under the blocking effect of the first vertical plate 41, a part of the cold air moves downward along the ventilation side plate 33 of the ventilation box 3, and a part of the cold air is bounced back and moves forward again. Repeating like this, most of the cold air will move downward along the ventilation side plate 33 and move between the second vertical plate 42 and the panel of the heat preservation box body 1, and under the negative pressure effect of the air return port 22, it enters the ventilation box 3 through the ventilation holes on the ventilation side plate 33. At this time, due to the reduction of the flow area, a pressure difference is generated, and the air flow is accelerated; the air flow entering the ventilation box 3 moves backward under the negative pressure effect of the air return port 22, and passes through the air return channel 321 below the back plate 32 of the ventilation box 3. Similarly, due to the reduction of the flow area, an air pressure difference will be generated again, and the air flow is accelerated. After passing through the air return channel 321, the gas will move upward along the back plate 32 and enter the air return port 22 of the evaporator 2 to complete a gas cycle. Thus, under the action of the ventilation box 3 and the air guide baffle 4, the air flow is accelerated twice, and the circulation path of the air flow passes through the circulation area in the ventilation box 3, thereby realizing the rapid precooling of fresh cut flowers. The distance between the above-mentioned ventilation side plate 33 and the side surface of the heat preservation box body 1 is preferably 10 cm to 15 cm, and the height of the air return channel 321 is preferably 8 cm to 12 cm.

[0069] As a preferred solution of this embodiment, please refer to Figure 2 , several ventilation holes 331 on the above-mentioned ventilation side plate 33 include a first ventilation hole located at the lower part of the ventilation side plate and a second ventilation hole located at the upper part of the ventilation side plate, and the aperture of the first ventilation hole is larger than that of the second ventilation hole. Since the air flow pressure at the bottom is greater than that at the upper part, setting the aperture of the first ventilation hole to be larger than that of the second ventilation hole can make the wind speed more uniform up and down inside the ventilation box 3 and improve the uniformity of the precooling of fresh cut flowers. Further, the aperture of the first ventilation hole is 10 mm to 15 mm, and the aperture of the second ventilation hole is 2 mm to 4 mm. More preferably, the opening area of the first ventilation hole accounts for 20% to 30% of the surface area of the ventilation side plate, and the opening area of the second ventilation hole accounts for 10% to 20% of the surface area of the ventilation side plate.

[0070] The above ultrasonic atomizer 5 is used to introduce an aerosol containing a preservative and an antibacterial agent into the ventilation box 3. For example, during use, according to the volume of the ventilation box 3 and the concentration of 1-MCP (1-methylcyclopropene) required by the fresh flowers, an antibacterial agent solution is pre-prepared and stored in the liquid storage tank. When fumigation starts, a certain amount of 1-MCP preservation tablets are added to the ultrasonic oscillation chamber, and then according to the required dosage and concentration of the fumigant, the antibacterial agent solution is added to the ultrasonic oscillation chamber. After the water in the antibacterial agent solution dissolves the 1-MCP inclusion of the 1-MCP preservation tablets, 1-MCP gas is released, and the 1-MCP gas and the antibacterial agent are simultaneously filled into the ventilation box 3 in the form of gas and droplets respectively for ethylene regulation and disinfection and anti-corrosion. As a preferred solution of this embodiment, the ultrasonic atomizer 5 is installed on the outer surface of the panel of the heat preservation box body 1, and the aerosol outlet 51 of the ultrasonic atomizer 5 is arranged on one side close to the panel of the heat preservation box body 1.

[0071] In another preferred embodiment of the present invention, please refer to Figure 5 and Figure 6 , the above post-harvest comprehensive treatment device for fresh cut flowers further includes a palletizing box rack 6, and the palletizing box rack 6 is arranged in the ventilation box; the palletizing box rack 6 includes: a rack body 61 and a nutrition unit; the nutrition unit includes: a liquid storage tank 62 and a partition 63; the liquid storage tank 62 is arranged on the bottom surface of the rack body 61, a liquid storage space for placing nutrient solution is formed in the liquid storage tank 62, and a plurality of flower arranging limiting holes 621 communicating with the liquid storage space are opened on the top surface of the liquid storage tank 62; the partition 63 is arranged vertically on the top surface of the liquid storage tank 62 and is located between two flower arranging limiting holes 621.

[0072] The above rack body 61 constitutes the main support structure of the palletizing box rack 6. The rack body 61 is used to place fresh cut flowers. A nutrition unit is arranged in the rack body 61. The nutrition unit is used to provide nutrient solution for fresh cut flowers and play a certain limiting role in the horizontal and vertical directions of fresh cut flowers. The palletizing box rack 6 can be stacked for use. Please refer to Figure 5, thereby making full use of the vertical space and improving the space utilization rate of the cold storage; at the same time, the nutrient solution supply treatment can be carried out on the fresh cut flowers to reduce the water loss, rot, etc. that occur during storage or logistics transfer and distribution. The liquid storage tank 62 of the above-mentioned nutrient unit is used to place the nutrient solution, and several flower arranging limiting holes 621 opened on the top surface of the liquid storage tank 62 are used to insert small bunches of fresh cut flowers. On the one hand, while providing the fresh cut flowers with the nutrient solution, the volatilization loss of the nutrient solution is reduced, and the water loss of the fresh cut flowers during precooling, storage and transportation is slowed down. The nutrient solution can be sterile water or acidic electrolysis; on the other hand, the arranged flower arranging limiting holes 621 play a certain limiting role on the fresh cut flowers; finally, through this structural design, the large-bunch fresh cut flowers originally stored can be divided into several small bunches and stored separately, reducing problems such as damage and poor heat dissipation caused by local extrusion between flower bunches. A partition 63 is arranged between adjacent flower arranging limiting holes 621, and the partition 63 is used to horizontally limit the fresh cut flowers to prevent the fresh cut flowers from collapsing and the collapsed flower bunches from squeezing adjacent fresh cut flowers. Preferably, the above-mentioned flower arranging limiting holes 621 are arranged on the top surface of the liquid storage tank 62 in a matrix manner, and the partition 63 is arranged between adjacent rows of flower arranging limiting holes 621 and / or between adjacent columns of flower arranging limiting holes 621.

[0073] Bacteria may grow in the liquid storage tank 62 after long-term storage of the nutrient solution. In order to facilitate the cleaning of the inside of the liquid storage tank 62, the liquid storage tank 62 preferably adopts a split structure. A detachable top cover is arranged on the top of the liquid storage tank 62, and several above-mentioned flower arranging limiting holes 621 are opened on the top cover; a card slot is opened on the top cover, and the lower part of the above-mentioned partition 63 is inserted into the card slot. When it is necessary to clean the inside of the liquid storage tank 62, only need to remove the top cover, and then the inside of the liquid storage tank 62 can be cleaned comprehensively. The liquid storage tank 62 with this structure has a simple structure, is convenient to disassemble and assemble, and is convenient to clean.

[0074] Please refer to Figure 5 , the above-mentioned comprehensive post-harvest treatment device for fresh cut flowers preferably further includes an LED lamp assembly 7; it is characterized in that the LED lamp assembly 7 is installed on the top plate 31 of the ventilation box 3; the LED lamp assembly 7 includes a green light LED lamp and a blue light LED lamp. The arranged LED lamp assembly 7 is used to perform light radiation sterilization on the fresh cut flowers placed in the ventilation box 3. Those skilled in the art can understand that the LED lamp assembly 7 should be installed on the bottom surface of the top plate 31 of the ventilation box 3, that is, the illumination direction of the LED lamp assembly 7 is downward. The LED lamp assembly 7 is used to inhibit the growth and reproduction of pathogenic bacteria. Specifically: the blue light emitted by the blue light LED lamp has a wavelength of 450nm - 500nm and a light intensity of 15m -2 s -1 ~20μmol m -2 s -1 , the green light emitted by the green light LED lamp has a wavelength of 510nm - 560nm and a light intensity of 25μmol m-2 s -1 ~30 μmol m -2 s -1 ,Green light can reduce the growth rate of Botrytis cinerea. After 12 hours of green light irradiation, the mitochondria in the hyphae of Botrytis cinerea are deformed, the matrix swells and relaxes, and the number of cristae decreases. The main function of blue light is to inhibit the spore production of fungi and reduce the pathogenic ability of pathogenic bacteria. Blue light and green light complement each other to jointly inhibit the growth and reproduction of pathogenic bacteria. Correspondingly, the partition 63 of the above-mentioned nutrient unit is preferably made of a transparent partition, which can improve the light transmittance to ensure the uniformity of different lights received by the fresh cut flowers in each flower arranging limiting hole 621.

[0075] Furthermore, the above-mentioned LED lamp assembly 7 further includes a temperature sensor and a controller. The signal input end of the controller is connected to the sensor, and the signal output end is connected to the green light LED lamp and the blue light LED lamp, and is used to control the working states of the green light LED lamp and the blue light LED lamp according to the temperature data sent by the temperature sensor. The above-mentioned temperature sensor is used to detect the temperature of the surrounding environment of the palletizing box, and this temperature sensor can be specifically arranged on the rack 61 or on a fixed object near the palletizing box rack 6. The controller functions to control the working states of the green light LED lamp and the blue light LED lamp according to the ambient temperature. For example: during the pre-cooling stage of fresh cut flowers, the antibacterial light radiation is strengthened, and during the storage stage after pre-cooling, the antibacterial light radiation can be appropriately reduced to save power consumption. At this time, the automatic switching of the working states of the green light LED lamp and the blue light LED lamp can be realized by setting the end temperature of pre-cooling as the judgment basis. Specifically, it can be: when the temperature data sent by the temperature sensor is less than the preset value (pre-cooling end temperature value), the controller controls the green light LED lamp and the blue light LED lamp to start synchronously; when the temperature data sent by the temperature sensor is greater than the preset value (pre-cooling end temperature value), the controller controls the green light LED lamp and the blue light LED lamp to start asynchronously. For example, the blue light LED lamp starts for 8h - 10h, and the green light LED lamp starts for 10h - 12h.

[0076] As can be seen from the above content, the post-harvest comprehensive treatment device for fresh cut flowers provided by the embodiment of the present invention has the following advantages:

[0077] 1. The post-harvest comprehensive treatment device for fresh cut flowers is obtained by installing an ultrasonic atomizer and adding a differential pressure air guiding component inside on the basis of an existing container, with a small floor area, and also has the convenient moving characteristic of a container; there is no need to design a special box structure, saving equipment costs; and it also has the convenient moving characteristic of a container, realizing the integration of pre-cooling and storage and transportation.

[0078] 2. By installing a differential pressure air guiding component in the container, the post-harvest comprehensive treatment device for fresh cut flowers makes the air outlet and air return port of the evaporator not directly connected. Instead, through the set air guiding baffle and ventilation box, the interlayer between the ventilation box and the heat preservation box body is divided into an air inlet area and an air return area. The air outlet of the evaporator in the air inlet area is connected to the ventilation holes of the ventilation side plate, and the air return port of the evaporator in the air return area is connected to the air return channel, thereby forcing the cold air discharged from the air outlet to flow back to the air return port after passing through the inside of the ventilation box. Moreover, through the ventilation holes opened on the ventilation side plate of the ventilation box and the air return channel formed between the back plate and the bottom surface of the heat preservation box body, two pressure differences are formed during the air flow circulation process, that is, after two accelerations, and the air flow circulation path passes through the ventilation box, thereby realizing the rapid pre-cooling of fresh cut flowers.

[0079] 3. The post-harvest comprehensive treatment device for fresh cut flowers is provided with an ultrasonic atomizer, which is used to introduce an aerosol containing antibacterial components and preservation components into the container. On the one hand, it can timely supplement moisture for fresh cut flowers, and on the other hand, it can sterilize and inhibit the respiratory metabolism of fresh cut flowers, realizing the synchronous regulation of physiology and diseases.

[0080] In summary, the post-harvest comprehensive treatment for fresh cut flowers provided by the embodiments of the present invention integrates rapid pre-cooling, nutrition preservation, anti-corrosion, storage and logistics, which helps to improve the circulation efficiency of fresh cut flowers and extend the storage period.

[0081] The various embodiments of the present invention have been described above. The above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and variations are obvious to those of ordinary skill in the art in the technical field without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technologies in the market, or to enable other ordinary technical personnel in the technical field to understand the embodiments disclosed herein.

Claims

1. An integrated post - harvest treatment device for fresh cut flowers, characterized in that, it includes: a container, a differential - pressure air - guiding component and an ultrasonic atomizer; wherein, the container includes: a heat - insulating box body and a wall - mounted refrigerator; an airtight door is arranged on the panel of the heat - insulating box body; the evaporator of the wall - mounted refrigerator is arranged inside the heat - insulating box body and installed at the top of the back surface of the heat - insulating box body; an air outlet is arranged on the front surface of the evaporator, and an air return port is arranged at the rear part of the bottom surface; the differential - pressure air - guiding component is arranged inside the heat - insulating box body and includes: a ventilation box and a wind - guiding baffle; the ventilation box includes: a top plate, a back plate and two ventilation side plates; the two ventilation side plates are arranged opposite to each other along the width direction of the heat - insulating box body, and a number of ventilation holes are evenly arranged on each ventilation side plate; a return air channel is formed between the back plate and the bottom surface of the heat - insulating box body; the front part of the bottom surface of the evaporator is located on the top plate of the ventilation box; the head end of the ventilation box abuts against the panel of the heat - insulating box body; a ventilation interlayer is formed between the ventilation box and the heat - insulating box body; the wind - guiding baffle is arranged in the ventilation interlayer, blocking between the air outlet and the air return port of the evaporator, and is used for dividing the ventilation interlayer into an air - inlet area and an air - return area; the air outlet of the evaporator is located in the air - inlet area and is communicated with the ventilation holes of the ventilation side plate; the air return port of the evaporator is located in the air - return area and is communicated with the return air channel; there are two wind - guiding baffles, which are respectively arranged on both sides of the evaporator along the width direction of the heat - insulating box body; each wind - guiding baffle includes: a first vertical plate located between the top surface of the heat - insulating box body, the top surface of the ventilation box, the side surface of the evaporator and the side surface of the heat - insulating box body on this side; and a second vertical plate located between the top surface of the heat - insulating box body, the bottom surface of the heat - insulating box body, the ventilation side plate on this side and the side surface of the heat - insulating box body on this side; the second vertical plate and the first vertical plate are of an integral structure, or the second vertical plate is located between the first vertical plate and the back plate of the ventilation box; the number of ventilation holes on the ventilation side plate includes first ventilation holes located at the lower part of the ventilation side plate and second ventilation holes located at the upper part of the ventilation side plate, and the aperture of the first ventilation holes is larger than that of the second ventilation holes; the aerosol outlet of the ultrasonic atomizer is arranged above the inside of the ventilation box.

2. The integrated post - harvest treatment device for fresh cut flowers according to claim 1, characterized in that, the aperture of the first ventilation holes is 10 mm to 15 mm, and the aperture of the second ventilation holes is 2 mm to 4 mm.

3. The integrated post - harvest treatment device for fresh cut flowers according to claim 1, characterized in that, the ultrasonic atomizer is installed on the outer surface of the panel of the heat - insulating box body, and the aerosol outlet of the ultrasonic atomizer is arranged on one side close to the panel of the heat - insulating box body.

4. The integrated post - harvest treatment device for fresh cut flowers according to claim 1, characterized in that, it further includes a palletizing box rack, and the palletizing box rack is arranged inside the ventilation box; the palletizing box rack includes: a rack body and a nutrition unit; The nutrient unit includes: a liquid storage tank and a partition; the liquid storage tank is arranged on the bottom surface of the frame body, a liquid storage space for placing nutrient solution is formed in the liquid storage tank, and a plurality of flower arranging limiting holes communicated with the liquid storage space are formed in the top surface of the liquid storage tank; the partition is arranged vertically on the top surface of the liquid storage tank and is located between two flower arranging limiting holes.

5. The postharvest comprehensive treatment device for fresh cut flowers according to claim 4, characterized in that a detachable top cover is arranged on the top of the liquid storage tank, and a plurality of the flower arranging limiting holes are formed in the top cover; a clamping groove is formed in the top cover, and the lower part of the partition is inserted into the clamping groove.

6. The postharvest comprehensive treatment device for fresh cut flowers according to claim 4 further includes an LED lamp assembly; characterized in that the LED lamp assembly is installed on the top plate of the ventilation box; the LED lamp assembly includes a green light LED lamp and a blue light LED lamp.

7. The postharvest comprehensive treatment device for fresh cut flowers according to claim 6, characterized in that the LED lamp assembly further includes a temperature sensor and a controller, the signal input end of the controller is connected with the sensor, and the signal output end is connected with the green light LED lamp and the blue light LED lamp, and is used for controlling the working states of the green light LED lamp and the blue light LED lamp according to the temperature data sent by the temperature sensor.

8. The postharvest comprehensive treatment device for fresh cut flowers according to claim 1, characterized in that the container is a 20-foot container or a 40-foot container.

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