Ozone sterilization and ethylene removal device for fruit preservation

Abstract

The utility model discloses a fruit fresh -keeping is with ozone sterilization ethylene removal device, including for the ethylene in the storage component is removed and removes the component, and the removal component and the fresh -keeping component are connected through the negative pressure conveying mechanism, the removal component is including the reaction container and the cover that fixes in its top, the reaction container inner wall is fixed with the support ring, and the support ring top place has honeycomb ceramic, and reaction container side respectively install ozone conveying mechanism and solenoid valve two. The utility model discloses through the negative pressure conveying mechanism with the gas containing ethylene in the storage warehouse is delivered to the reaction container, under the action of the catalyst on the reaction temperature and honeycomb ceramic, with the ozone of ozone conveying mechanism delivery is fully reacted, converts ethylene into the water and carbon dioxide of no secondary pollution and discharges, effectively removes ethylene, delays the fruit ripening and after -ripening process, and the ethylene concentration sensor of storage warehouse one side inner wall installation can real -time monitoring internal ethylene concentration.

Description

Technical Field

[0001] This utility model relates to the field of fruit ethylene removal technology, and in particular to an ozone sterilization and ethylene removal device for fruit preservation. Background Technology

[0002] Fruits, an indispensable part of people's daily diet, are rich in vitamins, minerals, and dietary fiber, playing a crucial role in maintaining human health. However, fruits continue to engage in vital activities after harvesting, undergoing physiological processes such as respiration. Ethylene release is a significant characteristic of fruit ripening and post-ripening. As a plant hormone, ethylene promotes respiration, accelerating ripening and senescence, which is extremely detrimental to fruit storage and preservation. This is especially true for ethylene-sensitive fruit varieties; if ethylene is not removed promptly during storage, it can lead to premature ripening and spoilage, shortening shelf life and causing significant economic losses for fruit farmers and merchants.

[0003] Traditional methods of fruit preservation mainly include low-temperature refrigeration and controlled atmosphere storage. Although low-temperature refrigeration can inhibit the respiration of fruit and the growth and reproduction of microorganisms to a certain extent, it has limited effect on removing ethylene. Controlled atmosphere storage delays the ripening of fruit by adjusting the gas composition in the storage environment, such as reducing the oxygen concentration and increasing the carbon dioxide concentration, but it also cannot effectively deal with the ethylene released by the fruit itself.

[0004] Therefore, developing an ozone sterilization and ethylene removal device for fruit preservation that is structurally sound, easy to operate, highly automated, and equipped with remote control capabilities is of significant practical importance. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an ozone sterilization and ethylene removal device for fruit preservation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An ozone sterilization and ethylene removal device for fruit preservation includes a removal component for removing ethylene from a storage component. The removal component and the preservation component are connected by a negative pressure conveying mechanism. The removal component includes a reaction container and a cover plate fixed to its top. A support ring is fixed to the inner wall of the reaction container, and a honeycomb ceramic is placed on the top of the support ring. An ozone conveying mechanism and a solenoid valve are respectively installed on the side of the reaction container.

[0008] As a further embodiment of this utility model: the storage component includes a storage warehouse and a warehouse door, the warehouse door being hinged to one end of the storage warehouse.

[0009] As a further embodiment of this utility model: the negative pressure conveying mechanism includes a housing and a negative pressure fan. The housing is fixed to the inner wall of a through hole on one side of the storage warehouse by an embedded method, and the negative pressure fan is fixed to the inner wall of the housing circumference. One end of the housing is connected to a one-way valve by a thread.

[0010] As a further embodiment of this utility model: a connecting pipe is fixed to the top of the cover plate via a joint, and the end of the connecting pipe away from the cover plate is fixedly connected to a one-way valve via bolts.

[0011] As a further embodiment of this utility model: the ozone delivery mechanism includes a delivery pipe and a solenoid valve, the solenoid valve being fixed to the side wall of the reaction vessel, and the delivery pipe being fixed to one end of the solenoid valve.

[0012] As a further improvement of this utility model: a support plate is fixed to the bottom outer wall of the reaction vessel, and a caster wheel is movably connected to the bottom of the support plate.

[0013] As a further improvement of this utility model: a solenoid valve three is fixed to one side of the outer wall of the storage warehouse by bolts, and a connecting pipe is fixed to one end of the solenoid valve three by bolts.

[0014] As a further improvement of this invention: an ethylene concentration sensor is installed on the inner wall of one side of the storage warehouse.

[0015] As a further improvement of this invention, a controller is installed on the side wall of the reaction vessel.

[0016] Compared with the prior art, this utility model provides an ozone sterilization and ethylene removal device for fruit preservation, which has the following beneficial effects:

[0017] 1. Ethylene-containing gas in the storage warehouse is transported to the reaction vessel through a negative pressure conveying mechanism. Under the reaction temperature of 250-300℃ and the action of a catalyst, it reacts fully with ozone delivered by the ozone conveying mechanism, converting ethylene into water and carbon dioxide without secondary pollution and discharging them. This effectively removes ethylene and delays the ripening and post-ripening process of fruits.

[0018] 2. An ethylene concentration sensor installed on the inner wall of one side of the storage warehouse can monitor the internal ethylene concentration in real time. When the concentration exceeds the standard, it will send a signal to the controller to start the negative pressure fan and draw ethylene into the reaction vessel for reaction.

[0019] 3. The bottom of the reaction vessel is equipped with a support plate and is connected to casters, which improves the mobility of the removal component and makes it easy to adjust the position of the device according to actual needs. At the same time, the design of the removal component, such as the reaction vessel and the cover plate being fixed with bolts and the honeycomb ceramic being placed on the support ring, facilitates disassembly and installation.

[0020] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an ozone sterilization and ethylene removal device for fruit preservation proposed in this utility model.

[0022] Figure 2 This is a side view structural diagram of an ozone sterilization and ethylene removal device for fruit preservation proposed in this utility model.

[0023] Figure 3 This is a schematic diagram of the main structure of an ozone sterilization and ethylene removal device for fruit preservation proposed in this utility model.

[0024] Figure 4 This is a schematic cross-sectional view of the main body of the ozone sterilization and ethylene removal device for fruit preservation proposed in this utility model.

[0025] In the diagram: 1. Storage warehouse; 2. Warehouse door; 3. Controller; 4. Reaction vessel; 5. Cover plate; 6. Connecting pipe; 7. Housing; 8. Negative pressure fan; 9. Ethylene concentration sensor; 10. Delivery pipe; 11. Casters; 12. Support plate; 13. Solenoid valve 1; 14. Check valve; 15. Honeycomb ceramic; 16. Solenoid valve 2; 17. Support ring; 18. Solenoid valve 3; 19. Connecting pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0028] An ozone sterilization and ethylene removal device for fruit preservation, such as Figures 1 to 4 As shown, it includes a removal component for removing ethylene from the storage component. The removal component and the preservation component are connected by a negative pressure conveying mechanism. The removal component includes a reaction container 4 and a cover plate 5 fixed to its top by bolts. A support ring 17 is fixed to the inner wall of the reaction container 4. A honeycomb ceramic 15 is placed on the top of the support ring 17. An ozone conveying mechanism and a solenoid valve 16 are respectively installed on the side of the reaction container 4.

[0029] Fruits can be stored using storage components. Ethylene is a gas produced and released by fruits during ripening and post-ripening. It is a plant hormone that promotes respiration and accelerates post-ripening, and has a ripening effect on fruits stored after harvesting. For fruits sensitive to ethylene, ethylene should be removed during storage. When ethylene removal is necessary, a negative pressure conveying mechanism is used to transport the ethylene-containing gas from the storage warehouse 1 to the reaction container 4. The reaction container 4 has an electric heating function. A support ring 17 can support the honeycomb ceramic 15, which can hold catalysts such as palladium-platinum catalysts. After the catalyst is placed on the honeycomb ceramic 15, the reaction container 4 and the cover plate 5 are fixed, and the reaction temperature is raised to 250-300℃. This allows the ethylene-containing gas to react with ozone delivered by the ozone conveying mechanism under the action of the catalyst, thereby removing ethylene. After the ethylene reaction, water and carbon dioxide are produced. When the solenoid valve 16 is opened, the reaction products can be discharged without secondary pollution to the fruits and vegetables. The chemical formula of the reaction is:

[0030] C2H4 + 3O2 = 2CO2 + 2H2O.

[0031] The storage assembly includes a storage warehouse 1 and a door 2. The door 2 is hinged to one end of the storage warehouse 1, and an ethylene concentration sensor 9 is installed on the inner wall of one side of the storage warehouse 1.

[0032] The storage warehouse 1 can be used to store fruits, and the warehouse door 2 can be used to close the storage warehouse 1. The ethylene concentration sensor 9 can be used to monitor the ethylene concentration inside the storage warehouse 1. In this embodiment, the ethylene concentration sensor 9 is preferably ME3-C2H4.

[0033] The negative pressure conveying mechanism includes a housing 7 and a negative pressure fan 8. The housing 7 is fixed to the inner wall of a through hole on one side of the storage warehouse 1 by embedding, and the negative pressure fan 8 is fixed to the inner wall of the housing 7 by screws. One end of the housing 7 is connected to a one-way valve 14 by a thread. The top of the cover plate 5 is fixed to a connecting pipe 6 by a joint, and the end of the connecting pipe 6 away from the cover plate 5 is fixedly connected to the one-way valve 14 by bolts.

[0034] When the ethylene concentration sensor 9 detects that the ethylene concentration inside the storage warehouse 1 exceeds the standard, it controls the negative pressure fan 8 to start. After the negative pressure fan 8 starts, it uses negative pressure to draw ethylene into the casing 7, and finally enters the reaction vessel 4 through the one-way valve 14 and the connecting pipe 6 to react. The one-way valve 14 can prevent ethylene backflow.

[0035] The ozone delivery mechanism includes a delivery pipe 10 and a solenoid valve 13. The solenoid valve 13 is fixed to the side wall of the reaction vessel 4 by bolts, and the delivery pipe 10 is fixed to one end of the solenoid valve 13 by bolts.

[0036] During operation, the end of the delivery pipe 10 away from the solenoid valve 13 and the ozone generator (not shown) are connected. The ozone generator ionizes and decomposes the oxygen molecules O2 in the air or oxygen into individual oxygen atoms O through high voltage discharge or ultraviolet radiation. Subsequently, these highly reactive oxygen atoms combine with the undecomposed oxygen molecules O2 to generate ozone molecules O3 composed of three oxygen atoms. Its working principle is existing technology and will not be described in detail here.

[0037] A solenoid valve 18 is fixed to one side of the outer wall of the storage warehouse 1 by bolts, and a connecting pipe 19 is fixed to one end of the solenoid valve 18 by bolts.

[0038] When ozone is needed to sterilize the interior of storage warehouse 1, the connecting pipe 19 and the delivery pipe 10 are connected to the ozone generator through a pipeline. During sterilization, the solenoid valve 13 is closed and the solenoid valve 18 is opened. The ozone generator delivers ozone into the interior of storage warehouse 1, thereby sterilizing the fruit inside storage warehouse 1. Ozone can diffuse throughout the interior space of storage warehouse 1, destroying the cell structure and genetic material of bacteria, viruses and other microorganisms, quickly killing or inhibiting their activity, achieving all-round sterilization and disinfection, and providing a clean storage environment for the fruit.

[0039] The bottom outer wall of the reaction vessel 4 is fixed with a support plate 12 by bolts, and the bottom of the support plate 12 is rotatably connected with a caster wheel 11;

[0040] The omnidirectional wheels 11 can improve the mobility of the removal components.

[0041] A controller 3 is installed on the side wall of the reaction vessel 4;

[0042] The controller 3 uses real-time monitoring data from the integrated ethylene concentration sensor 9. When the ethylene concentration in the storage warehouse 1 exceeds the standard, the ethylene concentration sensor 9 wirelessly transmits a signal back to the controller 3, causing it to control the negative pressure fan 8 to start and deliver gas to the reaction vessel 4. At the same time, it controls the electric heating component of the reaction vessel 4 to adjust the temperature to 250-300℃ and activates the ozone delivery mechanism's solenoid valve 13 to supply ozone. After the reaction is completed, the product is discharged through solenoid valve 2 16. When it is necessary to sterilize the fruit, solenoid valve 13 can be closed and solenoid valve 3 18 can be opened. Mobile phone control can be achieved by embedding a Wi-Fi or Bluetooth module in the controller 3 and developing a matching APP to remotely set parameters such as temperature threshold, fan speed, real-time data viewing, and abnormal alarm push. Users can control the equipment to start and stop or adjust the operating mode through their mobile phones.

[0043] Working principle: The ethylene concentration in the storage warehouse 1 is monitored in real time by the ethylene concentration sensor 9. When the concentration exceeds the standard, the controller 3 automatically starts the negative pressure fan 8 to transport the ethylene-containing gas through the one-way valve 14 and the connecting pipe 6 to the reaction vessel 4 with electric heating function. At the same time, the controller 3 turns on the ozone delivery mechanism to allow the ozone generated by the ozone generator to enter the reaction vessel 4. It works synergistically with the palladium-platinum catalyst loaded on the honeycomb ceramic 15 to catalytically oxidize ethylene into harmless carbon dioxide and water at a high temperature of 250-300℃. The reaction products are discharged through the solenoid valve 16.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An ozone sterilization and ethylene removal device for fruit preservation, comprising a removal assembly for removing ethylene in a storage assembly, characterized by, The removal component and the preservation component are connected by a negative pressure conveying mechanism. The removal component includes a reaction container (4) and a cover plate (5) fixed on its top. A support ring (17) is fixed on the inner wall of the reaction container (4). A honeycomb ceramic (15) is placed on the top of the support ring (17). An ozone conveying mechanism and a solenoid valve (16) are respectively installed on the side of the reaction container (4).

2. The ozone sterilization and ethylene removal device for fruit preservation according to claim 1, characterized in that, The storage component includes a storage warehouse (1) and a door (2), the door (2) being hinged to one end of the storage warehouse (1).

3. The ozone sterilization and ethylene removal device for fruit preservation according to claim 1, characterized in that, The negative pressure conveying mechanism includes a housing (7) and a negative pressure fan (8). The housing (7) is fixed to the inner wall of a through hole on one side of the storage warehouse (1) by embedding, and the negative pressure fan (8) is fixed to the inner wall of the circumference of the housing (7). One end of the housing (7) is connected to a one-way valve (14) by thread.

4. The ozone sterilization and ethylene removal device for fruit preservation according to claim 3, characterized in that, The top of the cover plate (5) is fixed with a connecting pipe (6) by a joint, and the end of the connecting pipe (6) away from the cover plate (5) is fixedly connected to the one-way valve (14) by bolts.

5. The ozone sterilization and ethylene removal device for fruit preservation according to claim 4, characterized in that, The ozone delivery mechanism includes a delivery pipe (10) and a solenoid valve (13). The solenoid valve (13) is fixed to the side wall of the reaction vessel (4), and the delivery pipe (10) is fixed to one end of the solenoid valve (13).

6. The ozone sterilization and ethylene removal device for fruit preservation according to claim 2, characterized in that, The reaction vessel (4) has a support plate (12) fixed to its bottom outer wall, and the bottom of the support plate (12) is movably connected to a caster wheel (11).

7. The ozone sterilization and ethylene removal device for fruit preservation according to claim 6, characterized in that, The storage warehouse (1) has a solenoid valve three (18) fixed to one side of the outer wall by bolts, and a connecting pipe (19) is fixed to one end of the solenoid valve three (18) by bolts.

8. The ozone sterilization and ethylene removal device for fruit preservation according to claim 7, characterized in that, An ethylene concentration sensor (9) is installed on one side of the inner wall of the storage warehouse (1).

9. The ozone sterilization and ethylene removal device for fruit preservation according to claim 8, characterized in that, The reaction vessel (4) is equipped with a controller (3) on its side wall.

Images