Essential oil vaporization device for preserving fruits and vegetables

Abstract

The utility model relates to the field of fruit and vegetable preservation, especially a kind of essential oil gasification device for fruit and vegetable preservation, including vacuum pump, jar, gasification curtain, pressure transmitter, PLC controller, solenoid valve and essential oil box, form negative pressure in jar by vacuum pump, when pressure transmitter detects that jar reaches the set negative pressure value, PLC controller controls solenoid valve to open, essential oil in essential oil box flows through liquid guide pipe, drop liquid pipe in proper order and then flows out from leakage hole, slowly immerse gasification curtain, and the heating component in gasification curtain is heated and gasified to essential oil, the temperature range of PLC controller control heating element is between 60~70 DEG C, to adapt to the volatilization temperature of essential oil;Because jar is in the state of negative pressure, essential oil after gasification has more penetration, and the efficiency of bacteriostatic and preservation treatment is higher, solve the problem that the preservation effect of fruit and vegetable is poor in the single decompression environment or single fumigation bacteriostatic treatment of existing single.

Description

Technical Field

[0001] This utility model relates to the field of fruit and vegetable preservation, and in particular to an essential oil vaporization device for fruit and vegetable preservation. Background Technology

[0002] Currently, with the development of the transportation industry, people can conveniently enjoy fruits and vegetables transported from all over the world. This places higher demands on preservation technology, which must ensure that fruits and vegetables maintain their fresh taste when they reach consumers.

[0003] The mainstream preservation technologies for fruits and vegetables mainly include low-temperature refrigeration, chemical preservative treatment, and depressurized storage. Among them, depressurized storage technology effectively inhibits the respiration rate and microbial activity of fruits and vegetables by reducing the air pressure in the storage environment, thereby delaying spoilage. However, depressurization alone has limited inhibitory effect on certain pathogens, and long-term low-pressure environments may lead to moisture loss in fruits and vegetables, affecting their quality.

[0004] To address these issues, existing technologies commonly employ chemical fumigation or natural plant essential oils for antibacterial treatment. Natural plant essential oils have garnered significant attention due to their antibacterial properties and safety; however, spraying them at normal pressure presents challenges, including the easy evaporation or dilution of essential oil components by the air, making it difficult to maintain an effective antibacterial concentration. Utility Model Content

[0005] This invention provides an essential oil vaporization device for preserving fruits and vegetables, which solves the problem that existing single decompression environment or single fumigation and antibacterial treatment will result in poor preservation effect of fruits and vegetables.

[0006] To achieve the above objectives, this utility model provides an essential oil vaporization device for preserving fruits and vegetables, including a tank. A pressure control module includes a vacuum pump and a pressure transmitter, wherein the vacuum pump is connected to the tank and the pressure transmitter is located inside the tank. It also includes an essential oil box, which is located on the outside of the container; A dripping pipe is located inside the tank. The lower part of the dripping pipe has multiple leakage holes. The dripping pipe is connected to the essential oil box through a liquid guiding pipe. The liquid guiding pipe is equipped with a solenoid valve. A vaporization device includes a vaporization curtain and a heating assembly mounted on the vaporization curtain; one side of the vaporization curtain is connected to a plurality of the leakage holes.

[0007] Preferably, the above technical solution further includes a blower, which is located inside the tank and the blowing direction of the blower corresponds to the gasification curtain.

[0008] Preferably, the above technical solution also includes a PLC controller, which is connected to the heating component, vacuum pump, solenoid valve, pressure transmitter and fan respectively.

[0009] Preferably, in the above technical solution, the heating assembly includes a heating element, a temperature sensor, a relay, and a power supply. The first electrode of the power supply is connected to one end of the relay, the second electrode is connected to one end of the heating element, the other end of the relay is connected to the other end of the heating element, and the PLC controller is connected to the control terminals of the heating element, the temperature sensor, and the relay respectively.

[0010] Preferably, in the above technical solution, the heating element is a heating wire.

[0011] Preferably, in the above technical solution, the temperature range of the heating wire is between 60 and 70°C.

[0012] Preferably, in the above technical solution, the gasification curtain is a non-woven fabric gasification curtain.

[0013] Preferably, in the above technical solution, the middle part of the vaporization curtain is suspended on the dripping pipe, the two sides of the lower end of the vaporization curtain are attached to each other, and the heating element is disposed inside the attached vaporization curtain.

[0014] Compared with existing technologies, this utility model has the following beneficial effects: 1. The essential oil vaporization device for fruit and vegetable preservation in this utility model uses a vacuum pump to create negative pressure inside the tank. When the pressure transmitter detects that the set negative pressure value has been reached inside the tank, the PLC controller controls the solenoid valve to open. The essential oil in the essential oil box flows through the liquid guiding pipe and the dripping pipe in sequence and then flows out from the leakage hole, slowly wetting the vaporization curtain. The heating component inside the vaporization curtain heats and vaporizes the essential oil. The PLC controller controls the temperature range of the heating element between 60 and 70°C to adapt to the volatilization temperature of the essential oil. Because the tank is under negative pressure, the vaporized essential oil has greater penetrability, and the efficiency of antibacterial and preservation treatment is higher. This solves the problem that existing single decompression environment or single fumigation antibacterial treatment will result in poor preservation effect of fruits and vegetables.

[0015] 2. In this utility model, the vaporization curtain is located in front of the fan. When heating and evaporating the essential oil on the vaporization curtain, the fan's blowing also accelerates the vaporization of the essential oil. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the internal structure of the essential oil vaporization device for preserving fruits and vegetables in the embodiment.

[0017] Figure 2 This is a schematic diagram of the leakage pipe of the essential oil vaporization device for preserving fruits and vegetables in the embodiment.

[0018] Figure 3 This is a schematic diagram of the interior of the vaporization curtain of the essential oil vaporization device for preserving fruits and vegetables in the embodiment.

[0019] Figure 4 This is a schematic diagram of the control circuit of the essential oil vaporization device for preserving fruits and vegetables in the embodiment.

[0020] Figure 5 This is a schematic diagram of the external structure of the essential oil vaporization device for preserving fruits and vegetables in the embodiment.

[0021] Among them, 1-tank body, 10-vaporization curtain, 100-heating wire, 11-drip pipe, 110-leakage hole, 16-fan, 2-essential oil box, 20-liquid guiding pipe, 21-solenoid valve, 3-vacuum pump. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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.

[0024] In the description of this invention, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. Where the terms "first," "second," and "third" are used for descriptive purposes and to distinguish technical features, they should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the circumstances. The embodiments of this utility model will be described below based on its overall structure.

[0026] like Figures 1-5 As shown, the essential oil vaporization device for preserving fruits and vegetables in this embodiment includes a tank 1, a vaporization curtain 10, a heating wire 100, a dripping pipe 11, a leakage hole 110, a fan 16, an essential oil box 2, a liquid guiding pipe 20, a solenoid valve 21, and a vacuum pump 3.

[0027] like Figures 1-5 As shown, the essential oil vaporization device for preserving fruits and vegetables in this embodiment includes a tank 1, a vaporization curtain 10, a dripping pipe 11, a leakage hole 110, a fan 16, a pressure transmitter 17, an essential oil box 2, a liquid guiding pipe 20, a solenoid valve 21, and a vacuum pump 3.

[0028] refer to Figure 4 The PLC controller U1 is connected to the heating component, vacuum pump 3, solenoid valve 21, pressure transmitter 17 and fan 16 respectively, and the PLC controller U1 controls the orderly operation of each component.

[0029] refer to Figures 1-5 The tank 1 is connected to the vacuum pump 3. The vacuum pump 3 can remove the ethylene gas emitted by the fruits and vegetables in the tank 1, slowing down the ripening speed of the fruits and vegetables. At this time, the fruits and vegetables in the tank 1 are in a low-pressure environment.

[0030] The essential oil container 2 is installed on the outside of the container body 1. Inside the container body 1 is a dripping pipe 11, which is connected to the essential oil container 2 via a liquid guiding pipe 20. The liquid guiding pipe 20 is equipped with a solenoid valve 21, which is used to cut off or allow the essential oil to flow through the liquid guiding pipe 20. Multiple leakage holes 110 are located at the bottom of the dripping pipe 11, allowing the essential oil to flow out through the leakage holes 110 after entering the pipe. The tank 1 is also equipped with a pressure transmitter 17 and a vaporization device. A negative pressure value is preset for the pressure transmitter 17. When the negative pressure value is reached, the solenoid valve 21 opens. The vaporization device includes a vaporization curtain 10 and a heating component installed on the vaporization curtain 10. One side of the vaporization curtain 10 is connected to multiple leakage holes 110. The essential oil flowing out from the leakage holes 110 will slowly wet the vaporization curtain 10. The heating component inside the vaporization curtain 10 will heat the vaporization curtain 10 to the vaporization temperature of the essential oil to achieve vaporization of the essential oil. It should be noted that when the essential oil wets the vaporization curtain 10, it will be heated and evaporated when it flows to the heating component, so there will be no waste of essential oil dripping onto the ground.

[0031] Continue to refer to Figure 4 The temperature of the heating component installed on the vaporization curtain 10 is controlled within a safe range during operation, preventing burns to the vaporization curtain 10. Specifically, the heating component includes a heating element R1, a temperature sensor T1, a relay k1, and a power supply DC. The first electrode of the power supply DC is connected to one end of the normally open switch K1-1 of the relay k1, and the second electrode is connected to one end of the heating element R1. The other end of the normally open switch K1-1 of the relay k1 is connected to the other end of the heating element R1. The PLC controller U1 is connected to the control terminals of the heating element R1, the temperature sensor T1, and the relay k1. The heating element R1 is preferably a heating wire 100.

[0032] In addition, the vaporization curtain 10 is preferably a non-woven fabric vaporization curtain. The middle part of the vaporization curtain 10 is suspended on the dripping pipe 11. The two sides of the lower end of the vaporization curtain 10 are attached together. The heating wire 100 is installed inside the attached vaporization curtain 10. The temperature range of the heating wire 100 needs to be controlled between 60 and 70°C. This temperature range corresponds to the vaporization temperature of the essential oil.

[0033] The blower 16 is installed inside the tank 1, and the blowing direction of the blower 16 corresponds to that of the vaporization curtain 10. While the heating element heats and evaporates the essential oil, the airflow generated by the blower 16 blows towards the vaporization curtain 10, which can further accelerate the vaporization speed of the essential oil. In the low-pressure, closed vaporization environment, the essential oil is more likely to diffuse and adhere to the surface of fruits and vegetables. At this time, the essential oil has greater penetrability, the efficiency of antibacterial and preservation treatment is higher, and the amount of preservation spray can be significantly reduced.

[0034] In summary, this embodiment uses a vacuum pump 3 to create a negative pressure inside the tank 1. When the pressure transmitter 17 detects that the set negative pressure value has been reached inside the tank 1, the PLC controller U1 controls the solenoid valve 21 to open. The essential oil in the essential oil box 2 flows sequentially through the liquid guide pipe 20 and the drip pipe 11 before flowing out from the leakage hole 110 and slowly wetting the vaporization curtain 10. The heating component inside the vaporization curtain 10 heats and vaporizes the essential oil. The PLC controller U1 controls the temperature range of the heating wire between 60 and 70°C to adapt to the evaporation temperature of the essential oil. Because the tank 1 is under negative pressure, the vaporized essential oil has greater penetrability, resulting in higher efficiency in antibacterial and preservation treatments. This solves the problem that existing single decompression environments or single fumigation antibacterial treatments can lead to poor preservation effects for fruits and vegetables.

[0035] The foregoing description of specific exemplary embodiments of the present invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the present invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. An essential oil vaporization device for preserving fruits and vegetables, comprising: Tank body; A pressure control module includes a vacuum pump and a pressure transmitter, wherein the vacuum pump is connected to the tank and the pressure transmitter is located inside the tank. Its characteristic is that it further includes: An essential oil box is located on the outside of the container; A dripping pipe is located inside the tank. The lower part of the dripping pipe has multiple leakage holes. The dripping pipe is connected to the essential oil box through a liquid guiding pipe. The liquid guiding pipe is equipped with a solenoid valve. A vaporization device includes a vaporization curtain and a heating assembly mounted on the vaporization curtain; one side of the vaporization curtain is connected to a plurality of the leakage holes.

2. The essential oil vaporization device for preserving fruits and vegetables according to claim 1, characterized in that, It also includes a blower, which is located inside the tank and the blowing direction of the blower corresponds to that of the gasification curtain.

3. The essential oil vaporization device for preserving fruits and vegetables according to claim 2, characterized in that, It also includes a PLC controller, which is connected to the heating component, vacuum pump, solenoid valve, pressure transmitter and fan respectively.

4. The essential oil vaporization device for preserving fruits and vegetables according to claim 3, characterized in that, The heating assembly includes a heating element, a temperature sensor, a relay, and a power supply. The first electrode of the power supply is connected to one end of the relay, the second electrode is connected to one end of the heating element, and the other end of the relay is connected to the other end of the heating element. The PLC controller is connected to the control terminals of the heating element, the temperature sensor, and the relay.

5. The essential oil vaporization device for preserving fruits and vegetables according to claim 4, characterized in that, The heating element is a heating wire.

6. The essential oil vaporization device for preserving fruits and vegetables according to claim 5, characterized in that, The temperature range of the heating wire is between 60 and 70°C.

7. The essential oil vaporization device for preserving fruits and vegetables according to claim 1, characterized in that, The vaporization curtain is a non-woven fabric vaporization curtain.

8. The essential oil vaporization device for preserving fruits and vegetables according to claim 4, characterized in that, The vaporization curtain is suspended in the middle of the dripping pipe, and the two sides of the lower end of the vaporization curtain are attached to each other. The heating element is located inside the attached vaporization curtain.

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