Litchi preservation device
By designing a lychee preservation device consisting of a high-pressure gas cylinder, a vortex tube nozzle, a heat exchange tube, and a carbon dioxide storage cylinder, and utilizing vortex tube refrigeration and cold storage liquid heat exchange technology, the problem of lychees being easily damaged during transportation was solved, and preservation effects were achieved in environments without continuous power supply.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2026-03-24
AI Technical Summary
Lychees are easily damaged by high temperatures during transportation, which affects their freshness.
Design a lychee preservation device including a high-pressure gas cylinder, a vortex tube nozzle, a heat exchange tube, a water tank, and a carbon dioxide storage cylinder. Utilize vortex tube refrigeration technology, cold storage liquid heat exchange, and carbon dioxide preservation mechanism, combined with fin and air guide structure, to achieve temperature control and gas management within the cabinet.
This method extends the shelf life of lychees and is suitable for lychee preservation in environments without continuous power supply, maintaining the freshness of lychees and the preservation effect of dried fruit.
Smart Images

Figure CN224022777U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to fruit fresh -keeping field, concretely is a device for lychee fresh -keeping. BACKGROUND
[0002] Lychee is evergreen tree of soapberry family lychee genus. Lychee is even pinnate compound leaf, has no hair, has handle, and the side vein is fine, has no petal, and the fruit core is fruit, and is nearly spherical, and the seed is all wrapped by the fleshiness false seed coat.
[0003] In the transportation process, lychee is easy to be damaged due to the high temperature of the outside, which affects the freshness of lychee, therefore, aiming at the above problems, a device for lychee fresh -keeping is provided. UTILITY MODEL CONTENT
[0004] In order to make up for the deficiency of prior art, solve at least one technical problem proposed in the background art, the utility model provides a device for lychee fresh -keeping.
[0005] The utility model discloses a device for lychee fresh -keeping, including the cabinet body, the front side of cabinet body is installed with the cabinet door, is installed with the lock catch between cabinet door and cabinet body, the top of cabinet body is installed with the heat exchange pipe, the side of cabinet body is installed with the high pressure gas cylinder, the outlet of high pressure gas cylinder is installed with the connecting pipe, the end of connecting pipe is fixedly connected with the vortex tube nozzle, and the cold gas end of vortex tube nozzle is fixedly connected with the heat exchange pipe.
[0006] Preferably, the inside wall on the top of the cabinet is fixedly connected with a water tank, the inside of the water tank is filled with a cold storage liquid, the heat exchange pipe penetrates through the side wall of the water tank and is fixedly connected with the water tank, and the heat exchange pipe is distributed in an S shape inside the water tank.
[0007] Preferably, the side of the cabinet is installed with a carbon dioxide storage bottle, the outlet of the carbon dioxide storage bottle is installed with a gas injection pipe, the top of the cabinet is installed with an exhaust pipe, the exhaust pipe is installed with a control valve, and the end of the heat exchange pipe, away from the vortex tube nozzle, penetrates through the side wall of the cabinet and is connected with the outside.
[0008] Preferably, a plurality of first fins are uniformly fixed on the surface of the heat exchange pipe, a heat conduction plate is fixedly connected to the bottom of the water tank, and a plurality of second fins are fixedly connected to the bottom of the heat conduction plate.
[0009] Preferably, a wind deflector is fixedly connected to the bottom of the water tank, the second fins are located inside the wind deflector, a fan is fixedly connected to the end of the wind deflector, and the end of the wind deflector, close to the fan, is arranged in a triangular structure.
[0010] Preferably, a one-way valve is installed at the end of the heat exchange pipe, away from the vortex tube nozzle.
[0011] The utility model discloses an advantage lies in:
[0012] 1. The utility model discloses a high -pressure gas cylinder, connecting pipe, vortex pipe nozzle and heat pipe are set up, when using, the fixed sealing of cabinet and cabinet is through the lock buckle, litchi is stored in the inside of cabinet, then opens high -pressure gas cylinder, and high -pressure gas cylinder is through connecting pipe and injects compressed air to vortex pipe nozzle, and the cold air end of vortex pipe nozzle will blow out cold air by vortex pipe refrigeration technology, and cold air flows in heat pipe and exchanges heat with the air of cabinet inside, to this to play the refrigeration effect to the inside of cabinet, and the refrigeration in the cabinet is realized by the above -mentioned setting, thereby can prolong the preservation time of litchi fresh fruit, and also can be convenient for the preservation of litchi dried fruit, and the above -mentioned device is applicable to the litchi storage under the condition that the refrigeration equipment cannot be stably and continuously powered.
[0013] 2. The utility model discloses a water tank is set up, when using, the heat pipe exchanges heat with the cold -stored liquid in the water tank, and the cold -stored liquid is water, and the water solidification is ice by the continuous heat exchange, then closes high -pressure gas cylinder, and the ice in the water tank continuously refrigerates the inside of cabinet. ACCURACY
[0014] In order to more clearly illustrate the technical scheme in the embodiment of the utility model or prior art, the following will be to the embodiment or prior art description needed to use the drawing briefly introduced, obviously, the following description in the drawing is only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, can also obtain other drawings according to these drawings.
[0015] Figure 1 It is the structural schematic diagram of the utility model;
[0016] Figure 2 It is the sealing ring structural schematic diagram of the utility model;
[0017] Figure 3 It is the water tank cross section structural schematic diagram of the utility model;
[0018] Figure 4 It is the cabinet cross section structural schematic diagram of the utility model;
[0019] Figure 5 It is the structure schematic diagram of the utility model's wind scooper.
[0020] In the drawing: 11, cabinet;12, cabinet door;13, high -pressure gas cylinder;14, vortex pipe nozzle;15, connecting pipe;16, heat pipe;2, water tank;31, carbon dioxide storage bottle;32, gas injection pipe;33, exhaust pipe;41, first fin;42, heat conduction plate;43, second fin;51, wind scooper;52, opening;53, fan;7, sealing ring. Detailed Implementation
[0021] 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 scope of protection of the present utility model.
[0022] Specific implementation examples are given below.
[0023] Please see Figures 1-5 As shown, a device for preserving lychees includes a cabinet 11, a cabinet door 12 installed on the front side of the cabinet 11, and a latch installed between the cabinet door 12 and the cabinet 11; a heat exchange tube 16 is installed on the top of the cabinet 11, a high-pressure gas cylinder 13 is installed on the side of the cabinet 11, a connecting pipe 15 is installed at the outlet of the high-pressure gas cylinder 13, and a vortex tube nozzle 14 is fixedly connected to the end of the connecting pipe 15; the cold air end of the vortex tube nozzle 14 is fixedly connected to the heat exchange tube 16.
[0024] In use, the cabinets 11 are fixed and sealed together by a latch. The lychees are stored inside the cabinet 11. Then, the high-pressure gas cylinder 13 is turned on, and compressed air is injected into the vortex tube nozzle 14 through the connecting pipe 15. Relying on the vortex tube refrigeration technology, the cold air end of the vortex tube nozzle 14 blows out cold air. The cold air flows in the heat exchange tube 16 and exchanges heat with the air inside the cabinet 11, thereby achieving the effect of refrigeration inside the cabinet 11. By relying on the above settings, the refrigeration inside the cabinet 11 is achieved, which can extend the storage time of fresh lychees and facilitate the storage of dried lychees. At the same time, the above device is suitable for lychee storage when a stable and continuous power supply to the refrigeration equipment cannot be provided.
[0025] Furthermore, such as Figures 1-5 As shown, a water tank 2 is fixedly connected to the inner side wall of the top of the cabinet 11. The water tank 2 is filled with cold storage liquid. The heat exchange pipe 16 penetrates the side wall of the water tank 2 and is fixedly connected to the water tank 2. The heat exchange pipe 16 is distributed in an S-shape inside the water tank 2.
[0026] During use, the heat exchange tube 16 exchanges heat with the cold storage liquid in the water tank 2. The cold storage liquid is water. Continuous heat exchange causes the water to solidify into ice. After that, the high-pressure gas cylinder 13 is closed, and the ice inside the water tank 2 continuously cools the inside of the cabinet 11.
[0027] Furthermore, such as Figures 1-5As shown, the side of the cabinet 11 is provided with a carbon dioxide storage bottle 31, the gas outlet of the carbon dioxide storage bottle 31 is provided with a gas injection pipe 32, the top of the cabinet 11 is provided with an exhaust pipe 33, the exhaust pipe 33 is provided with a control valve, the end of the heat exchange pipe 16 away from the vortex pipe nozzle 14 penetrates the side wall of the cabinet 11 and communicates with the outside;
[0028] In use, the valve of the carbon dioxide storage bottle 31 is opened, the carbon dioxide in the carbon dioxide storage bottle 31 is injected into the inside of the cabinet 11 through the gas injection pipe 32, the density of the carbon dioxide is higher than that of the air, the air in the inside of the cabinet 11 is discharged through the exhaust pipe 33, the control valve is used to control the opening and closing of the exhaust pipe 33, the gas outlet of the heat exchange pipe 16 penetrates the cabinet 11 and communicates with the outside, so as to reduce the gas in the inside of the high-pressure gas cylinder 13 into the cabinet 11, and rely on the filling of carbon dioxide, so as to play a role in the preservation of fresh litchi fruit and dried litchi fruit.
[0029] Further, as shown in the Figures 1-5 The surface of the heat exchange pipe 16 is uniformly fixed with a plurality of first fins 41, the bottom of the water tank 2 is fixed with a heat conduction plate 42, and the bottom of the heat conduction plate 42 is fixed with a plurality of second fins 43; the bottom of the water tank 2 is fixed with a wind deflector 51, the second fins 43 are located in the inside of the wind deflector 51, the end of the wind deflector 51 is fixed with a fan 53, the end of the wind deflector 51 close to the fan 53 is provided in a triangular structure, and the end of the wind deflector 51 away from the fan 53 is provided with an opening 52;
[0030] In use, the first fins 41 are arranged on the heat exchange pipe 16, so as to improve the heat exchange efficiency of the heat exchange pipe 16 and the inside of the water tank 2, the heat conduction plate 42 and the second fins 43 on the heat conduction plate 42 are arranged, so as to improve the heat exchange effect with the air in the inside of the cabinet 11, the wind deflector 51 is arranged, the fan 53 is arranged at the end of the wind deflector 51, so as to form a negative pressure in the wind deflector 51, the air in the inside of the cabinet 11 is sucked from the opening 52 and blown into the cabinet 11 by the fan 53, and the air in the inside of the cabinet 11 is driven to flow, so as to facilitate the uniform distribution of the temperature in the inside of the cabinet 11.
[0031] Further, as shown in the Figures 1-5 The end of the heat exchange pipe 16 away from the vortex pipe nozzle 14 is provided with a one-way valve;
[0032] In use, the one-way valve is arranged, so that the air in the inside of the heat exchange pipe 16 can only flow in one direction, so as to reduce the hot air outside the high-pressure gas cylinder 13 from entering the inside of the heat exchange pipe 16 after the high-pressure gas cylinder 13 is closed.
[0033] Further, as shown in the Figures 1-5As shown, the cabinet body 11 is fixed with a sealing ring 7 at the position corresponding to the cabinet door 12, which can improve the sealing effect between the cabinet body 11 and the cabinet door 12, thereby reducing the leakage of cooling and carbon dioxide inside the cabinet body 11.
[0034] The working principle is that, in use, the cabinet body 11 and the cabinet body 11 are fixed and sealed by the lock catch, the lychees are stored in the inside of the cabinet body 11, and then the high-pressure gas cylinder 13 is opened. The high-pressure gas cylinder 13 injects compressed air into the vortex tube nozzle 14 through the connecting pipe 15. By relying on the vortex tube refrigeration technology, the cold air end of the vortex tube nozzle 14 blows out cold air. The cold air flows in the heat exchange pipe 16 and exchanges heat with the air inside the cabinet body 11, thereby playing a refrigeration role on the inside of the cabinet body 11. By relying on the above setting, the refrigeration in the cabinet body 11 is realized, thereby prolonging the storage time of fresh lychees and facilitating the storage of dried lychees. At the same time, the above device is suitable for lychee storage under the condition that the refrigeration equipment cannot be stably and continuously powered. In use, the heat exchange pipe 16 exchanges heat with the cold storage liquid in the water tank 2. The cold storage liquid is water. Continuous heat exchange causes the water to solidify into ice. Then the high-pressure gas cylinder 13 is closed. The ice inside the water tank 2 continuously cools the inside of the cabinet body 11. In use, the valve of the carbon dioxide storage bottle 31 is opened. The carbon dioxide in the carbon dioxide storage bottle 31 is injected into the inside of the cabinet body 11 through the gas injection pipe 32. The density of carbon dioxide is higher than that of air. The air in the cabinet body 11 is discharged through the exhaust pipe 33. The valve is used to control the opening and closing of the exhaust pipe 33. The exhaust pipe of the heat exchange pipe 16 penetrates the cabinet body 11 and communicates with the outside, thereby reducing the entry of gas in the high-pressure gas cylinder 13 into the cabinet body 11. By relying on the filling of carbon dioxide, the fresh lychees and dried lychees can be preserved. In use, the first fin 41 is arranged on the heat exchange pipe 16, which can improve the heat exchange efficiency of the heat exchange pipe 16 and the inside of the water tank 2. By relying on the setting of the heat conduction plate 42 and the second fin 43 on the heat conduction plate 42, the heat exchange effect with the air inside the cabinet body 11 can be improved. By relying on the setting of the wind deflector 51, the end of the wind deflector 51 is installed with a fan 53. A negative pressure is formed in the wind deflector 51. The air in the cabinet body 11 is sucked from the opening 52 and blown into the cabinet body 11 by the fan 53. By relying on the air flow in the cabinet body 11, the temperature distribution in the cabinet body 11 is uniform. By relying on the setting of the one-way valve, the air in the heat exchange pipe 16 can only flow in one direction, thereby reducing the entry of hot air from the outside into the heat exchange pipe 16 after the high-pressure gas cylinder 13 is closed.
[0035] In the description of the specification, the description of the terms "one embodiment", "an example", "a specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0036] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.
Claims
1. A device for preserving lychee, comprising a cabinet body (11), a cabinet door (12) is installed on the front side of the cabinet body (11), a lock catch is installed between the cabinet door (12) and the cabinet body (11); characterized in that: The top of the cabinet (11) is provided with a heat exchange pipe (16), the side of the cabinet (11) is provided with a high-pressure gas cylinder (13), the gas outlet of the high-pressure gas cylinder (13) is provided with a connecting pipe (15), the end of the connecting pipe (15) is fixedly connected with a vortex pipe nozzle (14), and the cold gas end of the vortex pipe nozzle (14) is fixedly connected with the heat exchange pipe (16).
2. The device for preserving lychees according to claim 1, characterized in that: The inside wall of the top of the cabinet (11) is fixedly connected with a water tank (2), the inside of the water tank (2) is filled with cold storage liquid, the heat exchange pipe (16) penetrates the side wall of the water tank (2) and is fixedly connected with the water tank (2), and the heat exchange pipe (16) is arranged in an S shape in the water tank (2).
3. The device for preserving lychees according to claim 2, characterized in that: The side of the cabinet (11) is provided with a carbon dioxide storage bottle (31), the gas outlet of the carbon dioxide storage bottle (31) is provided with a gas injection pipe (32), the top of the cabinet (11) is provided with an exhaust pipe (33), the exhaust pipe (33) is provided with a control valve, and one end of the heat exchange pipe (16) away from the vortex pipe nozzle (14) penetrates the side wall of the cabinet (11) and is connected with the outside.
4. The device for preserving lychees according to claim 3, characterized in that: The surface of the heat exchange pipe (16) is uniformly fixedly connected with a plurality of first fins (41), the bottom of the water tank (2) is fixedly connected with a heat conduction plate (42), and the bottom of the heat conduction plate (42) is fixedly connected with a plurality of second fins (43).
5. The device for preserving lychees according to claim 4, characterized in that: The bottom of the water tank (2) is fixedly connected with a wind scoop (51), the second fins (43) are located in the inside of the wind scoop (51), the end of the wind scoop (51) is fixedly connected with a fan (53), one end of the wind scoop (51) close to the fan (53) is provided in a triangular structure, and the other end of the wind scoop (51) away from the fan (53) is provided with an opening (52).
6. The device for preserving lychees according to claim 5, characterized in that: The end of the heat exchange pipe (16) away from the vortex pipe nozzle (14) is provided with a one-way valve.