A vacuum pre-cooling tank

Abstract

The utility model is suitable for vacuum cooling preservation technical field provides a kind of vacuum precooling tank, include: for the cooling preservation of vegetables is used to the vacuum precooling tank body;Setting in the mounting plate of the vacuum precooling tank body, fixed mounting has spray pipe on the mounting plate, multiple atomizing nozzles are provided on the spray pipe, first hose is connected on the spray pipe;Fixed mounting is connected on the vacuum precooling tank body Connection pipe, the connection pipe and the first hose are communicated.The vacuum precooling tank provided by the utility model can cool and preserve fruits and vegetables, and the height of the atomizing nozzle can be adjusted according to the actual needs, so that the atomized water can accurately aim at the fruits and vegetables, thereby effectively controlling the amount of water spraying, preventing the appearance, nutritional value and flavor of vegetables from being reduced due to improper water spraying, and improving the cooling and preservation effect of vegetables.

Description

Technical Field

[0001] This utility model relates to the field of vacuum cooling and preservation technology, and in particular to a vacuum precooling box. Background Technology

[0002] A vacuum precooling chamber is a cooling device that uses a vacuum environment to reduce air pressure, causing water to evaporate rapidly and absorb heat, thereby achieving rapid cooling of agricultural products and food.

[0003] When cooling and preserving fruits and vegetables, they are placed in a vacuum precooling chamber. The pressure inside the chamber is then reduced to alter the boiling point of water, causing surface water and internal free ion water to evaporate and boil at low temperatures, thus removing heat and achieving cooling. For vegetables more sensitive to water loss, such as some high-end leafy greens, the vacuum precooling chamber sprays a small amount of water through internal atomizing nozzles to compensate for evaporation loss and prevent wilting. However, the height of the atomizing nozzles in some existing vacuum precooling chambers is often fixed, and the distance between the nozzle and the vegetables cannot be adjusted. If water is not sprayed onto vegetables effectively, the amount of water cannot be properly controlled. If too little water is sprayed, the vegetable leaves and stems will become soft and wrinkled due to cell dehydration, losing their firm and plump appearance. If too much water is sprayed, it will dissolve water-soluble nutrients (such as vitamin C, B vitamins, minerals, etc.) and sugars in the vegetable cells. In a vacuum environment, the permeability of the cell membrane will increase, and these water-soluble nutrients will be "drawn away" along with the water or left on the surface and eventually discharged from the system, resulting in a decrease in the nutritional value and flavor of the vegetables, thereby reducing the effectiveness of cooling and preserving fruits and vegetables. Utility Model Content

[0004] To address the technical problem mentioned in the background art, where the height of the atomizing nozzles on some existing vacuum precooling boxes is often fixed, the distance between the atomizing nozzles and vegetables cannot be adjusted, and the atomized water cannot be sprayed onto the vegetables effectively, resulting in poor control of the water spray volume and reduced cooling and preservation effects on vegetables, this utility model provides a vacuum precooling box.

[0005] The vacuum precooling box provided by this utility model includes: a vacuum precooling box body for cooling and preserving vegetables; an installation plate disposed inside the vacuum precooling box body, a spray pipe fixedly installed on the installation plate, a plurality of atomizing nozzles disposed on the spray pipe, and a first flexible hose connected to the spray pipe; a connecting pipe fixedly installed on the vacuum precooling box body, the connecting pipe being connected to the first flexible hose; and a lifting mechanism assembled on the vacuum precooling box body and the installation plate, the lifting mechanism being used to adjust the water spraying height of the atomizing nozzles.

[0006] Preferably, the lifting mechanism includes: a first servo motor fixedly installed on the outer wall of one side of the vacuum precooling chamber body; a mounting shaft rotatably installed on the vacuum precooling chamber body, wherein the output shaft of the first servo motor is connected to one end of the mounting shaft via a coupling; and a winch fixedly sleeved on the mounting shaft, wherein a pull rope is wound on the winch, and one end of the pull rope is fixedly connected to the top of the mounting plate.

[0007] Preferably, the vacuum precooling chamber body is provided with a cleaning mechanism, which is used to clean impurities that have fallen onto the inner wall of the bottom of the vacuum precooling chamber body. The cleaning mechanism includes: a fan fixedly installed on the outer wall of one side of the vacuum precooling chamber body, with a second flexible hose connected to the air outlet of the fan; a cleaning pipe disposed inside the vacuum precooling chamber body, which is connected to the second flexible hose and has multiple air outlets; and an adjustment mechanism assembled on the vacuum precooling chamber body and the cleaning pipe, which is used to adjust the air outlet direction of the cleaning pipe.

[0008] Preferably, the adjustment mechanism includes: two connecting shafts symmetrically rotatably mounted on the vacuum precooling chamber body, the two connecting shafts being respectively connected to both ends of the cleaning tube; and a second servo motor fixedly mounted on one side of the outer wall of the vacuum precooling chamber body, the output shaft of the second servo motor being connected to one end of one of the connecting shafts via a coupling.

[0009] Preferably, a filter box is provided on the air inlet end of the fan, and the filter box is used to filter the air drawn in by the fan.

[0010] Preferably, a slider is fixedly installed on the mounting plate, and a sliding rod is fixedly installed on the inner wall of the vacuum precooling chamber body, with the sliding rod and the slider being slidably connected.

[0011] Preferably, a temperature sensor and a humidity sensor are provided inside the vacuum precooling chamber. The temperature sensor is used to monitor the temperature inside the vacuum precooling chamber, and the humidity sensor is used to monitor the humidity inside the vacuum precooling chamber.

[0012] Compared with related technologies, the vacuum precooling chamber provided by this utility model has the following beneficial effects: This utility model provides a vacuum precooling box that can cool and preserve fruits and vegetables. It can also adjust the height of the atomizing nozzles according to actual needs, so that the atomized water can be accurately aimed at the fruits and vegetables, thereby facilitating effective control of the amount of water sprayed. This can effectively prevent the decline in the appearance, nutritional value and flavor of vegetables due to improper water spraying, and improve the cooling and preservation effect of vegetables. Attached Figure Description

[0013] Figure 1 A front view schematic diagram of a preferred embodiment of the vacuum precooling box provided by this utility model; Figure 2 This is a frontal sectional view of the present invention. Figure 3 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 4 for Figure 2 An enlarged structural diagram of part B shown in the figure; Figure 5 This is a side view of the cleaning tube, connecting shaft, and second servo motor in this utility model.

[0014] The following are the labels in the diagram: 1. Vacuum precooling chamber body; 2. Mounting plate; 3. Spray pipe; 4. Atomizing nozzle; 5. First hose; 6. Connecting pipe; 7. First servo motor; 8. Mounting shaft; 9. Winch; 10. Pull rope; 11. Fan; 12. Second hose; 13. Cleaning pipe; 14. Connecting shaft; 15. Second servo motor; 16. Slider; 17. Slide rod. Detailed Implementation

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification and the foregoing drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification or the foregoing drawings are used to distinguish different objects, not to describe a specific order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention 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, and therefore should not be construed as a limitation of the present invention.

[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0017] This utility model embodiment provides a vacuum precooling box, such as Figure 1-5As shown, the vacuum precooling box includes: a vacuum precooling box body 1 for cooling and preserving vegetables; a mounting plate 2 disposed inside the vacuum precooling box body 1, a spray pipe 3 fixedly mounted on the mounting plate 2, a plurality of atomizing nozzles 4 disposed on the spray pipe 3, and a first flexible hose 5 connected to the spray pipe 3; a connecting pipe 6 fixedly mounted on the vacuum precooling box body 1, the connecting pipe 6 being connected to the first flexible hose 5; and a lifting mechanism assembled on the vacuum precooling box body 1 and the mounting plate 2, the lifting mechanism being used to adjust the spraying height of the atomizing nozzles 4.

[0018] In this embodiment, when cooling and preserving vegetables, the vegetables are placed inside the vacuum precooling chamber 1. For vegetables that are sensitive to water loss, the lifting mechanism is first activated via a SIMATICS7-1200 controller located on one side of the device to adjust the distance between the atomizing nozzle 4 and the vegetables, based on the height of the vegetables. This ensures that the water atomized by the nozzle 4 is precisely aimed at the vegetables, facilitating effective control of the water spray volume. This effectively prevents the decline in the appearance, nutritional value, and flavor of the vegetables due to improper water spraying, thus improving the preservation of the vegetables. To achieve a cooling and preservation effect, the connecting pipe 6 is then connected to the corresponding water pump outlet. Pressurized water enters the first hose 5 through the connecting pipe 6. Subsequently, the water is atomized and precisely sprayed onto the vegetables through the atomizing nozzle 4 on the spray pipe 3. After watering, the baffle door on the vacuum precooling box body 1 is closed to reduce the air pressure of the vacuum precooling box body 1, thereby changing the boiling point of the water. This causes the surface water and internal free ion water of the fruits and vegetables to evaporate and boil at a low temperature, thus carrying away heat to achieve the purpose of cooling. The working principle of the vacuum precooling box body 1 is existing technology and will not be elaborated here.

[0019] In a further preferred embodiment of the present invention, the lifting mechanism includes: a first servo motor 7 fixedly installed on the outer wall of one side of the vacuum precooling chamber body 1; a mounting shaft 8 rotatably installed on the vacuum precooling chamber body 1, wherein the output shaft of the first servo motor 7 is connected to one end of the mounting shaft 8 via a coupling; and a winch 9 fixedly sleeved on the mounting shaft 8, wherein a pull rope 10 is wound on the winch 9, and one end of the pull rope 10 is fixedly connected to the top of the mounting plate 2.

[0020] In this embodiment, when it is necessary to adjust the spraying height of the atomizing nozzle 4, the controller starts the first servo motor 7, whose output shaft rotates to drive the mounting shaft 8 to rotate, thereby causing the winch 9 to rotate. The lifting and lowering of the mounting plate 2, the spray pipe 3, and the atomizing nozzle 4 are achieved by pulling the rope 10, thereby flexibly adjusting the distance between the atomizing nozzle 4 and the vegetables. This allows the water atomized by the atomizing nozzle 4 to be accurately aimed at the vegetables, facilitating effective control of the water spraying volume. This effectively prevents the decline in the appearance, nutritional value, and flavor of vegetables due to improper water spraying, and improves the cooling and preservation effect of vegetables.

[0021] In a further preferred embodiment of this utility model, a cleaning mechanism is provided on the vacuum precooling chamber body 1. The cleaning mechanism is used to clean impurities that have fallen onto the inner wall of the bottom of the vacuum precooling chamber body 1. The cleaning mechanism includes: a fan 11 fixedly installed on the outer wall of one side of the vacuum precooling chamber body 1, with a second flexible hose 12 connected to the air outlet of the fan 11; a cleaning pipe 13 disposed inside the vacuum precooling chamber body 1, the cleaning pipe 13 being connected to the second flexible hose 12, and having multiple air outlets; and an adjustment mechanism assembled on the vacuum precooling chamber body 1 and the cleaning pipe 13, the adjustment mechanism being used to adjust the air outlet direction of the cleaning pipe 13.

[0022] In this embodiment, when it is necessary to clean the impurities that have fallen onto the bottom inner wall of the vacuum precooling chamber body 1 during actual use, the fan 11 is started, and the air force is transmitted to the cleaning pipe 13 through the second hose 12 and then blown out from multiple air outlets to blow the impurities away from the bottom inner wall. During cleaning, the adjustment mechanism is activated to adjust the air outlet direction of the cleaning pipe 13, so that the debris that has fallen into the vacuum precooling chamber body 1 can be cleaned comprehensively, reducing the cleaning burden on the staff and providing convenience for the staff.

[0023] In a further preferred embodiment of the present invention, the adjustment mechanism includes: two connecting shafts 14 symmetrically rotatably mounted on the vacuum precooling chamber body 1, the two connecting shafts 14 being respectively connected to both ends of the cleaning pipe 13; and a second servo motor 15 fixedly mounted on one side outer wall of the vacuum precooling chamber body 1, the output shaft of the second servo motor 15 being connected to one end of one of the connecting shafts 14 via a coupling.

[0024] In this embodiment, when it is necessary to adjust the air outlet direction of the cleaning pipe 13 to better clean the impurities that have fallen on the bottom inner wall of the vacuum precooling chamber body 1, the second servo motor 15 is started. The output shaft of the second servo motor 15 starts to rotate, and drives the connecting shaft 14 connected to it to rotate through the coupling. Since the two ends of the cleaning pipe 13 are respectively connected to the two connecting shafts 14, and the connecting shafts 14 can rotate on the vacuum precooling chamber body 1, the cleaning pipe 13 will change its angle as the connecting shafts 14 rotate, thereby realizing the adjustment of the air outlet direction, so as to comprehensively clean the debris that has fallen inside the vacuum precooling chamber body 1.

[0025] In a further preferred embodiment of the present invention, a filter box is provided on the air inlet end of the fan 11, and the filter box is used to filter the air drawn in by the fan 11.

[0026] In this embodiment, when the fan 11 is started, outside air first enters the filter box, and the filter screen inside the filter box can filter the incoming air, effectively intercepting dust, particulate matter and other impurities in the air.

[0027] In a further preferred embodiment of the present invention, a slider 16 is fixedly installed on the mounting plate 2, and a sliding rod 17 is fixedly installed on the inner wall of the vacuum precooling box body 1, wherein the sliding rod 17 and the slider 16 are slidably connected.

[0028] In this embodiment, when the lifting mechanism drives the mounting plate 2 to move up and down, the slider 16 will slide along the slide rod 17. Since the slide rod 17 is fixed on the inner wall of the vacuum precooling box body 1, it provides a stable track for the slider 16 to slide, so that the mounting plate 2 can remain stable during the lifting process and will not shake or deviate.

[0029] In a further preferred embodiment of the present invention, a temperature sensor and a humidity sensor are provided inside the vacuum precooling chamber body 1. The temperature sensor is used to monitor the temperature inside the vacuum precooling chamber body 1, and the humidity sensor is used to monitor the humidity inside the vacuum precooling chamber body 1.

[0030] In this embodiment, a temperature sensor of model PT100 is used to monitor the temperature inside the vacuum precooling chamber 1, and a humidity sensor of model Vaisala HUMICAP HMT120 is used to monitor the humidity inside the vacuum precooling chamber 1, so that the staff can easily understand the temperature and humidity inside the vacuum precooling chamber 1.

[0031] In summary, compared with related technologies, this vacuum precooling chamber body 1 can cool and preserve fruits and vegetables, and the height of the atomizing nozzle 4 can be adjusted according to actual needs, so that the atomized water can be accurately aimed at the fruits and vegetables, thereby facilitating effective control of the amount of water sprayed. This can effectively prevent the decline in the appearance, nutritional value and flavor of vegetables due to improper water spraying, and improve the cooling and preservation effect of vegetables.

[0032] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0033] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A vacuum precooling chamber, characterized in that, include: The main body of a vacuum precooling box used for cooling and preserving vegetables; An installation plate is installed inside the vacuum precooling chamber body. A spray pipe is fixedly installed on the installation plate. Multiple atomizing nozzles are provided on the spray pipe. A first flexible hose is connected to the spray pipe. A connecting pipe is fixedly installed on the body of the vacuum precooling chamber, and the connecting pipe is connected to the first flexible hose; The lifting mechanism, which is mounted on the vacuum precooling chamber body and the mounting plate, is used to adjust the water spraying height of the atomizing nozzle.

2. The vacuum pre-chilling tank of claim 1, wherein, The lifting mechanism includes: A first servo motor is fixedly installed on one side of the outer wall of the vacuum precooling chamber body; The mounting shaft installed on the vacuum precooling chamber body is rotated, and the output shaft of the first servo motor is connected to one end of the mounting shaft through a coupling; A winch is fixedly mounted on the mounting shaft, and a pull rope is wound around the winch. One end of the pull rope is fixedly connected to the top of the mounting plate.

3. The vacuum pre-cooling tank of claim 1, wherein, The vacuum precooling chamber body is equipped with a cleaning mechanism, which is used to clean impurities that have fallen onto the inner wall of the bottom of the vacuum precooling chamber body. The cleaning mechanism includes: A fan is fixedly installed on one side of the outer wall of the vacuum precooling chamber body, and a second flexible hose is connected to the air outlet end of the fan; A cleaning pipe is installed inside the vacuum precooling chamber body. The cleaning pipe is connected to the second flexible hose, and multiple air outlets are provided on the cleaning pipe. An adjustment mechanism is mounted on the vacuum precooling chamber body and the cleaning pipe, the adjustment mechanism being used to adjust the air outlet direction of the cleaning pipe.

4. The vacuum pre-cooling tank of claim 3, wherein The adjustment mechanism includes: Two connecting shafts are symmetrically rotated and mounted on the body of the vacuum precooling chamber, and the two connecting shafts are respectively connected to both ends of the cleaning tube; A second servo motor is fixedly installed on one side of the outer wall of the vacuum precooling chamber body. The output shaft of the second servo motor is connected to one end of one of the connecting shafts via a coupling.

5. The vacuum pre-cooling tank of claim 3, wherein, A filter box is installed on the air inlet of the fan, and the filter box is used to filter the air drawn in by the fan.

6. The vacuum pre-chilling tank of claim 1, wherein, A slider is fixedly installed on the mounting plate, and a sliding rod is fixedly installed on the inner wall of the vacuum precooling box body. The sliding rod and the slider are slidably connected.

7. The vacuum pre-chilling tank of claim 1, wherein, The vacuum precooling chamber is equipped with a temperature sensor and a humidity sensor. The temperature sensor is used to monitor the temperature inside the vacuum precooling chamber, and the humidity sensor is used to monitor the humidity inside the vacuum precooling chamber.

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