High-humidity-pressure-difference pre-cooling storage

Abstract

The utility model discloses a high-humidity pressure difference pre-cooling storage which comprises a box body, a heat preservation partition plate, an air duct, a first water curtain, an evaporator, at least one second water curtain, a spraying device and a strong exhaust fan. Wherein the heat preservation partition plate is arranged in the box body and divides the box body into a fruit and vegetable containing area and an equipment containing area; a first shutter is arranged on the left side of the heat preservation partition plate. An air inlet of the air duct is communicated with the first shutter; the first water curtain is arranged in the air duct; the evaporator is adjacent to the first water curtain; the second water curtain is adjacent to the evaporator; the spraying device is connected with the first water curtain and the second water curtain. And an air inlet of the strong exhaust fan is communicated with an air outlet of the air duct. Atomized water molecules pass through fruits and vegetables along with air, so that the fruits and the vegetables are cooled, and meanwhile, water loss of the fruits and the vegetables can be avoided; therefore, the refrigeration temperature and humidity of foods such as fruits and vegetables are more uniform, the pre-cooling speed is greatly increased, and the storage time of the foods is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of precooling equipment technology, and in particular to a high humidity differential pressure precooling chamber. Background Technology

[0002] With the vigorous development of transportation networks across the country, people have gradually been able to eat all kinds of food from all over the country; however, in order to keep food fresh for a longer period of time, people usually use equipment such as cold storage and refrigerated trucks to process, store and transport food, thus promoting the development of food refrigeration and preservation technology.

[0003] In existing food refrigeration and preservation technologies, air cooling is commonly used for food preservation. For example, patent document CN202675502U discloses a novel air-cooled evaporator, which mentions that in a cold storage, cold air generated by the evaporator is blown by fans to form cold air. However, due to the limitations of the installation position of the fans and evaporators in the cold storage, the cold air blown out is unevenly distributed in space. Areas near the air vent cool down quickly and have low temperatures, while areas far from the air vent cool down slowly and have high temperatures, which affects the quality and freshness of the food. On the other hand, the fans are designed to accelerate the flow of cold air in the cold storage and make the cold air distribution more even. However, food will gradually lose moisture under the air flow. This means that accelerating the air flow will make the food more prone to dehydration and drying, causing food, especially fruits and vegetables, to lose its fresh taste and nutrients, resulting in poor preservation effect.

[0004] To address this issue, differential pressure precooling is often employed. However, in existing technologies, differential pressure precooling devices typically spray directly onto the food during the atomization and humidification process. This can lead to uneven moisture levels, with some food items experiencing excessively high humidity while others remain too dry, making the food more susceptible to spoilage and resulting in significant cost waste. Summary of the Invention

[0005] According to an embodiment of the present invention, a high humidity and pressure differential precooling chamber is provided, comprising:

[0006] The container is hollow, and a door is provided on one side of the container.

[0007] Insulated partitions are installed inside the box, dividing the box into a fruit and vegetable storage area and an equipment storage area;

[0008] The insulation partition has a first louver on the left side, a second louver on the right side, and a third louver on the top.

[0009] The air duct has an air inlet connected to the insulation partition and is also connected to the first louver.

[0010] The first water curtain is installed inside the air duct.

[0011] Evaporator, arranged adjacent to the first water curtain;

[0012] At least one second water curtain is provided, which is located in the air duct and arranged adjacent to the evaporator.

[0013] A spraying device is connected to the first water curtain and the second water curtain respectively, and is used to keep the first water curtain and the second water curtain moist.

[0014] The forced exhaust fan has its air inlet connected to the air outlet of the duct, and its air outlet is connected to the second and third louvers respectively.

[0015] Furthermore, the spraying device includes: a water pump, a water tank, a first spray pipe, and several second spray pipes;

[0016] The input end of the water pump is connected to the water tank, and the output end is connected to the first spray pipe and the second spray pipe respectively.

[0017] The water tank is located below the first and second water curtains and can recycle the water flowing out from the first and second water curtains;

[0018] The first spray pipe is located at the top of the first water curtain;

[0019] The second spray pipe corresponds to the second water curtain and is installed on top of the corresponding second water curtain;

[0020] The first and second spray pipes are each equipped with a number of spray holes.

[0021] Furthermore, a filter cover is installed at the lower end of the water pump.

[0022] Furthermore, a pneumatic valve is also installed on the second spray pipe, which is used to control the on / off state of the second spray pipe.

[0023] Furthermore, the evaporator is connected to an external condenser unit.

[0024] Furthermore, it also includes: a canvas and a spring roller blind assembly;

[0025] The retractable spring roller shutter device is installed on the thermal insulation partition;

[0026] The canvas is rolled up and fitted onto the spring roller shutter device. One end is fixedly connected to the spring roller shutter device, and the other end of the canvas can be pulled to extend the canvas.

[0027] Furthermore, it also includes: a height adjustment frame, on which several crossbars are provided for adjusting the height of the canvas.

[0028] According to the high humidity and pressure difference pre-cooling chamber of this utility model embodiment, the atomized water molecules pass through the second and third louvers with the air from above and to the right of the fruits and vegetables, cooling the fruits and vegetables while ensuring that their moisture is not lost; while cooling, a multi-stage atomization effect is achieved, making the water molecule particles smaller, thereby making the cooling temperature and humidity of fruits, vegetables and other foods more uniform, greatly improving the pre-cooling speed and extending the food preservation time.

[0029] It should be understood that both the foregoing general description and the following detailed description are exemplary and intended to provide further illustration of the claimed technology. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure after removing the cabinet door according to an embodiment of the present utility model;

[0031] Figure 2 This is a schematic diagram of the internal structure according to an embodiment of the present utility model;

[0032] Figure 3 for Figure 2 Rear view;

[0033] Figure 4 for Figure 2 The right view;

[0034] Figure 5 This is a schematic diagram of the structure with a cabinet door according to an embodiment of the present utility model;

[0035] Figure 6 This is a partial structural schematic diagram according to an embodiment of the present utility model;

[0036] Figure 7 for Figure 6 The left view;

[0037] Figure 8 for Figure 7 Sectional view along axis AA;

[0038] Figure 9 This is a partial structural diagram of a pneumatic valve according to an embodiment of the present invention. Detailed Implementation

[0039] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings, further illustrating the present invention.

[0040] First, combine Figures 1-9 The high humidity and pressure difference pre-cooling warehouse according to the embodiments of this utility model is used in the field of fruit and vegetable preservation technology and has a wide range of applications.

[0041] like Figures 1-9As shown, the high humidity and pressure differential precooling chamber of this utility model embodiment includes:

[0042] Box 1 is hollow and used to hold fruits and vegetables. Box 1 has a door 11 on one side.

[0043] Insulation partition 2 is installed inside the box 1, dividing the box 1 into a fruit and vegetable storage area 12 and an equipment storage area 13.

[0044] The insulation partition 2 has a first louver 21 on the left side, a second louver 22 on the right side, and a third louver 23 on the top.

[0045] Air duct 3, the air inlet of air duct 3 is connected to the thermal insulation partition 2, and is connected to the first louver 21;

[0046] The first water curtain 4 is installed inside the air duct 3 and plays the role of the first stage of atomization.

[0047] Evaporator 5 is arranged adjacent to the first water curtain 4, and plays a role in cooling and secondary atomization.

[0048] At least one second water curtain 6 is provided, which is located in the air duct 3 and arranged adjacent to the evaporator 5, and plays a third-stage atomization role.

[0049] The spray device 7 is connected to the first water curtain 4 and the second water curtain 6 respectively, and is used to keep the first water curtain 4 and the second water curtain 6 moist.

[0050] Forced exhaust fan 8, the air inlet of forced exhaust fan 8 is connected to the air outlet of air duct 3, and the air outlet of forced exhaust fan 8 is connected to the second louver 22 and the third louver 23 respectively.

[0051] The bottom of the first water curtain 4 and the second water curtain 6 are provided with drainage holes;

[0052] Air duct 3, first water curtain 4, second water curtain 6, evaporator 5, spray device 7 and forced exhaust fan 8 are installed in equipment storage area 13;

[0053] The forced exhaust fan 8 draws air from the container 1 containing the product into the air inlet of the air duct 3, and after passing through the first water curtain 4, evaporator 5, and second water curtain 6, it is atomized and then sent into the container 1.

[0054] Furthermore, such as Figures 5-9 As shown, in this embodiment, the spraying device 7 includes: a water pump 71, a water tank 72, a first spray pipe 73, and a plurality of second spray pipes 74;

[0055] The input end of the water pump 71 is connected to the water tank 72, and the output end is connected to the first spray pipe 73 and the second spray pipe 74 respectively.

[0056] Water tank 72 is located below the first water curtain 4 and the second water curtain 6, and can recycle water flowing out from the first water curtain 4 and the second water curtain 6;

[0057] The first spray pipe 73 is located at the top of the first water curtain 4;

[0058] The second spray pipe 74 corresponds to the second water curtain 6 and is installed on top of the corresponding second water curtain 6;

[0059] The first spray pipe 73 and the second spray pipe 74 are respectively provided with a number of spray holes.

[0060] The water pump 71 draws water from the water tank 72 and sprays it onto the first water curtain 4 and / or the second water curtain 6 through the spray holes to keep the first water curtain 4 and the second water curtain 6 moist. Some of the water flows back to the water tank 72 through the drain hole.

[0061] Furthermore, in this embodiment, the water pump 71 is a variable frequency submersible pump.

[0062] Furthermore, such as Figure 6 As shown, in this embodiment, a filter cover 711 is provided at the lower end of the water pump 71.

[0063] Furthermore, such as Figure 9 As shown, in this embodiment, a pneumatic valve 75 is also provided on the second spray pipe 74. The pneumatic valve 75 is used to control the opening and closing of the second spray pipe 74. Under normal circumstances, the pneumatic valve 75 is in a normally closed state. When the humidity requirement inside the box 1 is high, the pneumatic valve 75 can be opened.

[0064] Furthermore, in this embodiment, the evaporator 5 is connected to an external condenser unit.

[0065] Furthermore, such as Figures 2-4 As shown, in this embodiment, it also includes: canvas 91 and spring roller blind device 92 (prior art);

[0066] The retractable spring roller shutter device 92 is installed on the thermal insulation partition 2;

[0067] The canvas 91 is rolled up and sleeved on the spring roller shutter device 92. One end is fixedly connected to the spring roller shutter device 92, and the other end of the canvas 91 can be pulled to extend the canvas 91.

[0068] Furthermore, such as Figures 3-4 As shown, in this embodiment, it also includes: a height adjustment frame 93, on which a plurality of crossbars 931 are provided, the plurality of crossbars 931 being used to adjust the height of the canvas 91.

[0069] Working principle: First, place the fruits and vegetables into the perforated box, then stack the boxes of fruits and vegetables. Open the box door 11 and use a forklift to place the stacked fruits and vegetables into the fruit and vegetable storage area 12 of the box 1. Then, adjust the canvas 91 to the same height as the fruit and vegetable stack, and pull the canvas 91 to create a negative pressure zone below the canvas 91. Turn on the evaporator 5, water pump 71, and forced exhaust fan 8. The hot air in the fruit and vegetable storage area 12 of the box 1 enters the air duct 3 through the first louver 21, and then is atomized by the first water curtain 4. It is then cooled and atomized again by the evaporator 5. Then, the atomized gas is atomized again by the second water curtain 6 and discharged by the forced exhaust fan 8. It enters the fruit and vegetable storage area 12 of the box 1 through the second louver 22 and the third louver 23, passes through the fruits and vegetables, takes away the heat generated by the fruits and vegetables, and cools and moisturizes the fruits and vegetables. Then it enters the air duct 3 again, and so on.

[0070] Above, refer to Figures 1-9 The present invention describes a high humidity and pressure differential precooling chamber according to an embodiment of the present invention. Atomized water molecules pass through the second louver 22 and the third louver 23 with the air, passing above and to the right of fruits and vegetables, cooling the fruits and vegetables while ensuring that their moisture is not lost. The multi-stage atomization effect is achieved during the cooling process, making the water molecule particles smaller, thereby making the cooling temperature and humidity of fruits, vegetables and other foods more uniform, greatly improving the precooling speed and extending the food preservation time.

[0071] It should be noted that, in this specification, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes that element.

[0072] Although the present invention has been described in detail through the preferred embodiments above, it should be understood that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions to the present invention will be apparent to those skilled in the art after reading the above content. Therefore, the scope of protection of the present invention should be defined by the appended claims.

Claims

1. A high-humidity pressure-difference precooling chamber, characterized by comprising: The utility model relates to a refrigeration box for fruits and vegetables, comprising: a box body in a hollow state, one side of the box body being provided with a box door; a heat insulation partition plate arranged in the box body, the box body being divided into a fruits and vegetables storage area and an equipment storage area by the heat insulation partition plate; a first louver arranged on the left side of the heat insulation partition plate, a second louver arranged on the right side of the heat insulation partition plate, and a third louver arranged on the top of the heat insulation partition plate; an air duct, an air inlet of the air duct being connected to the heat insulation partition plate and being in communication with the first louver; a first water curtain arranged in the air duct; an evaporator arranged adjacent to the first water curtain; at least one second water curtain arranged in the air duct and arranged adjacent to the evaporator; a spraying device connected to the first water curtain and the second water curtain respectively, for moisturizing the first water curtain and the second water curtain; a strong exhaust fan, an air inlet of the strong exhaust fan being in communication with an air outlet of the air duct, and an air outlet of the strong exhaust fan being in communication with the second louver and the third louver respectively.

2. The high wet pressure differential pre-cooling chamber of claim 1, wherein, The spraying device comprises a water pump, a water tank, a first spraying pipe and a plurality of second spraying pipes; an input end of the water pump being in communication with the water tank, and output ends of the water pump being in communication with the first spraying pipe and the second spraying pipes respectively; the water tank being arranged below the first water curtain and the second water curtain, and being capable of recovering water flowing out of the first water curtain and the second water curtain; the first spraying pipe being arranged on the top of the first water curtain; the second spraying pipes corresponding to the second water curtains and being arranged on the top of the corresponding second water curtains; a plurality of spraying holes being arranged on the first spraying pipe and the second spraying pipes respectively.

3. The high wet pressure differential pre-cooling chamber of claim 2, wherein, A filter cover is arranged on the lower end of the water pump.

4. The high wet pressure differential pre-cooling chamber of claim 2, wherein, A pneumatic valve is further arranged on the second spraying pipe, the pneumatic valve being used for controlling the on-off of the second spraying pipe.

5. The high wet pressure differential pre-cooling chamber as claimed in claim 1, wherein, The evaporator is connected to an external condensing unit.

6. The high wet pressure differential pre-cooling chamber of claim 1, wherein, The utility model further comprises a canvas and a spring roller blind device; the spring roller blind device being arranged on the heat insulation partition plate; the canvas being in a roll shape and being sleeved on the spring roller blind device, one end of the canvas being fixedly connected to the spring roller blind device, and the other end of the canvas being capable of being pulled to elongate the canvas.

7. The high-humidity pressure-differential precooling chamber of claim 6, wherein, The utility model further comprises a height adjusting frame, a plurality of horizontal rods being arranged on the height adjusting frame, and the plurality of horizontal rods being used for adjusting the height of the canvas.

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