A vertical account cyclone pressure difference pre-cooling device
Patent Information
- Application Number
- CN202521810136.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-25
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-08-25
AI Technical Summary
[0004]针对上述现有技术中的至少一个问题，本实用新型的目的是提供一种立帐旋流压差预冷装置，解决现有技术中预冷速度慢、设备繁重、成本高以及无法原位贮藏的问题，使其结构简单、成本低廉、拆装便捷、预冷效率显著提升，且可与贮藏一体化作业，适用于田间采摘后果蔬的快速预冷和原位贮藏
本实用新型提供的立帐旋流压差预冷装置，能够解决现有技术中预冷速度慢、设备繁重、成本高以及无法原位贮藏的问题；其结构简单、成本低廉；其制造和运输成本低，现场拆装便捷；其利用微动力旋流压差原理，预冷时间比传统静态预冷缩短约50%以上，预冷效率显著提升；其便于预冷和贮藏一体化作业，预冷结束后可直接在原位完成贮藏，无需转运或额外设备，减少操作流程和人力；其适用于多种果蔬、大多数托盘及多种码垛方式，可灵活调整风机参数，以满足不同产量需求，适用于田间采摘后果蔬的快速预冷和原位贮藏。
Smart Images
Figure CN224710419U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of post-harvest preservation equipment for fruits and vegetables, specifically relating to a vertical swirl differential pressure precooling device. Background Technology
[0002] During the harvesting process, fruits and vegetables picked from the field are prone to accumulating "field heat" due to sun exposure and increased ambient temperature. If heat is not dissipated in time, the quality of the fruits and vegetables can deteriorate, leading to moisture loss, softening, or even rotting, resulting in serious economic losses.
[0003] Currently used static precooling methods are inefficient and time-consuming, making it difficult to meet the speed and efficiency requirements of modern production. While technologies such as vacuum precooling and chilled water precooling can accelerate the cooling process, their equipment is expensive, bulky, and complex to install and maintain, making them unsuitable for the rapid deployment and in-situ storage needs of fruit and vegetable growing bases. Utility Model Content
[0004] To address at least one of the problems in the prior art, the purpose of this utility model is to provide a vortex pressure differential precooling device that solves the problems of slow precooling speed, heavy equipment, high cost, and inability to store in situ in the prior art. This device has a simple structure, low cost, convenient assembly and disassembly, significantly improved precooling efficiency, and can be integrated with storage operations. It is suitable for rapid precooling and in-situ storage of fruits and vegetables harvested in the field.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: A pre-cooling device for vortex pressure differential in a vertical tent, characterized in that it comprises: Fruit and vegetable turnover baskets; A flow guide cover is attached to the top of the fruit and vegetable turnover basket; the flow guide cover has a top opening and a bottom opening; A fan is installed on top of the air guide shroud; the fan is provided with an air inlet and an air outlet, and the air inlet is connected to the top opening; The tent body is installed outside the flow guide and the fruit and vegetable turnover basket; the fan is installed outside the tent body; the tent body has multiple small holes.
[0006] Preferably, the small hole is located at the bottom of the tent body. Preferably, the holes are arranged in an isosceles trapezoidal shape from bottom to top.
[0007] Preferably, the tent body includes a conical portion and a cylindrical portion, with the bottom of the conical portion connected to the top of the cylindrical portion.
[0008] Preferably, the fruit and vegetable turnover basket is a rectangular basket, and the flow guide is a rectangular cone; the cone part of the tent is a rectangular cone, and the cylindrical part is a rectangular cylindrical body.
[0009] Preferably, the fruit and vegetable turnover basket is a hollow basket.
[0010] Preferably, the fruit and vegetable turnover basket is placed on a tray.
[0011] Preferably, the air inlet and the top opening are connected to both ends of the PVC hose via clamps.
[0012] This utility model has the following advantages due to the adoption of the above technical solution: The pre-cooling device provided by this utility model can solve the problems of slow pre-cooling speed, heavy equipment, high cost, and inability to store in situ in the existing technology. It has a simple structure and low cost. Its manufacturing and transportation costs are low, and it is easy to assemble and disassemble on site. It uses the principle of micro-powered swirling pressure difference, which shortens the pre-cooling time by more than 50% compared with traditional static pre-cooling, and significantly improves the pre-cooling efficiency. It facilitates the integrated operation of pre-cooling and storage. After pre-cooling, storage can be completed directly in situ without the need for transfer or additional equipment, reducing operation procedures and manpower. It is suitable for a variety of fruits and vegetables, most pallets, and various stacking methods. The fan parameters can be flexibly adjusted to meet different production needs. It is suitable for rapid pre-cooling and in-situ storage of fruits and vegetables harvested in the field. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a tent vortex pressure differential precooling device provided in an embodiment of this utility model.
[0014] Figure 2 This is a schematic diagram of the precooling air flow state of the tent vortex pressure differential precooling device provided in this embodiment of the present invention.
[0015] Marked in the attached diagram: 1. Fruit and vegetable turnover baskets, 2. Flow guide, 3. Fan, 4. Tent body, 5. Pallet.
[0016] Figure 2 The middle arrow indicates the direction of the pre-cooling airflow. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", 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 system or component 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. The direction of the arrows in the figures represents the direction of liquid flow.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "assembly," "setup," and "connection" 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 based on the specific circumstances.
[0020] This utility model provides a pre-cooling device for fruit and vegetable turnover baskets with vortex pressure differential. By setting a guide hood and a fan on the top of the fruit and vegetable turnover basket and the guide hood, and covering the outside of the fruit and vegetable turnover basket and the guide hood with a tent, it is convenient to store the harvested fruits and vegetables in the fruit and vegetable turnover basket. By turning on the fan, the fruits and vegetables in the fruit and vegetable turnover basket inside the tent are pre-cooled. After the pre-cooling is completed, the fan and guide hood can be removed, and the edges of the tent can be sealed to achieve in-situ low-temperature storage of fruits and vegetables.
[0021] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0022] Example like Figure 1 As shown, this embodiment provides a vortex pressure differential precooling device, including a fruit and vegetable turnover basket 1, a flow guide hood 2, a fan 3, and a tent body 4. The flow guide hood 2 is fastened to the top of the fruit and vegetable turnover basket 1; the flow guide hood 2 has a top opening and a bottom opening; the fan 3 is installed on the top of the flow guide hood 2; the fan 3 has an air inlet and an air outlet, and the air inlet is connected to the top opening; the tent body 4 covers the outside of the flow guide hood 2 and the fruit and vegetable turnover basket 1; the fan 3 is located outside the tent body 4; the tent body 4 has multiple small holes.
[0023] like Figure 1 and Figure 2As shown in the figure, in use, the pre-cooling device of the vortex pressure differential in this embodiment involves placing the harvested fruits and vegetables into the fruit and vegetable turnover basket 1, and then attaching the guide hood 2 to the fruit and vegetable turnover basket 1; then installing the fan 3 on top of the guide hood 2, and covering the outside of the guide hood 2 and the fruit and vegetable turnover basket 1 with the tent body 4; then turning on the fan 3, the fruits and vegetables in the fruit and vegetable turnover basket 1 inside the tent body 4 are pre-cooled through the small holes on the tent body 4; after pre-cooling, the fan 3 and the guide hood 2 can be removed, and the edges of the tent body 4 can be sealed to achieve in-situ low-temperature storage of fruits and vegetables. During in-situ storage, an insulation layer can also be added to the outside of the tent body 4 to mitigate temperature and humidity fluctuations inside the tent body 4.
[0024] Specifically, the small hole is located at the bottom of the tent body 4. Moreover, the holes are arranged in an isosceles trapezoidal shape from bottom to top.
[0025] Specifically, the tent body 4 includes a cone section and a cylindrical section, with the bottom of the cone section connected to the top of the cylindrical section.
[0026] Furthermore, the fruit and vegetable turnover basket 1 is set as a rectangular basket, and the flow guide 2 is set as a rectangular cone; the cone part of the tent body 4 is set as a rectangular cone, and the cylindrical part is set as a rectangular cylindrical body.
[0027] Furthermore, the fruit and vegetable turnover basket 1 is designed as a hollow basket.
[0028] Furthermore, the fruit and vegetable turnover basket 1 is placed on the tray 5.
[0029] Specifically, the air inlet and the top opening are connected to both ends of a PVC (Polyvinyl chloride) hose via clamps. The hose is tightened with clamps to achieve a sealed connection between the air inlet and the top opening via the PVC hose. The clamps can be stainless steel metal hose clamps from existing technology products.
[0030] Specifically, the fruit and vegetable turnover basket 1 is made of HDPE (High Density Polyethylene). There are multiple fruit and vegetable turnover baskets 1, stacked from bottom to top. The tent body 4 is a perforated square-bottomed plastic tent. The side walls of the tent body 4 are perforated. The holes are round, with varying diameters. The holes are arranged in a rectangular or trapezoidal array.
[0031] The specific plan for drilling small holes is as follows: 10cm from the bottom, with a hole spacing of 10cm and a hole diameter of Ф2cm; drill 3 rows of holes on one side, with a row spacing of 10cm, and the number of holes in each row from bottom to top is 10, 8, and 6 respectively; a total of 96 holes are drilled on all four sides, with a total hole area of approximately 301 cm². 2 .
[0032] Tests showed that this perforation method effectively reduced the cooling rate and uniformity of the tomatoes. Using this method, the device can rapidly and uniformly lower the core temperature of thirty crates of tomatoes from 22°C to 10°C within seven hours, shortening the time by approximately 50% compared to traditional pre-cooling methods. This device is also suitable for other fruits and vegetables such as cucumbers, apples, pears, bottle gourds, pumpkins, zucchini, and eggplants, with pre-cooling efficiency generally improved by about 50%.
[0033] The air guide shroud 2 is made of PP (polypropylene) plastic square cone. The fan 3 can be a small axial flow fan with continuously variable speed, which can include an impeller, casing, and motor. The model of fan 3 can be Xinyifeng PF-100EC2. The top opening of the air guide shroud 2 connects to the air inlet of the fan, and the bottom opening covers the fruit and vegetable turnover basket 1.
[0034] The axial flow fan uses a high-speed turbocharger with a power of 97W, a speed of 3500 rpm, and a wind pressure of 535 Pa.
[0035] The bottom of the square cone-shaped fairing 2 has a length of 100cm, a width of 100cm, and a height of 40cm.
[0036] The top of the guide shroud 2 is connected to the axial flow fan at a cylindrical part, which is 8cm long and 10cm in diameter.
[0037] The square-bottomed tent body 4 is 100cm long, 100cm wide, 200cm high, and 0.05mm thick. Perforations begin 10cm from the bottom, spaced 10cm apart, with a diameter of Ф2cm. Three rows of perforations are drilled on one side of tent body 4, spaced 10cm apart, with 10, 8, and 6 small holes per row from bottom to top. A total of 96 perforations are drilled on the four sides, with a total area of approximately 301 cm². 2 . The tray 5 is configured as a rectangular tray, for example, a square tray 5. The bottom of the tent body 4 contacts the top surface of the tray 5.
[0038] The dimensions of the air guide hood 2 and the tent body 4, as well as the power of the fan 3, can be adjusted according to the dimensions of the pallet 5 and the stacking height of the fruit and vegetable turnover basket 1.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A pre-cooling device for vertical vortex pressure differential, characterized in that, include: Fruit and vegetable turnover basket (1); A flow guide (2) is attached to the top of the fruit and vegetable turnover basket (1); the flow guide (2) has a top opening and a bottom opening; A fan (3) is installed on top of the air guide (2); the fan (3) is provided with an air inlet and an air outlet, and the air inlet is connected to the top opening; The tent body (4) is covered outside the flow guide (2) and the fruit and vegetable turnover basket (1); the fan (3) is located outside the tent body (4); the tent body (4) has multiple small holes.
2. The tent-style vortex pressure differential precooling device according to claim 1, characterized in that, The small hole is located at the bottom of the tent body (4).
3. The tent-style vortex pressure differential precooling device according to claim 1, characterized in that, The holes are arranged in an isosceles trapezoidal shape from bottom to top.
4. The tent-style vortex pressure differential precooling device according to claim 1, characterized in that, The tent body (4) includes a conical section and a cylindrical section, with the bottom of the conical section connected to the top of the cylindrical section.
5. The tent-style swirl pressure differential precooling device according to claim 4, characterized in that, The fruit and vegetable turnover basket (1) is set as a rectangular basket, and the flow guide (2) is set as a rectangular cone; the cone part of the tent body (4) is set as a rectangular cone, and the cylindrical part is set as a rectangular cylindrical body.
6. The tent-style vortex pressure differential precooling device according to claim 1, characterized in that, The fruit and vegetable turnover basket (1) is set as a hollow basket.
7. The tent-style vortex pressure differential precooling device according to claim 1, characterized in that, The fruit and vegetable turnover basket (1) is placed on the tray (5).
8. The pre-cooling device for vertical vortex pressure differential according to any one of claims 1-7, characterized in that, The air inlet and the top opening are respectively connected to both ends of the PVC hose via clamps.