Sterilization and ethylene removal machine with built-in circulating air duct structure

Abstract

The utility model discloses a sterilization ethylene removal machine of built -in circulating air duct structure belongs to fruit and vegetable fresh -keeping technical field, including casing and the moving plate of sliding connection in the back slide groove of casing, and the flow guider is fixedly connected to casing inner wall top and bottom, and the upper filter screen and lower filter screen are fixedly connected respectively in the upper portion and lower portion of casing inner wall, and the baffle is fixedly connected between the upper filter screen and lower filter screen, and the activated carbon adsorption board and potassium permanganate adsorption board and another activated carbon adsorption board are fixedly connected in proper order from top to bottom in the front side of baffle, and the air current circulation hole of staggered distribution is set up on each adsorption board. The utility model discloses a forced closed loop air duct is built and cooperates the S type roundabout path of multilayer adsorption subassembly, and the problem of low air current circulation efficiency and incomplete purification of existing equipment is solved, reaches the effect of high -efficient sterilization ethylene removal and prolongs fruit and vegetable fresh -keeping period.

Description

Technical Field

[0001] This utility model relates to the field of fruit and vegetable preservation technology, and in particular to a sterilization and ethylene removal machine with a built-in circulating air duct structure. Background Technology

[0002] In the storage and logistics of fruits and vegetables, in order to effectively delay the ripening and aging of fruits and vegetables and prevent spoilage caused by microbial growth, it is necessary to strictly remove ethylene and sterilize the air in the storage environment. Existing technologies mainly rely on dedicated purification equipment. These devices have built-in adsorption filter materials or ozone generating components, which aim to reduce the concentration of ethylene and bacteria in the environment through physical adsorption or chemical oxidation.

[0003] However, existing sterilization and ethylene removal equipment often suffers from defects in its internal structural design, such as a single airflow organization pattern and low efficiency. The internal space lacks precise guidance and forced circulation planning for airflow paths, resulting in airflow often flowing in a straight line or spreading randomly within the equipment. This structural defect leads to insufficient contact time and limited contact area between air and the adsorption medium or sterilization agent, making it impossible to ensure that ethylene molecules in the airflow are completely adsorbed or decomposed. At the same time, due to the lack of an effective circulating air duct structure, dead air zones are formed in the enclosed space, causing ethylene gas accumulated in local areas to be unable to be transported to the purification area for treatment in a timely manner, thus severely limiting the overall purification efficiency of the equipment and the preservation effect of fruits and vegetables.

[0004] Therefore, this utility model proposes a sterilization and ethylene removal machine with a built-in circulating air duct structure to overcome the shortcomings of the prior art. Utility Model Content

[0005] In view of the problems existing in the sterilization and ethylene removal equipment, such as the single internal airflow organization, low airflow circulation efficiency, and uneven utilization of adsorption media, which lead to incomplete sterilization and ethylene removal effects, this utility model aims to provide a sterilization and ethylene removal machine with an improved structure and an internal circulating air duct structure that can effectively solve the above problems.

[0006] This utility model provides a sterilization and ethylene removal machine with a built-in circulating air duct structure, comprising: a housing, a chute opened on the rear side of the housing, and a movable plate slidably connected to the inner wall of the chute; a flow guide fixedly connected to the top and bottom of the inner wall of the housing, an upper filter fixedly connected to the upper part of the inner wall of the housing, a lower filter fixedly connected to the lower part of the inner wall of the housing, a partition fixedly connected between the upper filter and the lower filter, an activated carbon adsorption plate, a potassium permanganate adsorption plate, and another activated carbon adsorption plate fixedly connected to the front side of the partition and arranged sequentially from top to bottom, an airflow circulation fan fixedly connected to the lower part of the front side of the inner wall of the housing, and a miniature ozone generator fixedly connected to the lower part of the left and right sides of the inner wall of the housing.

[0007] The partition is vertically arranged inside the shell, physically dividing the space in the middle of the shell into two independent areas. Both the activated carbon adsorption plate and the potassium permanganate adsorption plate are provided with airflow circulation holes for airflow to pass through. The airflow circulation fan is configured in conjunction with the micro ozone generator to provide circulation power and sterilization medium.

[0008] Furthermore, the upper filter, the lower filter, and the partition are connected in a fixed manner to form a forced airflow channel. Through the guiding effect of the flow guide, the airflow forms a closed-loop circulation path inside the housing, forcing the airflow to repeatedly pass through the target to be treated and the multi-layer adsorption structure.

[0009] Preferably, there are two slides, and the two slides extend vertically along the rear side of the housing. The two sides of the movable plate are respectively embedded in the two slides to provide stable bilateral guide support and prevent the movable plate from getting stuck during movement.

[0010] Preferably, there are two flow guides located at the top of the inner wall of the housing, and one flow guide located at the top corner of the housing. There is one flow guide located at the bottom of the inner wall of the housing. By guiding the flow at multiple points, the efficiency of airflow turning is optimized and the vortex loss of airflow at the corner is reduced.

[0011] Preferably, the airflow circulation holes on the potassium permanganate adsorption plate are concentrated in the middle part of the potassium permanganate adsorption plate body, forcing the airflow to converge and flow towards the center.

[0012] Preferably, the airflow circulation holes on the activated carbon adsorption plate are dispersed on the left and right sides of the activated carbon adsorption plate body, forming a spatially staggered distribution with the openings on the potassium permanganate adsorption plate. This staggered opening design allows the airflow to bypass in an S-shaped path when passing through the adsorption layer, which significantly increases the contact path and reaction time between the airflow and the adsorption medium.

[0013] Preferably, the front end face of the activated carbon adsorption plate and the front end face of the potassium permanganate adsorption plate are both fixedly connected to the front side of the inner wall of the shell, thereby creating a closed hierarchical purification space in front of the partition, preventing bypass leakage of airflow, and ensuring that all airflow is treated by the adsorption medium.

[0014] Preferably, multiple airflow circulation fans are provided, and the multiple airflow circulation fans are arranged in a horizontal array on the front side of the inner wall of the housing to generate a wide and uniformly velocifying driving airflow that covers the entire cross-section inside the housing and avoids dead airflow zones.

[0015] Preferably, multiple micro ozone generators are provided, and the multiple micro ozone generators and the airflow circulation fan are all located in the lower middle part of the inner cavity of the housing. This close arrangement is conducive to the rapid mixing of ozone gas into the circulating airflow and diffusion to the entire cavity, thereby improving sterilization efficiency.

[0016] Preferably, the upper filter and the lower filter are distributed vertically and overlappingly along the vertical direction of the housing, ensuring smooth airflow during vertical flow, reducing flow resistance, and clearly defining the upper recirculation zone and the lower processing zone.

[0017] This utility model has the following beneficial effects: 1. This utility model solves the problem of incomplete purification caused by the chaotic airflow field and low circulation efficiency inside the existing sterilization and ethylene removal equipment by setting the upper and lower distributed guides on the inner wall of the shell and the partitions that divide the space, and cooperating with the airflow circulation fan. It achieves the effect of constructing a forced closed-loop air duct so that the airflow can pass smoothly and repeatedly through the target to be treated and the purification components, thereby significantly improving the operating efficiency.

[0018] 2. This utility model solves the problems of short contact time for direct airflow penetration of the filter layer and limited purification capacity of a single adsorption medium in the prior art by setting up multi-layer adsorption plates and opening airflow circulation holes at different positions on the plates to form a staggered distribution. It achieves the effect of forcing the airflow to flow around in an S-shaped path in the adsorption component to prolong the reaction time and thoroughly removing ethylene gas by utilizing the dual mechanism of physical adsorption by activated carbon and chemical oxidation by potassium permanganate.

[0019] 3. This utility model solves the problem that traditional fruit and vegetable preservation equipment has a single function and cannot simultaneously meet the needs of efficient sterilization and ethylene removal by integrating a micro ozone generator at the bottom of the sealed shell and working in coordination with the circulating adsorption system above. It achieves the effect of simultaneously realizing the oxidation sterilization treatment of the target and the deep purification of harmful gases in one cycle, thereby greatly extending the preservation period of fruits and vegetables. Attached Figure Description

[0020] Figure 1This is a perspective view of the sterilization and ethylene removal machine with a built-in circulating air duct structure proposed in this utility model; Figure 2 This is a front view of the sterilization and ethylene removal machine with a built-in circulating air duct structure proposed in this utility model; Figure 3 This is a cross-sectional view of the upper filter screen in the sterilizer and ethylene removal machine with a built-in circulating air duct structure proposed in this utility model. Figure 4 This is a cross-sectional view of the casing of the sterilizer and ethylene removal machine with a built-in circulating air duct structure proposed in this utility model.

[0021] Legend: 1. Shell; 2. Moving plate; 3. Flow guide; 4. Upper filter screen; 5. Baffle plate; 6. Activated carbon adsorption plate; 7. Potassium permanganate adsorption plate; 8. Lower filter screen; 9. Mini ozone generator; 10. Slide groove; 11. Airflow circulation fan; 12. Airflow circulation hole. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model. Example:

[0023] Please refer to Figures 1 to 4 This utility model provides a sterilization and ethylene removal machine with a built-in circulating air duct structure. The sterilization and ethylene removal machine with a built-in circulating air duct structure aims to solve the problems of low internal airflow circulation efficiency and uneven utilization of adsorption media in existing sterilization and ethylene removal equipment, which lead to poor sterilization and ethylene removal effects.

[0024] like Figure 1 and Figure 2 As shown, the sterilizer and ethylene removal machine with built-in circulating air duct structure includes a housing 1 and a movable plate 2 slidably connected to the rear side of the housing 1. The housing 1 serves as the main support structure of the entire device to provide a closed processing space. The movable plate 2 is used to control the opening and closing of the internal space of the housing 1 to facilitate the placement or removal of items to be processed. Two grooves 10 are opened on the rear wall of the housing 1. The two grooves 10 extend vertically along the height direction of the housing 1. The two sides of the movable plate 2 are respectively embedded in and slidably connected to the inner walls of the two grooves 10. The movable plate 2 can move up and down along the guide path of the grooves 10 under the action of external force. When the movable plate 2 slides to the bottom of the groove 10, the housing 1 is in a completely closed state and a sealed airflow circulation environment is created.

[0025] like Figure 3 and Figure 4 As shown, to construct the internal airflow circulation channels and functional zones, an upper filter 4 is fixedly connected to the upper middle part of the inner wall of the shell 1, and a lower filter 8 is fixedly connected to the lower middle part of the inner wall of the shell 1. The upper filter 4 and the lower filter 8 are distributed vertically and overlappingly along the vertical direction of the shell 1. The upper filter 4 is used to block large particles of impurities and allow airflow to pass through into the upper space. The lower filter 8 is used to hold the target to be processed, such as fruits or vegetables, and allow airflow to penetrate the target. A partition 5 is fixedly connected between the upper filter 4 and the lower filter 8. The partition 5 is vertically set inside the shell 1 and divides the space in the middle of the shell 1 into front and back sections. In the latter two areas, the airflow is forced to flow along a preset path without short-circuiting. Multiple airflow circulation fans 11 are fixedly connected to the lower middle part of the front side of the inner wall of the housing 1. The multiple airflow circulation fans 11 are arranged in a horizontal array on the front side of the inner wall of the housing 1. The airflow circulation fans 11 serve as a power source to drive the airflow inside the housing 1 to form a forced circulation. Multiple miniature ozone generators 9 are fixedly connected to the lower middle part of the left and right sides of the inner wall of the housing 1. The miniature ozone generators 9 are used to generate ozone gas to oxidize and sterilize the target to be treated. The miniature ozone generators 9 and the airflow circulation fans 11 are both located in the lower middle part of the inner cavity of the housing 1.

[0026] To solve the above-mentioned technical problems, the core of the technical solution of this embodiment is that the sterilization and ethylene removal machine with built-in circulating air duct structure also includes a multi-layer composite adsorption component and an airflow guiding structure. Furthermore, the composite adsorption component forms a specific fixed connection and spatial distribution relationship with the aforementioned partition 5 and shell 1. Please refer to Figure 3 and Figure 4 An activated carbon adsorption plate 6, a potassium permanganate adsorption plate 7, and another activated carbon adsorption plate 6 are fixedly connected sequentially from top to bottom on the front wall of the partition 5. The front end faces of the activated carbon adsorption plate 6 and the potassium permanganate adsorption plate 7 are both fixedly connected to the front side of the inner wall of the shell 1. The activated carbon adsorption plate 6 and the potassium permanganate adsorption plate 7 together form a three-stage purification barrier located between the upper filter screen 4 and the lower filter screen 8. The activated carbon adsorption plate 6 uses the porous characteristics of activated carbon material to physically adsorb ethylene and odor molecules in the airflow. The potassium permanganate adsorption plate 7 uses the strong oxidizing properties of potassium permanganate to chemically decompose ethylene gas in the airflow. This structure combining physical adsorption and chemical decomposition ensures the high efficiency and thoroughness of ethylene removal.

[0027] Meanwhile, in order to force the airflow to form an extended contact path inside the adsorption component, multiple airflow circulation holes 12 are opened in the middle area of ​​the potassium permanganate adsorption plate 7. Multiple airflow circulation holes 12 are also opened on the left and right edge areas of the two activated carbon adsorption plates 6 located above and below the potassium permanganate adsorption plate 7. The staggered distribution of the airflow circulation holes 12 in space forces the airflow to change its flow direction. The airflow first passes through the airflow circulation holes 12 on both sides of the activated carbon adsorption plate 6, then converges to the airflow circulation hole 12 in the middle of the potassium permanganate adsorption plate 7, and finally disperses again to the airflow circulation holes 12 on both sides of the lower activated carbon adsorption plate 6. This S-shaped bypass path significantly increases the contact area and reaction time between the airflow and the adsorption medium, thereby improving the purification efficiency of a single cycle.

[0028] In addition, in order to optimize the overall airflow field inside the housing 1 and reduce eddy current losses, two guide vanes 3 are fixedly connected to the top of the inner wall of the housing 1, and one guide vane 3 is fixedly connected to the bottom of the inner wall of the housing 1. The guide vanes 3 are precisely positioned and installed as airflow guiding components. The two guide vanes 3 at the top are located at the front and rear corners of the top of the inner cavity of the housing 1, respectively, and are used to smoothly guide the airflow rising to the top and turn back into the purification area between the upper filter screen 4 and the lower filter screen 8. The guide vane 3 at the bottom is located at the rear corner of the bottom of the inner cavity of the housing 1, and is used to smoothly guide the airflow after passing through the target to be treated upward and through the upper filter screen 4. The setting of the guide vanes 3 ensures that the airflow can form a smooth and comprehensive circulation loop within the closed housing 1.

[0029] As a preferred embodiment, to ensure the uniformity and coverage of airflow circulation, multiple airflow circulation fans 11 are arranged in a horizontal array in the lower-middle area of ​​the front side of the inner wall of the housing 1. The horizontally arrayed airflow circulation fans 11 can generate a wide and uniformly velocity driving airflow, avoiding dead airflow corners inside the housing 1, thereby ensuring the comprehensiveness of sterilization and ethylene removal operations.

[0030] As a preferred embodiment to improve the mixing efficiency of the sterilization medium, multiple micro ozone generators 9 are provided, and the multiple micro ozone generators 9 are respectively fixedly connected to the lower middle part of the left and right sides of the inner wall of the housing 1. The micro ozone generators 9 and the airflow circulation fan 11 are both located in the lower middle part of the inner cavity of the housing 1. This close proximity relationship allows the ozone generated by the micro ozone generators 9 to be quickly captured by the airflow circulation fan 11 and diffused into the entire internal space of the housing 1 with the circulating airflow.

[0031] As a preferred embodiment to reduce the resistance loss of vertical airflow, the upper filter screen 4 and the lower filter screen 8 are distributed vertically and overlappingly along the vertical direction of the housing 1. The coaxial vertical alignment of the upper filter screen 4 and the lower filter screen 8 ensures that the airflow remains streamlined as it flows from bottom to top through the target to be processed and enters the upper space, effectively reducing turbulence and energy loss of the airflow in non-functional areas.

[0032] As a preferred embodiment to ensure the smoothness and sealing of the opening and closing operation of the housing 1, two slide grooves 10 are provided and the two slide grooves 10 extend vertically along the rear side of the housing 1. The two slide grooves 10 are located at the left and right edges of the rear side of the housing 1, respectively. The two sides of the moving plate 2 are slidably embedded into the two slide grooves 10. The double slide groove 10 structure provides stable bilateral guide support for the moving plate 2 and prevents the moving plate 2 from getting stuck or tilting during the movement.

[0033] Working principle: Place the target to be processed on top of the lower filter screen 8, and move the moving plate 2 along the path of the slide 10 to the bottom of the housing 1, so that the housing 1 is in a completely closed state and a sealed processing space is created. Start the airflow circulation fan 11 and the mini ozone generator 9. The mini ozone generator 9 generates ozone gas. The airflow circulation fan 11 drives the airflow inside the housing 1 to form a circulating flow. The airflow carrying ozone passes through the target to be treated located on top of the lower filter screen 8 under the power of the airflow circulation fan 11. After the ozone-carrying airflow passes through the target to be treated, it also carries the ethylene gas produced by the target to be treated. Under the guidance of the flow guide 3 at the bottom of the inner wall of the housing 1, the airflow carries the ethylene gas upward and passes through the upper filter screen 4 to enter the upper cavity of the housing 1. The airflow entering the upper cavity of the housing 1 is guided by the two guides 3 at the top of the inner wall of the housing 1 and enters the area between the upper filter screen 4 and the lower filter screen 8. The airflow flows through the activated carbon adsorption plate 6, the potassium permanganate adsorption plate 7, and another activated carbon adsorption plate 6 distributed from top to bottom on the front side of the partition 5 in sequence. The airflow passes through the airflow circulation hole 12 in the middle of the potassium permanganate adsorption plate 7 and the airflow circulation holes 12 on the left and right sides of the activated carbon adsorption plate 6. As the airflow passes through the activated carbon adsorption plate 6 and the potassium permanganate adsorption plate 7, the activated carbon adsorption plate 6 and the potassium permanganate adsorption plate 7 adsorb and purify the ethylene gas in the airflow and remove the ethylene gas. The airflow that has completed the purification of ethylene gas re-enters the lower cavity of the housing 1. The airflow is driven again by the airflow circulation fan 11 and enters the next round of airflow circulation. The system continues to sterilize and adsorb and remove ethylene gas from the target to be treated on the top of the lower filter screen 8.

Claims

1. A sterilizer and ethylene removal machine with a built-in circulating air duct structure, including a housing (1), a sliding groove (10) is opened on the rear side of the housing (1), and a movable plate (2) is slidably connected in the sliding groove (10). Its features are, The top and bottom of the inner wall of the housing (1) are fixedly connected to the flow guide (3); The upper filter screen (4) is fixedly connected to the upper part of the inner wall of the housing (1), the lower filter screen (8) is fixedly connected to the lower part of the inner wall of the housing (1), and a partition plate (5) is fixedly connected between the upper filter screen (4) and the lower filter screen (8). The front side of the partition (5) is fixedly connected from top to bottom to an activated carbon adsorption plate (6), a potassium permanganate adsorption plate (7) and another activated carbon adsorption plate (6), and airflow circulation holes (12) are opened on the activated carbon adsorption plate (6) and the potassium permanganate adsorption plate (7). The airflow circulation fan (11) is fixedly connected to the lower middle part of the front side of the inner wall of the housing (1), and the micro ozone generator (9) is fixedly connected to the lower middle part of the left and right sides of the inner wall of the housing (1).

2. The sterilizer and ethylene removal machine with a built-in circulating air duct structure according to claim 1, characterized in that, Two slides (10) are provided, and the two slides (10) extend vertically along the rear side of the housing (1).

3. The sterilizer and ethylene removal machine with a built-in circulating air duct structure according to claim 1, characterized in that, Two flow guides (3) are provided at the top of the inner wall of the housing (1), and one flow guide (3) is provided at the bottom of the inner wall of the housing (1).

4. The sterilizer and ethylene removal machine with a built-in circulating air duct structure according to claim 1, characterized in that, The airflow circulation hole (12) on the potassium permanganate adsorption plate (7) is located in the middle part of the potassium permanganate adsorption plate (7).

5. The sterilizer and ethylene removal machine with a built-in circulating air duct structure according to claim 1, characterized in that, The airflow circulation holes (12) on the activated carbon adsorption plate (6) are located on the left and right sides of the activated carbon adsorption plate (6).

6. The sterilizer and ethylene removal machine with a built-in circulating air duct structure according to claim 1, characterized in that, The front side of the activated carbon adsorption plate (6) and the front side of the potassium permanganate adsorption plate (7) are both fixedly connected to the front side of the inner wall of the shell (1).

7. The sterilizer and ethylene removal machine with a built-in circulating air duct structure according to claim 1, characterized in that, Multiple airflow circulation fans (11) are provided, and the multiple airflow circulation fans (11) are arranged in an array on the front side of the inner wall of the housing (1).

8. The sterilizer and ethylene removal machine with a built-in circulating air duct structure according to claim 1, characterized in that, Multiple micro ozone generators (9) are provided, and multiple micro ozone generators (9) and airflow circulation fan (11) are located in the lower middle part of the inner cavity of the housing (1).

9. The sterilizer and ethylene removal machine with a built-in circulating air duct structure according to claim 1, characterized in that, The upper filter screen (4) and the lower filter screen (8) are distributed vertically at intervals along the vertical direction of the housing (1).

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