A circulating air duct structure of a food-grade ozone sterilization cabinet

Abstract

The utility model provides a kind of circulating air duct structure of food-grade ozone sterilization cabinet, comprising: air duct main body, cabinet and cabinet door, the air duct main body outside is equipped with a group of for the ozone sterilization cabinet is outside sealed protection outer cover, the air duct main body is installed in outer cover inside, and its inside is sealed structure, compared with prior art, the utility model has the beneficial effects as follows: first, the food to be sterilized is placed in cabinet and the cabinet door is closed, the equipment is started after ensuring the sealing, the external air is inhaled by main air pipe through-flow hole, is distributed to two sides guide pipe one and two by shunt tee, is guided to the space of cabinet left and right sides respectively, circulating air pipe one and two form bidirectional airflow circulation by inner shunt pipe group one and two, rectangular structure design cooperates inner spiral guide groove to enhance gas turbulent effect, so that ozone evenly covers food surface, during sterilization process, shunt tee continuously collects circulating gas, sealed joint maintains air duct airtightness, ensure that ozone concentration is stable.

Description

Technical Field

[0001] This utility model belongs to the technical field of ozone sterilizers and relates to a circulating air duct structure for a food-grade ozone sterilizer. Background Technology

[0002] Existing ozone sterilizers suffer from three main drawbacks in internal air circulation: uneven airflow distribution, low ozone utilization efficiency, and insufficient circulation power. Uneven airflow distribution manifests as insufficient ozone concentration in localized areas, creating sterilization dead zones. This stems from the unidirectional, single-pipe delivery structure used in most devices, where ozone exits only from a single vertical position within the cabinet. Obstructed by items, it struggles to diffuse to corners, and the simple circulation duct design fails to consider airflow guidance. Conventional solutions include adding deflectors to guide airflow, regularly cleaning impurities inside the cabinet, and replacing the fan with a high-powered one. However, deflectors, due to their fixed structure, cannot adapt to different loading capacities, and new dead zones can still be created when items are rearranged. Therefore, there is an urgent need for a new circulation duct structure for food-grade ozone sterilizers to address these issues. Utility Model Content

[0003] To address the shortcomings of existing technologies, the purpose of this invention is to provide a circulating air duct structure for a food-grade ozone sterilizer, thereby resolving the problems mentioned in the background section.

[0004] This utility model is achieved through the following technical solution: a circulating air duct structure for a food-grade ozone sterilizer, comprising: an air duct body and a cabinet door, wherein an outer cover is provided on the outside of the air duct body for external sealing protection of the ozone sterilizer, the air duct body is installed inside the outer cover, and its interior is a sealed structure.

[0005] The main body of the air duct includes a main air duct and an inner spiral guide groove. A set of flow holes for introducing external air is provided at the lower end of the middle position of the main air duct. A set of diversion tee for diverting and guiding circulating air is provided on the front side of the main air duct. A set of convergence tee for collecting and guiding circulating air is provided on the rear side of the main air duct.

[0006] In a preferred embodiment, the manifold tee and the branch tee are of the same specifications and are arranged symmetrically. Both the manifold tee and the branch tee are sealed to the main air duct. Each of the three sets of connectors of the manifold tee and the branch tee is provided with a set of sealing joints on the outside to maintain the sealing effect of the connection.

[0007] As a preferred embodiment, a set of side guide pipes is provided on the outer side of the left end of the diversion tee and the convergence tee for guiding the air flow on the left side inside the ozone sterilization cabinet, and a set of side guide pipes is provided on the outer side of the right end of the diversion tee and the convergence tee for guiding the air flow on the right side inside the ozone sterilization cabinet. In actual use, the cabinet door is first closed to ensure airtightness. After the equipment is started, the ozone generator produces sterilization gas. The main air duct draws in external air through the flow hole and distributes it evenly to the two side guide pipes through the diversion tee. Side guide pipes one and two guide the ozone gas to the left and right sides of the cabinet respectively. The circulating air ducts one and two form a bidirectional airflow circulation through the inner airflow duct group and the inner diversion duct group. The inner spiral guide groove enhances the gas turbulence effect, so that the ozone can fully contact the surface of the items.

[0008] As a preferred embodiment, a circulating air duct 1 for circulating air is provided on the left side of the two sets of side guide pipes 1, and a circulating air duct 2 for circulating air is provided on the right side of the two sets of side guide pipes 2.

[0009] In a preferred embodiment, both the first circulating air duct and the second circulating air duct are rectangular structures, and the first circulating air duct is provided with several sets of internal diversion pipe groups for uniformly circulating the air on the left side of the ozone sterilization cabinet.

[0010] In a preferred embodiment, the second circulating air duct is provided with several sets of internal diversion pipes for uniformly circulating the air on the right side of the ozone sterilization cabinet. The several sets of internal diversion pipes are interconnected with the interior of the first circulating air duct. The first circulating air duct is provided with an internal spiral guide groove for accelerating airflow efficiency.

[0011] In a preferred embodiment, several sets of the inner diversion pipe groups two are internally interconnected with the circulating air duct two. A set of cabinets for ozone sterilization of food is provided on the outside of the main body of the air duct. A set of cabinet doors for placing food and performing ozone sterilization is provided on the front side of the cabinet. In actual use, the food to be sterilized is first placed in the cabinet and the cabinet door is closed to ensure airtightness before starting the equipment. The ozone generator produces sterilization gas, which is drawn into the outside air through the main air duct through the flow hole and distributed to the two side guide pipes one and two through the diversion tee, respectively guiding the air to the left and right sides of the cabinet. The circulating air ducts one and two form a bidirectional airflow circulation through the inner diversion pipe groups one and two. The rectangular structure design, combined with the inner spiral guide groove, enhances the gas turbulence effect, so that ozone evenly covers the surface of the food. During the sterilization process, the converging tee continuously collects the circulating gas, and the sealing joint maintains the airtightness of the air duct to ensure a stable ozone concentration.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are as follows: In actual use, first, close the cabinet door to ensure airtightness. After starting the equipment, the ozone generator works to produce sterilization gas. The main air duct draws in external air through the flow hole and distributes it evenly to the two side guide pipes through the diversion tee. Side guide pipes one and two guide the ozone gas to the left and right sides of the cabinet respectively. Circulation air ducts one and two form a bidirectional airflow circulation through the inner airflow pipe group and the inner diversion pipe group. With the help of the inner spiral guide groove, the gas turbulence effect is enhanced, so that the ozone can fully contact the surface of the item.

[0013] In actual use, the food to be sterilized is first placed inside the cabinet and the cabinet door is closed to ensure airtightness before starting the equipment. The ozone generator produces sterilizing gas, which is drawn in from the outside air through the main air duct's flow hole. The gas is then distributed to the two side guide pipes one and two via the split tee, guiding the air to the left and right sides of the cabinet respectively. The circulating air ducts one and two form a bidirectional airflow circulation through the inner split pipe groups one and two. The rectangular structure design, combined with the inner spiral guide groove, enhances the gas turbulence effect, allowing ozone to evenly cover the food surface. During the sterilization process, the converging tee continuously collects the circulating gas, and the sealing joint maintains the airtightness of the air duct, ensuring a stable ozone concentration. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a right-angled front view schematic diagram of the circulating air duct structure of a food-grade ozone sterilizer according to this utility model.

[0016] Figure 2 This is a bottom view of the main body of the circulating air duct structure in the food-grade ozone sterilizer of this utility model.

[0017] Figure 3 This is a right oblique view of the tee structure in the circulating air duct structure of a food-grade ozone sterilizer according to the present invention.

[0018] Figure 4 This is a right oblique view of the internal spiral guide groove of the circulating air duct in the circulating air duct structure of a food-grade ozone sterilizer according to the present invention.

[0019] In the diagram: 100 - main air duct body, 110 - cabinet body, 120 - cabinet door;

[0020] 10a-Main air duct, 10b-Side guide pipe I, 10c-Side guide pipe II, 10d-Circulating air duct I, 10e-Inner branch pipe group I, 10f-Circulating air duct II, 10g-Inner branch pipe group II, 10h-Branch tee, 10i-Combination tee, 10j-Sealing joint, 10k-Inner spiral guide groove. 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 protection scope of the present utility model.

[0022] Please see Figures 1-4 As the first embodiment of this utility model: a circulating air duct structure for a food-grade ozone sterilizer, including: an air duct body 100 and a cabinet door 120, the outer side of the air duct body 100 is provided with an outer cover for external sealing protection of the ozone sterilizer, the air duct body 100 is installed inside the outer cover, and its interior is a sealed structure.

[0023] The main body of the air duct 100 includes a main air duct 10a and an inner spiral guide groove 10k. The lower end of the middle position of the main air duct 10a is provided with a set of flow holes for introducing external air. The front side of the main air duct 10a is provided with a set of diversion tee 10h for diverting and guiding the circulating air. The rear side of the main air duct 10a is provided with a set of convergence tee 10i for collecting and guiding the circulating air.

[0024] The 10i and 10h ducts are identical in specifications and are arranged symmetrically. Both the 10i and 10h ducts are sealed to the main duct 10a. Each of the three sets of connectors of the 10i and 10h ducts has a sealing joint 10j on the outside to maintain the sealing effect of the connection.

[0025] A set of side guide pipes 10b is provided on the outer left side of the diversion tee 10h and the convergence tee 10i to guide the air flow on the left side inside the ozone sterilization cabinet. A set of side guide pipes 10c is provided on the outer right side of the diversion tee 10h and the convergence tee 10i to guide the air flow on the right side inside the ozone sterilization cabinet. In actual use, the cabinet body 110 and the cabinet door 120 are closed first to ensure airtightness. After the equipment is started, the ozone generator works to produce sterilization gas. The main air duct 10a draws in external air through the flow hole and distributes it evenly to the two side guide pipes through the diversion tee 10h. The side guide pipes 10b and 10c guide the ozone gas to the left and right sides of the cabinet body 110 respectively. The circulating air ducts 10d and 10c form a bidirectional airflow circulation through the inner airflow duct group and the inner diversion duct group. The inner spiral guide groove 10k enhances the gas turbulence effect, so that the ozone can fully contact the surface of the items.

[0026] Please see Figures 1-4 As a second embodiment of this utility model: based on the description in the above embodiments, further, a set of circulating air duct 10d for circulating air is provided on the left side of the two sets of side guide pipes 10b, and a set of circulating air duct 10f for circulating air is provided on the right side of the two sets of side guide pipes 10c.

[0027] Both circulating air duct 10d and circulating air duct 2 10f are rectangular structures, and circulating air duct 10d has several sets of internal diversion pipe groups 10e for uniformly circulating the air on the left side of the ozone sterilization cabinet.

[0028] The circulating air duct 2 10f is equipped with several sets of internal diversion pipe groups 2 10g for uniformly circulating the air on the right side of the ozone sterilization cabinet. Several sets of internal diversion pipe groups 10e are interconnected with the circulating air duct 10d. The circulating air duct 10d is equipped with an internal spiral guide groove 10k to accelerate the air flow efficiency.

[0029] Several sets of internal diversion pipe groups 10g are internally connected to the circulating air duct group 10f. A set of cabinets 110 for ozone sterilization of food is provided on the outside of the air duct body 100. A set of cabinet doors for placing food and performing ozone sterilization is provided on the front side of the cabinet 110. In actual use, the food to be sterilized is first placed in the cabinet 110 and the cabinet door is closed to ensure airtightness. Then the equipment is started. The ozone generator produces sterilization gas, which is drawn into the outside air through the flow hole of the main air duct 10a. It is then distributed to the two side guide pipes 10b and 2 through the diversion tee 10h, and directed to the left and right sides of the cabinet 110 respectively. The circulating air ducts 10d and 2 form a bidirectional airflow circulation through the internal diversion pipe groups 10e and 2. The rectangular structure design, combined with the internal spiral guide groove 10k, enhances the gas turbulence effect, so that ozone evenly covers the surface of the food. During the sterilization process, the converging tee 10i continuously collects the circulating gas, and the sealing joint 10j maintains the airtightness of the air duct to ensure a stable ozone concentration.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A circulating air duct structure for a food-grade ozone sterilizer, comprising: The air duct body (100) and cabinet door (120) are characterized in that: the air duct body (100) is provided with an outer cover for sealing and protecting the ozone sterilization cabinet from the outside, the air duct body (100) is installed inside the outer cover, and its interior is a sealed structure; The main body of the air duct (100) includes a main air duct (10a) and an inner spiral guide groove (10k). The lower end of the middle position of the main air duct (10a) is provided with a set of flow holes for introducing external air. The front side of the main air duct (10a) is provided with a set of diversion tee (10h) for diverting and guiding circulating air. The rear side of the main air duct (10a) is provided with a set of convergence tee (10i) for gathering and guiding circulating air.

2. The circulating air duct structure of a food-grade ozone sterilizer according to claim 1, characterized in that: The manifold tee (10i) and the branch tee (10h) are of the same specifications and are arranged symmetrically. Both the manifold tee (10i) and the branch tee (10h) are sealed to the main air duct (10a). Each of the three sets of connectors of the manifold tee (10i) and the branch tee (10h) is provided with a sealing joint (10j) on the outside to maintain the sealing effect of the connection.

3. The circulating air duct structure of a food-grade ozone sterilizer according to claim 2, characterized in that: A set of side guide pipes (10b) for transmitting and guiding the air on the left side inside the ozone sterilizer is provided on the outer side of the left end of the diversion tee (10h) and the confluence tee (10i), and a set of side guide pipes (10c) for transmitting and guiding the air on the right side inside the ozone sterilizer is provided on the outer side of the right end of the diversion tee (10h) and the confluence tee (10i).

4. The circulating air duct structure of a food-grade ozone sterilizer according to claim 3, characterized in that: On the left side of the two sets of side guide pipes (10b), there is a set of circulating air ducts (10d) for circulating air, and on the right side of the two sets of side guide pipes (10c), there is a set of circulating air ducts (10f) for circulating air.

5. The circulating air duct structure of a food-grade ozone sterilizer according to claim 4, characterized in that: Both circulating air duct one (10d) and circulating air duct two (10f) are rectangular structures, and circulating air duct one (10d) is provided with several sets of internal diversion pipe groups one (10e) for uniformly circulating the air on the left side of the ozone sterilization cabinet.

6. The circulating air duct structure of a food-grade ozone sterilizer according to claim 5, characterized in that: The second circulating air duct (10f) is equipped with several sets of inner diversion pipe groups (10g) for uniformly circulating the air on the right side of the ozone sterilization cabinet. Several sets of inner diversion pipe groups (10e) are interconnected with the first circulating air duct (10d). The first circulating air duct (10d) is equipped with an inner spiral guide groove (10k) for accelerating the airflow efficiency.

7. The circulating air duct structure of a food-grade ozone sterilizer according to claim 6, characterized in that: Several sets of internal diversion pipe groups 2 (10g) are internally connected to circulating air duct group 2 (10f). A set of cabinets (110) for ozone sterilization of food is provided on the outside of the air duct body (100). A set of cabinet doors (120) for placing food and performing ozone sterilization is provided on the front side of the cabinet (110).

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