Air equal-flow dry heat sterilizer

Abstract

The invention relates to the field of sterilizers, and particularly discloses an air equal-flow dry heat sterilizer which comprises an equipment shell, an inner circulating fan, an air supply cavity channel, a sterilization working chamber, a heat preservation chamber, an air return cavity channel, a heating element, an equal-flow air deflector and an equal-flow guide chamber, the heat preservation chamber is tightly attached and fixed to the interior of the equipment shell, the sterilization working chamber is fixedly installed on the inner wall of the heat preservation chamber, and the air supply cavity channel and the air return cavity channel are located on the two sides of the sterilization working chamber respectively; through the design of the equal-flow air deflector and the equal-flow guide chamber, airflow is more uniformly distributed in the sterilizer, so that the problem that the temperature in a sterilization chamber in a traditional dry and hot air sterilizer is not uniform is effectively solved, and the uniformity of the sterilization effect is ensured; due to the fact that the air flow is evenly distributed, sterilized objects can be evenly heated, the sterilization temperature uniformity of the objects is remarkably improved, the sterilization consistency effect is greatly improved, and the sterilization quality is guaranteed.

Description

Technical Field

[0001] The invention belongs to the field of sterilizers, in particular to an air isotropic dry heat sterilizer. Background Art

[0002] Dry heat sterilization is a commonly used sterilization method. Its basic principle is to use high-temperature, dry air to kill or remove microorganisms from items. A dry air sterilizer heats the air using electricity (or other types of heat sources). This heated, dry air is then circulated within the sterilization chamber by a fan, using the high temperature to kill microorganisms or remove the heat source from the items inside. The mechanisms of dry air sterilization primarily include protein denaturation, high-temperature oxidation, high-temperature carbonization, and electrolyte concentration. These mechanisms work together to ensure effective sterilization.

[0003] Traditional dry heat sterilizers typically consist of a housing, internal circulation fan, air supply duct, sterilization chamber, holding chamber, base, return air duct, and heating elements. During operation, air circulates within the sterilizer under the influence of the fan. After being heated by the heating elements, the hot air flows through the sterilization chamber, sterilizing the items. However, traditional dry heat sterilizers have some significant drawbacks.

[0004] Among them, the most prominent problem is the uneven distribution of airflow. In traditional dry hot air sterilizers, due to design limitations, the distribution of airflow in the sterilizer working room is often uneven (such as Figure 6 As shown in Figure 2.2, the upper part of the sterilizer receives much more hot air flow than the lower part, resulting in large temperature deviations. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides an air equal flow dry heat sterilizer to solve the problems of uneven temperature in the sterilization chamber and poor consistency of sterilization effect in traditional dry heat air sterilizers in the prior art.

[0006] An air equal flow dry heat sterilizer comprises an equipment housing, an internal circulation fan, an air supply cavity, a sterilization workroom, a holding chamber, an air return cavity, a heating element, an equal flow air guide plate and an equal flow guide chamber;

[0007] The insulation chamber is tightly fixed to the inside of the equipment housing, the sterilization chamber is fixedly installed on the inner wall of the insulation chamber, and the air supply cavity and the return air cavity are respectively located on both sides of the sterilization chamber;

[0008] The internal circulation fan is installed inside the equipment housing, the air outlet of the internal circulation fan and the air supply cavity are connected to each other, and the air inlet of the internal circulation fan and the return air cavity are connected to each other;

[0009] The heating element is fixedly mounted on the inner wall of the insulation chamber and heats the return air duct;

[0010] The equal flow air guide plate is fixedly installed on the outside of the sterilization workroom to form an equal flow guide chamber. The equal flow air guide plate is used to achieve uniform airflow distribution, so that the temperature distribution in the sterilization workroom is uniform and stable;

[0011] The internal circulation fan pushes the hot air through the air supply cavity, the sterilization studio, the return air cavity and then returns to the internal circulation fan.

[0012] Preferably, the equal-flow air guide plate is longitudinally arranged in the air supply cavity to divide the cavity into equal-flow guide chambers.

[0013] Preferably, the equal-flow air guide plate is longitudinally arranged in the return air cavity to divide the cavity into equal-flow guide chambers.

[0014] Preferably, a device base is also fixedly mounted on the bottom of the device housing.

[0015] Preferably, a side filter is also included to filter the air entering the sterilizer to ensure the cleanliness of the sterilization environment;

[0016] The side filter is fixedly installed on the outside of the sterilization working chamber.

[0017] Preferably, it also includes an exhaust baffle, an exhaust device and an exhaust filter;

[0018] The exhaust baffle is fixedly installed on the inner wall of the insulation chamber, and the exhaust device is fixedly installed on the outer wall of the insulation chamber, which is used to adjust the exhaust volume and discharge the hot air in the return air cavity through the exhaust filter and then through the exhaust device.

[0019] Preferably, it also includes an air supply device and an air supply filter;

[0020] The air supply device is fixedly installed on the outer wall of the insulation chamber and is used to supply fresh air into the return air cavity to maintain the internal air balance. The air supply filter is used to filter the incoming air.

[0021] Preferably, it also includes an entrance cabinet door and an exit cabinet door;

[0022] The entrance cabinet door and the exit cabinet door are fixedly installed on the front and rear sides of the equipment housing respectively through hinges.

[0023] Preferably, it also includes an instrument control panel;

[0024] The instrument control panel is fixedly mounted on the entrance cabinet door and is used to monitor and control the operating parameters of the sterilizer, including temperature and time.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] The design of the equal-flow air guide plate and equal-flow guide chamber makes the airflow inside the sterilizer more evenly distributed, effectively solving the problem of uneven temperature inside the sterilization chamber in traditional dry hot air sterilizers and ensuring the uniformity of the sterilization effect. Due to the uniform airflow distribution, the sterilized objects can be evenly heated, and the uniformity of the sterilization temperature of the objects is significantly improved, thereby greatly improving the consistency of the sterilization effect and ensuring the sterilization quality.

[0027] Through the coordinated work of the exhaust device and the air supply device, the present invention can adjust the exhaust volume, and discharge the hot air in the return air cavity after filtering through the exhaust filter, while at the same time replenishing the fresh air into the return air cavity after filtering through the air supply filter, thereby maintaining the air balance inside the sterilizer and ensuring the stability and reliability of the sterilization process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a front view of the present invention;

[0029] Figure 2 is a side view of the present invention;

[0030] Figure 3 A top view of the present invention;

[0031] Figure 4 This is a cross-sectional view of the air guide plate located in the air supply cavity of the process of the present invention;

[0032] Figure 5 This is a cross-sectional view of the air guide plate located in the return air cavity of the process of the present invention;

[0033] Figure 6 This is a cross-sectional view of a common sterilizer.

[0034] In the figure: 1. Equipment casing; 2. Internal circulation fan; 3. Air supply cavity; 4. Sterilization chamber; 5. Holding chamber; 6. Return air cavity; 7. Heating element; 8. Equal flow air guide plate; 9. Equal flow guide chamber; 10. Equipment base; 11. Side filter; 12. Exhaust baffle; 13. Exhaust device; 14. Air supply device; 15. Inlet cabinet door; 16. Exit cabinet door; 17. Instrument control panel. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] like Figures 1 to 5 As shown:

[0037] Embodiment 1: The present invention provides an air equal flow dry heat sterilizer, comprising an equipment housing 1, an internal circulation fan 2, an air supply cavity 3, a sterilization workroom 4, a holding chamber 5, a return air cavity 6, a heating element 7, an equal flow air guide plate 8 and an equal flow guide chamber 9;

[0038] The insulation chamber 5 is fixed closely to the inside of the equipment housing 1, the sterilization chamber 4 is fixedly installed on the inner wall of the insulation chamber 5, and the air supply cavity 3 and the return air cavity 6 are respectively located on both sides of the sterilization chamber 4;

[0039] The internal circulation fan 2 is installed inside the equipment housing 1, the air outlet of the internal circulation fan 2 and the air supply cavity 3 are connected to each other, and the air inlet of the internal circulation fan 2 and the return air cavity 6 are connected to each other;

[0040] The heating element 7 is fixedly mounted on the inner wall of the insulation chamber 5 and heats the return air cavity 6;

[0041] The equal flow air guide plate 8 is fixedly installed on the outside of the sterilization workroom 4 to form an equal flow guide chamber 9. The equal flow air guide plate 8 is used to achieve uniform airflow distribution, so that the temperature distribution in the sterilization workroom is uniform and stable;

[0042] The hot air is pushed by the internal circulation fan 2 to flow through the air supply cavity 3, the sterilization studio 4, the return air cavity 6 and then returns to the internal circulation fan 2.

[0043] As can be seen from the above, when working, the internal circulation fan 2 starts to push the air to circulate inside the sterilizer;

[0044] The hot air flows out from the air outlet of the internal circulation fan 2, enters the air supply cavity 3, and is then guided to the sterilization chamber 4 to sterilize the items to be sterilized placed therein;

[0045] Afterwards, the hot air enters the return air cavity 6. During this process, the heating element 7 continues to heat the air to maintain the temperature of the hot air;

[0046] The heated air is sucked into the internal circulation fan 2 again, thus forming a continuous and stable air flow cycle.

[0047] During this circulation process, the equal-flow air guide plate 8 is longitudinally fixedly installed on the outside of the sterilization studio 4, forming an equal-flow guide chamber 9, which achieves the effect of changing the direction of the airflow, so that the flow distance of the airflow is equal when flowing through the supply air duct 3 and the return air duct 6, and thus makes the hot air evenly distributed inside the sterilization studio 4, ensuring the uniformity and stability of the temperature distribution in the sterilization studio, thereby achieving a good sterilization effect.

[0048] In addition, the insulation chamber 5 is tightly fixed to the inside of the equipment housing 1, providing a stable temperature environment for the sterilization studio 4, which helps to maintain the stability and efficiency of the sterilization process; the equipment housing 1 serves as the external protective structure of the sterilizer, which not only ensures the stability and safety of the sterilization process, but also plays a role in dust and pollution prevention.

[0049] Example 2: This example is basically the same as Example 1, except that Figure 4 As shown, the equal-flow air guide plate 8 is longitudinally arranged in the air supply cavity 3 to divide the cavity into equal-flow guide chambers 9.

[0050] As can be seen from the above, the sterilization room 4 is divided into three areas: the upper sterilization room A, the middle sterilization room B and the lower sterilization room C;

[0051] The hot air is guided by the equal-flow air guide plate 8 and enters the upper part A of the sterilization chamber, the middle part B of the sterilization chamber and the lower part C of the sterilization chamber respectively;

[0052] The hot air entering the upper area A of the sterilization chamber from the right side will be discharged from the left side and return to the position of the internal circulation fan 2 along the return air cavity 6 after completing the sterilization;

[0053] The hot air entering the upper area B of the sterilization chamber from the right side will be discharged from the left side and return to the position of the internal circulation fan 2 along the return air cavity 6 after completing the sterilization;

[0054] The hot air entering the upper C area of ​​the sterilization chamber from the right side will be discharged from the left side and return to the position of the internal circulation fan 2 along the return air cavity 6 after completing the sterilization;

[0055] like Figure 4 As shown in the figure, the three areas of the sterilization chamber A, the sterilization chamber B and the sterilization chamber C can all have good air circulation effects, avoiding the following Figure 6 As shown in the figure, when the conventional non-equal flow air guide plate 8 is set, the airflow has uneven circulation effects in the three areas of the upper part A of the sterilization chamber, the middle part B of the sterilization chamber and the lower part C of the sterilization chamber.

[0056] Example 3: This example is basically the same as Example 1, except that Figure 5 As shown, the equal-flow air guide plate 8 is longitudinally arranged in the return air cavity 6 to divide the cavity into equal-flow guide chambers 9.

[0057] As can be seen from the above, the sterilization room 4 is divided into three areas: the upper sterilization room A, the middle sterilization room B and the lower sterilization room C;

[0058] The hot air enters the upper part A of the sterilization chamber, the middle part B of the sterilization chamber, and the lower part C of the sterilization chamber respectively;

[0059] After the hot air enters the upper area A of the sterilization chamber from the right side, it will be discharged from the left side and guided by the equal flow air guide plate 8, and then return to the position of the internal circulation fan 2 along the return air cavity 6;

[0060] After the hot air enters the upper B area of ​​the sterilization chamber from the right side, it will be discharged from the left side and guided by the equal flow air guide plate 8, and then return to the position of the internal circulation fan 2 along the return air cavity 6;

[0061] After the hot air enters the upper C area of ​​the sterilization chamber from the right side, it will be discharged from the left side and guided by the equal flow air guide plate 8, and then return to the position of the internal circulation fan 2 along the return air cavity 6;

[0062] like Figure 5 As shown in the figure, the three areas of the sterilization chamber A, the sterilization chamber B and the sterilization chamber C can all have good air circulation effects, avoiding the following Figure 6 As shown in the figure, when the conventional non-equal flow air guide plate 8 is set, the airflow has uneven circulation effects in the three areas of the upper part A of the sterilization chamber, the middle part B of the sterilization chamber and the lower part C of the sterilization chamber.

[0063] Embodiment 4: This embodiment is basically the same as the embodiment 1, except that a device base 10 is fixedly mounted on the bottom of the device housing 1 .

[0064] Specifically, it also includes a side filter 11 for filtering the air entering the sterilizer to ensure the cleanliness of the sterilization environment;

[0065] The side filter 11 is fixedly installed on the outside of the sterilization working chamber 4 .

[0066] Specifically, it also includes an exhaust baffle 12, an exhaust device 13 and an exhaust filter;

[0067] The exhaust baffle 12 is fixedly installed on the inner wall of the insulation chamber 5, and the exhaust device 13 is fixedly installed on the outer wall of the insulation chamber 5, which is used to adjust the exhaust volume and discharge the hot air in the return air cavity 6 through the exhaust filter and then through the exhaust device 13.

[0068] Specifically, it also includes an air supply device 14 and an air supply filter;

[0069] The air supply device 14 is fixedly installed on the outer wall of the insulation chamber 5 and is used to supply fresh air into the return air cavity 6 to maintain the internal air balance. The air supply filter is used to filter the incoming air.

[0070] Specifically, it also includes an entrance cabinet door 15 and an exit cabinet door 16;

[0071] The entrance cabinet door 15 and the exit cabinet door 16 are fixedly mounted on the front and rear sides of the equipment housing 1 respectively through hinges.

[0072] Specifically, it also includes an instrument control panel 17;

[0073] The instrument control panel 17 is fixedly mounted on the entrance cabinet door 15 and is used to monitor and control the operating parameters of the sterilizer, including temperature and time.

[0074] As can be seen from the above, when the sterilizer is in operation, the internal circulation fan 2 is activated to push the air into circulation inside the sterilizer. The hot air flows out from the air outlet of the internal circulation fan 2, enters the air supply cavity 3, and is then guided to the sterilization chamber 4 to sterilize the items to be sterilized placed therein.

[0075] Afterwards, the hot air enters the return air cavity 6. During this process, the heating element 7 continuously heats the air to maintain the temperature of the hot air. The heated air is then sucked into the internal circulation fan 2 again, thus forming a continuous and stable airflow cycle.

[0076] The equipment base 10 provides stable support for the sterilizer;

[0077] During this cycle, the equal-flow air guide plate 8 and the equal-flow guide chamber 9 change the direction of the airflow to make the airflow distance equal, ensuring that the hot air is evenly distributed inside the sterilization studio 4;

[0078] The side filter 11 filters the air entering the sterilizer to ensure the cleanliness of the sterilization environment.

[0079] The exhaust baffle 12 and the exhaust device 13 work together to adjust the exhaust volume and filter the hot air in the return air cavity 6 through the exhaust filter before being discharged;

[0080] At the same time, the air supply device 14 filters the fresh air through the air supply filter and then supplies it into the return air cavity 6 to maintain the air balance inside the sterilizer.

[0081] The entrance door 15 and the exit door 16 are respectively fixedly mounted on the front and rear sides of the device housing 1 by hinges to facilitate the insertion and removal of items;

[0082] The instrument control panel 17 is fixedly mounted on the entrance cabinet door 15 and is used to monitor and control the operating parameters of the sterilizer in real time, including temperature and time, to ensure accurate control of the sterilization process.

[0083] All standard parts used in the present invention can be purchased commercially, and special-shaped parts can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art. In addition, the circuit connections adopt conventional connection methods in the prior art and will not be described in detail here. Any matters not described in detail in this specification belong to the prior art known to professionals in this field.

[0084] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. "Multiple" means two or more, unless otherwise specifically defined.

[0085] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0086] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0087] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0088] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0089] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An air isotropic dry heat sterilizer, characterized in that: It comprises an equipment housing (1), an internal circulation fan (2), an air supply cavity (3), a sterilization workroom (4), an insulation chamber (5), a return air cavity (6), a heating element (7), an equal flow air guide plate (8) and an equal flow guide chamber (9); The insulation chamber (5) is fixed closely to the inside of the equipment housing (1), the sterilization chamber (4) is fixedly installed on the inner wall of the insulation chamber (5), and the air supply cavity (3) and the return air cavity (6) are respectively located on both sides of the sterilization chamber (4); The internal circulation fan (2) is installed inside the equipment housing (1), the air outlet of the internal circulation fan (2) and the air supply cavity (3) are connected to each other, and the air inlet of the internal circulation fan (2) and the return air cavity (6) are connected to each other; The heating element (7) is fixedly mounted on the inner wall of the insulation chamber (5) and heats the return air cavity (6); The equal flow air guide plate (8) is fixedly installed on the outside of the sterilization workroom (4) to form an equal flow guide chamber (9). The equal flow air guide plate (8) is used to achieve uniform airflow distribution, so that the temperature distribution in the sterilization workroom is uniform and stable; The hot air is pushed by the internal circulation fan (2) to flow through the air supply cavity (3), the sterilization workroom (4), the return air cavity (6) and then returns to the internal circulation fan (2).

2. The air isotropic dry heat sterilizer according to claim 1, characterized in that: The equal-flow air guide plate (8) is longitudinally arranged in the air supply cavity (3) to divide the cavity into equal-flow guide chambers (9).

3. The air isotropic dry heat sterilizer according to claim 1, characterized in that: The equal-flow air guide plate (8) is longitudinally arranged in the return air cavity (6) to divide the cavity into equal-flow guide chambers (9).

4. The air isotropic dry heat sterilizer according to claim 1, characterized in that: A device base (10) is also fixedly mounted on the bottom of the device housing (1).

5. The air isotropic dry heat sterilizer according to claim 1, characterized in that: It also includes a side filter (11) for filtering the air entering the sterilizer to ensure the cleanliness of the sterilization environment; The side filter (11) is fixedly installed on the outside of the sterilization studio (4).

6. The air isotropic dry heat sterilizer according to claim 1, characterized in that: It also includes an exhaust baffle (12), an exhaust device (13) and an exhaust filter; The exhaust baffle (12) is fixedly mounted on the inner wall of the heat preservation chamber (5), and the exhaust device (13) is fixedly mounted on the outer wall of the heat preservation chamber (5) for adjusting the exhaust volume and discharging the hot air in the return air cavity (6) through the exhaust filter and then through the exhaust device (13).

7. The air isotropic dry heat sterilizer according to claim 1, characterized in that: It also includes an air supply device (14) and an air supply filter; The air supply device (14) is fixedly installed on the outer wall of the insulation chamber (5) and is used to supply fresh air into the return air cavity (6) to maintain the internal air balance. The air supply filter is used to filter the incoming air.

8. The air isotropic dry heat sterilizer according to claim 1, characterized in that: Also includes an entrance cabinet door (15) and an exit cabinet door (16); The entrance cabinet door (15) and the exit cabinet door (16) are fixedly mounted on the front and rear sides of the equipment housing (1) respectively through hinges.

9. The air isotropic dry heat sterilizer according to claim 8, characterized in that: Also included is an instrument control panel (17); The instrument control panel (17) is fixedly mounted on the entrance cabinet door (15) and is used to monitor and control the operating parameters of the sterilizer, including temperature and time.

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