Indoor residue discharging device

By using a closed-loop air purification circuit and catalase solution to treat strong oxidants in the air, the problem of traditional devices affecting the pressure difference and residual air in the clean room is solved, achieving the effects of self-circulating purification and simplified installation.

CN224215512UActive Publication Date: 2026-05-08WENZHOU WEIKE BIOLOGICAL LAB EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WENZHOU WEIKE BIOLOGICAL LAB EQUIP
Filing Date
2025-08-05
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Traditional hydrogen peroxide gas emission devices require increasing the fresh air volume in the cleanroom, affecting the pressure differential of the cleanroom, and cannot effectively deal with the problem of residual strong oxidants in the air.

Method used

It adopts a closed-loop air purification circuit, which consists of an air inlet, a driver, a ventilation duct, a treatment chamber, and an air outlet. It uses catalase solution to treat strong oxidants in the air to form a self-circulating purification system. It includes components such as a liquid level sensor, a liquid injection hole, a scraper, and a guide surface to optimize the purification effect.

Benefits of technology

It enables air recycling without relying on outdoor ducts, reducing installation complexity and environmental hardware requirements, and improving purification efficiency and ease of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an indoor residue discharging device which comprises an air inlet, a driver, a ventilation pipeline, a processing bin and an air outlet. The driver drives indoor air to enter the ventilation pipeline through the air inlet, the ventilation pipeline conveys the air to the treatment bin, a solution mixed with catalase is arranged in the treatment bin, the ventilation pipeline extends into the treatment bin and is inserted into the solution, the catalase can reduce the content of a strong oxidant in the air, and the content of the strong oxidant in the air can be reduced. The treated air returns indoors through the air outlet to form a closed-loop air purification loop; and a pipeline leading to the outside is not needed, the installation complexity is reduced, cyclic utilization of indoor air is achieved, and the environmental hardware requirement is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of air disinfection, specifically an indoor residue removal device. Background Technology

[0002] With the rapid development of biomedical technology and microelectronics in the 21st century, the requirements for aseptic risk control in the research, production, and experimentation of the biomedical industry and related industries are becoming increasingly stringent, leading to ever-increasing demands on cleanroom technology. Currently, isolators sterilized with hydrogen peroxide are used as core equipment for aseptic operations in laboratories. Before each use, the equipment needs to be sterilized, and after sterilization, residual sterilized gas needs to be vented. Traditional "exhaust-exhaust" devices replenish near-air and then directly exhaust low-concentration hydrogen peroxide gas to the interlayer or outdoors. However, this requires increasing the fresh air volume in the cleanroom; otherwise, it will affect the pressure differential within the cleanroom. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an indoor residual removal device that solves the problem of strong oxidant residue in the air by forming a closed-loop air purification circuit indoors.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an indoor residual air removal device, comprising an air inlet, a driver, a ventilation duct, a treatment chamber, and an air outlet; the driver drives indoor air to enter the ventilation duct through the air inlet, the ventilation duct delivers the air to the treatment chamber, the treatment chamber contains a solution mixed with catalase, the ventilation duct extends into the treatment chamber and is inserted into the solution, the catalase solution can reduce the content of strong oxidants in the air, and the treated air returns to the room through the air outlet to form a closed-loop air purification circuit.

[0005] As a further improvement of this utility model, a liquid level sensor is provided on the processing chamber, which is used to sense whether the solution in the processing chamber has submerged the ventilation pipe.

[0006] As a further improvement of this utility model, the processing chamber is also provided with a liquid injection hole, which is used to inject or extract a solution.

[0007] As a further improvement of this utility model, a scraper is provided inside the processing chamber, which can reduce the moisture in the air.

[0008] As a further improvement of this utility model, the scraper is configured with a multi-layer structure, and the scraper is arranged along the flow direction of the airflow in the processing chamber.

[0009] As a further improvement of this utility model, a guide surface is provided on the side of the processing chamber close to the air outlet, and air returns to the room from the air outlet along the guide surface.

[0010] As a further improvement of this utility model, a flow guide hood is provided inside the processing chamber. The flow guide hood is located at the air outlet and has a notch on one side opposite to the guide surface. The guide surface is used to cooperate with the notch of the flow guide hood to form an airflow channel.

[0011] The advantages of this invention are that it eliminates the need for pipes leading to the outside, reduces installation complexity, enables indoor air recycling, and lowers environmental hardware requirements. Attached Figure Description

[0012] Figure 1 This is a top perspective view of an embodiment of the present utility model;

[0013] Figure 2 This is a right view of an embodiment of the present utility model;

[0014] Figure 3 This is a side view of an embodiment of the present utility model;

[0015] Figure 4 This is a top view of an embodiment of the present utility model.

[0016] Reference numerals: 1. Air inlet; 2. Driver; 3. Ventilation duct; 4. Processing chamber; 5. Air outlet; 6. Liquid level sensor; 7. Injection hole; 8. Scraper; 9. Guide surface; 10. Flow guide. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the embodiments shown in the accompanying drawings.

[0018] Reference Figure 1-4 As shown, an indoor residual air removal device includes an air inlet 1, a driver 2, a ventilation duct 3, a treatment chamber 4, and an air outlet 5. The driver 2 drives indoor air to enter the ventilation duct 3 through the air inlet 1. The ventilation duct 3 delivers the air to the treatment chamber 4, which contains a solution of mixed catalase. The ventilation duct 3 extends into the treatment chamber 4 and is inserted into the solution. The catalase can reduce the content of strong oxidants in the air. The treated air returns to the room through the air outlet 5, forming a closed-loop air purification circuit.

[0019] In this embodiment, the actuator 2 is configured as a negative pressure fan. The actuator 2 draws air containing strong oxidants from the room into the ventilation duct 3 through the air inlet 1. The air then enters the treatment chamber 4 along the ventilation duct 3. The treatment chamber 4 contains a solution mixed with catalase, which neutralizes the strong oxidants (hydrogen peroxide) in the air. Finally, the air returns to the room through the air outlet 5, forming a closed loop. The entire process does not require the participation of external air, achieving self-circulation and eliminating the need for outdoor ducts, thus simplifying installation and reducing space occupation. The direct contact between the air entering the treatment chamber 4 from the ventilation duct 3 via the actuator 2 and the solution maximizes the air purification effect. Therefore, in this embodiment, the ventilation duct 3 is directly inserted into the treatment chamber 4, and the solution completely submerges the ventilation duct 3. When air enters the treatment chamber 4, it directly enters the solution, reducing the amount of residual air in the treatment chamber 4.

[0020] Preferably, a liquid level sensor 6 is provided on the processing chamber 4. The liquid level sensor 6 is used to sense whether the solution in the processing chamber 4 has submerged the ventilation duct 3.

[0021] In this embodiment, the liquid level sensor 6 is used to detect whether the solution has submerged the ventilation duct 3, eliminating the need for manual monitoring and improving work efficiency.

[0022] Preferably, the processing chamber 4 is also provided with a liquid injection hole 7, which is used to inject or extract the solution.

[0023] In this embodiment, the injection port 7 allows for direct adjustment of the solution level without opening the treatment chamber 4, making operation simple and convenient. When the solution volume in the treatment chamber 4 is insufficient to submerge the ventilation duct 3, new solution can be injected directly through the injection port 7. Over time, the catalase content in the solution within the treatment chamber 4 will decrease.

[0024] Furthermore, a scraper 8 is provided inside the processing chamber 4, which can reduce the moisture in the air.

[0025] In this embodiment, the air purified by catalase contains a lot of moisture. If it is returned directly to the room from the air outlet 5, the room will become humid. Therefore, a scraper 8 is installed in the treatment chamber 4 to reduce the moisture in the air.

[0026] Preferably, the scraper 8 is configured with a multi-layer structure, and the scraper 8 is arranged along the flow direction of the airflow in the processing chamber 4.

[0027] In this embodiment, air flows along the direction of the scraper 8, and there are multiple scrapers 8 along the flow path. The scrapers 8 continuously scrape out the moisture in the air, which stays on the scraper 8, and the moisture is scraped off layer by layer.

[0028] Preferably, the treatment chamber 4 is provided with a guide surface 9 on the side close to the air outlet 5, and the air returns to the room from the air outlet 5 along the guide surface 9.

[0029] In this embodiment, the guide surface 9 can guide air to the air outlet 5, thereby reducing the travel distance of the air.

[0030] Preferably, a flow guide shroud 10 is provided inside the processing chamber 4. The flow guide shroud 10 is located at the air outlet 5 and has a notch on one side opposite to the guide surface 9. The guide surface 9 is used to cooperate with the notch of the flow guide shroud 10 to form an air flow channel.

[0031] In this embodiment, the notch between the guide surface 9 and the air guide shroud 10 forms an airflow channel, allowing air to return to the room along the airflow channel and preventing air from accumulating in the processing chamber 4.

[0032] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. An indoor waste disposal device, characterized in that, It includes an air inlet, a driver, a ventilation duct, a treatment chamber, and an air outlet; the driver drives indoor air to enter the ventilation duct through the air inlet, the ventilation duct delivers the air to the treatment chamber, the treatment chamber contains a solution of mixed catalase, the ventilation duct extends into the treatment chamber and is inserted into the solution, the catalase can reduce the content of strong oxidants in the air, and the treated air returns to the room through the air outlet to form a closed-loop air purification circuit.

2. The indoor residue removal device according to claim 1, characterized in that, The processing chamber is equipped with a liquid level sensor, which is used to sense whether the solution in the processing chamber has submerged the ventilation duct.

3. The indoor residue removal device according to claim 1, characterized in that, The processing chamber is also provided with a liquid injection hole, which is used to inject or extract the solution.

4. The indoor residue removal device according to claim 1, characterized in that, The processing chamber is equipped with a scraper, which can reduce the moisture in the air.

5. The indoor residue removal device according to claim 4, characterized in that, The scraper is configured with a multi-layer structure, and the scraper is arranged along the flow direction of the airflow in the processing chamber.

6. The indoor waste removal device according to claim 1, characterized in that, The processing chamber has a guide surface on the side close to the air outlet, and the air returns to the room from the air outlet along the guide surface.

7. The indoor residue removal device according to claim 6, characterized in that, The processing chamber is equipped with a flow guide hood, which is located at the air outlet and has a notch on one side opposite the guide surface. The guide surface is used to cooperate with the notch of the flow guide hood to form an airflow channel.