Air shower channel of clean room
By setting up an air shower chamber and an exhaust chamber in the air shower passage of the clean room, the reverse airflow design is used to solve the problem of dust difficult to deal with due to the dispersion of the blowing direction, and the dust removal effect is significantly improved.
Patent Information
- Application Number
- CN202421018015.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-11
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2034-05-11
AI Technical Summary
In the air shower channel of the existing clean room, the blowing direction is scattered, making it difficult for dust to be processed in time and the dust removal effect is not ideal.
A air shower channel of a clean room is designed. By setting up an air shower chamber and an exhaust chamber in the passage, the blowing direction of the air shower chamber is towards the inlet side, and the air inlet of the exhaust chamber is set against the blowing direction of the air shower chamber, so that the polluted air flow is quickly extracted and purified.
Through the reverse designer's entry path and the airflow flow path, the dust content in the airflow is gradually reduced, which improves the air shower dust removal effect and avoids dust entering a specific site when the passage door is opened.
Smart Images
Figure CN222678972U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of clean equipment, in particular to an air shower channel of a clean room. Background Art
[0002] Air shower rooms are used in scenarios with high environmental requirements, such as some laboratories, farms, or high-precision instrument production and processing workshops. When entering the above sites, staff need to perform dust removal and sterilization and disinfection operations first. The existing clean rooms have the following problems in dust removal. The dust removal wind is mostly blown vertically, causing the airflow to disperse in all directions in the channel, resulting in a large amount of dust on each path in the channel. Even in the case of negative pressure ventilation, it is difficult to quickly remove the dispersed dust, which results in unsatisfactory purification treatment effect. Utility Model Content
[0003] The technical problem to be solved by the utility model is that the blowing direction is scattered during air showering, so that dust can quickly reach every corner of the clean room or the passage, and it is not easy to be handled in time, resulting in an unsignificant dust removal effect. In view of the above-mentioned defects of the prior art, an air shower passage for a clean room is provided.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0005] An air shower channel for a clean room is constructed, the channel having an inlet arranged at the front end and an outlet arranged at the rear end, an air shower bin and an exhaust bin are formed in the channel between the inlet and the outlet, the air shower bin is arranged close to the outlet side, the exhaust bin is arranged close to the inlet side, and the blowing direction of the air shower bin blows toward the inlet side, and the air inlet of the exhaust bin is arranged in the direction facing the blowing direction of the air shower bin, so that the contaminated airflow after passing through the air shower bin can be quickly extracted and purified by the exhaust bin.
[0006] Preferably, the exhaust bin is arranged near the outlet side, the exhaust bin is located in the middle of the passage, two corridors are formed on both sides of the exhaust bin, and a retaining wall is provided at one end of each corridor away from the entrance.
[0007] Preferably, a pass is formed between the two retaining walls for workers and polluted wind to pass through.
[0008] Preferably, the air inlet of the exhaust bin is arranged facing the pass, and the width of the air inlet of the exhaust bin is greater than the width of the pass, and the height of the air inlet of the exhaust bin is greater than the height of the pass.
[0009] Preferably, wind curtains are provided between the two sides of the exhaust bin and the corresponding retaining walls to prevent polluted wind from being discharged through the corridors and entrances on both sides of the exhaust bin.
[0010] Preferably, the air outlet of the exhaust bin is connected to an external sterilization and dust removal device so that the discharged contaminated air can be sterilized and dust removed by the external sterilization and dust removal device.
[0011] Preferably, a plurality of air ducts are provided on both sides of the air shower chamber near the outlet, and one end of the air duct located in the air shower chamber is bent toward the entrance of the channel so that the air flow in the air shower chamber flows toward the exhaust chamber during air showering, so that the polluted air can be extracted in time.
[0012] Preferably, a purified air collecting bin is provided on the outside of the channel where the air shower bin is located, and a purified liquid with a certain liquid level height is provided at the bottom of the purified air collecting bin, and one end of the air duct located on the outside of the channel extends into the air collecting bin, and the end of the air duct located in the air collecting bin does not contact the liquid surface of the purified liquid.
[0013] Preferably, the channel further comprises a blower, the air outlet of the blower extends into the air collecting bin through an air inlet pipe, and the end of the air inlet pipe is inserted into the purification liquid.
[0014] The beneficial effects of the utility model are: the utility model has a simple design, and the personnel entry path is opposite to the air flow path, which can ensure that the dust content in the airflow on the personnel entry path is gradually reduced, thereby improving the air shower dust removal effect; the air flow blown out by the blowing pipe of the air shower bin is toward the entrance direction of the channel, which forms a negative pressure at the outlet of the channel, thereby preventing the dust in the air shower bin from entering a specific site through the outlet when the channel door is opened. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the utility model will be further described below in conjunction with the drawings and embodiments. The drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. Note: The following drawings do not show the top of the channel:
[0016] Figure 1 It is a three-dimensional diagram of the utility model.
[0017] Figure 2 It is a top view of the utility model.
[0018] Figure 3 The utility model is a cross-sectional view Figure 1 .
[0019] Figure 4 The utility model is a cross-sectional view Figure 2 . DETAILED DESCRIPTION
[0020] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be described clearly and completely in combination with the technical solution in the embodiments of the utility model. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the utility model.
[0021] It should be noted that in the present application, the entrance at the front end of the channel refers to the entrance end of the channel itself, and the exit at the rear end of the channel refers to the exit end of the channel itself. People can enter the channel from the entrance and leave the channel from the exit.
[0022] The air shower channel of the clean room involved in the utility model is mainly used for sterilizing and dusting people or articles entering a specific place, especially arranged at the entrance of a precision equipment processing workshop, a laboratory, etc. with a high requirement for environmental cleanliness, so that people entering can undergo dust removal and sterilization treatment through the air shower channel of the clean room before entering, and the blowing direction during the treatment process flows from the outlet of the clean room (channel) to the entrance, which can ensure that the dust content on the path approaching the specific place will become less and less, thereby ensuring that the people or articles treated by this channel meet the requirements.
[0023] A preferred embodiment of the utility model is an air shower channel 100 for a clean room, the channel 100 has an inlet 101 arranged at the front end and an outlet 102 arranged at the rear end, an air shower chamber 200 and an exhaust chamber 300 are formed in the channel between the inlet 101 and the outlet 102, wherein the air shower chamber 200 is used to perform air shower dust removal on personnel or articles entering the channel 100, and the exhaust chamber 300 is used to collect and discharge the contaminated airflow with a high dust content generated by the air shower chamber 200.
[0024] like Figure 1-4 As shown, the air shower chamber 200 is arranged near the outlet 102, so that people or objects undergo a longer air shower treatment after entering the air shower chamber 200 from the entrance 101, thereby extending the length of the air shower chamber 200 domain, and indirectly extending the air shower treatment time; the exhaust chamber 300 is arranged near the entrance 101, and the blowing direction of the air shower chamber 200 blows toward the entrance 101 side, and the air inlet direction of the exhaust chamber 300 is arranged facing the blowing direction of the air shower chamber 200, so that the contaminated air flow after passing through the air shower chamber 200 can be quickly extracted and purified by the exhaust chamber 300, so that the air flow of the air shower chamber 200 will automatically enter the exhaust chamber 300 under its own movement trend, so that the exhaust chamber 300 can be set with a smaller exhaust power to meet the exhaust requirements.
[0025] Specifically, the exhaust chamber 300 includes a funnel-shaped air collecting hood 301 and an exhaust fan (the exhaust fan is not shown in the attached drawings), the funnel-shaped air collecting hood 301 includes an air inlet and an exhaust outlet, the air inlet of the exhaust fan is connected to the exhaust outlet of the air collecting hood 301, so that a negative pressure is formed in the air collecting hood 301 through the exhaust fan. A filter screen is provided inside the air collecting hood 301 (the filter screen is not shown in the attached drawings). The exhaust chamber 300 is arranged near one side of the outlet 102, and the exhaust chamber 300 is located in the middle of the passage 100, so that two corridors 400 are formed on both sides of the exhaust chamber 300, and the corridors 400 are used for personnel to pass through and enter the air shower chamber 200. A retaining wall 500 is provided at one end of each corridor 400 away from the entrance 101, and the retaining wall 500 can block the airflow of the air shower chamber 200 to minimize the airflow of the air shower chamber 200 from the corridor 400 and the entrance 101.
[0026] In this embodiment, the air flow path in the air shower chamber 200 and the exhaust path in the exhaust chamber 300 are not in the same straight line as the walking path of people before entering the air shower chamber. This can reduce the air flow in the air shower air flow path and the exhaust path entering the walking path of people before entering the air shower chamber, thereby avoiding people from being in an environment with high dust content.
[0027] As an optimization of the above embodiment, a pass 600 is formed between the two retaining walls 500 for people and polluted air to pass through; the pass 600 is arranged so that when the passage is in operation, the exhaust air of the exhaust bin 300 and the blowing air of the air shower bin 200 jointly form a strong airflow at the pass 600, so that when people or articles pass through the pass 600, most of the dust they carry can be removed, and the removed dust can be quickly extracted by the exhaust bin 300.
[0028] Furthermore, in order to prevent the retaining wall 500 from blocking the airflow near the corners on both sides of the air shower chamber 200 and causing dust accumulation, the retaining wall 500 is arranged on an inclined surface on one side of the air shower chamber 200, so that the aforementioned pass 600 is located on one side of the air shower chamber 200 in a funnel shape, so that the airflow on both sides can also smoothly converge to the middle and enter the exhaust chamber 300 through the pass 600.
[0029] In order to prevent the airflow from the air shower chamber 200 from blowing directly toward the corridor, the air inlet of the exhaust chamber 300 is arranged facing the door 600, and the width of the air inlet of the exhaust chamber 300 is greater than the width of the door 600, and the height of the air inlet of the exhaust chamber 300 is greater than the height of the door 600.
[0030] In order to ensure that the air flow path flows along the preset path (i.e., flows from the air shower chamber to the exhaust chamber) without passing through other paths, a crotch wind component 700 is arranged between the two sides of the exhaust chamber 300 and the corresponding retaining wall 500 to isolate the corridor 400 from the exhaust chamber 300 and the air shower chamber 200. For example, the crotch wind component 700 is an automatic door, a wind shield curtain, etc., and an automatic door is preferably used; when a wind shield curtain is used, a counterweight block is provided at the bottom of the wind shield curtain to ensure that the wind shield curtain can maintain a vertical state to prevent polluted wind from being discharged through the corridors 400 on both sides of the exhaust chamber 300 and the entrance 101.
[0031] In order to prevent the exhaust bin 300 from directly blowing the polluted air flow containing dust into the atmosphere, the air outlet of the exhaust bin 300 is connected to an external sterilization and dust removal device so that the exhausted polluted air can be sterilized and dust removed by the external sterilization and dust removal device. The sterilization and dust removal device here is a common sterilization and dust removal device on the market, and can also be replaced by an ordinary dust removal device. At this time, the dust removal water in the dust removal device is a disinfectant with sterilization and disinfection functions.
[0032] In order to ensure that the blowing direction in the air shower chamber 200 is toward the entrance 101 of the channel 100, a plurality of air ducts 800 are provided on both sides of the air shower chamber 200 near the outlet 102. One end of the air duct 800 located in the air shower chamber 200 is bent toward the entrance 101 of the channel 100, so that the airflow in the air shower chamber 200 flows toward the exhaust chamber 300 during air showering, so that the polluted air can be extracted in time.
[0033] In order to ensure purification when entering the air shower chamber 200, a purified wind collecting chamber 900 is provided on the outside of the channel 100 where the air shower chamber 200 is located, and a purified liquid with a certain liquid level height is provided at the bottom of the purified wind collecting chamber 900, and one end of the air duct 800 located on the outside of the channel 100 extends into the purified wind collecting chamber 900, and the end of the air duct 800 located in the purified wind collecting chamber 900 does not contact the liquid surface of the purified liquid, so that the external airflow can first be dust-removed and disinfected with the purified liquid before entering the purified wind collecting chamber 900, and then can pass through the air duct 800 to enter the air shower chamber 200, and the airflow entering the air shower chamber 200 can carry a certain amount of purified liquid in atomized state, which can further play a role in sterilization and disinfection.
[0034] In order to provide a continuous airflow for the air shower chamber 200, the channel 100 also includes a blower (the blower is not shown in the drawings), the air outlet of the blower extends through the air inlet pipe to the purified air collection chamber 900, and the end of the air inlet pipe 901 is inserted into the purified liquid.
[0035] Of course, in order to prevent the dust falling on the ground in the air shower chamber 200 from being blown up again by the air flow, a dust removal tank 103 is provided at the bottom of the channel 100, and a grille 104 is provided above the dust removal tank 103 for personnel to walk on the mowing surface.
[0036] It should be understood that the present invention is described by some embodiments, and those skilled in the art are aware that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.
Claims
1. An air shower channel for a clean room, the channel having an inlet arranged at the front end and an outlet arranged at the rear end, an air shower chamber and an exhaust chamber formed in the channel between the inlet and the outlet, characterized in that: The air shower bin is arranged near the outlet side, the exhaust bin is arranged near the inlet side, and the blowing direction of the air shower bin is toward the inlet side, and the air inlet direction of the exhaust bin is arranged facing the blowing direction of the air shower bin, so that the contaminated airflow after passing through the air shower bin can be quickly extracted and purified by the exhaust bin.
2. The air shower channel of a clean room according to claim 1, characterized in that: The exhaust bin is arranged near the outlet side and is located in the middle of the passage. Two corridors are formed on both sides of the exhaust bin, and a retaining wall is arranged at one end of each corridor away from the entrance.
3. The air shower channel of a clean room according to claim 2, characterized in that: A pass is formed between the two retaining walls for workers and polluted air to pass through.
4. The air shower channel of a clean room according to claim 3, characterized in that: The air inlet of the exhaust bin is arranged facing the pass, and the width of the air inlet of the exhaust bin is greater than the width of the pass, and the height of the air inlet of the exhaust bin is greater than the height of the pass.
5. The air shower channel of a clean room according to claim 4, characterized in that: Wind curtains are arranged between the two sides of the exhaust bin and the corresponding retaining walls to prevent polluted wind from being discharged through the corridors and entrances on both sides of the exhaust bin.
6. The air shower channel of a clean room according to claim 5, characterized in that: The air outlet of the exhaust bin is connected to an external sterilization and dust removal device so that the discharged polluted air can be sterilized and dust removed by the external sterilization and dust removal device.
7. The air shower channel of a clean room according to claim 1, characterized in that: Several air ducts are provided on both sides of the air shower chamber near the outlet. One end of the air duct located in the air shower chamber is bent toward the entrance of the passage so that the air flow in the air shower chamber flows toward the exhaust chamber during air showering, so that the polluted air can be extracted in time.
8. The air shower channel of a clean room according to claim 7, characterized in that: A purified air collecting bin is provided on the outside of the channel where the air shower bin is located, and a purified liquid with a certain liquid level height is provided on the bottom of the purified air collecting bin. One end of the air duct located on the outside of the channel extends into the air collecting bin, and one end of the air duct located in the air collecting bin does not contact the liquid surface of the purified liquid.
9. The air shower channel of a clean room according to claim 7, characterized in that: The channel also includes a blower, the air outlet of the blower extends into the air collecting bin through an air inlet pipe, and the end of the air inlet pipe is inserted into the purification liquid.