CN114322125A - Fresh air filtering device for clean room and use method thereof - Google Patents
Fresh air filtering device for clean room and use method thereof Download PDFInfo
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- CN114322125A CN114322125A CN202111563636.3A CN202111563636A CN114322125A CN 114322125 A CN114322125 A CN 114322125A CN 202111563636 A CN202111563636 A CN 202111563636A CN 114322125 A CN114322125 A CN 114322125A
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Abstract
The invention discloses a fresh air filtering device for a clean room, which comprises: the primary purification mechanism is used for primarily filtering air, and the left side of the primary purification mechanism is connected with an air inlet pipe; the settling tank is used for settling and collecting dust and is arranged at the lower part of the primary mechanism; the secondary filtering mechanism is used for carrying out secondary filtering on air and is arranged on the right side of the settling tank; the temperature adjusting mechanism is used for adjusting the temperature of the filtered space and is arranged at the upper part of the secondary filtering mechanism; the controller is arranged on the outer side of the temperature adjusting mechanism, the secondary filtering mechanism and the temperature adjusting mechanism are respectively connected with the controller, and the controller is connected with an external clean room control center. The invention can heat the fresh air according to the requirement, has the function of preheating the untreated air and improves the heat efficiency of the device.
Description
Technical Field
The invention relates to the technical field of air filtration, in particular to a fresh air filtering device for a clean room.
Background
The clean room has high requirements on air cleanliness, temperature and the like, and is generally applied to the fields of semiconductor processing, precision instrument processing and the like which have high requirements on cleanliness. The traditional clean room lacks necessary temperature regulation function and air preheating function, needs independent equipment to carry out the regulation of temperature, and the device of temperature regulation has been equipped with to some equipment in time simultaneously, and unit energy consumption is generally higher.
Disclosure of Invention
The invention aims to provide a fresh air filtering device for a clean room, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a fresh air filtering device for a clean room, comprising:
the primary purification mechanism is used for primarily filtering air, and the left side of the primary purification mechanism is connected with an air inlet pipe;
the settling tank is used for settling and collecting dust and is arranged at the lower part of the primary mechanism;
the secondary filtering mechanism is used for carrying out secondary filtering on air and is arranged on the right side of the settling tank;
the temperature adjusting mechanism is used for adjusting the temperature of the filtered space and is arranged at the upper part of the secondary filtering mechanism;
the controller is arranged on the outer side of the temperature adjusting mechanism, the secondary filtering mechanism and the temperature adjusting mechanism are respectively connected with the controller, and the controller is connected with an external clean room control center.
The primary purification mechanism comprises a primary purification box, a middle partition plate and a plurality of first filter elements arranged at the lower part of the middle partition plate, the edge of the middle partition plate is connected with the inner wall of the primary purification box, the upper parts of the first filter elements are connected with a first air inlet pipe and a first air outlet pipe, the upper parts of the first air inlet pipes penetrate through the partition plate, and the lower parts of the first air outlet pipes penetrate through the primary purification box and extend into the sedimentation box;
one side of the primary purifying box is hinged with a first maintenance box door, the air inlet pipe is connected with a gas flowmeter, and the gas flowmeter is connected with the controller.
The lower part of the settling tank is connected with a dust collecting box, and the upper part of the dust collecting box is provided with a filter screen.
The secondary filtering mechanism comprises a secondary filtering box, a second filter element, a third filter element, an air inlet flow dividing pipe, an air outlet pipe and an electromagnetic three-way valve, the second filter element and the third filter element are arranged in the secondary filtering box, two sides of the second filter element are connected with a second air inlet pipe and a second air outlet pipe, two sides of the third filter element are respectively connected with a third air inlet pipe and a third air outlet pipe, the second air inlet pipe and the third air inlet pipe are connected through the air inlet flow dividing pipe of the electromagnetic three-way valve, the left side of the air inlet flow dividing pipe penetrates through the secondary filtering box and extends into the settling box, the left side of the air inlet flow dividing pipe is connected with an air guide valve, the air guide valve is an electromagnetic valve, the second air outlet pipe and the third air outlet pipe are connected with the air outlet pipe, the upper end of the air outlet pipe penetrates through the secondary filtering box upwards and extends into the temperature adjusting mechanism, and the air guide valve and the electromagnetic three-way valve are respectively connected with a controller;
and one side of the secondary filter box is hinged with a second maintenance box door.
The temperature adjusting mechanism comprises a temperature adjusting box, a gas tank, heating rods arranged on two sides of the gas tank, a fan, a temperature sensor and a pressure sensor, wherein the temperature sensor and the pressure sensor are arranged in the gas tank;
and a maintenance box door III is hinged to one side of the temperature adjusting box.
The upper portion of the temperature adjusting box is communicated with a circulating pipe, the circulating pipe is located on the left side of the gas tank, a second electromagnetic valve is connected to the circulating pipe, a pressurizing pipe is arranged on the upper side of the temperature adjusting box, two ends of the pressurizing pipe are respectively communicated with the temperature adjusting box and the primary purifying box, a one-way valve is connected to the pressurizing pipe, and the second electromagnetic valve and the one-way valve are respectively connected with the controller.
And a second air pressure sensor and a third air pressure sensor are respectively arranged in the second air inlet pipe and the third air inlet pipe, and the second air pressure sensor and the third air pressure sensor are respectively connected with the controller.
A use method of a fresh air filtering device for a clean room comprises the following specific steps:
s1, connecting an air source;
s2, primary filtration is carried out;
s3, settling dust;
s4, secondary filtration;
s5, adjusting the temperature;
and S6, conveying fresh air.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the air pressure in the air inlet pipe II and the air pressure in the air inlet pipe III can be detected through the air pressure sensor II and the air pressure sensor III, when the air pressure value is higher than a corresponding fault value arranged in the controller, the blockage of the filter element II connected with the air inlet pipe II or the air inlet pipe III is shown, the controller controls the electromagnetic three-way valve to switch, the unblocked filter element II is switched on, and the normal operation of a secondary filtering process is ensured;
2. in the invention, the fan can be started through the controller, and the surface of the air tank is cooled through the fan; in addition, under the action of the fan, air in the temperature adjusting box enters the pressurizing pipe and enters the primary purifying box through the pressurizing pipe to pressurize the primary purifying box; meanwhile, the entering hot air is heated by the gas in the original primary purifying box, so that the preheating function is realized, the heat efficiency is improved, and the energy consumption of the heating rod can be reduced.
Drawings
FIG. 1 is a schematic front view of a fresh air filtering device for a clean room according to the present invention;
FIG. 2 is a front sectional view of a fresh air filtering device for a clean room according to the present invention;
FIG. 3 is a schematic top view of a fresh air filtering device for a clean room according to the present invention;
FIG. 4 is a schematic side view of a fresh air filtering device for a clean room according to the present invention;
FIG. 5 is a schematic perspective view of a fresh air filtering device for a clean room according to the present invention;
FIG. 6 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
fig. 7 is a block diagram illustrating a method for using a fresh air filtering device for a clean room according to the present invention.
In the figure: the device comprises a primary purification mechanism 1, a primary purification box 101, a middle partition plate 102, a first filter element 103, a first air inlet pipe 104, a first air outlet pipe 105, a settling box 2, a dust collection box 201, a secondary filtration mechanism 3, a secondary filtration box 301, a second filter element 302, a third filter element 303, an air inlet shunt pipe 304, an air outlet pipe 305, an electromagnetic three-way valve 306, a temperature regulation mechanism 4, a temperature regulation box 401, an air tank 402, a heating rod 403, a fan 404, a temperature sensor 405, an air pressure sensor 406, a controller 5, a second air inlet pipe 6, a second air outlet pipe 7, a third air inlet pipe 8, a third air outlet pipe 9, a fresh air pipe 10, a circulation pipe 11, a pressurization pipe 12, a second check valve 13, a second air pressure sensor 14 and a third air pressure sensor 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-6, the present invention provides a technical solution: a fresh air filtering device for a clean room, comprising:
the primary purification mechanism 1 is used for primary filtration of air, and the left side of the primary purification mechanism 1 is connected with an air inlet pipe;
the settling tank 2 is used for settling and collecting dust, and the settling tank 2 is arranged at the lower part of the primary mechanism;
the secondary filtering mechanism 3 is used for carrying out secondary filtering on the air, and the secondary filtering mechanism 3 is arranged on the right side of the settling tank 2;
the temperature adjusting mechanism 4 is used for adjusting the temperature of the filtered space, and the temperature adjusting mechanism 4 is arranged at the upper part of the secondary filtering mechanism 3;
and the controller 5 is arranged on the outer side of the temperature adjusting mechanism 4, the secondary filtering mechanism 3 and the temperature adjusting mechanism 4 are respectively connected with the controller 5, and the controller 5 is connected with an external clean room control center.
The primary purification mechanism 1 comprises a primary purification box 101, a middle partition plate 102 and a plurality of filter elements I103 which are arranged at the lower part of the middle partition plate 102, the edge of the middle partition plate 102 is connected with the inner wall of the primary purification box 101, the upper parts of the filter elements I103 are connected with an air inlet pipe I104 and an air outlet pipe I105, the upper part of the air inlet pipe I104 penetrates through the partition plate, and the lower part of the air outlet pipe I105 penetrates through the primary purification box 101 and extends into the sedimentation box 2;
one side of the primary purifying box 101 is hinged with a first maintenance box door, the air inlet pipe is connected with a gas flowmeter, and the gas flowmeter is connected with the controller 5.
The lower part of the settling tank 2 is connected with a dust collecting box 201, and the upper part of the dust collecting box 201 is provided with a filter screen.
The secondary filtering mechanism 3 comprises a secondary filtering tank 301, a second filter element 302 and a third filter element 303, the air inlet flow dividing pipe 304, the air outlet pipe 305 and the electromagnetic three-way valve 306 are arranged, the second filter element 302 and the third filter element 303 are arranged in the secondary filter box 301, two sides of the second filter element 302 are connected with a second air inlet pipe 6 and a second air outlet pipe 7, two sides of the third filter element 303 are respectively connected with a third air inlet pipe 8 and a third air outlet pipe 9, the second air inlet pipe 6 and the third air inlet pipe 8 are connected through the electromagnetic three-way valve 306, the left side of the second air inlet flow dividing pipe 304 penetrates through the secondary filter box 301 and extends into the settling box 2, the left side of the first air inlet flow dividing pipe 304 is connected with an air guide valve, the air guide valve is an electromagnetic valve, the second air outlet pipe 7 and the third air outlet pipe 9 are connected with the air outlet pipe 305, the upper end of the air outlet pipe 305 upwards penetrates through the secondary filter box 301 and extends into the temperature adjusting mechanism 4, and the air guide valve and the electromagnetic three-way valve 306 are respectively connected with the controller 5;
one side of the secondary filter tank 301 is hinged with a second maintenance tank door.
The temperature adjusting mechanism 4 comprises a temperature adjusting box 401, a gas tank 402, heating rods 403 arranged on two sides of the gas tank 402, a fan 404, a temperature sensor 405 and a gas pressure sensor 406 which are arranged in the gas tank 402, the gas pressure sensor 406 and the temperature sensor 405 are respectively connected with the upper inner wall and the lower inner wall of the gas tank 402, a plurality of heat conducting fins are arranged on the surfaces of two sides of the gas tank 402, the fan 404 is arranged on the left side in the temperature adjusting box 401, the fan 404 is connected with the controller 5, the upper part of the temperature adjusting box 401 is connected with a plurality of fresh air pipes 10, fresh air outlets are communicated with the gas tank 402, the upper sides of the fresh air pipes 10 are connected with a first electromagnetic valve, and the first electromagnetic valve is connected with the controller 5;
one side of the temperature adjusting box 401 is hinged with a maintenance box door III.
The upper part of the temperature adjusting box 401 is communicated with a circulation pipe 11, the circulation pipe 11 is positioned on the left side of the gas tank 402, a first check valve is connected onto the circulation pipe 11, a pressurization pipe 12 is installed on the upper side of the temperature adjusting box 401, two ends of the pressurization pipe 12 are respectively communicated with the temperature adjusting box 401 and the primary purification box 101, a second check valve 13 is connected onto the pressurization pipe 12, and the first check valve and the second check valve 13 are respectively connected with the controller 5.
And a second air pressure sensor 14 and a third air pressure sensor 15 are respectively arranged in the second air inlet pipe 6 and the third air inlet pipe 8, and the second air pressure sensor 14 and the third air pressure sensor 15 are respectively connected with the controller 5.
Referring to fig. 7, a method for using a fresh air filtering device for a clean room includes the following steps:
s1, connecting an air source: is connected with an external air source through an air inlet pipe, and external air enters the upper space of the primary purification box 101;
s2, primary filtration: the air entering the primary purifying box 101 enters the first filter element 103 from the first air inlet pipe 104, and primary filtering of the air is carried out through the first filter element 103;
s3, settling dust: after the air passing through the first filter element 103 enters the settling tank 2 from the first air outlet pipe 105, the flow rate is reduced, and the unfiltered dust particles in the air can settle down and finally accumulate in the dust collecting box 201 at the bottom of the settling tank 2;
s4, secondary filtration: the air guide valve is opened through the controller 5, the air in the settling tank 2 enters the air inlet shunt pipe 304, the electromagnetic three-way valve 306 is controlled through the controller 5 to connect the air inlet shunt pipe 304 and the air inlet pipe II 6 or the air inlet pipe III 8, and secondary filtration is carried out through the filter element II 302 respectively;
s5, temperature adjustment: the gas after secondary filtration enters the gas tank 402 through the gas outlet pipe 305, the temperature of the gas in the gas tank 402 is detected through the temperature sensor 405, the temperature information is transmitted to the controller 5, and the controller 5 controls the heating rod 403 to heat or controls the fan 404 to cool the gas tank 402 according to the temperature;
s6, conveying fresh air: the air pressure in the air tank 402 is sensed through the pressure sensor, the air pressure value is transmitted to the controller 5, and the controller 5 controls the first electromagnetic valve to be opened to convey fresh air to the outside.
The working principle is as follows: when the air purifier is used, the flow of gas flowing out of the air outlet pipe I105 can be detected through the flowmeter, a flow signal is transmitted to the controller 5, if the flow value is lower than an installation fault value, the filter element I103 is seriously blocked, and the controller 5 transmits fault information to an external clean room control center to inform a manager to replace the blocked filter element I103;
the air guide valve is opened through the controller 5, air in the settling tank 2 enters the air inlet shunt pipe 304, the air inlet shunt pipe 304 and the air inlet pipe II 6 or the air inlet pipe III 8 are connected through the electromagnetic three-way valve 306 under the control of the controller 5, secondary filtration is carried out through the filter element II 302 respectively, air pressure in the air inlet pipe II 6 and the air inlet pipe III 8 can be detected through the air pressure sensor II 14 and the air pressure sensor III 15, when the air pressure value is higher than a corresponding fault value installed in the controller 5, blockage of the filter element II 302 connected with the air inlet pipe II 6 or the air inlet pipe III 8 is indicated, the electromagnetic three-way valve 306 is controlled by the controller 5 to be switched, the unblocked filter element II 302 is switched on, and the normal operation of a secondary filtration process is ensured;
the gas after secondary filtration enters the gas tank 402 through the gas outlet pipe 305, the temperature of the gas in the gas tank 402 is detected through the temperature sensor 405, the temperature information is transmitted to the controller 5, and the controller 5 controls the heating rod 403 to heat or controls the fan 404 to cool the gas tank 402 according to the temperature; so as to adjust the temperature of the air in the air tank 402, thereby adjusting the temperature of fresh air;
further, by the action of the fan 404, the air in the temperature adjusting tank 401 enters into the pressurizing pipe 12, enters into the primary cleaning tank 101 through the pressurizing pipe 12, and pressurizes the primary cleaning tank 101; meanwhile, the heat exchange is carried out between the inlet air and the gas in the original primary purification box 101, so that the preheating function is realized, the heat efficiency is improved, and the energy consumption of the heating rod 403 can be reduced;
the air pressure in the air tank 402 is sensed by the pressure sensor, the air pressure value is transmitted to the controller 5, the controller 5 controls the electromagnetic valve to open, fresh air is conveyed to the outside, if the air pressure in the air tank 402 exceeds a set value, the air outlet position of the fresh air pipe 10 is blocked, the controller 5 sends a signal to the control center of the external clean room, and meanwhile, corresponding personnel are informed to process the air to ensure ventilation;
the cooperation of the flow pipe 11 and the one-way valve ensures that the air in the temperature adjustment tank 401 can be effectively supplemented.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a toilet uses new trend filter equipment which characterized in that: the method comprises the following steps:
the primary purification mechanism (1) is used for primarily filtering air, and the left side of the primary purification mechanism (1) is connected with an air inlet pipe;
a settling tank (2) for settling and collecting dust, the settling tank (2) being arranged at the lower part of the primary mechanism;
the secondary filtering mechanism (3) is used for carrying out secondary filtering on air, and the secondary filtering mechanism (3) is arranged on the right side of the settling tank (2);
the temperature adjusting mechanism (4) is used for adjusting the temperature of the filtered space, and the temperature adjusting mechanism (4) is arranged at the upper part of the secondary filtering mechanism (3);
the controller (5) is arranged on the outer side of the temperature adjusting mechanism (4), the secondary filtering mechanism (3) and the temperature adjusting mechanism (4) are respectively connected with the controller (5), and the controller (5) is connected with an external clean room control center.
2. The fresh air filtering device for the clean room according to claim 1, wherein: the primary purification mechanism (1) comprises a primary purification box (101), a middle partition plate (102) and a plurality of filter elements I (103) arranged at the lower part of the middle partition plate (102), the edge of the middle partition plate (102) is connected with the inner wall of the primary purification box (101), the upper parts of the filter elements I (103) are connected with an air inlet pipe I (104) and an air outlet pipe I (105), the upper part of the air inlet pipe I (104) penetrates through the partition plate, and the lower part of the air outlet pipe I (105) penetrates through the primary purification box (101) and extends into the sedimentation box (2);
one side of the primary purification box (101) is hinged with a first maintenance box door, a gas flowmeter is connected to the air inlet pipe, and the gas flowmeter is connected with the controller (5).
3. The fresh air filtering device for the clean room according to claim 1, wherein: the lower part of the settling tank (2) is connected with a dust collecting box (201), and the upper part of the dust collecting box (201) is provided with a filter screen.
4. The fresh air filtering device for the clean room according to claim 1, wherein: the secondary filter mechanism (3) comprises a secondary filter box (301), a second filter element (302), a third filter element (303), an air inlet flow dividing pipe (304), an air outlet pipe (305) and an electromagnetic three-way valve (306), wherein the second filter element (302) and the third filter element (303) are arranged in the secondary filter box (301), two sides of the second filter element (302) are connected with a second air inlet pipe (6) and a second air outlet pipe (7), two sides of the third filter element (303) are respectively connected with a third air inlet pipe (8) and a third air outlet pipe (9), the second air inlet pipe (6) and the third air inlet pipe (8) are connected with the air inlet flow dividing pipe (304) through the electromagnetic three-way valve (306), the left side of the air inlet flow dividing pipe (304) penetrates through the secondary filter box (301) and extends into the sedimentation box (2), the left side of the air inlet flow dividing pipe (304) is connected with an air guide valve which is an electromagnetic valve, the second air outlet pipe (7) and the third air outlet pipe (9) are connected with the air outlet pipe (305), the upper end of the air outlet pipe (305) penetrates through the secondary filter tank (301) upwards and extends into the temperature adjusting mechanism (4), and the air guide valve and the electromagnetic three-way valve (306) are respectively connected with the controller (5); one side of the secondary filter box (301) is hinged with a second maintenance box door.
5. The fresh air filtering device for the clean room according to claim 1, wherein: the temperature adjusting mechanism (4) comprises a temperature adjusting box (401), a gas tank (402), heating rods (403) arranged on two sides of the gas tank (402), a fan (404), a temperature sensor (405) arranged in the gas tank (402) and an air pressure sensor (406), wherein the air pressure sensor (406) and the temperature sensor (405) are respectively connected with the inner walls of the upper side and the lower side of the gas tank (402), the surfaces of the two sides of the gas tank (402) are provided with a plurality of heat conducting sheets, the fan (404) is arranged on the left side in the temperature adjusting box (401), the fan (404) is connected with a controller (5), the upper part of the temperature adjusting box (401) is connected with a plurality of fresh air pipes (10), a fresh air outlet is communicated with the gas tank (402), the upper side of each fresh air pipe (10) is connected with a first electromagnetic valve, and the first electromagnetic valve is connected with the controller (5);
and a third maintenance box door is hinged to one side of the temperature adjusting box (401).
6. The fresh air filtering device for the clean room according to claim 5, wherein: the upper portion of the temperature adjusting box (401) is communicated with a circulation pipe (11), the circulation pipe (11) is located on the left side of the gas tank (402), a first one-way valve is connected to the circulation pipe (11), a pressurizing pipe (12) is arranged on the upper side of the temperature adjusting box (401), two ends of the pressurizing pipe (12) are communicated with the temperature adjusting box (401) and the primary purification box (101) respectively, a second one-way valve (13) is connected to the pressurizing pipe (12), and the first one-way valve and the second one-way valve (13) are connected with the controller (5) respectively.
7. The fresh air filtering device for the clean room according to claim 1, wherein: and a second air pressure sensor (14) and a third air pressure sensor (15) are respectively arranged in the second air inlet pipe (6) and the third air inlet pipe (8), and the second air pressure sensor (14) and the third air pressure sensor (15) are respectively connected with the controller (5).
8. The use method of the fresh air filtering device for the clean room is characterized by comprising the following steps of: the method comprises the following specific steps:
s1, connecting an air source;
s2, primary filtration is carried out;
s3, settling dust;
s4, secondary filtration;
s5, adjusting the temperature;
and S6, conveying fresh air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111563636.3A CN114322125A (en) | 2021-12-20 | 2021-12-20 | Fresh air filtering device for clean room and use method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111563636.3A CN114322125A (en) | 2021-12-20 | 2021-12-20 | Fresh air filtering device for clean room and use method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114322125A true CN114322125A (en) | 2022-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111563636.3A Pending CN114322125A (en) | 2021-12-20 | 2021-12-20 | Fresh air filtering device for clean room and use method thereof |
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| CN (1) | CN114322125A (en) |
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| CN112254251A (en) * | 2020-11-04 | 2021-01-22 | 厦门狄耐克环境智能科技有限公司 | Air pipe maintenance and sterilization device and method for fresh air system |
| CN213810924U (en) * | 2020-11-26 | 2021-07-27 | 苏州天净沙自动化科技有限公司 | Air purification device for clean room of pharmaceutical factory |
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2021
- 2021-12-20 CN CN202111563636.3A patent/CN114322125A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204574311U (en) * | 2015-04-13 | 2015-08-19 | 石家庄奥祥医药工程有限公司 | A kind of dust proof workshop forced draft system |
| CN109331575A (en) * | 2018-10-23 | 2019-02-15 | 上海航天设备制造总厂有限公司 | A kind of smoke dust filter and its control method for selective laser melting unit |
| CN209801675U (en) * | 2019-04-13 | 2019-12-17 | 广州奥揽达节能科技有限公司 | combined air conditioner for year round refrigeration direct evaporation clean room |
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| CN112254251A (en) * | 2020-11-04 | 2021-01-22 | 厦门狄耐克环境智能科技有限公司 | Air pipe maintenance and sterilization device and method for fresh air system |
| CN213810924U (en) * | 2020-11-26 | 2021-07-27 | 苏州天净沙自动化科技有限公司 | Air purification device for clean room of pharmaceutical factory |
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Address after: 236600 north of Yingyang East Road and 68 meters west of Chuangye Road, Taihe County Economic Development Zone, Fuyang City, Anhui Province Applicant after: Anhui Tongyi Purification Technology Co.,Ltd. Address before: 246001 Cihe Road, Taihe County Economic Development Zone, Anqing City, Anhui Province Applicant before: Anhui Tongyi Purification Technology Co.,Ltd. |
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