CN115164371A - Air volume control module, ventilation system and biological safety laboratory - Google Patents
Air volume control module, ventilation system and biological safety laboratory Download PDFInfo
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- CN115164371A CN115164371A CN202210893990.0A CN202210893990A CN115164371A CN 115164371 A CN115164371 A CN 115164371A CN 202210893990 A CN202210893990 A CN 202210893990A CN 115164371 A CN115164371 A CN 115164371A
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- air
- pipe section
- sealing cover
- control module
- volume control
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/007—Ventilation with forced flow
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Ventilation (AREA)
Abstract
The invention provides an air volume control module, a ventilation system and a biological safety laboratory, wherein the air volume control module comprises a first pipe section and an electric air valve, the electric air valve comprises an air valve driving piece and a valve plate, the valve plate is rotatably arranged in the first pipe section, and the air valve driving piece drives the valve plate to rotate; the valve plate is hinged on the first pipe section through a first shaft end and a second shaft end; a first shaft hole rotationally matched with the first shaft end and a second shaft hole rotationally matched with the second shaft end are formed in the peripheral wall of the first pipe section, the second shaft hole penetrates through the peripheral wall of the first pipe section along the radial direction, and a driving shaft of the air valve driving piece is connected with the second shaft end; the outer part of the peripheral wall of the first pipe section is also provided with a first sealing cover, the first sealing cover covers the second shaft hole, the air valve driving part is positioned in the first sealing cover, and the first sealing cover is connected with the outer surface of the peripheral wall of the first pipe section in a sealing mode. The air volume control module can ensure the air tightness of a ventilation system, and further ensure the detection precision and the system control precision of the air velocity sensor.
Description
Technical Field
The invention relates to the field of laboratories, in particular to an air volume control module, a ventilation system and a biological safety laboratory.
Background
The key of the biological safety laboratory lies in biological safety, the internal structure of the biological safety laboratory is also suitable for the mobile biological safety laboratory, but due to the mobile characteristic of the mobile biological safety laboratory, the whole layout of the vehicle body and the vehicle body is compact, and the structure is compact. The ventilation system of the mobile biological safety laboratory is used for controlling indoor environmental parameters, and simultaneously ensuring that the indoor environment and the outdoor environment and the environment between rooms are effectively isolated by negative pressure and negative pressure gradient, so that the absolute safety of the indoor environment and the outdoor environment is ensured.
Under the condition that the layout of a vehicle body and the vehicle body of a mobile biological safety laboratory is tight, in order to ensure that the control of a ventilation system is not influenced by the layout, under the condition that the installation requirements of all parts of the ventilation system are met, the good arrangement and layout of the ventilation system are key points and difficulties of the mobile biological safety laboratory, and the existing air valve can influence the detection result and further influence a control system due to unreasonable position setting. In addition, in the existing ventilation system, the air tightness of the ventilation system can greatly affect the detection result, and the air valve driving piece is usually arranged outside the air pipe, so that the air tightness of the connecting position of the driving shaft of the air valve driving piece and the air pipe is poor, the detection result is affected, and the control system is further affected.
Disclosure of Invention
The first purpose of the invention is to provide an air volume control module which can ensure the air tightness of a ventilation system, and further ensure the detection precision of an air velocity sensor and the control precision of a control system.
A second object of the present invention is to provide a ventilation system having the above air volume control module.
It is a third object of the present invention to provide a biosafety laboratory having the above-described ventilation system.
In order to achieve the first object, the invention provides an air volume control module, which comprises a first pipe section and an electric air valve, wherein the electric air valve is arranged on the first pipe section; the electric air valve comprises an air valve driving piece and a valve plate, the valve plate is rotatably arranged in the first pipe section, and the air valve driving piece drives the valve plate to rotate; the valve plate is provided with a first shaft end and a second shaft end which are opposite along the radial direction, and the valve plate is hinged on the first pipe section through the first shaft end and the second shaft end; a first shaft hole and a second shaft hole are formed in the peripheral wall of the first pipe section, the first shaft end is in rotating fit with the first shaft hole, and the second shaft end is in rotating fit with the second shaft hole; the second shaft hole penetrates through the peripheral wall of the first pipe section along the radial direction, the air valve driving piece is positioned outside the first pipe section, and a driving shaft of the air valve driving piece is connected with the second shaft end; the outer part of the peripheral wall of the first pipe section is also provided with a first sealing cover, the first sealing cover covers the second shaft hole, the air valve driving piece is positioned in the first sealing cover, and the first sealing cover is connected with the outer surface of the peripheral wall of the first pipe section in a sealing mode.
It can be seen by above-mentioned scheme that through setting up first sealed lid, set up the blast gate driving piece in relative inclosed space, a small amount of air current gets into first sealed lid after second axle end and the position of second axle end hole complex flow, consequently the air current also can not leak to guarantee the leakproofness of pipeline in second axle hole position, prevent that the air current from leaking the measuring result that influences wind speed sensor in the first pipeline section.
Preferably, the first shaft hole is a blind hole.
It can be seen that the first axial bore is designed as a blind bore, which ensures the gas tightness of the first pipe section.
Preferably, the first shaft hole is a through hole and radially penetrates through the peripheral wall of the first pipe section, and a second sealing cover is arranged outside the peripheral wall of the first pipe section and covers the first shaft hole. The second sealing cover is connected with the outer surface of the peripheral wall of the first pipe section in a sealing mode.
Therefore, the second sealing cover is arranged, a small amount of air flow flows out from the position where the first shaft end is matched with the first shaft hole and then enters the second sealing cover, and the air flow cannot leak due to the fact that the second sealing cover is a closed space, so that the sealing performance of the pipeline at the position of the first shaft hole is guaranteed due to the arrangement of the second sealing cover, and the air flow is prevented from leaking to influence a detection result. Meanwhile, the first shaft end can be properly lengthened, so that the stability of connection between the valve plate and the pipeline is ensured.
The electric air valve further comprises an actuator and a third sealing cover, the actuator is electrically connected with the air valve driving piece through a connecting line, the actuator is located in the third sealing cover, the third sealing cover is connected with the first sealing cover, and the first sealing cover and/or the third sealing cover are/is provided with a line passing hole for the connecting line to pass through.
Therefore, the actuator and the air valve driving piece are respectively arranged in the two relatively closed spaces, the size of the space for placing the air valve driving piece can be reduced, and the situation that when the actuator and the air valve driving piece are located in the same sealed space, the space is too large, and more air flows flow into the space to influence the detection result of the air speed sensor is prevented.
According to a preferable scheme, the air volume control module further comprises a first air speed sensor, the first air speed sensor is located in the first sealing cover, and the detection end of the first air speed sensor is located in the first pipe section and arranged on the windward side of the valve plate.
Therefore, through reasonable arrangement of the valve plate, the condition that the airflow passing through the detection end of the first air speed sensor on the valve plate is in a laminar flow state with uniform flow speed is guaranteed, and the accuracy of the detection result of the first air speed sensor is further guaranteed.
The further scheme is that the first wind speed sensor is a pitot type wind speed sensor.
Further, the minimum distance between the detection end of the Pitot tube type wind speed sensor and the inner surface of the peripheral wall of the first pipe section is 1/3 of the inner diameter of the first pipe section.
In order to achieve the second objective, the present invention provides a ventilation system, which includes the above-mentioned air volume control module.
To achieve the third objective, the present invention provides a biosafety laboratory comprising the ventilation system.
According to the scheme, as the requirement of the biological safety laboratory on the ventilation system is higher and the space for arranging the ventilation system is compact, the accuracy of the detection result of the air speed sensor is ensured by reasonably setting the position of the air speed sensor in the pipeline and designing the air tightness of the air volume control module, so that the accurate control of the control system is ensured.
The biological safety laboratory also comprises a room and an air supply equipment room which are mutually independent, wherein an air conditioner is arranged in the air supply equipment room, and the air conditioner supplies air to the room through a ventilation system.
Drawings
FIG. 1 is a layout of an embodiment of the biosafety laboratory of the present invention.
Fig. 2 is a layout of a ventilation system in an embodiment of the biosafety laboratory of the present invention.
Fig. 3 is a layout of a ventilation system and various sensors in an embodiment of a biosafety laboratory of the present invention.
Fig. 4 is an enlarged view of fig. 2 at a.
Fig. 5 is a schematic structural diagram of an air volume control module in an embodiment of the biosafety laboratory.
Fig. 6 is a sectional view of an air volume control module according to an embodiment of the biosafety laboratory.
Fig. 7 is a schematic structural view of a third sealing cap in an embodiment of the biosafety laboratory according to the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
Referring to fig. 1 and 2, the bio-safety laboratory of the present embodiment is a mobile bio-safety laboratory. The biosafety laboratory comprises a ventilation system 10, and a dressing room 11, a shower room 12, a protective clothing changing room 13, a core work room 14, an air supply equipment room 15 and an air exhaust equipment room 16 which are arranged independently of each other, wherein the ventilation system 10 is installed on the top of each room and equipment room.
An air conditioner 151 and two fans 152 are installed in the air supply equipment room 15, the air conditioner 151 supplies air to rooms through a ventilation system 10, an air discharge device 161 and two fans 162 are installed in the air discharge equipment room 16, and the air discharge device 161 discharges air to each room through the ventilation system 10.
Referring to fig. 2 to 4, the ventilation system 10 includes a pipeline 2, a first wind speed sensor 7 (shown in fig. 6), an electric air valve 3, a sealing valve 4, a second wind speed sensor 5, and the like, the pipeline 2 includes a second pipe section 21 and a first pipe section 22 connected in sequence along the air supply direction, the second pipe section 21 and the first pipe section 22 are both straight pipes, the extending direction of the second pipe section 21 is perpendicular to the extending direction of the first pipe section 22, the second pipe section 21 has a second pipe air inlet end 211 and a second pipe air outlet end 212, the first pipe section 22 has a first pipe air inlet end 221 and a first pipe air outlet end 222, and the first pipe air inlet end 221 is connected with the second pipe air outlet end 212. When the pipeline 2 is used as an air supply pipe, the air inlet end 211 of the second pipe on the pipeline 2 is connected with the air conditioner 151, the air outlet end 222 of the first pipe is communicated with the air inlet of the corresponding room, the second pipe section 21 is an air supply main pipe, and the first pipe section 22 is an air supply branch pipe.
First air velocity transducer 7 and second air velocity transducer 5 are pitot tube formula air velocity transducer, and air velocity transducer's sense terminal is pitot tube's full pressure hole 6 (shown in fig. 6), and full pressure hole 6 sets up the windward side 320 and the windward setting at electric air valve 3 valve plate 32, and pitot tube formula air velocity transducer still includes the probe, and the probe perpendicular to windward direction, pitot tube formula air velocity transducer are current structure, and it is unnecessary to describe in detail here.
The minimum distance between the detection end of the Pitot tube type wind speed sensor and the inner surface of the peripheral wall of the corresponding pipe section is 1/3 of the inner diameter of the corresponding pipe section. The first wind speed sensor 7 and the electric air valve 3 are both arranged on the first pipe section 22, the second wind speed sensor 5 is arranged on the second pipe section 21, and the second wind speed sensor 5 is used for mutually verifying the wind quantity fed back by sensing of the first wind speed sensor 7 arranged on the first electric air valve 3.
The first pipe section 22, the first wind speed sensor 7 and the electric air valve 3 form an air volume control module 20, the number of the air volume control modules 20 is four, and the four first pipe sections 22 of the four air volume control modules are all located at the second pipe air outlet end 212 and are arranged in parallel along the extending direction of the second pipe section 21. The first duct outlet ends 222 of the four first duct sections 22 are respectively connected with corresponding air inlets of the changing room 11, the shower room 12, the protection suit changing room 13 and the core work room 14 (i.e. laboratory).
Referring to fig. 5 to 7, the electric air valve 3 includes an air valve driving member 31, a valve plate 32, an actuator 33, a second sealing cover 34, a first sealing cover 35, and a third sealing cover 36. Each edge of the third sealing cover 36 is sealed with a sealing strip 361. The valve plate 32 and the detection end of the first wind speed sensor 7 are both positioned in the first pipe section 22, the detection end of the first wind speed sensor 7 is positioned on the valve plate 32, and the air valve driving part 31 drives the valve plate 32 to rotate so as to control the air volume flowing through the first pipe section 22. The valve plate 32 divides the first pipe section 22 into a second pipe wind incoming section 223 and a second pipe wind outgoing section 224 which are arranged along the extending direction of the first pipe section 22, and the minimum length of the second pipe wind incoming section 223 is 4 to 6 times of the inner diameter of the first pipe section 22.
As shown in fig. 2 and 4, in the present embodiment, the inside diameters of the pipes 2 for blowing air to the dressing room 11, the shower room 12, and the protective clothing changing room 13 are equal and all d1, and the minimum length l1 of the second duct incoming section 223 of the pipe 2 is 4 to 6 times the inside diameter d1 of the first duct section 22. Because the air volume requirement of the core workshop 14 is large, the inner diameter of the pipeline 2 for supplying air to the core workshop 14 is D1, D1 is larger than D1, and the minimum length L1 of the second pipe air incoming section 223 of the pipeline 2 is 4 times to 6 times of the inner diameter D1 of the first pipe section 22. And the pipeline 2 for supplying air to the core workshop 14 and the pipeline 2 for exhausting air outwards from the core workshop 14 are both provided with a closed valve 4, and the closed valve 4 is installed closer to a laboratory than the electric air valve 3 in order to ensure the air tightness of the core workshop 14 during disinfection and ventilation.
The second wind speed sensor 5 is located in the middle of the extending direction of the second pipe section 21, the detecting end of the second wind speed sensor 5 divides the second pipe section 21 into a first pipe wind incoming section 213 and a first pipe wind outgoing section 214 which are arranged along the extending direction of the second pipe section 21, the minimum length of the first pipe wind incoming section 213 is 6 times of the inner diameter of the second pipe section 21, and the minimum length of the first pipe wind outgoing section 214 is 3 times of the inner diameter of the second pipe section 21.
The valve plate 32 is provided with a first axial end 321 and a second axial end 322 which are diametrically opposed, the valve plate 32 being hinged to the first pipe section 22 by means of the first axial end 321 and the second axial end 322. The peripheral wall of the first pipe section 22 is provided with a first shaft hole 225 and a second shaft hole 226, the first shaft end 321 is rotatably matched with the first shaft hole 225, the second shaft end 322 is rotatably matched with the second shaft hole 226, and the driving shaft of the air valve driving member 31 is connected with the second shaft end 322.
The first shaft hole 225 and the second shaft hole 226 are through holes penetrating through the peripheral wall of the first pipe section 22 in the radial direction, the second seal cover 34 and the first seal cover 35 are disposed outside the peripheral wall of the first pipe section 22, the second seal cover 34 covers the first shaft hole 225, the first seal cover 35 covers the second shaft hole 226, the air valve driving member 31 and the first air velocity sensor 7 are located inside the first seal cover 35, and the second seal cover 34 and the first seal cover 35 are connected with the outer surface of the peripheral wall of the first pipe section 22 in a sealing manner.
The actuator 33 is electrically connected with the air valve driving piece 31 through a connecting line, the actuator 33 is positioned in the third sealing cover 36, the third sealing cover 36 is connected with the first sealing cover 35, and the third sealing cover 36 and/or the first sealing cover 35 are/is provided with a line passing hole for the connecting line to pass through.
The pipeline 2 can also be applied to an exhaust pipe, at the moment, the pipeline 2 comprises an exhaust branch pipe 23 and an exhaust main pipe 24, a static pressure box is arranged between the exhaust branch pipe 23 and the exhaust main pipe, the wind of the exhaust branch pipe 23 is gathered by the static pressure box, flows uniformly and then flows to the exhaust main pipe 24, and finally is sent out after being driven by the fan 162. The exhaust branch pipe 23 can adopt the air volume control module 20 on the pipeline 2, the air inlet end 211 of the second pipe is communicated with the air outlet of each room, and the air outlet end of the first pipe section 22 is communicated with the plenum box. The inner diameters of the pipelines 2 exhausting air from the dressing room 11, the shower room 12 and the protective clothing changing room 13 are equal and d2, and the minimum length l2 of the second pipe air inlet section 223 of the pipeline 2 is 4 times to 6 times of the inner diameter d2 of the first pipe section 22. The inner diameter of the pipeline 2 exhausting outwards from the core workshop 14 is D2, and D2 is larger than D2, and the minimum length L2 of the second pipe incoming section 223 of the pipeline 2 is 4 times to 6 times of the inner diameter D2 of the first pipe section 22.
The main exhaust duct 24 is provided with a third air speed sensor 241, and the third air speed sensor and the first air speed sensor 7 at the electric air valve 3 on the branch exhaust duct 23 sense the feedback air volume for mutual verification. In order to further realize the sealing performance of the pipelines, the two adjacent pipelines or the pipelines and the parts are connected by full welding.
As shown in fig. 3, the biosafety laboratory further includes the following sensors: the air conditioning unit comprises a front-rear section differential pressure sensor 101 of an inner fan of an air conditioning unit, a front-rear section temperature and humidity sensor 102 of an evaporator, a front-rear section differential pressure sensor 103 of a filter section, a second air speed sensor 5 on an air supply main pipe 21, a third air speed sensor 241 on an air exhaust main pipe 24, a core workshop 14, a protective clothing replacement room 13, a shower room 12 and an air supply filter of a changing room 11, wherein a front differential pressure sensor 106, a differential pressure sensor 107, a differential pressure sensor 108 and a differential pressure sensor 109 are respectively arranged in front of and behind the air supply filter, a differential pressure sensor 1010, a differential pressure sensor 1011 and a differential pressure sensor 1012 are respectively arranged in front of and behind the core workshop 14, the protective clothing replacement room 13 and the air exhaust filter of the shower room 12, and the inner sensors of the core workshop 14 comprise an indoor and outdoor differential pressure sensor 1013, an indoor and outdoor differential pressure sensor 1014, an indoor and outdoor differential pressure sensor 1015, a carbon dioxide sensor 1016, a particle counting sensor 1017, a temperature and humidity sensor 1018 of the protective clothing replacement room, an indoor and outdoor differential pressure sensor 1019, a temperature and humidity sensor 1020, an indoor and outdoor differential pressure sensor 1021, a temperature and humidity sensor 1022 and humidity sensor 1023 and the indoor and the like. In order to ensure that the pressure difference sensed by the pressure difference sensor is slightly interfered and the test is accurate, the pressure difference sensor is used for testing the pressure difference between the inside and the outside of a room or the pressure difference between the front part and the back part of a test part, the temperature and humidity sensor is used for testing the temperature and the humidity of a room or a certain local part, the precision is high, and each air speed sensor is respectively used for testing the air speed of the air supply main pipe, the air supply branch pipe, the air exhaust main pipe 24 and the air exhaust branch pipe 23.
Therefore, as the requirement of the biological safety laboratory on the ventilation system is higher and the space for arranging the ventilation system is compact, the invention ensures that the airflow passing through the detection end of the first air speed sensor on the valve plate is in a laminar flow state with uniform flow velocity by reasonably setting the position of the air speed sensor in the pipeline, ensures the accuracy of the detection result of the air speed sensor and further ensures the accurate control of the control system. Meanwhile, the ventilation system is suitable for occasions with compact space, and the occupied space is reduced. In addition, through setting up first sealed lid, set up the blast gate driving piece in relative inclosed space, a small amount of air current gets into in the first sealed lid after the position outflow of second axle end and second axle end hole complex, consequently the air current also can not leak to guarantee the leakproofness of pipeline in second axle hole position, prevent that the air current from leaking the measuring result that influences wind speed sensor in the first pipeline section.
In addition, the included angle between the extending direction of the first pipe section and the extending direction of the second pipe section can also be an acute angle or an obtuse angle, and the like, and the first pipe section and the second pipe section can be in right-angle transition or arc transition. The number of the air volume control modules can also be one or more than two, the specific number depends on the number of the rooms, and the number and the arrangement mode of the rooms can be changed according to needs. The first shaft hole may also be a blind hole. The detection end of the first wind speed sensor can also be positioned in the first pipe section on the windward side of the valve plate and is arranged at an interval with the valve plate in the extending direction of the first pipe section instead of being arranged on the valve plate, and at the moment, the detection end of the first wind speed sensor divides the first pipe section into a second pipe wind inlet section and a second pipe wind outlet section which are arranged along the extending direction of the first pipe section. The first shaft end and the second shaft end can be a rotating shaft passing through one diameter of the valve plate or two bulges which are coaxial and protrude outwards from the outer edge of the valve plate along the radial direction. The above-described modifications also achieve the object of the present invention.
Finally, it should be emphasized that the above-described preferred embodiments of the present invention are merely examples of implementations, and it should be understood that various changes and modifications may be made by those skilled in the art, and any changes, equivalents, improvements and the like, which fall within the spirit and principle of the present invention, should be included in the scope of the present invention.
Claims (10)
1. The air volume control module comprises a first pipe section and an electric air valve, and the electric air valve is arranged on the first pipe section;
the electric air valve comprises an air valve driving piece and a valve plate, the valve plate is rotatably arranged in the first pipe section, and the air valve driving piece drives the valve plate to rotate;
the method is characterized in that:
the valve plate is provided with a first shaft end and a second shaft end which are opposite in the radial direction, the valve plate is hinged to the first pipe section through the first shaft end and the second shaft end, a first shaft hole and a second shaft hole are formed in the peripheral wall of the first pipe section, the first shaft end is in rotating fit with the first shaft hole, and the second shaft end is in rotating fit with the second shaft hole;
the second shaft hole penetrates through the peripheral wall of the first pipe section along the radial direction, the air valve driving piece is positioned outside the first pipe section, and a driving shaft of the air valve driving piece is connected with the second shaft end;
the outer part of the peripheral wall of the first pipe section is also provided with a first sealing cover, the first sealing cover covers the second shaft hole, the air valve driving piece is positioned in the first sealing cover, and the first sealing cover is connected with the outer surface of the peripheral wall of the first pipe section in a sealing mode.
2. The air volume control module according to claim 1, characterized in that:
the first shaft hole is a blind hole.
3. A wind volume control module according to claim 1, wherein:
the first shaft hole is a through hole and penetrates through the peripheral wall of the first pipe section along the radial direction, a second sealing cover is arranged outside the peripheral wall of the first pipe section, the second sealing cover covers the first shaft hole, and the second sealing cover is connected with the outer surface of the peripheral wall of the first pipe section in a sealing mode.
4. The air volume control module according to any one of claims 1 to 3, wherein:
the electric air valve further comprises an actuator and a third sealing cover, the actuator is electrically connected with the air valve driving piece through a connecting line, the actuator is located in the third sealing cover, the third sealing cover is connected with the first sealing cover, and the first sealing cover and/or the third sealing cover are/is provided with a line passing hole through which the connecting line passes.
5. The air volume control module according to any one of claims 1 to 3, characterized in that:
the air volume control module further comprises a first air speed sensor, the first air speed sensor is located in the first sealing cover, and the detection end of the first air speed sensor is located in the first pipe section and arranged on the windward side of the valve plate.
6. The air volume control module of claim 5, wherein:
the first wind speed sensor is a pitot tube type wind speed sensor.
7. The air volume control module according to claim 6, characterized in that:
the minimum distance between the detection end of the Pitot tube type wind speed sensor and the inner surface of the peripheral wall of the first pipe section is 1/3 of the inner diameter of the first pipe section.
8. The ventilation system, characterized by comprising the air volume control module as claimed in any one of claims 1 to 7.
9. A biosafety laboratory comprising the ventilation system of claim 8.
10. The biosafety laboratory according to claim 9, characterized in that:
the biological safety laboratory also comprises a room and an air supply equipment room which are arranged independently, wherein an air conditioner is arranged in the air supply equipment room, and the air conditioner supplies air to the room through the ventilation system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210893990.0A CN115164371A (en) | 2022-07-27 | 2022-07-27 | Air volume control module, ventilation system and biological safety laboratory |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210893990.0A CN115164371A (en) | 2022-07-27 | 2022-07-27 | Air volume control module, ventilation system and biological safety laboratory |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115164371A true CN115164371A (en) | 2022-10-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210893990.0A Pending CN115164371A (en) | 2022-07-27 | 2022-07-27 | Air volume control module, ventilation system and biological safety laboratory |
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| Country | Link |
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| CN (1) | CN115164371A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520207A (en) * | 2011-12-19 | 2012-06-27 | 上海理工大学 | Pitot tube flow speed testing device capable of being positioned accurately and testing method thereof |
| CN206892124U (en) * | 2017-07-01 | 2018-01-16 | 苏梦 | Air velocity duct measurement apparatus |
| CN209960702U (en) * | 2019-04-24 | 2020-01-17 | 中国科学院武汉病毒研究所 | Biological safety laboratory exhaust system |
| CN213176828U (en) * | 2020-08-25 | 2021-05-11 | 深圳市中航大记股份有限公司 | Pressure-relief closed air valve and central air-conditioning ventilation system |
| CN213931313U (en) * | 2020-10-30 | 2021-08-10 | 山东博科建筑工程有限公司 | Ventilation system for combined mobile laboratory |
| CN217003341U (en) * | 2022-04-07 | 2022-07-19 | 巴科尔环境系统（佛山）有限公司 | Portable air quantity sensor and air valve with same |
-
2022
- 2022-07-27 CN CN202210893990.0A patent/CN115164371A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102520207A (en) * | 2011-12-19 | 2012-06-27 | 上海理工大学 | Pitot tube flow speed testing device capable of being positioned accurately and testing method thereof |
| CN206892124U (en) * | 2017-07-01 | 2018-01-16 | 苏梦 | Air velocity duct measurement apparatus |
| CN209960702U (en) * | 2019-04-24 | 2020-01-17 | 中国科学院武汉病毒研究所 | Biological safety laboratory exhaust system |
| CN213176828U (en) * | 2020-08-25 | 2021-05-11 | 深圳市中航大记股份有限公司 | Pressure-relief closed air valve and central air-conditioning ventilation system |
| CN213931313U (en) * | 2020-10-30 | 2021-08-10 | 山东博科建筑工程有限公司 | Ventilation system for combined mobile laboratory |
| CN217003341U (en) * | 2022-04-07 | 2022-07-19 | 巴科尔环境系统（佛山）有限公司 | Portable air quantity sensor and air valve with same |
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