CN112268336A - Personal protection ventilation system and ventilation method for efficiently sending and exhausting air in dense space - Google Patents
Personal protection ventilation system and ventilation method for efficiently sending and exhausting air in dense space Download PDFInfo
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- CN112268336A CN112268336A CN202010921246.8A CN202010921246A CN112268336A CN 112268336 A CN112268336 A CN 112268336A CN 202010921246 A CN202010921246 A CN 202010921246A CN 112268336 A CN112268336 A CN 112268336A
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- air
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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
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/10—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with air supply, or exhaust, through perforated wall, floor or ceiling
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The invention relates to a personal protection ventilation system and a ventilation method for efficiently sending and exhausting air in a dense space of personnel, wherein the ventilation system comprises an air supply outlet, an air exhaust outlet and an air treatment system; the arrangement position of the air supply outlet is in accordance with one of the following conditions: the air supply outlet is arranged on the floor in front of the seat; or the air supply outlet is arranged on the seat armrest; or the air supply outlet is arranged at the rear side of the front row of seat backs; the air outlet is arranged at the front side of the backrest corresponding to the position above the shoulders of the human body; the air treatment system comprises an air exhaust pipeline and an air supply pipeline, an air supply outlet is connected with the air supply pipeline and is connected with the air exhaust pipeline, and air flow sent by the air supply outlet enters the air exhaust outlet to form an air flow channel after passing through the seat area. The invention can establish a microenvironment which is particularly suitable for individuals and can efficiently send air back in the space, shorten the airflow channel of fresh air in the space, quickly discharge the polluted gas exhaled by the personnel out of the space, and reduce the cross infection phenomenon among the personnel.
Description
Technical Field
The invention belongs to the technical field of air quality control in a dense space environment, and particularly relates to a personal protection ventilation system and a ventilation method for efficiently sending and exhausting air in a dense space.
Background
Air conditioning systems provide a comfortable human-occupied environment for people, but for large spaces central air conditioning systems are commonly used to centrally treat the air and mixed ventilation is used to control indoor air temperature and velocity. The mixed ventilation air-conditioning system used in the public places with dense personnel achieves the purpose of diluting the concentration of indoor pollutants through the mixing action of air supply. Although simple and convenient, the air supply form cannot form an efficient air flow channel for individuals in the space, and also brings the risk of local pollutants spreading to the whole space.
The existing personalized air supply system is provided with an air supply opening near a human body, although the personalized ventilation provides regulated fresh air for personnel, about 65% of indoor air is still provided by central ventilation, so that the air flow is influenced with the surrounding human body in the flowing process, an air outlet is far away from the human body, the air carrying infectious viruses and germs cannot be timely discharged, the infectious viruses spread in a large area in the space, and the risk of cross infection is increased.
Disclosure of Invention
The invention aims to provide a personal protection ventilation system and a ventilation method for efficiently sending and exhausting air in a dense space of people, which can establish a microenvironment for efficiently sending the air back to the people in the space, shorten an airflow channel of fresh air in the space, quickly discharge polluted air exhaled by the people out of the space and reduce the cross infection phenomenon among the people.
The invention provides a personal protection ventilation system for efficiently sending and exhausting air in a dense space of people, which comprises an air supply outlet, an air exhaust outlet and an air processing system;
the arrangement position of the air supply outlet is in accordance with one of the following conditions: the air supply outlet is arranged on the floor in front of the seat; or the air supply outlet is arranged on a seat armrest; or the air supply outlet is arranged at the rear side of the front row seat backrest;
the air outlet is arranged at the front side of the backrest and corresponds to the position above the shoulders of the human body;
the air treatment system comprises an exhaust pipeline and an air supply pipeline, the air supply outlet is connected with the air supply pipeline, the air exhaust outlet is connected with the exhaust pipeline, and air flow sent by the air supply outlet enters the air exhaust outlet to form an air flow channel after passing through the seat area.
The air treatment system further comprises an air valve, an air purification treatment unit, a fan and an air return pipeline, the exhaust pipeline is connected with the air supply pipeline through the air return pipeline, the air valve is installed on the air return pipeline, the air purification treatment unit and the fan are installed on the air supply pipeline, and the air purification treatment unit is located at the downstream of the air return pipeline.
And the air supply pipeline is connected with a fresh air system of the air conditioner.
The air handling system is disposed below the floor below the seat.
The technical scheme adopted by the invention for solving the technical problems is to provide a personal protection ventilation method for efficiently sending and exhausting air in a dense space of personnel, which uses the personal protection ventilation system for efficiently sending and exhausting air in the dense space of personnel as claimed in claim 1;
in a normal period, the air flow gathered into the exhaust pipeline through the exhaust outlet, part of the return air is gathered with the fresh air in the air supply pipeline, and the return air is subjected to air purification treatment and then is circularly supplied;
in an emergency period, the airflow collected into the exhaust pipeline through the exhaust outlet is completely exhausted, and the air enters the full fresh air in the air supply pipeline and is supplied with air after being subjected to air purification treatment.
Advantageous effects
Firstly, through the combination of personalized air supply and personalized air exhaust, the airflow channel of indoor fresh air is shortened, and the risk of infection of the fresh air in the flowing process is reduced.
Secondly, the air exit position is very close to personnel, and the pollutant of personnel's exhalation on the seat can obtain discharging fast, can effectively avoid the pollutant to take place the diffusion in the space.
Thirdly, a separate air return microenvironment used by each person is established in the space, so that the occurrence of cross infection of the persons in the space is effectively reduced, and the improvement of the air quality of a breathing zone is facilitated.
Drawings
Fig. 1 is a schematic front view of a first air flow channel formed by the personalized air supply and exhaust system of the invention.
Fig. 2 is a schematic side view of a first air flow channel formed by the personalized air supply and exhaust system of the invention.
Fig. 3 is a schematic front view of a second air flow channel formed by the personalized air supply and exhaust system of the invention.
Fig. 4 is a side view of a second air flow channel formed by the personalized air supply and exhaust system of the invention.
Fig. 5 is a schematic front view of a third air flow channel formed by the personalized air supply and exhaust system of the invention.
Fig. 6 is a side view of a third air flow channel formed by the personalized air delivery and exhaust system of the invention.
Fig. 7 is a front view schematically showing the arrangement of the air supply duct and the air exhaust duct under the seat.
Fig. 8 is a side view schematically showing the layout of the air supply duct and the air exhaust duct under the seat.
Fig. 9 is a partial schematic view of the layout of the air supply duct and the air exhaust duct under the seat.
Fig. 10 is a schematic diagram of the return air recirculation state of the air handling system.
FIG. 11 is a schematic diagram of the air handling system in a fresh air condition.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
A personal protection ventilation system for efficiently sending and exhausting air in a dense space of people comprises an air supply outlet 2, an air exhaust outlet 1 and an air treatment system. The air outlet 1 is arranged at the front side of the seat back 10 corresponding to the position above the shoulders of the human body, and the air outlet 2 is arranged at one of the following A, B, C positions, so that the air flow sent by the air outlet 2 enters the air outlet 1 to form an air flow channel after passing through the seat area:
A. the air blowing port 2 is provided on a floor 8 in front of the seat as shown in fig. 1 and 2. Fresh air sent out from the air supply opening 2 is conveyed to a person breathing area under the air supply effect, air after breathing and heat dissipation of the person is discharged rapidly through the air outlet 1, and the possibility of indoor diffusion of pollutants exhaled by the person is reduced.
B. The supply air outlet 2 is provided upward on the seat armrest 9 as shown in fig. 3 and 4. Under the entrainment effect of the human body thermal plume, fresh air is delivered to a personnel area and then discharged to form an efficient airflow channel, so that the airflow efficiently flows through the human body, and the time of ineffective flow of the airflow in a room is shortened.
C. The air blowing port 2 is provided on the rear side of the front seat back 10 as shown in fig. 5 and 6. Under the action of the personalized independent air supply and exhaust system, the probability of cross infection of adjacent personnel is avoided, and the risk of virus and pollutant transmission along with air is reduced.
The air treatment system comprises an exhaust pipeline 3, an air supply pipeline 4, an air valve 5, an air purification treatment unit 6, a fan 7 and an air return pipeline 11.
As shown in fig. 7 and 8, the exhaust duct 3 and the air supply duct 4 are disposed below the floor 8 under the seat. The air supply port 2 is connected to the air supply duct 4, and the air discharge port 1 is connected to the air discharge duct 3, as shown in fig. 9. As shown in fig. 10 and 11, the exhaust duct 3 is connected to the supply duct 4 through a return duct 11, the air valve 5 is mounted on the return duct 11, the air cleaning unit 6 and the blower 7 are mounted on the supply duct 4, and the air cleaning unit 6 is located downstream of the return duct 11. Meanwhile, the air supply pipeline 4 is connected with a fresh air system of the central air conditioner, and fresh air can be supplied into the air supply pipeline 4.
A personal protection ventilation method for efficiently sending and exhausting air in a dense space of people uses the personal protection ventilation system for efficiently sending and exhausting air in the dense space of people. In a normal period, as shown in fig. 10, the air valve 5 is opened, a part of the exhaust air is exhausted out of the room through the exhaust duct 3, the other part of the exhaust air enters the air purification processing unit 6 through the air valve 5 for processing, and the air is supplied again through the fan 7, so that the effect of controlling the microenvironment is achieved, and the exhaust air processing capacity is determined by the opening degree of the air valve 5; in a transition season or an emergency period (for example, an outbreak period of influenza, virus, and the like), as shown in fig. 11, the air valve 5 is closed, the air flow collected into the air exhaust pipeline 3 through the air outlet 1 is completely exhausted without returning air, the central air conditioner uses a fresh air system, the air treatment system does not purify and treat the exhausted air, and the air flowing through the human body is completely exhausted to the outside.
Based on the current situation that the distance between people in a building is short and the design protection of the existing ventilation air-conditioning system is insufficient, in order to ensure the indoor air quality, the invention provides the local personalized ventilation system which can prevent the air path infectious diseases and has a controllable dispersion source. The air supply outlet and the air exhaust outlet are arranged near personnel for personalized ventilation, have considerable energy-saving potential, can be applied to personnel intensive places such as theaters, movie cities, large-scale offices, public transport means and the like, and are realized by modifying an air conditioning system and seats.
Claims (5)
1. The utility model provides a personnel intensive space high efficiency send personal protection ventilation system of airing exhaust, includes supply-air outlet (2), air exit (1) and air handling system, its characterized in that:
the arrangement position of the air supply outlet (2) is in accordance with one of the following conditions: the air supply outlet (2) is arranged on a floor (8) in front of the seat; or the air supply outlet (2) is arranged on a seat armrest (9); or the air supply outlet (2) is arranged at the rear side of the front row seat backrest (10);
the air outlet (1) is arranged at the front side of the seat back (10) corresponding to the position above the shoulders of a human body;
the air treatment system comprises an exhaust duct (3) and an air supply duct (4), wherein an air supply outlet (2) is connected with the air supply duct (4), the air exhaust outlet (1) is connected with the exhaust duct (3), and air flow sent into the air supply outlet (2) enters the air exhaust outlet (1) to form an air flow channel after passing through a seat area.
2. The personal protection ventilation system for high efficiency ventilating air for personnel dense space according to claim 1, wherein: the air treatment system further comprises an air valve (5), an air purification treatment unit (6), a fan (7) and a return air pipeline (11), the exhaust air pipeline (3) is connected with the air supply pipeline (4) through the return air pipeline (11), the air valve (5) is installed on the return air pipeline (11), the air purification treatment unit (6) and the fan (7) are installed on the air supply pipeline (4), and the air purification treatment unit (6) is located at the downstream of the return air pipeline (11).
3. The personal protection ventilation system for high-efficiency ventilating of a person-dense space according to claim 1 or 2, wherein: and the air supply pipeline (4) is connected with a fresh air system of the air conditioner.
4. The personal protection ventilation system for high-efficiency ventilating of a person-dense space according to claim 1 or 2, wherein: the air handling system is disposed below a floor (8) below the seat.
5. A personal protection ventilation method for efficiently sending and exhausting air in a dense space of people is characterized in that:
a personal protection ventilation system using the intensive personnel space efficient ventilation of air according to claim 1;
in a normal period, the air flow converged into the air exhaust pipeline (3) through the air exhaust port (1), part of the return air is converged into the air supply pipeline (4) and is supplied with fresh air in a circulating manner after being subjected to air purification treatment;
in transition seasons or in extraordinary periods, all air flows gathered in the exhaust pipeline (3) through the exhaust outlet (1) are exhausted, and all fresh air enters the air supply pipeline and is supplied after air purification treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921246.8A CN112268336A (en) | 2020-09-04 | 2020-09-04 | Personal protection ventilation system and ventilation method for efficiently sending and exhausting air in dense space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010921246.8A CN112268336A (en) | 2020-09-04 | 2020-09-04 | Personal protection ventilation system and ventilation method for efficiently sending and exhausting air in dense space |
Publications (1)
| Publication Number | Publication Date |
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| CN112268336A true CN112268336A (en) | 2021-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010921246.8A Pending CN112268336A (en) | 2020-09-04 | 2020-09-04 | Personal protection ventilation system and ventilation method for efficiently sending and exhausting air in dense space |
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| CN (1) | CN112268336A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114719382A (en) * | 2022-04-18 | 2022-07-08 | 重庆大学 | Epidemic prevention emergency air return and air return sterilizing device and epidemic prevention emergency system |
| CN115042976A (en) * | 2022-03-16 | 2022-09-13 | 南京航空航天大学 | Human body microenvironment control air conditioning system of civil passenger plane |
| CN115164276A (en) * | 2022-07-15 | 2022-10-11 | 上海外高桥造船有限公司 | Theatre air conditioning system and passenger liner |
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| JP2004340395A (en) * | 2003-05-13 | 2004-12-02 | Airtech Japan Ltd | Sterilizing and dust collecting device for lobby chair |
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| CN102960971A (en) * | 2012-03-02 | 2013-03-13 | 大连理工大学 | Personalized air supply device embedded in seat armrests |
| CN205579772U (en) * | 2016-02-26 | 2016-09-14 | 大金工业株式会社 | Air purification system |
| CN108248869A (en) * | 2018-02-06 | 2018-07-06 | 天津大学 | A kind of displacement supply air system suitable for seating plane |
| CN111365836A (en) * | 2020-03-17 | 2020-07-03 | 武汉东昌仓贮技术有限公司 | Mechanical elimination method for air conditioner air port arrangement and pipeline internal germs |
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2020
- 2020-09-04 CN CN202010921246.8A patent/CN112268336A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004340395A (en) * | 2003-05-13 | 2004-12-02 | Airtech Japan Ltd | Sterilizing and dust collecting device for lobby chair |
| CN1563822A (en) * | 2003-05-19 | 2005-01-12 | 孙世钧 | Health site having directionall regulated airflow |
| CN102960971A (en) * | 2012-03-02 | 2013-03-13 | 大连理工大学 | Personalized air supply device embedded in seat armrests |
| CN205579772U (en) * | 2016-02-26 | 2016-09-14 | 大金工业株式会社 | Air purification system |
| CN108248869A (en) * | 2018-02-06 | 2018-07-06 | 天津大学 | A kind of displacement supply air system suitable for seating plane |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115042976A (en) * | 2022-03-16 | 2022-09-13 | 南京航空航天大学 | Human body microenvironment control air conditioning system of civil passenger plane |
| CN115042976B (en) * | 2022-03-16 | 2024-03-29 | 南京航空航天大学 | Human body microenvironment control air conditioning system of civil passenger plane |
| CN114719382A (en) * | 2022-04-18 | 2022-07-08 | 重庆大学 | Epidemic prevention emergency air return and air return sterilizing device and epidemic prevention emergency system |
| CN115164276A (en) * | 2022-07-15 | 2022-10-11 | 上海外高桥造船有限公司 | Theatre air conditioning system and passenger liner |
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Application publication date: 20210126 |