CN111473456A - Fresh air system and using method - Google Patents
Fresh air system and using method Download PDFInfo
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- CN111473456A CN111473456A CN202010289328.5A CN202010289328A CN111473456A CN 111473456 A CN111473456 A CN 111473456A CN 202010289328 A CN202010289328 A CN 202010289328A CN 111473456 A CN111473456 A CN 111473456A
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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
- F24F7/08—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 separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
- F24F1/0038—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room in combination with simultaneous exhaustion of inside 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
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
The invention relates to the technical field of air purification, in particular to a fresh air system and a using method thereof.A high-medium efficiency filter, a blower, a humidifier and two parallel channels are arranged in a machine body; the two parallel channels comprise a fresh air channel and a return air channel, the fresh air channel comprises a coarse filter A and a surface air cooler A, and the return air channel comprises a coarse filter B and a surface air cooler B; the inlet of the fresh air channel is connected with a fresh air pipeline, and the inlet of the return air channel is connected with a return air pipeline; the fresh air pipeline is connected with the return air pipeline through a connecting pipeline. By arranging two channels of fresh air and return air, the invention greatly improves the indoor air quality during normal operation, and does not increase the heat and humidity load of a fresh air system; the full fresh air operation can be realized during epidemic disease, the capacity of purifying fresh air to dilute indoor carried germ particles is increased, and the risk of indoor air infection during epidemic disease is reduced; when the epidemic situation occurs in winter or summer, the heat and humidity processing capacity of fresh air can be increased, and the indoor temperature and humidity requirements can be met.
Description
Technical Field
The invention relates to the technical field of air purification, in particular to a fresh air system and a using method thereof.
Background
The WHO annual average concentration guideline for PM2.5 is 10ug/m 3; the control item of 'health building evaluation Standard' T/ASC 02-2016 in China requires that the annual average concentration of PM of indoor particulate matters is not higher than 25ug/m3 for 2.5. At present, the lowest annual average concentration in China is 4 times of the WHO guide value, 5 times of Beijing and 6 times of Jingjin Ji, and China still remains a serious disaster area polluted by PM 2.5.
At present, most areas of the comprehensive hospital outpatient service, the medical technology and the like in China adopt a mode of adding a fan coil and a fresh air system, the fresh air volume ventilation frequency is determined by calculation according to the current standard requirement and according to the 2 times/h, the return air inlet of the fan coil in each room can only adopt coarse-effect air filtration, the effect of filtering particles in the air is almost no, and if the return air inlet adopts a filter with middle-effect filtering performance, the large resistance can be generated, and the noise of the fan coil is increased. Fresh air volume ventilation for about 2 times/h has insufficient dilution effect on particulate matters of potential virus bacteria in indoor air, and when the concentration of PM2.5 in outdoor air is in a pollution standard exceeding state, the indoor PM2.5 can not meet the health requirement.
The office building adopts a fan coil and a fresh air conditioning system, fresh air volume is calculated and determined according to the current standard requirement and about 30m3/h.p, the number of times of fresh air volume ventilation is about 2 times/h, a fresh air handling unit mostly adopts coarse effect or coarse effect and medium effect filtration, the fan coil has almost no air purification capacity, and when the concentration of outdoor air PM2.5 exceeds standard and the pollution condition is mild or moderate, the concentration of indoor air PM2.5 is not in accordance with the requirement of the healthy building; and because the fresh air volume of the system can not be effectively increased, when the density of indoor personnel is increased, indoor CO can also appear2The PPM concentration exceeds the standard, and the health and the working state of personnel are influenced.
In view of the above problems, the following technical solutions have been proposed.
Disclosure of Invention
The invention provides a fresh air system and a using method thereof, aiming at overcoming the defects in the prior art. The invention can adapt to the use requirements of various building places using a fan coil and a fresh air system, and improves the indoor air quality by improving the total ventilation times of the purified air volume of the service space; meanwhile, by arranging two channels of fresh air and return air, the indoor air quality is greatly improved during normal operation, and the heat and humidity load of a fresh air system cannot be increased; the full fresh air operation can be realized during epidemic disease, the capacity of purifying fresh air to dilute indoor carried germ particles is increased, and the risk of indoor air infection during epidemic disease is reduced; when the epidemic situation occurs in winter or summer, the heat and humidity processing capacity of fresh air can be increased, and the indoor temperature and humidity requirements can be met.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a fresh air system comprises a machine body, wherein the inlet end of the machine body is connected with a fresh air pipeline and an air return pipeline, the outlet end of the machine body is connected with an air supply pipeline, and a high-efficiency and medium-efficiency filter, an air feeder, a humidifier and two parallel channels are sequentially arranged in the machine body from the outlet end to the inlet end; the two parallel channels comprise a fresh air channel and a return air channel, the fresh air channel comprises a coarse filter A and a surface air cooler A, and the return air channel comprises a coarse filter B and a surface air cooler B; the inlet of the fresh air channel is connected with a fresh air pipeline, and the inlet of the return air channel is connected with a return air pipeline; the fresh air pipeline is connected with the return air pipeline through a connecting pipeline, an air valve B is arranged on the connecting pipeline, and an air valve A is arranged on the return air pipeline.
The flow ratio of the fresh air channel to the return air channel is as follows: 1:2.
The fresh air channel is sequentially provided with a coarse filter A and a surface air cooler A from the inlet end to the outlet end.
The air return channel is sequentially provided with a coarse filter B and a surface air cooler B from the inlet end to the outlet end.
A use method of a fresh air system, which comprises the following steps of,
closing an air valve B, opening an air valve A, enabling indoor air to enter a return air duct under the action of a blower, enabling the indoor air to enter the room again through a coarse filter B, a surface cooler B, a humidifier, a fan and a high-medium efficiency filter in sequence, enabling outdoor air to enter a fresh air channel under the action of the blower, and enabling the outdoor air to enter the room through the coarse filter A, the surface cooler A, the humidifier, the fan and the high-medium efficiency filter in sequence;
or the air valve A is closed, the air valve B is opened, and the outdoor air enters the fresh air channel and the return air channel under the action of the air feeder and sequentially enters the room through the coarse filter, the surface cooler, the humidifier, the fan and the high-efficiency and medium-efficiency filter.
A fan coil is used in an indoor matching mode, and the temperature of a single room is independently controlled. By adopting the technical scheme, the beneficial technical effects brought are as follows:
1. the invention can adapt to the use requirements of various environmental conditions, increase the total purified air quantity and ventilation times, improve the indoor air quality, do not increase the fresh air heat and humidity load of the air conditioner at ordinary times, and simultaneously, the fan coil pipes in each room can be flexibly used to independently adjust the room temperature.
2. In the invention, the high-medium-efficiency filter and the coarse-efficiency filter are arranged in the fresh air system, and a professional only needs to replace and maintain the filters in the machine body, so that the maintenance workload is reduced, the pollution risk is reduced, and the fresh air system is safer.
3. According to the invention, when special conditions occur, such as respiratory tract infection risks, the fresh air system can realize full fresh air operation by closing the air valve A and opening the air valve B, increase the fresh air volume dilution, greatly reduce the number of indoor potential particles with pathogenic microorganisms such as bacteria and viruses, and greatly reduce the risk of indoor air-borne diseases under special conditions.
4. The surface coolers arranged in the return air channel and the fresh air channel can cool and dehumidify fresh air when used in summer; can heat the new trend through the surface cooler in winter, satisfy indoor temperature, humidity travelling comfort requirement through the humidifier to the air humidification. Simultaneously, the fresh air channel and the return air channel are respectively arranged, so that the fresh air and the return air can be treated differently, the return air coming out indoors does not need to be subjected to heat and humidity treatment during air conditioning at ordinary times.
5. In the invention, the humidifier is arranged in the machine body, so that the requirement of air conditioning humidification in winter can be met.
6. In the invention, the flow ratio of the fresh air channel to the return air channel is as follows: and the ratio of fresh air to return air in the total air supply can be controlled and adjusted by adjusting the opening degrees of the air valve A and the air valve B, so that the requirement of changing the fresh air quantity is met.
Drawings
FIG. 1 is a schematic structural view of example 1 of the present invention;
FIG. 2 is a schematic structural diagram of example 2 of the present invention;
in the drawings: 1. the air conditioner comprises a machine body, 2 high-efficiency and medium-efficiency filters, 3 a blower, 4 a humidifier, 5 a coarse-efficiency filter A, 6, a surface air cooler A, 7, a coarse-efficiency filter B, 8, a surface air cooler B, 9, an air supply pipeline, 10 a fresh air pipeline, 11 a return air pipeline, 12 a connecting pipeline, 13 an air valve A, 14, an air valve B, 15 and a fan coil.
Detailed Description
Example 1
When the hospital is used:
when no epidemic situation exists at ordinary times, relatively few bacteria and virus particles are carried in indoor air, and the risk of air infection in a hospital is low, as shown in fig. 1, an air valve A13 is opened, an air valve B14 is closed, the air volume ratio of a fresh air channel to an air return channel is set to be 1:2, and the air volume ratio is 1:2 by setting the size ratio of the fresh air channel to the air return channel to be 1: 2; the air blower 3 is selected to realize that the air volume of the fresh air channel is 2 times/h of the ventilation frequency of the service space, the air volume of the return air channel is 4 times/h of the ventilation frequency of the service space, the total air volume of the air blower 3 is calculated according to the ventilation frequency of 4+ 2-6 times/h of the service space, the fresh air ratio is about 33%, and the return air ratio is about 66.7%.
Fresh air is treated by a coarse filter A5 and a surface cooler A6, return air does not work (a water valve is closed) by a coarse filter B7 and a surface cooler B8 of a return air channel, the fresh air and the return air are mixed by a humidifier 4 (used when the air conditioner needs to be humidified in winter), the fresh air and the return air are sent to a high-efficiency filter 2 by a blower 3 and then sent to rooms such as each examination room and the like by a supply air pipeline 9, and the return air is concentrated in a common area of a walking channel by a return air pipeline 11. Because the fresh air return air is filtered by coarse efficiency and high-medium efficiency, the concentration of indoor particulate matters is greatly reduced compared with the traditional mode, the quality of indoor air is greatly improved, and because only fresh air is subjected to heat and humidity treatment in air conditioning seasons, the energy consumption of the heat and humidity treatment of the air is not increased.
The indoor temperature of each room can be adjusted independently by adopting the fan coil 15, the fan coil 15 is preferably a dry type fan coil, and the fan coil 15 in each room has no condensed water, so that the risk of breeding the mold is reduced.
As shown in figure 1, the air valve A13 is closed, the air valve B14 is opened, and the air valve A is matched with an exhaust system or an exhaust outlet of an openable door and window, so that full fresh air operation is realized, the dilution effect of purified fresh air quantity on germ-carrying particles in the air is increased, the total fresh air ventilation frequency reaches more than 6 times/h, the number of indoor potential virus particles is greatly reduced, and the risk of air infection in a hospital during epidemic situations is greatly reduced.
Wherein the surface cooler B8 that sets up in the return air passageway, when taking place the epidemic situation in winter or taking place the epidemic situation in summer, accessible surface cooler B carries out the hot humid processing to the new trend that increases, satisfies indoor temperature humidity travelling comfort requirement, can not appear the room because the new trend increases the condition that summer is overheated, winter is supercooled. The humidifier 4 is arranged, so that the humidity of a room can meet the comfort requirement in winter, and viruses and bacteria are inhibited.
Example 2
When the office building is used:
when no epidemic situation exists (no potential people with viruses), the indoor air has few bacteria and virus particles, and the indoor air infection risk is small, as shown in fig. 2, the air valve B14 is closed, the air valve A13 is opened, the air volume ratio of the fresh air channel to the return air channel is set to be 1:2, and the air volume ratio is 1:2 by setting the size ratio of the fresh air channel to the return air channel to be 1: 2; the air blower 3 is selected to realize that the air volume of the fresh air channel is 2 times/h of the ventilation frequency of the service space, the air volume of the return air channel is 4 times/h of the ventilation frequency of the service space, the total air volume of the air blower 3 is calculated according to the ventilation frequency of 4+ 2-6 times/h of the service space, the fresh air ratio is about 33%, and the return air ratio is about 66.7%.
Fresh air is treated by a coarse filter A5 and a surface cooler A6, return air does not work (a water valve is closed) by a coarse filter B7 and a surface cooler B8 of a return air channel, the fresh air and the return air are mixed by a humidifier 4 (used when the air conditioner needs to be humidified in winter), the fresh air and the return air are sent to a medium efficiency filter 2 by a blower 3 and then sent to each office room by a supply air pipeline 9, and the return air is concentrated in a common area of a passage by a return air pipeline 11. Because the fresh air return air is filtered by coarse efficiency and high-medium efficiency, the concentration of indoor particulate matters is greatly reduced compared with the traditional mode, the quality of indoor air is greatly improved, and because only fresh air is subjected to heat and humidity treatment in air conditioning seasons, the energy consumption of the heat and humidity treatment of the air is not increased.
Public buildings such as office in epidemic situations may have potential people with bacteria and viruses and have certain risk of air infection, as shown in fig. 1, an air valve A13 is closed, an air valve B14 is opened, and an exhaust system or an openable door and window exhaust outlet is matched, so that the dilution effect of purified fresh air volume on particles carrying germs in the air is increased, the total purified fresh air volume reaches the ventilation frequency of a service space for more than 6 times/h, the number of indoor potential virus particles is greatly reduced, and the risk of air infection in the office environment is greatly reduced.
Wherein the surface cooler that sets up in the former return air passageway takes place the epidemic situation in winter or when the epidemic situation takes place in summer, and the accessible surface cooler carries out the hot wet processing to the new trend that increases, satisfies indoor temperature humidity travelling comfort requirement, can not appear the room because the new trend increases the condition that summer is overheated, winter is supercooled. The humidifier 4 is arranged, so that the humidity of a room can meet the comfort requirement in winter, and viruses and bacteria are inhibited.
Example 3
A fresh air system comprises a machine body 1, wherein the inlet end of the machine body 1 is connected with a fresh air pipeline 10 and an air return pipeline 11, the outlet end of the machine body 1 is connected with an air supply pipeline 9, and a high-medium efficiency filter 2, an air feeder 3, a humidifier 4 and two parallel channels are sequentially arranged in the machine body 1 from the outlet end to the inlet end; the two parallel channels comprise a fresh air channel and a return air channel, the fresh air channel comprises a coarse filter A5 and a surface air cooler A6, and the return air channel comprises a coarse filter B7 and a surface air cooler B8; the inlet of the fresh air channel is connected with a fresh air pipeline 10, and the inlet of the return air channel is connected with a return air pipeline 11; the fresh air pipeline 10 is connected with the return air pipeline 11 through a connecting pipeline 12, an air valve B14 is arranged on the connecting pipeline 12, and an air valve A13 is arranged on the return air pipeline 11.
A broad spectrum active carbon filter for removing organic volatile matters such as formaldehyde, benzene and the like can be added and selected behind the high-medium efficiency filter 2, and after the high-medium efficiency filter is used for filtering, VOC organic volatile matters in the indoor air are purified.
The flow ratio of the fresh air channel to the return air channel is as follows: 1:2.
The fresh air channel is sequentially provided with a coarse filter A5 and a surface air cooler A6 from the inlet end to the outlet end.
The return air channel is provided with a coarse filter B7 and a surface cooler B8 from the inlet end to the outlet end in sequence.
A use method of a fresh air system, which comprises the following steps of,
the first operation mode is as follows:
the air valve B14 is closed, the air valve A13 is opened, indoor air enters the air return duct under the action of the air feeder 3, and then enters the room again after sequentially passing through the coarse filter B7, the surface air cooler B8, the humidifier 4, the fan 3 and the high-efficiency and medium-efficiency filter 2, outdoor air enters the fresh air channel under the action of the air feeder 3, and then enters the room after sequentially passing through the coarse filter A5, the surface air cooler A6, the humidifier 4, the fan 3 and the high-efficiency and medium-efficiency filter 2;
with surface cooler B8 not operating (water valve closed).
Wherein the humidifier only works when the air conditioner needs to humidify in winter.
And a second operation mode:
the air valve A13 is closed, the air valve B14 is opened, outdoor air enters a fresh air channel and a return air channel under the action of a blower, and enters the room after passing through the coarse filter, the surface air cooler, the humidifier 4, the fan 3 and the high-efficiency and medium-efficiency filter 2.
Wherein the humidifier 4 works only when the air conditioner needs to humidify in winter.
The fan coil 15 is used in cooperation indoors, and independent control over the temperature of a single room is achieved.
The fan coil 15 can be a common fan coil or a dry fan coil.
Compare traditional fan coil and add new trend system, adopt the operation mode one can increase the amount of wind of returning and increase the forced draught blower amount of wind through setting up the return air passageway under the cold and hot load condition of new trend air conditioner not increasing the amount of wind and increase the number of wind of giving vent to anger of the total purification amount of wind of improvement system to improve the air quality of service room environment. The fan coil 15 is still adopted in the system service room, so that flexible use and independent room temperature regulation are realized; the dry type fan coil is used in a matched mode indoors, and independent control of the temperature and the humidity of a room can be achieved.
By adopting the second operation mode, during respiratory infectious diseases, the system can realize full fresh air operation, greatly increases the fresh air volume of the service room after purification and heat and humidity treatment in air conditioning seasons, greatly increases the capability of purifying fresh air to dilute pathogenic bacteria particles carried in the service room, can meet the requirements of indoor temperature and humidity, and improves the capability of resisting epidemic situation in places.
Wherein the middle-efficiency filter 2, the blower 3, the humidifier 4, the coarse-efficiency filter, the surface cooler and the fan coil 15 are all existing and can be directly purchased, assembled and used.
Claims (6)
1. The utility model provides a new trend system, includes organism (1), its characterized in that: the inlet end of the machine body (1) is connected with a fresh air pipeline (10) and an air return pipeline (11), the outlet end of the machine body (1) is connected with an air supply pipeline (9), and a high-medium efficiency filter (2), an air supply machine (3), a humidifier (4) and two parallel channels are sequentially arranged in the machine body (1) from the outlet end to the inlet end; the two parallel channels comprise a fresh air channel and a return air channel, the fresh air channel comprises a coarse filter A (5) and a surface air cooler A (6), and the return air channel comprises a coarse filter B (7) and a surface air cooler B (8); the inlet of the fresh air channel is connected with a fresh air pipeline (10), and the inlet of the return air channel is connected with a return air pipeline (11); the fresh air pipeline (10) is connected with the return air pipeline (11) through a connecting pipeline (12), an air valve B (14) is arranged on the connecting pipeline (12), and an air valve A (13) is arranged on the return air pipeline (11).
2. A fresh air system according to claim 1, wherein: the flow ratio of the fresh air channel to the return air channel is as follows: 1:2.
3. A fresh air system according to claim 1, wherein: the fresh air channel is sequentially provided with a coarse filter A (5) and a surface air cooler A (6) from the inlet end to the outlet end.
4. A fresh air system according to claim 1, wherein: the air return channel is sequentially provided with a coarse filter B (7) and a surface air cooler B (8) from the inlet end to the outlet end.
5. Use according to any one of claims 1 to 4, characterized in that:
the air valve B (14) is closed, the air valve A (13) is opened, indoor air enters the air return air channel under the action of the air feeder (3), and then enters the room again after sequentially passing through the coarse filter B (7), the surface air cooler B (8), the humidifier (4), the fan (3) and the high-medium efficiency filter (2), and outdoor air enters the fresh air channel under the action of the air feeder (3) and then enters the room after sequentially passing through the coarse filter A (5), the surface air cooler A (6), the humidifier (4), the fan (3) and the high-medium efficiency filter (2);
or the air valve A (13) is closed, the air valve B (14) is opened, the outdoor air enters the fresh air channel and the return air channel under the action of the air feeder (3) and sequentially enters the room through the coarse filter, the surface air cooler, the humidifier (4), the fan (3) and the high-medium efficiency filter (2).
6. The use method of a fresh air system according to claim 5, wherein: a fan coil (15) is used in a matched mode indoors, and independent control over the temperature of a single room is achieved.
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| CN202010289328.5A CN111473456A (en) | 2020-04-14 | 2020-04-14 | Fresh air system and using method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112923541A (en) * | 2021-03-22 | 2021-06-08 | 南京拓展科技有限公司 | Device and method capable of simultaneously realizing energy conservation and high-precision temperature and humidity control |
| TWI763413B (en) * | 2021-03-30 | 2022-05-01 | 奇鼎科技股份有限公司 | Air Environment Control System |
| CN116476882A (en) * | 2023-05-30 | 2023-07-25 | 石家庄国祥运输设备有限公司 | High energy efficiency ratio air conditioning unit for railway vehicle |
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| 金招芬，朱颖心主编: "《建筑环境学》", 31 December 2001, 中国建筑工业出版社 * |
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| CN112923541A (en) * | 2021-03-22 | 2021-06-08 | 南京拓展科技有限公司 | Device and method capable of simultaneously realizing energy conservation and high-precision temperature and humidity control |
| TWI763413B (en) * | 2021-03-30 | 2022-05-01 | 奇鼎科技股份有限公司 | Air Environment Control System |
| CN116476882A (en) * | 2023-05-30 | 2023-07-25 | 石家庄国祥运输设备有限公司 | High energy efficiency ratio air conditioning unit for railway vehicle |
| CN116476882B (en) * | 2023-05-30 | 2024-02-13 | 石家庄国祥运输设备有限公司 | High energy efficiency ratio air conditioning unit for railway vehicle |
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