CN112923487A - Fresh air system with automatic oxygenation function - Google Patents
Fresh air system with automatic oxygenation function Download PDFInfo
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- CN112923487A CN112923487A CN202110319009.9A CN202110319009A CN112923487A CN 112923487 A CN112923487 A CN 112923487A CN 202110319009 A CN202110319009 A CN 202110319009A CN 112923487 A CN112923487 A CN 112923487A
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- China
- Prior art keywords
- air
- fresh air
- oxygen
- molecular sieve
- sieve adsorption
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- 238000006213 oxygenation reaction Methods 0.000 title claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000001301 oxygen Substances 0.000 claims abstract description 46
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 46
- 239000002808 molecular sieve Substances 0.000 claims description 27
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims description 27
- 238000001179 sorption measurement Methods 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 10
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 239000012535 impurity Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000003795 desorption Methods 0.000 claims description 3
- 230000007774 longterm Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 238000003915 air pollution Methods 0.000 description 5
- 206010021143 Hypoxia Diseases 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009298 carbon filtering Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001706 oxygenating effect Effects 0.000 description 1
Images
Classifications
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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
-
- 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
-
- 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
-
- 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
- F24F3/16—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 purification, e.g. by filtering; by sterilisation; by ozonisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/76—Oxygen
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation Of Gases By Adsorption (AREA)
Abstract
The invention relates to a fresh air system with an automatic oxygenation function, and the fresh air system comprises a fresh air pipeline system, an exhaust pipeline system, an oxygen generation device and a control system. The invention adds an oxygen making device on the basis of the original fresh air system, outdoor air can be supplied with pollution-free air indoors after being processed by the fresh air system, when the oxygen content of the indoor air is reduced due to long-term sealing, the device can also automatically oxygenate the indoor air, ensure that the indoor oxygen is sufficient, and discharge the indoor air outdoors at intervals to ensure the circulation of the indoor air. The device can automatically run under the control of the control system while meeting the oxygen requirement of indoor people, and has convenient operation and high automation degree.
Description
Technical Field
The invention relates to the field of fresh air exchange equipment, in particular to a fresh air system with an automatic oxygenation function.
Background
With the acceleration of the industrialization process, air pollution becomes a topic which is essential to the life of people. Meanwhile, people are more and more obvious influenced by building air pollution such as interior decoration, and the physical health of people is greatly threatened, and indoor and outdoor air pollution faces huge pressure, so that the indoor and outdoor air is treated in time, the harm to human bodies caused by air pollution is avoided, and a fresh air system and an air purifier are generated.
The plateau area of China is very wide, and the plateau area with the height of more than 3000 meters is about one fourth of the total area of the plateau area, is mainly distributed in Tibet, Xinjiang and Qinghai, and the number of people from inland to plateau is more than 1000 thousands of people per time each year. However, the natural environment of the highland, which is badly bad, seriously affects the health of people who enter the highland, and according to statistics, 60-90% of people living in the plain can suffer from acute altitude diseases when the people rapidly enter the region with the altitude of more than 3000 m, thereby restricting the development of national economy in the plateau region. The reasons for the altitude stress are low atmospheric pressure, thin air and low oxygen concentration in the altitude environment. Therefore, the problem of oxygen deficiency of people in plateau areas in plain areas is absolutely necessary to be solved.
At present, what solve indoor outer air pollution common use is the new trend system, but most new trend system just accelerate the circulation speed of indoor air, and it is indoor to handle the outdoor air suction, and indoor contaminated air discharge is outdoor, does not have the device that increases indoor oxygen content, can't solve the plain and advance plateau people's oxygen deficiency problem.
Disclosure of Invention
The invention aims to overcome the defects of the technical problems and provide a fresh air system with an automatic oxygenation function, wherein an oxygen generator is additionally arranged on the basis of the original fresh air system to achieve the aim of oxygenating the indoor environment.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a new trend system with automatically, oxygenate function includes:
the fresh air pipeline system is used for filtering outdoor air and sending the filtered outdoor air into the room;
the air exhaust pipeline system is used for regularly exhausting indoor air to the outside;
the oxygen generating device is used for generating oxygen and conveying the oxygen to the room when the indoor oxygen content is low;
the control system comprises a controller and is used for controlling the operation of the whole fresh air system.
Furthermore, the fresh air pipeline system comprises a first air inlet electromagnetic valve, a first air compressor, an air-water separator, a filtering system, a fresh air fan and a first one-way valve which are sequentially communicated; the filtering system of the fresh air pipeline system comprises a primary filter screen, a middle filter screen, a high-efficiency filter screen and an activated carbon filter screen, wherein the primary filter screen is selected and matched according to the actual outdoor air quality.
Furthermore, the exhaust duct system comprises a second one-way valve and an exhaust fan which are sequentially communicated from indoor to outdoor.
Further, the oxygen generating device comprises a second air inlet electromagnetic valve, a pressure gauge, a second air compressor, a molecular sieve adsorption tower parallel device, an air storage tank, a flow meter and an exhaust valve which are communicated in sequence; the molecular sieve adsorption tower parallel device is formed by connecting two groups of three-way electromagnetic valve, molecular sieve adsorption tower and two-way electromagnetic valve which are communicated in sequence in parallel, and the two three-way electromagnetic valves are communicated with a vacuum pump;
the operation mode of the molecular sieve adsorption tower parallel device is as follows: when one molecular sieve adsorption tower runs, impurity gases such as nitrogen and the like are adsorbed on the molecular sieve adsorption tower, and oxygen is stored in a gas storage tank through a two-way electromagnetic valve; at the moment, the other molecular sieve adsorption tower is in a desorption state, and the impurity gases such as nitrogen and the like adsorbed by the molecular sieve adsorption tower are exhausted through the three-way electromagnetic valve by the vacuum pump. The two molecular sieve adsorption towers run alternately with a period of 15 s.
Furthermore, the fresh air pipeline system, the tail end of the oxygen generation device and the starting end of the exhaust pipeline system are communicated with the indoor through pipelines.
Furthermore, an oxygen sensor and a PM2.5 sensor are arranged indoors.
Further, the controller with the first solenoid valve of admitting air of fresh air pipe-line system, first check valve, exhaust pipe-line system's second check valve, electric connection between oxygenerator's second solenoid valve of admitting air, two three-way solenoid valve, two divide solenoid valves, flowmeter, discharge valve.
The technical scheme of the invention has the following beneficial effects:
according to the technical scheme, the oxygen generator is additionally arranged on the basis of an original fresh air system, outdoor air is compressed by an air compressor and then enters an air-water separator for drying the air, then dust particles, PM2.5 and other particles in the air are removed by a filtering system, and harmful gas and peculiar smell in the air are removed by an active carbon filtering net in the air, so that pollution-free air can be supplied indoors. The device can automatically run under the control of the control system while meeting the oxygen requirement of indoor people, and has convenient operation and high automation degree.
Drawings
FIG. 1 is a schematic structural diagram of a fresh air system with automatic oxygenation function according to the present invention.
Detailed Description
Embodiments of the present invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Example 1
As shown in fig. 1, a fresh air system with automatic oxygenation function includes:
the fresh air pipeline system is used for filtering outdoor air and sending the filtered outdoor air into the room;
the air exhaust pipeline system is used for regularly exhausting indoor air to the outside;
the oxygen generating device is used for generating oxygen and conveying the oxygen to the room when the indoor oxygen content is low;
the control system comprises a controller 21 and is used for controlling the operation of the whole fresh air system.
The fresh air pipeline system comprises a first air inlet electromagnetic valve 1, a first air compressor 2, an air-water separator 3, a filtering system 4, a fresh air fan 5 and a first one-way valve 6 which are communicated in sequence; the filtering system 4 of the fresh air pipeline system comprises a primary filter screen, a middle filter screen, a high-efficiency filter screen and an activated carbon filter screen, wherein the primary filter screen is selected and matched according to the actual outdoor air quality. The exhaust duct system comprises a second one-way valve 19 and an exhaust fan 20 which are sequentially communicated from indoor to outdoor.
The oxygen generation device comprises a second air inlet electromagnetic valve 8, a pressure gauge 9, a second air compressor 10, a molecular sieve adsorption tower parallel device, an air storage tank 15, a flow meter 16 and an exhaust valve 17 which are communicated in sequence; the molecular sieve adsorption tower parallel device is formed by connecting two groups of three-way electromagnetic valve (11, 12), a molecular sieve adsorption tower (A, B) and two-way electromagnetic valve (13, 14) which are communicated in sequence in parallel, and the two three-way electromagnetic valves (11, 12) are communicated with a vacuum pump 18. The operation mode of the molecular sieve adsorption tower parallel device is as follows: when one molecular sieve adsorption tower (A) runs, impurity gases such as nitrogen and the like are adsorbed on the molecular sieve adsorption tower (A), and oxygen is stored in a gas storage tank 15 through a two-way electromagnetic valve 13; at this time, the other molecular sieve adsorption tower (B) is in a desorption state, and the impurity gas such as nitrogen gas adsorbed by the molecular sieve adsorption tower (B) is discharged through the three-way electromagnetic valve 12 by the vacuum pump 18. The two molecular sieve adsorption towers run alternately with a period of 15 s.
The fresh air pipeline system, the tail end of the oxygen generating device and the starting end of the exhaust pipeline system are communicated with the room 7 through pipelines. The room 7 is provided with an oxygen sensor a and a PM2.5 sensor b. The controller 21 with the first air inlet solenoid valve 1 of new blast pipe system, first check valve 6, exhaust pipe system's second check valve 19, electric connection between the second air inlet solenoid valve 8 of oxygenerator, two three-way solenoid valve (11, 12), two divide solenoid valves (13, 14), flowmeter 16, discharge valve 17.
The more detailed explanation is:
the controller of the device control system is set in advance, the upper limit of the concentration of oxygen is 21%, and the lower limit is 18%; the limit of the concentration of PM2.5 is 300. mu.g/m3Lower limit 115. mu.g/m3。
When the PM2.5 sensor b detects that the PM2.5 in the room is less than 100 mu g/m3In time, the fresh air system is not started.
When the PM2.5 sensor b detects 100 mu g/m3PM2.5 less than or equal to 400 mu g/m of indoor air3When the air is dried by the air-water separator 3, the air enters the filtering system, is filtered by the filtering system 4, is changed into clean air, and is sent into a room through the fresh air fan 5; along with the time, when the oxygen sensor a detects that the indoor oxygen concentration is lower than 18%, the controller 21 controls the exhaust valve 17 to open, the oxygen in the air storage tank 15 is sent into the room 7 until the oxygen concentration is higher than 21%, meanwhile, if the oxygen concentration detected by the flow meter 16 is very small and close to 0, the second air inlet electromagnetic valve 8 is opened, the oxygen generation device continues to generate oxygen until the air storage tank 15 is full, and the operation is circulated and automatic oxygen charging is carried out.
When the PM2.5 sensor detects the PM2.5 of the indoor air is more than 400 mu g/m3At regular intervals (e.g., four hours), the controller 21 controls the first check valve 6 and the exhaust valve 17 to be closed, the second check valve to be opened, and the exhaust fan to be operated to exhaust the indoor air to the outside.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A fresh air system with automatic oxygenation function, comprising:
the fresh air pipeline system is used for filtering outdoor air and sending the filtered outdoor air into the room;
the air exhaust pipeline system is used for regularly exhausting indoor air to the outside;
the oxygen generating device is used for generating oxygen and conveying the oxygen to the room when the indoor oxygen content is low;
the control system comprises a controller and is used for controlling the operation of the whole fresh air system.
2. The fresh air system with the automatic oxygenation function according to claim 1, wherein the fresh air pipeline system comprises a first air inlet electromagnetic valve, a first air compressor, an air-water separator, a filtering system, a fresh air fan and a first one-way valve which are sequentially communicated;
the filtering system of the fresh air pipeline system comprises a primary filter screen, a middle filter screen, a high-efficiency filter screen and an activated carbon filter screen, wherein the primary filter screen is selected and matched according to the actual outdoor air quality.
3. The fresh air system with automatic oxygen charging function as claimed in claim 1, wherein the exhaust duct system comprises a second one-way valve and an exhaust fan sequentially connected from indoor to outdoor.
4. The fresh air system with the automatic oxygenation function according to claim 1, wherein the oxygen generation device comprises a second air inlet electromagnetic valve, a pressure gauge, a second air compressor, a molecular sieve adsorption tower parallel device, an air storage tank, a flow meter and an exhaust valve which are communicated in sequence; the molecular sieve adsorption tower parallel device is formed by connecting two groups of three-way electromagnetic valve, molecular sieve adsorption tower and two-way electromagnetic valve which are communicated in sequence in parallel, and the two three-way electromagnetic valves are communicated with a vacuum pump;
the operation mode of the molecular sieve adsorption tower parallel device is as follows: when one molecular sieve adsorption tower runs, impurity gases such as nitrogen and the like are adsorbed on the molecular sieve adsorption tower, and oxygen is stored in a gas storage tank through a two-way electromagnetic valve; at the moment, the other molecular sieve adsorption tower is in a desorption state, and the impurity gases such as nitrogen and the like adsorbed by the molecular sieve adsorption tower are exhausted through a three-way electromagnetic valve by a vacuum pump;
the two molecular sieve adsorption towers run alternately with a period of 15 s.
5. The fresh air system with automatic oxygenation function as claimed in claim 1, wherein the fresh air duct system, the tail end of the oxygen generator and the starting end of the exhaust duct system are all communicated with the room through pipes;
an oxygen sensor and a PM2.5 sensor are arranged indoors.
6. The fresh air system with automatic oxygen charging function as claimed in claim 1, wherein the controller is electrically connected with a first air inlet electromagnetic valve and a first one-way valve of the fresh air pipeline system, a second one-way valve of the exhaust pipeline system, and a second air inlet electromagnetic valve, two three-way electromagnetic valves, two-half electromagnetic valves, a flow meter and an exhaust valve of the oxygen generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110319009.9A CN112923487A (en) | 2021-03-25 | 2021-03-25 | Fresh air system with automatic oxygenation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110319009.9A CN112923487A (en) | 2021-03-25 | 2021-03-25 | Fresh air system with automatic oxygenation function |
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| Publication Number | Publication Date |
|---|---|
| CN112923487A true CN112923487A (en) | 2021-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110319009.9A Pending CN112923487A (en) | 2021-03-25 | 2021-03-25 | Fresh air system with automatic oxygenation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180762A (en) * | 2022-07-17 | 2022-10-14 | 北京嘎子科技有限公司 | Indoor constant-temperature high-oxygen water circulation preparation method and system |
-
2021
- 2021-03-25 CN CN202110319009.9A patent/CN112923487A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180762A (en) * | 2022-07-17 | 2022-10-14 | 北京嘎子科技有限公司 | Indoor constant-temperature high-oxygen water circulation preparation method and system |
| CN115180762B (en) * | 2022-07-17 | 2023-12-26 | 北京嘎子科技有限公司 | Indoor constant-temperature high-oxygen water circulation preparation method and system |
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