CN110736167A - air purification system with central molecular sieve oxygen generation supporting multi-channel indoor unit intelligent distribution oxygen supplementation - Google Patents

air purification system with central molecular sieve oxygen generation supporting multi-channel indoor unit intelligent distribution oxygen supplementation Download PDF

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Publication number
CN110736167A
CN110736167A CN201911097955.2A CN201911097955A CN110736167A CN 110736167 A CN110736167 A CN 110736167A CN 201911097955 A CN201911097955 A CN 201911097955A CN 110736167 A CN110736167 A CN 110736167A
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China
Prior art keywords
oxygen
air
supplemented
space
molecular sieve
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CN201911097955.2A
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Chinese (zh)
Inventor
徐丽天
胡维荣
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Nanjing Shi Mai Ai Library Intelligent Technology Co Ltd
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Nanjing Shi Mai Ai Library Intelligent Technology Co Ltd
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Priority to CN201911097955.2A priority Critical patent/CN110736167A/en
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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
    • F24F3/16—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
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • 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
    • F24F13/02—Ducting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/60—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by adding oxygen
    • 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

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Separation Of Gases By Adsorption (AREA)

Abstract

The invention relates to an air purification system supporting intelligent oxygen distribution and supplementation of multi-channel indoor units by central molecular sieve oxygen generation, which comprises a molecular sieve oxygen generation unit, wherein the output end of the molecular sieve oxygen generation unit is communicated with an air inlet of a gas distribution box through a main air pipe, the gas distribution box is communicated with a plurality of spaces to be supplemented with oxygen through a branch air pipe, oxygen generated by the molecular sieve oxygen generation unit is injected into the spaces to be supplemented with oxygen sequentially through the main air pipe, the gas distribution box, the branch air pipe and an oxygen supplementation window, a plurality of gas diffusion holes are formed in the bottom of a wall body, a main control air valve is arranged in the main air pipe, a branch control air valve is arranged in each branch air pipe, and an oxygen concentration sensor is arranged in each space to be supplemented with oxygen.

Description

air purification system with central molecular sieve oxygen generation supporting multi-channel indoor unit intelligent distribution oxygen supplementation
Technical Field
The invention relates to the technical field of air conditioners and fresh air, in particular to an air purification system with central molecular sieve oxygen generation supporting multi-channel indoor unit intelligent distribution oxygen supplementation.
Background
In the known data, when the oxygen content of the indoor air is lower than 21%, discomfort can be caused to human body, and when the oxygen content of the indoor air is lower than 15%, injury can be caused to human body, and symptoms such as shortness of breath, headache, dizziness and the like can be caused, however, if the oxygen content of the indoor air is higher than 30%, the human body function can be damaged, and when the oxygen concentration is between 25% and 30%, the optimal state is achieved.
The existing fresh air system improves the indoor oxygen content by blowing a large amount of outdoor air into the room and exhausting indoor gas, but has the following problems that , fresh air is blown into the room, the indoor oxygen content cannot be improved all the time, the indoor oxygen concentration is always lower than that outdoors, secondly, fresh air is blown into the room, the indoor and outdoor heat exchange rate is artificially improved, the indoor temperature is not maintained easily in summer and winter, and a large amount of energy is consumed to heat or cool the fresh air.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an air purification system with central molecular sieve oxygen generation supporting multi-channel indoor unit intelligent distribution oxygen supplementation, which can realize a machine-mounted multi-chamber oxygen supplementation scheme, and can prevent the damage to human body caused by overhigh indoor carbon dioxide concentration while maintaining the indoor oxygen concentration in a better range.
In order to achieve the purpose, the invention adopts the following technical scheme:
air purification system with central molecular sieve oxygen generation supporting multi-channel indoor machine intelligent distribution and oxygen supplement, which is characterized by comprising a molecular sieve oxygen generation unit, wherein the output end of the molecular sieve oxygen generation unit is communicated with the air inlet of an air distribution box through a main air pipe, and the air distribution box is communicated with a plurality of spaces to be supplemented with oxygen through a branch air pipe;
the wall body of the space to be oxygen supplemented is provided with a plurality of oxygen supplementing windows, the branch gas pipe penetrates through the wall body and is communicated with the oxygen supplementing windows, the adjacent oxygen supplementing windows are communicated through the embedded gas pipe, and oxygen generated by the molecular sieve oxygen generating unit is injected into the space to be oxygen supplemented sequentially through the main gas pipe, the gas distributing box, the branch gas pipe and the oxygen supplementing windows;
the bottom of the wall body is provided with a plurality of gas diffusion holes, and the gas diffusion holes are used for communicating the inside and the outside of the space to be supplemented with oxygen;
the oxygen concentration sensor is connected with the signal input end of the controller through a signal line, and the signal output end of the controller is connected with the controller signals of the main control air valve and the sub-control air valve through a signal line.
The molecular sieve oxygen generator set comprises a plurality of molecular sieve oxygen generators connected with gas circuits in parallel, the molecular sieve oxygen generators are communicated with a high-pressure gas storage chamber, and the high-pressure gas storage chamber is communicated with a main gas pipe.
The gas diffusion hole including the support steel pipe that runs through the wall body, the support steel pipe in install the th filter screen that the slope set up, the marginal outside of filter screen be provided with the dog, dog fixed mounting on supporting the steel pipe inner wall.
Each bronchus in all be provided with one-way pneumatic valve, one-way pneumatic valve set up between branch control valve and oxygenating window, oxygenating window include the boxlike diffusion air chamber of cavity, the diffusion air chamber inlay the internal surface at the wall body, the diffusion air chamber in be provided with the second filter screen, the diffusion air chamber on seted up a plurality of diffusion gas pocket, the second filter screen with the junction of bronchus and diffusion air chamber and diffusion gas pocket separate.
The air distribution box is internally provided with a hollow air chamber, the center of the side surface of the air distribution box is provided with an air inlet hole, the other side surface and the end surfaces of the two ends of the air distribution box are respectively provided with a plurality of air outlet holes, the air inlet hole and the air outlet holes are communicated with the hollow air chamber, the air inlet hole and the air outlet holes are the same in size, the air inlet hole is communicated with the main air pipe, and each air outlet hole is communicated with branch air pipes.
The air inlet and the air outlet are internally provided with detachable connectors, each connector comprises a rotary connection part, a force application part and an insertion part, the rotary connection part and the insertion part are both cylinders, the force application part is a regular hexagonal prism, the diameter of an inner circle of the horizontal section of the force application part is larger than that of the rotary connection part and that of the insertion part, the force application part is arranged between the rotary connection part and the insertion part, the centers of the rotary connection part, the force application part and the insertion part are coaxial, the outer surface of the rotary connection part is provided with threads, the outer surface of the insertion part is provided with multistage clamping grooves, and the center of the connector is provided with an air vent.
The outer edge of the joint of the rotary joint part and the force application part is provided with an th sealing ring, each level of clamping grooves of the multistage clamping grooves are provided with a second sealing ring, the th sealing ring is fixedly arranged on the bottom surface of the force application part, and the second sealing rings are respectively and fixedly arranged on the surfaces of the clamping grooves of each level of clamping grooves.
A control method of an air purification system supporting multi-channel indoor unit intelligent distribution oxygen supplementation by central molecular sieve oxygen generation is characterized in that after the oxygen supplementation of spaces to be supplemented is finished, all the spaces to be supplemented are sorted according to the indoor oxygen concentration, and the space to be supplemented with the lowest oxygen concentration is supplemented with oxygen, and the specific steps are as follows:
step 1, starting a system, closing a sub-control air valve arranged in each branch air pipe, starting a main control air valve arranged in a main air pipe, and starting a molecular sieve oxygen generating unit;
step 2, acquiring an oxygen concentration data signal in each space to be supplemented with oxygen by an oxygen concentration sensor in each space to be supplemented with oxygen, and sending the oxygen concentration data signal into a controller;
step 3, when the oxygen concentration in any space to be oxygenated is lower than a set value, opening branch control air valves in the branch air pipes connected with the corresponding space to be oxygenated, and closing branch control air valves in the other branch air pipes at the same time, so that only branch control air valves are opened at the same time of in the process of oxygenation;
step 4, when the oxygen concentration in the rest of the spaces to be supplemented with oxygen, which are not less than , is lower than a set value in the process of oxygenating any spaces to be supplemented with oxygen, sequencing the spaces to be supplemented with oxygen according to the indoor oxygen concentration when the oxygenation of the preceding spaces to be supplemented with oxygen is finished;
and 5, when the current space to be supplemented with oxygen is finished, closing the branch control air valves in the branch air pipes connected with the front space to be supplemented with oxygen, and opening the branch control air valves in the branch air pipes connected with the space to be supplemented with oxygen with the lowest oxygen concentration.
When the oxygen concentration in the space to be supplemented is lower than the th set value, the space to be supplemented is in the state to be supplemented with oxygen, the th set value range of the indoor oxygen concentration is 20% -22%, when the indoor oxygen concentration in the state to be supplemented with oxygen is larger than the second set value, the oxygen supplementation is stopped, and the second set value range of the indoor oxygen concentration is 28% -30%.
The sorting method for sorting the space to be oxygen-supplemented in the state to be oxygen-supplemented according to the indoor oxygen concentration when the oxygen supplementation of the space to be oxygen-supplemented is finished at the front comprises but is not limited to a selection sorting method, a bubble sorting method, an insertion sorting method, a quick sorting method, a stack sorting method, a merging sorting method, a radix sorting method and a Hill sorting method.
The air purification system supporting intelligent oxygen supply of a multi-channel indoor unit by using a central molecular sieve oxygen generation system has the advantages that is used for realizing central oxygen supply, a host machine is used for driving an oxygen supply mode of a plurality of submachine machines, the compression ratio of gas is larger, a box-shaped air distribution box cannot realize the same-pressure air supply of a plurality of air channels, therefore, an oxygen supply mode of opening air channels for times is adopted, the effectiveness of oxygen supply to each space to be supplemented with oxygen is ensured, secondly, the timeliness of oxygen supply is not realized, the indoor oxygen concentration is ensured not to be lower than 15% by increasing the set value of the minimum oxygen concentration, thirdly, a plurality of oxygen supplement windows are arranged in each space to be supplemented with oxygen and are uniformly distributed on the inner wall of the space to be supplemented with oxygen, the situation that the local oxygen concentration is overhigh in a short time is prevented, fourthly, a plurality of gas diffusion holes are arranged at the bottom of each space to be supplemented with oxygen, the indoor carbon dioxide is discharged by the free diffusion of gas and the positive pressure formed in the space during oxygen supply, the air supply is less, a large amount of air is consumed in summer, and the heat exchange of a large amount of fresh air is reduced in the traditional , and the winter.
Drawings
FIG. 1 is a schematic structural diagram of an air purification system supporting intelligent distribution of oxygen supplementation by multiple indoor units and employing central molecular sieve for oxygen generation.
FIG. 2 is a schematic diagram of the structure of gas diffusion holes in an air purification system supporting the intelligent distribution and oxygen supplementation of multiple indoor units by kinds of central molecular sieve oxygen generation.
FIG. 3 is a schematic diagram of the structure of an oxygen supplement window in an air purification system supporting the intelligent distribution of oxygen supplement by multiple indoor units through central molecular sieve oxygen generation.
FIG. 4 is a schematic structural diagram of an air distribution box in an air purification system supporting intelligent distribution and oxygen supplementation of multiple indoor units by kinds of central molecular sieve oxygen generation.
FIG. 5 is a cross-sectional view of an air distribution box in an air purification system with central molecular sieve oxygen generation supporting multi-channel indoor units for intelligent oxygen supplement distribution.
FIG. 6 is a schematic structural diagram of a connector in an air purification system supporting intelligent distribution of oxygen supplementation for multiple indoor units by kinds of central molecular sieve oxygen generation.
The reference numbers of the oxygen generating unit comprise 1 molecular sieve oxygen generating unit, 2 gas distribution box, 3 oxygen supplementing window, 4 main gas pipe, 5 main control gas valve, 6 bronchus, 7 gas distribution control gas valve, 8 pre-buried gas pipe, 9 wall body, 10 oxygen concentration sensor, 11 gas diffusion hole, 12 signal line, 13 controller, 14 support steel pipe, 15 filter screen, filter screen, 16 baffle, 17 one-way gas valve, 18 diffusion gas chamber, 19 second filter screen, 20 diffusion gas hole, 21 gas outlet hole, 22 gas inlet hole, 23 hollow gas chamber, 24 rotary connection part, 25 force application part, 26 insertion part, 27 screw thread, 28 multi-stage clamping groove, 29 second sealing ring, 30 ring sealing ring.
Detailed Description
The present invention will now be described in further detail with reference to the drawings.
As shown in figure 1, an air purification system with central molecular sieve oxygen generation supporting multi-channel indoor unit intelligent distribution oxygen supplementation is characterized by comprising a molecular sieve oxygen generation unit 1, wherein the output end of the molecular sieve oxygen generation unit 1 is communicated with an air inlet 22 of an air distribution box 2 through a main air pipe 4, and the air distribution box 2 is communicated with a plurality of spaces to be supplemented with oxygen through a branch air pipe 6;
a plurality of oxygen supplementing windows 3 are arranged on a wall body 9 of the space to be supplemented with oxygen, the branch gas pipe 6 penetrates through the wall body 9 to be communicated with the oxygen supplementing windows 3, adjacent oxygen supplementing windows 3 are communicated through a pre-buried gas pipe 8, and oxygen generated by the molecular sieve oxygen generating set 1 is injected into the space to be supplemented with oxygen sequentially through the main gas pipe 4, the gas distribution box 2, the branch gas pipe 6 and the oxygen supplementing windows 3;
the bottom of the wall body 9 is provided with a plurality of gas diffusion holes 11, and the gas diffusion holes 11 are used for communicating the inside and the outside of a space to be supplemented with oxygen;
the oxygen concentration sensor 10 is connected with the signal input end of a controller 13 through a signal line 12, and the signal output end of the controller 13 is connected with the controller signals of the main control air valve 5 and the sub-control air valves 7 through the signal line 12.
The molecular sieve oxygen generating unit 1 comprises a plurality of molecular sieve oxygen generating machines with gas paths connected in parallel, the molecular sieve oxygen generating machines are communicated with a high-pressure gas storage chamber, and the high-pressure gas storage chamber is communicated with a main gas pipe 4.
In this embodiment, the gas diffusion holes 11 include a support steel pipe 14 penetrating through the wall 9, an -th filter screen 15 is installed in the support steel pipe 14, the edge of the -th filter screen 15 is provided with a stopper 16, and the stopper 16 is fixedly installed on the inner wall of the support steel pipe 14.
, the gas diffusion holes 11 can discharge waste gas to the outdoor when supplying oxygen, and reduce the carbon dioxide concentration in the room when not supplying oxygen, the bottom of the filter screen 15 inclines inwards, which can prevent dust from accumulating on the filter screen 15 surface quickly, and then blocking, and affect the air exchange efficiency, the block is arranged outside the filter screen 15, and it is ensured that the block will not be loosened by the air flow when exchanging air.
In this embodiment, each of the branch gas pipes 6 is provided with a one-way gas valve 17, the one-way gas valve 17 is arranged between the branch gas control valve 7 and the oxygenating window 3, the oxygenating window 3 includes a hollow box-shaped diffusion gas chamber 18, the diffusion gas chamber 18 is embedded in the inner surface of the wall 9, a second filter screen 19 is arranged in the diffusion gas chamber 18, the diffusion gas chamber 18 is provided with a plurality of diffusion gas holes 20, and the second filter screen 19 separates the connection part of the branch gas pipe 6 and the diffusion gas chamber 18 from the diffusion gas holes 20.
, the one-way valve 17 can ensure the oxygen transportation direction, and the one-way valve is arranged inside the bronchus 6, which increases the protection of the one-way valve 17 and prevents the one-way valve from being blocked.A second filter screen 19 in the diffusion air chamber 18 can not only ensure that dust is not accumulated in the bronchus 6, but also slow down the impact of oxygen airflow, reduce the noise during oxygen supplement and disperse oxygen into the indoor space.
In this embodiment, a hollow air chamber 23 is arranged in the air distribution box 2, an air inlet 22 is arranged in the center of the side of the air distribution box 2, a plurality of air outlets 21 are arranged on the other side and the end faces of the two ends of the air distribution box 2, the air inlet 22 and the air outlets 21 are communicated with the hollow air chamber 23, the air inlet 22 and the air outlets 21 have the same size, the air inlet 22 is communicated with the main air pipe 4, and each air outlet 21 is communicated with branch air pipes 6.
In this embodiment, detachable connectors are installed in the air inlet hole 22 and the air outlet hole 21, each connector includes a rotary connection portion 24, a force application portion 25 and an insertion portion 26, the rotary connection portion 24 and the insertion portion 26 are both cylinders, the force application portion 25 is a regular hexagonal prism, the diameter of an inscribed circle of a horizontal section of the force application portion 25 is larger than the diameters of the rotary connection portion 24 and the insertion portion 26, the force application portion 25 is arranged between the rotary connection portion 24 and the insertion portion 26, the centers of the rotary connection portion 24, the force application portion 25 and the insertion portion 26 are coaxial, threads 27 are arranged on the outer surface of the rotary connection portion 24, multi-stage clamping grooves 28 are arranged on the outer surface of the insertion portion 26, and an air vent is arranged in the center of the connector.
In this embodiment, the -th sealing ring 30 is disposed on the outer edge of the joint between the screwing part 24 and the force application part 25, the second sealing rings 29 are disposed on the slots of the multiple stages of slots 28, the -th sealing ring 30 is fixedly mounted on the bottom surface of the force application part 25, and the second sealing rings 29 are respectively and fixedly mounted on the surfaces of the slots of the multiple stages of slots.
, the arrangement of the air distribution box 2 ensures that the host can carry a plurality of sub-machines.
A control method of an air purification system supporting multi-channel indoor unit intelligent distribution oxygen supplementation by central molecular sieve oxygen generation is characterized in that after the oxygen supplementation of spaces to be supplemented is finished, all the spaces to be supplemented are sorted according to the indoor oxygen concentration, and the space to be supplemented with the lowest oxygen concentration is supplemented with oxygen, and the specific steps are as follows:
step 1, starting a system, closing a sub-control air valve 7 arranged in each bronchus 6, starting a main control air valve 5 arranged in a main air pipe 4, and starting a molecular sieve oxygen generating unit 1;
step 2, acquiring an oxygen concentration data signal in each space to be supplemented with oxygen by an oxygen concentration sensor 10 in each space to be supplemented with oxygen, and sending the data signal into a controller 13;
step 3, when the oxygen concentration in any space to be supplemented is lower than a set value, opening the branch control air valves 7 in the branch air pipes 6 connected with the corresponding space to be supplemented, and closing the branch control air valves 7 in the other branch air pipes 6 at the same time, so that only branch control air valves 7 are opened at the same time of in the process of filling;
step 4, when the oxygen concentration in the rest of the spaces to be supplemented with oxygen, which are not less than , is lower than a set value in the process of oxygenating any spaces to be supplemented with oxygen, sequencing the spaces to be supplemented with oxygen according to the indoor oxygen concentration when the oxygenation of the preceding spaces to be supplemented with oxygen is finished;
and 5, when the current space to be supplemented with oxygen is finished, closing the sub-control air valve 7 in the bronchus 6 connected with the front space to be supplemented with oxygen, and opening the sub-control air valve 7 in the bronchus 6 connected with the space to be supplemented with oxygen with the lowest oxygen concentration.
When the oxygen concentration in the space to be supplemented is lower than the th set value, the space to be supplemented is in the state to be supplemented with oxygen, the th set value range of the indoor oxygen concentration is 20% -22%, when the indoor oxygen concentration in the state to be supplemented with oxygen is larger than the second set value, the oxygen supplementation is stopped, and the second set value range of the indoor oxygen concentration is 28% -30%.
The sorting method for sorting the space to be oxygen-supplemented in the state to be oxygen-supplemented according to the indoor oxygen concentration when the oxygen supplementation of the space to be oxygen-supplemented is finished at the front comprises but is not limited to a selection sorting method, a bubble sorting method, an insertion sorting method, a quick sorting method, a stack sorting method, a merging sorting method, a radix sorting method and a Hill sorting method.
Because the compression ratio of the gas is relatively high, the liquid can not be supplied with multiple pipelines at the same pressure, only a method of supplying gas for only gas circuits within the same time of can be adopted, and the oxygen supply of the waiting oxygen supply space is delayed, so that the set value of the oxygen supply limit is increased, and the situation that the oxygen concentration in the oxygen supply space is too low is ensured.
The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may be made by those skilled in the art without departing from the principle of the invention.

Claims (10)

  1. The air purification system is characterized by comprising a molecular sieve oxygen generating unit (1), wherein the output end of the molecular sieve oxygen generating unit (1) is communicated with an air inlet (22) of an air distribution box (2) through a main air pipe (4), and the air distribution box (2) is communicated with a plurality of spaces to be supplemented with oxygen through a branch air pipe (6);
    a plurality of oxygen supplementing windows (3) are arranged on a wall body (9) of the space to be supplemented with oxygen, the branch air pipes (6) penetrate through the wall body (9) and are communicated with the oxygen supplementing windows (3), adjacent oxygen supplementing windows (3) are communicated through embedded air pipes (8), and oxygen generated by the molecular sieve oxygen generating unit (1) is injected into the space to be supplemented with oxygen sequentially through the main air pipe (4), the gas distribution box (2), the branch air pipes (6) and the oxygen supplementing windows (3);
    the bottom of the wall body (9) is provided with a plurality of gas diffusion holes (11), and the gas diffusion holes (11) are used for communicating the inside and the outside of a space to be supplemented with oxygen;
    the oxygen supplementing device is characterized in that a main control air valve (5) is arranged in the main air pipe (4), a sub-control air valve (7) is arranged in each branch air pipe (6), an oxygen concentration sensor (10) is arranged in each space to be supplemented with oxygen, the oxygen concentration sensor (10) is connected with a signal input end of a controller (13) through a signal line (12), and a signal output end of the controller (13) is connected with the main control air valve (5) and a controller signal of the sub-control air valve (7) through the signal line (12).
  2. 2. The air purification system with the function of supporting the multi-path indoor unit intelligent distribution and oxygen supplementation of the central molecular sieve oxygen generation system as claimed in claim 1, wherein the molecular sieve oxygen generation unit (1) comprises a plurality of molecular sieve oxygen generators with gas paths connected in parallel, the plurality of molecular sieve oxygen generators are communicated with a high-pressure gas storage chamber, and the high-pressure gas storage chamber is communicated with a main gas pipe (4).
  3. 3. The air purification system with oxygen generation support by central molecular sieves and intelligent distribution and oxygen supplement of multi-channel indoor units as claimed in claim 1, wherein the gas diffusion holes (11) comprise support steel pipes (14) penetrating through the wall (9), the support steel pipes (14) are internally provided with filter screens (15) which are obliquely arranged, the outer sides of the edges of the filter screens (15) are provided with stoppers (16), and the stoppers (16) are fixedly arranged on the inner walls of the support steel pipes (14).
  4. 4. The air purification system with oxygen generation support by central molecular sieves and intelligent distribution and oxygen supplementation of multiple indoor units as claimed in claim 1, wherein each branch air pipe (6) is provided with a one-way air valve (17), the one-way air valve (17) is arranged between a branch control air valve (7) and an oxygen supplementation window (3), the oxygen supplementation window (3) comprises a hollow box-shaped diffusion air chamber (18), the diffusion air chamber (18) is embedded in the inner surface of a wall body (9), a second filter screen (19) is arranged in the diffusion air chamber (18), the diffusion air chamber (18) is provided with a plurality of diffusion air holes (20), and the second filter screen (19) separates the connection position of the branch air pipe (6) and the diffusion air chamber (18) from the diffusion air holes (20).
  5. 5. The air purification system with oxygen generation support by central molecular sieves and intelligent distribution and oxygen supplement of multiple indoor units as claimed in claim 1, wherein a hollow air chamber (23) is arranged in the air distribution box (2), an air inlet hole (22) is arranged at the center of side of the air distribution box (2), a plurality of air outlet holes (21) are arranged on the other side and the end faces at the two ends of the air distribution box (2), the air inlet hole (22) and the air outlet hole (21) are communicated with the hollow air chamber (23), the air inlet hole (22) and the air outlet hole (21) are the same in size, the air inlet hole (22) is communicated with the main air pipe (4), and each air outlet hole (21) is communicated with branch air pipes (6).
  6. 6. The air purification system with oxygen generation support by central molecular sieves and intelligent distribution and oxygen supplementation of multi-channel indoor units as claimed in claim 5, wherein detachable connectors are installed in the air inlet hole (22) and the air outlet hole (21), the connectors include a screwing part (24), a force application part (25) and an insertion part (26), the screwing part (24) and the insertion part (26) are both cylinders, the force application part (25) is a regular hexagonal prism, the diameter of an inscribed circle of the horizontal section of the force application part (25) is larger than the diameters of the screwing part (24) and the insertion part (26), the force application part (25) is arranged between the screwing part (24) and the insertion part (26), the centers of the screwing part (24), the force application part (25) and the insertion part (26) are coaxial, the outer surface of the screwing part (24) is provided with threads (27), the outer surface of the insertion part (26) is provided with multi-stage clamping grooves (28), and the center of the connector is provided with a vent hole.
  7. 7. The air purification system with oxygen generation support by central molecular sieves and intelligent distribution and oxygen supplementation of multiple indoor units as claimed in claim 6, wherein a th sealing ring (30) is arranged at the outer edge of the joint of the screwing part (24) and the force application part (25), each stage of the multi-stage clamping grooves (28) is provided with a second sealing ring (29), the th sealing ring (30) is fixedly installed on the bottom surface of the force application part (25), and the second sealing rings (29) are respectively and fixedly installed on the surfaces of the clamping grooves of each stage.
  8. 8. The control method of the air purification system with the central molecular sieve oxygen generation supporting multi-channel indoor set intelligent distribution oxygen supplementation, as claimed in claim 1, is characterized in that after each spaces to be supplemented with oxygen are supplemented with oxygen, all the spaces to be supplemented with oxygen are sorted according to the indoor oxygen concentration, and the space to be supplemented with oxygen with the lowest oxygen concentration is supplemented with oxygen, and the specific steps are as follows:
    step 1, starting a system, closing a sub-control air valve (7) arranged in each branch air pipe (6), opening a main control air valve (5) arranged in a main air pipe (4), and starting a molecular sieve oxygen generating unit (1);
    step 2, acquiring an oxygen concentration data signal in each space to be supplemented with oxygen by an oxygen concentration sensor (10) in each space to be supplemented with oxygen, and sending the oxygen concentration data signal into a controller (13);
    step 3, when the oxygen concentration in any space to be oxygen-supplemented is lower than a set value, opening an internal control air valve (7) of a bronchus (6) connected with the corresponding space to be oxygen-supplemented, and simultaneously closing sub-control air valves (7) in the rest bronchus (6), so that only sub-control air valves (7) are opened at the same time of in the process of nutrition supplement;
    step 4, when the oxygen concentration in the rest of the spaces to be supplemented with oxygen, which are not less than , is lower than a set value in the process of oxygenating any spaces to be supplemented with oxygen, sequencing the spaces to be supplemented with oxygen according to the indoor oxygen concentration when the oxygenation of the preceding spaces to be supplemented with oxygen is finished;
    and 5, when the current space to be supplemented with oxygen is finished, closing the sub-control air valve (7) in the bronchus (6) connected with the front space to be supplemented with oxygen, and opening the sub-control air valve (7) in the bronchus (6) connected with the space to be supplemented with oxygen with the lowest oxygen concentration.
  9. 9. The method as claimed in claim 8, wherein the air purification system with central molecular sieve oxygen generation supporting multi-indoor-unit intelligent distribution of oxygen supply is characterized in that when the oxygen concentration in the space to be oxygen supply is lower than , the space to be oxygen supply is in the state of oxygen supply, the indoor oxygen concentration is , the set value is 20% -22%, when the indoor oxygen concentration in the state of oxygen supply is higher than a second set value, the oxygen supply is stopped, and the second set value of the indoor oxygen concentration is 28% -30%.
  10. 10. The method for controlling the air purification system with the central molecular sieve oxygenerations supporting the multi-channel indoor units to intelligently distribute and supplement oxygen as claimed in claim 8, wherein the sorting method adopted for sorting the space to be supplemented with oxygen in the state to be supplemented with oxygen according to the indoor oxygen concentration at the end of the first space to be supplemented with oxygen comprises but is not limited to a selection sorting method, a bubble sorting method, an insertion sorting method, a quick sorting method, a heap sorting method, a merge sorting method, a radix sorting method and a Hill sorting method.
CN201911097955.2A 2019-11-12 2019-11-12 air purification system with central molecular sieve oxygen generation supporting multi-channel indoor unit intelligent distribution oxygen supplementation Pending CN110736167A (en)

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