CN111948340A - Toxic gas purification system and control method thereof - Google Patents
Toxic gas purification system and control method thereof Download PDFInfo
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- CN111948340A CN111948340A CN202010720498.4A CN202010720498A CN111948340A CN 111948340 A CN111948340 A CN 111948340A CN 202010720498 A CN202010720498 A CN 202010720498A CN 111948340 A CN111948340 A CN 111948340A
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- 239000002341 toxic gas Substances 0.000 title claims abstract description 23
- 238000000746 purification Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 52
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 52
- 239000001301 oxygen Substances 0.000 claims abstract description 52
- 239000007789 gas Substances 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 22
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 16
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 11
- 239000001569 carbon dioxide Substances 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 claims description 6
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 claims description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 claims description 6
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 abstract description 7
- 239000003570 air Substances 0.000 description 78
- 239000003814 drug Substances 0.000 description 10
- 238000009825 accumulation Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000001179 sorption measurement Methods 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 2
- 238000004887 air purification Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XXQBEVHPUKOQEO-UHFFFAOYSA-N potassium superoxide Chemical compound [K+].[K+].[O-][O-] XXQBEVHPUKOQEO-UHFFFAOYSA-N 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000003434 inspiratory effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0036—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions by adsorption or absorption
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0042—SO2 or SO3
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0044—Sulphides, e.g. H2S
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/0047—Organic compounds
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- Chemical & Material Sciences (AREA)
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
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- Medicinal Chemistry (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
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- General Health & Medical Sciences (AREA)
- Food Science & Technology (AREA)
- Immunology (AREA)
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- General Chemical & Material Sciences (AREA)
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- Separation Of Gases By Adsorption (AREA)
Abstract
The invention provides a toxic gas purification system, which comprises a gas monitoring unit, an air purifier and an oxygen generation device, wherein the gas monitoring unit, the air purifier and the oxygen generation device are in communication connection through a communication serial port, the oxygen generation device comprises a third shell, the third shell comprises a hollow cavity, a third air inlet, a third air outlet and an oxygen generation box are arranged in the shell, and the oxygen generation box is arranged in the hollow cavity.
Description
Technical Field
The invention relates to the field of purification systems, in particular to a tunnel toxic gas purification system.
Background
In recent years, mine accidents sometimes occur in China, the mine tunnel is a relatively complex activity place, toxic gases such as carbon monoxide and sulfur dioxide are often filled in the tunnel, once the mine operators work in the tunnel, the toxic gases are inhaled, suffocation is likely to occur within a few minutes, life and health cannot be guaranteed, and a system capable of monitoring the content of the toxic gases in the mine tunnel in real time and timely providing oxygen and timely purifying the toxic gases when the toxic gases exceed standards is urgently needed.
Disclosure of Invention
The present invention provides a toxic gas purification system and a control method thereof.
The technical scheme of the invention is as follows:
a toxic gas purification system comprises
The gas monitor, including on the gas monitor:
the first shell comprises a hollow cavity, and the first shell is provided with a first air inlet and a first air outlet;
a first controller which is a CPU board and is provided in a first housing;
the first fan is arranged in the first shell, is electrically connected with the CPU board and can rotate and suck air by giving instructions through the CPU;
the gas sensor is arranged in the first shell and is electrically connected with the CPU board;
air purifier, air purifier including:
the second shell is provided with a second air inlet and a second air outlet;
a second fan installed in the second housing and rotating to draw in external air from the second air inlet;
the air filter is arranged between the second fan and the second air inlet and can filter air entering from the second air inlet;
the second controller is in communication connection with the first controller;
an oxygen generating device, the oxygen generating device comprising:
the third shell comprises a hollow cavity, and a third air inlet and a third air outlet are formed in the shell;
the oxygen generating box is arranged in the hollow cavity;
the third controller is in communication connection with the first controller;
and a third fan installed in the third casing and corresponding to the third air inlet, and capable of sucking external air from the third air inlet into the third casing by rotation of the third fan.
Further be equipped with the mount pad in the third casing, the mount pad is the cavity structure, and the air vent has been seted up to the mount pad upper end, the system oxygen case is installed in the air vent top, and system oxygen bottom of the case portion is equipped with a plurality of gas pocket, the size of air vent is less than the size of system oxygen case, the inlet scoop has still been seted up to the rear end of mount pad, inlet scoop and air vent UNICOM, and the third air inlet on inlet scoop and the third casing corresponds the setting, the third fan is installed in the inlet scoop inboard for outside air can pass through in the third air inlet gets into the air vent through the inlet scoop.
Further strutting arrangement is installed to casing below, strutting arrangement includes:
the sleeve device comprises a sleeve and a connecting plate, the sleeve is of a hollow structure, the two ends of the sleeve are provided with the connecting plate, and the sleeve is fixedly arranged at the bottom of the shell through the connecting plate;
the supporting tube comprises an inner tube and supporting legs, the supporting legs are installed at one end of the inner tube, the other end of the inner tube is inserted into the sleeve, and the inner tube can rotate and move in the sleeve.
Furthermore, a sliding groove is formed in the sleeve, a fixing pin is installed at one end, inserted into the sleeve, of the inner pipe, the fixing pin is perpendicular to the extending direction of the supporting legs, and the fixing pin is inserted into the sliding groove and can move in the sliding groove along with the movement of the inner pipe.
The sliding groove is further formed right below the sleeve, a section of corner groove is formed in the front end of the sliding groove, the corner groove is perpendicular to the sliding groove, and the fixing pin can be clamped into the corner groove by rotating the inner pipe when moving to the corner groove.
Furthermore, a through groove is formed in the front end of the mounting seat, and a water collecting disc is inserted into the through groove.
Further the casing is square structure, installs the supporting seat on four angles below the casing, just install the gyro wheel on the supporting seat.
Further, pulleys are mounted at two ends of the mounting seat, which are in contact with the inner side of the third shell, pulley grooves are formed in the inner side of the third shell, which is in contact with the mounting seat, and the pulleys are embedded in the pulley grooves and can roll in the pulley grooves.
The invention also provides a control method of the toxic gas purification system, which comprises the following steps:
the method comprises the following steps:
step 1: a first controller in the gas monitor controls a first fan to rotate and sucks external air into a first shell through a first air suction port;
step 2: the external air passes through the gas sensor, and the gas sensor feeds back the detected content of each component in the external air to the first controller;
and step 3: the first controller compares the content of the components with the highest value of the content of each component input in advance;
and 4, step 4: if the detected content is higher than the highest value of the content of each component through comparison, the control signal is sent to the second controller and the third controller;
and 5: the second controller and the third controller turn on the second fan and the third fan according to the input control signal.
The gas sensor is one or a combination of several of an oxygen sensor, a carbon dioxide sensor, a hydrogen sulfide sensor, a sulfur dioxide sensor, a nitrogen dioxide sensor and a carbon monoxide sensor.
The invention has the technical effects that:
1. the utility model provides a clean system with monitoring function, including oxygen generating device and air purification device in the system to the controller and the gas monitoring appearance communication of above-mentioned device are connected, can realize real-time linkage, and when the gas monitoring appearance monitoring out toxic gas content was higher, oxygen generating device and air purification device opened automatically and carry out purification treatment to the air.
2. Install the oxygen-making medical kit among the oxygen generating device, generally the oxygen-making medical kit is all heavier, can be because casing itself is lighter when putting into the third casing again with the oxygen-making medical kit, when the installation take place casing slope or casing deformation, above-mentioned oxygen generating device third casing bottom installs strutting arrangement, can open strutting arrangement earlier when the installation medical kit, then installs again, and the most weight of medical kit this moment has all been shared by strutting arrangement, and it is more convenient to install.
3. The oxygen generating device is internally provided with the mounting seat which can be pulled out, the mounting seat is provided with the air suction opening and the air vent, and the air suction opening and the air vent are communicated in parallel to form a ventilation channel, so that the third fan can convey external air into the oxygen generating medicine box for conversion when rotating to suck air, and meanwhile, the mounting seat is arranged to be a draw-out type oxygen generating medicine box which is more convenient to install.
4. The installation seat is also provided with a water accumulation plate, so that moisture formed in the process of oxygen conversion can be accumulated in the water accumulation plate, and the service life of the oxygen generation device is prolonged.
Drawings
FIG. 1 is a schematic view of a gas monitor;
FIG. 2 is a schematic perspective view of an oxygen generating device;
FIG. 3 is a left side view of the oxygen generating device;
FIG. 4 is a schematic view of the installation of the sleeve and the connection plate;
FIG. 5 is a schematic view of a support tube;
FIG. 6 is a schematic view of the support assembly;
FIG. 7 is a front view of the mount;
FIG. 8 is a front view of the purifier;
FIG. 9 is a left side view of the purifier;
FIG. 10 is a control flow diagram of a gas monitor;
fig. 11 is a control flowchart of the purification system.
Wherein: the oxygen making machine comprises a first air inlet 31, a first shell 32, a gas sensor 33, a first fan 34, a first controller 35, a first air outlet 36, a third shell 1, a first display screen 2, an oxygen making medicine box 3, a mounting seat 4, a water accumulation disc 5, an air vent 6, a third fan 7, a third controller 8, a support pipe 9, a sleeve pipe device 10, a third air inlet 11, a third air outlet 101, an air suction inlet 401, a support seat 102, a roller 103, a closing door 104, a gas filter 220, a second fan 24, a second air inlet 25, a second display screen 26, a second air outlet 27 and a second controller 28;
the sleeve device 10 comprises a connecting plate 110, a sleeve 210, a sliding groove 310 and a corner groove 410;
the support tube 9 includes an inner tube 91, a support leg 92, and a fixing pin 93;
the gas filter 220 includes a primary filter 21, a high-efficiency filter 22, and an adsorption filter 23.
Detailed Description
For better understanding of the technical solutions of the present invention, the present invention will now be explained in detail with reference to the accompanying drawings, it should be understood that "first", "second", and "third" in the present invention are used for distinguishing technical features, and there is no order limitation, and "connection" in the present invention may be direct connection or "indirect connection", where "front" end is a direction toward a person in the drawings, and "rear" end is an opposite direction.
As shown in fig. 1, fig. 1 is a schematic view of a gas monitor, the gas monitor includes a first housing 32, a first air inlet 31 and a first air outlet 36 are opened at two ends of the first housing 32, a first fan 34 is installed inside the first air inlet 31 and inside the first housing 32, a gas sensor 33 is installed between the first fan 34 and the first air inlet 31, and a first controller 35 is also installed inside the first housing 32, it should be understood that the above features are only necessary technical features of the gas monitor, a communication serial port (not shown in the figure) for communication should be further included, the first fan 34 can rotate to suck in external air from the first air inlet 31, the gas sensor 33 can detect the gas content of the external air, and the gas sensor 33 here can include an oxygen sensor, a carbon dioxide sensor, a hydrogen sulfide sensor, a sulfur dioxide sensor, One of the nitrogen dioxide sensor and the carbon monoxide sensor, or the combination of the above sensors can be selected according to the environment;
as shown in fig. 2-7, the oxygen generating device includes a third casing 1, a third air inlet 11 and a third air outlet 101 are provided on the third casing 1, a third controller 8 is further installed in the third casing 1, a communication serial port (not shown in the figure) is also provided on the third controller 8 and is in communication connection with the first controller 35, a mounting seat 4 is installed in the third casing 1, the inside of the mounting seat 4 is a cavity structure, an air vent 6 is provided at the upper end of the mounting seat 4, an oxygen generating medicine box 3 is provided on the mounting seat 4, a plurality of air holes are provided at the bottom end of the oxygen generating medicine box 3, the oxygen generating medicine plate inside the oxygen generating medicine box 3 is mainly potassium superoxide, it should be understood that the structure of the oxygen generating device is mainly protected here, the oxygen generating method can adopt the method in the prior art, an air suction port 401 is provided at the rear end of the mounting seat 4, the air suction port 401 is, the third fan 7 is installed to the inboard of inlet scoop 401 promptly mount pad 4 internally mounted, and third air inlet 11 and inlet scoop 401 and air vent 6 form with the inspiratory channel, and third fan 7 is rotatory promptly can be through third air inlet 11 with outside air suction and through inlet scoop 401 through air vent 6 get into the inside of oxygenerator box 3 and mix thereby form oxygen with the composition of the inside.
Because the oxygen-making medicine box 3 is generally heavier and inconvenient to install, and particularly the third shell 1 is easy to incline when being installed, a supporting device is installed at the lower end of the third shell 1, the supporting device comprises a sleeve device 10 and a supporting tube 9, the sleeve device 10 comprises a connecting plate 110 and a sleeve 210, the sleeve 210 is a hollow pipeline, the connecting plate 110 is installed at two ends of the sleeve 210, it should be understood that the installation mode can be welding or other modes, the description is omitted because the prior art is omitted, the connecting plate 110 is provided with a screw hole and connects the sleeve device to the bottom end of the first shell 1 through a bolt, the supporting tube 9 comprises an inner tube 91 and a supporting leg 92 connected to one end of the inner tube 91, the inner tube 91 is sleeved in the sleeve 210, for limiting, one end of the inner tube 91, which is not provided with the fixing pin 93, the sleeve 210 is provided with a sliding groove 310, the fixing pin 93 is inserted in the sliding groove 310, the fixing pin 93 can slide in the sliding groove 310, the sliding groove 310 is arranged at the lowest end of the sleeve 210, the front end of the sliding groove 310 is provided with a corner groove 410, the depth of the corner groove 410 is determined according to the size of the fixing pin 93, the corner groove 410 is perpendicular to the sliding groove 310, and the fixing pin 93 is perpendicular to the length extending direction of the supporting leg 92, so that the supporting leg 92 is not perpendicular to the ground when the supporting tube 9 is not used, the carrying of the oxygen generating device is not interfered, when the oxygen generating medicine box needs to be installed, the inner tube is pulled outwards, when the fixing pin 93 is pulled back to the corner groove 410, the fixing pin 93 is clamped into the corner groove 410 by rotating the inner tube 91, the supporting leg 92 can be put in a state perpendicular to the ground, and at this time, the supporting leg 92 can provide a supporting force to prevent the third, in addition, in order to facilitate assembly, pulleys (not shown) can be installed at two ends of the mounting seat, which are in contact with the inner side of the third shell, pulley grooves are formed in the inner side of the third shell, which is in contact with the mounting seat, the pulleys are embedded in the pulley grooves and can roll in the pulley grooves (not shown), a through groove is further formed in the front end of the mounting seat 4, a water accumulation plate 5 is inserted in the through groove, the water accumulation plate 5 is mainly used for accumulating condensed water generated in the oxygen generation process, so that the service life of the equipment is longer, the first shell 1 can be designed to be of a square structure, and the supporting seat 102 can be installed at four corners of the bottom end of the first shell.
The front end of the oxygen making medicine box 3 is also provided with a closing door 104, the closing door 104 is hinged with one end of the third shell 1, and two closing doors are schematically shown in the figure for matching use.
As shown in fig. 8-9, the air purifier includes a second housing 29, a second air inlet 25 is disposed at the front end of the second housing 29, a second air outlet 27 is further disposed on the second housing 29, a gas filter is disposed inside the second air inlet 25, the gas filter is a three-layer filter including a primary filter 21, a high efficiency filter 22, and an adsorption filter 23, the primary filter 21 has a pore size not larger than 4mm × 4mm and is capable of filtering larger impurities, the secondary filter is used for filtering particles with smaller diameter and mainly comprises filter fibers, the adsorption filter 23 is mainly formed by mixing activated carbon and molecular sieve in a ratio of 20:1, and is capable of purifying harmful gases such as ammonia gas, sulfur dioxide, nitrogen dioxide, hydrogen sulfide, methyl mercaptan, methyl sulfide, and the like in ambient air, a second fan 24 is disposed at the rear end of the gas filter, the second fan 24 acts on the above fans similarly, and will not be described herein again, and the second casing 29 is further provided with a second controller 28, and the second controller 28 is in communication connection with the first controller 35, it should be understood that the above air purifier is only a necessary feature of the present embodiment, and may further include other purification means such as a photocatalytic module.
The invention also provides a control method of the toxic gas purification system, as shown in fig. 10, a first controller (CPU board) is electrically connected with each sensor, AC220V is converted into DC12V by a switching power supply to supply power to the first controller, after the first controller is powered on, the operation of the air suction fan is controlled, air outside the first shell is sucked into the first shell, meanwhile, the first controller heats the oxygen sensor for 60s, after the heating time is up, the oxygen sensor detects the content of the air sucked by the air suction fan, and other sensors comprise a carbon dioxide sensor, a hydrogen sulfide sensor, a sulfur dioxide sensor, a nitrogen dioxide sensor, a VOC sensor, an LEL sensor and a carbon monoxide sensor to detect the content of the air, a touch screen is further arranged in the gas monitor and is connected with the first controller 35 through an RS485 communication serial port, the currently measured value can be displayed on the touch screen, meanwhile, when the content of oxygen in the air is detected to be lower than 18% or the content of carbon dioxide is detected to be higher than 15000ppm, and the content of other harmful gases is detected to be higher than the alarm value, the first controller 35 can also control a buzzer in the gas monitor to alarm, compared with the set oxygen content alarm value (18%), the carbon dioxide alarm value (15000 ppm), the carbon dioxide alarm value (30 ppm), the sulfur dioxide alarm value (5.0 ppm), the carbon dioxide alarm value (30 ppm), the VOC alarm value (10.0 ppm), the hydrogen sulfide (5.0 ppm), the nitrogen dioxide (5.0 ppm) and the LEL (5.0%).
As shown in fig. 11, the control method flow includes the following steps:
step 1 firstly, external air is sucked into the monitor through the gas monitor.
Step 2: the external air passes through the gas sensor, and the gas sensor feeds back the detected content of each component in the external air to the first controller;
and step 3: the first controller compares the content of the components with the highest value of the content of each component input in advance
An example is provided below, in which an oxygen content alarm value (18%), a carbon dioxide alarm value (15000 ppm), a carbon dioxide alarm value (30 ppm), a sulfur dioxide alarm value (5.0 ppm), and a carbon dioxide alarm value (30 ppm) are set during normal use.
And 4, step 4: if the detected content is higher than the highest value of the content of each component through comparison, the control signal is sent to the second controller and the third controller;
and 5: the second controller and the third controller turn on the second fan and the third fan according to the input control signal.
In fig. 11, two oxygen generators and two air purifiers are used, and RS485 is used for real-time communication between the controllers.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A toxic gas purification system, comprising
The gas monitor, including on the gas monitor:
the first shell comprises a hollow cavity, and the first shell is provided with a first air inlet and a first air outlet;
a first controller which is a CPU board and is provided in a first housing;
the first fan is arranged in the first shell, is electrically connected with the CPU board and can rotate and suck air by giving instructions through the CPU;
the gas sensor is arranged in the first shell and is electrically connected with the CPU board;
air purifier, air purifier including:
the second shell is provided with a second air inlet and a second air outlet;
a second fan installed in the second housing and rotating to draw in external air from the second air inlet;
the air filter is arranged between the second fan and the second air inlet and can filter air entering from the second air inlet;
the second controller is in communication connection with the first controller;
an oxygen generating device, the oxygen generating device comprising:
the third shell comprises a hollow cavity, and a third air inlet and a third air outlet are formed in the shell;
the oxygen generating box is arranged in the hollow cavity;
the third controller is in communication connection with the first controller;
and a third fan installed in the third casing and corresponding to the third air inlet, and capable of sucking external air from the third air inlet into the third casing by rotation of the third fan.
2. The toxic gas purification system of claim 1, wherein a mounting seat is disposed in the third housing, the mounting seat is of a cavity structure, an air vent is disposed at an upper end of the mounting seat, the oxygen generation tank is mounted above the air vent, a plurality of air holes are disposed at a bottom of the oxygen generation tank, the size of the air vent is smaller than that of the oxygen generation tank, an air suction opening is further disposed at a rear end of the mounting seat, the air suction opening is communicated with the air vent, the air suction opening is disposed corresponding to a third air inlet on the third housing, and the third fan is mounted inside the air suction opening, so that external air can enter the air vent through the air suction opening via the third air inlet.
3. The toxic gas purification system of claim 2, wherein a support device is mounted below the housing, the support device comprising:
the sleeve device comprises a sleeve and a connecting plate, the sleeve is of a hollow structure, the two ends of the sleeve are provided with the connecting plate, and the sleeve is fixedly arranged at the bottom of the shell through the connecting plate;
the supporting tube comprises an inner tube and supporting legs, the supporting legs are installed at one end of the inner tube, the other end of the inner tube is inserted into the sleeve, and the inner tube can rotate and move in the sleeve.
4. The toxic gas purification system of claim 3, wherein the sleeve is provided with a sliding groove, one end of the inner tube inserted into the sleeve is provided with a fixing pin, the fixing pin is perpendicular to the extending direction of the support leg, and the fixing pin is inserted into the sliding groove and can move in the sliding groove along with the movement of the inner tube.
5. The toxic gas purification system of claim 4, wherein the sliding groove is formed right under the sleeve, and a corner groove is formed at the front end of the sliding groove, and the corner groove is perpendicular to the sliding groove, so that the fixing pin can be locked into the corner groove by rotating the inner tube when the fixing pin moves into the corner groove.
6. The toxic gas purification system of claim 2, wherein a through groove is further formed at the front end of the mounting seat, and a water collecting tray is inserted into the through groove.
7. The toxic gas purifying system of claim 2, wherein the housing has a square shape, four corners of the lower portion of the housing are provided with supporting seats, and the supporting seats are provided with rollers.
8. The toxic gas purification system of claim 6, wherein pulleys are installed at two ends of the mounting seat contacting with the inner side of the third housing, pulley grooves are formed on the inner side of the third housing contacting with the mounting seat, and the pulleys are embedded in the pulley grooves and can roll in the pulley grooves.
9. A method for controlling a toxic gas purification system according to any one of the preceding claims: the method is characterized in that: comprises the following steps
Step 1: a first controller in the gas monitor controls a first fan to rotate and sucks external air into a first shell through a first air suction port;
step 2: the external air passes through the gas sensor, and the gas sensor feeds back the detected content of each component in the external air to the first controller;
and step 3: the first controller compares the content of the components with the highest value of the content of each component input in advance;
and 4, step 4: if the detected content is higher than the highest value of the content of each component through comparison, the control signal is sent to the second controller and the third controller;
and 5: the second controller and the third controller turn on the second fan and the third fan according to the input control signal.
10. The method of claim 9, wherein the gas sensor is one or more of an oxygen sensor, a carbon dioxide sensor, a hydrogen sulfide sensor, a sulfur dioxide sensor, a nitrogen dioxide sensor, and a carbon monoxide sensor.
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| CN202010720498.4A CN111948340A (en) | 2020-07-24 | 2020-07-24 | Toxic gas purification system and control method thereof |
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| CN202010720498.4A CN111948340A (en) | 2020-07-24 | 2020-07-24 | Toxic gas purification system and control method thereof |
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Application publication date: 20201117 |