CN109916790A - A kind of interior PM2.5 concentration distribution detection system - Google Patents
A kind of interior PM2.5 concentration distribution detection system Download PDFInfo
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- CN109916790A CN109916790A CN201910283091.7A CN201910283091A CN109916790A CN 109916790 A CN109916790 A CN 109916790A CN 201910283091 A CN201910283091 A CN 201910283091A CN 109916790 A CN109916790 A CN 109916790A
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Abstract
The invention discloses a kind of interior PM2.5 concentration distribution detection systems, it is related to room air detection technique field, the present invention is by the way of inertial separation, big particulate matter after inertial separation air flue can it is larger due to inertia and directly from separation branch airway from spray, and for little particle this for PM2.5, it can enter in detection air flue, be detected for detection probe, equipment reliability of operation is improved, bulky grain is prevented to be adhered to the problem in detection probe；The present invention is provided with cleaning structure, it is cleaned using the reversion of blower, the cleaning treatment to detection probe may be implemented, the accuracy of its detection is improved, meanwhile, the present invention is using chimeric detachable structure, it is convenient that cleaning treatment is carried out to entire sensor element, moreover, probe will not be touched, the damage to probe is prevented.
Description
Technical field
The present invention relates to room air detection technique field, specifically a kind of interior PM2.5 concentration distribution detection system.
Background technique
PM2.5 detector is all to be shunted the vertical son of PM2.5 and other suspended particulate substances using several methods at present, is then made
It is measured with light sensing probe.This structure, since the particle in air-flow is for a long time with after probe contacts, detecting head surface can glue
Knot and excessive particle are attached to probe above and will affect this to PM2.5 for some large particles
The accuracy in detection of small particle, this results in using rear detection accuracy lower for a long time, due to indoor PM2.5 detector point
Cloth indoors, is generally used for carrying out feedback control to ventilation cleaning equipment, once detects existing mistake, will lead to logical
The control of wind cleaning equipment loses accuracy, leads to the work disorder of ventilation cleaning equipment, influences its working effect, loses purification and make
With.
Therefore, the present invention provides a kind of interior PM2.5 concentration distribution detection systems, to solve to mention in above-mentioned background technique
Out the problem of.
Summary of the invention
The purpose of the present invention is to provide a kind of interior PM2.5 concentration distribution detection systems, to solve above-mentioned background technique
The problem of middle proposition.
To achieve the above object, the invention provides the following technical scheme: a kind of interior PM2.5 concentration distribution detection system,
Including linear installing mechanism, PM.2.5 sensor and data processing controller, wherein the linear installing mechanism is along its length
Direction is mounted on indoor position to be detected, at least one described PM.2.5 sensor moves the setting of adjusting position described
On linear installing mechanism, and it is removable along the extending direction of linear installing mechanism；It is characterized in that,
The side of the PM.2.5 sensor is provided with air inlet, the PM.2.5 sensor be internally provided with it is described
Inertial separation air flue, separation branch airway and the detection air flue of air inlet connection；Wherein, the inertial separation air flue is separated with described
Branch airway is directly connected on the airintake direction of the air inlet, and each position of inertial separation air flue is in the extended surface of air inlet
On projection at least have a part mutual with the projection for separating each position of branch airway on the extended surface of air inlet
Overlapping；
The inertial separation air flue is provided with the detection gas being connected to the two with the junction between branch airway is separated
Road, the detection air flue tilt down extension, and the extension angle of the detection air flue and cross section be arranged so that air-flow from
After air inlet enters inertial separation air flue, bulky grain by the separation branch airway progress inertial separation, and PM.2.5 particle into
Enter in the detection air flue；
The detection probe detected to PM.2.5 is provided in the detection air flue；
Ventilating fan on the inside of the detection probe and air inlet, which is controlled with the data processing controller, to be connected.
Further, it preferably, further including carrying out clean cleaning structure to detection probe, is set on the inside of the air inlet
It is equipped with ventilating fan, the PM.2.5 sensor internal, which is located at below the ventilating fan to be additionally provided with, constitutes the cleaner
The cleaning air flue of structure, the cleaning air flue extend after extending downwardly to the position of the detection probe, and the cleaning air flue
Outlet side is just aligned the detection probe；The ventilating fan can positive and negative rotation, the ventilating fan structure be set as rotate forward when, can
So that inertial separation air flue described in air flow direction；When ventilating fan reversion, air-flow enters the cleaning air flue, and sprays
On to the detection probe.
Further, preferably, one section of cross-sectional area of the cleaning air flue towards the detection probe be less than it is described
Air flue is cleaned close to the cross-sectional area of ventilating fan side.
Further, preferably, the PM.2.5 sensor is dismountable structure comprising rear cover, fan seat, separation
Air flue seat, cleaning substructure and separating opening seat, wherein in the separation air flue seat setting inertial separation air flue with separate branch gas
Road, the rear side insertion of the separation air flue seat are connected with the fan seat, and the rear end of the fan seat connects the rear cover, air inlet
Mouthful be located at it is described after cover, the bottom of the separation air flue seat is provided with the cleaning substructure, the cleaning substructure with described point
It is set as the detection air flue from structure between air flue seat, the front end insertion of the separation air flue seat is provided with the separating opening seat, point
It is located on the separating opening seat from the outlet side of branch airway.
Further, preferably, the position setting of the installation blower of the fan seat is fluted, the air intake blower fan is located at
In the groove, the cleaning air flue is connected to the groove.
Further, preferably, the linear installing mechanism includes two groups of locating rods, the opposite side of two groups of locating rods is opened
Equipped with sliding slot, the bottom of the PM.2.5 sensor is fixedly connected with locating piece, and the locating piece is located between two groups of locating rods,
The two sides of the locating piece offer mounting groove, and the inner wall of the mounting groove is fixedly connected with spring, the side of the spring
It is fixedly connected with fixture block, the fixture block is slidably connected with sliding slot, and the two sides of the locating rod are plugged with fixing sleeve, the fixation
The both ends of set are fixedly connected to latch, and the bottom of the latch is provided with anchor ear, the data processing controller it is defeated
Outlet is electrically connected with alarm.
Further, preferably, one end of the locating rod is fixedly connected with inserted link, the other end of the locating rod is opened up
There are jack, the inserted link and jack grafting.
Further, preferably, the shape of the fixture block is right-angled trapezium, and block is provided between fixture block and spring.
Further, preferably, the data processing controller includes to include central processing unit, ROM preset module
And data comparator, the input terminal of the central processing unit and A/D converter output end are electrically connected, the central processing unit with
The output end of the two-way electrical connection of ROM preset module, the ROM preset module is electrically connected with the input terminal of data comparator, described
Data comparator with central processing unit is two-way is electrically connected.
Further, preferably, the output end of the data processing controller is connected with computer by wireless network signal
Host, the data processing controller control the ventilating fan and the work of detection probe cyclical intermission.
Make compared with prior art, the beneficial effects of the present invention are:
1, the present invention by the way of inertial separation, big particulate matter after inertial separation air flue can due to inertia compared with
It is sprayed from separation branch airway greatly and directly, and for little particle this for PM2.5, it can enter in detection air flue, for detection
Probe is detected, and improves equipment reliability of operation, bulky grain is prevented to be adhered to the problem in detection probe；
2, the present invention is provided with cleaning structure, is cleaned, is may be implemented to the clear of detection probe using the reversion of blower
Clean processing improves the accuracy of its detection, meanwhile, the present invention is convenient to entire sensor portion using chimeric detachable structure
Part, which carries out cleaning treatment, prevents the damage to probe moreover, probe will not be touched；
3, the present invention is by two groups of locating rods of setting, will when needing the concentration distribution to indoor PM2.5 to detect
The both ends of two groups of locating rods are fixedly set in, then latch are fixed on metope using fasteners such as screws, or pass through spiral shell
Latch and anchor ear are stuck on rod-shaped object by nail, can provide place for the installation of PM2.5 sensor, need to only be passed PM2.5
Sensor is stuck between two groups of locating rods, and when needing to carry out position adjustment to PM2.5 sensor, can be pushed directly on
PM2.5 sensor, moves it along locating rod, and adjustment position is very convenient, and at most need to only leave at metope both ends
Trace, later maintenance are more convenient；
It 4, only need to be by locating piece between two groups of locating rods, then when PM2.5 sensor to be installed in locating rod
Press PM2.5 sensor, fixture block is squeezed and will make spring deformation occurs at this time, when locating piece extend into two groups of locating rods it
Between when, spring squeezes fixture block, be stuck in fixture block inside sliding slot, so that PM2.5 sensor be made to be fixed, so that it will not with positioning
Bar is detached from easily, and when needing to remove PM2.5 sensor, the fixing sleeve of one end is removed, and PM2.5 sensor is sliding from edge
Out；
5, by the way that PM2.5 sensor is arranged indoors, the PM2.5 concentration in indoor different region can be detected, and
It will test result and be transferred to central processing unit, data are handled by central processing unit, number will test by data comparator
It is compared according to the normal concentration value set with ROM preset module, if PM2.5 concentration over-standard, the report of central processing unit control at this time
Alert device sounds, and to remind PM2.5 concentration over-standard in occupant room, while correlation data is transferred to host computer by central processing unit
On, occupant can intuitively check the PM2.5 concentration of indoor each region by host computer, arrange timely to make reply
It applies.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of interior PM2.5 concentration distribution detection system；
Fig. 2 is a kind of structural schematic diagram of PM2.5 sensor in interior PM2.5 concentration distribution detection system；
Fig. 3 is the enlarged drawing in a kind of interior PM2.5 concentration distribution detection system Fig. 1 at A；
Fig. 4 is the enlarged drawing in a kind of interior PM2.5 concentration distribution detection system Fig. 1 at B；
Fig. 5 is a kind of system flow chart of interior PM2.5 concentration distribution detection system；
Fig. 6 is a kind of PM2.5 sensor structure schematic diagram of interior PM2.5 concentration distribution detection system.
Specific embodiment
Please refer to Fig. 1~6, in the embodiment of the present invention, a kind of interior PM2.5 concentration distribution detection system, including linearly pacify
Mounting mechanism, PM2.5 sensor 2 and data processing controller 8, wherein the linear installing mechanism is installed along its length direction
Position to be detected indoors, at least one described PM2.5 sensor 2 move the setting of adjusting position in the linear installation
In mechanism, and it is removable along the extending direction of linear installing mechanism；It is characterized in that,
The side of the PM2.5 sensor 2 is provided with air inlet 19, the PM2.5 sensor 2 be internally provided with and institute
State the inertial separation air flue, separation branch airway 22 and detection air flue 23 of the connection of air inlet 19；Wherein, the inertial separation air flue with
The separation branch airway 22 is directly connected on the airintake direction of the air inlet, and each position of inertial separation air flue is in air inlet
Projection on the extended surface of mouth at least has with the projection for separating each position of branch airway 22 on the extended surface of air inlet
Some is overlapped；
The inertial separation air flue is provided with the detection being connected to the two with the junction between branch airway 22 is separated
Air flue 23, the detection air flue 23 tilts down extension, and the extension angle of the detection air flue and cross section are arranged so that
After air-flow enters inertial separation air flue from air inlet, bulky grain is by the separation branch airway 22 progress inertial separation, and PM2.5
Particle enters in the detection air flue 23；
The detection probe 21 detected to PM2.5 is provided in the detection air flue 23；
Ventilating fan on the inside of the detection probe 21 and air inlet, which is controlled with the data processing controller 8, to be connected.
In the present embodiment, the invention also includes carrying out clean cleaning structure to detection probe 21, the air inlet
Inside is provided with ventilating fan 25, and the PM2.5 sensor 2, which is internally located at below the ventilating fan to be additionally provided with, constitutes institute
The cleaning air flue 27 of cleaning mechanism is stated, the cleaning air flue extends after extending downwardly to the position of the detection probe 21, and institute
The outlet side for stating cleaning air flue is just aligned the detection probe；The ventilating fan can positive and negative rotation, the ventilating fan structure sets
When to rotate forward, inertial separation air flue described in air flow direction is enabled to；When ventilating fan reversion, air-flow enters described clear
Clean air flue, and spray to the detection probe.
Wherein, it is close to be less than the cleaning air flue for one section of cross-sectional area of the cleaning air flue towards the detection probe
The cross-sectional area of ventilating fan side.
As preferred embodiment, the PM2.5 sensor 2 is dismountable structure comprising rear cover 18, fan seat
17, air flue seat 16, cleaning substructure 24 and separating opening seat 20 are separated, wherein the setting inertia point in the separation air flue seat 16
From air flue with separate branch airway 22, the rear side insertion of the separation air flue seat is connected with the fan seat, after the fan seat
End connects the rear cover 18, air inlet be located at it is described after cover, the bottom of the separation air flue seat 16 is provided with the cleaning bottom
Seat 24, the cleaning substructure separate structure between air flue seat and are set as the detection air flue with described, the front end of the separation air flue seat
Insertion is provided with the separating opening seat 20, and the outlet side of separation branch airway 22 is located on the separating opening seat.
In the present invention, the position setting fluted 26 of the installation blower of the fan seat 17, the air intake blower fan is located at
In the groove, the cleaning air flue 27 is connected to the groove.
Wherein, the linear installing mechanism includes two groups of locating rods 1, and the opposite side of two groups of locating rods 1 offers sliding slot
3, the bottom of the PM2.5 sensor 2 is fixedly connected with locating piece 4, and the locating piece 4 is located between two groups of locating rods 1, described
The two sides of locating piece 4 offer mounting groove 5, and the inner wall of the mounting groove 5 is fixedly connected with spring 6, the side of the spring 6
It is fixedly connected with fixture block 7, the fixture block 7 is slidably connected with sliding slot 3, and the two sides of the locating rod 1 are plugged with fixing sleeve 9, institute
The both ends for stating fixing sleeve 9 are fixedly connected to latch 10, and the bottom of the latch 10 is provided with anchor ear 11, at the data
The output end of reason controller 8 is electrically connected with alarm 12.One end of the locating rod 1 is fixedly connected with inserted link 13, described fixed
The other end of position bar 1 offers jack 14, the inserted link 13 and 14 grafting of jack.
The shape of the fixture block 7 is right-angled trapezium, and is provided with block between fixture block 7 and spring 6.
The data processing controller 8 include include central processing unit 81, ROM preset module 82 and data comparator
83, the input terminal and A/D converter output end of the central processing unit 81 are electrically connected, and the central processing unit 81 and ROM is pre-
The two-way electrical connection of module 82 is set, the output end of the ROM preset module 82 is electrically connected with the input terminal of data comparator 83, described
Data comparator 83 with central processing unit 81 is two-way is electrically connected.
Wherein, the output end of the data processing controller 8 is connected with host computer 15 by wireless network signal, described
Data processing controller 8 controls the ventilating fan and the work of detection probe cyclical intermission.
Linear installing mechanism of the invention, when needing the concentration distribution to indoor PM2.5 to detect, by fixing sleeve
9 are mounted in the both ends of two groups of locating rods 1, then latch 10 are fixed on metope using fasteners such as screws, or pass through screw
Latch 10 and anchor ear 11 are stuck on rod-shaped object, place can be provided for the installation of PM2.5 sensor 2, it only need to be by PM2.5
Sensor 2 is stuck between two groups of locating rods 1, and when needing to carry out position adjustment to PM2.5 sensor 2, can directly be pushed away
Dynamic PM2.5 sensor 2, moves it along locating rod 1, and adjustment position is very convenient, and at most only need to be at metope both ends
Leave a trace, later maintenance is more convenient, when PM2.5 sensor 2 is installed in locating rod 1, only need to by locating piece 4 to
Between two groups of locating rods 1, PM2.5 sensor 2 is then pressed, fixture block 7 is squeezed and will make spring 6 deformation occurs at this time, when
When locating piece 4 is extend between two groups of locating rods 1, spring 6 squeezes fixture block 7, is stuck in fixture block 7 inside sliding slot 3, to make
PM2.5 sensor 2 is fixed, so that it will not be detached from easily with locating rod 1, when needing to remove PM2.5 sensor 2, by one
The fixing sleeve 9 at end is removed, and PM2.5 sensor 2 is skidded off from edge.
It is above-described, it is merely preferred embodiments of the present invention, but protection scope of the present invention is not limited to
This, anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention
And its inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of interior PM2.5 concentration distribution detection system, including linear installing mechanism, PM2.5 sensor (2) and data processing
Controller (8), wherein the linear installing mechanism is mounted on indoor position to be detected along its length direction, at least one
The PM2.5 sensor (2) moves the setting of adjusting position on the linear installing mechanism, and along linear installing mechanism
Extending direction it is removable；It is characterized in that,
The side of the PM2.5 sensor (2) is provided with air inlet (19), the PM2.5 sensor (2) be internally provided with
Inertial separation air flue, separation branch airway (22) and detection air flue (23) of air inlet (19) connection；Wherein, the inertia point
It is directly connected on the airintake direction of the air inlet from air flue with the branch airway (22) that separates, and inertial separation air flue is each
Position the projection on the extended surface of air inlet with described branch airway (22) each position that separates on the extended surface of air inlet
Projection at least has a part of overlapped；
The inertial separation air flue is provided with the detection gas being connected to the two with the junction between branch airway (22) is separated
Road (23), the detection air flue (23) tilts down extension, and the extension angle of the detection air flue and cross section are set as making
After air-flow enters inertial separation air flue from air inlet, bulky grain by the separation branch airway (22) progress inertial separation, and
PM2.5 particle enters in the detection air flue (23)；
The detection probe (21) detected to PM2.5 is provided in detection air flue (23)；
Ventilating fan on the inside of the detection probe (21) and air inlet, which is controlled with the data processing controller (8), to be connected.
2. a kind of interior PM2.5 concentration distribution detection system according to claim 1, which is characterized in that further include to inspection
Probing head (21) carries out clean cleaning structure, is provided with ventilating fan (25) on the inside of the air inlet, the PM2.5 sensing
Device (2) is internally located at and is additionally provided with the cleaning air flue (27) for constituting the cleaning mechanism below the ventilating fan, described clear
Clean air flue extends after extending downwardly to the position of the detection probe (21), and the outlet side of the cleaning air flue is just aligned institute
State detection probe；The ventilating fan can positive and negative rotation, the ventilating fan structure be set as rotate forward when, enable to described in air flow direction
Inertial separation air flue；When ventilating fan reversion, air-flow enters the cleaning air flue, and sprays to the detection probe
On.
3. a kind of interior PM2.5 concentration distribution detection system according to claim 2, which is characterized in that the cleaning gas
One section of cross-sectional area of road towards the detection probe is less than the cleaning air flue close to the cross-sectional area of ventilating fan side.
4. a kind of interior PM2.5 concentration distribution detection system according to claim 2, which is characterized in that the PM2.5 is passed
Sensor (2) be dismountable structure comprising rear cover (18), fan seat (17), separation air flue seat (16), cleaning substructure (24) and
Separating opening seat (20), wherein in the separation air flue seat (16) the setting inertial separation air flue with separate branch airway (22), institute
The rear side insertion for stating separation air flue seat is connected with the fan seat, and the rear end of the fan seat connects the rear cover (18), air inlet
Mouthful be located at it is described after cover, it is described separation air flue seat (16) bottom be provided with the cleaning substructure (24), the cleaning substructure
It separates structure between air flue seat with described and is set as the detection air flue, the front end insertion of the separation air flue seat is provided with the separation
The outlet side of mouth seat (20), separation branch airway (22) is located on the separating opening seat.
5. a kind of interior PM2.5 concentration distribution detection system according to claim 4, which is characterized in that the fan seat
(17) fluted (26) are arranged in the position of installation blower, and the air intake blower fan is located in the groove, the cleaning air flue
(27) it is connected to the groove.
6. a kind of interior PM2.5 concentration distribution detection system according to claim 1, which is characterized in that the linear peace
Mounting mechanism includes two groups of locating rods (1), and the opposite side of two groups of locating rods (1) offers sliding slot (3), the PM2.5 sensor
(2) bottom is fixedly connected with locating piece (4), and the locating piece (4) is located between two groups of locating rods (1), the locating piece (4)
Two sides offer mounting groove (5), the inner wall of the mounting groove (5) is fixedly connected with spring (6), the one of the spring (6)
Side is fixedly connected with fixture block (7), and the fixture block (7) is slidably connected with sliding slot (3), and the two sides of the locating rod (1) are plugged with
The both ends of fixing sleeve (9), the fixing sleeve (9) are fixedly connected to latch (10), the bottom setting of the latch (10)
Have anchor ear (11), the output end of the data processing controller (8) is electrically connected with alarm (12).
7. a kind of interior PM2.5 concentration distribution detection system according to claim 6, which is characterized in that the locating rod
(1) one end is fixedly connected with inserted link (13), and the other end of the locating rod (1) offers jack (14), the inserted link (13)
With jack (14) grafting.
8. a kind of interior PM2.5 concentration distribution detection system according to claim 7, which is characterized in that the fixture block (7)
Shape be right-angled trapezium, and be provided with block between fixture block (7) and spring (6).
9. a kind of interior PM2.5 concentration distribution detection system according to claim 1, which is characterized in that at the data
Reason controller (8) include include central processing unit (81), ROM preset module (82) and data comparator (83), it is described in
The input terminal and A/D converter output end of central processor (81) are electrically connected, the central processing unit (81) and ROM preset module
(82) output end of two-way electrical connection, the ROM preset module (82) is electrically connected with the input terminal of data comparator (83), described
Data comparator (83) with central processing unit (81) is two-way is electrically connected.
10. a kind of interior PM2.5 concentration distribution detection system according to claim 1, which is characterized in that at the data
The output end of reason controller (8) is connected with host computer (15) by wireless network signal, data processing controller (8) control
Make the ventilating fan and the work of detection probe cyclical intermission.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910283091.7A CN109916790B (en) | 2019-04-09 | 2019-04-09 | Indoor PM2.5 concentration distribution detection system |
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| CN201910283091.7A CN109916790B (en) | 2019-04-09 | 2019-04-09 | Indoor PM2.5 concentration distribution detection system |
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