CN209231165U - A kind of dedicated air particles test equipment of laboratory test - Google Patents
A kind of dedicated air particles test equipment of laboratory test Download PDFInfo
- Publication number
- CN209231165U CN209231165U CN201821974642.1U CN201821974642U CN209231165U CN 209231165 U CN209231165 U CN 209231165U CN 201821974642 U CN201821974642 U CN 201821974642U CN 209231165 U CN209231165 U CN 209231165U
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- China
- Prior art keywords
- air
- filter cylinder
- detection device
- microcontroller
- glass fiber
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Abstract
The utility model discloses a kind of dedicated air particles test equipments of laboratory test, including detection device shell, microcontroller, air filter and laser particle counter, detection device shell front is equipped with display screen, detection device shell upper end is fixed with air intake duct, the detection device shell lower end side is equipped with charging hole, filter cylinder installation shell is provided on the outside of the air filter, filter cylinder installation enclosure interior upper end is fixed with support plate, and the lower spring end is fixed with the pressing plate of rubber material.The dedicated air particles test equipment of the laboratory test, solenoid electric valve and air flow sensor are installed using on the pipeline that measurement chamber is connected with air pump, the flow velocity of air-flow can effectively be controlled, and then improve the precision of detection, the filter being arranged inside equipment simultaneously is using dismountable glass fiber filter cylinder, secondary detection can be carried out by weight method, improve the accuracy of Laboratory air particle detections.
Description
Technical field
The utility model relates to air quality test equipment technical field, specially a kind of dedicated air of laboratory test
Particle test equipment.
Background technique
In recent years, as fast industrialization and the explosive of vehicles number increase, air pollution is got worse, especially
Fine particle seriously threatens people's health and daily life.The method of currently used detection particle concentration is laser
PM2.5 detection method, laser PM2.5 detection method measure the volume of particulate matter using laser PM2.5 detector by optical principle, then
The quality of particulate matter is calculated in rule of thumb formula, that is, the particle density estimated.
The shortcomings that existing laser PM2.5 detector is due to using density empirical value ρ to carry out granular mass in air
It calculates, due to the difference between empirical value and practical real density, causes calculated result not accurate enough.
In order to solve disadvantage existing currently on the market, urgent need improves the technology of particle test device, can be better
Air particles detection is carried out, the development of Detection of Air Quality industry is promoted.
Utility model content
The purpose of this utility model is to provide a kind of dedicated air particles test equipments of laboratory test, on solving
The shortcomings that stating the existing laser PM2.5 detector proposed in background technique is due to using density empirical value ρ in air
Grain quality is calculated, and due to the difference between empirical value and practical real density, leads to the problem that calculated result is not accurate enough.
To achieve the above object, the utility model provides the following technical solutions: a kind of dedicated air of laboratory test
Grain test equipment, including detection device shell, microcontroller, air filter and laser particle counter, the detection device
Shell front is equipped with display screen, and function button, the detection device are equipped on the detection device shell below display screen
Shell upper end is fixed with air intake duct, and air intake duct lower end is connected with measurement chamber, and measures chamber side and be provided with laser particle meter
Number device, the measurement chamber lower end are connected by pipeline with air pump, and it is free to measure installation on the pipeline that chamber is connected with air pump
Mass-air-flow sensor and solenoid electric valve, air pump lower end output end are connected by hose with air filter, and the first rubber
Filter maintenance door is installed, the detection device shell lower end side is equipped with charging on the detection device shell of rubber mat rear end
Hole, and the battery being connected with charging hole is installed inside detection device shell lower end, setting on the outside of the air filter
There is filter cylinder that shell is installed, and be fixed with the second rubber pad below filter cylinder installation shell, filter cylinder installation enclosure interior upper end is solid
Surely there is support plate, and support plate is internally provided with the first rubber pad, and is equipped with spring, the lower spring end on the outside of support plate
It is fixed with the pressing plate of rubber material, and spring inner is equipped with glass fiber filter cylinder, and glass fiber filter cylinder is in air filter
It is internal detachable.
Preferably, the battery with microcontroller by electrically connecting, and microcontroller side is provided with memory, and
Microcontroller by electrically connecting with laser particle counter, while solenoid electric valve and air flow sensor by electrically with
Microcontroller connects.
Preferably, the air filter upper end is connected with escape pipe, and escape pipe upper end is fixed on detection device shell
Top, and escape pipe is located on the left of air intake duct, while escape pipe and air intake duct upper end are mounted on rubber stopper.
Preferably, the air flow sensor is FS4001 microsensor, and air pump is ZQ370-03 micro air pump,
And microcontroller is XC95144-15PQ100I editable single-chip microcontroller, while microcontroller is pressed by winding displacement and display screen and function
Button is connected.
Preferably, the air pump is by electrically connecting with battery, and is equipped on the circuit that connects of battery and air pump
Electromagnetic switch, and microcontroller with electromagnetic switch by being electrically connected.
Preferably, the glass fiber filter cylinder upper end is tightly attached on the second rubber pad, and behind glass fiber filter cylinder upper end
Side is compressed by pressing plate, and glass fiber filter cylinder rear end is tightly bonded with the first rubber pad, while glass fiber filter cylinder outer sheath
It is equipped with filter cylinder set.
Preferably, the glass fiber filter cylinder upper end is bonded with the second rubber pad, and glass fiber filter cylinder rear end and first
Rubber pad fitting, and the filter cylinder set bottom being arranged on the outside of glass fiber filter cylinder offers through-hole, while filter cylinder set is PVC transparent material
Matter.
Compared with prior art, the utility model has the beneficial effects that the dedicated air particles test of the laboratory test
Equipment installs solenoid electric valve and air flow sensor using on the pipeline that measurement chamber is connected with air pump, can be effective
The flow velocity of air-flow is controlled, and then improves the precision of detection, while the filter being arranged inside equipment uses dismountable glass
Glass fiber filter cylinder can carry out secondary detection by weight method, improve the accuracy of Laboratory air particle detections, reduce density warp
It tests value ρ granular mass in air is carried out to calculate bring error, can preferably carry out air particles detection, promote air matter
Measure the development of detection industry.
Detailed description of the invention
Fig. 1 is the utility model constructional appearance schematic diagram；
Fig. 2 is the utility model structure expanded schematic diagram；
Fig. 3 is the utility model structural gap filter schematic diagram；
Fig. 4 is the utility model structure laser particle counter operation principle schematic diagram.
In figure: 1, detection device shell, 2, display screen, 3, air intake duct, 4, function button, 5, charging hole, 6, battery, 7,
Microcontroller, 8, hose, 9, air filter, 10, filter maintenance door, 11, escape pipe, 12, measurement chamber, 13, laser particle
Counter, 14, air flow sensor, 15, solenoid electric valve, 16, air pump, 17, electromagnetic switch, the 18, first rubber pad, 19,
Filter cylinder installs shell, the 20, second rubber pad, 21, pressing plate, 22, glass fiber filter cylinder, 23, spring, 24, support plate, 25, filter cylinder
Set.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of dedicated air particles of laboratory test
Test equipment, including detection device shell 1, microcontroller 7, air filter 9 and laser particle counter 13, detection device shell
1 front of body is equipped with display screen 2, and is equipped with function button 4, detection device shell on the detection device shell 1 of 2 lower section of display screen
1 upper end of body is fixed with air intake duct 3, and 3 lower end of air intake duct is connected with measurement chamber 12, and measures 12 side of chamber and be provided with laser grain
Sub-count device 13, measurement 12 lower end of chamber are connected by pipeline with air pump 16, and measure the pipeline that chamber 12 is connected with air pump 16
On air flow sensor 14 and solenoid electric valve 15 be installed, air flow sensor 14 is FS4001 microsensor, and
Air pump 16 is ZQ370-03 micro air pump, and microcontroller 7 is XC95144-15PQ100I editable single-chip microcontroller, while microcontroller
Device 7 is connected by winding displacement with display screen 2 and function button 4, and 16 lower end output end of air pump passes through hose 8 and air filter 9
Connect, and filter maintenance door 10 be installed on the detection device shell 1 of first rubber pad, 18 rear end, air pump 16 by electrically with
Battery 6 connects, and is equipped with electromagnetic switch 17 on the circuit that connects of battery 6 and air pump 16, and microcontroller 7 passes through electrical property
It is connected with electromagnetic switch 17,1 lower end side of detection device shell is equipped with charging hole 5, and inside 1 lower end of detection device shell
The battery 6 being connected with charging hole 5 is installed, battery 6 with microcontroller 7 by electrically connecting, and 7 side of microcontroller
It is provided with memory, and microcontroller 7 is connected by electrical with laser particle counter 13, while solenoid electric valve 15 and air
Flow sensor 14 is provided with filter cylinder installation shell 19, and filter by electrically connecting with microcontroller 7 on the outside of air filter 9
The second rubber pad 20 is fixed with below cylinder installation shell 19, filter cylinder installation 19 inner upper end of shell is fixed with support plate 24, and props up
Fagging 24 is internally provided with the first rubber pad 18, and spring 23 is equipped on the outside of support plate 24, and 23 lower end of spring is fixed with rubber
The pressing plate 21 of glue material matter, and glass fiber filter cylinder 22 is installed, and glass fiber filter cylinder 22 is in air filter 9 inside spring 23
Internal detachable, 22 upper end of glass fiber filter cylinder is tightly attached on the second rubber pad 20, and 22 upper end rear of glass fiber filter cylinder
It is compressed by pressing plate 21, and 22 rear end of glass fiber filter cylinder is tightly bonded with the first rubber pad 18, while glass fiber filter cylinder 22
Outside is equipped with filter cylinder set 25, and 22 upper end of glass fiber filter cylinder is bonded with the second rubber pad 20, and 22 rear end of glass fiber filter cylinder
The filter cylinder for being bonded with the first rubber pad 18, and being arranged on the outside of glass fiber filter cylinder 22 covers 25 bottoms and offers through-hole, while filter cylinder
Set 25 is PVC transparent material, and 9 upper end of air filter is connected with escape pipe 11, and 11 upper end of escape pipe is fixed on detection device
1 top of shell, and escape pipe 11 is located at 3 left side of air intake duct, while escape pipe 11 and 3 upper end of air intake duct are mounted on rubber
Plug.
Working principle:, first will by charging hole 5 in air particles test equipment dedicated using the laboratory test
The electricity of battery 6 is full of, and density empirical value ρ is input in advance inside microcontroller 7, and glass fiber filter cylinder 22 is carried out
Weighing pan P opens escape pipe 11 later, and glass fiber filter cylinder 22 is placed on inside filter cylinder installation shell 19, the front and back two for being
End fits with the second rubber pad 20 and the first rubber pad 18, then closes filter maintenance door 10, is opened by function button 4
Dynamic equipment, electromagnetic switch 17 is opened later, and air pump 16 is powered, and gas passes through solenoid electric valve by 3 input equipment of air intake duct
15 progress air-flows play small control, and gas enters inside measurement chamber 12 later, and laser particle counter 13 carries out particle
Counts are entered data into later inside microcontroller 7, are being shown that then gas passes through hose by display screen 2
8 are input to inside air filter 9, and gas passes through escape pipe 11 after the filtering of glass fiber filter cylinder 22 and excludes, and examine
After survey, the glass fiber filter cylinder 22 inside air filter 9 can be taken out and carry out weighing p, pass through the data between P and p
It calculates, and then obtains granular mass, the comparison of data can be carried out with laser particle counter, reduces error, here it is the experiments
The whole process of dedicated air particles test equipment work is tested in room.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of dedicated air particles test equipment of laboratory test, including detection device shell (1), microcontroller (7), sky
Air filter (9) and laser particle counter (13), it is characterised in that: detection device shell (1) front is equipped with display
Shield (2), and is equipped with function button (4) on the detection device shell (1) below display screen (2), the detection device shell (1)
Upper end is fixed with air intake duct (3), and air intake duct (3) lower end is connected with measurement chamber (12), and measures chamber (12) side and be provided with
Laser particle counter (13), the measurement chamber (12) lower end are connected by pipeline with air pump (16), and measurement chamber (12) and
Air flow sensor (14) and solenoid electric valve (15) be installed, under the air pump (16) on the pipeline that air pump (16) is connected
End output end is connected by hose (8) with air filter (9), and the detection device shell (1) of the first rubber pad (18) rear end
On be equipped with filter maintenance door (10), detection device shell (1) lower end side is equipped with charging hole (5), and detection set
The battery (6) being connected with charging hole (5), setting on the outside of the air filter (9) are installed inside standby shell (1) lower end
There is filter cylinder that shell (19) are installed, and is fixed with the second rubber pad (20) below filter cylinder installation shell (19), the filter cylinder mounting shell
Body (19) inner upper end is fixed with support plate (24), and support plate (24) is internally provided with the first rubber pad (18), and supports
It is equipped with spring (23) on the outside of plate (24), spring (23) lower end is fixed with the pressing plate (21) of rubber material, and spring (23)
Inside is equipped with glass fiber filter cylinder (22), and glass fiber filter cylinder (22) is internal detachable in air filter (9).
2. the dedicated air particles test equipment of a kind of laboratory test according to claim 1, it is characterised in that: described
Battery (6) with microcontroller (7) by electrically connecting, and microcontroller (7) side is provided with memory, and microcontroller
(7) by electrically connecting with laser particle counter (13), while solenoid electric valve (15) and air flow sensor (14) are logical
It crosses and electrically connects with microcontroller (7).
3. the dedicated air particles test equipment of a kind of laboratory test according to claim 1, it is characterised in that: described
Air filter (9) upper end is connected with escape pipe (11), and escape pipe (11) upper end is fixed on detection device shell (1) top,
And escape pipe (11) is located on the left of air intake duct (3), while escape pipe (11) and air intake duct (3) upper end are mounted on rubber stopper.
4. the dedicated air particles test equipment of a kind of laboratory test according to claim 1, it is characterised in that: described
Air flow sensor (14) is FS4001 microsensor, and air pump (16) is ZQ370-03 micro air pump, and microcontroller
It (7) is XC95144-15PQ100I editable single-chip microcontroller, while microcontroller (7) is pressed by winding displacement and display screen (2) and function
Button (4) is connected.
5. the dedicated air particles test equipment of a kind of laboratory test according to claim 1, it is characterised in that: described
Air pump (16) is equipped with electromagnetism on the circuit that connects of battery (6) and air pump (16) and opens by electrically connecting with battery (6)
It closes (17), and microcontroller (7) with electromagnetic switch (17) by being electrically connected.
6. the dedicated air particles test equipment of a kind of laboratory test according to claim 1, it is characterised in that: described
Glass fiber filter cylinder (22) upper end is tightly attached on the second rubber pad (20), and glass fiber filter cylinder (22) upper end rear passes through pressure
Plate (21) compresses, and glass fiber filter cylinder (22) rear end is tightly bonded with the first rubber pad (18), while glass fiber filter cylinder
(22) outside is equipped with filter cylinder set (25).
7. the dedicated air particles test equipment of a kind of laboratory test according to claim 1, it is characterised in that: described
Glass fiber filter cylinder (22) upper end is bonded with the second rubber pad (20), and glass fiber filter cylinder (22) rear end and the first rubber pad
(18) it is bonded, and filter cylinder set (25) bottom being arranged on the outside of glass fiber filter cylinder (22) offers through-hole, while filter cylinder set (25)
For PVC transparent material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821974642.1U CN209231165U (en) | 2018-11-28 | 2018-11-28 | A kind of dedicated air particles test equipment of laboratory test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821974642.1U CN209231165U (en) | 2018-11-28 | 2018-11-28 | A kind of dedicated air particles test equipment of laboratory test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209231165U true CN209231165U (en) | 2019-08-09 |
Family
ID=67505017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821974642.1U Expired - Fee Related CN209231165U (en) | 2018-11-28 | 2018-11-28 | A kind of dedicated air particles test equipment of laboratory test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209231165U (en) |
-
2018
- 2018-11-28 CN CN201821974642.1U patent/CN209231165U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190809 Termination date: 20211128 |