CN206804484U - Survey haze circuit and the survey haze instrument comprising the survey haze circuit - Google Patents
Survey haze circuit and the survey haze instrument comprising the survey haze circuit Download PDFInfo
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- CN206804484U CN206804484U CN201720444555.4U CN201720444555U CN206804484U CN 206804484 U CN206804484 U CN 206804484U CN 201720444555 U CN201720444555 U CN 201720444555U CN 206804484 U CN206804484 U CN 206804484U
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- Prior art keywords
- haze
- gas
- survey
- air pump
- survey haze
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Abstract
Air particle concentration mensuration technical field is the utility model is related to, specifically, is related to a kind of survey haze circuit and the survey haze instrument comprising the survey haze circuit.The survey haze circuit includes：Power subsystem, for providing operating voltage；Air pump, for outside air to be pumped into a survey haze intracavitary；Laser emission element, for survey haze intracavitary emission measurement light beam；Laser absorption unit, for laser emission element coordinate with receive measuring beam through survey haze intracavitary gas scattering after light and form measurement signal；Temperature and Humidity unit, the temperature and humidity of haze intracavity gas is surveyed for detecting and forms temperature-humidity signal；Air pressure detecting unit, for detecting the air pressure surveyed at haze intracavitary and air pump gas port and forming air pressure signal；And main control unit.The survey haze instrument includes the survey haze circuit, and the utility model more can be detected accurately to the particle concentration in air.
Description
Technical field
The utility model is related to air particle concentration mensuration technical field, specifically, be related to it is a kind of survey haze circuit and
Survey haze instrument comprising the survey haze circuit.
Background technology
Contain the tiny particles content of a variety of particle diameters such as a variety of particulate matters, which part such as PM10, PM2.5, PM1.0 in air
Human body can be entered by human respiratory, this harm to the human body is very big.Therefore the detection to particulate in air concentration
It is significant, but lacks a kind of preferable particle analyte detection product of easy to use and measurement accuracy in the prior art.
Utility model content
The utility model provide it is a kind of survey haze circuit, it can overcome certain or some defects of prior art.
According to survey haze circuit of the present utility model, it includes：
Power subsystem, for providing operating voltage；
Air pump, for outside air to be pumped into a survey haze intracavitary；
Laser emission element, for survey haze intracavitary emission measurement light beam；
Laser absorption unit, for receiving gas scattering of the measuring beam through survey haze intracavitary with laser emission element cooperation
Rear light simultaneously forms measurement signal；
Temperature and Humidity unit, the temperature and humidity of haze intracavity gas is surveyed for detecting and forms temperature-humidity signal；
Air pressure detecting unit, for detecting the air pressure surveyed at haze intracavitary and air pump gas port and forming air pressure signal；And
Main control unit, for controlling air pump, laser emission element, laser absorption unit, Temperature and Humidity unit and air pressure
The corresponding actions of detection unit, and the particle concentration for surveying haze intracavity gas is calculated according to measurement signal and temperature-humidity signal,
And the rotating speed of air pump is controlled by an air pump control unit according to air pressure signal.
In survey haze circuit of the present utility model, the gas of haze intracavitary (can be surveyed to measurement object by Temperature and Humidity unit
Body) humiture detected, and then preferably measurement result can be compensated according to the current humiture of measurement object,
And then preferably improve measurement precision.
In addition, air pressure detecting unit can be detected preferably to surveying haze intracavitary with the air pressure at air pump gas port, from
And preferably the rotating speed of air pump can be adjusted in real time, it ensure that the measurement object for surveying haze intracavitary can be with one more
Stable flow velocity flows through, so as to preferably improve the accuracy of detection.
Preferably, temperature-humidity signal is used to compensate measurement signal.
Preferably, air pressure detecting unit, main control unit, air pump control unit are collectively forming for being closed to air pump rotating speed
Ring control system.
The utility model additionally provide it is a kind of survey haze instrument, it can overcome certain or some defects of prior art.
Haze instrument is surveyed according to the utility model, it includes surveying haze instrument body, and surveying haze instrument body includes housing and cover plate, housing with
Cover plate is collectively forming for circuit installation cavity, and circuit installation cavity is interior to be provided with any of the above-described survey haze circuit.
Applicant of the present utility model, earlier application excessively a kind of entitled " a kind of high precision test instrument ", Application No.
The Chinese patent application of " 201610959811.3 ", survey haze circuit of the present utility model can preferably apply to the earlier application
In.In addition, the application introduces the full content of the earlier application here.
Have one to be used for the individual cavity that gas enters preferably, surveying haze chamber, be provided with the individual cavity and be used for gas
The opening of entrance and the opening for gas discharge, the opening for being used for gas entrance enter for outside air, and this is used for gas
The opening of body discharge is used to coordinate with air pump, and laser emission element and laser absorption unit are at survey haze chamber.
A cutter is detachably provided with preferably, surveying haze chamber and being used for the opening that gas enters, cutter is used to filter out
It is not the particle of particle diameter to be measured in be pumped into gas.
Preferably, the open communication that the air inlet of air pump is used for gas and discharged by a filter for installation with surveying haze chamber,
The gas that filter for installation is used to enter to surveying haze chamber air pump filters.
Preferably, surveying haze chamber place relative with laser emission element is provided with laser absorption component, laser absorption component is used for
For absorptiometry light beam by the light after surveying haze chamber, laser absorption component includes the absorption glass for being capable of absorptiometry light beam.
Preferably, air pump is pumped out and is pumped into gas by a sound-muffling box.
Preferably, cutter includes airscoop shroud, airscoop shroud one end is provided with air inlet, and airscoop shroud is used to be used for surveying haze chamber
The opening connection that gas enters；In airscoop shroud stainless steel substrates, nozzle, the first filter are sequentially provided with the direction that gas enters
Box and the second filtering film magazine, stainless steel substrates are used to filter out the bulky grain debris in gas, the first filtering film magazine and the second filter
Box is used to filter out the particle of specified particle diameter scope in gas.
Survey haze instrument of the present utility model, due to being compensated by Temperature and Humidity unit to final measurement, and leads to
Cross air pressure detecting unit and closed-loop control is carried out to the rotating speed of air pump, so as to preferably ensure that it can reach higher measurement
Precision.
Brief description of the drawings
Fig. 1 is the structural representation of the survey haze instrument in embodiment 1；
Fig. 2 is the block diagram of the survey haze circuit in embodiment 1.
Embodiment
To further appreciate that content of the present utility model, the utility model is described in detail in conjunction with the accompanying drawings and embodiments.
It should be appreciated that embodiment be only the utility model is explained and and it is non-limiting.
Embodiment 1
Present embodiments provide a kind of survey haze instrument.It can be preferably to such as PM1.0, PM2.5, PM10 in air
The concentration of grain thing is detected.
As shown in figure 1, the schematic diagram for the survey haze instrument in the present embodiment.It includes surveying haze instrument body 100, surveys haze instrument body
100 include housing 111 and cover plate 112, and housing 111 and cover plate 112 are collectively forming for circuit installation cavity, are set in circuit installation cavity
Have and survey haze circuit.
As shown in Fig. 2 the schematic diagram for the survey haze circuit in the present embodiment.It includes：Power subsystem, for providing work
Voltage；Air pump 140, for outside air pump 140 to be entered in a survey haze chamber 130；Laser emission element, for survey haze chamber 130
Interior emission measurement light beam；Laser absorption unit, for receiving measuring beam through surveying in haze chamber 130 with laser emission element cooperation
Gas scattering after light and form measurement signal；Temperature and Humidity unit, the temperature of gas in haze chamber 130 is surveyed for detecting
With humidity and form temperature-humidity signal；Air pressure detecting unit, the interior gas with the pump gas mouth of air pump 140 of haze chamber 130 is surveyed for detecting
Press and form air pressure signal；And main control unit, for controlling air pump 140, laser emission element, laser absorption unit, warm and humid
Detection unit and the corresponding actions of air pressure detecting unit are spent, and is calculated according to measurement signal and temperature-humidity signal and surveys haze chamber 130
The particle concentration of interior gas, and the rotating speed of air pump 140 is controlled by the control unit of an air pump 140 according to air pressure signal
System.
In the present embodiment, temperature-humidity signal is used to compensate measurement signal；Air pressure detecting unit, main control unit, gas
The control unit of pump 140 is collectively forming for the closed-loop control system to the rotating speed of air pump 140.
In the present embodiment, surveying haze chamber 130 has one to be used for the individual cavity that gas enters, and is provided with and is used at the individual cavity
The opening that gas enters and the opening for gas discharge, the opening for being used for gas entrance enter for outside air, the use
It is used to coordinate with air pump 140 in the opening of gas discharge, laser emission element and laser absorption unit are located at survey haze chamber 130
Place.
In the present embodiment, survey haze chamber 130 and be detachably provided with a cutter 120, cutter for the opening that gas enters
120 be used for filter out in be pumped into gas be not particle diameter to be measured particle.
In the present embodiment, the air inlet of air pump 140 is used for gas discharge by a filter for installation 150 with surveying haze chamber 130
Open communication, filter for installation 150 be used for survey haze chamber 130 enter air pump 140 gas filter.
In the present embodiment, survey the place relative with laser emission element of haze chamber 130 and be provided with laser absorption component, laser absorption component
For absorptiometry light beam by the light after surveying haze chamber 130, laser absorption component includes the extinction for being capable of absorptiometry light beam
Glass.
In the present embodiment, air pump 140 pumps out and is pumped into gas by a sound-muffling box 160.
In the present embodiment, cutter includes airscoop shroud, and airscoop shroud one end is provided with air inlet, and airscoop shroud is used for surveying haze chamber
130 are used for the opening connection that gas enters；Stainless steel substrates, nozzle, the are sequentially provided with the direction that gas enters in airscoop shroud
One filtering film magazine and the second filtering film magazine, stainless steel substrates are used to filtering out bulky grain debris in gas, the first filtering film magazine and the
Two filtering film magazines are used to filter out the particle of specified particle diameter scope in gas.
Schematically the utility model and embodiments thereof are described above, this describes no restricted, accompanying drawing
Shown in be also one of embodiment of the present utility model, actual structure is not limited thereto.So if this area
Those of ordinary skill enlightened by it, do not depart from the utility model create objective in the case of, without creativeness design
The frame mode similar to the technical scheme and embodiment, the scope of protection of the utility model all should be belonged to.
Claims (10)
1. survey haze circuit, it is characterised in that：Including,
Power subsystem, for providing operating voltage；
Air pump (140), for outside air pump (140) to be entered in a survey haze chamber (130)；
Laser emission element, for survey haze chamber (130) interior emission measurement light beam；
Laser absorption unit, dissipated for coordinating with laser emission element with receiving measuring beam through surveying the gas in haze chamber (130)
Light after penetrating simultaneously forms measurement signal；
Temperature and Humidity unit, the temperature and humidity of haze chamber (130) interior gas is surveyed for detecting and forms temperature-humidity signal；
Air pressure detecting unit, for detecting the air pressure surveyed in haze chamber (130) and at air pump (140) pump gas mouth and forming air pressure letter
Number；And
Main control unit, for controlling air pump (140), laser emission element, laser absorption unit, Temperature and Humidity unit and air pressure
The corresponding actions of detection unit, and the particulate matter for surveying haze chamber (130) interior gas is calculated according to measurement signal and temperature-humidity signal
Concentration, and the rotating speed of air pump (140) is controlled by an air pump (140) control unit according to air pressure signal.
2. survey haze circuit according to claim 1, it is characterised in that：Temperature-humidity signal is used to mend measurement signal
Repay.
3. survey haze circuit according to claim 1, it is characterised in that：Air pressure detecting unit, main control unit, air pump (140)
Control unit is collectively forming for the closed-loop control system to air pump (140) rotating speed.
4. survey haze instrument, it is characterised in that：Including surveying haze instrument body (100), surveying haze instrument body (100) includes housing (111) and lid
Plate (112), housing (111) and cover plate (112) are collectively forming for circuit installation cavity, and circuit installation cavity is interior to be provided with claim 1
Any survey haze circuit in~3.
5. survey haze instrument according to claim 4, it is characterised in that：Surveying haze chamber (130) has one to be used for the only of gas entrance
Cavity is found, is provided with the individual cavity and is used for the opening that gas enters and the opening discharged for gas, this is used for gas and entered
Opening for outside air enter, this be used for gas discharge opening be used for air pump (140) coordinate, laser emission element and
Laser absorption unit is located at survey haze chamber (130) place.
6. survey haze instrument according to claim 5, it is characterised in that：Surveying haze chamber (130) can for the opening that gas enters
Dismounting is provided with a cutter (120), cutter (120) for filter out in be pumped into gas be not particle diameter to be measured particle.
7. survey haze instrument according to claim 6, it is characterised in that：The air inlet of air pump (140) passes through a filter for installation
(150) it is used for the open communication of gas discharge with surveying haze chamber (130), filter for installation (150) is used to enter to surveying haze chamber (130)
The gas of air pump (140) is filtered.
8. survey haze instrument according to claim 7, it is characterised in that：Haze chamber (130) place relative with laser emission element is surveyed to set
There is laser absorption component, laser absorption component passes through the light after surveying haze chamber (130), laser absorption group for absorptiometry light beam
Part includes the absorption glass for being capable of absorptiometry light beam.
9. survey haze instrument according to claim 8, it is characterised in that：Air pump (140) is pumped out by a sound-muffling box (160) and pump
Enter gas.
10. survey haze instrument according to claim 9, it is characterised in that：Cutter includes airscoop shroud, airscoop shroud one end be provided with into
Gas port, the opening that airscoop shroud is used to be used for surveying haze chamber (130) gas entrance are connected；In airscoop shroud on the direction that gas enters
Stainless steel substrates, nozzle, the first filtering film magazine and the second filtering film magazine, stainless steel substrates are sequentially provided with to be used to filter out big in gas
Grain debris, the first filtering film magazine and the second filtering film magazine are used to filter out the particle of specified particle diameter scope in gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720444555.4U CN206804484U (en) | 2017-04-26 | 2017-04-26 | Survey haze circuit and the survey haze instrument comprising the survey haze circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720444555.4U CN206804484U (en) | 2017-04-26 | 2017-04-26 | Survey haze circuit and the survey haze instrument comprising the survey haze circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206804484U true CN206804484U (en) | 2017-12-26 |
Family
ID=60735701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720444555.4U Expired - Fee Related CN206804484U (en) | 2017-04-26 | 2017-04-26 | Survey haze circuit and the survey haze instrument comprising the survey haze circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206804484U (en) |
-
2017
- 2017-04-26 CN CN201720444555.4U patent/CN206804484U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20171226 |