CN206223607U - A kind of particle concentration detection means - Google Patents
A kind of particle concentration detection means Download PDFInfo
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- CN206223607U CN206223607U CN201621033681.2U CN201621033681U CN206223607U CN 206223607 U CN206223607 U CN 206223607U CN 201621033681 U CN201621033681 U CN 201621033681U CN 206223607 U CN206223607 U CN 206223607U
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- delustring
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- particle concentration
- concentration detection
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Abstract
The utility model is related to gas measurement technique field, there is provided a kind of particle concentration detection means.Including：Lower house, it is internally provided with the first light hole and the second light hole that measuring chamber is connected with the measuring chamber；Laser generator, is arranged in one end of the lower house, and the laser of laser generator transmitting enters in the measuring chamber from first light hole, and is passed from second light hole, into delustring room；Classification measuring cell, the classification measuring cell is arranged in the measuring chamber, and the classification measuring cell is located on the direction vertical with the light path of the laser generator, and the classification measuring cell includes at least two light sensors.The utility model implementation method can realize hierarchical detection by setting more than two photosensitive detection devices in particle concentration detection means to the particulate matter of different-grain diameter in air, concentration, and detection range is wider, and certainty of measurement is higher, and measurement result is more accurate.
Description
Technical field
The utility model implementation method is related to gas measurement technique field, more particularly to a kind of particle concentration detection dress
Put.
Background technology
With continuing to develop for industry, the discharge capacity of industrial waste gas is also constantly rising, and harmful gas is contained in these waste gas
Body various toxic and harmfuls such as including formaldehyde, benzene,toluene,xylene, ammonia, carbon monoxide, hydrogen sulfide, while also contain can
Suction particulate matter, this kind of particulate matter can enter the upper and lower respiratory tract of human body by breathing, especially directly thin less than 2.5 μm
Particulate matter (PM2.5), reaches pulmonary deposition, even with alveolar, into blood of human body, it is therefore desirable to the particulate matter in air
Concentration is monitored in time.
Inventor has found that prior art at least has problems with long-term research process：Current particulate matter is dense
When particle concentration is detected, different-grain diameter, concentration need to carry out range switching degree detecting system, it is impossible to coherent measurement,
Therefore how to design that a kind of can be directed to different-grain diameter, concentration of particles thing to enter the device of Line Continuity detection be that prior art needs
The problem of solution.
Utility model content
The utility model implementation method is mainly solving the technical problems that existing particle concentration detecting system is to different grains
Footpath, concentration of particles thing concentration carries out detection needs switching range, it is impossible to entering Line Continuity detection to high-concentration and low-concentration particulate matter.
In order to solve the above technical problems, the technical scheme that the utility model implementation method is used is：There is provided a kind of
Grain thing concentration detection apparatus, including:Lower house, it is internally provided with the first light hole that measuring chamber is connected with the measuring chamber
With the second light hole；Laser generator, is arranged in one end of the lower house, and the laser that the laser generator is launched
Enter in the measuring chamber from first light hole, and passed from second light hole, into delustring room；Classification measurement
Element, the classification measuring cell is arranged in the measuring chamber, and the classification measuring cell is located at and is sent out with the laser
On the vertical direction of the light path of raw device, the classification measuring cell includes at least two light sensors.
Wherein, the lower house is additionally provided with measurement gas input port and measurement gas delivery port, and the measurement gas is defeated
Entrance and measurement gas delivery port are connected with the measuring chamber, and the diameter of the measurement gas input port is less than the survey
Measure the diameter of gas delivery port.
Wherein, also including the first diaphragm component, first diaphragm component is arranged at the laser generator and described
Between measuring chamber, the first delustring hole is offered on first diaphragm component, the first delustring hole position occurs in the laser
On the optical circuit path of device.
Wherein, also including the second diaphragm component, second diaphragm component is arranged at the measuring chamber away from described first
The side of diaphragm component, offers the second delustring hole on second diaphragm component, the second delustring hole position is in the laser
On the optical circuit path of generator.
Wherein, the light hole of first diaphragm component and the second diaphragm component is all higher than or equal to the laser generator
The light hole of lens module.
Wherein, the particle concentration detection means also includes delustring room；The delustring room is arranged at the lower house
The other end, and the delustring room connects with the second delustring hole.
Wherein, the delustring room is provided with inclined plane corresponding with the second delustring hole, wherein, the inclined plane with swash
Angle is less than 45 degree between the light path of optical generator.
Wherein, the lower house is internally provided with sheath gas passage, sheath gas evolution device and sheath gas and enters hole, the sheath gas passage
Enter hole with first diaphragm component, measuring chamber, the second diaphragm component, delustring room and sheath air purifying apparatus, sheath gas respectively to connect,
The sheath air purifying apparatus are arranged at the sheath gas passage and enter one end that hole connects with the sheath gas, and the sheath gas passage is arranged at
Lower house top, by with the first layer of silica gel, the closed formation passage of circuit board.
Wherein, the particle concentration detection means also includes delustring pad, and the delustring pad is located at the measuring chamber；
The delustring pad is provided with loophole, and the classification measuring cell is arranged at the loophole top, and with the printing opacity
Hole is corresponding.
Wherein, the particle concentration detection means also includes silicagel pad lid, the first layer of silica gel, circuit board, the second silica gel
Layer and casing cover；The silicagel pad is covered on the delustring pad, and first layer of silica gel is arranged at the silicagel pad and covers,
And the lower house is covered, the circuit board is arranged in first layer of silica gel, and the classification measuring cell is set
In in the circuit board, second layer of silica gel is arranged on the circuit board, and the casing cover is located at second layer of silica gel
On.
The beneficial effect of the utility model implementation method is：It is different from the situation of prior art, the utility model embodiment party
Formula by setting more than two photosensitive detection original papers in particle concentration detection means, can to different-grain diameter in air,
The particulate matter of concentration realizes hierarchical detection, and detection range is wider, and certainty of measurement is higher, and measurement result is more accurate.
Brief description of the drawings
Fig. 1 is a kind of structural representation of particle concentration detection means that the utility model embodiment is provided；
Fig. 2 is a kind of generalized section of particle concentration detection means that the utility model embodiment is provided.
Specific embodiment
Fig. 1-2 is referred to, the utility model embodiment provides a kind of particle concentration detection means, including：Lower house 10,
It is internally provided with the first light hole 21 and the second light hole 22 that measuring chamber 20 is connected with the measuring chamber 20；Laser occurs
Device 30, is arranged in one end of the lower house 10, and the transmitting of the laser generator 30 laser from first thang-kng
Hole 21 enters in the measuring chamber 20, and is passed from second light hole 22；Classification measuring cell 40, the classification measurement
Element 40 is arranged in the measuring chamber 20, and the classification measuring cell 40 is located at the light path with the laser generator 30
On vertical direction, the classification measuring cell 40 includes at least two light sensors.Particle concentration detection means profit
With light scattering principle, the laser after being collimated in laser generator is crossed with tested gas in measuring chamber 20, shone by laser
Particulate matter after penetrating will produce scattering, and light sensor is received after scattering and will export corresponding photo-signal, signal transacting
Circuit uses two road signal transactings, and luminous flux scattered integrated signal and differential signal are obtained respectively, by acquisition after conversion
Grain amount of substance concentration information, two light sensors can be directed to different particle sizes and concentration sets different measurements etc.
Level, particle diameter and concentration to particulate matter carry out hierarchical measurement.
Specifically, the lower house 10 is additionally provided with measurement gas input port 50 and measurement gas delivery port 60, the survey
Amount gas input port 50 and measurement gas delivery port 60 are connected with the measuring chamber 20, and the measurement gas input port 50
Diameter of the diameter less than the measurement gas delivery port 60, due to containing particulate matter in tested gas, this be designed as preventing by
The particulate matter surveyed in gas can not timely be extracted, and be squeezed in particle concentration detection means, influence follow-up detection knot
Really, what deserves to be explained is, measurement gas input port 50 and measurement gas delivery port 60 position can exchange, the present embodiment is
One of which implementation method, is not used to limit the utility model.
Specifically, the particle concentration detection means also includes the first diaphragm component 70, and first diaphragm component 70 sets
It is placed between the laser generator 30 and the measuring chamber 20, the first delustring hole is offered on first diaphragm component 70
71, the first delustring hole 71 is located on the optical circuit path of the laser generator 30, meanwhile, the particle concentration detection means
Also include the second diaphragm component 80, second diaphragm component 80 is arranged at the measuring chamber 20 away from first diaphragm component
70 side, offers the second delustring hole 81 on second diaphragm component 80, the second delustring hole 81 is located at the laser
On the optical circuit path of generator.The light hole of the diaphragm component 80 of first diaphragm component 70 and second is all higher than or equal to described
The lens module light hole 31 of laser generator 30.The diaphragm component 80 of first diaphragm component 70 and second is respectively provided with the work of delustring
With the veiling glare that elimination laser is produced due to diffraction.
Specifically, the particle concentration detection means also includes delustring room 90, and the delustring room 90 is arranged at the lower casing
The other end of body 10, and the delustring room 90 connects with the second delustring hole 81, and the delustring room 90 will disappear by second
The light that unthreaded hole sends is eliminated, it is to avoid laser produces reflection, influences measurement result；The delustring room 90 is provided with and described
The corresponding inclined plane in two delustring hole 81, wherein, angle is less than 45 degree between the light path of the inclined plane and laser generator 30, should
It is designed to so that light quick roundtrip delustring in delustring room.
Specifically, the lower house 10 is internally provided with sheath gas passage 100, sheath air purifying apparatus 110 and sheath gas enters hole
120, the sheath gas passage 110 respectively with first diaphragm component 70, measuring chamber 20, the second diaphragm component 80, delustring room 90
Enter hole 120 with sheath gas to connect, the sheath air purifying apparatus 110 are arranged at the sheath gas passage 100 and enter hole 120 with the sheath gas and connect
Logical one end, in order that keeping negative pressure in the measuring chamber 20, the lower house 10 is provided with an air admission hole, i.e. sheath gas enters hole
120, contain particulate matter influence measurement result to prevent sheath gas from entering the air entered in hole 120, after air enters the air admission hole
Need by sheath air purifying apparatus 110, the sheath air purifying apparatus 110 can be other dresses with filtering absorption such as activated carbon
Put, sheath gas will be changed into by the gas after sheath air purifying apparatus 110, i.e., clean air, these clean air pass through sheath gas
It is each in the first diaphragm component 70, measuring chamber 20, the second diaphragm component 80, delustring room 90 in the inflow lower house 10 of passage 100
Individual passage.
Specifically, the particle concentration detection means also includes delustring pad 130, and the delustring pad 130 is covered on institute
State measuring chamber 20；The delustring pad 130 is provided with loophole 131, and the classification measuring cell 40 is arranged at the loophole
131 tops, and it is corresponding with the loophole 131.The particle concentration detection means also includes silicagel pad lid 140, first
Layer of silica gel 150, circuit board 160, the second layer of silica gel 170 and casing cover 180；The silicagel pad lid 140 is located at the delustring pad
On 130, first layer of silica gel 150 is arranged on the silicagel pad lid 140, and covers the lower house 10, the circuit
Plate 160 is arranged in first layer of silica gel 150, and the classification measuring cell 40 is arranged in the circuit board 160, institute
State the second layer of silica gel 170 to be arranged on the circuit board 160, the casing cover 180 is covered in second layer of silica gel 170.
Classification measuring cell 40 will export corresponding photoelectric current letter after receiving the light appeared from the loophole of the delustring pad 130
Number, signal processing circuit on circuit board 160 uses two road signal transactings, and luminous flux scattered integrated signal and micro- is obtained respectively
Sub-signal, by obtaining particulate matter quality concentration information after conversion.Silicagel pad lid 140, the first layer of silica gel 150 and the second layer of silica gel
170 are used to fill the space between the delustring pad 130 and circuit board 150 so that structure is compacter, and casing cover 180 covers
It is placed on lower house 10, the structure inside protection.
The utility model embodiment provides a kind of particle concentration detection means, by particle concentration detection means
More than two photosensitive detection original papers are set, hierarchical detection can be realized to the particulate matter of different-grain diameter in air, concentration, detect
Scope is wider, and certainty of measurement is higher, and measurement result is more accurate.
Implementation method of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is all
It is the equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or directly or indirectly uses
In other related technical fields, similarly it is included in scope of patent protection of the present utility model.
Claims (10)
1. a kind of particle concentration detection means, it is characterised in that including：
Lower house, it is internally provided with the first light hole and the second light hole that measuring chamber is connected with the measuring chamber；
Laser generator, is arranged in one end of the lower house, and laser generator transmitting laser from described the
One light hole enters in the measuring chamber, and is passed from second light hole, into delustring room；
Classification measuring cell, the classification measuring cell is arranged in the measuring chamber, and the classification measuring cell is located at
On the direction vertical with the light path of the laser generator, the classification measuring cell includes at least two light sensors.
2. particle concentration detection means according to claim 1, it is characterised in that the lower house is additionally provided with measurement
Gas input port and measurement gas delivery port, the measurement gas input port and measurement gas delivery port connect with the measuring chamber
It is logical, and the diameter of the measurement gas input port is less than the diameter for measuring gas delivery port.
3. particle concentration detection means according to claim 1, it is characterised in that also including the first diaphragm component, institute
State the first diaphragm component to be arranged between the laser generator and the measuring chamber, is offered on first diaphragm component
One delustring hole, the first delustring hole position is on the optical circuit path of the laser generator.
4. particle concentration detection means according to claim 3, it is characterised in that also including the second diaphragm component, institute
State the second diaphragm component and be arranged at side of the measuring chamber away from first diaphragm component, opened on second diaphragm component
The second delustring hole is provided with, the second delustring hole position is on the optical circuit path of the laser generator.
5. particle concentration detection means according to claim 4, it is characterised in that first diaphragm component and second
The light hole of diaphragm component is all higher than or equal to the lens module light hole of the laser generator.
6. particle concentration detection means according to claim 4, it is characterised in that including delustring room；
The delustring room is arranged at the other end of the lower house, and the delustring room connects with the second delustring hole.
7. particle concentration detection means according to claim 6, it is characterised in that the delustring room be provided with it is described
The corresponding inclined plane in second delustring hole, wherein, angle is less than 45 degree between the inclined plane and the light path of laser generator.
8. particle concentration detection means according to claim 4, it is characterised in that described to disappear also including delustring pad
Light pad is located at the measuring chamber；
The delustring pad is provided with loophole, and the classification measuring cell is arranged at the loophole top, and with it is described
Loophole is corresponding.
9. particle concentration detection means according to claim 8, it is characterised in that also including silicagel pad lid, the first silicon
Glue-line, circuit board, the second layer of silica gel and casing cover；
The silicagel pad is covered on the delustring pad, and first layer of silica gel is arranged at the silicagel pad and covers, and covers
Cover the lower house, the circuit board is arranged in first layer of silica gel, and the classification measuring cell be arranged at it is described
In circuit board, second layer of silica gel is arranged on the circuit board, and the casing cover is in second layer of silica gel.
10. particle concentration detection means according to claim 9, it is characterised in that the lower house is internally provided with
Sheath gas passage, sheath air purifying apparatus and sheath gas enter hole, the sheath gas passage respectively with first diaphragm component, measuring chamber,
Two diaphragm components, delustring room and sheath air purifying apparatus, sheath gas enter hole and connect, and the sheath air purifying apparatus are arranged at the sheath gas and lead to
Road and the sheath gas enter one end that hole connects, the sheath gas passage be arranged at the groove that is provided with inside the lower house and with it is described
The first layer of silica gel and the closed formation of described circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621033681.2U CN206223607U (en) | 2016-08-31 | 2016-08-31 | A kind of particle concentration detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621033681.2U CN206223607U (en) | 2016-08-31 | 2016-08-31 | A kind of particle concentration detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206223607U true CN206223607U (en) | 2017-06-06 |
Family
ID=58781413
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621033681.2U Active CN206223607U (en) | 2016-08-31 | 2016-08-31 | A kind of particle concentration detection means |
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| Country | Link |
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| CN (1) | CN206223607U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560985A (en) * | 2017-08-28 | 2018-01-09 | 南京中科乾安智能科技有限公司 | The detection means and equipment of Blower-free laser particle thing |
| WO2020047689A1 (en) | 2018-09-05 | 2020-03-12 | 武汉四方光电科技有限公司 | Method and apparatus for simultaneously measuring mass concentrations of particulate matter with different particle sizes |
| CN112198095A (en) * | 2020-09-27 | 2021-01-08 | 山东诺方电子科技有限公司 | Particle sensor sheath gas protective structure |
| CN116825603A (en) * | 2023-06-28 | 2023-09-29 | 河北子曰机械设备有限公司 | Laser extinction device and single-particle aerosol time-of-flight mass spectrometer |
-
2016
- 2016-08-31 CN CN201621033681.2U patent/CN206223607U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107560985A (en) * | 2017-08-28 | 2018-01-09 | 南京中科乾安智能科技有限公司 | The detection means and equipment of Blower-free laser particle thing |
| WO2020047689A1 (en) | 2018-09-05 | 2020-03-12 | 武汉四方光电科技有限公司 | Method and apparatus for simultaneously measuring mass concentrations of particulate matter with different particle sizes |
| CN112198095A (en) * | 2020-09-27 | 2021-01-08 | 山东诺方电子科技有限公司 | Particle sensor sheath gas protective structure |
| CN112198095B (en) * | 2020-09-27 | 2022-11-01 | 山东诺方电子科技有限公司 | Particle sensor sheath gas protective structure |
| CN116825603A (en) * | 2023-06-28 | 2023-09-29 | 河北子曰机械设备有限公司 | Laser extinction device and single-particle aerosol time-of-flight mass spectrometer |
| CN116825603B (en) * | 2023-06-28 | 2024-01-26 | 河北子曰机械设备有限公司 | Laser extinction device and single-particle aerosol time-of-flight mass spectrometer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yan Wanqian Inventor after: Zhang Zhixin Inventor before: Di Yuncai |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171114 Address after: Guangming Street white community first industrial city of Shenzhen road 518000 Guangdong Province Hing factory industrial park building A2 North building 11 layer Patentee after: Heng Zhiyuan Technology (Shenzhen) Co., Ltd. Address before: 232200 Anhui Province, Lu'an, Shouxian County City, Feng Zhuang Town, Miao Village Memorial village group Patentee before: Di Yuncai |
|
| TR01 | Transfer of patent right |