CN209342331U - The evaluating apparatus of PM2.5 turbulent flow reunion device efficiency - Google Patents
The evaluating apparatus of PM2.5 turbulent flow reunion device efficiency Download PDFInfo
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- CN209342331U CN209342331U CN201822063321.2U CN201822063321U CN209342331U CN 209342331 U CN209342331 U CN 209342331U CN 201822063321 U CN201822063321 U CN 201822063321U CN 209342331 U CN209342331 U CN 209342331U
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- flue
- leading portion
- turbulent flow
- end ductwork
- portion flue
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Abstract
A kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency, including axial flow blower, the inlet end of axial flow blower is connect with aerosol generator and smoke generating apptss, outlet side is connected to leading portion flue, leading portion flue end is connected to back-end ductwork front end by experimental section flue, and PM2.5 turbulent flow reunion device is installed in experimental section flue；Multiple test notches are offered in the survey of leading portion flue and back-end ductwork, each test indentation, there is respectively equipped with anemobiagraph one, anemobiagraph two, electrostatic low pressure ram and smoke dust sampler, anemobiagraph one, anemobiagraph two are respectively used to the wind speed in acquisition leading portion flue and back-end ductwork, electrostatic low pressure ram is used to acquire total dirt distribution in leading portion flue and back-end ductwork, and smoke dust sampler is used to acquire the particle size distribution in leading portion flue and back-end ductwork.The device can judge turbulence blades of different structure and arrangement under different flue gas environment for the agglomeration effect of PM2.5 particle, and the reasonable selection for turbulence blades construction and arrangement mode provides guidance.
Description
Technical field
The utility model relates to a kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency, belong to environmental protection technical field.
Background technique
Haze weather caused by being polluted by PM2.5 has become China's atmospheric environment problem outstanding；With coal fired power plant and work
Industry boiler be representative it is coal fire discharged be PM2.5 in China's atmosphere one of main source.Currently, total particulate control technology can
It is but very low for the capture rate of PM2.5 to reach very high level, but since PM2.5 partial size is tiny, cause a large amount of PM2.5 into
Enter in atmospheric environment.Therefore, pretreatment is predominantly arranged in the technological development direction of enhancing PM2.5 removing before conventional dust removal facility
Measure makes it through and is removed again after physically or chemically acting on long great achievement larger particles.
There are many kinds of particle agglomeration preconditioning techniques, including acoustic agglomeration, chemical agglomeration, turbulent flow are reunited, electricity is reunited, magnetic group
Poly-, steam phase transforming reunion, thermophoretic deposition etc., wherein turbulent flow agglomeration techniques are transformed existing cleaner because not needing, right
Dust-extraction unit is inherently laid out change less, and easy to operate, investment, operating cost are lower, and removal efficiency is high, therefore has good
Development prospect.
Flow-disturbing effect is the main power source that turbulent flow is reunited, and mainly passes through change disturbing flow device type in turbulent flow reunion room
Whirlpool is generated with arrangement mode to reach good agglomerating effect.Utility model patent CN104888573A devises a kind of promotion
The device and method of fine particle agglomeration, turbulence blades are triangle, tile shape, wedge shape, diamond shape, serpentine, " Z "
One of shape, rectangle, ellipse and streamlined or multiple combinations；Patent CN102000472A, 201832533U then mentions respectively
The structure of different turbulent flow agglomeration devices, Li Yunfei (research [D] the Ha Er that Li Yunfei flue gas fine particle turbulent flow is reunited are gone out
Shore polytechnical university .2014) by establishing new model, have studied shadow of the arrangement mode to agglomerating effect of votex sheet and flow-disturbing cylinder
It rings, and then proposes a kind of novel turbulence knockouts, the votex sheet which uses is "+" shaped sections blade, cross whirlpool
Piece production whirlpool effect is preferable, disadvantage is that it is larger that the resistance formed is arranged such；(Liu Hanxiao is ultra-fine coal-fired by Liu Hanxiao
The poly- simultaneously numerical simulation North China Electric Power University .2012 in grain object whirlpool) the turbulent flow aggregation procedure of superfine particulate matter in reunion device is simulated,
Its disturbing flow device made of the intercombination of size votex sheet, although the combination of size votex sheet can generate more whirlpools
Whirlpool, but presence and turbulence columns quantity due to baffle increases so that resistance increase it is more.It is proposed for turbulent flow agglomeration device
Different turbulence blades construction and arrangement modes, a set of behaviour is needed for the evaluation of the agglomeration effect of PM2.5 particle
Make convenient, accurate and reliable evaluating apparatus of testing and assessing, theory is provided refers to for the reasonable selection of turbulence blades construction and arrangement mode
It leads.
Utility model content
In view of the above-mentioned problems of the prior art, the utility model provides a kind of can accurately judge under different flue gas environment
The turbulence blades of different structure and arrangement are turbulence blades for the evaluating apparatus of the agglomeration effect of PM2.5 particle
The reasonable selection of construction and arrangement mode provides guidance.
To achieve the goals above, the utility model provides a kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency, including
The inlet end of axial flow blower, axial flow blower is connect with aerosol generator and smoke generating apptss, and outlet side and leading portion flue connect
Logical, leading portion flue end is connected to back-end ductwork front end by experimental section flue, and installation PM2.5 turbulent flow is reunited in experimental section flue
Device；
Multiple test notches are offered in the survey of leading portion flue and back-end ductwork, are respectively equipped with wind speed in each test indentation, there
Instrument one, anemobiagraph two, electrostatic low pressure ram and smoke dust sampler, wherein before anemobiagraph one, anemobiagraph two are respectively used to acquisition
Wind speed in section flue and back-end ductwork, electrostatic low pressure ram are used to acquire total dirt point in leading portion flue and back-end ductwork
Cloth, smoke dust sampler are used to acquire the particle size distribution in leading portion flue and back-end ductwork.
Further, to enter the air-flow in axial flow blower more uniformly in leading portion flue, close to leading portion flue
Airflow uniform distribution device is equipped in the leading portion flue of arrival end.
Further, the axial flow blower is the adjustable frequency conversion fan that maximum wind velocity is 30m/s.
Further, in order to avoid the vibration in the axial flow blower course of work interferes leading portion flue, the axis
It is connected between flow fan outlet side and leading portion flue by being flexible coupling.
Further, preceding to avoid the bending of leading portion flue or experimental section flue or back-end ductwork from causing resistance to air-flow
Linear type is arranged in left-right direction for section flue, experimental section flue and back-end ductwork, leading portion flue, experimental section flue and back-end ductwork
Section be rectangular or be circle.
The present apparatus is sent out by the way that the PM2.5 turbulent flow reunion device for needing to detect to be mounted in experimental section flue by aerosol
Raw device and smoke generating apptss simulate dust concentration and flue gas composition, and are conveyed by axial flow blower with certain wind speed
Into leading portion flue, wind speed, the total dirt in leading portion flue are distributed by anemobiagraph, electrostatic low pressure ram and smoke dust sampler
It is acquired with particle size distribution, in the case where keeping operating condition constant, which continues to move ahead to flow through and be arranged in experimental section cigarette
PM2.5 turbulent flow reunion device in road, by anemobiagraph, electrostatic low pressure ram and smoke dust sampler to the wind in back-end ductwork
The distribution of fast, total dirt and particle size distribution are acquired, flow through before and after PM2.5 turbulent flow reunion device by comparing total dirt of flue and
PM2.5 distribution of particles situation judges the superiority and inferiority using different turbulence blades for the agglomeration effect of PM2.5 particle, is
The reasonable selection of turbulence blades construction and arrangement mode provides theoretical direction.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
In figure: 1, axial flow blower, 2, aerosol generator, 3, smoke generating apptss, 4, leading portion flue, 5, back-end ductwork,
6, experimental section flue, 7, anemobiagraph one, 8, anemobiagraph two, 9, electrostatic low pressure ram, 10, smoke dust sampler, 11, air-flow it is equal
Cloth apparatus, 12, be flexible coupling.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing.
As shown in Figure 1, a kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency, including axial flow blower 1, axial flow blower 1 are
Maximum wind velocity is the adjustable frequency conversion fan of 30m/s, according to test needs, generally by blast velocity control in 10-20m/s；
The inlet end of axial flow blower 1 is connect with aerosol generator 2 and smoke generating apptss 3, the outlet side of axial flow blower 1
It is connected to leading portion flue 4,4 end of leading portion flue is connected to 5 front end of back-end ductwork by experimental section flue 6, in experimental section flue 6
PM2.5 turbulent flow reunion device is installed；
PM2.5 turbulent flow reunion device in the utility model is the PM2.5 turbulent flow reunion device that existing disclosure uses.PM2.5 is rapid
The turbulence blades that use of disturbing flow device in stream reunion device can for triangle, tile shape, wedge shape, diamond shape, S-shaped, Z-shaped, rectangle,
One of ellipse and streamlined or multiple combinations；Votex sheet can also be used as "+" shaped sections blade or use size votex sheet
The form of intercombination can be used for testing and compare and analyze as long as the construction and arrangement mode of turbulence blades is different.
Multiple test notches are offered on leading portion flue 4 and back-end ductwork 5, are respectively equipped with wind speed in each test indentation, there
Instrument 1, anemobiagraph 28, electrostatic low pressure ram 9 and smoke dust sampler 10, wherein the sampling head of anemobiagraph 1 passes through setting
It is extend into leading portion flue 4 in the test notch on leading portion flue 4, the sampling head of anemobiagraph 28 is by being arranged in back-end ductwork 5
On test notch extend into back-end ductwork 5, anemobiagraph 1, anemobiagraph 28 are respectively used to acquisition leading portion flue 4 and tail portion
Wind speed in flue 5, two sampling heads on electrostatic low pressure ram 9 respectively on leading portion flue 4 test notch and tail portion
Test notch connection on flue 5, electrostatic low pressure ram 9 are used to acquire total dirt point in leading portion flue 4 and back-end ductwork 5
Cloth, two sampling heads on smoke dust sampler 10 are lacked with the test notch on leading portion flue 4 and the test on back-end ductwork 5 respectively
Mouth connection, smoke dust sampler 10 are used to acquire the particle size distribution in leading portion flue 4 and back-end ductwork 5, collected signal
It can be shown by data processing and converting apparatus.
To enter the air-flow in axial flow blower 1 more uniformly in leading portion flue 4, close to 4 arrival end of leading portion flue
Airflow uniform distribution device 11 is equipped in leading portion flue 4；In order to avoid leading portion flue 4 is made in the vibration in 1 course of work of axial flow blower
At interference, 12 it is connected between 1 outlet side of axial flow blower and leading portion flue 4 by being flexible coupling.
To avoid the bending of leading portion flue 4 or experimental section flue 6 or back-end ductwork 5 from causing resistance, leading portion flue to air-flow
4, linear type is arranged in left-right direction for experimental section flue 6 and back-end ductwork 5, leading portion flue 4, experimental section flue 6 and back-end ductwork
5 section is rectangular or is circle.
When experiment, dust concentration and flue gas composition are simulated by aerosol generator 3 and smoke generating apptss 3,
And mixed airflow is transported in leading portion flue 4 with certain wind speed by axial flow blower 1, pass through anemobiagraph 1, electrostatic low pressure
Ram 9 and smoke dust sampler 10 are acquired wind speed, the distribution of total dirt and the particle size distribution in leading portion flue, keep work
In the case that condition is constant, which, which continues to move ahead, flows through the PM2.5 turbulent flow reunion device being arranged in experimental section flue 6, passes through wind
Fast instrument 28, electrostatic low pressure ram 9 and smoke dust sampler 10 are to wind speed, the distribution of total dirt and the grain diameter point in back-end ductwork 5
Cloth is acquired, and the air-flow for flowing through back-end ductwork 5 is discharged after exhaust gas processing device is handled.
The total dirt and PM2.5 distribution of particles situation for flowing through PM2.5 turbulent flow reunion device front and back flue by comparing, judge to use
Different turbulence blades are the conjunction of turbulence blades construction and arrangement mode for the superiority and inferiority of the agglomeration effect of PM2.5 particle
Reason selection provides theoretical direction.
Claims (5)
1. a kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency, which is characterized in that including axial flow blower (1), axial flow blower
(1) inlet end is connect with aerosol generator (2) and smoke generating apptss (3), the outlet side of axial flow blower (1) and leading portion cigarette
Road (4) connection, leading portion flue (4) end and back-end ductwork (5) front end are connected to by experimental section flue (6), experimental section flue (6)
Interior installation PM2.5 turbulent flow reunion device；
Multiple test notches are offered on leading portion flue (4) and back-end ductwork (5), are respectively equipped with wind in multiple test indentation, theres
Fast instrument one (7), anemobiagraph two (8), electrostatic low pressure ram (9) and smoke dust sampler (10), wherein anemobiagraph one (7), wind speed
Instrument two (8) is respectively used to the wind speed in acquisition leading portion flue (4) and back-end ductwork (5), and electrostatic low pressure ram (9) is for acquiring
Total dirt distribution in leading portion flue (4) and back-end ductwork (5), smoke dust sampler (10) is for acquiring leading portion flue (4) and tail portion
Particle size distribution in flue (5).
2. a kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency according to claim 1, which is characterized in that by nearby
Airflow uniform distribution device (11) are equipped in the leading portion flue (4) of section flue (4) arrival end.
3. a kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency according to claim 1 or 2, which is characterized in that described
Axial flow blower (1) be adjustable frequency conversion fan that maximum wind velocity is 30m/s.
4. a kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency according to claim 3, which is characterized in that described
Between axial flow blower (1) outlet side and leading portion flue (4) by be flexible coupling (12) be connected to.
5. a kind of evaluating apparatus of PM2.5 turbulent flow reunion device efficiency according to claim 4, which is characterized in that before described
Linear type is arranged in left-right direction for section flue (4), experimental section flue (6) and back-end ductwork (5), leading portion flue (4), experimental section cigarette
The section of road (6) and back-end ductwork (5) is rectangular or is circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822063321.2U CN209342331U (en) | 2018-12-10 | 2018-12-10 | The evaluating apparatus of PM2.5 turbulent flow reunion device efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822063321.2U CN209342331U (en) | 2018-12-10 | 2018-12-10 | The evaluating apparatus of PM2.5 turbulent flow reunion device efficiency |
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| CN209342331U true CN209342331U (en) | 2019-09-03 |
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| CN201822063321.2U Expired - Fee Related CN209342331U (en) | 2018-12-10 | 2018-12-10 | The evaluating apparatus of PM2.5 turbulent flow reunion device efficiency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924341A (en) * | 2020-03-23 | 2021-06-08 | 大连理工大学 | Experimental device for controllable micron order granule torrent of humiture is reunited |
-
2018
- 2018-12-10 CN CN201822063321.2U patent/CN209342331U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924341A (en) * | 2020-03-23 | 2021-06-08 | 大连理工大学 | Experimental device for controllable micron order granule torrent of humiture is reunited |
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Granted publication date: 20190903 Termination date: 20201210 |