CN206920195U - Stationary source dilution tunnel sampling apparatus - Google Patents
Stationary source dilution tunnel sampling apparatus Download PDFInfo
- Publication number
- CN206920195U CN206920195U CN201720842717.XU CN201720842717U CN206920195U CN 206920195 U CN206920195 U CN 206920195U CN 201720842717 U CN201720842717 U CN 201720842717U CN 206920195 U CN206920195 U CN 206920195U
- Authority
- CN
- China
- Prior art keywords
- dilution
- dilution tank
- fine particle
- sampling
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of stationary source dilution tunnel sampling apparatus, including flue, heating sampling pipe, Teflon pipe, air generator, clarifier, flowmeter, dilution tank, andersen sampler, aspiration pump and bypass equipment, silica gel and activated carbon in purified device remove moisture in air and organic matter.Flue gas is sufficiently mixed in dilution tank mixing section with pure air, and being condensed into nuclear reaction in stay segment generates coagulable fine particle.Flow andersen sampler in the connection of dilution tank end, for gathering in flue gas fine particle and condensing fine particle caused by nucleation through dilution.Environment and pollution sources sampling apparatus are combined by the utility model, middle flow is sampled, using andersen sampler as sampling power, greatly reduce dilution system volume, flow of entering is controlled with bypath system, it is easy to operate, while cascade sampling can be carried out to fine particle, different-grain diameter fine particle can be acquired, there is the value of popularization and application.
Description
Technical field
It the utility model is related to a kind of environmental protection equipment, more particularly to a kind of stationary source dilution tunnel sampling apparatus.
Background technology
The dilution tunnel sampling apparatus that studies in China uses at present is mostly expensive and using large scale shunting, low discharge
Sampling so that dilution system volume is excessive not readily portable, also can not carry out cascade sampling to fine particle.
Utility model content
The purpose of this utility model is that to solve the above problems and provides a kind of stationary source dilution tunnel and adopt
Sampling device.
The utility model is achieved through the following technical solutions above-mentioned purpose：
The utility model includes flue, heating sampling pipe, Teflon pipe, air generator, clarifier, flowmeter, dilution
Case, andersen sampler, aspiration pump and bypass equipment, the middle part of the flue are connected by one end of pipeline and the Teflon pipe
Connect, the heating sampling pipe is coated on the outer tube wall of the pipeline, the other end of the Teflon pipe and the dilution tank
Entrance connects, and the outlet of the air generator passes sequentially through the clarifier and the flowmeter and the entrance of the dilution tank
Connection, forms syphon structure between the outlet of the entrance of the dilution tank and the Teflon pipe and the flowmeter, described dilute
The first outlet for releasing case is connected with the bypass equipment, and the second outlet of the dilution tank and the entrance of the andersen sampler connect
Connect, the outlet of the andersen sampler is connected with the aspiration pump.
Specifically, the bypass equipment is the automatic Apparatus for Dust Content in Stack of 3012H types.
The beneficial effects of the utility model are：
The utility model is a kind of stationary source dilution tunnel sampling apparatus, compared with prior art, the utility model
Environment and pollution sources sampling apparatus are combined, middle flow is sampled, using andersen sampler as power is sampled, greatly
Ground reduces dilution system volume, and flow of entering is controlled with bypath system, easy to operate, while fine particle can be classified
Sampling, can be acquired to different-grain diameter fine particle, have the value of popularization and application.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure：1- flues, 2- heating sampling pipe, 3- Teflon pipes, 4- air generators, 5- clarifiers, 6- flowmeters, 7-
Dilution tank, 8- andersen samplers, 9- aspiration pumps, 10- bypass equipments.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1：The utility model includes flue 1, heating sampling pipe 2, Teflon pipe 3, air generator 4, purification
Device 5, flowmeter 6, dilution tank 7, andersen sampler 8, aspiration pump 9 and bypass equipment 10, the middle part of the flue 1 by pipeline with
One end connection of the Teflon pipe 3, the heating sampling pipe 2 are coated on the outer tube wall of the pipeline, the Teflon pipe 3
The other end be connected with the entrance of the dilution tank 7, the outlet of the air generator 4 passes sequentially through the clarifier 5 and institute
The entrance that flowmeter 6 is stated with the dilution tank 7 is connected, the entrance of the dilution tank 7 and the Teflon pipe 3 and the flowmeter
Syphon structure is formed between 6 outlet, the first outlet of the dilution tank 7 is connected with the bypass equipment 10, the dilution tank 7
Second outlet be connected with the entrance of the andersen sampler 8, the outlet of the andersen sampler 8 is connected with the aspiration pump 9.
Heating sampling pipe 2 can be heated, and temperature control can prevent flue gas from cooling down in sampling pipe to condense at 100-120 DEG C.
Dilution system is formed by air generator 4 and dilution tank 7.By air generator 4, (air generator 4 can be pneumatics to clarifier 5
Machine) supply, the silica gel and activated carbon in purified device 5 remove moisture in air and organic matter.Dilution tank 7 is divided for mixing section and stopped
Section is stayed, flue gas is sufficiently mixed in mixing section and pure air, and coagulable thin of nuclear reaction generation is condensed into stay segment
Grain thing.Flow andersen sampler in the connection of the end of dilution tank 7, for gathering in flue gas fine particle and condensing nucleation production through dilution
Raw fine particle.
Specifically, the bypass equipment 10 is the automatic Apparatus for Dust Content in Stack of 3012H types.
The control method of the stationary source dilution tunnel sampling apparatus comprises the following steps：
(1) Reynolds number：The flowing of nature is divided into two kinds of laminar flow and turbulent flow, and Reynolds number is the ginseng for judging fluid motion state
Number, reflect the ratio of fluid motion inertia force and viscous force.Compared with small Reynolds number, flow for laminar flow, each particle of fluid it is mutual
Not blending, with the increase of Reynolds number, the gradual loss of stability of laminar flow, and then it is changed into turbulent flow.Under turbulence state, fluid is each
The mutual blending of particle, the exchange of momentum and energy occurs, it is plentiful, uniform when causing flow rate profiles compared with laminar flow.Ordinary circumstance
Under, Reynolds number thinks that gas reaches turbulent flow requirement in mixed diluting section more than 4000, and flue gas and diluent air are well mixed：
Re=U1L/v
In formula：U1For the characteristic velocity of fluid, L is characterized length, and v is the kinematic viscosity coefficient of fluid, therefore：
Re=2Q/ π Rv → R=2Q/ π vRe → R=2*Q/ (3.14*15.5*10-6*4000)
→ R=(0.019~0.027) m
Known air is at 101.325kPa (1atm), 70 °F (21.1 DEG C), ρ 1.199kg/m3, gas viscosity
(183.7*10-7Pas at 25 DEG C)[3], Q is 110~160L/min；
(2) thinner ratio：The utility model sampling apparatus is eight grades of andersen samplers of big flow, flow 100L/min；Bypass
System is that Lao answers the automatic flue dust of 3012H types (gas) tester, 10~60L/min of flow；It is 110~160L/ always to go out throughput
min.Induction part, diluent air is provided by oilless air compressor, setting diluent air flow is equal to andersen sampler flow, therefore
The control of gas production end charge flow rate is realized by the change of bypass equipment flow；If：Q1 is inlet end flow, and Q2 is diluent air
Flow, according to thinner ratio formula：
Thinner ratio=(Q1+Q2)/Q1=(2.7~11)
(3) residence time：Flue gas is condensed in dilution tank, is nucleated, and the longer residence time is more advantageous to the shape of particulate matter
Into, but in the case of fixed extraction flow, the longer residence time requires bigger dilution tank volume, and this is obviously unfavorable for
The carrying and use of instrument.The utility model design stay segment is that volume is 55L, and it is 110~160L/min always to go out throughput, root
According to residence time formula：Residence time=V/Q=(20~30).
Waste gas of pollutant is diluted by the utility model with pure air, and simulation stationary source waste gas is cold in atmosphere
Karyomorphism is congealed into fine grained process, and particulate matter will be acquired with andersen sampler, and it is thin to can be used to measure stationary source
Particle size distribution situation and different diameter airborne particle chemical composition.
The advantages of general principle and principal character of the present utility model and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (2)
- A kind of 1. stationary source dilution tunnel sampling apparatus, it is characterised in that：Including flue, heating sampling pipe, Teflon pipe, Air generator, clarifier, flowmeter, dilution tank, andersen sampler, aspiration pump and bypass equipment, the middle part of the flue lead to Piping is connected with one end of the Teflon pipe, and the heating sampling pipe is coated on the outer tube wall of the pipeline, the iron The other end of teflon tube is connected with the entrance of the dilution tank, the outlet of the air generator pass sequentially through the clarifier and The flowmeter is connected with the entrance of the dilution tank, the entrance of the dilution tank and the Teflon pipe and the flowmeter Syphon structure is formed between outlet, the first outlet of the dilution tank is connected with the bypass equipment, and the second of the dilution tank Outlet is connected with the entrance of the andersen sampler, and the outlet of the andersen sampler is connected with the aspiration pump.
- 2. stationary source dilution tunnel sampling apparatus according to claim 1, it is characterised in that：The bypass equipment is The automatic Apparatus for Dust Content in Stack of 3012H types.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720842717.XU CN206920195U (en) | 2017-07-12 | 2017-07-12 | Stationary source dilution tunnel sampling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720842717.XU CN206920195U (en) | 2017-07-12 | 2017-07-12 | Stationary source dilution tunnel sampling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206920195U true CN206920195U (en) | 2018-01-23 |
Family
ID=61347365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720842717.XU Expired - Fee Related CN206920195U (en) | 2017-07-12 | 2017-07-12 | Stationary source dilution tunnel sampling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206920195U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228784A (en) * | 2017-07-12 | 2017-10-03 | 福建省环境科学研究院 | Stationary source dilution tunnel sampling apparatus |
| CN110441099A (en) * | 2019-07-18 | 2019-11-12 | 清华大学 | A kind of pollution sources condensable particle sampling device and the method for sampling |
-
2017
- 2017-07-12 CN CN201720842717.XU patent/CN206920195U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228784A (en) * | 2017-07-12 | 2017-10-03 | 福建省环境科学研究院 | Stationary source dilution tunnel sampling apparatus |
| CN110441099A (en) * | 2019-07-18 | 2019-11-12 | 清华大学 | A kind of pollution sources condensable particle sampling device and the method for sampling |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206920195U (en) | Stationary source dilution tunnel sampling apparatus | |
| CN106525520B (en) | Dilution multi-stage sampling device for flue gas mixing channel of fixed combustion source | |
| CN206738207U (en) | A kind of Wet-type dust-removal fan Performance Test System | |
| CN102128151A (en) | Method and device for collecting water flow energy | |
| CN205538547U (en) | Engine exhaust part flows particulate matter measuring device | |
| CN205958413U (en) | Gas -solid two -phase flow simulating measurement setup | |
| CN208253823U (en) | Wind power ganged control device applied to subway ventilation air-conditioning system | |
| CN207991654U (en) | A kind of portable gas table calibrating installation | |
| CN204479367U (en) | The sampling apparatus of fine particle in the low dust concentration flue gas of a kind of stationary source | |
| CN107228784A (en) | Stationary source dilution tunnel sampling apparatus | |
| CN211562903U (en) | Multifunctional microfluid impinging stream nanoparticle preparation device | |
| CN207740154U (en) | A kind of motor-driven feed-water pump set efficiency test system | |
| CN201884189U (en) | Gas-liquid energy perforated pipe efficiency improving device | |
| CN207036509U (en) | A kind of particle on-line period dilution tube | |
| CN205643304U (en) | Flue gas preprocessor of swift environmental protection of ne -leakage | |
| CN208076173U (en) | A kind of wet method fume desulfurizing system demister performance test experimental system | |
| CN209559573U (en) | Combined sampling device inside and outside a kind of demister drop flue | |
| CN201382860Y (en) | Tobacco shred pneumatic conveying test device | |
| CN210509764U (en) | Isobaric pressure difference augmented flow control system | |
| CN208155964U (en) | A kind of desulfurization slurry PH measuring device | |
| CN207392310U (en) | Reversed return type pipe network cycles visualization device | |
| CN206772355U (en) | One kind is used for generating set efficiency test water-carrying capacity and temperature measuring equipment | |
| CN111456937A (en) | Vacuum system for wind tunnel test | |
| CN104986745A (en) | Gaseous nitrous acid generating device and technology thereof | |
| CN104826561B (en) | Two-stage evaporation and condensation type quasi-monodisperse aerosol generating apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180123 Termination date: 20190712 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |