CN208140440U - A kind of stationary source exhaust gas sampling apparatus - Google Patents
A kind of stationary source exhaust gas sampling apparatus Download PDFInfo
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- CN208140440U CN208140440U CN201820734128.4U CN201820734128U CN208140440U CN 208140440 U CN208140440 U CN 208140440U CN 201820734128 U CN201820734128 U CN 201820734128U CN 208140440 U CN208140440 U CN 208140440U
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Abstract
The utility model discloses a kind of stationary source exhaust gas sampling apparatus, and dirt fluorine sampling pipe is sequentially connected in series the first drier, the first temperature, pressure measuring device, the first rotor flowmeter, the first vacuum pump, second temperature device for pressure measurement and flow totalizer by pipeline；Gas fluorine branch is connected on pipeline between dirt fluorine sampling pipe and the first drier, gas fluorine branch road is sequentially connected in series gas fluorine absorption bottle, the second drier, the second spinner flowmeter, the second vacuum pump, third temperature, pressure measuring device and the second flow totalizer, the piping connection between the second flow totalizer and the first rotor flowmeter and the first vacuum pump.Stationary source exhaust gas sampling apparatus provided by the utility model makes dirt fluorine and gaseous fluorine standardize and samples.
Description
Technical field
The utility model relates to sampling technique fields, more particularly to a kind of stationary source exhaust gas sampling apparatus.
Background technique
The sampling of fluoride, uses HJ/T67-2001 at present in the exhaust of exhaust gas stationary source《Atmosphere stationary source fluoride
Measurement ion selective electrode method》In corresponding sampling apparatus.Its technology path is：Using flue dust (particulate matter) method of sampling into
Row isokinetic sampling is equipped with the large-scale impact type absorption bottle of 75ml absorbing liquid in the outlet series connection three of sampling pipe, traps dirt respectively
Fluorine and gaseous fluorine.
Existing apparatus only has a set of sampling system, synchronizes sampling to dirt fluorine and gaseous fluorine with identical flow.It is discontented
Toe ring protects HJ/T48-1999 in professional standard《Smoke dust sampling instrument technical conditions》And HJ/T47-1999《Flue gas sampler technology item
Part》Requirement to flue dust (particulate matter) and gaseous pollutant sampling flow.
HJ/T48-1999《Smoke dust sampling instrument technical conditions》In define the sampling flow of flue dust (particulate matter)：" ' 6 is automatic
Flow Pitot tube is adjusted to test the speed in parallel smoke dust sampling instrument technical requirements ' in ' the linear range lower limit of 6.3.4.6 flow sensor flow
It should be not higher than 15L/min, the range of linearity upper limit should be not less than 50L/min ' ".
HJ/T47-1999《Flue gas sampler technical conditions》In " 4.5 flow measurements and control device 4.5.3 spinner
Count sampler 4.5.3.2 spinner flowmeter.Control and metering gas production flow, technical requirements are identical as 4.5.2.2 item " (i.e. flow
Range 0-1.5L/min).
It requires the sampling flow that can be seen that dirt fluorine at least to guarantee between 15-50L/min from above-mentioned standard, is flowed in category
Amount sampling；The sampling flow of gaseous fluorine requires between 0-1.5L/min, belongs to small traffic sampling.The sampling flow of the two is not handed over
Collection, is not suitable for same traffic sampling.During actual samples, since the sampling flow of dirt fluorine is big and becomes with air velocity
Change, the absorption efficiency for causing gaseous fluorine to sample is low, and when flow is big can take away absorbing liquid, cause solution loss.
Utility model content
It is above-mentioned to solve the purpose of the utility model is to provide a kind of stationary source exhaust gas sampling apparatus and the method for sampling
Problem of the existing technology makes dirt fluorine and gaseous fluorine standardize and samples.It ensure that the science, accuracy and generation of sampling process
Table.
To achieve the above object, the utility model provides following scheme：
The utility model provides a kind of stationary source exhaust gas sampling apparatus, including device for pressure measurement, dirt fluorine sampling pipe
And thermocouple；Thermocouple is used to measure the temperature of gas in flue, and device for pressure measurement is used to measure the pressure of gas in flue,
The dirt fluorine sampling pipe has been sequentially connected in series the first drier, the first temperature, pressure measuring device, the first rotor flow by pipeline
Meter, the first vacuum pump, second temperature device for pressure measurement and flow totalizer；Between the dirt fluorine sampling pipe and the first drier
Pipeline on be communicated with gas fluorine branch, the gas fluorine branch road has been sequentially connected in series gas fluorine absorption bottle, the second drier, the second rotor
Flowmeter, the second vacuum pump, third temperature, pressure measuring device and the second flow totalizer, second flow totalizer and institute
State the piping connection between the first rotor flowmeter and the first vacuum pump.
Optionally, the device for pressure measurement includes Pitot tube and inclined tube micromanometer.Pitot tube, the dirt of device for pressure measurement
Fluorine sampling pipe and thermocouple group are combined into a sampling gun.
Optionally, the first temperature, pressure measuring device includes thermometer and pressure vacuum gauge；The second temperature pressure
Force measuring device and third temperature, pressure measuring device are identical as the first temperature, pressure measuring device structure.
Optionally, it is placed with gas fluorine absorbent in the gas fluorine absorption bottle, is equipped with pan feeding at the top of the gas fluorine absorption bottle
Pipe and discharge nozzle, described feeding pipe one end are connect with gas fluorine branch, and the other end is set in gas fluorine absorbent；The discharge nozzle one
End is connected to second drier, and the other end is located at the upper end of the gas fluorine absorbent in the gas fluorine absorption bottle.
Optionally, connecting between the gas fluorine branch and second drier, there are two the identical gas fluorine of structure to absorb
Bottle.
Optionally, filter cylinder is provided on the dirt fluorine sampling pipe, the filter cylinder front end is equipped with acquisition device, the acquisition
Device is the acquisition mouth being obliquely installed, and is provided with and is bent in an arc shape on the acquisition mouth, the open end being bent in an arc shape and flue
Interior air-flow direction is oppositely arranged.
The utility model also provides a kind of stationary source exhaust gas method of sampling, includes the following steps；
(1) gas source parameter measurement；It is detected by thermocouple and device for pressure measurement and calculates gas flow rate in flue；
(2) dirt fluorine samples；Calculate dirt fluorine sampling flow, and the first drier, the first temperature, pressure by being sequentially connected in series
Measuring device, the first rotor flowmeter, the first vacuum pump, second temperature device for pressure measurement and flow totalizer carry out dirt fluorine and adopt
Sample；
(3) gas fluorine samples；Gas fluorine sampling flow is set, and gas fluorine is carried out by the concatenated gas fluorine absorption bottle in gas fluorine branch road
Sampling；
(4) sampling volume is calculated, sampling is completed.
Optionally, in step (3), after the completion of the sampling of gas fluorine, residual gas passes through second that gas fluorine branch road is sequentially connected in series
Described in drier, the second spinner flowmeter, the second vacuum pump, third temperature, pressure measuring device and the second flow totalizer enter
In pipeline between the first rotor flowmeter and the first vacuum pump, participates in the sampling of dirt fluorine and calculate.
The utility model achieves following technical effect compared with the existing technology：
The utility model separates a small-flow gas and absorption bottle is gone to acquire gaseous fluorine after middle flow collection dirt fluorine.It inhales
Small-flow gas after having received gaseous fluorine, then mass flow is returned, participate in the calculating of dirt fluorine gas production.It is i.e. same machine, homologous, double-current
Amount sampling.It ensure that the synchronous progress that dirt fluorine is sampled with gaseous fluorine, that is, ensure that the science and representativeness of sample.It ensure that gas
Absorbing liquid is complete before and after the normal absorption efficiency and sampling of the sampling of state fluorine, that is, ensure that the accuracy of sample.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments for those of ordinary skill in the art without any creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model stationary source exhaust gas sampling apparatus；
Fig. 2 is the method for sampling flow diagram of the utility model stationary source exhaust gas sampling apparatus；
Wherein, 1 be flue, 2 be dirt fluorine sampling pipe, 2-1 is acquisition mouth, 3 is thermocouple, 4 is Pitot tube, 5 is that inclined tube is micro-
Pressure meter, 6 be the first drier, 7 be the first temperature, pressure measuring device, 8 be the first rotor flowmeter, 9 be the first vacuum pump, 10
Be the first flow totalizer for second temperature device for pressure measurement, 11,12 be gas fluorine branch, 13 be gas fluorine absorption bottle, 13-1 is
Feeding pipe, 13-2 are discharge nozzle, 14 are the second drier, 15 are the second spinner flowmeter, 16 are the second vacuum pump, 17 are third
Temperature, pressure measuring device, 18 are the second flow totalizer.
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.
It is above-mentioned to solve the purpose of the utility model is to provide a kind of stationary source exhaust gas sampling apparatus and the method for sampling
Problem of the existing technology makes dirt fluorine and gaseous fluorine standardize and samples.It ensure that the science, accuracy and generation of sampling process
Table.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing and have
Body embodiment is described in further detail the utility model.
The utility model provides a kind of stationary source exhaust gas sampling apparatus, as shown in Figure 1, include device for pressure measurement,
Dirt fluorine sampling pipe 2 and thermocouple 3；Device for pressure measurement includes Pitot tube 4 and inclined tube micromanometer 5.The skin support of device for pressure measurement
Pipe 4, dirt fluorine sampling pipe 2 and 3 groups of thermocouple are combined into a sampling gun.It is dry that dirt fluorine sampling pipe 2 by pipeline has been sequentially connected in series first
Dry device 6, the first temperature, pressure measuring device 7, the first rotor flowmeter 8, the first vacuum pump 9, second temperature device for pressure measurement
10 and first flow totalizer 11；Gas fluorine branch 12, gas are communicated on pipeline between dirt fluorine sampling pipe 2 and the first drier 6
Be sequentially connected in series on fluorine branch 12 gas fluorine absorption bottle 13, the second drier 14, the second spinner flowmeter 15, the second vacuum pump 16,
Third temperature, pressure measuring device 17 and the second flow totalizer 18, the second flow totalizer 18 be located at the first rotor flowmeter
8 and the first piping connection between vacuum pump 9.First temperature, pressure measuring device 7 includes thermometer and pressure vacuum gauge；Second
Temperature, pressure measuring device 10 and third temperature, pressure measuring device 17 are identical as 7 structure of the first temperature, pressure measuring device.Gas
It is placed with gas fluorine absorbent in fluorine absorption bottle 13, is equipped with feeding pipe 13-1 and discharge nozzle 13-2 at the top of gas fluorine absorption bottle 13, enters
The one end expects pipe 13-1 is connect with gas fluorine branch 12, and the other end is set in the gas fluorine absorbent of gas fluorine absorption bottle 13；Discharge nozzle 13-
2 one end are connected to the second drier 14, and the other end is located at the upper end of the gas fluorine absorbent in gas fluorine absorption bottle 13.Gas fluorine branch 12
Connecting between the second drier 14, there are two the identical gas fluorine absorption bottles 13 of structure.It is provided with filter cylinder on dirt fluorine sampling pipe 2, is filtered
Cylinder front end is equipped with acquisition device, and acquisition device is the acquisition mouth 2-1 being obliquely installed, and is provided with and is bent in an arc shape on acquisition mouth 2-1,
The open end being bent in an arc shape is oppositely arranged with 1 interior air-flow direction of flue.
The utility model also provides a kind of stationary source exhaust gas method of sampling for above-mentioned apparatus, as shown in Fig. 2, including
Following steps；
(1) gas source parameter measurement；Gas temperature and pressure in flue 1 are detected by thermocouple 3 and device for pressure measurement, and
Calculate gas flow rate in flue 1；
(2) dirt fluorine samples；Calculate dirt fluorine sampling flow, and the first drier 6, the first temperature, pressure by being sequentially connected in series
Measuring device 7, the first rotor flowmeter 8, the first vacuum pump 9, second temperature device for pressure measurement 10 and flow totalizer 11 into
The sampling of row dirt fluorine；Traffic sampling in use when dirt fluorine samples；
(3) gas fluorine samples；Gas fluorine sampling flow is set, and is carried out by gas fluorine absorption bottle 13 concatenated on gas fluorine branch 12
The sampling of gas fluorine；Small traffic sampling is used when gas fluorine samples；After the completion of the sampling of gas fluorine, residual gas passes through on gas fluorine branch 12 successively
Concatenated second drier 14, the second spinner flowmeter 15, the second vacuum pump 16, third temperature, pressure measuring device 17 and second
Flow totalizer 18 enters in the pipeline between the first rotor flowmeter 8 and the first vacuum pump 9, participates in the sampling of dirt fluorine and calculates.
(4) sampling volume is calculated, sampling is completed.
In the vocabulary of terms being related in the utility model, stationary source --- refer to all kinds of production process (such as pot with bottom having circular lug
Furnace, stove etc.) or the exhaust gas that generates of Waste disposal process (such as waste incineration), by flue, chimney and exhaust tube etc. to air
The pollution sources of middle discharge.
Fluoride --- refer to the summation of gaseous fluorine and dirt fluorine.Gaseous fluorine is absorbed with sodium hydroxide solution, and dirt fluorine, which refers to, to be dissolved in
Fluoride hydrochloric acid solution and that particulate matter coexists.
Isokinetic sampling --- mouth plane face off-gas flows will be sampled, make to enter the air velocity and measuring point for sampling mouth
Exhaust gas flow velocity is equal.
Constant flow sample --- with the method for regulation flow collection waste gas sample, flow is kept not in sample collection process
Become.
Particulate matter --- fuel or other substances are produced in mechanical treatment in burning, synthesis, decomposition and various materials
The raw solid being suspended in discharge gas or liquid particles shape substance.
Sample mode of middle traffic sampling --- the sampling flow in 15~50L/min (liter/min).
Sample mode of small traffic sampling --- the sampling flow in 0~1.5L/min (liter/min).
Specific case is applied in the utility model to be expounded the principles of the present invention and embodiment, it is above
The explanation of embodiment is merely used to help understand the method and its core concept of the utility model；Meanwhile for the one of this field
As technical staff, based on the idea of the present invention, there will be changes in the specific implementation manner and application range.To sum up
Described, the content of the present specification should not be construed as a limitation of the present invention.
Claims (6)
1. a kind of stationary source exhaust gas sampling apparatus, it is characterised in that：Including device for pressure measurement, dirt fluorine sampling pipe and thermoelectricity
It is even；The dirt fluorine sampling pipe has been sequentially connected in series the first drier, the first temperature, pressure measuring device, the first rotor stream by pipeline
Meter, the first vacuum pump, second temperature device for pressure measurement and flow totalizer；The dirt fluorine sampling pipe and the first drier it
Between pipeline on be communicated with gas fluorine branch, the gas fluorine branch road has been sequentially connected in series gas fluorine absorption bottle, the second drier, second turn
Subflow meter, the second vacuum pump, third temperature, pressure measuring device and the second flow totalizer, second flow totalizer with
Piping connection between the first rotor flowmeter and the first vacuum pump.
2. stationary source exhaust gas sampling apparatus according to claim 1, it is characterised in that：The device for pressure measurement packet
Pitot tube and inclined tube micromanometer are included, Pitot tube, dirt fluorine sampling pipe and the thermocouple group of device for pressure measurement are combined into a sampling gun.
3. stationary source exhaust gas sampling apparatus according to claim 2, it is characterised in that：First temperature, pressure is surveyed
Measuring device includes thermometer and pressure vacuum gauge；The second temperature device for pressure measurement and third temperature, pressure measuring device with
The first temperature, pressure measuring device structure is identical.
4. stationary source exhaust gas sampling apparatus according to claim 3, it is characterised in that：It is put in the gas fluorine absorption bottle
It is equipped with gas fluorine absorbent, feeding pipe and discharge nozzle, described feeding pipe one end and gas fluorine branch are equipped at the top of the gas fluorine absorption bottle
Road connection, the other end are set in gas fluorine absorbent；Described discharge nozzle one end is connected to second drier, and the other end is located at
The upper end of gas fluorine absorbent in the gas fluorine absorption bottle.
5. stationary source exhaust gas sampling apparatus according to claim 4, it is characterised in that：The gas fluorine branch with it is described
There are two the identical gas fluorine absorption bottles of structure for series connection between second drier.
6. stationary source exhaust gas sampling apparatus according to claim 5, it is characterised in that：It is set on the dirt fluorine sampling pipe
It is equipped with filter cylinder, the filter cylinder front end is equipped with acquisition device, and the acquisition device is the acquisition mouth being obliquely installed, the acquisition mouth
On be provided with and be bent in an arc shape, the open end being bent in an arc shape is oppositely arranged with flue interior air-flow direction.
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| CN201820734128.4U CN208140440U (en) | 2018-05-17 | 2018-05-17 | A kind of stationary source exhaust gas sampling apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414299A (en) * | 2018-05-17 | 2018-08-17 | 太原海纳辰科仪器仪表有限公司 | A kind of stationary source exhaust gas sampling apparatus and the method for sampling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414299A (en) * | 2018-05-17 | 2018-08-17 | 太原海纳辰科仪器仪表有限公司 | A kind of stationary source exhaust gas sampling apparatus and the method for sampling |
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