CN110208160A - A kind of measurement device and measuring method of flue gas total particulate - Google Patents
A kind of measurement device and measuring method of flue gas total particulate Download PDFInfo
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- CN110208160A CN110208160A CN201910622256.9A CN201910622256A CN110208160A CN 110208160 A CN110208160 A CN 110208160A CN 201910622256 A CN201910622256 A CN 201910622256A CN 110208160 A CN110208160 A CN 110208160A
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- filter membrane
- bottle
- cpm
- flue gas
- fpm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
- G01N5/02—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid by absorbing or adsorbing components of a material and determining change of weight of the adsorbent, e.g. determining moisture content
Abstract
The measurement device that the application discloses a kind of flue gas total particulate includes particle sampling head, FPM filter membrane, CPM filter membrane, pumping host, successively sequential connection particle sampling head, heat tracing sampling gun, coil condenser, condensate liquid receiving flask, postposition impact bottle, CPM filter membrane, ultrapure water absorption bottle, silica dehydrator bottle, pumping host, the condensate liquid receiving flask, postposition impact bottle, ultrapure water absorption bottle, silica dehydrator bottle are placed in water bath.FPM filter membrane is placed in particle sampling head, CPM filter membrane is packed into CPM filter membrane chamber, it will be in particle sampling head and heat tracing sampling gun insertion flue, starting pumping host, flue gas enter coil condenser condensation and collect, and measure organic phase, inorganic phase condensable particulate matter with the condensed fluid and CPM filter membrane of collection, and the particulate matter on FPM filter membrane, total particle object amount is obtained, synchronous acquisition, the measurement of CPM and FPM is realized, obtains representative TPM emissions data.
Description
Technical field
The present invention relates to the measurement device of flue gas particles determination techniques field more particularly to a kind of flue gas total particulate and
Measuring method.
Background technique
The existing stationary source discharged particle national standard test method in China is that " particulate matter is surveyed in Concentration in Fixed Pollutants Source
The fixed and gaseous pollutant method of sampling " (GB16157-1996) and " the measurement weight of stationary source exhaust gas low concentration particulate matter
Amount method " (HJ836-2017), with filter cylinder or filter membrane, to may filter that in exhaust gas, particulate matter (FPM) carries out trapping measurement.In fact,
In exhaust gas also containing filter cylinder or filter membrane trapping less than particulate matter and gaseous pollutant or steam substance, not in the above method
In measurement range.And these substances, since temperature, pressure change, can also condense into solid when leaving chimney and entering atmosphere
State or liquid particles object form plume, are discharged into atmosphere, exist usually in the form of nucleus of condensation, and aerodynamic diameter is less than
1 μm, belong to fine particle (Fine Particulate Matter), it is condensable particulate matter that U.S. EPA, which defines this substance,
(Condensable particulate Matter, CPM).That is, emission control has only been made to FPM at present by China,
It is controlled without the discharge to CPM.
The harm of CPM is that they leave after chimney enters atmospheric environment and changes as liquid or particulate solid,
It is entered in atmosphere in the form of the nuclei of condensation, continues that complicated atmospheric physics chemical process occurs, become coming for new PM2.5
Source.There are experts and scholars to study discharged from coal-fired boiler CPM both at home and abroad, unanimously think from the angle in " source-remittance ",
This substance emission level in an atmosphere and its pollution contribution of atmospheric environment can not be ignored, relevant government department should reinforce
The phase that monitoring, supervision and blowdown are calculated is established in the research of CPM monitoring technology, disposal of pollutants assessment and control way etc.
Close method system.
To the emission control limit value of FPM, the mg/m3 of 5 mg/m3~50 is had reached at present, in this level, according to the country
Research of the outer expert to CPM emission status, the concentration of emission and FPM of CPM is similar, in addition in some cases considerably beyond
The concentration of FPM.Therefore, from the further target cut down discharge of pollutant sources, improve ambient air quality, the row of CPM is controlled
It puts and has become extremely urgent problem.
TPM(Total Particulate Matter) definition: by same a exhaust gas for obtaining isokinetic sampling
FPM and CPM acquire the mode of measurement simultaneously, obtain FPM and CPM emissions data, sum of the two is TPM.
Using sampling gun, the multipoint constant-speed in flue samples the technical solution of the application, and completion may filter that particulate matter (FPM filter
Film) acquisition, gravimetric detemination FPM；The heat tracing flue gas for filtering out FPM collects condensate liquid through rapid condensation, then collects through CPM filter membrane
The particulate matter condensed measures the particulate matter composition weight in receiving flask, impact bottle and CPM filter membrane, adds up to and obtain CPM result；
It is discharged after the purified drying of flue tail gas.The sum of FPM and CPM are used as TPM monitoring result.
Summary of the invention
The purpose of the present invention: it for the missing of the condensable particle monitoring in above-mentioned flue gas, proposes a kind of by logical
The synchronous acquisition that the efficient combination of FPM acquisition device and CPM acquisition device is realized to CPM and FPM, measurement are crossed, is obtained in flue gas
Accurate TPM emissions data.
The technical scheme of the present invention is realized as follows: a kind of measurement device of flue gas total particulate, including particulate matter are adopted
Sample head 1, heat tracing sampling gun 2, coil condenser 3, CPM filter membrane chamber 4, pumping host 7, silica dehydrator bottle 8, ultrapure water absorption bottle 9,
Postposition impacts bottle 11, condensate liquid receiving flask 12, water bath 14, FPM filter membrane 15, and be from left to right successively linked in sequence particle sampling
First 1, heat tracing sampling gun 2, coil condenser 3, condensate liquid receiving flask 12, postposition impact bottle 11, CPM filter membrane chamber 4, ultrapure water absorb
Bottle 9, silica dehydrator bottle 8, pumping host 7, the water bath 14 are divided into the left slot 142 of water bath, water bath along left and right directions
Right slot 141, the postposition impact bottle 11, condensate liquid receiving flask 12, circulating pump 13 are placed in the left slot 142 of water bath, described
Ultrapure water absorption bottle 9, silica dehydrator bottle 8 are placed in the right slot 141 of water bath；
14 bottom of water bath is provided with refrigeration compressor 10, and refrigeration compressor 10 is to realize particulate matter continuous mode
In, 20~30 DEG C of water temperature in the left slot 142 of water bath, the water temperature in the right slot 141 of water bath is 0 DEG C.
It is provided with FPM filter membrane clip in the particle sampling head 1, FPM filter membrane clip is fixed with FPM filter membrane 15, particle
It is fixed with temperature sensor 2 16 in object sampling head 1, is provided with CPM filter membrane clip in the CPM filter membrane chamber 4, in CPM filter membrane clip
It is fixed with CPM filter membrane.
The pumping host includes aspiration pump, flue gas pressures monitoring device, metering pump, the silica dehydrator bottle 8 with
It is evacuated the aspiration pump connection of host, flue is connect by Pitot tube with flue gas pressures monitoring device, for monitoring the cigarette in flue
Atmospheric pressure, metering pump are used to measure the exhaust gas volumn of aspiration pump discharge.
It is fixed with temperature sensor 3 17, electric heater unit 18 in the outer webs of the heat tracing sampling gun 2, is respectively used to
The heating of the temperature detection, heat tracing sampling gun 2 of heat tracing sampling gun 2.
On the pipeline of the CPM filter membrane chamber 4 and ultrapure water absorption bottle 9, and the position of CPM filter membrane 4 is provided with temperature
Galvanic couple 5 is spent, for monitoring the flue-gas temperature at CPM filter membrane, for monitoring flue-gas temperature at 20~30 DEG C.
It is provided with temperature sensor 1 on the connecting line of the silica dehydrator bottle 8 and pumping host 7, for monitoring
Flue-gas temperature.
The pumping host further includes control system, the temperature galvanic couple 5, temperature sensor 6 one, circulating pump 13,
Temperature sensor 2 16, temperature sensor 3 17, electric heater unit 18 are connect by route with control system, and control system is used for
Acquire and show, temperature galvanic couple 5, temperature sensor 6 one, temperature sensor 2 16, temperature sensor 3 17 reading, control system
The switch of control loop of uniting pump 13, electric heater unit 18.
The water inlet end of the circulating pump 13 is located in the left slot 142 of water bath, the water outlet of circulating pump 13 and snakelike condensation
The condensed water water inlet end of device 3 connects, in the condensed water water outlet connection left slot 142 of water bath of coil condenser 3.
The measuring method of the measurement device of the flue gas total particulate, includes the following steps:
Step 1；FPM filter membrane 15 is dried into constant weight, FPM filter membrane 15 is placed in particle sampling head 1, is filled in CPM filter membrane chamber
Enter CPM filter membrane, particle sampling head 1 and heat tracing sampling gun 2 are inserted into flue, fix heat tracing sampling gun 2 with triangular support bracket；
Step 2: starting refrigeration compressor 10,20~30 DEG C of water temperature in the left slot 142 of water bath, the water in the right slot 141 of water bath
Temperature is 0 DEG C；
Step 3: starting pumping host 7 starts to sample, flue gas is acquired by FPM filter membrane 15 in flue according to multi-point sampling mode
After may filter that particulate matter, after 105~120 DEG C of heat tracing sampling gun 2, into coil condenser 3, and by flue gas condensing to 30
DEG C hereinafter, the liquid that condenses out is collected in condensate liquid receiving flask 12；The cigarette that the non-total condensation of condensate liquid receiving flask 12 is collected
Gas enters further condensation collection in postposition impact bottle 11；
Step 4: the flow velocity that flue gas impacts bottle in postposition is controlled by being evacuated the aspiration pump of host, to simulated flue gas big
Physical change process in gas, flue gas stop 4~6 seconds in postposition impact bottle 11, and then flue gas is collected further through CPM filter membrane
The particulate matter grown up is condensed, temperature galvanic couple 5 is used to monitor the flue-gas temperature at CPM filter membrane, and flue-gas temperature is at 20~30 DEG C at this
Between, to imitate the particulate collection under room ambient conditions, flue gas is super equipped with 100ml by being placed in the right slot 141 of water bath
It is discharged after the silica dehydrator bottle 8 of the ultrapure water absorption bottle 9 and 200~300g silica gel of filtering high purity water is dry by aspiration pump；
Step 5: it after the exhaust gas volumn for collecting setting, closes circulating pump 13, close aspiration pump, the stopping heating of heat tracing sampling gun 2, tear open
Particle sampling head 1, heat tracing sampling gun 2, coil condenser 3 are unloaded, dismountable Chong Ji Shi bottle core is inserted into condensate liquid and is collected
In bottle 12 and fixed, the glass tube lower end of dismountable Chong Ji Shi bottle core is inserted into the liquid of condensate liquid receiving flask 12, then
It is purged with nitrogen to remove the SO dissolved in the liquid of condensate liquid receiving flask 12, postposition impact bottle 112Gas, flushing processes
In, 30 DEG C of < of CPM filter membrane device outlet temperature are persistently kept, prevents temperature change from causing the particulate matter being collected on CPM filter membrane device
It changes and influences measurement result, purging flow velocity is not less than 14L/min, and the time is no less than 1 hour；Meanwhile it being rinsed with water and adopting
It twice, is collected to its right end, heat tracing sampling gun 2,3 inner wall of coil condenser into inorganic phase special glass sample rifle filter membrane clip position；
Acetone rinsing filter membrane clip position is used twice, to collect special into organic phase to its right end, heat tracing sampling gun 2,3 inner wall of coil condenser again
Use vial；
Step 6: with the liquid collected in n-hexane extraction condensate liquid receiving flask 12 and postposition impact bottle 11, organic phase has been included in
Machine phase special glass bottle, remaining inorganic phase liquid are contained with inorganic phase special glass bottle.Successively use pure water, acetone ultrasonic extraction
The particulate matter trapped on CPM filter membrane is included in inorganic phase special glass bottle and organic phase special glass bottle respectively, then uses gravimetric method
Liquid in inorganic phase special glass, organic phase special glass bottle is measured inorganic, organic matter weight by constant weight, weighing respectively, and
Field blank is reduced as CPM total amount；Constant weight weighs FPM filter membrane, with adopt before value subtract difference and obtain FPM amount；CPM total amount and FPM amount
Adduction, obtains TPM total amount, the total particulate content of flue gas is calculated according to amount of flue gas emission.
The beneficial effects of the present invention are: the technological prevention of the application is referring to China's low concentration particulate matter monitoring method
HJ836-2017(gravimetric method) and U.S. EPA in 2017 recommend 202 method of Method, in conjunction with China's air contaminant treatment work
Make reality, on the basis of emphasizing total particulate (TPM) concept, proposes acquisition and measure the monitoring method of TPM.This method pair
The acquisition and measurement of FPM fully meets requirement of the HJ836-2017 to sampling apparatus and continuous mode；Acquisition and survey to CPM
It is fixed, meet the basic principle of 202 method of Method of EPA recommendation.By by the effective of FPM acquisition device and CPM acquisition device
Combination realizes synchronous acquisition, the measurement of CPM and FPM, obtains representative TPM emissions data.
Detailed description of the invention
The synchronous acquisition device of CPM and FPM Fig. 1 of the invention.
In figure: 1- particle sampling head, 2- heat tracing sampling gun, 3- coil condenser, 4-CPM filter membrane chamber, 5- temperature galvanic couple,
6- temperature sensor one, 7- pumping host, 8- silica dehydrator bottle, 9- ultrapure water absorption bottle, 10- refrigeration compressor, the punching of 11- postposition
Hit bottle, 12- condensate liquid receiving flask, 13- circulating pump, 14- water bath, the right slot of 141- water bath, the left slot of 142- water bath, 15-FPM
Filter membrane, 16- temperature sensor two, 17- temperature sensor three, 18- electric heater unit.
Specific embodiment
As shown in Fig. 1, a kind of measurement device of flue gas total particulate, comprising: particle sampling head 1, heat tracing sampling gun
2, coil condenser 3, CPM filter membrane chamber 4, temperature galvanic couple 5, temperature sensor 6 one, pumping host 7, silica dehydrator bottle 8, ultrapure water
Absorption bottle 9, refrigeration compressor 10, postposition impact bottle 11, condensate liquid receiving flask 12, circulating pump 13, water bath 14, FPM filter membrane 15,
Temperature sensor 2 16, temperature sensor 3 17, electric heater unit 18.
Specifically, from left to right successively sequential connection particle sampling head 1, heat tracing sampling gun 2, coil condenser 3, condensation
Liquid receiving flask 12, postposition impact bottle 11, CPM filter membrane chamber 4, ultrapure water absorption bottle 9, silica dehydrator bottle 8, pumping host 7, it is described
Water bath 14 is divided into the left slot 142 of water bath, the right slot 141 of water bath along left and right directions, and the postposition impacts bottle 11, condensate liquid
Receiving flask 12, circulating pump 13 are placed in the left slot 142 of water bath, and the ultrapure water absorption bottle 9, silica dehydrator bottle 8 are placed in water-bath
In the right slot 141 of slot.
14 bottom of water bath is provided with refrigeration compressor 10, and refrigeration compressor 10 is to realize that particulate matter measured
Cheng Zhong, 20~30 DEG C of water temperature in the left slot 142 of water bath, the water temperature in the right slot 141 of water bath is 0 DEG C.
It is provided with FPM filter membrane clip in the particle sampling head 1, FPM filter membrane clip is fixed with FPM filter membrane 15, particle
Temperature sensor 2 16 is fixed in object sampling head 1, for detecting flue-gas temperature.
It is provided with CPM filter membrane clip in the CPM filter membrane chamber 4, CPM filter membrane is fixed in CPM filter membrane clip.
It is fixed with temperature sensor 3 17, electric heater unit 18 in the outer webs of the heat tracing sampling gun 2, is respectively used to
The heating of the temperature detection, heat tracing sampling gun 2 of heat tracing sampling gun 2.
On the pipeline of the CPM filter membrane chamber 4 and ultrapure water absorption bottle 9, and the position of CPM filter membrane 4 is provided with temperature
Galvanic couple 5 is spent, for monitoring the flue-gas temperature at CPM filter membrane, for monitoring flue-gas temperature at 20~30 DEG C.
It is provided with temperature sensor 1 on the connecting line of the silica dehydrator bottle 8 and pumping host 7, for monitoring
Flue-gas temperature, flue-gas temperature are no more than 20 DEG C.
The water inlet end of the circulating pump 13 is located in the left slot 142 of water bath, the water outlet of circulating pump 13 and snakelike condensation
The condensed water water inlet end of device 3 connects, in the condensed water water outlet connection left slot 142 of water bath of coil condenser 3.
The pumping host includes aspiration pump, flue gas pressures monitoring device, control system, metering pump, the silica gel
Drying bottle 8 is connect with the aspiration pump of pumping host, and flue is connect by Pitot tube with flue gas pressures monitoring device, for monitoring cigarette
Flue gas pressures in road, metering pump are used to measure the exhaust gas volumn of aspiration pump discharge, the temperature galvanic couple 5, temperature sensor 6
One, circulating pump 13, temperature sensor 2 16, temperature sensor 3 17, electric heater unit 18 are connect by route with control system,
Control system is for acquiring and showing.Temperature galvanic couple 5, temperature sensor 6 one, temperature sensor 2 16, temperature sensor 3 17
Reading, control system control loop pump 13, the switch of electric heater unit 18.
Before sampling, FPM filter membrane 15 is dried into constant weight, FPM filter membrane 15 is placed in particle sampling head 1, in CPM filter membrane chamber
Particle sampling head 1 and heat tracing sampling gun 2 are inserted into flue by middle loading CPM filter membrane, fix heat tracing sampling with triangular support bracket
Rifle 2, starts refrigeration compressor 10, and 20~30 DEG C of water temperature in the left slot 142 of water bath, the water temperature in the right slot 141 of water bath is 0
DEG C, starting pumping host 7 is started to sample by multi-point sampling mode, and flue gas may filter that particle by the acquisition of FPM filter membrane 15 in flue
After object, after 105~120 DEG C of heat tracing sampling guns 2, into coil condenser 3, and by flue gas condensing to 30 DEG C hereinafter, condensation
The liquid to get off is collected in condensate liquid receiving flask 12；The flue gas that the non-total condensation of condensate liquid receiving flask 12 is collected enters postposition punching
Further condensation collection in bottle 11 is hit, condensate liquid receiving flask 12 and postposition impact bottle 11 are placed on 20~30 DEG C of the left slot of water bath
In 142；For the physical change process of simulated flue gas in an atmosphere, flue gas stops 4~6 seconds in postposition impact bottle 11, passes through pumping
The aspiration pump of gas host impacts the flow velocity of bottle to control flue gas in postposition, and then flue gas collects further condensation length through CPM filter membrane
Big particulate matter；Temperature galvanic couple 5 is used to monitor the flue-gas temperature at CPM filter membrane, and flue-gas temperature is between 20~30 DEG C, to mould
Particulate collection under imitative room ambient conditions, flue gas are super equipped with 100ml ultrafiltration high purity water by being placed in the right slot 141 of water bath
It is discharged after the silica dehydrator bottle 8 of absorbing pure water bottle 9 and 200~300g silica gel is dry by aspiration pump；In the right slot 141 of water bath
Silica dehydrator bottle 8 and ultrapure water absorption bottle 9 are called moisture separator, for absorbing the moisture in flue gas.
After collecting scheduled exhaust gas volumn, closes circulating pump 13, closes aspiration pump, the stopping heating of heat tracing sampling gun 2, disassembly
Grain object sampling head 1, heat tracing sampling gun 2, coil condenser 3, are inserted into condensate liquid receiving flask 12 for dismountable Chong Ji Shi bottle core
It is interior and fixed, it is then purged with nitrogen to remove the SO2 dissolved in the liquid of condensate liquid receiving flask 12, postposition impact bottle 11
Gas in flushing processes, persistently keeps 30 DEG C of < of CPM filter membrane device outlet temperature, prevents temperature change from causing to receive on CPM filter membrane device
The particulate matter collected changes and influences to measure effect, and purging flow velocity is not less than 14L/min, and the time is no less than 1 hour.So
Afterwards, it is rinsed with water sampling gun filter membrane clip position to its right end, heat tracing sampling gun 2,3 inner wall of coil condenser twice, collects into nothing
Machine phase special glass；Again with acetone rinsing filter membrane clip position to its right end, heat tracing sampling gun 2,3 inner wall of coil condenser twice,
It collects into organic phase special glass bottle.
With the liquid collected in n-hexane extraction condensate liquid receiving flask 12 and postposition impact bottle 11, organic phase is included in organic phase
Special glass bottle, remaining inorganic phase liquid are contained with inorganic phase special glass bottle.Successively use pure water, acetone ultrasonic extraction CPM
The particulate matter trapped on filter membrane is included in inorganic phase special glass bottle and organic phase special glass bottle respectively, then permanent with gravimetric method
Weight weighs, and the liquid of inorganic phase special glass, organic phase special glass bottle is measured inorganic, organic matter weight respectively, and reduce
Field blank is as CPM total amount；Constant weight weighs FPM filter membrane, with adopt before value subtract difference and obtain FPM amount；CPM total amount and FPM amount sum it up,
Obtain TPM total amount, calculate the total particulate content of flue gas according to amount of flue gas emission, inorganic phase, organic phase liquid assay organic matter,
Inorganic matter weight content is the conventional design of this field, is not being repeated here.
In addition, in description of the invention, it should be noted that unless otherwise clearly defined and limited, term " connection ",
" setting " shall be understood in a broad sense.It for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
It is directly connected to, is also possible to be indirectly connected with by intermediary, the connection being also possible to inside two elements.For this field
For those of ordinary skill, the concrete meaning of terms above in the present invention can be understood with concrete condition.Term " concordant ", " in
The orientation or positional relationship of the instructions such as the heart ", "left", "right", "vertical", "horizontal", "inner", "outside" is side based on the figure
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In conclusion the contents of the present invention are not limited in the above embodiments, those skilled in the art can be at this
Other embodiments are proposed within the guiding theory of invention, but these embodiments are included within the scope of the present invention.
Claims (8)
1. a kind of measurement device of flue gas total particulate, it is characterised in that: including particle sampling head (1), heat tracing sampling gun
(2), coil condenser (3), CPM filter membrane chamber (4), pumping host (7), silica dehydrator bottle (8), ultrapure water absorption bottle (9), postposition
Bottle (11), condensate liquid receiving flask (12), water bath (14), FPM filter membrane (15) are impacted, be from left to right successively linked in sequence particulate matter
Sampling head (1), heat tracing sampling gun (2), coil condenser (3), condensate liquid receiving flask (12), postposition impact bottle (11), CPM filter membrane
Chamber (4), ultrapure water absorption bottle (9), silica dehydrator bottle (8), pumping host (7), the water bath (14) is along left and right directions
It is divided into the left slot of water bath (142), the right slot of water bath (141), postposition impact bottle (11), follows at condensate liquid receiving flask (12)
Ring pump (13) is placed in the left slot of water bath (142), and the ultrapure water absorption bottle (9), silica dehydrator bottle (8) are placed in the water bath right side
In slot (141)；
Described water bath (14) bottom is provided with refrigeration compressor (10), and refrigeration compressor (10) is to realize that particulate matter measures
In the process, 20~30 DEG C of water temperature in the left slot of water bath (142), the water temperature in the right slot of water bath (141) are 0 DEG C；
It is provided with FPM filter membrane clip in the particle sampling head (1), FPM filter membrane clip is fixed with FPM filter membrane (15), particle
It is fixed with temperature sensor two (16) in object sampling head (1), CPM filter membrane clip, CPM filter are provided in the CPM filter membrane chamber (4)
CPM filter membrane is fixed in film folder.
2. the measurement device of flue gas total particulate according to claim 1, it is characterised in that: the pumping host includes
Aspiration pump, flue gas pressures monitoring device, metering pump, the silica dehydrator bottle (8) are connect with the aspiration pump of pumping host, flue
It is connect by Pitot tube with flue gas pressures monitoring device, for monitoring the flue gas pressures in flue, metering pump is for measuring pumping
Pump the exhaust gas volumn of discharge.
3. the measurement device of flue gas total particulate according to claim 2, it is characterised in that: the heat tracing sampling gun
(2) it is fixed with temperature sensor three (17), electric heater unit (18) in outer webs, is respectively used to the temperature of heat tracing sampling gun (2)
Degree detection, the heating of heat tracing sampling gun (2).
4. the measurement device of flue gas total particulate according to claim 3, it is characterised in that: the CPM filter membrane chamber (4)
Temperature galvanic couple (5) are provided on the pipeline of ultrapure water absorption bottle (9), and close to the position of CPM filter membrane (4), for monitoring CPM
Flue-gas temperature at filter membrane, for monitoring flue-gas temperature at 20~30 DEG C.
5. the measurement device of flue gas total particulate according to claim 4, it is characterised in that: the silica dehydrator bottle
(8) it is provided with temperature sensor one (6) on the connecting line of pumping host (7), for monitoring flue-gas temperature.
6. the measurement device of flue gas total particulate according to claim 5, it is characterised in that: the pumping host also wraps
Include control system, the temperature galvanic couple (5), temperature sensor (6) one, circulating pump (13), temperature sensor two (16), temperature
Sensor three (17), electric heater unit (18) are connect by route with control system, and control system is for acquiring and showing, temperature
Galvanic couple (5), temperature sensor (6) one, temperature sensor two (16), temperature sensor three (17) reading, control system control
The switch of circulating pump (13), electric heater unit (18).
7. the measurement device of flue gas total particulate according to claim 1-6, it is characterised in that: the circulation
The water inlet end of pump (13) is located in the left slot of water bath (142), the water outlet of circulating pump (13) and the condensed water of coil condenser (3)
The condensed water water outlet connection left slot of water bath (142) of water inlet end connection, coil condenser (3) is interior.
8. the measuring method of the measurement device of flue gas total particulate according to claim 6, it is characterised in that: including as follows
Step:
Step 1；FPM filter membrane (15) are dried into constant weight, FPM filter membrane (15) are placed in particle sampling head (1), in CPM filter membrane
It is packed into CPM filter membrane in chamber, by particle sampling head (1) and heat tracing sampling gun (2) insertion flue, fixes companion with triangular support bracket
Thermal sampling rifle (2)；
Step 2: starting refrigeration compressor (10), 20~30 DEG C of water temperature in the left slot of water bath (142), the right slot of water bath (141)
Interior water temperature is 0 DEG C；
Step 3: starting pumping host (7) starts to sample, flue gas is by FPM filter membrane (15) in flue according to multi-point sampling mode
After acquisition may filter that particulate matter, after 105~120 DEG C of heat tracing sampling gun (2), into coil condenser (3), and by flue gas
30 DEG C are condensed to hereinafter, the liquid condensed out is collected in condensate liquid receiving flask (12)；Condensate liquid receiving flask (12) is not complete
The flue gas that condensation is collected enters further condensation collection in postposition impact bottle (11)；
Step 4: the flow velocity that flue gas impacts bottle in postposition is controlled by being evacuated the aspiration pump of host, to simulated flue gas big
Physical change process in gas, flue gas stop 4~6 seconds in postposition impact bottle (11), and then flue gas is collected through CPM filter membrane into one
The particulate matter grown up of step condensation, temperature galvanic couple (5) are used to monitor the flue-gas temperature at CPM filter membrane, at this flue-gas temperature 20~
Between 30 DEG C, to imitate the particulate collection under room ambient conditions, flue gas is equipped with by being placed in the right slot of water bath (141)
By pumping after the ultrapure water absorption bottle (9) of 100ml ultrafiltration high purity water and the silica dehydrator bottle (8) of 200~300g silica gel are dry
Pump discharge；
Step 5: after the exhaust gas volumn for collecting setting, closing circulating pump (13), closing aspiration pump, heat tracing sampling gun (2) stop adding
Heat dismantles particle sampling head (1), heat tracing sampling gun (2), coil condenser (3), dismountable Chong Ji Shi bottle core is inserted into
In condensate liquid receiving flask (12) and fixed, the glass tube lower end of dismountable Chong Ji Shi bottle core is inserted into condensate liquid receiving flask (12)
Liquid in, then purged with nitrogen with remove condensate liquid receiving flask (12), postposition impact bottle (11) liquid in dissolve
SO2Gas in flushing processes, persistently keeps 30 DEG C of < of CPM filter membrane device outlet temperature, prevents temperature change from causing CPM filter membrane
The particulate matter being collected on device changes and influences measurement result, and purging flow velocity is not less than 14L/min, and it is small that the time is no less than 1
When；Meanwhile being rinsed with water sampling gun filter membrane clip position to its right end, heat tracing sampling gun (2), coil condenser (3) inner wall twice,
It collects into inorganic phase special glass；Again with acetone rinsing filter membrane clip position to its right end, heat tracing sampling gun (2), coil condenser
(3) inner wall twice, is collected into organic phase special glass bottle；
Step 6: with the liquid collected in n-hexane extraction condensate liquid receiving flask (12) and postposition impact bottle (11), organic phase is received
Enter organic phase special glass bottle, remaining inorganic phase liquid is contained with inorganic phase special glass bottle；
Successively with the particulate matter trapped on pure water, acetone ultrasonic extraction CPM filter membrane, it is included in inorganic phase special glass bottle respectively and has
Then machine phase special glass bottle is used gravimetric method constant weight, is weighed, by the liquid in inorganic phase special glass, organic phase special glass bottle
Body measures inorganic, organic matter weight respectively, and reduces Field blank as CPM total amount；Constant weight weighs FPM filter membrane, and adopts preceding value
Subtract difference and obtains FPM amount；CPM total amount and FPM amount sum it up, and obtain TPM total amount, the total particulate of flue gas is calculated according to amount of flue gas emission
Content.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111426521A (en) * | 2020-04-01 | 2020-07-17 | 国网河北省电力有限公司电力科学研究院 | Device and method for detecting content of particulate matters and heavy metal elements in tail gas |
| CN111879575A (en) * | 2020-07-22 | 2020-11-03 | 解光武 | Fixed pollution filterable and condensable particulate matter sampling device |
| WO2021098447A1 (en) * | 2019-11-18 | 2021-05-27 | 国电环境保护研究院有限公司 | Device and method for low-concentration total particle sampling of flue gas from thermal power plant |
| TWI774264B (en) * | 2021-03-11 | 2022-08-11 | 台灣積體電路製造股份有限公司 | Method and system for monitoring airborne molecular contaminants |
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2019
- 2019-07-11 CN CN201910622256.9A patent/CN110208160A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021098447A1 (en) * | 2019-11-18 | 2021-05-27 | 国电环境保护研究院有限公司 | Device and method for low-concentration total particle sampling of flue gas from thermal power plant |
| CN111426521A (en) * | 2020-04-01 | 2020-07-17 | 国网河北省电力有限公司电力科学研究院 | Device and method for detecting content of particulate matters and heavy metal elements in tail gas |
| CN111879575A (en) * | 2020-07-22 | 2020-11-03 | 解光武 | Fixed pollution filterable and condensable particulate matter sampling device |
| TWI774264B (en) * | 2021-03-11 | 2022-08-11 | 台灣積體電路製造股份有限公司 | Method and system for monitoring airborne molecular contaminants |
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