CN217466370U - Industrial waste gas particulate matter testing arrangement that can condense - Google Patents
Industrial waste gas particulate matter testing arrangement that can condense Download PDFInfo
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Abstract
The utility model discloses an industrial waste gas particulate matter testing arrangement that can condense, including sampling mechanism, particulate matter collection mechanism that can condense, dry-type flowmeter and aspiration pump, sampling mechanism export and the entry linkage that particulate matter collection mechanism that can condense, particulate matter collection mechanism's export and the entry linkage of aspiration pump that can condense, the export of aspiration pump and dry-type flowmeter's entry linkage, it has connect a bypass pipeline to connect between the entry of aspiration pump and the export, the both ends of this bypass pipeline communicate with the entry and the export of aspiration pump respectively, be equipped with a flow control valve on this bypass pipeline. The utility model discloses testing arrangement can realize succinctly, high-efficient, the accurate particulate matter that can condense in the test flue gas.
Description
Technical Field
The utility model belongs to atmosphere environmental protection field relates to a particulate matter testing arrangement can condense of industrial waste gas.
Background
Coal-fired power generation is a main industry of coal consumption, and in recent years, along with the continuous and steady development of economy, the coal consumption is gradually increased. In recent years, atmospheric haze is sometimes serious, and through research, particulate matters in smoke generated by combustion of a coal-fired power plant are one of main reasons for haze formation. At the same time, in PM 2.5 Source emission inventory and zone PM 2.5 In the pollution control research, a plurality of similar concepts such as soluble salt, water-soluble ions, salt content and the like exist at the same time, and a cross concept exists, so that the understanding of the discharge of the particulate matters of the coal-fired power plant is broughtIt is difficult.
The particulate matters in the flue gas of the coal-fired power plant are divided into Filterable Particulate Matters (FPM) and Condensable Particulate Matters (CPM), and the standard "method for measuring particulate matters in exhaust gas of stationary pollution sources and sampling gaseous pollutants" (GB-T16157-1996) gives a clear definition to "particulate matters": particulate matter refers to solid and liquid particulate matter in the exhaust gases of fuels and other materials in combustion, synthesis, decomposition, and suspensions of various materials produced in mechanical processing, and "particulate matter" as defined herein can be calculated by various forms of filtration systems to calculate its mass concentration, and thus this fraction of "particulate matter" is filterable particulate matter. For condensable particulates, the EPA is defined as a type of particulate matter in stationary pollution source exhaust that condenses to a liquid or solid state within seconds of a temperature drop in the ambient conditions at the sampling location after leaving the flue. From the above two particulate definitions comparison, the difference is the targeted design of the test method.
In order to consider the testing integrity of particulate matters, filterable particulate matters and condensable particulate matters are comprehensively tested simultaneously, at the present stage, a testing Method for the filterable particulate matters in flue gas is mature and mainly carries out trapping through a filter membrane, however, the testing research for the condensable particulate matters is still in an initial stage, currently, EPA Method 202 is widely applied in the United states environmental protection agency, the Method comprises the steps of pumping by an air pump, entering a sampling system, passing through a smoke gun and a heating box, entering a condensation pipe, then entering two absorption bottles, a CPM filter and the last two absorption bottles, completing sampling, the CPM filter and the previous two absorption bottles are controlled to be below 30 ℃, condensable particulate matter precursors are condensed on the wall surface of the condensation pipe, then, the condensed organic matters and inorganic matters are recovered by deionized water and normal hexane, and the sum of the condensed organic matters and the inorganic matters is the concentration of the condensable particulate matters, the method has the defects of low equipment integration degree, insufficient portability and complex operation; the water vapor in the flue gas is condensed together in the condensation process, and part of SO is dissolved 2 And certain influence is caused on the test result. China industry Standard condensable in flue gas of coal-fired power plantThe particulate matter accumulation test Method (DL/T2091-2020) provides a condensable particulate matter test Method which is consistent with the principle of the EPA Method 202 test Method, and is a simplification of the EPA Method and has the same disadvantages. Therefore, in order to accurately test the condensable particles, a set of novel condensable particle testing system needs to be developed urgently, so that the condensable particles can be tested simply, efficiently and accurately, and the control on the condensable particles of the industrial waste gas is significant.
Disclosure of Invention
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide an industrial waste gas particulate matter testing arrangement that can condense, this testing arrangement can realize succinctly, high-efficient, accurate test in the flue gas particulate matter that can condense.
The utility model adopts the technical scheme as follows:
the utility model provides an industrial waste gas particulate matter testing arrangement that can condense, including sampling mechanism, particulate matter collection mechanism can condense, dry-type flowmeter and aspiration pump, the outlet of sampling mechanism is connected with the entry that particulate matter collection mechanism can condense, particulate matter collection mechanism's that can condense exit linkage with the entry of aspiration pump, the exit of aspiration pump and dry-type flowmeter's entry linkage, it has a bypass pipeline to connect between the entry of aspiration pump and the export, the both ends of this bypass pipeline communicate with the entry and the export of aspiration pump respectively, be equipped with a flow control valve on this bypass pipeline.
Preferably, the utility model discloses industrial waste gas particulate matter testing arrangement that can condense still includes the flue gas tachymeter, this flue gas tachymeter's side head set up in sampling mechanism sampling port department for measure the exhaust flow velocity of sampling mechanism sampling port.
Preferably, the exhaust gas velocimeter comprises a pitot tube, and a micro differential pressure gauge is connected to the pitot tube.
Preferably, the sampling mechanism includes the sampling rifle, the sampling rifle adopts and has the heating sampling rifle, and the appearance gas outlet of sampling rifle is connected with the entry that can condense particulate matter collection mechanism.
Preferably, the condensable particle collecting mechanism comprises a FPM filter membrane filter, a water bath, a circulating water pump, a drying mechanism, a CPM filter membrane filter and a plurality of stages of collecting units which are sequentially connected in series, the circulating water pump, the drying mechanism and the plurality of stages of collecting units which are sequentially connected in series can control the working temperature through the water bath, an inlet of the FPM filter membrane filter is connected with an outlet of the sampling mechanism, an outlet of the FPM filter membrane filter is connected with an integral gas inlet of the plurality of stages of collecting units which are sequentially connected in series, an integral gas outlet of the plurality of stages of collecting units which are sequentially connected in series is connected with an inlet of the drying mechanism, an outlet of the drying mechanism is connected with an inlet of the CPM filter membrane filter, and an outlet of the CPM filter membrane filter is connected with an inlet of the air extracting pump.
Preferably, the FPM filter membrane filter is arranged in a heating box, and a thermometer for measuring the heating temperature is arranged on the heating box.
Preferably, each stage of collecting unit comprises a snakelike condensing pipe and a filtering bottle, wherein the snakelike condensing pipe is provided with a gas inlet, a gas outlet, a condensed water inlet and a condensed water outlet, the filtering bottle is provided with a gas inlet and a gas outlet, and the gas outlet of the snakelike condensing pipe is connected with the gas inlet of the filtering bottle;
in the plurality of stages of collecting units, a gas outlet of a filter flask of the previous stage of collecting unit is connected with a gas inlet of a snake-shaped condensing pipe of the next stage of collecting unit; the condensed water outlet of the snakelike condenser pipe of the previous stage of collecting unit is connected with the condensed water inlet of the snakelike condenser pipe of the next stage of collecting unit; the gas inlet of the filter flask of the first-stage collection unit is connected with the outlet of the sampling mechanism, and the gas outlet of the filter flask of the last-stage collection unit is connected with the inlet of the drying mechanism; the condensed water inlet of the snakelike condenser pipe of the first-stage collecting unit is connected with the outlet of the circulating water pump, the circulating water pump is arranged in the water bath and can extract cooling water in the water bath, the condensed water outlet of the snakelike condenser pipe of the last-stage collecting unit is communicated with the water bath, and the suction bottle is arranged in the water bath.
Preferably, the drying mechanism comprises an impact absorption bottle, a gas outlet of the whole collection unit with a plurality of stages connected in series in sequence is connected with a gas inlet of the impact absorption bottle, and the gas outlet of the impact absorption bottle is connected with an inlet of the CPM filter membrane filter.
Preferably, the inlet of the suction pump is provided with a main valve located upstream of the bypass line and a pressure gauge located upstream of the main valve.
Preferably, the outlet of the dry flowmeter is provided with an activated carbon adsorber.
Preferably, the concentration of filterable particles in the exhaust gas is higher than 40mg/m 3 When in use, the sampling mechanism is provided with a pre-filter.
The utility model discloses following beneficial effect has:
the utility model discloses industrial waste gas particulate matter testing arrangement that can condense can extract waste gas through sampling mechanism, utilize the particulate matter that can condense to collect organic and inorganic particulate matter that can condense in the flue gas that the mechanism can absorb the extraction, utilize dry-type flowmeter can measure the volume of extraction flue gas, can provide air exhaust power through the aspiration pump, a bypass pipeline has been connect between the entry and the export of aspiration pump, be equipped with a flow control valve on this bypass pipeline, utilize the steerable air exhaust flow of this flow control valve, realize the constant speed sample, air exhaust speed and waste gas flow rate are the same promptly. The utility model discloses testing arrangement can realize succinctly, high-efficient, the accurate particulate matter that can condense in the test flue gas.
Drawings
Fig. 1 is the utility model discloses industrial waste gas particulate matter testing arrangement's that can condense overall schematic diagram.
Wherein, 1 is a sampling nozzle, 2 is a sampling gun, 3 is a pitot tube, 4 is a micro-differential pressure meter, 5 is a heating box, 51 is an FPM filter membrane filter, 52 is a thermometer, 6 is a primary serpentine condenser pipe, 7 is a secondary serpentine condenser pipe, 8 is a primary filter flask, 9 is a secondary filter flask, 10 is an impact absorption flask, 11 is a CPM filter membrane filter, 12 is a circulating water pump, 13 is a water bath, 14 is a condenser, 15 is a pressure gauge, 16 is a main valve, 17 is a flow regulating valve, 18 is an air pump, 19 is a dry flowmeter, and 20 is an activated carbon absorber.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The utility model discloses industrial waste gas particulate matter testing arrangement that can condense, FPM filter 51, one-level snakelike condenser pipe 6, one-level buchner flask 8, second grade snakelike condenser pipe 7, second grade buchner flask 9, aqueous vapor striking bottle 10, particulate matter that can condense, CPM filter 11, manometer 15, aspiration pump 18, dry flowmeter 19, activated carbon adsorber 20, pitot tube 3, differential pressure meter 4, heating cabinet 5, circulating water pump 12, water bath 13 and condenser 14 including sampling rifle 2, filterable particulate matter. The sampling gun 2 is a sampling gun with heating, and the sampling gun 2 is provided with a sampling nozzle 1. The pitot tube 3 is connected with a micro differential pressure gauge 4. The FPM filter membrane filter 51 is arranged in the heating box 5, the heating box 5 is provided with a thermometer 52 for measuring heating temperature, the inlet of the FPM filter membrane filter 51 is connected with a sample gas outlet of the sampling gun 2, the outlet of the FPM filter membrane filter 51 is connected with a gas inlet of the first-level serpentine condenser pipe 6, a gas outlet of the first-level serpentine condenser pipe 6 is connected with an inlet at the top of the first-level filter flask 8, a gas outlet at the top of the first-level filter flask 8 is connected with a gas inlet of the second-level serpentine condenser pipe 7, a gas outlet of the second-level serpentine condenser pipe 7 is connected with an inlet at the top of the second-level filter flask 9, a gas outlet at the top of the second-level filter flask 9 is connected with an inlet of a water vapor impact flask 10, the outlet of the water vapor impact flask 10 is connected with an inlet of a CPM filter membrane filter 11, the outlet of the CPM filter membrane filter 11 is connected with an inlet of a suction pump 18, the outlet of the suction pump 18 is connected with an inlet of a dry flowmeter 19, an outlet of the dry-type flowmeter 19 is provided with an activated carbon adsorber 20, and the activated carbon adsorber 20 can adsorb residual gaseous pollutants in the waste gas, so that the environment and the body health of the testers are protected. The inlet of the suction pump 18 is provided with a main valve 16 and a pressure gauge 15, the main valve 16 being located upstream of the bypass line and the pressure gauge 15 being located upstream of the main valve 16. A bypass pipeline is connected between the inlet and the outlet of the air pump 18, the two ends of the bypass pipeline are respectively communicated with the inlet and the outlet of the air pump 18, and a flow regulating valve 17 is arranged on the bypass pipeline. Circulating water pump 12, one-level suction flask 8, second grade suction flask 9, aqueous vapor striking bottle 10 all sets up in water bath 13, circulating water pump 12 directly absorbs the cooling water from water bath 13, circulating water pump 12's export and the comdenstion water entry linkage of one-level snakelike condenser pipe 6, the comdenstion water export of one-level snakelike condenser pipe 6 and the comdenstion water entry linkage of second grade snakelike condenser pipe 7, the comdenstion water export and the water bath 13 intercommunication of second grade snakelike condenser pipe 7, the comdenstion water export of second grade snakelike condenser pipe 7 directly discharges the comdenstion water to in the water bath 13, the temperature in the water bath 13 is controlled through condenser 14.
During sampling, sampling mouth 1 stretches into the waste gas flue and samples, and the entry setting of pitot tube 3 is near sampling mouth 1 simultaneously, can confirm the velocity of flow of the flue gas of sampling mouth 1 department through pitot tube 3 and differential pressure gauge 4, provides the regulation foundation for aspiration pump 18, finally realizes the constant speed sample, guarantees the measuring result, can also survey the temperature, pressure, velocity of flow, the flow isoparametric of getting waste gas simultaneously.
In the above scheme of the utility model, the specification of the sampling nozzle 1 can be borosilicate glass or quartz glass sampling head with 4.5mm, 6mm, 8mm and 10mm calibers; the FPM filter membrane in the FPM filter membrane filter 51 is made of glass fiber, and the interception efficiency of the FPM filter membrane on 0.3 mu m is more than 99.95%; the heat tracing sleeve is wrapped around the sampling gun 2, the heat tracing sleeve adopts a nickel-chromium grid line heat tracing sleeve, the heat transfer efficiency is high, the heating temperature is ensured, and the heating temperature for heating the sampling gun and the heat tracing pipe is 1701180 ℃. The outlet of the heating sampling gun is connected with the inlet of the FPM filter membrane filter 51 through a heat tracing pipe, the heating sampling gun is made of borosilicate glass or quartz glass pipe, and the inner pipe of the heat tracing pipe is made of PTFE (polytetrafluoroethylene), polypropylene, polyethylene or fluororubber pipe. The primary serpentine condenser pipe 6 and the secondary serpentine condenser pipe 7 are vertically arranged, the primary serpentine condenser pipe 6 is directly connected with the upper port of the primary suction flask 8, and a connecting port is subjected to frosting treatment and is provided with a fluororubber O-shaped ring; the second-stage snakelike condenser pipe 7 is directly connected with the upper end opening of the second-stage suction flask, and the connecting opening is frosted and provided with a fluororubber O-shaped ring. The water with the preset temperature in the two-stage snake-shaped condensation pipe is circulated through the circulating water pump 12, and the water bath 13 can adjust the water temperature to keep the circulating water temperature constant; the air pump 18 adopts a diaphragm pump or a rotary vane type air pump, has the function of automatically adjusting the flow, the sampling flow is 5130L/min, and when the load resistance of the sampling system is 20kPa, the flow is not lower than 10L/min. When the concentration of filterable particles in the smoke is higher than 40mg/m 3 A pre-filter such as a cyclone separator should be arranged behind the sampling nozzle. The connecting pipes among the mechanisms and units are made of PTFE, polypropylene, polyethylene or fluororubber pipes.
The utility model discloses industrial waste gas particulate matter testing arrangement that can condense inserts the test flue with pitot tube 3 when using, and pitot tube 3 is connected with differential pressure meter 4, reads the flue gas velocity of flow, selects suitable sampling mouth 1 size according to the flue gas velocity of flow.
The FPM filter membrane 51 and CPM filter membrane 11 are assembled correctly, the FPM filter membrane 51 is installed in the heating box 5, the filter membrane is loaded into the clean filter holder with the rough surface facing the air inlet direction, the filter membrane should be tightly pressed and air-tight, and then the components are connected in sequence according to fig. 1.
Before working, the air tightness of the whole system needs to be checked, the air pump 18 is started, the main valve 16 is opened, the flow regulating valve 17 is regulated, the pressure gauge 15 is observed by plugging the sampling nozzle, whether the air tightness of the system is good or not is checked, if air leakage is found, the air leakage is checked in sections and is blocked until the air tightness is qualified. After checking the air tightness, the test can be started by closing the flow control valve 17, closing the main valve 16 and closing the air pump 18.
During testing and sampling, the condenser 14 is started firstly, the adjusting temperature is not more than 30 ℃, after the water temperature in the water bath 13 reaches the set temperature, the sampling gun 2 is inserted into the testing flue and fixed, the circulating water pump 12 is opened, the air suction pump 18 is started, the main valve 16 is opened, the flow rate adjusting and adjusting valve 17 is read according to the micro differential pressure gauge 4, the air suction flow rate of the air suction pump 18 is ensured to be consistent with the flue gas flow rate, and constant-speed sampling is realized. The tail end of the system is provided with an activated carbon adsorber 20 which can adsorb residual gaseous pollutants in the waste gas and protect the environment and the body health of testing personnel.
Setting sampling time according to the flow velocity of the flue gas, and ensuring that the extracted flue gas volume is not less than 1m 3 (standard state), after sampling, using tweezers to take out the filter membranes in the FPM filter membrane filter 51 and the CPM filter membrane filter 11, wrapping with aluminum foil, sealing and storing or putting into a special container for storing, and making sampling records. The filter membrane in the FPM filter 51 is folded and placed in a clean glass container, deionized water is added until the filter membrane is completely immersed, then the filter membrane is placed in an ultrasonic cleaner to be shaken and extracted for 3 times, each time for at least 2 minutes, and the extract liquor is transferred to an inorganic sample bottle. Then using normal hexane to shake and extract for 3 times,at least 2 minutes each time, the extracts were transferred to organic sample vials.
And (3) after sampling is finished, nitrogen purging:
(1) and transferring the liquid in the first-stage suction flask 8 and the second-stage suction flask 9 into a postposition impact type absorption flask 10, adding deionized water into the impact type absorption flask 10 to enable the liquid level to be higher than the air guide pipe orifice of the impact flask, then putting the flask head back, and reconnecting the first-stage serpentine condenser pipe 6, the second-stage serpentine condenser pipe 8 and the condenser 14.
(2) A nitrogen purge was connected to the condenser 14, and the sample was immediately purged with high purity nitrogen at a flow rate of about 10 liters/minute for 30 min.
After sampling is finished, processing the sample
(1) Transferring the liquid in the swept post-impact bottle 10 into an inorganic sample bottle, rinsing the primary serpentine condenser pipe 6, the primary suction flask 7, the secondary serpentine condenser pipe 8, the secondary suction flask 9, the post-impact bottle 10, the condenser 14 and the connecting pipeline for 2 times by using deionized water, and transferring the rinsing liquid into the inorganic sample bottle;
(2) and (3) respectively rinsing the primary serpentine condenser pipe 6, the primary suction flask 7, the secondary serpentine condenser pipe 8, the secondary suction flask 9, the rear impact flask 10, the condenser 14 and the connecting pipeline for 2 times by using acetone and n-hexane, and transferring the rinsing liquid to the organic sample bottle.
The inorganic sample bottle and the organic sample bottle are the total amount of inorganic and organic condensable particles in the extracted smoke, the content of the inorganic and organic condensable particles in the smoke is calculated according to the amount of the extracted smoke, and the sum of the inorganic and organic condensable particles is the content of the condensable particles.
According to the above technical scheme, the utility model has the following characteristics:
(1) the industrial waste gas condensable particle testing device has the advantages that the whole sampling process is accompanied by heat, the heating temperature is 1701180 ℃, the condensation loss of condensable particles in the sampling process can be prevented, and filterable particles and condensable particles in industrial waste gas can be simultaneously and accurately tested;
(2) the condensable particles in the condensed flue gas are collected through the CPM filter membrane filter by connecting the two stages of snake-shaped condensing pipes and the filter flask condensing units in series, so that the condensable particles in the flue gas can be more accurately measured;
(3) the utility model discloses two-stage snakelike condenser pipe, water bath, circulating water pump and rearmounted striking bottle are overall design among the condensable particle collection mechanism, have improved the error that the human factor arouses to and portability.
Claims (10)
1. The utility model provides an industrial waste gas particulate matter testing arrangement that can condense, characterized in that, including sampling mechanism, particulate matter collection mechanism can condense, dry-type flowmeter (19) and aspiration pump (18), sampling mechanism's export and the entry linkage of particulate matter collection mechanism can condense, the export of particulate matter collection mechanism can condense is connected with the entry linkage of aspiration pump (18), the export of aspiration pump (18) and the entry linkage of dry-type flowmeter (19), it has a bypass pipeline to connect between the entry and the export of aspiration pump (18), the both ends of this bypass pipeline communicate with the entry and the export of aspiration pump (18) respectively, be equipped with a flow control valve (17) on this bypass pipeline.
2. The apparatus for testing condensable particles in industrial waste gas as claimed in claim 1, further comprising an exhaust gas velocimeter, wherein a side head of the exhaust gas velocimeter is disposed at the sampling port of the sampling mechanism for measuring the flow rate of the exhaust gas at the sampling port of the sampling mechanism.
3. The industrial waste gas condensable particulate testing device according to claim 2, wherein the waste gas velocimeter comprises a pitot tube (3), and a micro differential pressure gauge (4) is connected to the pitot tube (3).
4. The industrial waste gas condensable particle testing device according to claim 1, wherein the sampling mechanism comprises a sampling gun (2), the sampling gun (2) is provided with a heating sampling gun, and a sample gas outlet of the sampling gun (2) is connected with an inlet of the condensable particle collecting mechanism.
5. The industrial waste gas condensable particulate matter testing device according to claim 1, wherein the condensable particulate matter collecting mechanism comprises an FPM filter membrane filter (51), a water bath (13), a circulating water pump (12), a drying mechanism, a CPM filter membrane filter (11) and a plurality of stages of collecting units connected in series in sequence, the circulating water pump (12), the drying mechanism and the plurality of stages of collecting units connected in series in sequence can control the working temperature through the water bath (13), an inlet of the FPM filter membrane filter (51) is connected with an outlet of the sampling mechanism, an outlet of the FPM filter membrane filter (51) is connected with a gas inlet of the plurality of stages of collecting units connected in series in sequence, a gas outlet of the plurality of stages of collecting units connected in series in sequence is connected with an inlet of the drying mechanism, and an outlet of the drying mechanism is connected with an inlet of the CPM filter membrane filter (11), the outlet of the CPM filter membrane filter (11) is connected with the inlet of a suction pump (18).
6. The apparatus for testing condensable particulate matter in industrial waste gas according to claim 5, wherein the FPM filter (51) is disposed in a heating chamber (5), and the heating chamber (5) is provided with a thermometer (52) for measuring a heating temperature.
7. The industrial waste gas condensable particle testing device according to claim 5, wherein each stage of the collecting unit comprises a serpentine condenser pipe and a filter flask, the serpentine condenser pipe is provided with a gas inlet, a gas outlet, a condensed water inlet and a condensed water outlet, the filter flask is provided with a gas inlet and a gas outlet, and the gas outlet of the serpentine condenser pipe is connected with the gas inlet of the filter flask;
in the plurality of stages of collecting units, a gas outlet of a filter flask of a previous stage of collecting unit is connected with a gas inlet of a snake-shaped condensing pipe of a next stage of collecting unit; the condensed water outlet of the snakelike condenser pipe of the previous stage of collecting unit is connected with the condensed water inlet of the snakelike condenser pipe of the next stage of collecting unit; the gas inlet of the filter flask of the first-stage collection unit is connected with the outlet of the sampling mechanism, and the gas outlet of the filter flask of the last-stage collection unit is connected with the inlet of the drying mechanism; the condensed water inlet of the snakelike condenser pipe of the first-stage collecting unit is connected with the outlet of the circulating water pump (12), the circulating water pump (12) is arranged in the water bath pot (13) and can extract the cooling water in the water bath pot (13), the condensed water outlet of the snakelike condenser pipe of the last-stage collecting unit is communicated with the water bath pot (13), and the filter flask is arranged in the water bath pot (13).
8. The industrial waste gas condensable particulate testing device according to claim 5, wherein the drying mechanism comprises an impact absorption bottle (10), a gas outlet of the whole collection unit of the plurality of stages connected in series in sequence is connected with a gas inlet of the impact absorption bottle (10), and a gas outlet of the impact absorption bottle (10) is connected with an inlet of the CPM filter membrane filter (11).
9. A test device for condensable particles in industrial exhaust gases according to claim 1, characterized in that the inlet of the suction pump (18) is provided with a main valve (16) and a pressure gauge (15), the main valve (16) being located upstream of the bypass line, the pressure gauge (15) being located upstream of the main valve (16); an activated carbon adsorber (20) is arranged at the outlet of the dry flowmeter (19).
10. The apparatus of claim 1, wherein the concentration of filterable particles in the exhaust gas is higher than 40mg/m 3 When in use, the sampling mechanism is provided with a pre-filter.
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