CN102914453A - Flue gas sampling mixing method, flue gas sampling mixing device and on-line flue gas monitoring system - Google Patents
Flue gas sampling mixing method, flue gas sampling mixing device and on-line flue gas monitoring system Download PDFInfo
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- CN102914453A CN102914453A CN2012104055714A CN201210405571A CN102914453A CN 102914453 A CN102914453 A CN 102914453A CN 2012104055714 A CN2012104055714 A CN 2012104055714A CN 201210405571 A CN201210405571 A CN 201210405571A CN 102914453 A CN102914453 A CN 102914453A
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Abstract
The invention discloses a flue gas sampling mixing method, a flue gas sampling mixing device and an on-line flue gas monitoring system. The method includes: collecting sample gas in a flue or chimney in a multichannel manner; extracting the collected multichannel sample gas according to the preset proportion to obtain the sample gas extracted according to the preset proportion and corresponding to each channel; and uniformly mixing the sample gas extracted according to the preset proportion to obtain mixed sample gas. Since a spiral type gas flow channel is arranged in a mixing bottle, fed collected sample gas can enter the mixing bottle along the spiral type gas flow channel. By the spirally designed gas flow channel, sample gas trend is extended, mixing time for the sample gas is prolonged, and the collected sample gas can be more sufficiently uniformly in the mixing bottle.
Description
Technical field
The present invention relates to the monitoring of environment field, in particular, relate to a kind of flue gas sampling mixed method, device and smoke on-line monitoring system.
Background technology
Along with China's expanding economy, requirement to environmental protection is also constantly improving, therefore flue gas on-line monitoring equipment has all been installed at the fume emission mouth place of China in some major polluting sources fume emission industry, comes the emission behaviour of Real-Time Monitoring flue gas, avoids air is polluted.
Traditional flue gas on-line monitoring equipment can gather first sample gas mostly, carries out the flow process of mixing after sample gas filters, dewaters, and last detected sample gas enters in the measuring instrument to be measured.But the mixing arrangement of this flue gas on-line monitoring equipment can't make the sample gas that collects mix, especially when adopting the multichannel air inlet, the mixing arrangement of traditional flue gas on-line monitoring equipment can't prolong the incorporation time of sample gas and the gas circuit trend of sample gas, causes multi-path sample gas evenly to mix.
This shows, flue gas on-line monitoring equipment of the prior art is owing to the gas circuit trend of the incorporation time that can't prolong sample gas and sample gas causes and can't evenly mix the sample gas that collects as required.
Summary of the invention
In view of this, the invention provides a kind of flue gas sampling mixed method, device and smoke on-line monitoring system, to overcome flue gas on-line monitoring equipment of the prior art owing to the gas circuit of the incorporation time that can't prolong sample gas and sample gas is moved towards to cause and can't carry out mixed uniformly problem to the sample gas that collects as required.
For achieving the above object, the invention provides following technical scheme:
A kind of flue gas sampling mixed method comprises:
Multichannel gathers the sample gas in flue or the chimney;
The described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that corresponding described each road is extracted by preset ratio;
Evenly mix the described sample gas that extracts by preset ratio, obtain compound sample gas.
Preferably, the described multi-path sample gas that collects is being extracted by preset ratio, is obtaining corresponding described each road by the sample gas that preset ratio extracts, also comprising:
The sample gas that described each road is collected carries out condensation, removes water treatment.
Preferably, after obtaining compound sample gas, also comprise:
Measure the humidity of described compound sample gas;
When the humidity that records described compound sample gas is not in the humidity range of setting, carry out the alarm prompting.
Preferably, after obtaining compound sample gas, also comprise:
Described compound sample gas is carried out moisture filter and dedusting.
Preferably, after obtaining compound sample gas, also comprise:
When the pressure of described smoke collecting sample gas surpasses preset value, described smoke collecting sample gas is carried out pressure release process.
A kind of flue gas sampling mixing arrangement comprises:
Be arranged at a plurality of sampling probes in each road of flue or chimney;
A plurality of sampling pumps, and the corresponding sampling pump that connects of a described sampling probe are used for gathering the sample gas in flue or the chimney;
With described a plurality of sampling pumps corresponding a plurality of flowmeters that link to each other one by one respectively, be used for the described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that described each road of correspondence is extracted by preset ratio;
The bottom links to each other with a plurality of described flowmeters by conduit, and inside is provided with the hybrid bottle of spiral fashion gas flow path, and sample gas will evenly mix in the spiral fashion gas flow path of described hybrid bottle for importing by described flowmeter and conduit, obtain compound sample gas.
Preferably, in the described flue gas sampling mixing arrangement, also comprise:
Be arranged at the condenser between a plurality of described sampling pumps and the described a plurality of flowmeter, be used for the sample gas that described each road collects is carried out condensation, removes water treatment.
Preferably, in the described flue gas sampling mixing arrangement, also comprise:
By the humidity alarm that conduit and described hybrid bottle bottom are connected, be used for measuring the humidity of the compound sample gas in the described hybrid bottle, when the humidity that records described compound sample gas is not in the humidity range of setting, carry out the alarm prompting.
Preferably, in the described flue gas sampling mixing arrangement, also comprise:
Embed the filter core of crossing of described hybrid bottle bottleneck, be used for described compound sample gas is carried out moisture filter and dedusting.
Preferably, in the described flue gas sampling mixing arrangement, also comprise:
Be connected to the blowdown valve of described hybrid bottle bottle mouth position by conduit, be used for when the pressure of described smoke collecting sample gas surpasses preset value, described smoke collecting sample gas being carried out pressure release processing.
Preferably, in the described flue gas sampling mixing arrangement, also comprise:
Between the conduit that is arranged at described hybrid bottle bottom and the described a plurality of flowmeters and with described a plurality of flowmeters corresponding a plurality of electrical ball valves that link to each other one by one, be used for to the sample gas of hybrid bottle importing through the extraction of flowmeter equal-volume.
A kind of smoke on-line monitoring system comprises:
Aforesaid flue gas sampling mixing arrangement;
Be connected to the measuring instrument of described hybrid bottle bottle mouth position by conduit, for detection of described even mixed sample gas.
Via above-mentioned technical scheme as can be known, compared with prior art, the invention discloses a kind of flue gas sampling mixed method, device and smoke on-line monitoring system, a plurality of sampling pumps at first are set in flue or chimney, carry out multi-channel sampling, then the sample gas that collect extract by preset ratio more, obtain the sample gas that corresponding described each road is extracted by preset ratio, the described sample gas that extracts by preset ratio of last evenly mixing obtains compound sample gas.Owing to being provided with the spiral fashion gas flow path in the hybrid bottle, the sample gas that collects that passes into can enter in the described hybrid bottle along the spiral fashion gas flow path, the described gas flow path that designs in the spiral fashion mode has prolonged the trend of sample gas, prolonged equally the incorporation time of sample gas, made the full and uniform mixing in hybrid bottle of the sample gas that collects.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.
Fig. 1 is the embodiment of the invention one disclosed a kind of flue gas sampling mixed method process flow diagram;
Fig. 2 is the embodiment of the invention two disclosed another flue gas sampling mixed method process flow diagram;
Fig. 3 is the embodiment of the invention three disclosed another flue gas sampling mixed method process flow diagram;
Fig. 4 is the embodiment of the invention four disclosed a kind of flue gas sampling mixing arrangement structural representations;
Fig. 5 is the embodiment of the invention four disclosed another flue gas sampling mixing arrangement structural representation;
Fig. 6 is the embodiment of the invention four disclosed another flue gas sampling mixing arrangement structural representation;
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The invention discloses a kind of flue gas sampling mixed method, device and smoke on-line monitoring system, to overcome flue gas on-line monitoring equipment of the prior art owing to the gas circuit of the incorporation time that can't prolong sample gas and sample gas is moved towards to cause and can't carry out mixed uniformly problem to the sample gas that collects as required.
Embodiment one
The embodiment of the invention one disclosed a kind of flue gas sampling mixed method, its process flow diagram mainly may further comprise the steps as shown in Figure 1:
Step S11: multichannel gathers the sample gas in flue or the chimney;
In the process of execution in step S11, at first, in flue or chimney, divide the road; Then, settle respectively sampling probe in ready-portioned each road, sampling probe is connected in each sampling pump one by one; At last, each sampling probe gathers respectively the sample gas in its place road under the driving of the sampling pump that connects separately, obtain thus the sample gas in each road of described flue or chimney, and the sample gas in described each road that collects is the flue gas of flue or chimney Nei Gelu.
Step S12: the described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that corresponding described each road is extracted by preset ratio;
In the process of the extraction in execution in step S12, one according to default required bulking value, obtains the bulking value of preset ratio in the sample gas in each road that gets access to from carry out above-mentioned steps S11 process.
Perhaps, its two,, as benchmark the sample gas in other roads is extracted with the road of the sample gas of the minimum volume that gets access in each road, extract the sample gas with the sample gas equal proportion of minimum volume, the amount of the sample gas in each road that guarantees to collect extracts by preset ratio.
Step S13: evenly mix the described sample gas that extracts by preset ratio, obtain compound sample gas.
In the process of execution in step S13, the sample conductance that extracts by preset ratio that obtains is entered in the described hybrid bottle, be provided with the spiral fashion gas flow path in the hybrid bottle, the described sample gas that respectively extracts by preset ratio that passes into can enter in the described hybrid bottle along the spiral fashion gas flow path, the described gas flow path that designs in the spiral fashion mode has prolonged the trend of sample gas, prolong equally the incorporation time of sample gas, made the full and uniform mixing in mixing arrangement of the sample gas that collects, obtained compound sample gas.
Via above-mentioned technical scheme as can be known, compared with prior art, the present embodiment is by arranging a plurality of sampling probes in flue or chimney, carry out multiple spot, along separate routes sampling, then the sample gas that collects in described each road by flowmeter control enters the amount of capacity the hybrid bottle, assurance obtains the sample gas that extracts by preset ratio on corresponding each described road, the more described sample gas that respectively extracts by preset ratio is evenly mixed, and obtains compound sample gas.Owing to being provided with the spiral fashion gas flow path in the mixing arrangement, the sample gas that collects that passes into can enter mixing arrangement along the spiral fashion gas flow path, the described gas flow path that designs in the spiral fashion mode has prolonged the trend of sample gas, prolonged equally the incorporation time of sample gas, made the full and uniform mixing in mixing arrangement of the sample gas that collects.
Embodiment two
The embodiment of the invention two disclosed a kind of flue gas sampling mixed methods, its process flow diagram mainly may further comprise the steps as shown in Figure 2:
Step S21: multichannel gathers the sample gas in flue or the chimney;
In the process of execution in step S21, at first, in flue or chimney, divide the road; Then, settle respectively sampling probe in ready-portioned each road, sampling probe is connected in each sampling pump one by one; At last, each sampling probe gathers respectively the sample gas in its place road under the driving of the sampling pump that connects separately, obtain thus the sample gas in each road of described flue or chimney, and the sample gas in described each road that collects is the flue gas of flue or chimney Nei Gelu.
Step S22: the sample gas that described each road is collected carries out condensation, removes water treatment;
In the process of execution in step S22, the sample gas that will collect in flue or each road of chimney passes into the condenser, described sample gas is carried out condensation process, and then remove the moisture in the sample gas.
Step S23: the described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that corresponding described each road is extracted by preset ratio;
In the process of the extraction in execution in step S23, one according to default required bulking value, obtains the bulking value of preset ratio in the sample gas in each road that gets access to from carry out above-mentioned steps S21 process.
Perhaps, its two,, as benchmark the sample gas in other roads is extracted with the road of the sample gas of the minimum volume that gets access in each road, extract the sample gas with the sample gas equal proportion of minimum volume, the amount of the sample gas in each road that guarantees to collect extracts by preset ratio.
Step S24: evenly mix the described sample gas that extracts by preset ratio, obtain compound sample gas;
In the process of execution in step S24, the sample conductance that extracts by preset ratio that obtains is entered in the described hybrid bottle, be provided with the spiral fashion gas flow path in the hybrid bottle, the described sample gas that respectively extracts by preset ratio that passes into can enter in the described hybrid bottle along the spiral fashion gas flow path, the described gas flow path that designs in the spiral fashion mode has prolonged the trend of sample gas, prolong equally the incorporation time of sample gas, made the full and uniform mixing in mixing arrangement of the sample gas that collects, obtained compound sample gas.
Step S25: the humidity of measuring described compound sample gas;
When the humidity that records described compound sample gas is not in the humidity range of setting, carry out the alarm prompting.
Via above-mentioned technical scheme as can be known, compared with prior art, the present embodiment carried out first the process of condensation process to the sample gas in described each road that collects before the sample gas that will collect carries out by the preset ratio extraction, and the humidity of after obtaining compound sample gas, measuring described compound sample gas, when the humidity that records described compound sample gas is not in the humidity range of setting, carry out the alarm prompting, purpose is the moisture of removing in the sample gas, can avoid the instrument and meter in the moisture damage smoke on-line monitoring system in the sample gas, affect the accuracy of testing result.
Embodiment three
The embodiment of the invention three disclosed a kind of flue gas sampling mixed methods, its process flow diagram mainly may further comprise the steps as shown in Figure 3:
Step S31: multichannel gathers the sample gas in flue or the chimney;
In the process of execution in step S31, at first, in flue or chimney, divide the road; Then, settle respectively sampling probe in ready-portioned each road, sampling probe is connected in each sampling pump one by one; At last, each sampling probe gathers respectively the sample gas in its place road under the driving of the sampling pump that connects separately, obtain thus the sample gas in each road of described flue or chimney, and the sample gas in described each road that collects is the flue gas of flue or chimney Nei Gelu.
Step S32: the sample gas that described each road is collected carries out condensation, removes water treatment;
Step S33: the described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that corresponding described each road is extracted by preset ratio;
In the process of the extraction in execution in step S33, one according to default required bulking value, obtains the bulking value of preset ratio in the sample gas in each road that gets access to from carry out above-mentioned steps S31 process.
Perhaps, its two,, as benchmark the sample gas in other roads is extracted with the road of the sample gas of the minimum volume that gets access in each road, extract the sample gas with the sample gas equal proportion of minimum volume, the amount of the sample gas in each road that guarantees to collect extracts by preset ratio.
Step S34: evenly mix the described sample gas that extracts by preset ratio, obtain compound sample gas;
In the process of execution in step S34, the sample conductance that extracts by preset ratio that obtains is entered in the described hybrid bottle, be provided with the spiral fashion gas flow path in the hybrid bottle, the described sample gas that respectively extracts by preset ratio that passes into can enter in the described hybrid bottle along the spiral fashion gas flow path, the described gas flow path that designs in the spiral fashion mode has prolonged the trend of sample gas, prolong equally the incorporation time of sample gas, made the full and uniform mixing in mixing arrangement of the sample gas that collects, obtained compound sample gas.
Step S35: the humidity of measuring described compound sample gas; When the humidity that records described compound sample gas is not in the humidity range of setting, carry out the alarm prompting;
Step S36: described compound sample gas is carried out moisture filter and dedusting;
Embed the filter core of crossing of described hybrid bottle bottleneck, can absorb moisture and dust in the compound sample gas in the described hybrid bottle, guarantee to enter compound sample gas in the smoke on-line monitoring system without moisture and dust, avoid damaging the instrument and meter in the smoke on-line monitoring system, affect the accuracy of testing result.
Step S37: when the pressure of described smoke collecting sample gas surpasses preset value, described smoke collecting sample gas is carried out pressure release process.
The blowdown valve that is connected to described hybrid bottle bottle mouth position by conduit can according to the pressure automatic shutter switch of compound sample gas, be regulated the pressure of compound sample gas in hybrid bottle.When the pressure of compound sample gas surpassed preset value, the switch of blowdown valve was opened automatically, reduces the pressure of compound sample gas.
Describe a kind of flue gas sampling mixed method among the disclosed embodiment of the invention described above in detail, can adopt the device of various ways to realize for a kind of flue gas sampling mixed method disclosed in this invention, therefore the invention also discloses following a kind of flue gas sampling mixing arrangement, the below provides specific embodiment and is elaborated.
Embodiment four
The embodiment of the invention four discloses a kind of flue gas sampling mixing arrangement, and its structure mainly comprises as shown in Figure 4: a plurality of sampling probe A1, a plurality of sampling pump A2, a plurality of flowmeter A3 and hybrid bottle A4.
Be arranged at a plurality of sampling probe A1 in each road of flue or chimney;
A plurality of sampling pump A2, and the corresponding sampling pump A2 that connects of a described sampling probe A1 are used for gathering the sample gas in flue or the chimney;
With described a plurality of sampling pump A2 corresponding a plurality of flowmeter A3 that link to each other one by one respectively, be used for the described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that described each road of correspondence is extracted by preset ratio;
The bottom links to each other with a plurality of described flowmeter A3 by conduit, inside is provided with the hybrid bottle A4 of spiral fashion gas flow path, be used for to import by described flowmeter A3 and conduit that sample gas evenly mixes in the spiral fashion gas flow path of described hybrid bottle A4, obtain compound sample gas.
Described spiral fashion gas flow path links to each other by conduit is corresponding with described a plurality of flowmeter A3 in described hybrid bottle A4 bottom for being arranged in the described hybrid bottle A4.The described sample gas that respectively extracts by preset ratio that passes into can enter in the hybrid bottle A4 along the spiral fashion gas flow path, the described gas flow path that designs in the spiral fashion mode has prolonged the trend of sample gas, prolonged equally the incorporation time of sample gas, make the full and uniform mixing in hybrid bottle A4 of the sample gas that collects, obtain compound sample gas.
The above-mentioned use traffic meter A3 that mentions extracts in the process of the sample gas that collects in each described road, and one according to default required bulking value, obtains the bulking value of preset ratio in the sample gas in each road that gets access to from described a plurality of sampling pump A2.
Its two,, as benchmark the sample gas in other roads is extracted with the road of the sample gas of the minimum volume that gets access in each road, extract the sample gas with the sample gas equal proportion of minimum volume, the amount of the sample gas in each road that guarantees to collect extracts by preset ratio.
The above-mentioned a plurality of sampling probe A1 that mention, and with it each self-corresponding sampling pump A2, the number on the road of dividing in its concrete number and flue or the chimney is relevant.Divided 2 the tunnel in flue or chimney, this moment, this sampling apparatus comprised 2 sampling probe A1, and each self-corresponding 1 sampling pump A2, totally 2 sampling pump A2; Divided 15 the tunnel in flue or chimney, this moment, this sampling apparatus comprised 15 sampling probe A1, and each self-corresponding 1 sampling pump A2, totally 15 sampling pump A2.For the division on flue or the inner road of chimney, can divide according to the concrete length of flue or chimney, do not limit here.
Same, with a plurality of sampling pump A2 corresponding a plurality of flowmeter A3 that link to each other one by one respectively, its concrete number is identical with the number of employing pump A2 with current sampling probe A1.
Structure based on the disclosed a kind of flue gas sampling mixing arrangement of the invention described above, when utilizing this flue gas sampling mixing arrangement to carry out the flue gas mixing, be specially: at first, utilization is distributed in a plurality of sampling probe A1 in each road of dividing in flue or the chimney, then, gather respectively the sample gas in its place road under the driving of the sampling pump A2 that connects separately, obtain thus the sample gas in each road of described flue or chimney, the sample gas in described each road that collects is the flue gas of flue or chimney Nei Gelu.Then, by with described a plurality of sampling pump A2 respectively one by one the sample gas that in described each road, collects of the corresponding a plurality of flowmeter A3 controls that link to each other enter amount of capacity the hybrid bottle A4, guarantee that the sample gas that enters among the hybrid bottle A4 extracts by preset ratio.At last, the sample gas that is passed among the hybrid bottle A4 evenly mixes through the spiral fashion gas flow path, obtains compound sample gas.The disclosed flue gas sampling mixing arrangement of this embodiment of the invention is owing to being provided with the spiral fashion gas flow path among the hybrid bottle A4, the sample gas that collects that passes into can enter among the described hybrid bottle A4 along the spiral fashion gas flow path, the described gas flow path that designs in the spiral fashion mode has prolonged the trend of sample gas, prolonged equally the incorporation time of sample gas, made the full and uniform mixing in hybrid bottle of the sample gas that collects.
Embodiment five
The embodiment of the invention five discloses a kind of flue gas sampling mixing arrangement, and its structure comprises as shown in Figure 5: a plurality of sampling probe A1, a plurality of sampling pump A2, a plurality of flowmeter A3, hybrid bottle A4 and condenser A5.
Be arranged at a plurality of sampling probe A1 in each road of flue or chimney;
A plurality of sampling pump A2, and the corresponding sampling pump A2 that connects of a described sampling probe A1 are used for gathering the sample gas in flue or the chimney;
With described a plurality of sampling pump A2 corresponding a plurality of flowmeter A3 that link to each other one by one respectively, be used for the described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that described each road of correspondence is extracted by preset ratio;
The bottom links to each other with a plurality of described flowmeter A3 by conduit, inside is provided with the hybrid bottle A4 of spiral fashion gas flow path, be used for to import by described flowmeter A3 and conduit that sample gas evenly mixes in the spiral fashion gas flow path of described hybrid bottle A4, obtain compound sample gas;
Be arranged at the condenser A5 between a plurality of described sampling pump A2 and the described a plurality of flowmeter A3, be used for the sample gas that described each road collects is carried out condensation, removes water treatment.
The above-mentioned use traffic meter A3 that mentions extracts in the process of the sample gas that collects in each described road, and one according to default required bulking value, obtains the bulking value of preset ratio in the sample gas in each road that gets access to from described a plurality of sampling pump A2.
Its two,, as benchmark the sample gas in other roads is extracted with the road of the sample gas of the minimum volume that gets access in each road, extract the sample gas with the sample gas equal proportion of minimum volume, the amount of the sample gas in each road that guarantees to collect extracts by preset ratio.
The above-mentioned a plurality of sampling probe A1 that mention, and with it each self-corresponding sampling pump A2, the number on the road of dividing in its concrete number and flue or the chimney is relevant.Divided 2 the tunnel in flue or chimney, this moment, this sampling apparatus comprised 2 sampling probe A1, and each self-corresponding 1 sampling pump A2, totally 2 sampling pump A2; Divided 15 the tunnel in flue or chimney, this moment, this sampling apparatus comprised 15 sampling probe A1, and each self-corresponding 1 sampling pump A2, totally 15 sampling pump A2.For the division on flue or the inner road of chimney, can divide according to the concrete length of flue or chimney, do not limit here.
Same, with a plurality of sampling pump A2 corresponding a plurality of flowmeter A3 that link to each other one by one respectively, its concrete number is identical with the number of employing pump A2 with current sampling probe A1.
Structure based on the disclosed a kind of flue gas sampling mixing arrangement of the invention described above, when utilizing this flue gas sampling mixing arrangement to carry out the flue gas mixing, be specially: at first, utilization is distributed in a plurality of sampling probe A1 in each road of dividing in flue or the chimney, then, gather respectively the sample gas in its place road under the driving of the sampling pump A2 that connects separately, obtain thus the sample gas in each road of described flue or chimney, the sample gas in described each road that collects is the flue gas of flue or chimney Nei Gelu.Then, by with described a plurality of sampling pump A2 respectively one by one the sample gas that in described each road, collects of the corresponding a plurality of flowmeter A3 controls that link to each other enter amount of capacity the hybrid bottle A4, guarantee that the sample gas that enters among the hybrid bottle A4 extracts by preset ratio.At last, the sample gas that is passed among the hybrid bottle A4 evenly mixes through the spiral fashion gas flow path, obtains compound sample gas.
Via above-mentioned technical scheme as can be known, compared with prior art, the present embodiment carried out condensation process through condenser A5 to the sample gas in described each road that collects at the sample gas that will collect first before a plurality of flowmeter A3 carry out the equal-volume extraction, purpose is the moisture of removing in the sample gas, can avoid the instrument and meter in the moisture damage smoke on-line monitoring system in the sample gas, affect the accuracy of testing result.
Embodiment six
The embodiment of the invention six discloses a kind of flue gas sampling mixing arrangement, and its structure comprises as shown in Figure 6: a plurality of sampling probe A1, a plurality of sampling pump A2, a plurality of flowmeter A3, hybrid bottle A4, condenser A5 and humidity alarm A6.
Be arranged at a plurality of sampling probe A1 in each road of flue or chimney;
A plurality of sampling pump A2, and the corresponding sampling pump A2 that connects of a described sampling probe A1 are used for gathering the sample gas in flue or the chimney;
With described a plurality of sampling pump A2 corresponding a plurality of flowmeter A3 that link to each other one by one respectively, be used for the described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that described each road of correspondence is extracted by preset ratio;
The bottom links to each other with a plurality of described flowmeter A3 by conduit, inside is provided with the hybrid bottle A4 of spiral fashion gas flow path, be used for to import by described flowmeter A3 and conduit that sample gas evenly mixes in the spiral fashion gas flow path of described hybrid bottle A4, obtain compound sample gas;
Be arranged at the condenser A5 between a plurality of described sampling pump A2 and the described a plurality of flowmeter A3, be used for the sample gas that described each road collects is carried out condensation, removes water treatment.
By the humidity alarm A6 that conduit and described hybrid bottle A4 bottom are connected, be used for measuring the humidity of the compound sample gas in the described hybrid bottle A4, when the humidity that records described compound sample gas is not in the humidity range of setting, carry out the alarm prompting.
Via above-mentioned technical scheme as can be known, compared with prior art, the present embodiment is measured the humidity of described compound sample gas by humidity alarm A7, guarantee that further the humidity of compound sample gas is within preset value, avoid the instrument and meter in the moisture damage smoke on-line monitoring system in the sample gas, affect the accuracy of testing result.
Concrete, described flue gas sampling mixing arrangement also comprises: cross filter core A7.
Embed the excessively filter core A7 of described hybrid bottle A4 bottleneck, be used for described compound sample gas is carried out moisture filter and dedusting.
Concrete, described flue gas sampling mixing arrangement also comprises: blowdown valve A8.
Be connected to the blowdown valve A8 of described hybrid bottle A4 bottle mouth position by conduit, be used for when the pressure of described smoke collecting sample gas surpasses preset value, described smoke collecting sample gas being carried out pressure release processing.
When the pressure of compound sample gas surpassed preset value, the switch of blowdown valve A8 was opened automatically, reduces the pressure of compound sample gas.
Concrete, described flue gas sampling mixing arrangement also comprises: electrical ball valve A9.
Between the conduit that is arranged at described hybrid bottle A4 bottom and the described a plurality of flowmeter A3 and with described a plurality of flowmeter A3 corresponding a plurality of electrical ball valve A9 that link to each other one by one, for the sample gas that extracts by preset ratio through flowmeter A3 to hybrid bottle A4 importing.
Further, the invention also discloses a kind of smoke on-line monitoring system, comprising:
Aforesaid flue gas sampling mixing arrangement;
Be connected to the measuring instrument of described hybrid bottle A4 bottle mouth position by conduit, for detection of described even mixed sample gas.
The compound sample conductance that will obtain from the flue gas sampling mixing arrangement enters in the measuring instrument to detect, and then obtains the pollution condition of the flue gas in described flue or the chimney.
In sum:
The invention discloses a kind of flue gas sampling mixed method, device and smoke on-line monitoring system, a plurality of sampling pumps at first are set in flue or chimney, carry out multi-channel sampling, then the sample gas that collect extract by preset ratio more, obtain the sample gas that corresponding described each road is extracted by preset ratio, the described sample gas that extracts by preset ratio of last evenly mixing obtains compound sample gas.Owing to being provided with the spiral fashion gas flow path in the hybrid bottle, the sample gas that collects that passes into can enter in the described hybrid bottle along the spiral fashion gas flow path, the described gas flow path that designs in the spiral fashion mode has prolonged the trend of sample gas, prolonged equally the incorporation time of sample gas, made the full and uniform mixing in hybrid bottle of the sample gas that collects.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the disclosed method of embodiment, so description is fairly simple, relevant part partly illustrates referring to method and gets final product.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from the spirit or scope of the present invention, in other embodiments realization.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (12)
1. a flue gas sampling mixed method is characterized in that, comprising:
Multichannel gathers the sample gas in flue or the chimney;
The described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that corresponding described each road is extracted by preset ratio;
Evenly mix the described sample gas that extracts by preset ratio, obtain compound sample gas.
2. method according to claim 1, it is characterized in that, the described multi-path sample gas that collects is being extracted by preset ratio, obtaining corresponding described each road by the sample gas that preset ratio extracts, also comprising: the sample gas that described each road is collected carries out condensation, removes water treatment.
3. method according to claim 1 is characterized in that, after obtaining compound sample gas, also comprises:
Measure the humidity of described compound sample gas;
When the humidity that records described compound sample gas is not in the humidity range of setting, carry out the alarm prompting.
4. described method is characterized in that according to claim 1-3, after obtaining compound sample gas, also comprises:
Described compound sample gas is carried out moisture filter and dedusting.
5. described method is characterized in that according to claim 1-3, after obtaining compound sample gas, also comprises:
When the pressure of described smoke collecting sample gas surpasses preset value, described smoke collecting sample gas is carried out pressure release process.
6. a flue gas sampling mixing arrangement is characterized in that, comprising:
Be arranged at a plurality of sampling probes in each road of flue or chimney;
A plurality of sampling pumps, and the corresponding sampling pump that connects of a described sampling probe are used for gathering the sample gas in flue or the chimney;
With described a plurality of sampling pumps corresponding a plurality of flowmeters that link to each other one by one respectively, be used for the described multi-path sample gas that collects is extracted by preset ratio, obtain the sample gas that described each road of correspondence is extracted by preset ratio;
The bottom links to each other with a plurality of described flowmeters by conduit, and inside is provided with the hybrid bottle of spiral fashion gas flow path, and sample gas will evenly mix in the spiral fashion gas flow path of described hybrid bottle for importing by described flowmeter and conduit, obtain compound sample gas.
7. device according to claim 6 is characterized in that, also comprises:
Be arranged at the condenser between a plurality of described sampling pumps and the described a plurality of flowmeter, be used for the sample gas that described each road collects is carried out condensation, removes water treatment.
8. device according to claim 6 is characterized in that, also comprises:
By the humidity alarm that conduit and described hybrid bottle bottom are connected, be used for measuring the humidity of the compound sample gas in the described hybrid bottle, when the humidity that records described compound sample gas is not in the humidity range of setting, carry out the alarm prompting.
9. described device is characterized in that according to claim 6-8, also comprises:
Embed the filter core of crossing of described hybrid bottle bottleneck, be used for described compound sample gas is carried out moisture filter and dedusting.
10. described device is characterized in that according to claim 6-8, also comprises:
Be connected to the blowdown valve of described hybrid bottle bottle mouth position by conduit, be used for when the pressure of described smoke collecting sample gas surpasses preset value, described smoke collecting sample gas being carried out pressure release processing.
11. device according to claim 6 is characterized in that, also comprises:
Between the conduit that is arranged at described hybrid bottle bottom and the described a plurality of flowmeters and with described a plurality of flowmeters corresponding a plurality of electrical ball valves that link to each other one by one, be used for to the sample gas of hybrid bottle importing through the extraction of flowmeter equal-volume.
12. a smoke on-line monitoring system is characterized in that, comprising:
The described flue gas sampling mixing arrangement of any one among the claim 6-11;
Be connected to the measuring instrument of described hybrid bottle bottle mouth position by conduit, for detection of described even mixed sample gas.
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| CN201210405571.4A CN102914453B (en) | 2012-10-22 | 2012-10-22 | Flue gas sampling mixed method, device and smoke on-line monitoring system |
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| CN201210405571.4A CN102914453B (en) | 2012-10-22 | 2012-10-22 | Flue gas sampling mixed method, device and smoke on-line monitoring system |
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| CN102914453B (en) | 2016-03-23 |
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