CN207456874U - Flue cross section matrix form real-time synchronization on-line sampling analytical equipment - Google Patents
Flue cross section matrix form real-time synchronization on-line sampling analytical equipment Download PDFInfo
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- CN207456874U CN207456874U CN201721218524.3U CN201721218524U CN207456874U CN 207456874 U CN207456874 U CN 207456874U CN 201721218524 U CN201721218524 U CN 201721218524U CN 207456874 U CN207456874 U CN 207456874U
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Abstract
The utility model is related to a kind of flue cross section matrix form real-time synchronization on-line sampling analytical equipments, including flue, sampling pipe, sample distributor and flue gas analyzer, one end of sampling pipe is arranged in flue, the other end of sampling pipe is connected with sampling distributor, sampling distributor is connected with flue gas analyzer, the sampling pipe is more, the sampling distributor includes smoke filter, two-bit triplet solenoid valve, sample flue gas collecting pipe, empty flue gas collecting pipe, smoke sampling pumps and flue gas drain pump, all sampling pipes are connected with smoke filter, smoke filter is connected with two-bit triplet solenoid valve, two-bit triplet solenoid valve is connected with sampling flue gas collecting pipe, sampling flue gas collecting pipe is connected with smoke sampling pump, two-bit triplet solenoid valve is connected with emptying flue gas collecting pipe, emptying flue gas collecting pipe is connected with flue gas drain pump.The utility model realizes the real-time synchronization on-line sampling analysis of entire flue cross section, ensures the real-time synchronization of sampling.
Description
Technical field
The utility model is related to a kind of flue cross section matrix form real-time synchronization on-line sampling analytical equipments.
Background technology
With the severization of environment protection emission requirement, coal unit progressively implements minimum discharge transformation, and minimum discharge is to fortune
The horizontal requirement with control response of row is greatly improved, and is the stable and high effective operation for ensureing minimum discharge, it is necessary to each
Item facility adjusts in time, simultaneously because fired power generating unit generation load changes greatly in recent years, and minimum discharge facility is pollutant
The device of process of refinement, therefore when unit load changes, it is necessary to according to NOx, SO in flue gas2、NH3、CO、CO2Etc. items refer to
The accuracy pair of the operation, at this time indices real time on-line monitoring result of the real-time testing result adjustment minimum discharge facility of target
Combustion adjustment plays key effect.
How NOx, SO in flue gas accurately tested and analyzed2、NH3、CO、CO2It waits indices, really reflect flue cross section
The distribution situation of gas component has become a big restraining factors of minimum discharge stable operation, and NOx, SO2、NH3、CO、CO2Deng
The detection and analysis of index are most by the way of sampling post analysis are extracted in flue, and existing flue sampling generally use single-point
Formula sampling, one drag two or one drag four sample modes, and since flue cross section is larger, and flue flow field, distribution of concentration are uneven,
Single-point type sampling, one drag two or one drag four sample modes cannot effectively reflect the distribution of gas component in entire flue cross section
Situation is unfavorable for the efficient stable economy operation of minimum discharge.
Utility model content
The purpose of the utility model is to overcome above-mentioned deficiency in the prior art, and a kind of structure design is provided and is closed
The flue cross section matrix form real-time synchronization on-line sampling analytical equipment of reason.The utility model can be according to the actual cross-section ruler of flue
The factors such as very little and flue gas analyzer response time determine flue cross section mesh generation mode, so as to be taken out using matrix form gridding method
The method for taking sampling realizes the real-time synchronization on-line sampling analysis of entire flue cross section, ensures the real-time synchronization of sampling, effectively
Reflect the real-time distribution situation of the indices of flue cross section same time, so as to be provided accurately for minimum discharge stable operation
Analysis result instructs the combustion adjustment of minimum discharge items facility, ensures the efficient of minimum discharge, economy, stable operation.Flue
The apparatus and method of section matrix form real-time synchronization on-line sampling analysis avoid single-point type sampling, one drag two or one drag four samplings
The limitation for causing analysis result of mode effectively objectively reflects the whole pollutant index situation at flue cross section.
The technical scheme in the invention for solving the above technical problem is：A kind of flue cross section matrix form real-time synchronization exists
Line sampling and analyzing device, it is characterised in that：Including flue, sampling pipe, sampling distributor and flue gas analyzer, one end of sampling pipe
It is arranged in flue, the other end of sampling pipe is connected with sampling distributor, and sampling distributor is connected with flue gas analyzer, described to adopt
Sample pipe is more, and the sampling distributor includes smoke filter, two-bit triplet solenoid valve, sampling flue gas collecting pipe, emptying cigarette
Gas collecting pipe, smoke sampling pump and flue gas drain pump, all sampling pipes are connected with smoke filter, smoke filter and two
Three-way magnetic valve is connected, and two-bit triplet solenoid valve is connected with sampling flue gas collecting pipe, and sampling flue gas collecting pipe is pumped with smoke sampling
It is connected, two-bit triplet solenoid valve is connected with emptying flue gas collecting pipe, and emptying flue gas collecting pipe is connected with flue gas drain pump.
Sampling distributor described in the utility model further includes flowmeter, flowmeter altogether there are two, two flowmeters are respectively
Flue gas flow meter and emptying flue gas flow meter are sampled, sampling flue gas collecting pipe is connected with sampling flue gas flow meter, samples flue gas stream
Gauge is connected with smoke sampling pump, and emptying flue gas collecting pipe is connected with emptying flue gas flow meter, empties flue gas flow meter and flue gas
Drain pump is connected, and smoke sampling pump is connected with flue gas analyzer.
Sampling distributor described in the utility model further includes switch board, and two-bit triplet solenoid valve is connected with switch board, flue gas
Sampling pump is connected with switch board, and flue gas drain pump is connected with switch board, and flowmeter is connected with switch board.
Sampling distributor described in the utility model further includes flue gas intake interface, flue gas intake interface and smoke filter phase
Even, flue gas intake interface is connected with sampling pipe.
Sampling distributor described in the utility model further includes flue gas sampling interface and flue gas emptying interface, flue gas sampling interface
It is connected with two-bit triplet solenoid valve, flue gas emptying interface is connected with two-bit triplet solenoid valve, flue gas sampling interface and sampling flue gas
Collecting pipe is connected, and flue gas empties interface and is connected with emptying flue gas collecting pipe.
The material of smoke filter described in the utility model is PTFE or glass fibre, the material of the filter core in smoke filter
Matter is ceramics.
A kind of method of sampling of flue cross section matrix form real-time synchronization on-line sampling analytical equipment, it is characterised in that：Including
Following steps：Flue gas in sampling pipe acquisition flue is delivered to sampling distributor, and flue gas enters smoke filter and is filtered；
1. when without flue gas analysis, adjusting two-bit triplet solenoid valve so that the gas circuit at sampling flue gas collecting pipe is in
Closed state empties the gas circuit at flue gas collecting pipe and is in opening state, and all flue gases after filtering are directed along emptying flue gas
Collecting pipe is discharged；
2. when carrying out flue gas analysis, two-bit triplet solenoid valve is adjusted so that the gas circuit at sampling flue gas collecting pipe, which is in, beats
Open state empties the gas circuit at flue gas collecting pipe and is closed, and all flue gases after filtering converge directed along sampling flue gas
Flow tube enters flue gas analyzer and carries out flue gas analysis；
3. when carrying out partial fume analysis, selection carries out the measuring point of flue gas analysis, adjusts two-bit triplet solenoid valve so that
The flue gas flow direction sampling flue gas collecting pipe of the measuring point of flue gas analysis is carried out, flue gas analysis is carried out subsequently into flue gas analyzer,
His flue gas enters emptying flue gas collecting pipe and is discharged.
The cross sectional shape of the utility model flue be rectangle or square, a length of L in the section of flue, the section of flue
Width for M, size is L × M（It is long × wide）When, mesh generation is carried out to the section of flue, mesh generation is according to flue gas analysis
Flue gas flow rate v is determined in the sample analysis time Δ t and sampling pipe of instrument, and length direction is L/ (n during mesh generation1·Δt·
V) rounding value lIt is long, width is M/ (n1Δ tv) rounding value mIt is wide, wherein n1For positive integer（1、2、3、4、
5……）, so that it is determined that the grid number in the section of flue is lIt is long×mIt is wide。
The quantity of the utility model sampling pipe and the grid number in the section of flue（lIt is long×mIt is wide）It is identical, adjacent sampling pipe it
Between length difference for n1Δ tv is both provided with sampling pipe in each grid.
The flow of smoke sampling pump described in the utility model and the flow set of flue gas drain pump are according to the transversal of sampling pipe
The grid number in the section of flue gas flow rate v and flue in area S, sampling pipe（lIt is long×mIt is wide）It determines, wherein the flow of smoke sampling pump
For S × v × n1, the flow of flue gas drain pump is S × v × n1×（lIt is long×mIt is wide-1）；Flue gas analyzer is sequentially to sampling pipe（I.e.（lIt is long
×mIt is wide）A air inlet gas circuit）Analysis is switched over, since the single gas circuit sample analysis time of flue gas analyzer is Δ t, and adjacent is adopted
Sample length of tube difference is n1Δ tv, and smoke sampling pump discharge is S × v × n1, flue gas emptying pump discharge for S × v ×
n1×（lIt is long×mIt is wide-1）, therefore when being sampled to the neighbouring sample inner tube smoke of the same time of measuring point in same section in flue
, in neighbouring sample pipe the time period of stay of flue gas be n1Δ t is sequentially cutting the air inlet gas circuit in each sampling pipe
When changing analysis, the sampling time interval of flue gas analyzer is adjusted to n1Δ t, so as to ensure that sequentially sampling analysis is flue
The flue gas of the interior same time of measuring point in same section, and then realize the on-line sampling analysis of matrix form real-time synchronization.
The utility model compared with prior art, has the following advantages and effect：
1）Matrix form sampling really reflects gas component distribution situation at entire flue cross section；
2）The sampling analysis of flue cross section gas component real-time synchronization can be achieved；
3）Ensure the data that sampling analysis result is the flue cross section same time, realize the real-time synchronization of sampling；
4）The high-efficiency and economic stable operation of minimum discharge can be effectively ensured in the process route of this patent.
Description of the drawings
Fig. 1 is the planar structure schematic diagram of the utility model embodiment 1.
Fig. 2 is the sampling distributor planar structure schematic diagram of the utility model embodiment 1.
Fig. 3 is the planar structure schematic diagram of the utility model embodiment 2.
Fig. 4 is the sampling distributor planar structure schematic diagram of the utility model embodiment 2.
Specific embodiment
Below in conjunction with the accompanying drawings and pass through embodiment the utility model is described in further detail, following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
Examples 1 and 2 are a kind of flue cross section matrix form real-time synchronization on-line sampling analytical equipment, including flue 1, sampling
Pipe 2, sampling distributor 3, flue gas analyzer 4.One end of sampling pipe 2 is arranged in flue 1, the other end of sampling pipe 2 and sampling
Distributor 3 is connected, and sampling distributor 3 is connected with flue gas analyzer 4.Wherein, the cross sectional shape of flue 1 is rectangle or pros
Shape, section here can be that any plane carries out flue 1 in section, need to only ensure cross sectional shape for rectangle or square i.e.
It can.Sampling pipe 2 is more.Multipoint acquisition fume sample is carried out by more sampling pipes 2 at a definite section of flue 1,
It is allocated into sampling distributor 3, is analyzed by flue gas analyzer 4 afterwards, it is real-time so as to fulfill the same section of flue gas, matrix form
Synchronous online sampling analysis.
Specifically, sampling distributor 3 includes flue gas sampling interface, flue gas emptying interface, flue gas intake interface, switch board
12nd, flowmeter 9, smoke filter 5, two-bit triplet solenoid valve 6, sampling flue gas collecting pipe 7, emptying flue gas collecting pipe 8, flue gas take
Sample pump 10 and flue gas drain pump 11.There are two flowmeter 9 is common, two flowmeters 9 are respectively to sample flue gas flow meter and emptying cigarette
Air-flow gauge.
A length of L in the section of flue 1, the width in the section of flue 1 is M, and the size in the section of flue 1 is L × M（It is long × wide）
When, mesh generation is carried out to the section of flue 1.Mesh generation is according to the sample analysis time Δ t of flue gas analyzer 4 and sampling
Flue gas flow rate v is determined in pipe 2, and length direction is L/ (n during mesh generation1Δ tv) rounding value lIt is long, width is
M/(n1Δ tv) rounding value mIt is wide, wherein n1For positive integer（1、2、3、4、5……）, so that it is determined that the section of flue 1
Grid number is lIt is long×mIt is wide。
Wherein, the quantity of sampling pipe 2 and the grid number in the section of flue 1（lIt is long×mIt is wide）It is identical, between adjacent sampling pipe 2
Length difference is n1Δ tv is both provided with sampling pipe 2 in each grid.Measuring point, l are both provided in each gridIt is long×
mIt is wideA measuring point is arranged along spiral inward direction, in the present embodiment in spiral inward direction adjacent measuring point it is corresponding
Two grids are adjacent mesh, and the sampling pipe 2 each set in adjacent mesh is adjacent sampling pipe 2.
The flow of smoke sampling pump 10 and the flow set of flue gas drain pump 11 are according to the cross-sectional area S of sampling pipe 2, sampling
The grid number in the section of flue gas flow rate v and flue 1 in pipe 2（lIt is long×mIt is wide）It determines, the flow of wherein smoke sampling pump 10 is S × v
×n1, the flow of flue gas drain pump 11 is S × v × n1×（lIt is long×mIt is wide-1）.
Flue gas analyzer 4 is sequentially to sampling pipe 2（I.e.（lIt is long×mIt is wide）A air inlet gas circuit）Analysis is switched over, is sequentially cut
It is to switch over analysis successively along spiral inward direction to change analysis.Since flue gas analyzer 4 is to single gas circuit sample point
The analysis time is Δ t, and 2 length of neighbouring sample pipe difference is n1Δ tv, and it is S × v × n that smoke sampling, which pumps 10 flows,1,
11 flow of flue gas drain pump is S × v × n1×（lIt is long×mIt is wide-1）, therefore to the same time of measuring point in same section in flue 1
When flue gas is sampled in neighbouring sample pipe 2, in neighbouring sample pipe 2 time period of stay of flue gas be n1Δ t, sequentially
When switching over analysis to the air inlet gas circuit in each sampling pipe 2, the sampling time interval of flue gas analyzer 4 is adjusted to n1·Δ
T so as to ensure flue gas that sequentially sampling analysis is the same same time of measuring point in section in flue 1, and then realizes matrix form
The on-line sampling analysis of real-time synchronization.
Flue gas analyzer 4 can realize NOx, SO in flue gas composition2、NH3、CO、CO2With the real-time synchronization on-line sampling point of Hg
Analysis.
All sampling pipes 2 are connected with flue gas intake interface, and flue gas intake interface is connected with smoke filter 5, and sampling pipe 2 is logical
Flue gas intake interface is crossed with smoke filter 5 to be connected.Smoke filter 5 is connected with two-bit triplet solenoid valve 6.
Two-bit triplet solenoid valve 6 is connected with flue gas sampling interface, and flue gas sampling interface is connected with sampling flue gas collecting pipe 7,
Two-bit triplet solenoid valve 6 is connected by flue gas sampling interface with sampling flue gas collecting pipe 7, sampling flue gas collecting pipe 7 and sampling cigarette
Air-flow gauge is connected, and sampling flue gas flow meter is connected with smoke sampling pump 10.Flue gas collecting pipe 7 is sampled by sampling flue gas flow
Meter is connected with smoke sampling pump 10, and smoke sampling pump 10 is connected with flue gas analyzer 4.
Two-bit triplet solenoid valve 6 is connected with flue gas emptying interface, and flue gas empties interface and is connected with emptying flue gas collecting pipe 8.
Two-bit triplet solenoid valve 6 empties interface by flue gas and is connected with emptying flue gas collecting pipe 8, emptying flue gas collecting pipe 8 and emptying cigarette
Air-flow gauge is connected, and emptying flue gas flow meter is connected with flue gas drain pump 11.Flue gas collecting pipe 8 is emptied by emptying flue gas flow
Meter is connected with flue gas drain pump 11.
Two-bit triplet solenoid valve 6 is connected with switch board 12, and smoke sampling pump 10 is connected with switch board 12, flue gas drain pump 11
It is connected with switch board 12, samples flue gas flow meter and emptying flue gas flow meter is connected with switch board 12.
Flue gas, which is first passed through after smoke filter 5 carries out dust-filtering, enters two-bit triplet solenoid valve 6, by two-bit triplet electromagnetism
Valve 6 is divided into two-way and respectively enters sampling flue gas collecting pipe 7 or emptying flue gas collecting pipe 8, samples the pumping of flue gas in flue gas collecting pipe 7
Power is taken to come from smoke sampling pump 10, and flow measurement is carried out by sampling flue gas flow meter；Empty flue gas in flue gas collecting pipe 8
It extracts power and comes from flue gas drain pump 11, and flow measurement is carried out by emptying flue gas flow meter.Two-bit triplet solenoid valve 6 is cut
It changes, the flow of smoke sampling pump 10 and the flow of flue gas drain pump 11 are controlled by switch board 12, and pass through sampling flue gas
Flowmeter and emptying flue gas flow meter are fed back.
The material of smoke filter 5 is PTFE or glass fibre, and the material of the filter core in smoke filter 5 is ceramics.
Examples 1 and 2 are each provided with the method for sampling of flue cross section matrix form real-time synchronization on-line sampling analytical equipment, bag
Include following steps：The flue gas that sampling pipe 2 is gathered in flue 1 is delivered to sampling distributor 3, and flue gas, which enters smoke filter 5, to carry out
Filtering；
1. when without flue gas analysis, adjusting two-bit triplet solenoid valve 6 so that at the gas circuit at sampling flue gas collecting pipe 7
Gas circuit at closed state, emptying flue gas collecting pipe 8 is in opening state, and all flue gases after filtering are directed along emptying cigarette
Gas collecting pipe 8 is discharged；
2. when carrying out flue gas analysis, two-bit triplet solenoid valve 6 is adjusted so that the gas circuit at sampling flue gas collecting pipe 7 is in
Opening state empties the gas circuit at flue gas collecting pipe 8 and is closed, and all flue gases after filtering are directed along sampling flue gas
Collecting pipe 7 carries out flue gas analysis into flue gas analyzer 4；
3. when carrying out partial fume analysis, selection carries out the measuring point of flue gas analysis, adjusts two-bit triplet solenoid valve 6 so that
The flue gas flow direction sampling flue gas collecting pipe 7 of the measuring point of flue gas analysis is carried out, flue gas analysis is carried out subsequently into flue gas analyzer 4,
Other flue gases enter emptying flue gas collecting pipe 8 and are discharged.
Embodiment 1.
Referring to Fig. 1 to Fig. 2.
The sample analysis time of flue gas analyzer 4 is Δ t=20s in the present embodiment, and flue gas sampling flow velocity is v in sampling pipe 2
=0.05m/s, the sectional dimension of flue 1 is 6m × 6m（It is long × wide）, n1When=2, length direction is L/ (n during mesh generation1·
Δ tv) rounding value lIt is long, i.e. the rounding value l of 6/ (2200.05)It is long=3, width is M/ (n during mesh generation1·Δ
Tv rounding value m)It is wide, i.e. the rounding value of 6/ (2200.05) is mIt is wide=3, wherein n1For 2, so that it is determined that the section of flue 1
Grid number be lIt is long×mIt is wide=3×3。
2 quantity of sampling pipe is corresponded to therewith as nine, and 2 length of neighbouring sample pipe difference is n1·Δt·v=2·20·
0.05=2m。
That is nine sampling pipes 2 be respectively No.1 sampling pipe, No. two sampling pipes, No. three sampling pipes, No. four sampling pipes, No. five adopt
Sample pipe, No. six sampling pipes, No. seven sampling pipes, No. eight sampling pipes and No. nine sampling pipes.No.1 sampling pipe measurement No.1 measuring point A1, two
Number sampling pipe measures No. two measuring point A2, and No. three sampling pipes measure No. three measuring point A3, and No. four sampling pipes measure No. four measuring point A4, No. five
Sampling pipe measures No. five measuring point A5, and No. six sampling pipes measure No. six measuring point A6, and No. seven sampling pipes measure No. seven measuring point A7, and No. eight are adopted
Sample pipe measures No. eight measuring point A8, and No. nine sampling pipes measure No. nine measuring point A9.It corresponding to therewith, two-bit triplet solenoid valve 6 shares nine,
Respectively No.1 two-bit triplet solenoid valve, No. two two-bit triplet solenoid valves, No. three two-bit triplet solenoid valves, No. four two-bit triplet electricity
Magnet valve, No. five two-bit triplet solenoid valves, No. six two-bit triplet solenoid valves, No. seven two-bit triplet solenoid valves, No. eight two-bit triplet electricity
Magnet valve and No. nine two-bit triplet solenoid valves.Smoke filter 5 shares nine, is respectively No.1 smoke filter, No. two flue dust mistakes
Filter, No. three smoke filters, No. four smoke filters, No. five smoke filters, No. six smoke filters, No. seven filtrating smoke dusts
Device, No. eight smoke filters and No. nine smoke filters.Flue gas intake interface shares nine, is respectively No.1 flue gas air inlet connecting
Mouth, No. two flue gas intake interfaces, No. three flue gas intake interfaces, No. four flue gas intake interfaces, No. five flue gas intake interfaces, No. six cigarettes
Gas intake interface, No. seven flue gas intake interfaces, No. eight flue gas intake interfaces and No. nine flue gas intake interfaces.Flue gas sampling interface is total to
There are nine, be respectively No.1 flue gas sampling interface, No. two flue gas sampling interfaces, No. three flue gas sampling interfaces, No. four flue gas samplings
Interface, No. five flue gas sampling interfaces, No. six flue gas sampling interfaces, No. seven flue gas sampling interfaces, No. eight flue gas sampling interfaces and nine
Number flue gas sampling interface.Flue gas emptying interface shares nine, respectively No.1 flue gas empties interface, No. two flue gases empty interfaces,
No. three flue gas emptying interfaces, No. four flue gas emptying interfaces, No. five flue gas emptying interfaces, No. six flue gas emptying interfaces, No. seven flue gases
Empty interface, No. eight flue gas emptying interfaces and No. nine flue gas emptying interfaces.No.1 measuring point A1, No. two measuring point A2, No. three measuring point A3,
No. four measuring point A4, No. five measuring point A5, No. six measuring point A6, No. seven measuring point A7, No. eight measuring point A8 and No. nine measuring point A9 are inside along spiral
Direction is arranged in order.
In the present embodiment, than No. eight sampling pipe range 2m of No. nine sampling pipes, No. eight sampling pipes sample pipe range 2m than No. seven, No. seven
Than No. six sampling pipe range 2m of sampling pipe, than No. five sampling pipe range 2m of No. six sampling pipes, than No. four sampling pipe range 2m of No. five sampling pipes,
Than No. three sampling pipe range 2m of No. four sampling pipes, than No. two sampling pipe range 2m of No. three sampling pipes, No. two sampling pipes are than No.1 sampling pipe
Long 2m.
No.1 sampling pipe is connected with No.1 flue gas intake interface, No.1 flue gas intake interface and No.1 smoke filter phase
Even, No.1 sampling pipe is connected by No.1 flue gas intake interface with No.1 smoke filter.No.1 smoke filter and No.1 two
Position-3-way solenoid valve is connected.No.1 two-bit triplet solenoid valve is connected with No.1 flue gas sampling interface, No.1 flue gas sampling interface and
It samples flue gas collecting pipe 7 to be connected, No.1 two-bit triplet solenoid valve is by No.1 flue gas sampling interface with sampling 7 phase of flue gas collecting pipe
Even, sampling flue gas collecting pipe 7 is connected with sampling flue gas flow meter, and sampling flue gas flow meter is connected with smoke sampling pump 10.Sampling
Flue gas collecting pipe 7 is connected by sampling flue gas flow meter with smoke sampling pump 10, smoke sampling pump 10 and 4 phase of flue gas analyzer
Even.No.1 two-bit triplet solenoid valve is connected with No.1 flue gas emptying interface, No.1 flue gas emptying interface and emptying flue gas collecting pipe 8
It is connected.No.1 two-bit triplet solenoid valve empties interface by No.1 flue gas and is connected with emptying flue gas collecting pipe 8, emptying flue gas confluence
Pipe 8 is connected with emptying flue gas flow meter, and emptying flue gas flow meter is connected with flue gas drain pump 11.Emptying flue gas collecting pipe 8 passes through
Emptying flue gas flow meter is connected with flue gas drain pump 11.No.1 two-bit triplet solenoid valve is connected with switch board 12, smoke sampling pump
10 are connected with switch board 12, and flue gas drain pump 11 is connected with switch board 12, and flowmeter 9 is connected with switch board 12.Flue gas first passes through
No.1 smoke filter enters No.1 two-bit triplet solenoid valve after carrying out dust-filtering, is divided into two by No.1 two-bit triplet solenoid valve
Road respectively enters sampling flue gas collecting pipe 7 or emptying flue gas collecting pipe 8.The switching of No.1 two-bit triplet solenoid valve, smoke sampling
The flow of pump 10 and the flow of flue gas drain pump 11 are controlled by switch board 12, and are passed through and sampled flue gas flow meter and emptying
Flue gas flow meter is fed back.
Remaining No. two sampling pipe, No. three sampling pipes, No. four sampling pipes, No. five sampling pipes, No. six sampling pipes, No. seven samplings
Pipe, No. eight sampling pipes and the corresponding connection relation of No. nine sampling pipes and No.1 sampling pipe are similar, it is only necessary to by above-mentioned connection relation
No.1 in component names is changed to No. two to No. nine successively, and those skilled in the art have been able to be clearly understood that the present embodiment
Technical solution, no longer repeat one by one as space is limited.
Successively to No.1 two-bit triplet solenoid valve, No. two two-bit triplet solenoid valves to No. nine two-bit triplet solenoid valves sequentially into
Gas gas circuit switches, and opens the flue gas gas circuit of selection analysis, closes not selection analysis flue gas gas circuit.
The flow set of smoke sampling pump 10 and flue gas drain pump 11 is according to 2 sectional area S=0.1m of sampling pipe2, sampling pipe 2
The grid number l in the section of interior flue gas flow rate v=0.05m/s and flue 1It is long×mIt is wide=9 determine, it is S that wherein smoke sampling, which pumps 10 flows,
×v×n1=0.1×0.05×2=0.01m3/ s, the flow of flue gas drain pump 11 is S × v × n1×（lIt is long×mIt is wide-1）=0.1×
0.05×2×(9-1)=0.08 m3/s 。
Flue gas analyzer 4 sequentially switches over analysis to 9 air inlet gas circuits, due to 4 single gas circuit sample of flue gas analyzer
Analysis time is 20s, and 2 length of each sampling pipe difference is 2m, and it is 0.01m that smoke sampling, which pumps 10 flows,3/ s, smoke sampling
10 flows are pumped as 0.08m3/ s, therefore when being sampled with section with the flue gas of time by each sampling pipe 2 in sampling pipe 2
Residence time is mutually divided into 40s, and when sequentially switching over analysis to the air inlet gas circuit in each sampling pipe 2, flue gas analyzer 4 is adopted
Sample time interval is adjusted to 40s, so as to ensure the flue gas of sequentially sampling analysis as the flue gas with section with the time, and then realizes real
When synchronous on-line sampling analysis.
Embodiment 2.
Referring to Fig. 3 to Fig. 4.
The sample analysis time of flue gas analyzer 4 is Δ t=40s in the present embodiment, and flue gas sampling flow velocity is v in sampling pipe 2
=0.05m/s, the sectional dimension of flue 1 is 8m × 6m（It is long × wide）, n1When=1, length direction is L/ (n during mesh generation1·
Δ tv) rounding value lIt is long, i.e. the rounding value l of 8/ (1400.05)It is long=4, width is M/ (n during mesh generation1·Δ
Tv rounding value m)It is wide, i.e. the rounding value of 6/ (1400.05) is mIt is wide=3, so that it is determined that the grid number in the section of flue 1 is
lIt is long×mIt is wide=4×3。
2 quantity of sampling pipe is corresponded to therewith as 12, and 2 length of neighbouring sample pipe difference is n1·Δt·v=1·40·
0.05=2m。
That is 12 sampling pipes 2 be respectively No.1 sampling pipe, No. two sampling pipes, No. three sampling pipes, No. four sampling pipes, No. five
Sampling pipe, No. six sampling pipes, No. seven sampling pipes, No. eight sampling pipes, No. nine sampling pipes, No. ten sampling pipes, ride on Bus No. 11 sampling pipe and
Ten No. two sampling pipes.No.1 sampling pipe measurement No.1 measuring point A1, No. two sampling pipes measure No. two measuring point A2, No. three sampling pipe measurements
No. three measuring point A3, No. four sampling pipes measure No. four measuring point A4, and No. five sampling pipes measure No. five measuring point A5, No. six sampling pipe measurements six
Number measuring point A6, No. seven sampling pipes measure No. seven measuring point A7, and No. eight sampling pipes measure No. eight measuring point A8, and No. nine sampling pipes measure No. nine
Measuring point A9, No. ten sampling pipes measure No. ten measuring point A10, ride on Bus No. 11 sampling pipe measurement ride on Bus No. 11 measuring point A11, and ten No. two sampling pipes are surveyed
Measure ten No. two measuring point A12.Correspond to therewith, two-bit triplet solenoid valve 6 shares 12, be respectively No.1 two-bit triplet solenoid valve,
No. two two-bit triplet solenoid valves, No. three two-bit triplet solenoid valves, No. four two-bit triplet solenoid valves, No. five two-bit triplet solenoid valves,
No. six two-bit triplet solenoid valves, No. seven two-bit triplet solenoid valves, No. eight two-bit triplet solenoid valves, No. nine two-bit triplet solenoid valves,
No. ten two-bit triplet solenoid valves, ride on Bus No. 11 two-bit triplet solenoid valve and ten No. two two-bit triplet solenoid valves.Smoke filter 5 is shared
12, be respectively No.1 smoke filter, No. two smoke filters, No. three smoke filters, No. four smoke filters, No. five
Smoke filter, No. six smoke filters, No. seven smoke filters, No. eight smoke filters, No. nine smoke filters, No. ten cigarettes
Dirt filter, ride on Bus No. 11 smoke filter and ten No. two smoke filters.Flue gas intake interface shares 12, is respectively No.1
Flue gas intake interface, No. two flue gas intake interfaces, No. three flue gas intake interfaces, No. four flue gas intake interfaces, No. five flue gas air inlets
Interface, No. six flue gas intake interfaces, No. seven flue gas intake interfaces, No. eight flue gas intake interfaces, No. nine flue gas intake interfaces, No. ten
Flue gas intake interface, ride on Bus No. 11 flue gas intake interface and ten No. two flue gas intake interfaces.Flue gas sampling interface shares 12, point
Not Wei No.1 flue gas sampling interface, No. two flue gas sampling interfaces, No. three flue gas sampling interfaces, No. four flue gas sampling interfaces, No. five
Flue gas sampling interface, No. six flue gas sampling interfaces, No. seven flue gas sampling interfaces, No. eight flue gas sampling interfaces, No. nine flue gas samplings
Interface, No. ten flue gas sampling interfaces, ride on Bus No. 11 flue gas sampling interface and ten No. two flue gas sampling interfaces.Flue gas emptying interface shares
12, be respectively No.1 flue gas emptying interface, No. two flue gas emptying interfaces, No. three flue gas emptying interfaces, No. four flue gas emptyings
Interface, No. five flue gas emptying interfaces, No. six flue gases empty interfaces, No. seven flue gases empty interfaces, No. eight flue gases empty interfaces, No. nine
Flue gas emptying interface, No. ten flue gas emptying interfaces, ride on Bus No. 11 flue gas emptying interface and ten No. two flue gas emptying interfaces.No.1 measuring point
A1, No. two measuring point A2, No. three measuring point A3, No. four measuring point A4, No. five measuring point A5, No. six measuring point A6, No. seven measuring point A7, No. eight measuring points
A8, No. nine measuring point A9, No. ten measuring point A10, ride on Bus No. 11 measuring point A11 and ten No. two measuring point A12 are arranged in order along spiral inward direction.
In the present embodiment, ten No. two sampling pipes sample pipe range 2m, than No. ten sampling pipe ranges of ride on Bus No. 11 sampling pipe than ride on Bus No. 11
2m, than No. nine sampling pipe range 2m of No. ten sampling pipes, than No. eight sampling pipe range 2m of No. nine sampling pipes, than No. seven samplings of No. eight sampling pipes
Pipe range 2m, than No. six sampling pipe range 2m of No. seven sampling pipes, than No. five sampling pipe range 2m of No. six sampling pipes, No. five sampling pipes are than No. four
Sample pipe range 2m, than No. three sampling pipe range 2m of No. four sampling pipes, than No. two sampling pipe range 2m of No. three sampling pipes, No. two sampling pipe ratios
No.1 sampling pipe range 2m.
No.1 sampling pipe is connected with No.1 flue gas intake interface, No.1 flue gas intake interface and No.1 smoke filter phase
Even, No.1 sampling pipe is connected by No.1 flue gas intake interface with No.1 smoke filter.No.1 smoke filter and No.1 two
Position-3-way solenoid valve is connected.No.1 two-bit triplet solenoid valve is connected with No.1 flue gas sampling interface, No.1 flue gas sampling interface and
It samples flue gas collecting pipe 7 to be connected, No.1 two-bit triplet solenoid valve is by No.1 flue gas sampling interface with sampling 7 phase of flue gas collecting pipe
Even, sampling flue gas collecting pipe 7 is connected with sampling flue gas flow meter, and sampling flue gas flow meter is connected with smoke sampling pump 10.Sampling
Flue gas collecting pipe 7 is connected by sampling flue gas flow meter with smoke sampling pump 10, smoke sampling pump 10 and 4 phase of flue gas analyzer
Even.No.1 two-bit triplet solenoid valve is connected with No.1 flue gas emptying interface, No.1 flue gas emptying interface and emptying flue gas collecting pipe 8
It is connected.No.1 two-bit triplet solenoid valve empties interface by No.1 flue gas and is connected with emptying flue gas collecting pipe 8, emptying flue gas confluence
Pipe 8 is connected with emptying flue gas flow meter, and emptying flue gas flow meter is connected with flue gas drain pump 11.Emptying flue gas collecting pipe 8 passes through
Emptying flue gas flow meter is connected with flue gas drain pump 11.No.1 two-bit triplet solenoid valve is connected with switch board 12, smoke sampling pump
10 are connected with switch board 12, and flue gas drain pump 11 is connected with switch board 12, and flowmeter 9 is connected with switch board 12.Flue gas first passes through
No.1 smoke filter enters No.1 two-bit triplet solenoid valve after carrying out dust-filtering, is divided into two by No.1 two-bit triplet solenoid valve
Road respectively enters sampling flue gas collecting pipe 7 or emptying flue gas collecting pipe 8.The switching of No.1 two-bit triplet solenoid valve, smoke sampling
The flow of pump 10 and the flow of flue gas drain pump 11 are controlled by switch board 12, and are passed through and sampled flue gas flow meter and emptying
Flue gas flow meter is fed back.
Remaining No. two sampling pipe, No. three sampling pipes, No. four sampling pipes, No. five sampling pipes, No. six sampling pipes, No. seven samplings
Pipe, No. eight sampling pipes, No. nine sampling pipes, No. ten sampling pipes, ride on Bus No. 11 sampling pipe and the corresponding connection relation of ten No. two sampling pipes
It is similar with No.1 sampling pipe, it is only necessary to which that the No.1 in above-mentioned connection relation component names is changed to No. two to ten No. two i.e. successively
Can, those skilled in the art have been able to be clearly understood that the technical solution of the present embodiment, no longer repeat one by one as space is limited.
Successively to No.1 two-bit triplet solenoid valve, No. two two-bit triplet solenoid valves to ten No. two two-bit triplet solenoid valves sequentially
Air inlet gas circuit switches, and opens the flue gas gas circuit of selection analysis, closes not selection analysis flue gas gas circuit.
The flow set of smoke sampling pump 10 and flue gas drain pump 11 is according to 2 sectional area S=0.1m of sampling pipe2, sampling pipe 2
The grid number l in the section of interior flue gas flow rate v=0.05m/s and flue 1It is long×mIt is wide=12 determine, it is S that wherein smoke sampling, which pumps 10 flows,
×v×n1=0.1×0.05×1=0.005m3/ s, the flow of flue gas drain pump 11 is S × v × n1×（lIt is long×mIt is wide-1）=0.1×
0.05×1×(12-1)=0.055 m3/s 。
Flue gas analyzer 4 sequentially switches over analysis to 12 air inlet gas circuits, due to 4 single gas circuit sample of flue gas analyzer
Analysis time is 40s, and 2 length of each sampling pipe difference is 2m, and it is 0.005m that smoke sampling, which pumps 10 flows,3/ s, flue gas row
Sky 11 flows of pump are 0.055m3/ s, therefore in sampling pipe 2 when being sampled with section with the flue gas of time by each sampling pipe 2
In residence time be mutually divided into 40s, when sequentially switching over analysis to the air inlet gas circuit in each sampling pipe 2, by flue gas analysis
4 sampling time interval of instrument is adjusted to 40s, so as to ensure the flue gas of sequentially sampling analysis as the flue gas with section with the time, and then
Realize the on-line sampling analysis of real-time synchronization.
Furthermore, it is necessary to illustrate, the specific embodiment described in this specification, the shape of parts and components is named
Title etc. can be different, and the above content described in this specification is only to the utility model structure example explanation.
The equivalence changes or simple change that all construction, feature and principles according to described in the utility model patent concept are done, are wrapped
It includes in the protection domain of the utility model patent.Those skilled in the art of the present invention can be to described
Specific embodiment does various modifications or additions or substitutes in a similar way, without departing from the knot of the utility model
Structure surmounts scope defined in the claims, all should belong to the protection range of the utility model.
Claims (6)
1. a kind of flue cross section matrix form real-time synchronization on-line sampling analytical equipment, it is characterised in that：Including flue, sampling pipe,
Sampling distributor and flue gas analyzer, one end of sampling pipe are arranged in flue, and the other end of sampling pipe is with sampling distributor phase
Even, sampling distributor be connected with flue gas analyzer, the sampling pipe be more, it is described sampling distributor including smoke filter,
Two-bit triplet solenoid valve, sampling flue gas collecting pipe, emptying flue gas collecting pipe, smoke sampling pump and flue gas drain pump, all samplings
Guan Junyu smoke filters are connected, and smoke filter is connected with two-bit triplet solenoid valve, two-bit triplet solenoid valve and sampling flue gas
Collecting pipe is connected, and sampling flue gas collecting pipe is connected with smoke sampling pump, and two-bit triplet solenoid valve is connected with emptying flue gas collecting pipe,
Emptying flue gas collecting pipe is connected with flue gas drain pump.
2. flue cross section matrix form real-time synchronization on-line sampling analytical equipment according to claim 1, it is characterised in that：Institute
State sampling distributor and further include flowmeter, flowmeter altogether there are two, two flowmeters are respectively to sample flue gas flow meter and emptying
Flue gas flow meter, sampling flue gas collecting pipe are connected with sampling flue gas flow meter, and sampling flue gas flow meter is connected with smoke sampling pump,
Emptying flue gas collecting pipe is connected with emptying flue gas flow meter, and emptying flue gas flow meter is connected with flue gas drain pump, smoke sampling pump
It is connected with flue gas analyzer.
3. flue cross section matrix form real-time synchronization on-line sampling analytical equipment according to claim 2, it is characterised in that：Institute
It states sampling distributor and further includes switch board, two-bit triplet solenoid valve is connected with switch board, and smoke sampling pump is connected with switch board, cigarette
Gas drain pump is connected with switch board, and flowmeter is connected with switch board.
4. flue cross section matrix form real-time synchronization on-line sampling analytical equipment according to claim 3, it is characterised in that：Institute
It states sampling distributor and further includes flue gas intake interface, flue gas intake interface is connected with smoke filter, and flue gas intake interface is with adopting
Sample pipe connects.
5. flue cross section matrix form real-time synchronization on-line sampling analytical equipment according to claim 4, it is characterised in that：Institute
It states sampling distributor and further includes flue gas sampling interface and flue gas emptying interface, flue gas sampling interface and two-bit triplet solenoid valve phase
Even, flue gas emptying interface is connected with two-bit triplet solenoid valve, and flue gas sampling interface is connected with sampling flue gas collecting pipe, flue gas emptying
Interface is connected with emptying flue gas collecting pipe.
6. flue cross section matrix form real-time synchronization on-line sampling analytical equipment according to claim 5, it is characterised in that：Institute
The material of smoke filter is stated as PTFE or glass fibre, the material of the filter core in smoke filter is ceramics.
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| Application Number | Priority Date | Filing Date | Title |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607370A (en) * | 2017-09-22 | 2018-01-19 | 华电电力科学研究院 | Flue cross section matrix form real-time synchronization on-line sampling analytical equipment and its method for sampling |
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2017
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107607370A (en) * | 2017-09-22 | 2018-01-19 | 华电电力科学研究院 | Flue cross section matrix form real-time synchronization on-line sampling analytical equipment and its method for sampling |
| CN107607370B (en) * | 2017-09-22 | 2024-03-15 | 华电电力科学研究院有限公司 | Flue section matrix type real-time synchronous online sampling analysis device and sampling method thereof |
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