CN208596062U - A kind of smoke sampling structure instructing each branch pipe ammonia spraying amount adjustment - Google Patents
A kind of smoke sampling structure instructing each branch pipe ammonia spraying amount adjustment Download PDFInfo
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- CN208596062U CN208596062U CN201621424769.7U CN201621424769U CN208596062U CN 208596062 U CN208596062 U CN 208596062U CN 201621424769 U CN201621424769 U CN 201621424769U CN 208596062 U CN208596062 U CN 208596062U
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Abstract
The utility model discloses a kind of smoke sampling structure for instructing each branch pipe ammonia spraying amount adjustment, belongs to smoke sampling field of structural design, instructs ammonia spraying amount to adjust by sampling and testing value, Lai Shixian SCR exports NOXBe uniformly distributed and minimum discharge requirement.The position of the characteristic sample point, number, number need structure and the functional characteristic of foundation ammonia-spraying grid branch pipe to determine；Raw-gas when the big flow sampling pump is replaced for Rapid replacement characteristic sample point in sampling gun, sampling branch pipe and sampling supervisor, is discharged through outlet；The sampling solenoid valve and blowback solenoid valve are for the sampling and blowback in the case of automatically controlling, and manual ball valve is with moving tube for the sampling and blowback in the case of manually controlling.It had not only been able to achieve the single-point or multiple spot monitoring function of CEMS monitoring system, but also can be monitored to the entire outlet test section for dividing region with functional characteristic according to ammonia-spraying grid manifold configuration, NOXConcentration determination value can adjust for each branch pipe ammonia spraying amount and provide direct, correspondence foundation.
Description
Technical field
The utility model relates to a kind of smoke sampling structures for instructing each branch pipe ammonia spraying amount adjustment, belong to smoke sampling structure and set
Meter field, is particularly suitable for coal-burning power plant SCR exhaust pass section flue gas monitoring, and architectural characteristic realizes that monitor value can instruct respectively
The adjustment of branch pipe ammonia spraying amount, division principle and the independent control structure for sampling, purging and side more particularly to characteristic sample point
Formula.
Background technique
With the increase of separate unit boiler controller system capacity, flue gas flow is also dramatically increased, and flue cross section is caused to significantly increase.Even
The flue of boiler and each environmental protection facility is connect by being bent, expanding with after deformation, leads to distribution of the flue gas in entire flue not
Uniformly.In the case where flue cross section is big, exhaust gas volumn and component are unevenly distributed, it is very unfavorable to bring to online auto monitoring
Trouble --- monitoring site does not have representativeness, prevent online auto monitoring from play monitoring flue gas emission and equipment run shape
The function of condition.
Especially in flue gas SCR system, flue is deformed into two channels after coming out from boiler economizer, and has continuous 90 °
Bending is expanded with lateral inclination, it is uneven to lead to flue gas flow field, and then be easy to cause region ammonia spraying amount and NOXAmount is not inconsistent, by urging
After agent layer purification reaction, some regions NO in exhaust pass is eventually led toXConcentration over-standard, some regions NH3Escapement ratio is high
Situation.Meanwhile in minimum discharge --- nitrogen oxides≤50mg/m3With NH3It is any under the requirement of the indexs such as escapement ratio≤3ppm
Operating condition requires precisely to adjust region ammonia spraying amount with load.It is most for the efficiency and stability for improving SCR system operation
Expert focuses more on the research to SCR device structure and catalyst, to the emphasis taken a sample to research of monitoring be also on mixed sampling,
And concern is lacked for the multiple spot independence sampling structure research established according to spray ammonia manifold configuration and functional characteristic, lead to not reality
Existing monitor value provides direct, correspondence foundation for the adjustment that ammonia spraying amount is distributed.
Currently, SCR exhaust pass CEMS is monitored using single-point or 2-3 monitoring site extracts flue gas composition aggregate sample respectively
Exiting flue gas component is monitored, spray ammonia automatic control system adjusts total ammonia spraying amount according to CEMS monitor value
It is whole.Therefore, when the CEMS monitoring numerical value of monitoring site flue gas cannot represent entire flue gas group timesharing, spray ammonia automatically controls system
The adjustable strategies made of uniting can aggravate misoperation --- the NO in flue gas of SCR system insteadXLasting discharge beyond standards and part
Region NH3Air preheater caused by escapement ratio is got higher quickly blocks exacerbation.
" SCR flue outlet CEMS monitoring numerical value cannot represent cigarette for 204359574 U of Chinese utility model patent CN solution
The problem of gas component ", i.e., the multiple sampled points of setting at SCR flue outlet extract flue gas composition aggregate sample respectively and come to outlet
Flue gas composition is monitored, and monitors NO in flue gas aggregate sample energy actual response flue gasXConcentration.But this technology cannot react cigarette
Which region NO in roadXConcentration height, which region NH3Escapement ratio is high, i.e., cannot provide any guidance to region spray ammonia adjustment and anticipate
See, can not prevent or mitigate NH3Caused by escape height the problems such as air preheater blocking.
Under the above conditions, if to realize NO in SCR exhaust passXConcentration distribution is uniform, up to standard and NH3Escapement ratio
Qualification just must spray ammonia to the region of spray ammonia branch pipe by way of artificial on-the-spot test by portable smoke detecting instrument
Amount is manually adjusted.It is entire to adjust process complexity, heavy workload for power plant, professional contingent need to be invited to operate, and short
Adjustment effect in time is difficult to ensure operation demand for a long time, under more loads, lacks practicability and economy.Therefore, most
Good mode is that the CEMS for being mounted on flue outlet is enable to monitor the flue gas composition of characteristic area on monitoring section respectively,
And realize that monitor value provides direct, correspondence foundation for the adjustment that ammonia spraying amount is distributed, and new system does not need to increase new prison
Host is surveyed, need to only be transformed on the basis of old CEMS system to sampling structure can be achieved with above-mentioned function.
Summary of the invention
The utility model is intended to provide a kind of smoke sampling structure for instructing each branch pipe ammonia spraying amount adjustment, the sampling structure energy
CEMS system is helped only to can be achieved with being monitored the flue gas composition of characteristic area in entire flue cross section with an analyzer,
And direct, correspondence foundation is provided for adjustment branch pipe ammonia spraying amount, and can be in existing CEMS system-based, according to actual demand
Upgrading is realized, convenient for promoting.
To achieve the goals above, the technical scheme adopted by the utility model is
A kind of smoke sampling structure instructing each branch pipe ammonia spraying amount adjustment, which is characterized in that including
- type fixed link, both ends are fixed on walling of flue,
- long sampling gun and short sampling gun, the sampling gun of different length are sequentially fixed in type fixed link, characteristic sampling
The position of point, number, number are corresponding with the structure of ammonia-spraying grid branch pipe, functional characteristic,
- sampling solenoid valve, is used to automatically control the flue gas for extracting any characteristic sample point, and difference is special when blocking sampling
Property sample point flue gas mixing, and for replace its act on
- moving tube and quick coupling are used to manually control the flue gas for extracting any characteristic sample point,
- CEMS connecting tube is fixed on the interior upper wall regions of big flow sampling pump discharge pipe.
The structure and functional characteristic for respectively spraying ammonia branch pipe according to denitrating system as a result, determine respectively on exhaust pass section
The main region of its ammonia spraying amount distribution, in the sprayed NH of each spray ammonia branch pipe3Setting and the spray ammonia branch on the center of concentration distribution
Manage corresponding characteristic sample point.Large-flow air pump is connect by sampling supervisor, connection transverse tube with each sampling branch pipe, is sampled
Sampling solenoid valve control large-flow air pump on branch pipe can individually extract the flue gas of any characteristic sample point.When characteristic sample point
When replacement, large-flow air pump energy Rapid replacement probe tube and the raw-gas in sampling gun, and be discharged by outlet, it contracts as far as possible
Aspiration pump extracts the time of unqualified flue gas by CEMS connecting tube in short CEMS cabinet.
Embodiment according to the present utility model can also make further optimization to the utility model, and the following are after optimization
The technical solution of formation:
Preferably, characteristic sample point is according to the sprayed NH of each spray ammonia branch pipe in monitoring cross section3It is dense in outlet monitoring cross section
It spends the center of distributed areas to determine, and corresponds the number of characteristic sample point and spray ammonia branch pipe regulating valve number.
Preferably, the subtended angle α of type fixed link is 30-60 °, and both ends are fixed on walling of flue, and material selection is anti abrasive
Stainless steel, with a thickness of 4-6mm.
Preferably, sampling gun end avoids a large amount of dust when sampling from entering sampling with the sampling mouth for being bent downwardly 90 °
Rifle, sampling mouth exceed type fixed link 2-5cm.
Preferably, the number for sampling solenoid valve is consistent with the number of characteristic sample point, i.e. the volume with spray ammonia branch pipe regulating valve
It number corresponds, sampling solenoid valve corresponding to equal length sampling gun is fixed on the sustained height gathered in case, sampling gun
Longer, the fixed position of corresponding sampling solenoid valve is higher, convenient for identification and control.
Preferably, it for the case where automatically controlling to the sampling of different characteristics sample point need to be used, is connected using connection transverse tube
Each sampling branch pipe and sampling are responsible for, using sampling solenoid valve control sampling, using blowback solenoid valve control blowback, due to SCR
There is very strong negative pressure (- 1640-- 1660Pa) in exhaust pass, so that blowback pump is not specially arranged.
For the case where manually controlling to the sampling of different characteristics sample point need to be used, using flexible moving tube and manually
The quick coupling of ball valve and moving tube and sampling branch pipe end manually controls the sampling of different characteristics sample point, meanwhile, it uses
Manual ball valve controls blowback.
Preferably, for the installation site of large-flow air pump as close as possible to CEMS cabinet, flow 20-40l/min can be in 2-
Raw-gas in 4s in Rapid replacement sampling supervisor, sampling branch pipe and sampling gun, and be discharged by outlet, CEMS connecting tube is stretched
The length of inlet/outlet pipeLFor 0.5-1m.
Preferably, the R1 of sampling supervisor, sampling branch pipe and sampling gun is 4-5mm, R2 5-8mm；The R3 of CEMS connecting tube
For 3-4mm, R4 4-5mm；The R5 of outlet is 10-18mm, R6 12-20mm.
Compared with prior art, the utility model has the beneficial effects that
(1) characteristic sample point represents control of the ammonia spraying amount in region by corresponding spray ammonia branch pipe, the number of characteristic sample point
It is corresponded with the number of spray ammonia branch pipe regulating valve, as certain characteristic sample point NOXWhen monitor value occurs abnormal, can directly it pass through
Corresponding branch pipe regulating valve is adjusted to be adjusted to the ammonia spraying amount of relevant range.
(2) connection transverse tube is able to achieve automatic control with sampling solenoid valve and is individually sampled to different characteristics sample point；It moves
Dynamic pipe, which is able to achieve to manually control with quick coupling, individually samples different characteristics sample point, and two kinds of structures can be at one
The monitoring to different zones flue gas composition on entire monitoring section is realized on CEMS analyzer.
(3) due to there is very strong negative pressure (- 1640-- 1660Pa) in SCR exhaust pass, so not needing to set in structure anti-
Pump is blown, but directly controls the blowing function of two kinds of structures using blowback solenoid valve and manual ball valve respectively.
(4) large-flow air pump close to the installation of CEMS cabinet can make the Primordial Qi in sampling supervisor, sampling branch pipe and sampling gun
Body is quickly replaced by the flue gas of characteristic sample point, and when making to replace characteristic sample point, the time of CEMS monitor value distortion is greatly shortened,
Since velocity of flue gas is much larger than the speed of evacuation of CEMS connecting tube in outlet, and CEMS connecting tube protrudes into outlet 0.5-1m,
It can make the entrance that outside air is avoided when CEMS pumping gas.
(5) it automatically controls sampling structure and had not only been able to achieve single-point sampling monitoring, but also be able to achieve multiple spot mixing sampling monitoring, moreover it is possible to
Realize multiple spot individually sampling monitoring in turn；It manually controls sampling structure and had not only been able to achieve single-point sampling monitoring, but also be able to achieve multiple spot list
Single wheel stream sampling monitoring.
Detailed description of the invention
Fig. 1 is a kind of structural plan for automatically controlling embodiment of the utility model；
Fig. 2 is a kind of structural plan for manually controlling embodiment of the utility model；
Fig. 3 is a kind of sampling mouth structure figure of the utility model；
Fig. 4 is Section A-A structural schematic diagram in Fig. 1 and Fig. 2；
Fig. 5 is section B-B structural schematic diagram in Fig. 1 and Fig. 2；
In figure: 1, type fixed link；2, characteristic sample point；3, long sampling gun；4, walling of flue；5, short sampling gun；6, auxiliary
Help cut-off rule；7, branch pipe is sampled；8, blowback branch pipe；9, gather case；10, solenoid valve is sampled；11, blowback solenoid valve；12, CEMS connects
Adapter tube；13, connection transverse tube；14, sampling supervisor；15 outlets；16, big flow sampling pump；17, quick coupling；18, moving tube；
19, manual ball valve；20, mouth is sampled.
Specific embodiment
It is the case where for need to automatically control to the sampling of different characteristics sample point 2, a kind of that each branch pipe ammonia spraying amount is instructed to adjust
Smoke sampling structure, as shown in Figure 1 comprising both ends are fixed on the type fixed link 1 on walling of flue 4, and the type of being fixed on is fixed
One end of long sampling gun 3 and short sampling gun 5 in bar 1, long sampling gun 3 and short sampling gun 5 is equipped with the sampling mouth for being bent downwardly 90 °
20, connection sampling branch pipe 7 in one end gathers case 9 for collecting and fixing all sampling branch pipes 7, blowback branch pipe 8, blowback electromagnetism
Valve 11, sampling solenoid valve 10, connection transverse tube 13 and sampling supervisor 14,14 one end of sampling supervisor connect big flow sampling pump 16,
CESM connecting tube 12 is put in the outlet 15 of big flow sampling pump 16.The case 9 that gathers is mounted on exhaust pass monitoring cross section
Place, sampling branch pipe 7 arrange from left to right according to the number of corresponding characteristic sample point 2, and the fixation position of blowback solenoid valve 11 is higher than
Solenoid valve 10 is sampled, sampling solenoid valve 10 corresponding to all long sampling guns 3 is fixed in identical height, and is higher than all short take
The sustained height that sampling solenoid valve 10 is fixed corresponding to sample rifle 5.The installation site of the big flow sampling pump 16 is close
CEMS analyzer, the length that flow 20-40l/min, CEMS connecting tube 12 protrudes into outlet 15 is 0.5-1m, and is fixed on
The interior upper wall regions of outlet.
It is the case where for need to manually control to the sampling of different characteristics sample point 2, a kind of that each branch pipe ammonia spraying amount is instructed to adjust
Smoke sampling structure, as shown in Figure 2 comprising the manual ball valve 19 being mounted on sampling branch pipe 7 is fixed on and gathers on case 9
14 one end of sampling supervisor connect moving tube 18, and quick coupling 17 is housed on the end of moving tube 18 and sampling branch pipe 7.It is described to take
Sample branch pipe 7 arranges to be fixed on from left to right according to the number of corresponding characteristic sample point 2 to be gathered in case 9, and branch is sampled in gathering case 9
The length of pipe 7 and the length of sampling gun are consistent, i.e., the sampling branch pipe 7 that long sampling gun 3 connects is longer, and what short sampling gun 5 connected takes
Sample branch pipe 7 is shorter.Meanwhile in gathering case 9, the fixation position of manual ball valve 19 is higher than shorter sampling on longer sampling branch pipe 7
The fixation position of manual ball valve 19 on branch pipe 7.The length of the moving tube 18 can connect the quick coupling on any sampling branch pipe
17。
When work, in automatic control structure, big flow sampling pump 16 passes through sampling supervisor 14, connection transverse tube 13, sampling branch
Pipe 7, sampling gun 3(or sampling gun 5) with sampling mouth 20 extract certain characteristic sample point 2 flue gas.Open some sampling solenoid valve 10
The flue gas for extracting corresponding characteristic sample point 2 simultaneously closes off blowback solenoid valve 11 and other sampling solenoid valves on the sampling branch pipe 7
10, realize the independent sampling to certain characteristic sample point 2, whether other blowback electromagnetism 11 can need according to the sampling branch pipe 7 connected
Blowback is wanted to decide whether to open.CEMS sampling pump extracts flue gas from outlet 15 by CEMS connecting tube 12.
In the case where constant dynamic characteristic sample point 2, structure realizes single-point sampling monitoring function at this time.It can be according to monitoring
NOXConcentration value individually adjusts the ammonia spraying amount of corresponding spray ammonia branch pipe, realizes NO at SCR exhaust passXConcentration on-line monitoring
Value and NO at total rowXThe consistency of concentration on-line monitoring value；
Multiple sampling solenoid valves 10 are opened simultaneously, and close blowback solenoid valve 11 corresponding with them and other samplings electricity
Magnet valve 10, structure realizes multiple spot mixing sampling monitoring function at this time.But cannot to spray ammonia branch pipe ammonia spraying amount adjustment provide directly,
The guidance of correspondence；
When structure face, some characteristic sample point 2 is individually sampled, and plans to want to sample next characteristic sample point 2
When, the blowback solenoid valve 11 being first turned on the corresponding sampling branch pipe 7 of next characteristic sample point 2, to the sampling branch pipe 7 with take
Sample rifle 3(or sampling gun 5) it is purged, the blowback solenoid valve 11 is closed after 1-2min.Then taking on the sampling branch pipe 7 is opened
Sample solenoid valve 10 simultaneously closes off sampling solenoid valve 10 corresponding to a characteristic sample point 2, so far realizes to characteristic sample point
2 Fast transforms.It can decide whether to open blowback solenoid valve 11,1- corresponding to a characteristic sample point 2 as needed
Turned off after 2min, realize to sampling branch pipe 7 corresponding to a upper characteristic sample point 2 and sampling gun 3(or sampling gun 5) blow
It sweeps.It is repeated the above process between all characteristic sample points 2, structure realizes multiple spot individually sampling monitoring function in turn at this time, herein
It in the process, can be according to the NO of monitoringXConcentration value individually adjusts the ammonia spraying amount of corresponding spray ammonia branch pipe, realizes the outlet SCR
NO at flueXConcentration on-line monitoring value and NO at total rowXThe consistency of concentration on-line monitoring value.After a cycle, realize that SCR goes out
NO at mouth flueXThe homogeneity of concentration distribution.
In Manual control structure, big flow sampling pump 16 passes through sampling supervisor 14, moving tube 18, sampling branch pipe 7, sampling gun
3(or sampling gun 5) with sampling mouth 20 extract certain characteristic sample point 2 flue gas.Quick coupling 17 in moving tube 18 takes with some
Quick coupling 17 on sample branch pipe 7 connects, and opens simultaneously the manual ball valve 19 on the sampling branch pipe 7, and realization takes a certain characteristic
The sampling of sampling point 2, other manual ball valves 19 can decide whether to open according to whether the sampling branch pipe 7 connected needs blowback.
CEMS sampling pump extracts flue gas from outlet 15 by CEMS connecting tube 12.
In the case where constant dynamic characteristic sample point 2, structure realizes single-point sampling functions at this time.It can be according to the NO of monitoringX
Concentration value individually adjusts the ammonia spraying amount of corresponding spray ammonia branch pipe, realizes NO at SCR exhaust passXConcentration on-line monitoring value
With NO at total rowXThe consistency of concentration on-line monitoring value；
When structure face, some characteristic sample point 2 is individually sampled, and plans to want to sample next characteristic sample point 2
When, the manual ball valve 19 being first turned on the corresponding sampling branch pipe 7 of next characteristic sample point 2, to the sampling branch pipe 7 with take
Sample rifle 3(or sampling gun 5) it is purged, the quick coupling 17 in moving tube 18 and upper sampling branch pipe 7 is disconnected after 1-2min, together
When quickly connect quick coupling 17 in the corresponding sampling branch pipe 7 of next characteristic sample point 2 and moving tube 18, so far realize to spy
The Fast transforms of property sample point 2.The manual ball valve 19 on upper sampling branch pipe 7 is closed after 1-2min, is realized to a upper characteristic
Sampling branch pipe 7 corresponding to sample point 2 and sampling gun 3(or sampling gun 5) purging.On being repeated between all characteristic sample points 2
Process is stated, individually sampling monitoring function in the process can be according to the NO of monitoring in turn for the multiple spot of structure realization at this timeXConcentration value
The ammonia spraying amount of corresponding spray ammonia branch pipe is individually adjusted, realizes NO at SCR exhaust passXConcentration on-line monitoring value and total row
Locate NOXThe consistency of concentration on-line monitoring value.After a cycle, NO at SCR exhaust pass is realizedXThe homogeneity of concentration distribution.
The working principle of the utility model is as follows:
According to flow behavior of the flue gas in SCR flue and device, each spray is determined respectively in exhaust pass monitoring cross section
The main distributed areas of the sprayed ammonia of ammonia branch pipe, in its NH3It is arranged on the center of concentration distribution corresponding with each spray ammonia branch pipe
Characteristic sample point, the NO of characteristic sample pointXWhether the ammonia spraying amount that concentration monitor value can react spray ammonia branch pipe corresponding thereto is smart
Really, and it can realize that accurate ammonia spraying amount adjustment provides direct, correspondence foundation for each spray ammonia branch pipe.The function of big flow sampling pump
Gas in sampling pipe when rate and outlet and the connection performance of CEMS connecting tube can shorten the conversion of characteristic sample point as far as possible
Time swap, and be quickly discharged from outlet, the time of unqualified flue gas is extracted so as to shorten sampling pump in CEMS cabinet.
The content that above-described embodiment illustrates should be understood as that these embodiments are only used for being illustrated more clearly that the utility model
Rather than limitation the scope of the utility model, after having read the utility model, those skilled in the art are practical new to this
The modification of the various equivalent forms of type each falls within the application range as defined in the appended claims.
Claims (10)
1. a kind of smoke sampling structure for instructing each branch pipe ammonia spraying amount adjustment, which is characterized in that including
- type fixed link (1), both ends are fixed on walling of flue (4),
- long sampling gun (3) and short sampling gun (5), are sequentially fixed in type fixed link (1), the position of characteristic sample point (2)
Set, number, number it is corresponding with the structure of ammonia-spraying grid branch pipe, functional characteristic,
- sampling solenoid valve (10), is used to automatically control the flue gas for extracting any characteristic sample point (2), difference when blocking sampling
The mixing of characteristic sample point (2) flue gas, and for replacing it to act on
- moving tube (18) and quick coupling (17), are used to manually control the flue gas for extracting any characteristic sample point (2),
- CEMS connecting tube (12) is fixed on the interior upper wall regions of big flow sampling pump (16) outlet (15).
2. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 1, which is characterized in that described
The subtended angle α of type fixed link (1) is 30-60 °, the anti abrasive stainless steel of material selection, with a thickness of 4-6mm.
3. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 1, which is characterized in that the length
By the be overlapped fixation up and down of sequence from long to short in type fixed link (1), end is had for sampling gun (3) and short sampling gun (5)
It is bent downwardly 90 ° of sampling mouth (20), sampling mouth (20) exceeds type fixed link (1) 2-5cm.
4. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 1, which is characterized in that the spy
Property sample point (2) position in outlet monitoring cross section the area distributions such as be not, need structure according to ammonia-spraying grid branch pipe with
Functional characteristic determines.
5. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 1, which is characterized in that sampling branch
There is heat tracing outside pipe (7) and sampling supervisor (14), sampling branch pipe (7), which is fixed on, to be gathered in case (9), and according to corresponding characteristic sample point
(2) number arranges from left to right.
6. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 1, which is characterized in that described to take
There is root not have to the blowback branch pipe (8) of heat tracing before sample solenoid valve (10), there is the blowback solenoid valve of control blowback on blowback branch pipe (8)
(11)。
7. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 1, which is characterized in that the shifting
Dynamic pipe (18) and sampling branch pipe (7) end are equipped with gastight quick coupling (17), and the other end of moving tube (18) and sampling are led
(14) connection is managed, the length of moving tube (18) can connect any sampling branch pipe (7).
8. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 6, which is characterized in that described anti-
It blows solenoid valve (11) and sampling solenoid valve (10) or manual ball valve (19) is fixed on and gathers in case (9).
9. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 1, which is characterized in that described big
The installation site of flow sampling pump (16) as close as possible to CEMS cabinet, flow can in 2-4s Rapid replacement sampling supervisor (14),
Sample the raw-gas in branch pipe (7) and long sampling gun (3) or short sampling gun (5).
10. the smoke sampling structure of each branch pipe ammonia spraying amount adjustment of guidance according to claim 1, which is characterized in that described
CEMS connecting tube (12) protrudes into the length of outlet (15)LFor 0.5-1m, it is fixed on big flow sampling pump (16) outlet (15)
Interior upper wall regions.
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| CN201621424769.7U CN208596062U (en) | 2016-12-23 | 2016-12-23 | A kind of smoke sampling structure instructing each branch pipe ammonia spraying amount adjustment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342129A (en) * | 2018-11-01 | 2019-02-15 | 肖育军 | A kind of smoke sampling structure instructing each branch pipe ammonia spraying amount adjustment |
| CN111006915A (en) * | 2019-12-12 | 2020-04-14 | 江苏优尔孚机电技术有限公司 | Grid partition sampling structure of large-section flue |
-
2016
- 2016-12-23 CN CN201621424769.7U patent/CN208596062U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109342129A (en) * | 2018-11-01 | 2019-02-15 | 肖育军 | A kind of smoke sampling structure instructing each branch pipe ammonia spraying amount adjustment |
| CN111006915A (en) * | 2019-12-12 | 2020-04-14 | 江苏优尔孚机电技术有限公司 | Grid partition sampling structure of large-section flue |
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