CN109490025A - A kind of level pressure flue gas sampler and flue gas analysis system - Google Patents
A kind of level pressure flue gas sampler and flue gas analysis system Download PDFInfo
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- CN109490025A CN109490025A CN201910016823.6A CN201910016823A CN109490025A CN 109490025 A CN109490025 A CN 109490025A CN 201910016823 A CN201910016823 A CN 201910016823A CN 109490025 A CN109490025 A CN 109490025A
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- 239000003546 flue gas Substances 0.000 title claims abstract description 154
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 150
- 238000004868 gas analysis Methods 0.000 title claims abstract description 11
- 238000010790 dilution Methods 0.000 claims abstract description 43
- 239000012895 dilution Substances 0.000 claims abstract description 43
- 238000005070 sampling Methods 0.000 claims abstract description 43
- 239000007789 gas Substances 0.000 claims description 28
- 230000003134 recirculating effect Effects 0.000 claims description 26
- 235000019504 cigarettes Nutrition 0.000 claims description 15
- 239000008141 laxative Substances 0.000 claims description 15
- 230000001543 purgative effect Effects 0.000 claims description 15
- 238000005086 pumping Methods 0.000 claims description 12
- 238000010793 Steam injection (oil industry) Methods 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims 1
- 239000007787 solid Substances 0.000 claims 1
- 238000005406 washing Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 6
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 7
- 239000002245 particle Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 5
- 230000000391 smoking effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000006399 behavior Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000013056 hazardous product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
- G01N2001/2264—Sampling from a flowing stream of gas with dilution
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention provides a kind of level pressure flue gas sampler and flue gas analysis systems, are related to mechanical equipment technical field.Level pressure flue gas sampler includes flue gas generating assembly, flue gas dilution pipeline, flue gas sampling component and driving assembly, and the outlet side of flue gas generating assembly is connected to the input end of flue gas dilution pipeline；Flue gas sampling component includes the flexible bag of bottom fixing pipe and top, driving assembly includes controller, the first driving motor and connecting rod, the pressure sensor for detecting pressure in the flexible bag in top is provided on the flexible bag in top, pressure sensor and controller communicate to connect, controller is electrically connected with the first driving motor, the bottom of the transmission connection of the top of first driving motor and connecting rod, connecting rod is connected with the top of the flexible bag in top.Flue gas analysis system includes above-mentioned level pressure flue gas sampler, and the two can realize that level pressure samples under a certain pressure, the accurate height of analysis.
Description
Technical field
The present invention relates to mechanical equipment technical fields, in particular to a kind of level pressure flue gas sampler and flue gas point
Analysis system.
Background technique
China's cigarette sale amount and smoking population are in rising trend, however smoking process can generate high-concentration fume and some
Particulate matter generates harm to the health of people, reduces the discharge of the hazardous material of smoking process, realizes that cigarettes reduce coke damage is current row
The emphasis paid close attention in the industry.The emission behaviour of main flume particulate matter in smoking process is studied to the quality and reduction pair for improving cigarette
The harm of human health is of great importance.
Cigarette mainstream flue gas particle sampling faces following problems: high-concentration fume is generated after cigarette suction fuel, in smoke extractor
In be directly sampled to make flue gas concentration in the range ability of measuring instrument, need to be diluted flue gas；Due to taking out
Cigarette process be it is intermittent, be unsatisfactory for the requirement of measuring instrument continuous sample introduction, need to increase exhaust gas volumn realize integration sampling to guarantee
The continuous flowing of flue gas in sampling time；Flue gas after generation, is easy to happen collision, so that flue gas aging, and then generate larger
Measurement error, it is therefore desirable to flue gas is quickly rolled up and is drawn onto thief hatch and is sampled；When flue gas flows in the duct, temperature and
Humidity can change, and carry out control to temperature and humidity and be conducive to reduce error；Flue gas and air is mixed in dilution
Conjunction process unevenly also will affect the precision of measurement, it is therefore desirable to reinforce the mixing of flue gas and air.
When flue gas particle is after dilution, the partial pressure of flue gas can change, and pressure when sampling can also generate variation,
It is different from the flue gas pressures for actually just starting to generate, to can be had an impact to growing up for particle, taking in level pressure
Sample can be avoided above situation.
But existing flue gas sampling device can not achieve level pressure sampling, it is necessary to which R & D design one kind can be fixed
Depress the device to cigarette mainstream flue gas integration sampling.
Summary of the invention
The purpose of the present invention is to provide a kind of level pressure flue gas samplers, it is intended to keep pressure when sampling constant, avoid
Influence of the pressure change to particle growth.
Another object of the present invention is to provide a kind of flue gas analysis systems, can sample under level pressure state, whole
The result of analysis is more accurate.
The present invention is implemented as follows:
A kind of level pressure flue gas sampler, including flue gas generating assembly, flue gas dilution pipeline, flue gas sampling component and driving
The outlet side of component, flue gas generating assembly is connected to the input end of flue gas dilution pipeline；
Flue gas sampling component includes the flexible bag of bottom fixing pipe and top, and outlet end and the bottom of flue gas dilution pipeline are fixed
The bottom inlet of pipe is connected to, and the top of bottom fixing pipe is fixedly connected with the bottom of the flexible bag in top, is connected on the flexible bag in top
There is sampling line；
Driving assembly includes controller, the first driving motor and connecting rod, is provided on the flexible bag in top for detecting top
The pressure sensor of pressure, pressure sensor and controller communicate to connect in the flexible bag in portion, controller and the first driving motor electricity
Connection, the output end of the first driving motor and the top of connecting rod are sequentially connected, the top of the flexible bag in the bottom and top of connecting rod
Portion is connected.
Further, in preferred embodiments of the present invention, top stretch bag side wall on be provided with folding texture, with
It extends and shrinks under the drive of connecting rod.
Further, in preferred embodiments of the present invention, the connecting line of flue gas generating assembly and flue gas dilution pipeline
On be provided with the first valve, the second valve is provided on the connecting line between flue gas dilution pipeline and flue gas sampling component.
Further, in preferred embodiments of the present invention, flue gas sampling component further includes recirculating line, recirculation pipe
The one end on road is connected to the top of the flexible bag in top, and the other end of recirculating line is connected to bottom fixing pipe；
The air inlet of sampling line is connected to recirculating line, and Sampler valves are provided on sampling line.
Further, in preferred embodiments of the present invention, recirculation pipe road is coated with temperature control jacket layer, on temperature control jacket layer
It is provided with the feed opening for temperature control medium to be added and the discharge port for exporting temperature control medium；
Recirculation pipe road is additionally provided with steam injection pipe, and the gas outlet of steam injection pipe is located at the interior of recirculating line
Portion is provided with steam control valve on steam injection pipe.
Further, in preferred embodiments of the present invention, recirculation pipe road is additionally provided with wash-out valve, is located at cleaning
The recirculation pipe road of valve side is provided with purgative gas feed pipe, and the recirculation pipe road positioned at the wash-out valve other side is arranged
There is purgative gas discharge nozzle, is provided with third valve on purgative gas feed pipe and purgative gas discharge nozzle.
Further, in preferred embodiments of the present invention, there are four outlets for connection at the outlet at bottom of recirculating line
Pipeline, the exit of four outlet pipes surround circular cavity, and the exit of each outlet pipe is and where circular cavity
Circle is tangent.
Further, it in preferred embodiments of the present invention, is equipped in the inner cavity of bottom fixing pipe for generating suction
Circulating pump, the second driving motor is installed on the side wall of bottom fixing pipe, is equipped in the inner cavity of bottom fixing pipe for producing
The circulating fan of raw suction, the output end of the second driving motor is connected with circulating fan, to drive circulating fan to rotate.
Further, in preferred embodiments of the present invention, flue gas dilution pipeline include concatenated venturi dilution tube and
The inlet end of axis diluted stream pipe, venturi dilution tube is connected with the outlet side of flue gas generating assembly, the outlet of venturi dilution tube
End is connected with the inlet end of axis diluted stream pipe, and the outlet side of axis diluted stream pipe is connected with bottom fixing pipe.
A kind of flue gas analysis system, including above-mentioned level pressure flue gas sampler, flue gas generating assembly include flue gas generator tube,
Cigarette clamp port is provided at the top of flue gas generator tube, the bottom of flue gas generator tube is provided with pumping piston, the cunning of pumping piston
Moved end is located in flue gas generator tube, and the pull end of pumping piston is stretched out from the bottom of flue gas generator tube, is arranged on flue gas generator tube
There is suction valve.
The beneficial effects of the present invention are: the level pressure flue gas sampler that the present invention obtains by above-mentioned design, passes through cigarette
Gas generating assembly generates flue gas, enters flue gas sampling component after dilution gas is added in flue gas dilution pipeline, passes through top
Pressure sensor on flexible bag carries out pressure detecting and feeds back to pressure signal in controller, when the pressure during bag is stretched at top
Controller passes through the first driving motor drive connection bar and then the flexible bag in top is driven to be stretched to adjust when more than certain value
Volume, when pressure sensor detects that pressure is that specified value controller controls the first driving motor stop motion.The present invention is implemented
The level pressure flue gas sampler that example provides can be realized the level pressure under specified pressure and sample, and avoid the shadow to particle in flue gas
It rings.
The embodiment of the invention also provides a kind of flue gas analysis systems comprising above-mentioned level pressure flue gas sampler, it can
Level pressure sampling, the accurate Gao Genggao of analysis are realized under a certain pressure.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram for the level pressure flue gas sampler that embodiment of the present invention provides；
Fig. 2 is the structural schematic diagram in recirculating line end exit in Fig. 1.
Icon: 100- level pressure flue gas sampler；110- flue gas generating assembly；111- flue gas generator tube；112- cigarette folder
Hold mouth；113- pumping piston；114- sliding end；115- pull end；116- aspirates valve；The first valve of 117-；The second valve of 118-
Door；120- flue gas dilution pipeline；121- venturi dilution tube；122- axis diluted stream pipe；130- flue gas sampling component；The bottom 131-
Fixing pipe；Stretch bag at the top of 132-；133- sampling line；134- pressure sensor；135- folds texture；136- Sampler valves；
137- circulating pump；The second driving motor of 138-；139- circulating fan；140- driving assembly；The first driving motor of 142-；143- connects
Extension bar；150- recirculating line；151- temperature control jacket layer；152- steam injection pipe；153- steam control valve；154- wash-out valve；
155- purgative gas feed pipe；156- purgative gas discharge nozzle；157- outlet pipe；158- circular cavity.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " up time
The orientation or positional relationship of the instructions such as needle ", " counterclockwise " is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
The description present invention and simplified description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with spy
Fixed orientation construction and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the present invention unless specifically defined or limited otherwise, fisrt feature second feature "upper" or "lower"
It may include that the first and second features directly contact, also may include that the first and second features are not direct contacts but pass through it
Between other characterisation contact.Moreover, fisrt feature includes the first spy above the second feature " above ", " above " and " above "
Sign is right above second feature and oblique upper, or is merely representative of first feature horizontal height higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " include that fisrt feature is directly below and diagonally below the second feature, or is merely representative of
First feature horizontal height is less than second feature.
Fig. 1 is please referred to, the embodiment of the invention provides a kind of level pressure flue gas samplers 100, including flue gas generating assembly
110, flue gas dilution pipeline 120, flue gas sampling component 130 and driving assembly 140.
Flue gas generating assembly 110 includes flue gas generator tube 111, and the top of flue gas generator tube 111 is provided with cigarette clamp port
112, the bottom of flue gas generator tube 111 is provided with pumping piston 113, and the sliding end 114 of pumping piston 113 is located at flue gas generator tube
In 111, the pull end 115 of pumping piston 113 is stretched out from the bottom of flue gas generator tube 111, is provided with pumping on flue gas generator tube 111
Inhale valve 116.It is held on after cigarette is lighted at cigarette clamp port 112, by the pull end for pulling downward on pumping piston 113
115 make the process of its slide downward simulation suction in flue gas generator tube 111, open and generate suction valve 116 and the first valve
Flue gas enters flue gas dilution pipeline 120 after 117.
Further, the first valve is provided on the connecting line of flue gas generating assembly 110 and flue gas dilution pipeline 120
117, the second valve 118 is provided on the connecting line between flue gas dilution pipeline 120 and flue gas sampling component 130.By opening
The first valve 117 and the second valve 118 are opened and closed to control the flowing of flue gas, the multiple valves provided in the embodiment of the present invention
It is existing valve, structure and working principle, which are not done, excessively to be repeated.
The outlet side of flue gas generating assembly 110 is connected to the input end of flue gas dilution pipeline 120；Flue gas dilution pipeline 120
Including concatenated venturi dilution tube 121 and axis diluted stream pipe 122, the inlet end and flue gas generation group of venturi dilution tube 121
The outlet side of part 110 is connected, and the outlet side of venturi dilution tube 121 is connected with the inlet end of axis diluted stream pipe 122, axis diluted stream
The outlet side of pipe 122 is connected with the bottom fixing pipe 131 on flue gas sampling component 130.
Specifically, venturi dilution tube 121 is existing Venturi tube, at it close to one of flue gas generating assembly 110
End setting air inlet pipe, venturi dilution tube 121 not only act as the effect for being passed through diluent air, also increase the flow velocity of gas laggard
Enter the axis diluted stream pipe 122 of rear end.Axis diluted stream pipe 122 is commercially available dilution tube, and to be axial, model can be flow direction
DIL-8001 type diluter.The structure and working principle of venturi dilution tube 121 and axis diluted stream pipe 122, which are not done, excessively to be repeated.
Flue gas sampling component 130 includes the flexible bag 132 of bottom fixing pipe 131 and top, the outlet of flue gas dilution pipeline 120
End is connected to the bottom inlet of bottom fixing pipe 131, and the bottom of the flexible bag 132 in the top and top of bottom fixing pipe 131 is fixed
It connects, is connected with sampling line 133 on the flexible bag 132 in top；Driving assembly 140 includes controller (not shown), the first driving
Motor 142 and connecting rod 143, top are stretched the pressure sensing being provided on bag 132 for detect pressure in the flexible bag 132 in top
Device 134, pressure sensor 134 and controller communicate to connect, and controller is electrically connected with the first driving motor 142, the first driving electricity
The output end of machine 142 and the top of connecting rod 143 are sequentially connected, the top phase of the flexible bag 132 in the bottom and top of connecting rod 143
Even.
It should be noted that generating flue gas by flue gas generating assembly 110, it is added and dilutes by flue gas dilution pipeline 120
With after gas enter flue gas sampling component 130.Stretching the progress pressure detecting of the pressure sensor 134 on bag 132 by top will
Pressure signal is fed back in controller, the controller control first when the pressure during bag 132 is stretched at top is more than pressure preset
The flexible bag 132 of 142 drive connection bar 143 of driving motor and then driving top is stretched to adjust volume, and pressure sensor is worked as
134 detect that pressure is that specified value controller controls the stopping driving of the first driving motor 142.Level pressure provided in an embodiment of the present invention
Flue gas sampler 100 can be realized the level pressure under specified pressure and sample, and avoid the influence to particle in flue gas.
Specifically, controller can be a kind of IC chip, the processing capacity with signal.Above-mentioned controller can
To be general processor, including central processing unit (Central Processing Unit, CPU), network processing unit (Network
Processor, NP) etc.；It can also be digital signal processor (Digital Signal Processing, DSP), dedicated collection
At circuit (Application Specific Integrated Circuit, ASIC), field programmable gate array (Field
Programmable Gate Array, FPGA) either other programmable logic device, discrete gate or transistor logic,
Discrete hardware components.General processor can be microprocessor；Processor is also possible to any conventional processor etc..Yu Benshi
It applies in example, it is preferable that the controller can be the processor of STM32 series, such as STM32F103C8T6, STM32F103VET6
Etc. models, can also be PLC control system (Programmable Logic Controller).Pressure sensor 18 can be elder brother
The models such as logical sequence seashore JYB-KO-PAH, PT124G-111, PT124G-128, PT124B-112.
Specifically, it is provided on the side wall of the flexible bag 132 in top and folds texture 135, to be stretched under the drive of connecting rod 143
The flexible principle of long and contraction, the flexible bag 132 in top is similar to screwed pipe.
Further, the circulating pump 137 for generating suction is installed, bottom is fixed in the inner cavity of bottom fixing pipe 131
Second driving motor 138 is installed on the side wall of pipe 131, is equipped in the inner cavity of bottom fixing pipe 131 for generating suction
The output end of circulating fan 139, the second driving motor 138 is connected with circulating fan 139, to drive circulating fan 139 to rotate.It follows
Ring pump 137 and circulating fan 139 are existing for generating the device of suction, and flue gas is made to enter bottom fixing pipe more quickly
In 131, circulating fan 139 also acts as the effect being stirred.
Further, flue gas sampling component 130 further includes recirculating line 150, one end and top of recirculating line 150
The top connection of flexible bag 132, the other end of recirculating line 150 are connected to bottom fixing pipe 131.Recirculating line 150 is used
In the adjusting for carrying out temperature and humidity to flue gas, it is the temperature humidity of flue gas in optimum range and is uniformly mixed.Sampling line
133 air inlet is connected to recirculating line 150, and Sampler valves 136 are provided on sampling line 133.
It should be noted that recirculating line 150 and top are stretched, the junction of bag 132 is to be tightly connected, can will again
Circulation line 150 stretches in the flexible bag 132 in top, transports the flexible bag 132 in top up and down along the tube wall of recirculating line 150
It is dynamic.
Further, it is coated with temperature control jacket layer 151 on recirculating line 150, is provided on temperature control jacket layer 151 for being added
The feed opening (not shown) of temperature control medium and discharge port (not shown) for exporting temperature control medium；On recirculating line 150 also
It is provided with steam injection pipe 152, the gas outlet of steam injection pipe 152 is located at the inside of recirculating line 150, steam injection pipe
Steam control valve 153 is provided on 152.Temperature control jacket layer 151 is arranged around recirculating line 150, is heated or cooled for placing
With medium, heating and cooling with realization to material in recirculating line 150.Steam injection pipe 152 is for being passed through steam, to increase
Add the humidity of flue gas.
Further, it is additionally provided with wash-out valve 154 on recirculating line 150, positioned at following again for 154 side of wash-out valve
It is provided with purgative gas feed pipe 155 on endless tube road 150, is provided on the recirculating line 150 of 154 other side of wash-out valve
Third valve (not shown) is provided on purgative gas discharge nozzle 156, purgative gas feed pipe 155 and purgative gas discharge nozzle 156.When
After sampling, the second valve 118 and wash-out valve 154 are closed, clean air is passed through in purgative gas feed pipe 155, from cleaning
Gas discharge nozzle 156 exports the cleaning that clean air realizes pipeline, and it is remaining to avoid being mixed with last time sampling before next flue gas sampling
Flue gas, and influence the accuracy of detection.
Incorporated by reference to Fig. 1 and Fig. 2, connected at the outlet at bottom of recirculating line 150 there are four outlet pipe 157, four go out
The exit of air pipe 157 surrounds circular cavity 158, and the exit of each outlet pipe 157 is and where circular cavity 158
Circle is tangent.Whirlpool can be formed at outlet pipe 157 by the way of such outlet, it is uniform to be conducive to gas mixing.
The embodiment of the invention also provides a kind of flue gas analysis systems, including above-mentioned level pressure flue gas sampler 100, same
Sample can realize that level pressure samples under the conditions of certain pressure, and the accuracy of analysis can be improved during flue gas analysis, be suitble to
In popularization and application.
In conclusion flue gas is generated by flue gas generating assembly the present invention provides a kind of level pressure flue gas sampler,
Enter flue gas sampling component, the pressure sensor to be stretched on bag by top after dilution gas is added in flue gas dilution pipeline
It carries out pressure detecting to feed back to pressure signal in controller, when the pressure during bag is stretched at top is more than certain value, controller is logical
It crosses the first driving motor drive connection bar and then the flexible bag in top is driven to be stretched to adjust volume, when pressure sensor detects
It is that specified value controller controls the first driving motor stop motion to pressure.It can be realized the level pressure under specified pressure to sample, keep away
The influence to particle in flue gas is exempted from.
The embodiment of the invention also provides a kind of flue gas analysis systems comprising above-mentioned level pressure flue gas sampler, it can
Level pressure sampling, the accurate Gao Genggao of analysis are realized under a certain pressure.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of level pressure flue gas sampler, which is characterized in that including flue gas generating assembly, flue gas dilution pipeline, flue gas sampling
Component and driving assembly, the outlet side of the flue gas generating assembly are connected to the input end of the flue gas dilution pipeline；
The flue gas sampling component includes that bottom fixing pipe and top are stretched bag, the outlet end of the flue gas dilution pipeline with it is described
The bottom inlet of bottom fixing pipe is connected to, and the top of the bottom fixing pipe is fixedly connected with the bottom of the flexible bag in the top,
Sampling line is connected on the flexible bag in the top；
The driving component includes controller, the first driving motor and connecting rod, is provided on the flexible bag in the top for examining
The pressure sensor of pressure in the flexible bag in the top is surveyed, the pressure sensor and the controller communicate to connect, the control
Device processed is electrically connected with first driving motor, and the output end of first driving motor and the top of the connecting rod are driven and connect
It connects, the bottom of the connecting rod is connected with the top of the flexible bag in the top.
2. level pressure flue gas sampler according to claim 1, which is characterized in that set on the side wall of the flexible bag in the top
It is equipped with folding texture, to extend and shrink under the drive of the connecting rod.
3. level pressure flue gas sampler according to claim 1, which is characterized in that the flue gas generating assembly and the cigarette
It is provided with the first valve on the connecting line of gas dilution pipeline, between the flue gas dilution pipeline and the flue gas sampling component
The second valve is provided on connecting line.
4. level pressure flue gas sampler according to claim 3, which is characterized in that the flue gas sampling component further includes again
Circulation line, the stretch top of bag of one end of the recirculating line and the top are connected to, the recirculating line it is another
End is connected to the bottom fixing pipe；
The air inlet of the sampling line is connected to the recirculating line, and is provided with Sampler valves on the sampling line.
5. level pressure flue gas sampler according to claim 4, which is characterized in that the recirculation pipe road is coated with temperature
Jacket layer is controlled, is provided with the feed opening for temperature control medium to be added and the discharging for exporting temperature control medium on the temperature control jacket layer
Mouthful；
The recirculation pipe road is additionally provided with steam injection pipe, and the gas outlet of the steam injection pipe is located at the recirculation pipe
The inside on road is provided with steam control valve on the steam injection pipe.
6. level pressure flue gas sampler according to claim 4, which is characterized in that the recirculation pipe road is additionally provided with
Wash-out valve, the recirculation pipe road positioned at the wash-out valve side are provided with purgative gas feed pipe, are located at described clear
The recirculation pipe road for washing the valve other side is provided with purgative gas discharge nozzle, the purgative gas feed pipe and the purgative gas
Third valve is provided on discharge nozzle.
7. level pressure flue gas sampler according to claim 4, which is characterized in that the outlet at bottom of the recirculating line
Place's connection is there are four outlet pipe, and the exit of four outlet pipes surrounds circular cavity, each outlet pipe
Exit is tangent with the circle where the circular cavity.
8. level pressure flue gas sampler according to claim 1, which is characterized in that pacify in the inner cavity of the bottom fixing pipe
Equipped with the circulating pump for generating suction, the second driving motor is installed on the side wall of the bottom fixing pipe, the bottom is solid
Determine that the circulating fan for generating suction is installed in the inner cavity of pipe, the output end and the circulated air of second driving motor
Machine is connected, to drive the circulating fan to rotate.
9. level pressure flue gas sampler according to claim 1, which is characterized in that the flue gas dilution pipeline includes series connection
Venturi dilution tube and axis diluted stream pipe, the outlet side of the inlet end of the venturi dilution tube and the flue gas generating assembly
It is connected, the outlet side of the venturi dilution tube is connected with the inlet end of the axis diluted stream pipe, and the axis diluted stream pipe goes out
Gas end is connected with the bottom fixing pipe.
10. a kind of flue gas analysis system, which is characterized in that including level pressure flue gas sampling of any of claims 1-9
Device, the flue gas generating assembly include flue gas generator tube, and cigarette clamp port is provided at the top of the flue gas generator tube, described
The bottom of flue gas generator tube is provided with pumping piston, and the sliding end of the pumping piston is located in the flue gas generator tube, described
The pull end of pumping piston is stretched out from the bottom of the flue gas generator tube, is provided with suction valve on the flue gas generator tube.
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| CN110160075A (en) * | 2019-05-27 | 2019-08-23 | 邯郸百世创联电子科技有限公司 | A kind of environment-protection boiler |
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