CN109752489A - flue gas analysis system - Google Patents
flue gas analysis system Download PDFInfo
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- CN109752489A CN109752489A CN201910015778.2A CN201910015778A CN109752489A CN 109752489 A CN109752489 A CN 109752489A CN 201910015778 A CN201910015778 A CN 201910015778A CN 109752489 A CN109752489 A CN 109752489A
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- flue gas
- analysis system
- gas analysis
- flue
- exhaust outlet
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Abstract
The present invention relates to a kind of flue gas analysis systems.Flue gas analysis system, including for protruding into the inserting tube inside flue, inserting tube has the measurement chamber entered under test gas, the measurement chamber has exhaust outlet, flue gas analysis system further includes for the return-air duct to flue gas and the air amplifier being connected between return-air duct and the exhaust outlet, the air amplifier has the suction inlet and outlet connecting respectively with the exhaust outlet and return-air duct, also has compressed air input port, and the exhaust outlet is connected with shut-off valve.Above scheme had not only been able to achieve natural diffuseness detection but also had been able to achieve cycle detection in situ, and function is more abundant.
Description
Technical field
The present invention relates to a kind of flue gas analysis systems.
Background technique
In power industry, coal fired power generation can generate the combustion product of amplification quantity side by side, CO, SO therein2、SO3And
NOXDeng to the very harmful of ecological environment and human body, during boiler operatiopn, in order to understand unburnt journey in furnace
Degree, to carry out firing optimization, this just needs to detect the various composition in flue gas.
Notification number is CN204302176U, and it is dense that the day for announcing is that the Chinese patent of 2015.04.29 discloses a kind of flue ammonia
Detection device is spent, it further includes pumping which, which includes the measuring instrument on the outside of flue and the inserting tube for being inserted into inside flue,
Device and the blow vent being discharged for flue gas make flue gas reach measuring instrument and gas is discharged from blow vent using air extractor
Outside inserting tube, the structure of the detecting device is simple, easy to install and use.
But above-mentioned flue ammonia concentration detection device can not achieve the cycle detection in situ of flue gas, adaptability is poor.
Summary of the invention
The purpose of the present invention is to provide a kind of flue gas analysis systems, and the detection probe for solving prior art flue gas cannot be real
Now the problem of cycle detection in situ.
To achieve the above object, the technical solution of flue gas analysis system of the present invention is: flue gas analysis system, including for stretching
Enter the inserting tube inside flue, inserting tube has the measurement chamber entered under test gas, and the measurement chamber has exhaust outlet, flue gas analysis
System further includes amplifying for the return-air duct to flue gas and the air being connected between return-air duct and the exhaust outlet
Device, the air amplifier have the suction inlet and outlet connecting respectively with the exhaust outlet and return-air duct, also have pressure
Contracting air-in, the exhaust outlet are connected with shut-off valve.
The beneficial effect is that: the exhaust outlet of the measurement chamber setting of inserting tube can be connected by air amplifier and return-air duct
It is logical, therefore the suction to flue gas in flue can be realized by air amplifier, so as to realize cycle detection in situ, together
When, when closing measurement chamber can be isolated the shut-off valve of exhaust outlet connection with return-air duct, thus realize that natural diffuseness detects, with
The prior art is compared, and has not only been able to achieve natural diffuseness detection but also has been able to achieve cycle detection in situ, function is more abundant.
The suction inlet of the air amplifier is connected with the first triple valve, the compressed air input port connection of air amplifier
Have the second triple valve, other two valve port of first triple valve respectively with the exhaust outlet of inserting tube and the second triple valve wherein
One valve port connection, the remaining valve port of second triple valve are the gas source connector for connecting with compressed gas source.Using upper
The scheme of stating can be realized by the connection of the first triple valve and the second triple valve carries out reverse blow to system channel and inserting tube.
The shut-off valve of exhaust outlet connection is third triple valve, other two valve port of third triple valve is respectively with second
Triple valve and atmosphere.Shut-off valve uses third triple valve that can reserve spare spare interface for system, is easy to implement spy
The functions such as pipe calibration.
Smoke inlet is offered on the inserting tube, the side of inserting tube outer peripheral surface is arranged in when being inserted into flue in smoke inlet
Towards flue gas leeward side.The flue dust in flue is enabled to be not easy to deposit at smoke inlet using the program.
The smoke inlet is the axially extending strip hole along inserting tube, is conducive to increase air inlet area, reduces vapour lock.
The return-air duct is the flue gas emission flanged pipe being fixed on walling of flue.Using the structure letter of flue gas emission flanged pipe
It is single, it is easy to connect.
Heat-resistant hose is connected between the air amplifier and flue gas emission flanged pipe, the heat-resistant hose passes through switching
Flange is connect with flue gas emission flanged pipe, and gasket is equipped between adapter flange and flue gas emission flanged pipe.Using heat-resistant hose
With connecting flange convenient for connection.
The both ends of the heat-resistant hose are equipped with pipe collar.Setting pipe collar can enhance system reliability.
The flue gas analysis system further includes the gas circuit control cabinet for installing air amplifier, and the air amplifier is set
It sets in gas circuit control cabinet.Gas circuit control cabinet can play a protective role, and also can be realized modularization.
The gas circuit control cabinet, which passes through the fixed frame being arranged on inserting tube, to be fixed, and system structure can be made more compact.
Detailed description of the invention
Fig. 1 is the schematic diagram of flue gas analysis system of the present invention；
Fig. 2 is the structural schematic diagram of flue gas analysis system of the present invention.
Description of symbols: 1. inserting tubes；101. exhaust outlet；2. stainless steel tube；3. air amplifier；301. suction inlet；
302. outlet；303. compressed air input ports；4. flue gas emission flanged pipe；5. adapter flange；6. heat-resistant hose；7. the three or three
Port valve；701. atmosphere connection port；8. the first triple valve；9. the second triple valve；10. compressed gas source；11. walling of flue；12. gas circuit control
Case processed；13. pipe collar；14. fixed frame；15. gasket；16. flue layer；17. smoke inlet.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
One embodiment of flue gas analysis system of the present invention is as shown in Figure 1 to Figure 2, which includes for stretching
Enter the inserting tube 1 inside flue, inserting tube 1, which passes through the welded flange being arranged on walling of flue 11, to be fixed.Inserting tube 1 has to be located at when using
Smoke inlet 17 in flue, also has the measurement chamber entered under test gas, and the smoke inlet 17 is the axial direction along inserting tube 1
The strip hole of extension, strip hole be arranged in the side of inserting tube outer peripheral surface with when being inserted into flue towards flue gas leeward side, i.e., and cigarette
Flow of flue gas direction is identical in road；The measurement chamber has the exhaust outlet 101 when using outside flue.
Flue gas analysis system further includes air amplifier 3 and the return-air duct for being inserted into flue, and air amplifier is
The prior art is based on hydromechanical basic principle --- and wall attachment effect only uses a small amount of compressed air as power source, just
Surrounding air is able to drive to flow to form high pressure, high-speed flow, for flow up to the decades of times of air consumption, the ripe ﹑ of knot composition is at low cost,
It can be used for transmitting air, row removing exhaust gas ﹑ smoke evacuation and conveying light material etc..Air amplifier 3 have respectively with exhaust outlet 101 and
The suction inlet 301 and outlet 302 of return-air duct connection, also have compressed air input port 303 on air amplifier 3.
In the present embodiment, the suction inlet 301 of the air amplifier is connected with the first triple valve 8, air amplifier 3
Compressed air input port 303 is connected with the second triple valve 9, other two valve port of first triple valve 8 respectively with inserting tube 1
Exhaust outlet 101 is connected to one of valve port of the second triple valve 9, the remaining valve port of second triple valve 9 be for pressure
The gas source connector that contracting gas source 10 connects.Flue gas analysis system further includes the gas circuit control cabinet 12 for installing air amplifier 3,
Gas circuit control cabinet 12 is fixed by fixed frame 14, and air amplifier 3 is arranged in gas circuit control cabinet 12.
In the present embodiment, return-air duct includes the flue gas emission flanged pipe 4 being fixed on walling of flue 11, basic herein
On, heat-resistant hose 6 is connected between air amplifier 3 and flue gas emission flanged pipe 4, heat-resistant hose 6 passes through adapter flange 5 and cigarette
Gas drain flange pipe 4 connects, and gasket 15, base preferably are equipped between adapter flange 5 and flue gas emission flanged pipe 4
On plinth, the both ends of heat-resistant hose 6 are fixed by pipe collar 13.
By taking the flue gas analysis system is used to be monitored all data of flue gas in power plant's flue as an example, on walling of flue 11
Equipped with flue layer 16, flow of flue gas direction is direction shown in arrow in Fig. 1 in flue, is connected when third triple valve 7 is truncated
When taking over road, in flue gas can natural diffuseness to smoke inlet 17, can to the flue gas under natural diffuseness state in flue at
Divide and is detected.
Inserting tube 1 is connected to connecting line when opening third triple valve 7, since the gas flow rate in flue is larger, inserting tube 1
With between flue gas emission flanged pipe 4, there are certain pressure differences for insertion position, and through inserting tube 1 into air amplifier 3
It is passed through compressed gas source 10, can make to form negative pressure at gas delivery tube, the flue gas in flue passes through the smoke inlet 17 of inserting tube 1,
It is discharged into flue under pressure difference effect by flue gas emission flanged pipe 4, obtains the burning of coal in boiler much sooner
Degree, the tested flue gas in inserting tube 1 realize automatic-discharging, i.e., circulation in situ under the action of pressure difference.
In the above-described embodiments, the connecting pipe by the first triple valve 8 and the second triple valve 9 and between the two, is removed
Outside capable of completing to detect flue gas, another effect is can to carry out reverse blow to system, to prevent from visiting
The dust of the air inlet element attachment of pipe is more and influences measurement.It in other embodiments, can also be only in compressed gas source 10 and sky
Shut-off valve is set between the compressed air input port 303 of gas amplifier 3, and reverse blow function can be by third triple valve 7
Atmosphere connection port 701 realize, certainly, the first triple valve 8 can be saved at this time.
In the above-described embodiments, the atmosphere connection port 701 of third triple valve 7 is for carrying out periodic calibrating or reality to inserting tube
The spare mouth of existing other purposes, can guarantee that system is accurately run for a long time.In other embodiments, due to periodic calibrating operation
The frequency is relatively low, can also realize periodic calibrating function by other means, for example, will measure the exhaust outlet 101 of chamber with it is stainless
Steel pipe 2 disconnects, and reconnects after the completion of calibration, can set two-way valve for third triple valve 7 at this time or save.
The embodiment 2 of flue gas analysis system of the present invention, difference from example 1 is that, smoke inlet 17 is towards cigarette
Gas windward side, i.e., it is contrary with flow of flue gas in flue.
Claims (10)
1. flue gas analysis system, including for protruding into the inserting tube inside flue, inserting tube has the measurement chamber entered under test gas,
It is characterized by: the measurement chamber have exhaust outlet, flue gas analysis system further include for flue gas return-air duct and
The air amplifier being connected between return-air duct and the exhaust outlet, the air amplifier have respectively with the exhaust outlet
The suction inlet and outlet connected with return-air duct, also has compressed air input port, and the exhaust outlet is connected with shut-off valve.
2. flue gas analysis system according to claim 1, it is characterised in that: the suction inlet of the air amplifier is connected with
First triple valve, the compressed air input port of air amplifier are connected with the second triple valve, and other the two of first triple valve
A valve port is connected to one of valve port of the exhaust outlet of inserting tube and the second triple valve respectively, the remaining valve of second triple valve
Mouth is the gas source connector for connecting with compressed gas source.
3. flue gas analysis system according to claim 2, it is characterised in that: the shut-off valve of the exhaust outlet connection is third
Triple valve, other two valve port of third triple valve respectively with the second triple valve and atmosphere.
4. flue gas analysis system according to claim 1 or 2 or 3, it is characterised in that: offer flue gas on the inserting tube and enter
Mouthful, smoke inlet be arranged in the side of inserting tube outer peripheral surface with when being inserted into flue towards flue gas leeward side.
5. flue gas analysis system according to claim 4, it is characterised in that: the smoke inlet prolongs for the axial direction along inserting tube
The strip hole stretched.
6. flue gas analysis system according to claim 1 or 2 or 3, it is characterised in that: the return-air duct is to be fixed on cigarette
Flue gas emission flanged pipe on road wall.
7. flue gas analysis system according to claim 6, it is characterised in that: the air amplifier and flue gas emission flange
Be connected with heat-resistant hose between pipe, the heat-resistant hose is connect by adapter flange with flue gas emission flanged pipe, adapter flange and
Gasket is equipped between flue gas emission flanged pipe.
8. flue gas analysis system according to claim 7, it is characterised in that: the both ends of the heat-resistant hose are equipped with pipe collar.
9. flue gas analysis system according to claim 1 or 2 or 3, it is characterised in that: the flue gas analysis system further includes
For installing the gas circuit control cabinet of air amplifier, the air amplifier is arranged in gas circuit control cabinet.
10. flue gas analysis system according to claim 9, it is characterised in that: the gas circuit control cabinet is being visited by setting
Fixed frame on pipe is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015778.2A CN109752489A (en) | 2019-01-08 | 2019-01-08 | flue gas analysis system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910015778.2A CN109752489A (en) | 2019-01-08 | 2019-01-08 | flue gas analysis system |
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| Publication Number | Publication Date |
|---|---|
| CN109752489A true CN109752489A (en) | 2019-05-14 |
Family
ID=66405316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910015778.2A Pending CN109752489A (en) | 2019-01-08 | 2019-01-08 | flue gas analysis system |
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| CN (1) | CN109752489A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387626A (en) * | 1999-11-09 | 2002-12-25 | 康宁股份有限公司 | Mode adaption for multimode optical fiber systems |
| CN1419753A (en) * | 2000-03-27 | 2003-05-21 | 李在升 | Free-space optical WDM communication system |
| CN101408458A (en) * | 2003-03-31 | 2009-04-15 | 佐勒技术公司 | Method and device for monitoring and controlling combusting course |
| CN104160640A (en) * | 2012-01-09 | 2014-11-19 | 阿托隆有限责任公司 | USPL-FSO lasercom point-to-point and point-to-multipoint optical wireless communication |
| CN104867806A (en) * | 2014-02-24 | 2015-08-26 | 岛津分析技术研发（上海）有限公司 | Desorption sample introducing method and device |
| CN106053351A (en) * | 2016-07-06 | 2016-10-26 | 北京新叶能源科技有限公司 | In-situ flue gas online measuring device |
| CN106546653A (en) * | 2016-11-21 | 2017-03-29 | 山东电力研究院 | A kind of flue gas sucking system and method suitable for zirconia oxygen analyzer oxygen content measurement |
| CN209559861U (en) * | 2019-01-08 | 2019-10-29 | 光力科技股份有限公司 | A kind of flue gas analysis system |
-
2019
- 2019-01-08 CN CN201910015778.2A patent/CN109752489A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1387626A (en) * | 1999-11-09 | 2002-12-25 | 康宁股份有限公司 | Mode adaption for multimode optical fiber systems |
| CN1419753A (en) * | 2000-03-27 | 2003-05-21 | 李在升 | Free-space optical WDM communication system |
| CN101408458A (en) * | 2003-03-31 | 2009-04-15 | 佐勒技术公司 | Method and device for monitoring and controlling combusting course |
| CN104160640A (en) * | 2012-01-09 | 2014-11-19 | 阿托隆有限责任公司 | USPL-FSO lasercom point-to-point and point-to-multipoint optical wireless communication |
| CN104867806A (en) * | 2014-02-24 | 2015-08-26 | 岛津分析技术研发（上海）有限公司 | Desorption sample introducing method and device |
| CN106053351A (en) * | 2016-07-06 | 2016-10-26 | 北京新叶能源科技有限公司 | In-situ flue gas online measuring device |
| CN106546653A (en) * | 2016-11-21 | 2017-03-29 | 山东电力研究院 | A kind of flue gas sucking system and method suitable for zirconia oxygen analyzer oxygen content measurement |
| CN209559861U (en) * | 2019-01-08 | 2019-10-29 | 光力科技股份有限公司 | A kind of flue gas analysis system |
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