CN111781035A - High-temperature flue gas sampling device - Google Patents
High-temperature flue gas sampling device Download PDFInfo
- Publication number
- CN111781035A CN111781035A CN202010655825.2A CN202010655825A CN111781035A CN 111781035 A CN111781035 A CN 111781035A CN 202010655825 A CN202010655825 A CN 202010655825A CN 111781035 A CN111781035 A CN 111781035A
- Authority
- CN
- China
- Prior art keywords
- sampling
- flue gas
- temperature sensor
- temperature
- cooling liquid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 123
- 239000003546 flue gas Substances 0.000 title claims abstract description 52
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 239000000523 sample Substances 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 18
- 230000004323 axial length Effects 0.000 claims abstract description 5
- 239000000110 cooling liquid Substances 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 8
- 239000000919 ceramic Substances 0.000 claims description 6
- 230000017525 heat dissipation Effects 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 10
- 238000009833 condensation Methods 0.000 abstract description 4
- 230000005494 condensation Effects 0.000 abstract description 4
- 230000033228 biological regulation Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 6
- 239000000779 smoke Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
Images
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
- G01N1/24—Suction devices
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
Landscapes
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Automation & Control Theory (AREA)
- Molecular Biology (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a high-temperature flue gas sampling device, which comprises a sampling probe, a sampling tube, a first temperature sensor, an automatic temperature control and cooling device and a second temperature sensor, wherein the first temperature sensor, the automatic temperature control and cooling device and the second temperature sensor are sequentially arranged along the axial length direction of the outer side wall of the sampling tube; the sampling probe is detachably connected with the sampling tube, the first temperature sensor is arranged at one end of the sampling tube close to the sampling probe, and the second temperature sensor is arranged at one end of the sampling tube far away from the sampling probe; the automatic temperature control and cooling device is automatically started or stopped according to the signal transmitted by the second temperature sensor; the second temperature sensor is used as the feedback of the automatic temperature control and reduction device, so that the regulation and control of the flue gas temperature are realized, the flue gas temperature is ensured not to be too high to damage a detection instrument, and meanwhile, the flue gas temperature is ensured not to be too low to cause condensation, so that the accuracy and the reliability of a detection result are ensured.
Description
Technical Field
The invention relates to the technical field of high-temperature flue gas sampling, in particular to a high-temperature flue gas sampling device.
Background
In biomass direct-fired power generation boilers, coal-fired boilers and boilers in the chemical industry, the metallurgy industry and other industries, the chemical composition, the phase and the reducing atmosphere of high-temperature flue gas in the boiler are accurately measured, and the method has important significance for researching the combustion reaction process in the boiler, the high-temperature corrosion condition, the pollutant emission characteristic and the like.
At present, two modes are mainly used for sampling and detecting high-temperature flue gas of a hearth, one mode is to collect the flue gas by using a special container and carry the flue gas to a laboratory for treatment and analysis, the method has higher requirement on the tightness of the sampling container, and the flue gas is easy to condense in the container after being cooled, so that the detection result is inaccurate; the other type is field sampling detection, but the temperature of smoke in the furnace is too high, the conventional metal sampling gun is very easy to soften and deform, and the high-temperature smoke can cause damage to a detection instrument.
The Chinese invention patent with the application number of 201810253698.6 and the publication number of 20180921 discloses a Chinese medicine for treating hypertensionA sampling device for extracting smoke dust from warm flue gas, which uses water to directly cool the flue gas, although the cooling speed is high, the method is not suitable for NH-containing flue gas3、SO2Flue gas sampling of water-soluble components such as HCl and the like. The application number is 201822207383.6, chinese utility model patent that the publication date is 20191018 discloses a mercury's sampling device in high temperature flue gas, this sampling device designs into the structure that the diameter reduces gradually with the sampling probe front portion, gaseous entering behind this structure because the space grow suddenly, gaseous inflation suddenly for the high temperature flue gas quench, but the cooling rate of this method uncontrollable high temperature flue gas very easily leads to the flue gas cooling not enough to damage check out test set or the partial composition takes place the condensation after the excessive cooling.
Disclosure of Invention
The invention aims to provide a high-temperature flue gas sampling device to solve the problems that in the prior art, a detection instrument is damaged due to overhigh temperature of sampled flue gas, and partial flue gas components are condensed due to uncontrollable cooling rate of the high-temperature flue gas.
In order to achieve the purpose, the invention provides the following technical scheme:
the invention provides a high-temperature flue gas sampling device which comprises a sampling probe, a sampling tube, a first temperature sensor, an automatic temperature control and cooling device and a second temperature sensor, wherein the first temperature sensor, the automatic temperature control and cooling device and the second temperature sensor are sequentially arranged along the axial length direction of the outer side wall of the sampling tube; the sampling probe is detachably connected with the sampling tube, the first temperature sensor is arranged at one end of the sampling tube close to the sampling probe, and the second temperature sensor is arranged at one end of the sampling tube far away from the sampling probe; the automatic temperature control and temperature reduction device is automatically started or stopped according to the signal transmitted by the second temperature sensor.
Furthermore, automatic temperature control heat sink includes electric fan and fin, and fin fixed connection is on the lateral wall of sampling tube, and electric fan sets up on the fin, and electric fan's motor is inverter motor, and electric fan is according to the signal automatic start or the stop of second temperature sensor transmission.
Further, the material of the heat sink includes metal.
Furthermore, the automatic cooling and temperature controlling device comprises a circulating cooling liquid container, a circulating pump, a circulating cooling liquid radiating assembly and a circulating cooling liquid container which are sequentially communicated through a circulating cooling liquid connecting hose; the circulating cooling liquid heat dissipation assembly is fixedly connected to the outer side wall of the sampling tube; circulating cooling liquid in the circulating cooling liquid container sequentially passes through the circulating pump and the circulating cooling liquid heat dissipation assembly and then returns to the circulating cooling liquid container; and a motor in the circulating pump is a variable frequency motor, and the circulating pump is automatically started or stopped according to a signal transmitted by the second temperature sensor.
Further, the circulating cooling liquid includes water.
Furthermore, the sampling probe is connected with the sampling tube through an internal thread joint.
Furthermore, sealing gaskets are respectively arranged between the sampling probe and the internal thread joint and between the sampling tube and the internal thread joint.
Furthermore, the temperature range monitored by the first temperature sensor is 500-1200 ℃, and the temperature range monitored by the second temperature sensor is 180-200 ℃.
Further, the material of the sampling probe comprises ceramic, and the material of the sampling tube comprises metal.
Compared with the prior art, the invention has the beneficial effects that:
according to the high-temperature flue gas sampling device, the automatic temperature control and cooling device is automatically started or stopped according to the signal transmitted by the second temperature sensor, the second temperature sensor is used as the feedback of the automatic temperature control and cooling device, the regulation and control of the flue gas temperature are realized, the flue gas temperature is not overhigh to damage a detection instrument, meanwhile, the flue gas temperature is not overlow to cause condensation, and the accuracy and the reliability of a detection result are ensured;
the material of the sampling probe comprises ceramics, the ceramic sampling probe can be in a high-temperature environment of more than 1000 ℃ for a long time, can not be softened and deformed, and can not be subjected to chemical reaction with high-temperature flue gas;
connect through female adapter between sampling probe and the sampling tube, can dismantle between sampling probe and the sampling tube, be convenient for transportation, save and the change in the use.
Drawings
Fig. 1 is a schematic structural diagram of a high-temperature flue gas sampling device provided in embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of a high-temperature flue gas sampling device provided in embodiment 2 of the present invention.
In the figure: 1-sampling probe, 2-sampling tube, 3-first temperature sensor, 4-second temperature sensor, 5-electric fan, 6-radiating fin, 7-circulating cooling liquid connecting hose, 8-circulating cooling liquid container, 9-circulating pump, 10-circulating cooling liquid radiating component and 11-internal thread joint.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1, a high-temperature flue gas sampling device provided in embodiment 1 of the present invention includes a sampling probe 1, a sampling tube 2, and a first temperature sensor 3, an automatic temperature control and cooling device, and a second temperature sensor 4, which are sequentially arranged along an axial length direction of an outer side wall of the sampling tube 2; the sampling probe 1 is detachably connected with the sampling tube 2, the first temperature sensor 3 is arranged at one end of the sampling tube 2 close to the sampling probe 1, and the second temperature sensor 4 is arranged at one end of the sampling tube 2 far away from the sampling probe 1; the automatic temperature control and temperature reduction device is automatically started or stopped according to the signal transmitted by the second temperature sensor 4.
Automatic accuse temperature heat sink includes electric fan 5 and fin 6, fin 6 fixed connection is on the lateral wall of sampling tube 2, a heat transfer area for increasing sampling tube 2, electric fan 5 sets up on fin 6, electric fan 5's motor is inverter motor, electric fan 5 is automatic start or stop according to the signal of second temperature sensor 4 transmission, second temperature sensor 4 monitors the flue gas temperature in sampling tube 2 and sets for the difference of temperature and is regarded as electric fan 5's feedforward, the frequency of motor in the control electric fan 5, the temperature difference is big more, the frequency of motor in electric fan 5 is higher more, electric fan 5 rotates faster, when second temperature sensor 4 monitors the flue gas temperature in sampling tube 2 and reaches the settlement temperature, electric fan 5 stops working.
Connect through female adapter 11 between sampling probe 1 and the sampling tube 2, can dismantle between sampling probe 1 and the sampling tube 2, be convenient for transportation, save and change in the use.
And sealing gaskets are respectively arranged between the sampling probe 1 and the internal thread joint 11 and between the sampling tube 2 and the internal thread joint 11, so that the connecting part is sealed.
The temperature range monitored by the first temperature sensor 3 is 500-1200 ℃, and the temperature range monitored by the second temperature sensor 4 is 180-200 ℃.
The device can flexibly control and adjust the cooling rate according to the components of the flue gas in the sampling process, ensures that the flue gas temperature is not too high to damage a detection instrument, and simultaneously ensures that the flue gas temperature is not too low to cause condensation, thereby ensuring the accuracy and reliability of a detection result.
Example 2:
as shown in fig. 2, the high-temperature flue gas sampling device provided in embodiment 2 of the present invention includes a sampling probe 1, a sampling tube 2, and a first temperature sensor 3, an automatic temperature control and cooling device, and a second temperature sensor 4, which are sequentially arranged along the axial length direction of the outer side wall of the sampling tube 2; the sampling probe 1 is detachably connected with the sampling tube 2, the first temperature sensor 3 is arranged at one end of the sampling tube 2 close to the sampling probe 1, and the second temperature sensor 4 is arranged at one end of the sampling tube 2 far away from the sampling probe 1; the automatic temperature control and temperature reduction device is automatically started or stopped according to the signal transmitted by the second temperature sensor 4.
The automatic temperature reduction and control device comprises a circulating cooling liquid container 8, a circulating pump 9, a circulating cooling liquid radiating assembly 10 and a circulating cooling liquid container 8 which are sequentially communicated through a circulating cooling liquid connecting hose 7; the circulating cooling liquid heat dissipation assembly 10 is fixedly connected to the outer side wall of the sampling tube 2; circulating cooling liquid in the circulating cooling liquid container 8 sequentially passes through the circulating pump 9 and the circulating cooling liquid heat dissipation assembly 10 and then returns to the circulating cooling liquid container 8; the motor in the circulating pump 9 is a variable frequency motor, the circulating pump 9 is automatically started or stopped according to a signal transmitted by the second temperature sensor 4, the second temperature sensor 4 monitors the difference value between the temperature of the flue gas in the sampling pipe 2 and the set temperature to be used as the feedforward of the circulating pump 9, the frequency of the motor in the circulating pump 9 is controlled, the larger the temperature difference value is, the higher the frequency of the motor in the circulating pump 9 is, the faster the circulating pump 9 rotates, and when the second temperature sensor 4 monitors that the temperature of the flue gas in the sampling pipe 2 reaches the set temperature, the circulating pump 9 stops working.
The circulating cooling liquid comprises water.
The sampling probe 1 is connected with the sampling tube 2 through an internal thread joint 11.
And sealing gaskets are respectively arranged between the sampling probe 1 and the internal thread joint 11 and between the sampling tube 2 and the internal thread joint 11.
The temperature range monitored by the first temperature sensor 3 is 500-1200 ℃, and the temperature range monitored by the second temperature sensor 4 is 180-200 ℃.
The material of the sampling probe 1 comprises ceramic and the material of the sampling tube 2 comprises metal.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a high temperature flue gas sampling device which characterized in that: the device comprises a sampling probe (1), a sampling tube (2), and a first temperature sensor (3), an automatic temperature control and cooling device and a second temperature sensor (4) which are sequentially arranged along the axial length direction of the outer side wall of the sampling tube (2); the sampling probe (1) is detachably connected with the sampling tube (2), the first temperature sensor (3) is arranged at one end, close to the sampling probe (1), of the sampling tube (2), and the second temperature sensor (4) is arranged at one end, far away from the sampling probe (1), of the sampling tube (2); the automatic temperature control and temperature reduction device is automatically started or stopped according to the signal transmitted by the second temperature sensor (4).
2. The high temperature flue gas sampling device of claim 1, wherein: automatic accuse temperature heat sink includes electric fan (5) and fin (6), fin (6) fixed connection is on the lateral wall of sampling tube (2), electric fan (5) set up on fin (6), the motor of electric fan (5) is inverter motor, electric fan (5) are according to the signal automatic start or the stop of second temperature sensor (4) transmission.
3. The high temperature flue gas sampling device of claim 2, wherein: the material of the heat sink (6) comprises metal.
4. The high temperature flue gas sampling device of claim 1, wherein: the automatic cooling and temperature controlling device comprises a circulating cooling liquid container (8), a circulating pump (9), a circulating cooling liquid radiating assembly (10) and a circulating cooling liquid container (8) which are sequentially communicated through a circulating cooling liquid connecting hose (7); the circulating cooling liquid heat dissipation assembly (10) is fixedly connected to the outer side wall of the sampling tube (2); circulating cooling liquid in the circulating cooling liquid container (8) sequentially passes through the circulating pump (9) and the circulating cooling liquid heat dissipation assembly (10) and then returns to the circulating cooling liquid container (8); the motor in the circulating pump (9) is a variable frequency motor, and the circulating pump (9) is automatically started or stopped according to a signal transmitted by the second temperature sensor (4).
5. The high temperature flue gas sampling device of claim 4, wherein: the circulating cooling liquid comprises water.
6. The high temperature flue gas sampling device of claim 1, wherein: the sampling probe (1) is connected with the sampling tube (2) through an internal thread joint (11).
7. The high temperature flue gas sampling device of claim 6, wherein: and sealing gaskets are respectively arranged between the sampling probe (1) and the internal thread joint (11) and between the sampling tube (2) and the internal thread joint (11).
8. The high temperature flue gas sampling device of claim 1, wherein: the temperature range monitored by the first temperature sensor (3) is 500-1200 ℃, and the temperature range monitored by the second temperature sensor (4) is 180-200 ℃.
9. The high temperature flue gas sampling device of claim 1, wherein: the material of the sampling probe (1) comprises ceramic, and the material of the sampling tube (2) comprises metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010655825.2A CN111781035A (en) | 2020-07-09 | 2020-07-09 | High-temperature flue gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010655825.2A CN111781035A (en) | 2020-07-09 | 2020-07-09 | High-temperature flue gas sampling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111781035A true CN111781035A (en) | 2020-10-16 |
Family
ID=72759332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010655825.2A Pending CN111781035A (en) | 2020-07-09 | 2020-07-09 | High-temperature flue gas sampling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111781035A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378712A (en) * | 2020-10-26 | 2021-02-19 | 江苏方天电力技术有限公司 | Flue gas mixing and sampling device |
| WO2023193354A1 (en) * | 2022-04-06 | 2023-10-12 | 苏州西热节能环保技术有限公司 | Mercury sampling apparatus based on active carbon adsorption under high temperature, and control method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202582956U (en) * | 2012-04-13 | 2012-12-05 | 中国矿业大学 | High-temperature and high-dust gas and ash content sampling device |
| CN105300745A (en) * | 2014-06-11 | 2016-02-03 | 华北电力大学 | Adjustable water-cooling sampling gun device for boiler and sampling method |
| CN106033035A (en) * | 2015-03-15 | 2016-10-19 | 青岛明华电子仪器有限公司 | Flue gas mercury sampler |
| CN106644617A (en) * | 2016-12-30 | 2017-05-10 | 华测检测认证集团股份有限公司 | Chimney smoke sampling device |
| CN109060464A (en) * | 2018-09-29 | 2018-12-21 | 南京木达环保科技有限公司 | Sampler and measuring device for the measurement of gravimetric method smoke moisture |
| CN208833731U (en) * | 2018-09-28 | 2019-05-07 | 成都嘉泽兴业科技有限责任公司 | A kind of flue gas analysis system |
| CN209513364U (en) * | 2018-12-26 | 2019-10-18 | 南京理工大学 | The sampler of mercury in a kind of high-temperature flue gas |
| CN212722258U (en) * | 2020-07-09 | 2021-03-16 | 江苏方天电力技术有限公司 | High-temperature flue gas sampling device |
-
2020
- 2020-07-09 CN CN202010655825.2A patent/CN111781035A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202582956U (en) * | 2012-04-13 | 2012-12-05 | 中国矿业大学 | High-temperature and high-dust gas and ash content sampling device |
| CN105300745A (en) * | 2014-06-11 | 2016-02-03 | 华北电力大学 | Adjustable water-cooling sampling gun device for boiler and sampling method |
| CN106033035A (en) * | 2015-03-15 | 2016-10-19 | 青岛明华电子仪器有限公司 | Flue gas mercury sampler |
| CN106644617A (en) * | 2016-12-30 | 2017-05-10 | 华测检测认证集团股份有限公司 | Chimney smoke sampling device |
| CN208833731U (en) * | 2018-09-28 | 2019-05-07 | 成都嘉泽兴业科技有限责任公司 | A kind of flue gas analysis system |
| CN109060464A (en) * | 2018-09-29 | 2018-12-21 | 南京木达环保科技有限公司 | Sampler and measuring device for the measurement of gravimetric method smoke moisture |
| CN209513364U (en) * | 2018-12-26 | 2019-10-18 | 南京理工大学 | The sampler of mercury in a kind of high-temperature flue gas |
| CN212722258U (en) * | 2020-07-09 | 2021-03-16 | 江苏方天电力技术有限公司 | High-temperature flue gas sampling device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378712A (en) * | 2020-10-26 | 2021-02-19 | 江苏方天电力技术有限公司 | Flue gas mixing and sampling device |
| WO2023193354A1 (en) * | 2022-04-06 | 2023-10-12 | 苏州西热节能环保技术有限公司 | Mercury sampling apparatus based on active carbon adsorption under high temperature, and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111781035A (en) | High-temperature flue gas sampling device | |
| CN201654015U (en) | Exhaust gas collection and detection device for annealing furnace radiator tubes | |
| CN212722258U (en) | High-temperature flue gas sampling device | |
| CN210571074U (en) | On-line monitoring sensor for corrosion depth of boiler heating surface | |
| CN204461835U (en) | The sample gas atmosphere pick-up unit sampling aqueous vapor condensation in flue gas can be prevented | |
| CN106769814B (en) | Low-temperature corrosion detection system and detection method thereof | |
| CN204346771U (en) | Multifunctional high-temperature flue gas sampling device | |
| CN212059617U (en) | Hydrocarbon removing device in smoke detection and monitoring process | |
| CN104502157A (en) | Multifunctional high-temperature flue gas sampling device | |
| CN210322404U (en) | Water sampling cooler for steam boiler | |
| CN113155920A (en) | Flue gas SO3Online monitoring device and method | |
| CN112066353A (en) | Device and method for monitoring wall temperature of heat exchange tube in furnace by adopting compressed air cooling protection | |
| CN204806438U (en) | Multistage heat pipe air heater | |
| CN207028238U (en) | A kind of set composite of PTFE multiple tubes | |
| CN112403266A (en) | Ammonia spraying and denitration test bed and method for high-temperature reduction zone | |
| CN219956046U (en) | Automatic telescopic air inlet mechanism with temperature | |
| CN217424890U (en) | Bivalent mercury high-temperature conversion device | |
| CN214844949U (en) | Flue gas SO3On-line monitoring device | |
| CN216049206U (en) | Air preheating device for kiln | |
| CN216350220U (en) | High-temperature alloy corrosion depth in-situ monitoring device | |
| CN212932676U (en) | Condensation preventing device for primary wind speed measurement | |
| CN213749709U (en) | Boiler flue gas side corrosion on-line monitoring device based on resistance measurement technology | |
| CN215865982U (en) | Sampling device for oxygen content measurement sample gas of high-temperature high-pressure industrial boiler | |
| CN210322490U (en) | Self-pumping smoke sampler | |
| CN218154314U (en) | System for be used for furnace negative pressure to measure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |