CN105203471A - Novel flue gas tester - Google Patents

Novel flue gas tester Download PDF

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Publication number
CN105203471A
CN105203471A CN201410279203.9A CN201410279203A CN105203471A CN 105203471 A CN105203471 A CN 105203471A CN 201410279203 A CN201410279203 A CN 201410279203A CN 105203471 A CN105203471 A CN 105203471A
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China
Prior art keywords
unit
flue gas
detection cell
gas
gas detection
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Pending
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CN201410279203.9A
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Chinese (zh)
Inventor
王金鹤
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Qingdao University of Technology
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Qingdao University of Technology
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Priority to CN201410279203.9A priority Critical patent/CN105203471A/en
Publication of CN105203471A publication Critical patent/CN105203471A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a novel flue gas tester, which comprises a filtering constant-temperature unit, a conversion unit, a flue gas pretreatment unit, a gas detection unit, a humidity measurement unit and a control unit, wherein the flue gas pretreatment unit comprises a flue gas extraction device and a flue gas treatment device, and the filtering constant-temperature unit is communicated with the conversion unit; the conversion unit is communicated with the smoke extraction device; the gas detection unit is respectively connected with the smoke extraction device and the humidity measurement unit, and the control unit is respectively connected with the humidity measurement unit and the smoke treatment device through signal lines; the filtering constant temperature unit comprises a filter cartridge, a sealing gasket, an end cover and a connecting body, wherein the connecting body and the filter cartridge are both hollow cylinders, and the gas detection unit comprises a gas chamber and a heat preservation layer. The invention has reasonable structure and high reaction speed and can realize the high-temperature measurement of the flue gas.

Description

A kind of novel flue gas tester
Technical field
The present invention relates to a kind of checkout equipment, be specifically related to a kind of novel flue gas tester.
Background technology
Domestic portable smoke detecting instrument at present takes the measuring method of electrochemical sensor more, due to the service condition of sensor---and the air chamber temperature of sensor can not more than 40 degree, moisture effects SO 2test result, most domestic and international manufacturer all takes heating and thermal insulation 110 degree---rapid condensation the measure such as to dewater to improve test accuracy.This method part solves water vapor condensation and absorbs SO 2and the SO caused 2the inaccurate problem of gas test, but the Long contact time of condensate water and flue gas in condensation process, SO 2or to dissolve, make measurement result on the low side.The air chamber temperature of electrochemical sensor can not limit the application of its high temperature more than the service condition of 40 degree.
summary of the invention
The present invention overcomes the deficiencies in the prior art, propose a kind of novel flue gas tester, described tester comprises filtration constant temperature unit, converting unit, fume extraction device, gas detection cell, flue gas processing device and humidity measuring unit, tester control module.Described flue gas processing device comprises special smoke backflow corrosion resistant metal pipe fitting, is wrapped up by fume extraction thermostat, plays insulation effect; Introducing humidity measuring unit both can Measurement accuracy smoke moisture, can make SO again 2, NO, NH 3the high-temperature flue gas of gas test is condensed to suitable temperature, avoids the galvanochemistry O in damage control unit 2sensor and non-dispersion infrared (NDIR) CO, CO 2sensor.
Technical solution of the present invention is, a kind of novel flue gas tester, comprise and filter constant temperature unit, converting unit, flue gas pretreatment unit, gas detection cell, humidity measuring unit and control module, flue gas pretreatment unit comprises fume extraction device and flue gas processing device, and described filtration constant temperature unit is connected with converting unit, described converting unit is connected with fume extraction device, described gas detection cell connects fume extraction device and humidity measuring unit respectively, and described control module is connected with flue gas processing device with humidity measuring unit respectively by signal wire, filter constant temperature unit and comprise cartridge filter, sealing gasket, end cap and connector, described connector and cartridge filter are both hollow right cylinder, the two ends of described cartridge filter embed cartridge filter inside respectively by sealing gasket, end cap is embedded in one end of connector, converting unit comprises heating rod, molybdenum filament filling room and molybdenum locular wall, converting unit is the cylindrical structural of hollow, outside is molybdenum locular wall, inner hub location is heating rod, heating rod is cylindrical structural, it is molybdenum filament filling room between heating rod and molybdenum locular wall, the left and right sides of molybdenum filament filling room is respectively equipped with gas outlet and air intake opening, gas detection cell comprises air chamber and heat-insulation layer, gas detection cell is the cylindrical structural of hollow, outside is described heat-insulation layer, inside is described air chamber, in the both sides of air chamber, transmitting illuminant is set respectively, outlet nozzle is respectively equipped with and smoke backflow connects mouth at the two ends, left and right of gas detection cell, described heating rod is provided with in air chamber, catoptron is provided with above heating rod, humidity measuring unit is positioned at the below of gas detection cell, humidity measuring unit comprises housing, admission piece, outlet nozzle, condensate water meter and condensate drain outlet, admission piece and condensate drain outlet are separately positioned on the two ends up and down of housing, condensate water meter is arranged on the inside of housing, outlet nozzle is arranged on the side of housing.
Admission piece is connected with gas detection cell.
Air intake opening and filter that constant temperature unit is airtight is communicated with, gas outlet is connected with fume extraction device.
the present invention has following beneficial effect:
1, the invention solves the high temperature measurement problem of Conventional electrochemical tester, rational in infrastructure, reaction velocity is fast, can realize the high temperature measurement of flue gas;
2, instant invention overcomes the defect that measurement result that conventional portable smoke detecting instrument flue gas preprocessor condensate water sulfur dioxide absorption causes is on the low side;
3, the present invention introduce humidity measuring unit both can Measurement accuracy smoke moisture, can SO have been made again 2, NO, NH 3the high-temperature flue gas of gas test is condensed to suitable temperature, avoids the sensor in damage control unit and non-dispersion infrared (NDIR) CO, CO 2sensor, for environmental monitoring department provides a real-time online to demarcate the portable instrument of CEMS;
4, the invention solves the temperature and pressure correction problem of ultraviolet absorption method smoke detecting instrument.
accompanying drawing explanation
Fig. 1 is that the present invention filters constant temperature unit structural representation.
Fig. 2 is converting unit schematic diagram of the present invention.
Fig. 3 is gas detection cell of the present invention
Fig. 4 is humidity measuring unit of the present invention
Fig. 5 is complete machine schematic diagram of the present invention
In figure, 1, filter constant temperature unit; 2, converting unit; 3, fume extraction device; 4, gas detection cell; 5, humidity measuring unit; 6, flue gas processing device; 7, control module; 1-1, cartridge filter; 1-2, sealing gasket; 1-3, end cap; 1-4, connector; 2-1, heating rod I; 2-2, molybdenum filament filling room; 2-3, molybdenum locular wall; 4-1, air chamber; 4-2, heat-insulation layer; 4-3, incident light; 4-4, reflected light; 4-5, smoke backflow connect mouth; 4-6, heating rod II; 4-7, catoptron; 4-8, outlet nozzle; 5-1, admission piece; 5-2, outlet nozzle; 5-3, condensate water meter; 5-4 condensate drain outlet.
Embodiment:
See shown in Fig. 1 to Fig. 5, the present invention includes and filter constant temperature unit 1, converting unit 2, flue gas pretreatment unit, gas detection cell 4, flue gas processing device 6, humidity measuring unit 5 and control module 7, flue gas pretreatment unit comprises fume extraction device 3 and flue gas processing device 6, flue gas processing device 6 is provided with special smoke backflow corrosion resistant metal pipe fitting, and described filtration constant temperature unit 1 is connected with converting unit 2, described converting unit 2 is connected with fume extraction device 3, described gas detection cell 4 connects flue gas processing device 6 and humidity measuring unit 5 respectively, and described control module 7 is connected with flue gas processing device 6 with humidity measuring unit 5 respectively by signal wire, filter constant temperature unit 1 and comprise cartridge filter 1-1, sealing gasket 1-2, end cap 1-3 and connector 1-4, described connector 1-4 and cartridge filter 1-1 is both hollow right cylinder, the two ends of described cartridge filter 1-1 embed cartridge filter 1-1 inside respectively by sealing gasket 1-2, end cap 1-3 is embedded in one end of connector 1-4, converting unit 2 comprises heating rod I 2-1, molybdenum filament filling room 2-2 and molybdenum locular wall 2-3, converting unit 2 is the cylindrical structural of hollow, outside is molybdenum locular wall 2-3, inner hub location is heating rod I 2-1, heating rod I 2-1 is cylindrical structural, be molybdenum filament filling room 2-2 between heating rod I 2-1 and molybdenum locular wall 2-3, the left and right sides of molybdenum filament filling room 2-2 is respectively equipped with gas outlet and air intake opening, air intake opening and filter that constant temperature unit 1 is airtight is communicated with, gas outlet is connected with fume extraction device 3.Gas detection cell 4 comprises air chamber 4-1 and heat-insulation layer 4-2, gas detection cell 4 is the cylindrical structural of hollow, outside is described heat-insulation layer 4-2, inside is described air chamber 4-1, in the both sides of air chamber 4-1, transmitting illuminant is set respectively, transmitting illuminant can produce incident light 4-3 respectively, outlet nozzle 4-8 is respectively equipped with and smoke backflow meets mouth 4-5 at the two ends, left and right of gas detection cell 4, described heating rod II 4-6 is provided with in air chamber 4-1, catoptron 4-7 is provided with above heating rod II 4-6, catoptron 4-7 can reflect reflected light 4-4, humidity measuring unit 5 is positioned at the below of gas detection cell 4, introducing humidity measuring unit 5 both can Measurement accuracy smoke moisture, SO can be made again 2, NO, NH 3the high-temperature flue gas of gas test is condensed to suitable temperature, avoids the sensor in damage control unit and non-dispersion infrared (NDIR) CO, CO 2sensor, for environmental monitoring department provides a real-time online to demarcate the portable instrument of CEMS, humidity measuring unit 5 comprises housing, admission piece 5-1, outlet nozzle 5-2, condensate water meter 5-3 and condensate drain outlet 5-4, admission piece 5-1 and condensate drain outlet 5-4 is separately positioned on the two ends up and down of housing, condensate water meter 5-3 is arranged on the inside of housing, and outlet nozzle 5-2 is arranged on the side of housing.Admission piece 5-1 is connected with gas detection cell 4.Principle of work is, after instrument is opened, in control module 7, the well heater of single card microcomputer control fume extraction device 3 starts heating, and after temperature constant, click and preserve spectrum button, zero spectrum (not having the spectrum of tested gas) preserved automatically by instrument; Inserted by native system in flue, click in the gas test interface of control module 7 and test button, the sampling of fume extraction device 3 is started working, and the spectrum through gas absorption is saved in single card microcomputer automatically, and built-in test procedure starts to calculate tested gas concentration.

Claims (3)

1. a novel flue gas tester, comprise and filter constant temperature unit, converting unit, flue gas pretreatment unit, gas detection cell, humidity measuring unit and control module, it is characterized in that: flue gas pretreatment unit comprises fume extraction device and flue gas processing device, described filtration constant temperature unit is connected with converting unit, described converting unit is connected with fume extraction device, described gas detection cell connects fume extraction device and humidity measuring unit respectively, and described control module is connected with flue gas processing device with humidity measuring unit respectively by signal wire, filter constant temperature unit and comprise cartridge filter, sealing gasket, end cap and connector, described connector and cartridge filter are both hollow right cylinder, the two ends of described cartridge filter embed cartridge filter inside respectively by sealing gasket, end cap is embedded in one end of connector, converting unit comprises heating rod, molybdenum filament filling room and molybdenum locular wall, converting unit is the cylindrical structural of hollow, outside is molybdenum locular wall, inner hub location is heating rod, heating rod is cylindrical structural, it is molybdenum filament filling room between heating rod and molybdenum locular wall, the left and right sides of molybdenum filament filling room is respectively equipped with gas outlet and air intake opening, gas detection cell comprises air chamber and heat-insulation layer, gas detection cell is the cylindrical structural of hollow, outside is described heat-insulation layer, inside is described air chamber, in the both sides of air chamber, transmitting illuminant is set respectively, outlet nozzle is respectively equipped with and smoke backflow connects mouth at the two ends, left and right of gas detection cell, described heating rod is provided with in air chamber, catoptron is provided with above heating rod, humidity measuring unit is positioned at the below of gas detection cell, humidity measuring unit comprises housing, admission piece, outlet nozzle, condensate water meter and condensate drain outlet, admission piece and condensate drain outlet are separately positioned on the two ends up and down of housing, condensate water meter is arranged on the inside of housing, outlet nozzle is arranged on the side of housing.
2. novel flue gas tester according to claim 1, is characterized in that: admission piece is connected with gas detection cell.
3. novel flue gas tester according to claim 1, is characterized in that: air intake opening and filter that constant temperature unit is airtight is communicated with, and gas outlet is connected with fume extraction device.
CN201410279203.9A 2014-06-21 2014-06-21 Novel flue gas tester Pending CN105203471A (en)

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Application Number Priority Date Filing Date Title
CN201410279203.9A CN105203471A (en) 2014-06-21 2014-06-21 Novel flue gas tester

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106198385A (en) * 2016-08-23 2016-12-07 合肥金星机电科技发展有限公司 Flue gas detecting system
CN108872331A (en) * 2017-12-28 2018-11-23 无锡大禹科技有限公司 A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument
CN109690295A (en) * 2016-09-19 2019-04-26 塞彭公司 For analyzing the system and method for the discharge gas of urea equipment
CN111948106A (en) * 2020-08-11 2020-11-17 陈海南 City air networking check out test set

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106198385A (en) * 2016-08-23 2016-12-07 合肥金星机电科技发展有限公司 Flue gas detecting system
CN106198385B (en) * 2016-08-23 2023-10-13 合肥金星智控科技股份有限公司 Flue gas detection system
CN109690295A (en) * 2016-09-19 2019-04-26 塞彭公司 For analyzing the system and method for the discharge gas of urea equipment
CN108872331A (en) * 2017-12-28 2018-11-23 无锡大禹科技有限公司 A kind of intelligence reverse-flow type oil smoke concentration on-line monitoring instrument
CN111948106A (en) * 2020-08-11 2020-11-17 陈海南 City air networking check out test set
CN111948106B (en) * 2020-08-11 2021-09-07 山东圣文环保科技有限公司 City air networking check out test set

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Application publication date: 20151230