CN111504735A - Low CO generator set emission test system and test method - Google Patents
Low CO generator set emission test system and test method Download PDFInfo
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- CN111504735A CN111504735A CN202010516948.8A CN202010516948A CN111504735A CN 111504735 A CN111504735 A CN 111504735A CN 202010516948 A CN202010516948 A CN 202010516948A CN 111504735 A CN111504735 A CN 111504735A
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- 238000012360 testing method Methods 0.000 title claims abstract description 34
- 238000010998 test method Methods 0.000 title claims description 5
- 238000005070 sampling Methods 0.000 claims abstract description 32
- 230000007613 environmental effect Effects 0.000 claims abstract description 17
- 238000004458 analytical method Methods 0.000 claims abstract description 8
- 238000013028 emission testing Methods 0.000 claims abstract description 5
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 238000004445 quantitative analysis Methods 0.000 claims abstract description 4
- 239000000523 sample Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 4
- 230000034994 death Effects 0.000 description 3
- 231100000517 death Toxicity 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/34—Purifying; Cleaning
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
- G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
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- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
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- Biochemistry (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
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- Engineering & Computer Science (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
A CO genset emission testing system comprising: the environment bin meets the international standard and is used for providing an environment temperature condition meeting the requirement for the test of the unit; the sampling system is used for carrying out quantitative sampling analysis on the tail gas discharged by the generator set, and meanwhile, the influence of the tail gas on the flowmeter and the analyzer is avoided through two-stage filtration; the gas analyzer is used for carrying out quantitative analysis on the concentration of CO in the sampled gas; and the air inlet and exhaust system is used for ventilating air of the environmental chamber. The test system of the invention has accurate test, adopts a high-precision analyzer and has high frequency; the applicability is strong, and generator sets of different models can be tested; the practicability is strong, and the system operation is convenient and fast.
Description
Technical Field
The invention relates to the technical field of harmful gas emission tests, in particular to a low CO generator set emission test system and a test method.
Background
From 2005 to 2016, reports on non-fire carbon monoxide related events and deaths indicated 965 deaths, 780 of which (> 80%) were caused by portable gensets, with associated departments requiring that gensets meet standards for injury reduction, and specifically requiring that the risk of death and injury from CO poisoning be reduced.
At present, domestic test systems mostly adopt simple closed bins and cannot effectively control environmental parameters in the bins, such as: temperature and the like, and meanwhile, a gas alarm probe is mostly adopted for CO sampling to obtain a CO emission value.
In the process of implementing the present invention, the applicant finds that the above prior art has the following technical defects:
(1) the system integration level is not enough, multiple systems are independently controlled, and the unified control of an upper computer cannot be realized;
(2) the CO gas alarm probe mode is adopted, so that the test precision is poor, the sampling frequency is low, and the requirements of the standard on the test cannot be met;
(3) the system has no CO and dangerous gas alarm device, and has potential safety hazard.
Disclosure of Invention
In view of the above, the main objective of the present invention is to provide a system and a method for testing low CO generator set emissions, so as to partially solve at least one of the above technical problems.
In order to achieve the above object, as an aspect of the present invention, there is provided a CO power plant emission testing system, including:
the environment bin meets the international standard and is used for providing an environment temperature condition meeting the requirement for the test of the unit;
the sampling system is used for carrying out quantitative sampling analysis on the tail gas discharged by the generator set, and meanwhile, the influence of the tail gas on the flowmeter and the analyzer is avoided through two-stage filtration;
the gas analyzer is used for carrying out quantitative analysis on the concentration of CO in the sampled gas;
and the air inlet and exhaust system is used for ventilating air of the environmental chamber.
The sampling system comprises a filter, a solenoid valve, a sampling pump, a gas exhaust and/or a mass flow meter, wherein the sampling pump is a plunger type sampling pump.
Wherein the gas analyzer is an infrared analyzer.
As another aspect of the present invention, there is provided a CO generator set emission testing method, including the steps of:
opening a data acquisition and analysis system, and setting environmental parameters of an environmental bin to enable the environmental parameters to meet test conditions;
calibrating a gas analyzer before testing, respectively performing zero calibration and full-range calibration, and entering a state to be tested after calibration is completed;
arranging a sampling probe, starting a generator set, enabling the system to enter a sampling test, recording the CO concentration in an environment bin by an analyzer, stopping the generator set when the concentration reaches a set value, and simultaneously calculating a concentration peak value and a process average value by the system.
Based on the technical scheme, compared with the prior art, the low CO generator set emission test system and the test method have at least one of the following beneficial effects:
1. the test is accurate, a high-precision analyzer is adopted, and the frequency is high;
2. the applicability is strong, and generator sets of different models can be tested;
3. the practicability is strong, and the system operation is convenient and fast.
Drawings
FIG. 1 is a schematic structural diagram of a low CO generator set emission test system of the present invention.
In the above figures, the reference numerals have the following meanings:
1, an environment bin;
2, an observation window;
3, an air inlet fan;
4, a tested generator set;
5, air conditioning;
6, monitoring the probe;
7 an exhaust fan;
8, marking gas;
9 a sampling pump;
10, a filter 1;
11 a float flow meter;
12, a filter 2;
13 electromagnetic valve;
14, exhausting;
15 mass flow meter;
a 16 CO analyzer;
17, an alarm;
18 a sampling probe;
19 a data acquisition and analysis system.
Detailed Description
In order that the objects, technical solutions and advantages of the present invention will become more apparent, the present invention will be further described in detail with reference to the accompanying drawings in conjunction with the following specific embodiments.
Fig. 1 is a schematic structural diagram of the emission testing system of the low CO generator set according to the present invention. During testing, firstly, the generator set is placed at the designated position 4 of the environmental chamber 1, and the sampling probe 18 is fixed at the designated position above the generator set to prepare for testing; the data acquisition and analysis system 19 is opened, and environmental parameters of the environmental bin are set to meet the test conditions, namely the air inlet fan 3, the air conditioner 5 is started according to the test conditions, and the environmental parameters meet the requirements; then, the CO analyzer 16 is calibrated before testing, the standard gas cylinder 8 is opened, zero calibration and full-range calibration are respectively carried out, and the state to be tested is entered after calibration is finished; starting the generator set, enabling the system to enter a sampling test, opening the sampling pump 9 and the electromagnetic valve 13, starting the analyzer to collect and record the CO concentration in the environmental chamber, stopping the generator set when the concentration reaches a set value, and simultaneously calculating a concentration peak value and a process average value by the system. Meanwhile, when the monitoring probe 6 monitors that the concentration of CO in the environmental chamber exceeds a set safety value, the alarm 17 alarms and simultaneously the exhaust fan 7 is turned on to rapidly exhaust gas in the chamber until the CO value is reduced to the safety value, and then the exhaust fan is turned off.
The system is invented in view of the testing requirement of the CO emission of the generator set, and aims to accurately test the CO emission of the low-CO generator set so as to detect whether an alarm of the CO of the generator set can work normally. The system mainly comprises:
the environment bin meets international standards and is mainly used for providing environment temperature conditions meeting requirements for testing the unit;
the sampling system mainly comprises a filter, an electromagnetic valve, a sampling pump, a gas exhaust, a mass flowmeter and the like, is mainly used for carrying out quantitative sampling analysis on the tail gas discharged by the generator set, and simultaneously, the influence of the tail gas on the flowmeter and the analyzer is avoided by two-stage filtration;
the gas analyzer is used for carrying out quantitative analysis on the concentration of CO in the sampled gas;
the air inlet and exhaust system is used for ventilating air in the environmental chamber;
furthermore, the above definitions of the various elements and methods are not limited to the particular structures, shapes or arrangements of parts mentioned in the examples, which may be easily modified or substituted by one of ordinary skill in the art, for example:
(1) the sampling pump in the invention is a plunger type sampling pump, which can be replaced by other types of sampling pumps, and the sampling flow can meet the requirement of understanding;
(2) the analyzer in the invention is an infrared analyzer, and can be replaced by other types of analyzers meeting the requirements.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. A CO generating set emission test system, comprising:
the environment bin meets the international standard and is used for providing an environment temperature condition meeting the requirement for the test of the unit;
the sampling system is used for carrying out quantitative sampling analysis on the tail gas discharged by the generator set, and meanwhile, the influence of the tail gas on the flowmeter and the analyzer is avoided through two-stage filtration;
the gas analyzer is used for carrying out quantitative analysis on the concentration of CO in the sampled gas;
and the air inlet and exhaust system is used for ventilating air of the environmental chamber.
2. The testing system of claim 1, wherein the sampling system comprises a filter, a solenoid valve, a sampling pump, a gas vent, and/or a mass flow meter, wherein the sampling pump is a plunger-type sampling pump.
3. The test system of claim 1, wherein the gas analyzer is an infrared analyzer.
4. A method of testing using the CO genset emission testing system of any one of claims 1-3 comprising the steps of:
opening a data acquisition and analysis system, and setting environmental parameters of an environmental bin to enable the environmental parameters to meet test conditions;
calibrating a gas analyzer before testing, respectively performing zero calibration and full-range calibration, and entering a state to be tested after calibration is completed;
arranging a sampling probe, starting a generator set, enabling the system to enter a sampling test, recording the CO concentration in an environment bin by an analyzer, stopping the generator set when the concentration reaches a set value, and simultaneously calculating a concentration peak value and a process average value by the system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010516948.8A CN111504735A (en) | 2020-06-09 | 2020-06-09 | Low CO generator set emission test system and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010516948.8A CN111504735A (en) | 2020-06-09 | 2020-06-09 | Low CO generator set emission test system and test method |
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| Publication Number | Publication Date |
|---|---|
| CN111504735A true CN111504735A (en) | 2020-08-07 |
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| CN202010516948.8A Pending CN111504735A (en) | 2020-06-09 | 2020-06-09 | Low CO generator set emission test system and test method |
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|---|---|---|---|---|
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| CN103308317A (en) * | 2013-07-04 | 2013-09-18 | 交通运输部公路科学研究院 | Liquid water drainage quantity testing device and method of automobile exhaust pipe |
| WO2014053353A1 (en) * | 2012-10-04 | 2014-04-10 | Avl List Gmbh | Device and method for analysing a measurement gas |
| US20160139022A1 (en) * | 2014-11-19 | 2016-05-19 | Li Wan Yin | Device of testing particles in tail gas exhausted from automobile |
| CN205538815U (en) * | 2016-01-27 | 2016-08-31 | 天津世纪动力科技发展有限公司 | Full flow type motorcycle exhaust measurement system |
| CN107870222A (en) * | 2017-09-30 | 2018-04-03 | 中国汽车技术研究中心 | One kind is used for motor vehicle PEMS equipment uniformity comparison methods and its system |
| CN209042667U (en) * | 2018-08-27 | 2019-06-28 | 江西东硕实验室***工程有限公司 | A kind of laboratory integration air draft operation intelligent monitor system |
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-
2020
- 2020-06-09 CN CN202010516948.8A patent/CN111504735A/en active Pending
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| CN201413238Y (en) * | 2009-06-25 | 2010-02-24 | 天津市圣威科技发展有限公司 | Automobile emission detecting system with simple transient working condition |
| CN202121989U (en) * | 2011-05-19 | 2012-01-25 | 天津市永义畜禽养殖基地 | Pigsty with function of automatic ammonia treatment |
| WO2014053353A1 (en) * | 2012-10-04 | 2014-04-10 | Avl List Gmbh | Device and method for analysing a measurement gas |
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| US20160139022A1 (en) * | 2014-11-19 | 2016-05-19 | Li Wan Yin | Device of testing particles in tail gas exhausted from automobile |
| CN205538815U (en) * | 2016-01-27 | 2016-08-31 | 天津世纪动力科技发展有限公司 | Full flow type motorcycle exhaust measurement system |
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