CN113281230A - Heating stove pollutant emission and thermal efficiency evaluation test system and method for detecting pollutant emission factor and thermal efficiency - Google Patents
Heating stove pollutant emission and thermal efficiency evaluation test system and method for detecting pollutant emission factor and thermal efficiency Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 75
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 63
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 60
- 238000010438 heat treatment Methods 0.000 title claims abstract description 57
- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000011156 evaluation Methods 0.000 title claims abstract description 8
- 238000005070 sampling Methods 0.000 claims abstract description 46
- 239000012895 dilution Substances 0.000 claims abstract description 38
- 238000010790 dilution Methods 0.000 claims abstract description 38
- 238000002485 combustion reaction Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 80
- 239000000446 fuel Substances 0.000 claims description 26
- 239000000356 contaminant Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 239000011888 foil Substances 0.000 claims description 5
- 239000000779 smoke Substances 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 5
- 238000009792 diffusion process Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 4
- 238000011160 research Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 25
- 239000003570 air Substances 0.000 description 21
- 239000003245 coal Substances 0.000 description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000002028 Biomass Substances 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007865 diluting Methods 0.000 description 3
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 239000000243 solution Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000003738 black carbon Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004868 gas analysis Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009533 lab test Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004449 solid propellant Substances 0.000 description 1
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
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- G01M99/002—Thermal testing
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention provides a heating stove pollutant emission and thermal efficiency evaluation test system, and belongs to the technical field of detection devices. The system for evaluating and testing the pollutant emission and the heat efficiency of the heating stove comprises a fixed source combustion system and a test sampling system; the fixed source combustion system comprises a leakage test box body and a heating stove body arranged in the leakage test box body, and a metering device is arranged on the heating stove body; the testing and sampling system comprises a gas collecting hood, a built-in flowmeter dilution pipeline, a fan and a chimney which are sequentially communicated, wherein the gas collecting hood is arranged above the chimney of the heating stove body, at least one sampling port is formed in the dilution pipeline, and the sampling port is provided with a sampling pipe connected to a tester. The system for evaluating and testing the pollutant emission and the heat efficiency of the heating stove can simulate the dilution effect of smoke entering actual atmosphere in the actual use process of a user and help to research the generation and diffusion mechanism of a pollution source in the atmospheric environment.
Description
Technical Field
The invention relates to the technical field of detection devices, in particular to a heating stove pollutant emission and thermal efficiency evaluation test system and a method for detecting pollutant emission factors and thermal efficiency by using the test system.
Background
At present, nearly 60% of families in rural areas in China still use biomass and fire coal as main fuels of daily life, and the biomass and fire coal are influenced and restricted by living habits and economic conditions, and the complete prohibition of rural low-efficiency stoves and poor-quality fuels is still difficult. Data obtained according to the analysis result of the atmospheric pollutant source shows that rural heating pollution has very significant contribution to the formation and dispersion of regional dust haze, and can cause serious indoor air pollution in a family. In recent years, with health concerns of various environmental public welfare organizations, women and children's meetings, NGO and the like in developing rural areas in China, pollution emission of biomass and coal combustion has also received wide attention.
On-site testing is often more in resistance and has greater difficulty, so that developing a gas collecting hood sampling method and reducing the on-site effect as much as possible is one of effective methods for evaluating the furnace emission. The gas-collecting hood is used as a dilution sampling system, can simulate the smoke released by fuel during combustion, and collects PM discharged in the combustion process2.5And the gaseous pollutants are beneficial to the source analysis research of the atmospheric pollutants, the establishment of accurate composition and analysis of a source component spectrum is beneficial to the research of the generation and diffusion mechanism of the pollution source, and specific measures for pollution prevention and treatment can be made according to data analysis.
The complete combustion process needs to be measured aiming at the laboratory test of the civil heating stove. The traditional direct sampling method is limited by the concentration range of a measuring instrument, and generally cannot directly test the ignition stage, but the ignition stage is known to be the stage with the highest pollutant emission concentration according to real-time online measurement data of researchers, so that the ignition stage cannot be ignored.
Disclosure of Invention
Therefore, the present invention provides a system for evaluating and testing pollutant discharge and thermal efficiency of a heating stove, which can simulate the dilution effect of flue gas entering actual atmosphere during the actual use process of a user, and help to research the generation and diffusion mechanism of a pollution source in the atmospheric environment.
In order to achieve the purpose, the invention provides the following technical scheme:
a heating stove pollutant discharge and thermal efficiency evaluation test system comprises a fixed source combustion system and a test sampling system;
the fixed source combustion system comprises a leakage test box body and a heating stove body arranged in the leakage test box body, and a metering device is arranged on the heating stove body;
the testing and sampling system comprises a gas collecting hood, a dilution pipeline with a built-in flowmeter, a fan and a chimney which are sequentially communicated, wherein the gas collecting hood is arranged above the chimney of the heating stove body, at least one sampling port is formed in the dilution pipeline, and the sampling port is provided with a sampling pipe connected to a tester.
Preferably, the heating stove further comprises a water circulation system, the water circulation system comprises a water inlet pipe and a water outlet pipe which are arranged on the heating stove body, and heat meters are mounted on the water inlet pipe and the water outlet pipe.
Preferably, the water circulation system further comprises a water tank, the water tank is connected to the water inlet of the water inlet pipe through a three-way valve, and the water tank is connected to the water outlet of the water outlet pipe through a three-way valve.
Preferably, a hygrothermograph is arranged in the dilution pipeline.
Preferably, the flow meter is a pitot tube flow meter.
Preferably, the dilution passage comprises an aluminum foil corrugated pipe, a first air pipe, a second air pipe, a 90-degree elbow, a third air pipe and a flexible connecting pipe which are sequentially communicated from the outlet end of the gas-collecting hood.
Preferably, the metering device is a floor scale arranged at the bottom of the heating stove body.
Preferably, the sampling tube is parallel to the direction of gas flow.
Another object of the present invention is to provide a method for detecting a pollutant emission factor or a pollutant leakage factor by using the above test system, comprising the steps of:
the method comprises the following steps that firstly, a fixed source combustion system and a test sampling system are started, a sampling pipe and a tester are used for measuring the concentration of pollutants, a flow meter is used for measuring the gas flow rate of a dilution pipeline, and a metering device is used for measuring the fuel consumption;
step two, calculating the total emission of pollutants according to the concentration of the pollutants, the gas flow rate of the dilution pipeline and the fuel consumption measured in the step one, wherein a calculation formula is as follows:
in the formula:
MX-Total emission of contaminant X in g;
CX-concentration of contaminant in g/m3；
V is the gas flow velocity of the dilution pipeline, and the unit is m/s;
r-dilution pipe, unit m;
step three, substituting the total pollutant discharge amount measured in the step two into the following formula to calculate the discharge factor or the leakage factor, wherein the calculation formula is as follows:
in the formula:
EFx-pollutant discharge factor or pollutant leakage factor, unit is g/kg;
MF-fuel consumption in kg.
Another object of the present invention is to provide a method for detecting thermal efficiency by using the above test system, which comprises the following steps:
the method comprises the following steps that firstly, a fixed source combustion system, a test sampling system and a water circulation system are started, a calorimeter is used for measuring the temperature difference of inlet and outlet water, and a metering device is used for measuring the fuel consumption;
step two, calculating the thermal efficiency according to the following formula:
η＝cm1Δt/(m2q2-m3q3)；
in the formula:
eta-thermal efficiency,%;
c is the specific heat capacity of water, J/(kg. k);
m1-mass of water, kg;
delta t is the water temperature difference of the water inlet pipe and the water outlet pipe, k;
m2-mass of fuel, kg;
q2-the calorific value of the fuel, J/kg;
m3-mass of ash, kg;
q3-calorific value of ash, J/kg.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the system for evaluating and testing the pollutant emission and the heat efficiency of the heating stove, air flows upwards under the suction effect of the outlet fan during stove testing, smoke at the outlet of the fixed combustion source chimney and ambient air in the leakage test box body are sucked into the gas collecting hood together for collection, the dilution effect of the smoke entering actual atmosphere during the actual use process of a user is simulated, and the generation and diffusion mechanism of a pollution source in the atmospheric environment is researched.
2. According to the system for evaluating and testing the pollutant emission and the heat efficiency of the heating stove, when the leakage test box body of the fixed source combustion system tests the indoor pollutants of the stove, the external environment influence is isolated, and the pollutant leakage condition of the heating stove in the combustion process is evaluated.
3. The pollutant emission and thermal efficiency evaluation test system for the heating stove, provided by the invention, has the advantages that the weighbridge part of the source combustion system is fixed, so that the pollutant emission concentration generated by the combustion of solid fuel of the heating stove can be measured, the combustion rate and the combustion thermal efficiency of the fuel can be accurately measured, the emission factor of the corresponding pollutant is calculated, and the emission factor based on an energy receiving base can be calculated after the thermal efficiency is calculated.
4. According to the system for evaluating and testing the pollutant discharge and the heat efficiency of the heating stove, the water circulation system can simulate the actual condition of use of residents, the temperature difference of water at the inlet and the outlet is measured by the heat meter, the actual heat supply amount is calculated by the aid of the coal consumption and the heat value thereof in the heating time, and the actual heat supply amount is divided by the coal consumption and the heat value thereof to obtain the heating heat efficiency of the stove.
Drawings
FIG. 1 is a schematic structural diagram of a system for evaluating and testing pollutant discharge and thermal efficiency of a heating furnace according to the present invention;
in the figure, 1, M8 screw rod I, 2, a gas collecting hood, 3, an aluminum foil corrugated pipe, 4, air pipe I, 5, M8 screw rod II, 6, an air pipe fixing frame, a 7.90-degree elbow, 9, air pipe II, 10, a pipe seat, 11, air pipe III, 12, a soft connecting pipe, 13, a fan, 14, a fan bracket, 15, a chimney, 16, a heating stove body, 17, a weighbridge and 18, a leakage testing box body.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
As shown in fig. 1, the present invention provides a system for evaluating and testing pollutant discharge and thermal efficiency of a heating stove, which comprises a fixed source combustion system and a test sampling system;
the fixed source combustion system comprises a leakage test box body and a heating stove body 16 arranged in the leakage test box body, wherein a metering device is arranged on the heating stove body 16;
the testing and sampling system comprises a gas collecting hood 2, a dilution pipeline with a built-in flowmeter, a fan 13 and a chimney 15 which are sequentially communicated, wherein the gas collecting hood 2 is arranged above the chimney of the heating stove body 16, at least one sampling port (not shown) is formed in the dilution pipeline, and the sampling port is provided with a sampling pipe (not shown) connected to a tester.
In the above structure of the present invention, when the performance test is performed on the heating stove for civil use, the heating stove body 16 is arranged inside the leakage test box 18 for testing to isolate the influence of the external environment on the stove test, and the leakage test box 18 is also used for evaluating the pollutant leakage condition of the heating stove in the combustion process.
In the invention, the heating furnace further comprises a water circulation system, wherein the water circulation system comprises a water inlet pipe and a water outlet pipe which are arranged on the heating furnace body 16, heat meters are respectively arranged on the water inlet pipe and the water outlet pipe, and the purpose of arranging the heat meters on the water inlet pipe and the water outlet pipe is that the water temperature difference between the side material water inlet pipe and the water outlet pipe is prepared for calculating the heat efficiency.
In the invention, the water circulation system also comprises a water tank, the water tank is connected with the water inlet of the water inlet pipe through a three-way valve, and the water tank is connected with the water outlet of the water outlet pipe through a three-way valve.
In the invention, the water tank can be also provided with a heat exchange device which utilizes the heat of fuel combustion to heat the water in the water tank.
In the test system, water is introduced into a circulating water system during normal use, and the water can be directly drained when the experimental working condition fails. The water circulation system can simulate the actual situation of resident use, the water inlet pipe and the water outlet pipe are respectively connected to the heat meters, the heat efficiency is directly calculated by using the water temperature difference of the inlet and the outlet, meanwhile, the actual heat supply quantity is calculated by assisting the coal consumption and the heat value thereof in the heating time, and the heating heat efficiency is obtained by dividing the two.
In the invention, a hygrothermograph is arranged in the dilution pipeline and used for testing the temperature and humidity of the smoke and is connected to a paperless recorder for displaying numerical values.
In the present invention, the flow meter is a pitot tube flow meter.
In the invention, the dilution passage comprises an aluminum foil corrugated pipe 3, a first air pipe 4, a second air pipe 9, a 90-degree elbow 7, a third air pipe 11 and a flexible connecting pipe 12 which are sequentially communicated from the outlet end of the gas-collecting hood.
Preferably, the metering device is a floor scale 17 arranged at the bottom of the heating stove body 16, and the floor scale 17 is used for monitoring the quality change of the fuel in real time on line.
In the present invention, the sampling tube is parallel to the direction of the gas flow.
When the testing system of the invention operates, air flows upwards under the action of the suction force of the outlet fan, the smoke at the chimney outlet of the stove body 16 and the ambient air in the leakage testing box body 18 are sucked into the gas collecting hood 2 to be collected, so as to simulate the dilution effect when the smoke enters the actual atmosphere in the actual use process of a user, and the flow directions of the smoke and the diluted air are the same; the gas collecting hood 2 is connected with the diluting channel through an aluminum foil corrugated pipe 3, a sampling opening is formed in the diluting channel in parallel at a position one meter away from the ground, a sampling pipe extends into the diluting pipe section and is parallel to the direction of airflow, mixed gas is collected and sent into a tester, various pollutants in the gas are analyzed, and data are recorded through a computer.
Dilution pipeline among the test system is equipped with a plurality of sampling pipes along the circumference in same distance department to realize multichannel simultaneous sampling test, gaseous pollutant test instrument introduction port is the Teflon pipe with the sampling pipe intercommunication, adopt the black carbon pipe between particulate matter test instrument import appearance and the sampling pipe, with the loss of reduction pollutant on the pipe wall, the flue gas in the dilution pipeline is finally discharged to the open air with the fan directly, gaseous pollutant test instrument for the gas outlet Teflon pipe direct connection switch-on to the open air.
It should be noted that the connection between the air ducts in the dilution tunnel is a conventional connection interface, such as: the welding will not be described in detail herein. In the invention, in order to ensure the stability of the gas collecting hood 2, a screw I1 of M8 and a screw I5 of M8 are utilized to fix the gas collecting hood and are fixed on a top plate, a wind pipe fixing frame 6 is arranged at the installation position of a wind pipe I4 to fix the wind pipe I4, a pipe seat 10 is arranged at the connection position of a wind pipe III 11 and a 90-degree elbow 7 to fixedly support the wind pipe I and is fixed on the ground, a fan 13 comprises a motor and is fixed by a fan bracket 14, and a flexible connecting pipe is used for communicating the fan 13.
The invention also provides a method for detecting the emission factor by using the test system, which comprises the following steps:
the method comprises the following steps:
the heating stove body 16 to be detected is placed in the leakage test box 18, fuel is added, the heating use condition of residents is simulated, when indoor pollutants are tested by the leakage test box 18, the influence of the external environment on the stove test is isolated, and the base is additionally provided with the metering device, so that the combustion speed and the combustion heat efficiency of the fuel can be accurately measured by monitoring the quality change of the fuel in real time on line.
Starting a testing system, enabling air to flow upwards under the action of suction force of an outlet fan when the system runs, sucking smoke at the outlet of a chimney of a heating stove body 16 and ambient air in a leakage testing box body 18 into a gas collecting hood 2 for collection, and meanwhile, arranging an air inlet channel communicated with the outside on the leakage testing box body, and supplementing the air sucked into the gas collecting hood in the leakage testing box body by using the air inlet fan; the device is used for simulating the dilution effect of the smoke entering the actual atmosphere in the actual use process of a user, and the flow direction of the smoke is the same as that of dilution air. The sampling port is positioned at a position of the dilution channel one meter away from the ground, and a plurality of sampling pipes are arranged at the same distance from the center of the sampling port along the circumference so as to realize multi-channel simultaneous sampling measurement; the sampling pipe extends into the dilution pipe section and is parallel to the direction of the airflow.
The sampling pipe detects pollutants in the flue gas by the diluted flue gas analysis part. CO tester, NOXTester, SO2The tester and the particle tester analyze various pollutants in the gas, the sampling pipe and the tester are used for measuring the concentration of the pollutants, the flowmeter is used for measuring the gas flow velocity of the dilution pipeline, and the metering device is used for measuring the fuelConsumption; recording data by a computer;
step two: step two, calculating the total emission of pollutants according to the concentration of the pollutants, the gas flow rate of the dilution pipeline and the fuel consumption measured in the step one, wherein a calculation formula is as follows:
in the formula:
MX-Total emission of contaminant X in g;
CX-concentration of contaminant in g/m3；
V is the gas flow velocity of the dilution pipeline, and the unit is m/s;
r-dilution pipe, unit m;
in the above formula, i and t both refer to time, in units of s, from start time 0 to end time t, CV π R2The sum of (1);
step three, substituting the total pollutant discharge amount measured in the step two into the following formula to calculate the discharge factor or the leakage factor, wherein the calculation formula is as follows:
in the formula:
EFx-pollutant discharge factor or pollutant leakage factor, unit is g/kg;
MF-fuel consumption in kg.
The invention also provides a method for detecting thermal efficiency by using the test system, which comprises the following steps:
the method comprises the following steps that firstly, a fixed source combustion system, a test sampling system and a water circulation system are started, a calorimeter is used for measuring the temperature difference of inlet and outlet water, and a metering device is used for measuring the fuel consumption;
step two, calculating the thermal efficiency according to the following formula:
η＝cm1Δt/(m2q2-m3q3)；
in the formula:
eta-thermal efficiency,%;
c is the specific heat capacity of water, J/(kg. k);
m1-mass of water, kg;
delta t is the water temperature difference of the water inlet pipe and the water outlet pipe, k;
m2-mass of fuel, kg;
q2-the calorific value of the fuel, J/kg;
m3-mass of ash, kg;
q3-calorific value of ash, J/kg.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A heating stove pollutant discharge and thermal efficiency evaluation test system is characterized by comprising a fixed source combustion system and a test sampling system;
the fixed source combustion system comprises a leakage test box body and a heating stove body arranged in the leakage test box body, and a metering device is arranged on the heating stove body;
the testing and sampling system comprises a gas collecting hood, a dilution pipeline with a built-in flowmeter, a fan and a chimney which are sequentially communicated, wherein the gas collecting hood is arranged above the chimney of the heating stove body, at least one sampling port is formed in the dilution pipeline, and the sampling port is provided with a sampling pipe connected to a tester.
2. The system for evaluating and testing the pollutant discharge and the heat efficiency of the heating stove according to claim 1, further comprising a water circulation system, wherein the water circulation system comprises a water inlet pipe and a water outlet pipe which are arranged on the heating stove body, and heat meters are arranged on the water inlet pipe and the water outlet pipe.
3. The system of claim 2, wherein the water circulation system further comprises a water tank, the water tank is connected to the water inlet of the water inlet pipe through a three-way valve, and the water tank is connected to the water outlet of the water outlet pipe through a three-way valve.
4. The system for evaluating and testing pollutant discharge and thermal efficiency of a heating stove according to claim 1, wherein a hygrothermograph is arranged in the dilution pipe.
5. The system of claim 1, wherein the flow meter is a pitot tube flow meter.
6. The system for evaluating and testing pollutant discharge and thermal efficiency of a heating stove according to claim 1, wherein the dilution passage comprises an aluminum foil corrugated pipe, a first air pipe, a second air pipe, a 90-degree elbow, a third air pipe and a flexible connecting pipe which are sequentially communicated from the outlet end of the gas collecting hood.
7. The system for evaluating and testing the pollutant discharge and the thermal efficiency of the heating stove according to claim 1, wherein the metering device is a floor scale arranged at the bottom of the heating stove body.
8. The system for evaluating and testing pollutant discharge and heat efficiency of a heating stove according to claim 1, wherein the sampling pipe is parallel to the air flow direction.
9. A method for detecting pollutant emission factors or pollutant leakage factors by using the heating stove pollutant emission and thermal efficiency evaluation test system of any one of claims 1 to 8, which is characterized by comprising the following steps:
the method comprises the following steps that firstly, a fixed source combustion system and a test sampling system are started, a sampling pipe and a tester are used for measuring the concentration of pollutants, a flow meter is used for measuring the gas flow rate of a dilution pipeline, and a metering device is used for measuring the fuel consumption;
step two, calculating the total emission of pollutants according to the concentration of the pollutants, the gas flow rate of the dilution pipeline and the fuel consumption measured in the step one, wherein a calculation formula is as follows:
in the formula:
MX-Total emission of contaminant X in g;
CX-concentration of contaminant in g/m3；
V is the gas flow velocity of the dilution pipeline, and the unit is m/s;
r-dilution pipe, unit m;
step three, substituting the total pollutant discharge amount measured in the step two into the following formula to calculate the discharge factor or the leakage factor, wherein the calculation formula is as follows:
in the formula:
EFx-pollutant discharge factor or pollutant leakage factor, unit is g/kg;
MF-fuel consumption in kg.
10. A method for detecting thermal efficiency by using the system for evaluating and testing pollutant emission and thermal efficiency of a heating stove of any one of claims 2-8, which is characterized by comprising the following steps:
the method comprises the following steps that firstly, a fixed source combustion system, a test sampling system and a water circulation system are started, a calorimeter is used for measuring the temperature difference of inlet and outlet water, and a metering device is used for measuring the fuel consumption;
step two, calculating the thermal efficiency according to the following formula:
η＝cm1Δt/(m2q2-m3q3)；
in the formula:
eta-thermal efficiency,%;
c is the specific heat capacity of water, J/(kg. k);
m1-mass of water, kg;
delta t is the water temperature difference of the water inlet pipe and the water outlet pipe, k;
m2-mass of fuel, kg;
q2-the calorific value of the fuel, J/kg;
m3-mass of ash, kg;
q3-calorific value of ash, J/kg.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502156A (en) * | 2014-12-22 | 2015-04-08 | 北京航空航天大学 | Sampling system for atmospheric pollutants discharged by civil cooking range |
| CN105424421A (en) * | 2015-11-06 | 2016-03-23 | 中国环境科学研究院 | Sampling system and method for particulate matter in coal-fired flue gas of negative pressure closed civil stove |
| JP6446160B2 (en) * | 2016-08-01 | 2018-12-26 | 株式会社エコ・サポート | Evaluation test apparatus and evaluation test system |
| CN110231262A (en) * | 2019-05-21 | 2019-09-13 | 北京航空航天大学 | A kind of civilian solid fuel ignition Air Pollutant Emission on-site detecting device |
| CN212410349U (en) * | 2019-12-26 | 2021-01-26 | 北京北方节能环保有限公司 | Device for testing pollution discharge of civil heating stove in laboratory |
| CN112577787A (en) * | 2020-12-21 | 2021-03-30 | 贵州省环境科学研究设计院 | Sampling and monitoring system and method for atmospheric pollutants discharged by rural household cooking range |
-
2021
- 2021-05-19 CN CN202110547006.0A patent/CN113281230A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502156A (en) * | 2014-12-22 | 2015-04-08 | 北京航空航天大学 | Sampling system for atmospheric pollutants discharged by civil cooking range |
| CN105424421A (en) * | 2015-11-06 | 2016-03-23 | 中国环境科学研究院 | Sampling system and method for particulate matter in coal-fired flue gas of negative pressure closed civil stove |
| JP6446160B2 (en) * | 2016-08-01 | 2018-12-26 | 株式会社エコ・サポート | Evaluation test apparatus and evaluation test system |
| CN110231262A (en) * | 2019-05-21 | 2019-09-13 | 北京航空航天大学 | A kind of civilian solid fuel ignition Air Pollutant Emission on-site detecting device |
| CN212410349U (en) * | 2019-12-26 | 2021-01-26 | 北京北方节能环保有限公司 | Device for testing pollution discharge of civil heating stove in laboratory |
| CN112577787A (en) * | 2020-12-21 | 2021-03-30 | 贵州省环境科学研究设计院 | Sampling and monitoring system and method for atmospheric pollutants discharged by rural household cooking range |
Non-Patent Citations (1)
| Title |
|---|
| 奚旦立: "《环境工程手册 环境监测卷》", 高等教育出版社, pages: 916 * |
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