CN210638972U - Constant velocity flue gas composition measuring device based on ASME standard - Google Patents
Constant velocity flue gas composition measuring device based on ASME standard Download PDFInfo
- Publication number
- CN210638972U CN210638972U CN201921158480.9U CN201921158480U CN210638972U CN 210638972 U CN210638972 U CN 210638972U CN 201921158480 U CN201921158480 U CN 201921158480U CN 210638972 U CN210638972 U CN 210638972U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- sampling
- smoke
- mixing tank
- air pump
- 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.)
- Active
Links
Images
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a constant speed flue gas composition measuring device based on ASME standard, which comprises a plurality of flue gas sampling guns for sampling, a flue gas mixing tank for mixing the sampled flue gas, a vacuum air pump arranged at the outlet end of the flue gas mixing tank for pumping out the mixed flue gas and a flue gas analyzer arranged at the outlet end of the vacuum air pump for analyzing the flue gas composition; a pipeline connected with each smoke sampling gun and the smoke mixing tank is respectively provided with a float flowmeter for adjusting the amount of the extracted smoke; and a floater flowmeter for regulating the flow of the flue gas entering the flue gas analyzer is arranged on a pipeline for connecting the vacuum suction pump and the flue gas analyzer. The utility model discloses a ASME standard is tested a net and is divided, acquires the equivalent flue gas extraction volume of each net sampling point, finally carries out flue gas analysis in flue gas analyzer, and measurement flue gas composition that like this can be more accurate provides accurate measured data for power plant technical staff.
Description
Technical Field
The utility model relates to a flue gas composition measures technical field, especially a constant velocity flue gas composition measuring device based on ASME standard.
Background
The power plant boiler can generate a large amount of high-temperature flue gas during combustion, the high-temperature flue gas contains dust, SO2, NOx, N2, CO2, SO3, CO and other gases, and the components of the flue gas reflect the real running state of the boiler, SO that the method is an important basis for technicians to judge the running state of the boiler and protect the environment and discharge. In order to specifically measure the components in the flue gas, the flue gas needs to be sampled and analyzed.
Along with the deepening of the electric power unit to high-capacity high-parameter and unit transformation, the flue section is gradually increased, the smoke component measurement positions meeting the ASME standard requirements are less and less, and the smoke flow of the measurement surface is uneven. If the measurement is carried out according to the traditional measurement method, the number of measurement points is too small, the measured data fluctuates along with the fluctuation of the smoke components at the positions of the measurement points, the measurement result cannot represent the actual value of the measurement surface of the whole flue, the deviation between the measurement result and the actual value is large, technicians cannot accurately measure the smoke components of the boiler of the power plant, and the smoke cannot be sampled and analyzed.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve provides a constant velocity flue gas composition measuring device based on the ASME standard, measurement flue gas composition that can be more accurate provides accurate measured data for power plant technical staff.
In order to solve the technical problem, the utility model adopts the following technical proposal.
A constant-speed smoke component measuring device based on ASME standard comprises a plurality of smoke sampling guns for sampling, a smoke mixing tank for mixing sampled smoke, a vacuum air pump arranged at the outlet end of the smoke mixing tank and used for pumping the mixed smoke out, and a smoke analyzer arranged at the outlet end of the vacuum air pump and used for analyzing smoke components; a pipeline connected with each smoke sampling gun and the smoke mixing tank is respectively provided with a float flowmeter for adjusting the amount of the extracted smoke; and a floater flowmeter for regulating the flow of the flue gas entering the flue gas analyzer is arranged on a pipeline for connecting the vacuum suction pump and the flue gas analyzer.
The utility model provides an above-mentioned constant velocity flue gas composition measuring device based on ASME standard, this measuring device is still including the high accuracy pitot tube that is used for detecting the test point department flue gas velocity of flow and the high accuracy pressure gauge that is used for showing velocity of flow information, and the input at the high accuracy pressure gauge is connected to the high accuracy pitot tube output.
According to the constant-speed smoke component measuring device based on the ASME standard, the outlet end of the vacuum air pump is provided with the exhaust pipe for exhausting, and the exhaust pipe is provided with the float flowmeter for adjusting the exhaust flow.
Due to the adoption of the technical scheme, the utility model has the following technical progress.
The utility model discloses a ASME standard is tested a net and is divided, acquires the equivalent flue gas extraction volume of each net sampling point, finally carries out flue gas analysis in flue gas analyzer, and measurement flue gas composition that like this can be more accurate provides accurate measured data for power plant technical staff.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a high precision Pitot tube of the present invention;
fig. 3 is a schematic diagram of ASME meshing according to the present invention;
wherein: 1. the device comprises a flue gas sampling gun, 2 float flow meters, 3 flue gas mixing tanks, 4 vacuum air pumps, 5 flue gas analyzers, 6 exhaust pipes, 7 high-precision pitot tubes and 8 high-precision pressure gauges.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model provides a constant velocity flue gas composition measuring device based on ASME standard, its structure is shown as fig. 1-2, including flue gas sampling gun 1, flue gas blending tank 3, vacuum aspiration pump 4, flue gas analysis appearance 5, high accuracy pitot tube 7 and high accuracy pressure gauge 8. The flue gas sampling gun 1 is used for sampling, and the flue gas blending tank 3 is used for mixing the flue gas of sampling, and vacuum aspiration pump 4 is used for pumping the flue gas after mixing out, and flue gas analyzer 5 is used for the analysis flue gas composition, and high accuracy pitot tube 7 is used for detecting the testing point department flue gas velocity of flow, and high accuracy pressure gauge 8 is used for showing velocity of flow information. The output end of the high-precision Pitot tube 7 is connected with the input end of the high-precision pressure gauge 8.
Flue gas sampling rifle 1 is provided with a plurality of, and the measurement face net of requiring to divide according to the ASME standard confirms the sampling position, arranges flue gas sampling rifle 1's position, the utility model discloses well ASME meshing's schematic diagram is shown in fig. 3. Each flue gas sampling gun 1 is connected with the inlet end of a flue gas mixing tank 3 through a pipeline, and a floater flowmeter 2 is arranged on the pipeline connected with each flue gas sampling gun 1 and the flue gas mixing tank 3 and used for adjusting the amount of extracted flue gas. The outlet end of the flue gas mixing tank 3 is connected with a vacuum air pump 4 through a pipeline, the outlet end of the vacuum air pump 4 is connected with a flue gas analyzer 5, and a float flowmeter 2 is arranged on the pipeline between the flue gas analyzer 5 and the vacuum air pump 4 and used for adjusting the flow of flue gas entering the flue gas analyzer 5. The flue gas that flue gas sampling rifle 1 was sampled is mixed to flue gas blending tank 3, and the flue gas after the mixture is pumped through vacuum aspiration pump 4 and is sent flue gas analyzer 5, and flue gas analyzer carries out the analysis to flue gas composition.
In order to enable the air inlet pressure and the air outlet pressure of the flue gas mixing tank 3 to reach a balanced state, an exhaust pipe 6 is arranged at the outlet end of the vacuum sampling pump 4 and used for exhausting the pumped redundant gas, and a float flowmeter 2 is arranged on the exhaust pipe 6 and used for adjusting the exhaust flow.
The smoke flow rate of each detection point is detected by detection personnel by using the precision pitot tube 7, the detection flow rate information is displayed on the high-precision pressure gauge 8, the extraction proportion of each detection point is determined, the smoke volume extracted by each detection point is adjusted by adjusting the float flowmeter 2 connected with the smoke sampling gun 1, the smoke volume with the same quantity is finally extracted at each detection point, and the smoke volume is mixed by the smoke mixing tank 3 and then enters the smoke analyzer 5 for smoke component measurement.
The utility model discloses simple structure, the operation degree of difficulty are low, through the meshing of ASME standard, carry out the flow measurement of high accuracy, acquire the equivalent flue gas extraction volume of each net sampling point, finally carry out flue gas analysis in flue gas analyzer, and measurement flue gas composition that like this can be more accurate provides accurate measured data for power plant's technical staff.
Claims (3)
1. The utility model provides a constant velocity flue gas composition measuring device based on ASME standard which characterized in that: the device comprises a plurality of flue gas sampling guns (1) for sampling, a flue gas mixing tank (3) for mixing the sampled flue gas, a vacuum air pump (4) arranged at the outlet end of the flue gas mixing tank (3) for pumping the mixed flue gas out, and a flue gas analyzer (5) arranged at the outlet end of the vacuum air pump (4) for analyzing the components of the flue gas; a pipeline connected with each flue gas sampling gun (1) and the flue gas mixing tank (3) is respectively provided with a float flowmeter (2) for adjusting the amount of the extracted flue gas; and a floater flowmeter (2) used for regulating the flow of flue gas entering the flue gas analyzer (5) is arranged on a pipeline connected with the vacuum air pump (4) and the flue gas analyzer (5).
2. The ASME standard-based isovelocity smoke composition measuring apparatus according to claim 1, wherein: this measuring device still includes high accuracy pitot tube (7) that are used for detecting the detection point department flue gas velocity of flow and is used for showing high accuracy pressure gauge (8) of velocity of flow information, and the input at high accuracy pressure gauge (8) is connected to high accuracy pitot tube (7) output.
3. The ASME standard-based isovelocity smoke composition measuring apparatus according to claim 1, wherein: an exhaust pipe (6) used for exhausting is arranged at the outlet end of the vacuum air pump (4), and a float flowmeter (2) used for adjusting the exhaust flow is arranged on the exhaust pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921158480.9U CN210638972U (en) | 2019-07-23 | 2019-07-23 | Constant velocity flue gas composition measuring device based on ASME standard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921158480.9U CN210638972U (en) | 2019-07-23 | 2019-07-23 | Constant velocity flue gas composition measuring device based on ASME standard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210638972U true CN210638972U (en) | 2020-05-29 |
Family
ID=70799925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921158480.9U Active CN210638972U (en) | 2019-07-23 | 2019-07-23 | Constant velocity flue gas composition measuring device based on ASME standard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210638972U (en) |
-
2019
- 2019-07-23 CN CN201921158480.9U patent/CN210638972U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204085645U (en) | With the gas flow standard device of self calibration structure | |
| CN101354273B (en) | Method and device for measuring compound type gas flow | |
| CN103471686B (en) | A kind of gas flow standard device and application process thereof | |
| CN202141562U (en) | Coal-fired boiler air preheater air leakage on-line monitoring device | |
| WO2019000259A1 (en) | Detection device and method for circulating type gas turbine flowmeter | |
| CN203479371U (en) | Gas flow standard device | |
| CN104729637A (en) | Turbine flowmeter online calibration system and method | |
| CN101446505B (en) | System for calibrating ultrasonic flowmeter by time difference method | |
| CN114563492A (en) | Gas sensor inspection device for pipeline and test method | |
| CN202501910U (en) | Calibrating device for heavy caliber gas flow | |
| CN102288730A (en) | Method and device for measuring fog drop content | |
| CN210638972U (en) | Constant velocity flue gas composition measuring device based on ASME standard | |
| CN209639805U (en) | A kind of aerospace automatic calibration unit for gas flowmeters | |
| CN100470017C (en) | Method for determining running state of gas turbine | |
| CN216815992U (en) | Filter integrality tester calibrating device | |
| CN111189979A (en) | Gas sensor calibration device | |
| CN211904339U (en) | On-line detection standard device for small-flow gas flowmeter | |
| CN107830979B (en) | Visual pilot cobalt target cobalt rod flow induced vibration experimental device | |
| CN210426717U (en) | Sound velocity nozzle calibrating device | |
| CN102103045B (en) | Constant speed mechanical water sampling device and sampling method | |
| CN112547294B (en) | Method for acquiring inlet air volume of medium-speed coal mill under thermal state | |
| CN209821022U (en) | Ground calibration and measurement device of pulverized coal concentration measurement system | |
| CN108254034A (en) | A kind of Novel oil gas moisture phase flow rate on-line metering device and its metering method | |
| CN113945432A (en) | Sampling device and sampling method of flue gas monitoring system | |
| CN203534679U (en) | Correction system of orifice plate flow meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee after: Hebei Jiantou energy science and Technology Research Institute Co.,Ltd. Address before: 050000 2nd floor, Yingpan commercial and residential building, 129 Nanxiao street, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee before: HEBEI JI-YAN ENERGY SCIENCE AND TECHNOLOGY RESEARCH INSTITUTE Co.,Ltd. |