CN111397978A - Straw combustion gas sampling method and device - Google Patents
Straw combustion gas sampling method and device Download PDFInfo
- Publication number
- CN111397978A CN111397978A CN202010487218.XA CN202010487218A CN111397978A CN 111397978 A CN111397978 A CN 111397978A CN 202010487218 A CN202010487218 A CN 202010487218A CN 111397978 A CN111397978 A CN 111397978A
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- Prior art keywords
- filter membrane
- cooling shell
- mounting cylinder
- combustion gas
- gas
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- 239000010902 straw Substances 0.000 title claims abstract description 43
- 239000000567 combustion gas Substances 0.000 title claims abstract description 30
- 238000005070 sampling Methods 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000012528 membrane Substances 0.000 claims abstract description 77
- 238000001816 cooling Methods 0.000 claims abstract description 67
- 239000007789 gas Substances 0.000 claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- 238000004377 microelectronic Methods 0.000 claims description 6
- 239000010453 quartz Substances 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 238000003825 pressing Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000009434 installation Methods 0.000 description 9
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010411 cooking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000000126 substance Substances 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
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- 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
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0637—Moving support
- G01N15/0643—Moving support of the filter type
-
- 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
- G01N2001/2282—Devices for withdrawing samples in the gaseous state with cooling means
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention relates to the technical field of gas detection, in particular to a method and a device for sampling straw combustion gas, wherein the sampling method comprises the steps of S1-S9; the continuous low-temperature cooling of the filter membrane is realized by placing the ice blocks in the cooling shell, so that the measurement precision is effectively improved; the collecting device comprises a supporting plate, a triangular bracket, a cooling shell, a filter cover, a sealing part, a filter membrane mounting cylinder, an air pump, a conduit, an air flow control valve and an air flow meter; the supporting plate is horizontally arranged, the cooling shell is arranged on the supporting plate, and the triangular support is arranged below the supporting plate; the filter membrane mounting cylinder and the cooling shell are coaxially arranged in the cooling shell, the sealing part is positioned between the filter membrane mounting cylinder and the cooling shell, and the sealing part is fixed on the inner wall of the mounting cylinder; collecting gas by matching the gas pump, the conduit and the filter membrane mounting cylinder; the volatilization of the collected sample on the filter membrane is reduced by matching the cooling shell and the filter membrane mounting cylinder, so that the collection accuracy is improved.
Description
Technical Field
The invention relates to the technical field of gas detection, in particular to a method and a device for sampling straw combustion gas.
Background
The straw burning brings a great deal of harm to the environment, the straw is left with fire in the rural area for cooking, along with the popularization and the use of liquefied gas and natural gas, the utilization efficiency of the straw is very low, and the problem that the straw cannot be stacked is solved by burning a lot of straws; therefore, the harmful effects caused by burning the straw need to be introduced to the people by analyzing the gas generated by burning the straw and using effective data, and an effective gas collecting method and device are needed to solve the technical problem.
Disclosure of Invention
Objects of the invention
The invention provides a method and a device for sampling straw combustion gas, which are used for collecting straw combustion gas and can reduce volatilization of detection substances caused by high temperature; the continuous low-temperature cooling of the filter membrane is realized by placing the ice blocks in the cooling shell, so that the measurement precision is effectively improved.
(II) technical scheme
In order to solve the problems, the invention provides a method for sampling straw combustion gas, which is characterized by comprising the following steps of:
s1, placing the filter membrane in a microelectronic balance for weighing, and recording the weighed mass as m;
s2, installing the filter membrane in the gas acquisition device, and pressing and attaching the filter membrane through a sealing part in the gas acquisition device;
s3, placing the ice blocks in a cooling shell of the gas collecting device for cooling the gas collecting device;
s4, placing the collecting device in a straw burning place, collecting straw burning gas, and recording the flow of the gas as v;
s5, performing routine calibration on the collecting device at regular time during the straw combustion gas collecting period;
s6, continuously collecting the straw combustion gas for 24 hours, and then placing the filter membrane in a refrigerated cabinet for storage;
s7, placing the filter membrane in a constant temperature and humidity box for storage for 24 h;
s8, placing the filter membrane processed in the S7 in a microelectronic balance, wherein the weighing mass of the filter membrane is M;
and S9, calculating the mass concentration of PM2.5 in the collected gas.
Preferably, the filter membrane is a quartz filter membrane.
Preferably, the quartz filter membrane is baked at high temperature in a muffle furnace before use.
Preferably, the temperature in the constant temperature and humidity chamber in S7 is set to be 20-30 ℃, and the humidity in the constant temperature and humidity chamber is 35-45%.
Preferably, the ice cubes in the cooling case of the gas collecting device at S3 need to be replaced at regular intervals.
The invention also provides a straw combustion gas sampling device, which comprises a supporting plate, a triangular bracket, a cooling shell, a filter cover, a sealing part, a filter membrane mounting cylinder, an air pump, a conduit, an air flow control valve and an air flow meter; the supporting plate is horizontally arranged, the cooling shell is arranged on the supporting plate, and the triangular support is arranged below the supporting plate; the cooling shell is an annular cylinder with two ends in the axial direction in an opening structure, the axial direction of the cooling shell is in the vertical direction, the lower end of the cooling shell is fixed on the supporting plate in a seamless mode, the filter cover is detachably arranged at the upper end of the cooling shell, the filter cover is in a spherical shape with an upward convex surface, and filter holes are formed in the filter cover; the filter membrane mounting cylinder and the cooling shell are coaxially arranged in the cooling shell, the sealing part is positioned between the filter membrane mounting cylinder and the cooling shell, the sealing part is fixed on the inner wall of the mounting cylinder, and the sealing part is used for sealing a gap between the mounting cylinder and the cooling shell; the filter membrane installation cylinder is detachably provided with a filter membrane, and the lower end of the filter membrane installation cylinder is fixed on the support plate in a seamless mode; the lower end of the cooling shell is provided with a mounting hole used for being matched with the guide pipe; the air pump is fixed on the supporting plate, the input end of the air pump is communicated with one end of the guide pipe, and the other end of the guide pipe penetrates through the mounting hole at the lower end of the cooling shell and is communicated with the lower end of the filter membrane mounting cylinder; the guide pipe is provided with a gas flow control valve and a gas flow meter; the curved wall of the cooling shell is provided with an ice block inlet, the lower end of the curved wall of the cooling shell is provided with a water outlet, the water outlet is connected with a water outlet pipe, and the water outlet pipe is provided with a switch valve.
Preferably, the upper end of the filter mounting cylinder is funnel-shaped.
Preferably, the closing member is an annular clamping block, and a clamping groove used for being matched with the filter membrane installation cylinder is formed in one surface, facing the axis of the clamping block, of the clamping block.
In the straw combustion gas sampling method, the filter membrane is continuously cooled at low temperature by placing the ice blocks in the cooling shell, so that the measurement precision is effectively improved; in the straw combustion gas sampling device, gas is collected through the matching of the gas pump, the guide pipe and the filter membrane mounting cylinder; the volatilization of the collected sample on the filter membrane is reduced by matching the cooling shell and the filter membrane mounting cylinder, so that the collection accuracy is improved.
Drawings
FIG. 1 is a flow chart of a straw combustion gas sampling method provided by the invention.
Fig. 2 is a schematic structural diagram of a straw combustion gas sampling device provided by the invention.
Reference numerals: 1. a support plate; 2. a triangular bracket; 3. cooling the shell; 4. a filter housing; 5. a closure member; 6. a filter membrane mounting cylinder; 7. an air pump; 8. a conduit; 9. a gas flow control valve; 11. a gas flow meter; 12. an ice block input port; 13. a water outlet; 14. a card slot; 15. and (5) filtering the membrane.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in the figures 1-2, the invention provides a straw combustion gas sampling method, which comprises the following steps:
s1, placing the filter membrane 15 in a microelectronic balance for weighing, and recording the weighed mass as m;
s2, installing the filter membrane 15 in the gas acquisition device, and pressing and attaching the filter membrane 15 through the sealing part 5 in the gas acquisition device; it is used for preventing to gather the air and flow from filter membrane 15, has avoided the insufficient phenomenon of sample collection to collection efficiency has been improved.
S3, placing the ice blocks in the cooling shell 3 of the gas collecting device for cooling the gas collecting device; when collecting straw combustion gas, because gaseous temperature is higher, make collection sample on the filter membrane 15 volatilize easily, through placing the ice-cube in cooling shell 3 for lower the temperature to filter membrane 15, thereby effectively avoided volatilizing of sample, thereby improved the collection efficiency of sample.
S4, placing the collecting device in a straw burning place, collecting straw burning gas, and recording the flow of the gas as v;
s5, performing routine calibration on the collecting device at regular time during the straw combustion gas collecting period;
s6, continuously collecting the straw combustion gas for 24 hours, and then placing the filter membrane 15 in a refrigerated cabinet for storage;
s7, placing the filter membrane 15 in a constant temperature and humidity box for storage for 24 h;
s8, placing the filter membrane 15 processed by the S7 in a microelectronic balance, wherein the weighing mass is M;
s9, calculating the mass concentration of PM2.5 in the collected gas, wherein the formula is that C = (M-M)/(t × v)
Wherein C is the mass concentration of PM 2.5; t is the continuous collection time of the straw combustion gas;
continuous low-temperature cooling of the filter membrane 15 is achieved by placing ice cubes in the cooling shell 3, thereby effectively improving the accuracy of the measurement.
In an alternative embodiment, the filter membrane 15 is a quartz filter membrane.
In an alternative embodiment, the quartz filter membrane is subjected to a muffle furnace high temperature bake-out prior to use.
In an optional embodiment, the temperature in the constant temperature and humidity chamber in the S7 is set to be 20-30 ℃, and the humidity in the constant temperature and humidity chamber is 35% -45%.
In an alternative embodiment, it is characterized in that the gas collecting means in S3 cools the ice cubes in the shell 3 to be replaced at regular intervals.
A straw combustion gas sampling device comprises a supporting plate 1, a triangular bracket 2, a cooling shell 3, a filter cover 4, a sealing part 5, a filter membrane mounting cylinder 6, an air pump 7, a guide pipe 8, an air flow control valve 9 and an air flow meter 11; the supporting plate 1 is horizontally arranged, the cooling shell 3 is arranged on the supporting plate 1, and the triangular support 2 is arranged below the supporting plate 1; the cooling shell 3 is an annular cylinder with two open ends along the axial direction, the axial direction of the cooling shell 3 is in the vertical direction, the lower end of the cooling shell 3 is fixed on the support plate 1 in a seamless manner, the filter cover 4 is detachably arranged at the upper end of the cooling shell 3, the filter cover 4 is in a spherical shape with an upward convex surface, and the filter cover 4 is provided with filter holes; the filter membrane mounting cylinder 6 and the cooling shell 3 are coaxially arranged in the cooling shell 3, the sealing part 5 is positioned between the filter membrane mounting cylinder 6 and the cooling shell 3, the sealing part 5 is fixed on the inner wall of the mounting cylinder 6, and the sealing part 5 is used for sealing a gap between the mounting cylinder 6 and the cooling shell 3; the filter membrane installation cylinder 6 is detachably provided with a filter membrane 15, and the lower end of the filter membrane installation cylinder 6 is fixed on the support plate 1 in a seamless manner; the lower end of the cooling shell 3 is provided with a mounting hole used for being matched with the guide pipe 8; the air pump 7 is fixed on the support plate 1, the input end of the air pump 7 is communicated with one end of the conduit 8, and the other end of the conduit 8 passes through the mounting hole at the lower end of the cooling shell 3 and is communicated with the lower end of the filter membrane mounting cylinder 6; the conduit 8 is provided with a gas flow control valve 9 and a gas flow meter 11; the curved wall of the cooling shell 3 is provided with an ice block inlet 12, the lower end of the curved wall of the cooling shell 3 is provided with a water outlet 13, the water outlet 13 is connected with a water outlet pipe, and the water outlet pipe is provided with a switch valve.
Gas is collected by the matching of the air pump 7, the conduit 8 and the filter membrane installation cylinder 6; the volatilization of the collected sample on the filter membrane 15 is reduced by the matching of the cooling shell 3 and the filter membrane installation cylinder 6, thereby improving the collection accuracy
In an alternative embodiment, the upper end of the filter mounting cylinder 6 is funnel-shaped. The sealing component 5 is an annular clamping block, and a clamping groove 14 used for being matched with the filter membrane mounting cylinder 6 is formed in one surface, facing the axis of the clamping block, of the clamping block. The filter membrane installation cylinder 6 is matched with the clamping groove 14 for use, so that the filter membrane installation cylinder 6 is clamped in the clamping groove 14 in a seamless mode, the sample gas is effectively prevented from flowing out of the edge of the filter membrane 15, and the collection efficiency of the sample gas is improved.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. A straw combustion gas sampling method is characterized by comprising the following steps:
s1, placing the filter membrane (15) in a microelectronic balance for weighing, and recording the weighed mass as m;
s2, installing the filter membrane (15) in the gas acquisition device, and pressing and attaching the filter membrane (15) through a sealing part (5) in the gas acquisition device;
s3, placing the ice blocks in a cooling shell (3) of the gas collecting device for cooling the gas collecting device;
s4, placing the collecting device in a straw burning place, collecting straw burning gas, and recording the flow of the gas as v;
s5, performing routine calibration on the collecting device at regular time during the straw combustion gas collecting period;
s6, continuously collecting the straw combustion gas for 24 hours, and then placing the filter membrane (15) in a refrigerated cabinet for storage;
s7, placing the filter membrane (15) in a constant temperature and humidity box for storage for 24 h;
s8, placing the filter membrane (15) processed by the S7 in a microelectronic balance, wherein the weighing mass is M;
and S9, calculating the mass concentration of PM2.5 in the collected gas.
2. The straw combustion gas sampling method as defined in claim 1, wherein the filter membrane (15) is a quartz filter membrane.
3. The straw combustion gas sampling method as defined in claim 2, wherein the quartz filter membrane is baked at a high temperature in a muffle furnace before use.
4. The straw combustion gas sampling method as claimed in claim 1, wherein the temperature in the constant temperature and humidity chamber in S7 is set to be 20-30 ℃, and the humidity in the constant temperature and humidity chamber is 35% -45%.
5. The straw combustion gas sampling method as defined in claim 1, wherein the ice cubes in the cooling shell (3) of the gas collection device in S3 need to be replaced at regular intervals.
6. A straw combustion gas sampling device is characterized by comprising a supporting plate (1), a triangular support (2), a cooling shell (3), a filter cover (4), a sealing part (5), a filter membrane mounting cylinder (6), an air pump (7), a guide pipe (8), an air flow control valve (9) and an air flow meter (11); the support plate (1) is horizontally arranged, the cooling shell (3) is arranged on the support plate (1), and the triangular support (2) is arranged below the support plate (1); the cooling shell (3) is an annular cylinder with two ends in the axial direction being of an open structure, the axial direction of the cooling shell (3) is in the vertical direction, the lower end of the cooling shell (3) is fixed on the support plate (1) in a seamless manner, the filter cover (4) is detachably arranged at the upper end of the cooling shell (3), the filter cover (4) is in a spherical shape with an upward convex surface, and the filter cover (4) is provided with filter holes; the filter membrane mounting cylinder (6) and the cooling shell (3) are coaxially arranged in the cooling shell (3), the sealing part (5) is positioned between the filter membrane mounting cylinder (6) and the cooling shell (3), the sealing part (5) is fixed on the inner wall of the mounting cylinder (6), and the sealing part (5) is used for sealing a gap between the mounting cylinder (6) and the cooling shell (3); a filter membrane (15) is detachably arranged in the filter membrane mounting cylinder (6), and the lower end of the filter membrane mounting cylinder (6) is fixed on the support plate (1) in a seamless manner; the lower end of the cooling shell (3) is provided with a mounting hole used for being matched with the guide pipe (8); the air pump (7) is fixed on the support plate (1), the input end of the air pump (7) is communicated with one end of the guide pipe (8), and the other end of the guide pipe (8) penetrates through the mounting hole at the lower end of the cooling shell (3) and is communicated with the lower end of the filter membrane mounting cylinder (6); the guide pipe (8) is provided with a gas flow control valve (9) and a gas flow meter (11); an ice block inlet (12) is arranged on the curved wall of the cooling shell (3), a water outlet (13) is arranged at the lower end of the curved wall of the cooling shell (3), a water outlet pipe is connected to the water outlet (13), and a switch valve is arranged on the water outlet pipe.
7. The straw combustion gas sampling device as defined in claim 6, wherein the upper end of the filter membrane mounting cylinder (6) is funnel-shaped.
8. The straw combustion gas sampling device as defined in claim 7, wherein the closing member (5) is an annular block, and a clamping groove (14) for matching with the filter membrane mounting cylinder (6) is formed on one surface of the block facing the axis of the block.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526819.4A CN110132662A (en) | 2019-06-18 | 2019-06-18 | Straw combustion gas sampling method and device |
| CN2019105268194 | 2019-06-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111397978A true CN111397978A (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910526819.4A Withdrawn CN110132662A (en) | 2019-06-18 | 2019-06-18 | Straw combustion gas sampling method and device |
| CN202010487218.XA Pending CN111397978A (en) | 2019-06-18 | 2020-06-02 | Straw combustion gas sampling method and device |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910526819.4A Withdrawn CN110132662A (en) | 2019-06-18 | 2019-06-18 | Straw combustion gas sampling method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110132662A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4442699A (en) * | 1980-02-25 | 1984-04-17 | Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie | Monitoring the dust content of gaseous fluid |
| CN1108764A (en) * | 1993-09-09 | 1995-09-20 | 日本钢管株式会社 | Apparatus for automatically measuring dust concentration in flue gas |
| US20020020232A1 (en) * | 2000-08-09 | 2002-02-21 | Horiba, Ltd. | Exhaust gas sampling device |
| US20040139785A1 (en) * | 2002-11-18 | 2004-07-22 | Abdul-Khalek Imad Said | Apparatus and method for real-time measurement of mass, size and number of solid particles of particulate matter in engine exhaust |
| US20100242463A1 (en) * | 2009-03-31 | 2010-09-30 | Ibiden Co., Ltd. | Particulate matter concentration measuring apparatus |
| CN203365264U (en) * | 2013-04-08 | 2013-12-25 | 江西怡杉环保有限公司 | Sampling and weighing device for online monitoring of concentrations of atmospheric particulate matters with gravimetric method |
| US20140083167A1 (en) * | 2012-09-21 | 2014-03-27 | Msp Corporation | Particle sampling and measurement in the ambient air |
| CN104458352A (en) * | 2014-12-22 | 2015-03-25 | 天津水泥工业设计研究院有限公司 | Large-flow sampling device for industrial flue gas particulate matters |
| CN107421787A (en) * | 2017-08-31 | 2017-12-01 | 北京市环境保护监测中心 | The sampling apparatus and assay method of total particulate in waste gas |
| CN206960173U (en) * | 2017-07-10 | 2018-02-02 | 宜昌宜陵环境检测有限公司 | A kind of airborne particulate harvester |
| CN207366279U (en) * | 2017-10-27 | 2018-05-15 | 青岛众瑞智能仪器有限公司 | A kind of high humidity low-concentration smoke sampling rifle with honeycomb fashion heating unit |
| CN108369176A (en) * | 2015-10-26 | 2018-08-03 | 德卡提公司 | Method and apparatus for the particulate for measuring exhaust gas |
| CN208297205U (en) * | 2018-05-24 | 2018-12-28 | 泉州市安科职业卫生技术服务有限公司 | The dust sampling device of the synchronous dust acquisition of different height |
-
2019
- 2019-06-18 CN CN201910526819.4A patent/CN110132662A/en not_active Withdrawn
-
2020
- 2020-06-02 CN CN202010487218.XA patent/CN111397978A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4442699A (en) * | 1980-02-25 | 1984-04-17 | Centre De Recherches Metallurgiques-Centrum Voor Research In De Metallurgie | Monitoring the dust content of gaseous fluid |
| CN1108764A (en) * | 1993-09-09 | 1995-09-20 | 日本钢管株式会社 | Apparatus for automatically measuring dust concentration in flue gas |
| US20020020232A1 (en) * | 2000-08-09 | 2002-02-21 | Horiba, Ltd. | Exhaust gas sampling device |
| US20040139785A1 (en) * | 2002-11-18 | 2004-07-22 | Abdul-Khalek Imad Said | Apparatus and method for real-time measurement of mass, size and number of solid particles of particulate matter in engine exhaust |
| US20100242463A1 (en) * | 2009-03-31 | 2010-09-30 | Ibiden Co., Ltd. | Particulate matter concentration measuring apparatus |
| US20140083167A1 (en) * | 2012-09-21 | 2014-03-27 | Msp Corporation | Particle sampling and measurement in the ambient air |
| CN203365264U (en) * | 2013-04-08 | 2013-12-25 | 江西怡杉环保有限公司 | Sampling and weighing device for online monitoring of concentrations of atmospheric particulate matters with gravimetric method |
| CN104458352A (en) * | 2014-12-22 | 2015-03-25 | 天津水泥工业设计研究院有限公司 | Large-flow sampling device for industrial flue gas particulate matters |
| CN108369176A (en) * | 2015-10-26 | 2018-08-03 | 德卡提公司 | Method and apparatus for the particulate for measuring exhaust gas |
| CN206960173U (en) * | 2017-07-10 | 2018-02-02 | 宜昌宜陵环境检测有限公司 | A kind of airborne particulate harvester |
| CN107421787A (en) * | 2017-08-31 | 2017-12-01 | 北京市环境保护监测中心 | The sampling apparatus and assay method of total particulate in waste gas |
| CN207366279U (en) * | 2017-10-27 | 2018-05-15 | 青岛众瑞智能仪器有限公司 | A kind of high humidity low-concentration smoke sampling rifle with honeycomb fashion heating unit |
| CN208297205U (en) * | 2018-05-24 | 2018-12-28 | 泉州市安科职业卫生技术服务有限公司 | The dust sampling device of the synchronous dust acquisition of different height |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110132662A (en) | 2019-08-16 |
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Application publication date: 20200710 |
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