CN112763275A - Carbon film containing device for sampling particulate matters - Google Patents
Carbon film containing device for sampling particulate matters Download PDFInfo
- Publication number
- CN112763275A CN112763275A CN202011138968.2A CN202011138968A CN112763275A CN 112763275 A CN112763275 A CN 112763275A CN 202011138968 A CN202011138968 A CN 202011138968A CN 112763275 A CN112763275 A CN 112763275A
- Authority
- CN
- China
- Prior art keywords
- carbon film
- film containing
- cylindrical
- tail gas
- circular groove
- 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.)
- Pending
Links
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
- G01N1/2247—Sampling from a flowing stream of gas
- G01N1/2252—Sampling from a flowing stream of gas in a vehicle exhaust
Abstract
The specification discloses a carbon film containing device for sampling particulate matters, which comprises a shell, a tail gas channel, a heating channel, a cylindrical switching part, a heater, a thermocouple, a temperature controller, a first gasket, a carbon film containing piece, a carbon film pressing plate, a switching piece and a second gasket, wherein the tail gas channel and the heating channel are arranged in the shell, the heater is arranged in the heating channel, the cylindrical switching part is arranged at the tail part of the shell, and the first gasket is arranged at the interface of the cylindrical switching part; the carbon film holds the piece and is cylindricly, is provided with recess, screw hole and passageway, and the carbon film clamp plate is fixed in the carbon film through the screw hole and holds on the piece, and the adaptor is used for connecting external pipeline. Maintain the tail gas temperature through heating the passageway, hold the piece through the carbon film and hold and fix the carbon film, realized the direct collection to the tail gas particulate matter, installation, dismantlement convenient to use shorten sampling time, effectively improve sampling efficiency, have the progressive.
Description
Technical Field
The invention relates to the technical field of tail gas treatment, in particular to a carbon film containing device for sampling particulate matters.
Background
Particulate matter is a major concern in the field of environmental protection. The composition of the particulate matter has a significant impact on the environment and human health. The chemical and physical properties of the particles affect the evolution and persistence processes of the particles in the atmosphere, and meanwhile, how to reduce the particles can be guided by knowing the chemical and physical properties of the particles. The carbon film is mainly used for micro-morphology analysis of particles. The tail gas of the engine contains a large amount of water vapor, the tail gas is easy to condense when being cooled to influence the sampling process when being directly collected, and the tail gas is usually diluted and then subjected to particulate matter collection in the prior art, but more time is spent; the fixing and placement of the carbon film also affects the sampling effect.
In order to shorten the sampling time and improve the sampling effect, a sampling device capable of directly collecting tail gas particulate matters is researched, and the problem to be solved urgently is solved.
Disclosure of Invention
The present description provides a carbon film holds device for particulate matter sampling to overcome at least one technical problem that exists among the prior art.
According to an embodiment of the specification, a carbon film containing device for sampling particulate matters is provided, and comprises a shell, a tail gas channel, a heating channel, a cylindrical switching part, a heater, a thermocouple, a temperature controller, a first gasket, a carbon film containing part, a carbon film pressing plate, a switching part and a second gasket, wherein the tail gas channel and the heating channel arranged around the tail gas channel are arranged in the shell, the heater is arranged in the heating channel, the cylindrical switching part is arranged at an outlet of the tail gas channel of the shell, the first gasket is arranged at an interface of the cylindrical switching part, the thermocouple is arranged at the outlet of the tail gas channel, and the temperature controller is in signal connection with the thermocouple and the heater; the carbon film containing piece is cylindrical, a circular groove is formed in the center of the bottom surface of one side of the carbon film containing piece, a carbon film for sampling is placed in the circular groove, two opposite sides of the periphery of the circular groove are respectively provided with a threaded hole, channels are arranged on the other two opposite sides of the periphery of the circular groove, the sum of the sectional areas of the channels is not less than one fourth of the area of the bottom surface of the carbon film containing piece, and one end, provided with the circular groove, of the carbon film containing piece is detachably connected with the cylindrical switching part; the carbon film pressing plate is provided with a center hole in the center in advance, the carbon film pressing plate is fixed on the bottom surface of one side of the carbon film containing part through the threaded hole, and the diameter of the center hole is smaller than that of the carbon film for sampling; the adapter is of a hollow cylindrical shell structure, the front side of the shell is a first cylindrical surface, the rear side of the shell is a second cylindrical surface, the first cylindrical surface is integrally connected with the second cylindrical surface, the first cylindrical surface of the adapter is connected with one side, without a circular groove, of the carbon film containing part in a detachable mode, and the second gasket is arranged at the joint of the first cylindrical surface of the adapter and the carbon film containing part.
Optionally, the exhaust gas channel is a straight line channel, and the gas outlet temperature of the exhaust gas channel is between 40 ℃ and 60 ℃.
Optionally, the depth of the circular groove is between 0.2-0.3 mm.
Optionally, the inner side of the cylindrical adapting part is provided with a thread, the outer side of one end of the carbon film containing piece, which is provided with the circular groove, is provided with a thread, and the cylindrical adapting part is connected with the carbon film containing piece through the thread.
Optionally, the outer side of one end, without the circular groove, of the carbon film containing part is provided with a thread, the inner side of the first cylindrical surface of the adapter part is provided with a thread, and the carbon film containing part is connected with the adapter part through the thread.
Optionally, the heater is a heating tube, and the heating tube is inserted into the heating channel.
The beneficial effects of the embodiment of the specification are as follows:
the embodiment of the specification provides a carbon film containing device for sampling particulate matters, which is provided with a heating channel to maintain the temperature of a tail gas channel and prevent tail gas from condensing; the carbon film containing piece is arranged to support and fix the carbon film, the flow speed around the carbon film is reduced in the sampling process by designing the structure of the carbon film containing piece, the particles impact the carbon film by utilizing the inertia of the particles to realize collection, the carbon film is not easy to blow, the carbon film is placed stably and is easy to separate and replace, and the microstructure analysis of the particles is facilitated; hold the cooperation of piece through heating channel and carbon film, realized the direct collection to the tail gas particulate matter, and can dismantle the connection between each part of device, the convenient to use installation shortens the sampling time greatly, effectively improves sampling efficiency, has apparent progressive nature.
The innovation points of the embodiment of the specification comprise:
1. through the cooperation that heating channel and carbon film held the piece, met the problem of condensation knot among the prior art in the tail gas collection process, can directly sample tail gas, shorten sampling time, be one of the innovation point of this description embodiment.
2. The carbon film containing piece is cylindrical, a circular groove is formed in the center of the bottom face of one side of the carbon film containing piece, a carbon film used for sampling is placed in the circular groove, two opposite sides around the circular groove are respectively provided with a threaded hole, arc-shaped channels are formed in the other two opposite sides around the circular groove, when tail gas airflow reaches the carbon film containing piece, the gas flow velocity around the groove area is reduced, particles in the tail gas impact on the carbon film due to inertia, the carbon film is not prone to being blown broken due to the reduction of the flow velocity, the sampling effect is guaranteed, the accuracy of follow-up off-line analysis is improved, and the carbon film containing piece is one of innovation points of the embodiment of the specification.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a carbon film containing device for sampling particulate matters provided in an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a heating section of a carbon film containing device for sampling particulate matters provided by an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a carbon film holding member of a carbon film holding device for sampling particulate matters provided in an embodiment of the present disclosure, fig. 3a is a front view of the carbon film holding member, fig. 3b is a top view of the carbon film holding member, and fig. 3c is a side sectional view of the carbon film holding member;
fig. 4 is a schematic structural diagram of an adapter of a carbon film containing device for sampling particulate matters provided in an embodiment of the present disclosure, fig. 4a is a front view of the adapter, and fig. 4b is a front cross-sectional view of the adapter;
in FIGS. 1-4, 1-case, 2-exhaust gas channel, 3-heating channel, 4-cylindrical adaptor portion, 5-heater, 6-thermocouple, 7-temperature controller, 8-first spacer, 9-carbon film rice-holding piece, 10-carbon film pressing plate, 11-adaptor, 12-second spacer, 13-circular groove, 14-threaded hole, 15-channel.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that the terms "including" and "having" and any variations thereof in the embodiments of the present specification and the drawings are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
In the prior art, a small amount of particulate matters are obtained by mainly utilizing a special thin film, such as a TEM (transmission electron microscope) grid-supported film, for microscopic feature analysis of the particulate matters. Most sampling works usually dilute the combustion exhaust gas containing the particulate matters by several times to prevent the condensation of water vapor, and the method consumes a lot of time, and if the sampling of the particulate matters can be directly carried out, a lot of time can be saved.
In the embodiment of the specification, the heating section is arranged to maintain the temperature of the tail gas, so that the water vapor in the tail gas is prevented from being condensed to influence the sampling effect, and the time consumed by diluting the tail gas is saved. In addition, the carbon film containing device provided by the embodiment of the specification is convenient for placing, fixing, separating and replacing the carbon film for microscopic characteristic analysis, and can be used for sampling particles through the matching of the carbon film containing device and the heating section, so that the tail gas particles can be directly sampled and analyzed, the whole sampling time is saved, the sampling effect is improved, the device is beneficial to the microscopic characteristic analysis research of the particles, and the contribution is made to the environmental protection research.
The embodiment of the specification discloses a carbon film holds device for particulate matter sampling, and the following detailed description is provided.
Fig. 1 is a schematic structural diagram of a carbon film containing device for sampling particulate matters provided in an embodiment of the present disclosure. As shown in fig. 1, a carbon film containing device for sampling particulate matter is provided, which includes a housing 1, a tail gas channel 2, a heating channel 3, a cylindrical switching part 4, a heater 5, a thermocouple 6, a temperature controller 7, a first gasket 8, a carbon film containing part 9, a carbon film pressing plate 10, a switching part 11, and a second gasket 12, wherein the tail gas channel 2 and the heating channel 3 arranged around the tail gas channel 2 are arranged in the housing 1, the heater 5 is arranged in the heating channel 3, the housing 1 is provided with the cylindrical switching part 4 at an outlet of the tail gas channel 2, the first gasket 8 is arranged at an interface of the cylindrical switching part 4, the thermocouple 6 is arranged at the outlet of the tail gas channel 2, and the temperature controller 7 is in signal connection with the thermocouple 6 and the heater 5.
The heating channel 3, the heater 5, the thermocouple 6 and the temperature controller 7 in the shell 1 control and maintain the temperature of the tail gas channel 2, and the detailed structure is shown in fig. 2.
Fig. 2 is a schematic structural diagram of a heating section of a carbon film containing device for sampling particulate matters provided in an embodiment of the present disclosure. As shown in fig. 2, the exhaust gas channel 2 and the heating channel 3 disposed around the exhaust gas channel are disposed in the casing 1, a heater 5 is disposed in the heating channel 3, and the temperature of the exhaust gas channel 2 is increased by the heating channel 3.
The housing 1 is provided with a cylindrical adapter portion 4 at the outlet of the off-gas channel 2, the cylindrical adapter portion 4 being adapted to be connected to a membrane containing member. The first gasket 8 is arranged at the interface of the cylindrical switching part 4, and the first gasket 8 is used for sealing the interface and ensuring the sampling effect of the sampling membrane.
The thermocouple 6 is installed through punching the exit of tail gas passageway 2, and thermocouple 6 is used for obtaining the temperature of the tail gas of being surveyed, with temperature controller signal connection to the realization is to the control of tail gas temperature, can adjust gaseous temperature according to the sampling result, with optimization sampling effect. The temperature controller 7 is in signal connection with the thermocouple 6 and the heater 5.
Tail gas gets into from tail gas passageway 2's air inlet sampling device, the temperature of tail gas passageway maintains at preset temperature value, and tail gas flows through the carbon film, and the temperature can not descend fast, avoids meeting the condensation knot to can realize direct sampling, shorten sampling time, and obtain good sampling effect.
In one implementation, the exhaust gas channel is a straight line channel, and the gas outlet temperature of the exhaust gas channel is between 40 ℃ and 60 ℃. The temperature setting varies with the conditions of the sampling process, typically resulting in an outlet gas temperature of between 40 and 60 ℃. For a combustion with an equivalence ratio of 1, the volume ratio of water vapor in the gas after the completion of the combustion is about 7.5%, and the gas temperature at the outlet of the off-gas channel 2 is about 41 ℃ in order to prevent the condensation of water vapor.
In one implementation, the heater 5 is a heating pipe, and the heating pipe is inserted into the heating channel to heat the exhaust channel.
The detailed structure of the carbon film holding member 9 of the holding device is shown in fig. 3.
Fig. 3 is a schematic structural diagram of a carbon film holding member of a carbon film holding device for sampling particulate matters provided in an embodiment of the present disclosure, fig. 3a is a front view of the carbon film holding member, fig. 3b is a top view of the carbon film holding member, and fig. 3c is a side sectional view of the carbon film holding member. As shown in fig. 3a, 3b and 3c, the carbon film holding member 9 is cylindrical, a circular groove 13 is formed in the center of the bottom surface of one side of the carbon film holding member 9, a carbon film for sampling is placed in the circular groove 13, the diameter of the circular groove 13 is slightly larger than that of the TEM carbon film, two opposite sides of the periphery of the circular groove 13 are respectively provided with a threaded hole 14 for fixing the TEM film pressing plate, the other opposite sides of the periphery of the circular groove 13 are provided with channels 15, and the channels 15 on the two sides are used for air flow to pass through. The sum of the sectional areas of the channels 15 is not less than one fourth of the bottom surface area of the carbon film holding piece, the flow rate change of gas flowing through the carbon film holding area is influenced by the proportion of the sectional areas of the channels to the bottom surface area, and in order to achieve a better sampling effect, the flow rate of the gas needs to be slowed down, so that the sampling is facilitated, and the study on the microscopic characteristics of particles is facilitated.
One end of the carbon film holding member 9 having the circular groove 13 is detachably connected to the cylindrical adapting portion 4, and the exhaust gas flow reaches the side of the carbon film holding member having the circular groove 13 first, and is sampled by the TEM carbon film, and flows to the rear end of the apparatus through the passage 15.
In one implementation, the depth of the circular groove 13 is between 0.2 and 0.3 mm, preferably 0.25 mm.
The carbon film pressing plate 10 is provided with a center hole in the center of the carbon film pressing plate 10, the carbon film pressing plate is fixed on the bottom surface of one side of the carbon film containing part 9 through the threaded hole 14, and the diameter of the center hole is smaller than that of the carbon film for sampling;
the detailed structure of the adapter piece 11 of the containing device is shown in figure 4.
Fig. 4 is a schematic structural diagram of an adapter of a carbon film containing device for sampling particulate matters provided in an embodiment of the present disclosure, fig. 4a is a front view of the adapter, and fig. 4b is a front cross-sectional view of the adapter. As shown in fig. 4a and 4b, the adapter 11 is a hollow cylindrical shell structure, the front side of the shell is a first cylindrical surface, the rear side of the shell is a second cylindrical surface, the first cylindrical surface and the second cylindrical surface are integrally connected, the first cylindrical surface of the adapter is detachably connected with one side of the carbon film containing member 9 without the circular groove 13, and the second gasket 12 is arranged at the interface between the first cylindrical surface of the adapter 11 and the carbon film containing member 9. The second gasket 12 is used to seal the interface against the ingress of impurities into the device that interfere with sampling.
In one implementation, the cylindrical adapter portion 4 is threaded on the inside, the carbon film container 9 is threaded on the outside of the circular groove, and the cylindrical adapter portion 4 is screwed to the carbon film container 9.
In one implementation mode, a thread is processed on the outer side of one end, without a circular groove, of the carbon film containing part 9, a thread is processed on the inner side of the first cylindrical surface of the adapter part 11, and the carbon film containing part 9 is connected with the adapter part 11 through the thread.
In conclusion, a carbon film holds device for particulate matter sampling is provided, the carbon film holds device maintains the tail gas temperature through heating channel, holds the piece through the carbon film and holds and fix the carbon film, and two parts cooperation is used, has realized the direct collection to the tail gas particulate matter, and installation, dismantlement convenient to use shorten the sampling time greatly, effectively improve sampling efficiency, have the progressive.
Those of ordinary skill in the art will understand that: the figures are merely schematic representations of one embodiment, and the blocks or flow diagrams in the figures are not necessarily required to practice the present invention.
Those of ordinary skill in the art will understand that: modules in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be located in one or more devices different from the embodiments with corresponding changes. The modules of the above embodiments may be combined into one module, or further split into multiple sub-modules.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The carbon film containing device for sampling particulate matters is characterized by comprising a shell, a tail gas channel, a heating channel, a cylindrical switching part, a heater, a thermocouple, a temperature controller, a first gasket, a carbon film containing piece, a carbon film pressing plate, a switching piece and a second gasket, wherein the carbon film containing piece, the carbon film pressing plate, the switching piece and the second gasket are arranged on the shell
The tail gas passage and the heating passage arranged around the tail gas passage are arranged in the shell, the heater is arranged in the heating passage, the shell is provided with a cylindrical switching part at the outlet of the tail gas passage, the first gasket is arranged at the interface of the cylindrical switching part, the thermocouple is arranged at the outlet of the tail gas passage, and the temperature controller is in signal connection with the thermocouple and the heater;
the carbon film containing piece is cylindrical, a circular groove is formed in the center of the bottom surface of one side of the carbon film containing piece, a carbon film for sampling is placed in the circular groove, two opposite sides of the periphery of the circular groove are respectively provided with a threaded hole, channels are arranged on the other two opposite sides of the periphery of the circular groove, the sum of the sectional areas of the channels is not less than one fourth of the area of the bottom surface of the carbon film containing piece, and one end, provided with the circular groove, of the carbon film containing piece is detachably connected with the cylindrical switching part;
the carbon film pressing plate is provided with a center hole in the center in advance, the carbon film pressing plate is fixed on the bottom surface of one side of the carbon film containing part through the threaded hole, and the diameter of the center hole is smaller than that of the carbon film for sampling;
the adapter is of a hollow cylindrical shell structure, the front side of the shell is a first cylindrical surface, the rear side of the shell is a second cylindrical surface, the first cylindrical surface is integrally connected with the second cylindrical surface, the first cylindrical surface of the adapter is connected with one side, without a circular groove, of the carbon film containing part in a detachable mode, and the second gasket is arranged at the joint of the first cylindrical surface of the adapter and the carbon film containing part.
2. The apparatus of claim 1, wherein the exhaust channel is a straight channel and the gas outlet temperature of the exhaust channel is between 40 ℃ and 60 ℃.
3. The device of claims 1-2, wherein the depth of the circular groove is between 0.2-0.3 mm.
4. The apparatus according to claims 1 to 3, wherein the cylindrical adapter portion is threaded on the inside, and the carbon film holding member is threaded on the outside at the end having the circular groove, and the cylindrical adapter portion is screwed with the carbon film holding member.
5. The device of claims 1-4, wherein the carbon film holding member is threaded on the outer side of the end without the circular groove, the adapter member is threaded on the inner side of the first cylindrical surface, and the carbon film holding member is connected with the adapter member through threads.
6. The apparatus of claims 1-5, wherein the heater is a heating tube, the heating tube being inserted into the heating channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011138968.2A CN112763275A (en) | 2020-10-22 | 2020-10-22 | Carbon film containing device for sampling particulate matters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011138968.2A CN112763275A (en) | 2020-10-22 | 2020-10-22 | Carbon film containing device for sampling particulate matters |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112763275A true CN112763275A (en) | 2021-05-07 |
Family
ID=75693261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011138968.2A Pending CN112763275A (en) | 2020-10-22 | 2020-10-22 | Carbon film containing device for sampling particulate matters |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112763275A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201707238U (en) * | 2010-02-02 | 2011-01-12 | 武汉市天虹仪表有限责任公司 | Smoke tube applicable to low-concentration smoke sampling |
| CN102279120A (en) * | 2011-06-27 | 2011-12-14 | 中国科学院广州能源研究所 | Device and method for gas sampling of pressurized fluidized bed |
| CN103245535A (en) * | 2012-02-14 | 2013-08-14 | 株式会社堀场制作所 | Exhaust gas sampling device |
| CN206671002U (en) * | 2017-04-19 | 2017-11-24 | 青岛众瑞智能仪器有限公司 | A kind of low-concentration smoke sampling rifle with microwave heating equipment |
| CN107635664A (en) * | 2015-03-19 | 2018-01-26 | 国际商业机器公司 | Microfluidic device with moisture-resistant, exhaust gas region |
| CN207133090U (en) * | 2017-03-23 | 2018-03-23 | 北京英普瑞环保设备有限公司 | Automatic change film filter membrane clip |
| CN109855924A (en) * | 2019-03-04 | 2019-06-07 | 上海交通大学 | The on-line detecting system of harsh environment aerosol |
| CN210247130U (en) * | 2019-05-27 | 2020-04-03 | 四川玖谊源粒子科技有限公司 | Carbon film connection structure of accelerator |
| CN111238884A (en) * | 2020-01-21 | 2020-06-05 | 力合科技（湖南）股份有限公司 | Filter membrane fixed knot constructs, sample stove and OCEC analysis appearance |
| CN211148200U (en) * | 2019-12-05 | 2020-07-31 | 深圳市云顶自动化技术有限公司 | Filtering structure for side air inlet of smoke humidity instrument probe |
| CN211717892U (en) * | 2019-12-30 | 2020-10-20 | 武汉汉海鑫宇环境检测技术服务有限公司 | Low-concentration smoke heating sampling pipe |
| CN213022755U (en) * | 2020-07-30 | 2021-04-20 | 中国船舶重工集团公司第七一八研究所 | Aerosol detection device for high-temperature, high-pressure and high-humidity environment |
-
2020
- 2020-10-22 CN CN202011138968.2A patent/CN112763275A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201707238U (en) * | 2010-02-02 | 2011-01-12 | 武汉市天虹仪表有限责任公司 | Smoke tube applicable to low-concentration smoke sampling |
| CN102279120A (en) * | 2011-06-27 | 2011-12-14 | 中国科学院广州能源研究所 | Device and method for gas sampling of pressurized fluidized bed |
| CN103245535A (en) * | 2012-02-14 | 2013-08-14 | 株式会社堀场制作所 | Exhaust gas sampling device |
| CN107635664A (en) * | 2015-03-19 | 2018-01-26 | 国际商业机器公司 | Microfluidic device with moisture-resistant, exhaust gas region |
| CN207133090U (en) * | 2017-03-23 | 2018-03-23 | 北京英普瑞环保设备有限公司 | Automatic change film filter membrane clip |
| CN206671002U (en) * | 2017-04-19 | 2017-11-24 | 青岛众瑞智能仪器有限公司 | A kind of low-concentration smoke sampling rifle with microwave heating equipment |
| CN109855924A (en) * | 2019-03-04 | 2019-06-07 | 上海交通大学 | The on-line detecting system of harsh environment aerosol |
| CN210247130U (en) * | 2019-05-27 | 2020-04-03 | 四川玖谊源粒子科技有限公司 | Carbon film connection structure of accelerator |
| CN211148200U (en) * | 2019-12-05 | 2020-07-31 | 深圳市云顶自动化技术有限公司 | Filtering structure for side air inlet of smoke humidity instrument probe |
| CN211717892U (en) * | 2019-12-30 | 2020-10-20 | 武汉汉海鑫宇环境检测技术服务有限公司 | Low-concentration smoke heating sampling pipe |
| CN111238884A (en) * | 2020-01-21 | 2020-06-05 | 力合科技（湖南）股份有限公司 | Filter membrane fixed knot constructs, sample stove and OCEC analysis appearance |
| CN213022755U (en) * | 2020-07-30 | 2021-04-20 | 中国船舶重工集团公司第七一八研究所 | Aerosol detection device for high-temperature, high-pressure and high-humidity environment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8241412B2 (en) | Filter inspection with a gas mixing apparatus | |
| KR101654178B1 (en) | Pretreatment apparatus and method for analysing air polution detection | |
| CN105339774A (en) | Sample conditioning system for low pressure gas | |
| CN109752224B (en) | Concentrating device and pneumatic focusing system | |
| CN112595562B (en) | Mass spectrum homothermal in-situ sampling interface capable of being flexibly arranged and mass spectrum homothermal in-situ sampling method | |
| CN101380541B (en) | Aerosol drying equipment | |
| RU2008143115A (en) | IZO-KINETIC PROBE FOR ANALYSIS OF POLLUTION OF GASES GENERATED BY THE AIRCRAFT ENGINE | |
| KR101915380B1 (en) | Frost Exhaust Device of A Pretreatment Apparatus For Analysing Air Polution Detection | |
| CN112763275A (en) | Carbon film containing device for sampling particulate matters | |
| US20240102980A1 (en) | Compact dehydration and trap module | |
| CN204028046U (en) | Film Concentration Sampling device | |
| CN101839878A (en) | Method and device for analyzing trace gaseous impurities in high-purity gas (or electron gas) | |
| CN214251707U (en) | Carbon film containing device for copper net for particles of internal combustion engine | |
| CN203337628U (en) | Deoxidation catalyst detection device | |
| CN112763276A (en) | Particulate matter sampling device | |
| CN201596427U (en) | High-temperature resistant filter film particle catcher | |
| KR102342454B1 (en) | Gas sensor probe for measuring dissolved gas of transformer | |
| CN203287227U (en) | Multipath automatic control air sampler | |
| JP2588115Y2 (en) | Sampling device | |
| CN214251706U (en) | Internal combustion engine particulate matter sampling device | |
| CN218298146U (en) | Chromatograph | |
| CN107328617B (en) | High-temperature-resistant particulate matter collecting device based on cutting ferrule sealing mode | |
| CN103776805B (en) | Constant temperature steam generation sampling system | |
| CN208921668U (en) | A kind of VOCs monitoring device based on gas chromatograph | |
| EP3906400B1 (en) | Sampling arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210507 |
|
| RJ01 | Rejection of invention patent application after publication |