CN213121284U - Multifunctional flue gas moisture content and particulate matter sampling gun with replaceable sampling head - Google Patents
Multifunctional flue gas moisture content and particulate matter sampling gun with replaceable sampling head Download PDFInfo
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- CN213121284U CN213121284U CN202020995421.3U CN202020995421U CN213121284U CN 213121284 U CN213121284 U CN 213121284U CN 202020995421 U CN202020995421 U CN 202020995421U CN 213121284 U CN213121284 U CN 213121284U
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Abstract
The utility model relates to a sampling gun, in particular to a multifunctional flue gas moisture content and particulate matter sampling gun with a replaceable sampling head, which comprises a handle, a sampling gun barrel, a particulate matter filter barrel groove and at least two sampling heads, wherein the handle, the sampling gun barrel, the particulate matter filter barrel groove and the sampling heads are connected in sequence and are communicated with each other; the sampling head comprises a particulate matter sampling gun head and a moisture content filtering gun head, and the particulate matter sampling gun head and the moisture content filtering gun head are detachably connected with the sampling gun barrel through a particulate matter filter barrel groove; the sampling heads with different functions can be conveniently switched, and the experimental requirements are met; a temperature sensing wire interface, a pitot tube pressure measuring interface and a moisture content testing interface are integrally arranged on the handle; first opening and second opening have been seted up on the shaft part that is close to the handle to the sampling gun pipe, and a moisture content flourishing water container is connected to first opening, and the particulate matter collection container of taking the sampling interface is connected to the second opening, and moisture content test interface and particulate matter collection container's sampling interface all seals through the sealing plug.
Description
Technical Field
The utility model relates to a sampling gun specifically indicates a multi-functional flue gas moisture content, particulate matter sampling gun of removable sampling head.
Background
The particulate matter is a conventional pollutant in fixed source waste gas, the monitoring requirement is extremely wide, the moisture content of the waste gas is a necessary parameter for calculating the standard dry flow of the waste gas, and the particulate matter is a necessary parameter for sampling the particulate matter, participates in the calculation of the particulate matter emission rate; present sampling of each monitoring instrument particulate matter, all carry out the measurement of moisture content with using moisture content measuring gun earlier, reuse particulate matter sampling gun to carry out the collection of sample, because fixed source waste gas sampling generally need climb, and the sampling platform space is narrow and small, moisture content is as the must survey parameter of particulate matter sampling, need carry a special moisture content measuring gun that is used for alone, change the sampling gun that is used for gathering the particulate matter specially again after measuring the moisture content and carry out sample acquisition, switch back and forth in many equipment of needs in the monitoring process, complex operation, and carry inconveniently, it is also very inconvenient to operate on the narrow and small sampling platform in space.
Disclosure of Invention
In order to solve the problem, the utility model aims at disclosing a sampling gun, specifically indicate a multi-functional flue gas moisture content, particulate matter sampling gun of removable sampling head.
In order to achieve the above object, the utility model adopts the following technical scheme: a multifunctional flue gas moisture content and particulate matter sampling gun with a replaceable sampling head comprises a handle, a sampling gun barrel, a particulate matter filter barrel groove and at least two sampling heads, wherein the handle, the sampling gun barrel, the particulate matter filter barrel groove and the sampling heads are sequentially connected and mutually communicated; the sampling head comprises a particulate matter sampling gun head and a moisture content filtering gun head, and the particulate matter sampling gun head and the moisture content filtering gun head are detachably connected with the sampling gun barrel through a particulate matter filter barrel groove; a temperature sensing wire interface, a pitot tube pressure measuring interface and a moisture content testing interface are integrally arranged on the handle; first opening and second opening have been seted up on the shaft part that is close to the handle to the sampling gun barrel, moisture content water container is connected to first opening, and the particulate matter collection container of taking the sampling interface is connected to the second opening to moisture content test interface and particulate matter collection container's sampling interface all seals through the sealing plug.
Preferably, the particle sampling rifle head includes sampling return bend and connecting seat I, and the front end mouth of pipe of sampling return bend is the particle entry end, and its rear end mouth of pipe is the link up structure with I integrated into one piece of connecting seat, and the sampling return bend is strained a groove intercommunication through connecting seat I and particle.
Preferably, the moisture content filtering gun head comprises a filter tip and a connecting seat II, a pipe orifice at the front end of the filter tip is a water vapor inlet end, the rear end of the filter tip and the connecting seat II are integrally formed into a through structure, and the filter tip is communicated with the particulate matter filter cylinder groove through the connecting seat II.
Preferably, the particle filter cylinder groove is of a diameter-variable circular tube structure and comprises a large-diameter end and a small-diameter end, wherein the small-diameter end is in threaded connection with the sampling gun barrel, and the large-diameter end is in threaded connection with the particle sampling gun head or the moisture-content filtering gun head.
Preferably, the sampling gun further comprises a filter cartridge mountable within the particulate filter cartridge sump.
A multifunctional flue gas moisture content and particulate matter sampling gun with a replaceable sampling head comprises a handle, a sampling gun barrel, a connecting component and at least two sampling heads, wherein the handle, the sampling gun barrel, the connecting component and the sampling heads are sequentially connected and communicated with one another; the sampling head comprises a particulate matter sampling gun head and a moisture content filtering gun head; the particle sampling gun head and the moisture content filtering gun head are detachably connected with the sampling gun barrel through a connecting component; a temperature sensing wire interface, a pitot tube pressure measuring interface and a moisture content testing interface are integrally arranged on the handle; the sampling gun barrel is provided with a first opening and a second opening on a shaft section close to the handle, the first opening is connected with a moisture content water container, and the second opening is connected with a particulate matter collecting container with a sampling interface;
a particle sampling pipe and a moisture content sampling pipe are arranged in the sampling gun pipe, wherein the particle sampling gun head is connected with a particle collection container through the particle sampling pipe to form a particle sampling channel; the moisture content filtering gun head is connected with the moisture content water container and the moisture content testing interface through the moisture content sampling pipe to form a moisture content sampling channel.
Preferably, the particle sampling rifle head includes sampling return bend and connecting seat I, and the front end mouth of pipe of sampling return bend is the particle entry end, and its rear end mouth of pipe is the link up structure with I integrated into one piece of connecting seat, and the sampling return bend setting is at the eccentric position of connecting seat I, corresponding with the particle sampling pipe, and the rear end mouth of pipe of sampling return bend outwards extends and forms the pipe column structure to cup joint in the particle sampling pipe, the particle sampling rifle head passes through connecting seat I and is connected with the connecting component is detachable.
Preferably, the moisture content filtering gun head comprises a filter tip and a connecting seat II, the front end of the filter tip is a water vapor inlet end, the rear end of the filter tip and the connecting seat II are integrally formed into a through structure, the filter tip is arranged at the eccentric position of the connecting seat II and corresponds to the moisture content sampling pipe, the rear end of the filter tip extends outwards to form a circular tubular structure so as to be sleeved in the moisture content sampling pipe, and the moisture content filtering gun head is detachably connected with the connecting component through the connecting seat II.
Preferably, the connecting member is a reducing circular tube structure and comprises a large-diameter end and a small-diameter end, wherein the small-diameter end is in threaded connection with the sampling gun barrel, and the large-diameter end is detachably connected with the particulate sampling gun head or the moisture-content filtering gun head in a buckling mode.
Preferably, the particle sampling pipe is provided with a filter cartridge positioning groove at the position close to the pipe orifice at one side of the sampling head.
The beneficial effects of the utility model are embodied in:
1. the particle sampling gun head and the moisture content filtering gun head are detachably connected with the sampling gun barrel through the particle filter barrel groove, so that sampling heads with different functions can be conveniently switched, and the experiment requirements are met; when the moisture content test is required, connecting the moisture content filtering gun head with the particulate matter filter cylinder groove, plugging a sampling interface of the particulate matter collecting container by using a sealing plug, connecting the moisture content filtering gun head with the moisture content test interface to form a unique gas path, and adding clear water into the moisture content water container to measure the moisture content as required; when the particulate matter is required to be sampled, the filter cylinder is arranged in the particulate matter filter cylinder groove, the particulate matter sampling gun head is connected with the particulate matter filter cylinder groove, the moisture content testing interface is plugged by the sealing plug, the particulate matter sampling gun head forms a unique air path to the particulate matter collecting container, and the particulate matter sample can be collected as required.
2. The particle sampling gun head and the moisture content filtering gun head are detachably connected with the sampling gun barrel through the connecting component, so that sampling heads with different functions can be conveniently switched, and the experiment requirements are met; a particle sampling pipe and a moisture content sampling pipe are arranged in the sampling gun pipe, when moisture content testing is required, the moisture content filtering gun head is connected with the connecting component, the moisture content filtering gun head is connected with the moisture content water container and the moisture content testing interface through the moisture content sampling pipe to form a moisture content sampling channel, and clear water is added into the moisture content water container to measure the moisture content as required; when the particulate matter sampling is needed, the particulate matter sampling gun head is connected with the connecting component, the particulate matter sampling gun head is connected with the particulate matter collecting container through the particulate matter sampling pipe to form a particulate matter sampling channel, and the particulate matter sample can be collected according to requirements; the particulate matter sampling pipe and the moisture content sampling pipe are two independent sampling channels, which do not interfere with each other, and the accuracy of the measured data is improved.
Drawings
Fig. 1 is the utility model discloses embodiment 1 sampling gun's schematic structure.
Fig. 2 is a schematic structural diagram of a sampling head according to embodiment 1 of the present invention.
Fig. 3 is the utility model discloses embodiment 2 sampling gun's schematic structure.
Fig. 4 is a schematic structural diagram of a sampling head according to embodiment 2 of the present invention.
Reference is made to the accompanying drawings in which:
the device comprises a handle 1, a sampling gun barrel 2, a particulate matter filter barrel groove 3, a particulate matter sampling gun head 4, a moisture content filter gun head 5, a particulate matter collecting container 6, a moisture content water container 7, a temperature sensing line interface 8, a pitot tube pressure measuring interface 9, a moisture content testing interface 10, a sealing plug 11, a sampling bent pipe 12, a connecting seat I, a filter tip 14, a connecting seat II, a connecting seat 16, a particulate matter sampling pipe 17, a moisture content sampling pipe 18, a connecting component 19, a filter barrel positioning groove 19 and an annular boss 20.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings:
example 1
The utility model provides a multifunctional flue gas moisture content and particulate matter sampling gun with a replaceable sampling head, which comprises a handle 1, a sampling gun barrel 2, a particulate matter filter barrel groove 3 and at least two sampling heads, wherein the handle 1, the sampling gun barrel 2, the particulate matter filter barrel groove 3 and the sampling heads are connected in sequence and are communicated with each other; the sampling head comprises a particle sampling gun head 4 and a moisture content filtering gun head 5, and the particle sampling gun head 4 and the moisture content filtering gun head 5 are detachably connected with the sampling gun tube 2 through a particle filter tube groove 3; a temperature sensing line interface 8, a pitot tube pressure measuring interface 9 and a moisture content testing interface 10 are integrally arranged on the handle 1 and are respectively used for connecting a temperature sensing input interface, a pitot tube and a moisture content testing interface of a tester;
a first opening and a second opening are formed in a shaft section, close to the handle 1, of the sampling gun barrel 2, the first opening is connected with a moisture content water container 7, the second opening is connected with a particulate matter collecting container 6 with a sampling interface, and the moisture content testing interface 10 and the sampling interface of the particulate matter collecting container 6 are sealed through a sealing plug 11; the moisture content water container 7 is detachably connected with the first opening, when moisture content testing is carried out, clear water is added into the moisture content water container 7 and is used for wetting collected waste gas, and the moisture content is measured by adopting a dry-wet ball method;
the particle filter cylinder groove 3 is of a reducing circular tube structure and comprises a large-diameter end and a small-diameter end, wherein the small-diameter end is in threaded connection with the sampling gun tube 2, and the large-diameter end is in threaded connection with the particle sampling gun head 4 or the moisture content filtering gun head 5;
the sampling gun also comprises a filter cartridge which can be arranged in the particle filter cartridge groove 3; the filter cartridge is used for filtering the exhaust gas when collecting the particulate matters, measuring the amount of the filtered particulate matters and converting the amount into concentration;
the particle sampling gun head 4 comprises a sampling elbow pipe 12 and a connecting seat I13, wherein a pipe orifice at the front end of the sampling elbow pipe 12 is a particle inlet end, a pipe orifice at the rear end of the sampling elbow pipe is integrally formed with the connecting seat I13 to form a through structure, and the sampling elbow pipe 12 is communicated with the particle filter cylinder groove 3 through the connecting seat I13;
the moisture content filtering gun head 5 comprises a filter tip 14 and a connecting base II 15, wherein the filter tip 14 is of a horn-shaped structure, a pipe orifice at the front end of the filter tip 14 is a water vapor inlet end, the rear end of the filter tip 14 and the connecting base II 15 are integrally formed into a through structure, and the filter tip 14 is communicated with the particulate matter filtering barrel groove 3 through the connecting base II 15;
when the moisture content measuring device is used, when a moisture content test is required, the moisture content filtering gun head 5 is connected with the particle filter cylinder groove 3, the sampling interface of the particle collection container 6 is blocked by the sealing plug 11, the moisture content filtering gun head 5 is connected with the moisture content testing interface 10 to form a unique gas path, clear water is added into the moisture content water container 7, the moisture content filtering gun head 5 is extended into a flue to sample, and a dry-wet ball method is adopted to measure the moisture content of waste gas according to requirements;
when needing to carry out the particulate matter sampling, at particulate matter filter cartridge groove 3 interior installation cartridge filter, make particulate matter sampling rifle head 4 be connected with particulate matter filter cartridge groove 3, use sealing plug 11 to plug up moisture test interface 10, make particulate matter sampling rifle head 4 to particulate matter collection container 6 form only gas circuit, stretch into particulate matter sampling rifle head 4 and take a sample in the flue, the cartridge filter filters waste gas, take out the cartridge filter after the sample finishes, measure the volume of the particulate matter of filtering out, thereby calculate the concentration of particulate matter in obtaining waste gas.
Example 2
A multifunctional flue gas moisture content and particulate matter sampling gun with a replaceable sampling head comprises a handle 1, a sampling gun tube 2, a connecting member 18 and at least two sampling heads, wherein the handle 1, the sampling gun tube 2, the connecting member 18 and the sampling heads are sequentially connected and communicated with one another; the sampling head comprises a particulate matter sampling gun head 4 and a moisture content filtering gun head 5; the particle sampling gun head 4 and the moisture content filtering gun head 5 are detachably connected with the sampling gun barrel 2 through a connecting component 18; a temperature sensing line interface 8, a pitot tube pressure measuring interface 9 and a moisture content testing interface 10 are integrally arranged on the handle 1 and are respectively used for connecting a temperature sensing input interface, a pitot tube and a moisture content testing interface of a tester;
a first opening and a second opening are formed in a shaft section, close to the handle 1, of the sampling gun barrel 2, the first opening is connected with a moisture content water container 7, the second opening is connected with a particulate matter collecting container 6 with a sampling interface, and in the embodiment, the moisture content testing interface 10 and the sampling interface of the particulate matter collecting container 6 can be sealed through a sealing plug 11; the moisture content water container 7 is detachably connected with the first opening, when moisture content testing is carried out, clear water is added into the moisture content water container 7 and is used for wetting collected waste gas, and the moisture content is measured by adopting a dry-wet ball method;
a particle sampling pipe 16 and a moisture content sampling pipe 17 are arranged in the sampling gun pipe 2, wherein the particle sampling gun head 4 is connected with the particle collection container 6 through the particle sampling pipe 16 to form a particle sampling channel; the moisture content filtering gun head 5 is connected with the moisture content water container 7 and the moisture content testing interface 10 through a moisture content sampling pipe 17 to form a moisture content sampling channel;
a filter cartridge positioning groove 19 is formed in the pipe orifice of one side, close to the sampling head, of the particulate matter sampling pipe 16, and an annular boss 20 for limiting the filter cartridge is arranged on the pipe wall of the particulate matter sampling pipe 16; the filter cartridge positioning groove 19 is used for installing a filter cartridge in the filter cartridge positioning groove 19 when collecting particulate matters, filtering the exhaust gas by using the filter cartridge, measuring the amount of the filtered particulate matters, and converting the amount into concentration;
the particle sampling gun head 4 comprises a sampling elbow pipe 12 and a connecting seat I13, wherein the front end pipe orifice of the sampling elbow pipe 12 is a particle inlet end, the rear end pipe orifice of the sampling elbow pipe is integrally formed into a through structure with the connecting seat I13, the sampling elbow pipe 12 is arranged at the eccentric position of the connecting seat I13 and corresponds to the particle sampling pipe 16, the rear end pipe orifice of the sampling elbow pipe 12 extends outwards to form a circular pipe-shaped structure so as to be sleeved in the particle sampling pipe 16, and the particle sampling gun head 4 is detachably connected with a connecting component 18 through the connecting seat I13;
the moisture content filtering gun head 5 comprises a filter tip 14 and a connecting base II 15, the filter tip 14 is of a horn-shaped structure, the front end of the filter tip 14 is a moisture inlet end, the rear end of the filter tip 14 and the connecting base II 15 are integrally formed into a through structure, the filter tip 14 is arranged at the eccentric position of the connecting base II 15 and corresponds to the moisture content sampling pipe 17, the rear end of the filter tip 14 extends outwards to form a circular tubular structure so as to be sleeved in the moisture content sampling pipe 17, and the moisture content filtering gun head 5 is detachably connected with a connecting component 18 through the connecting base II 15;
the connecting member 18 is of a reducing circular tube structure and comprises a large-diameter end and a small-diameter end, wherein the small-diameter end is in threaded connection with the sampling gun barrel 2, and the large-diameter end is detachably connected with the particulate matter sampling gun head 4 or the moisture content filtering gun head 5 in a buckling mode;
when the moisture content testing device is used, when the moisture content testing is required, the moisture content filtering gun head 5 is connected with the connecting component 18, the moisture content filtering gun head 5 is connected with the moisture content water container 7 and the moisture content testing interface 10 through the moisture content sampling pipe 17 to form a moisture content sampling channel, clear water is added into the moisture content water container 7, the moisture content filtering gun head 5 is extended into a flue to sample, and the moisture content of waste gas is measured according to requirements by adopting a dry-wet ball method;
when the particulate matter is required to be sampled, the particulate matter sampling gun head 4 is connected with the connecting component 18, the particulate matter sampling gun head 4 is connected with the particulate matter collecting container 6 through the particulate matter sampling pipe 16 to form a particulate matter sampling channel, the particulate matter sampling gun head 4 extends into a flue to be sampled, the exhaust gas is filtered by the filter cartridge, the filter cartridge is taken out after the sampling is finished, the amount of the filtered particulate matter is measured, and therefore the concentration of the particulate matter in the exhaust gas is calculated; the particulate matter sampling pipe 16 and the moisture content sampling pipe 17 are two independent sampling channels, which do not interfere with each other, and the accuracy of the measured data is improved.
Above, only the preferred embodiment of the present invention is not right the technical scope of the present invention makes any restriction, and the technical personnel in this industry can make some deformations and modifications under this technical scheme's enlightenment, all the basis the utility model discloses a technical essence is to any modification, the equivalent change and the modification of making of above embodiment, all still belong to the technical scheme's scope of the present invention.
Claims (10)
1. The multifunctional flue gas moisture content and particulate matter sampling gun with the replaceable sampling head is characterized by comprising a handle, a sampling gun barrel, a particulate matter filter barrel groove and at least two sampling heads, wherein the handle, the sampling gun barrel, the particulate matter filter barrel groove and the sampling heads are sequentially connected and communicated with one another; the sampling head comprises a particulate matter sampling gun head and a moisture content filtering gun head, and the particulate matter sampling gun head and the moisture content filtering gun head are detachably connected with the sampling gun barrel through a particulate matter filter barrel groove; a temperature sensing wire interface, a pitot tube pressure measuring interface and a moisture content testing interface are integrally arranged on the handle; first opening and second opening have been seted up on the shaft part that is close to the handle to the sampling gun barrel, moisture content water container is connected to first opening, and the particulate matter collection container of taking the sampling interface is connected to the second opening to moisture content test interface and particulate matter collection container's sampling interface all seals through the sealing plug.
2. The multifunctional sampling gun with the replaceable sampling head for the moisture content in the flue gas and the particulate matters as claimed in claim 1, wherein the sampling gun head for the particulate matters comprises a sampling elbow and a connecting seat I, a front end nozzle of the sampling elbow is a particulate matter inlet end, a rear end nozzle of the sampling elbow and the connecting seat I are integrally formed into a through structure, and the sampling elbow is communicated with a particulate matter filter cylinder groove through the connecting seat I.
3. The multifunctional sampling gun with the replaceable sampling head for the moisture content in the smoke and the particulate matters as claimed in claim 1, wherein the moisture content filtering gun head comprises a filter tip and a connecting seat II, a nozzle at the front end of the filter tip is a moisture inlet end, the rear end of the filter tip and the connecting seat II are integrally formed into a through structure, and the filter tip is communicated with a particulate matter filter cartridge groove through the connecting seat II.
4. The multifunctional sampling gun with the replaceable sampling head for flue gas moisture content and particulate matter according to claim 1, wherein the particulate matter filter cylinder groove is of a reducing circular tube structure and comprises a large-diameter end and a small-diameter end, the small-diameter end is in threaded connection with the sampling gun barrel, and the large-diameter end is in threaded connection with the particulate matter sampling gun head or the moisture content filtering gun head.
5. The multifunctional flue gas moisture content and particulate matter sampling gun with the replaceable sampling head as claimed in claim 1, wherein the sampling gun further comprises a filter cartridge, and the filter cartridge can be installed in a particulate matter filter cartridge groove.
6. The multifunctional sampling gun with the replaceable sampling head for the moisture content and the particulate matters in the flue gas is characterized by comprising a handle, a sampling gun barrel, a connecting component and at least two sampling heads, wherein the handle, the sampling gun barrel, the connecting component and the sampling heads are sequentially connected and communicated with one another; the sampling head comprises a particulate matter sampling gun head and a moisture content filtering gun head; the particle sampling gun head and the moisture content filtering gun head are detachably connected with the sampling gun barrel through a connecting component; a temperature sensing wire interface, a pitot tube pressure measuring interface and a moisture content testing interface are integrally arranged on the handle; the sampling gun barrel is provided with a first opening and a second opening on a shaft section close to the handle, the first opening is connected with a moisture content water container, and the second opening is connected with a particulate matter collecting container with a sampling interface;
a particle sampling pipe and a moisture content sampling pipe are arranged in the sampling gun pipe, wherein the particle sampling gun head is connected with a particle collection container through the particle sampling pipe to form a particle sampling channel; the moisture content filtering gun head is connected with the moisture content water container and the moisture content testing interface through the moisture content sampling pipe to form a moisture content sampling channel.
7. The multifunctional flue gas moisture content and particulate matter sampling gun with the replaceable sampling head as claimed in claim 6, wherein the particulate matter sampling gun head comprises a sampling elbow and a connecting seat I, a front end pipe orifice of the sampling elbow is a particulate matter inlet end, a rear end pipe orifice of the sampling elbow and the connecting seat I are integrally formed into a through structure, the sampling elbow is arranged at an eccentric position of the connecting seat I and corresponds to the particulate matter sampling pipe, a rear end pipe orifice of the sampling elbow extends outwards to form a circular tubular structure so as to be sleeved in the particulate matter sampling pipe, and the particulate matter sampling gun head is detachably connected with the connecting component through the connecting seat I.
8. The multifunctional sampling gun with the replaceable sampling head for the moisture content in the smoke and the particulate matters as claimed in claim 6, wherein the moisture content filtering gun head comprises a filter tip and a connecting seat II, the front end of the filter tip is a moisture inlet end, the rear end of the filter tip and the connecting seat II are integrally formed into a through structure, the filter tip is arranged at an eccentric position of the connecting seat II and corresponds to the moisture content sampling pipe, the rear end of the filter tip extends outwards to form a circular tubular structure so as to be sleeved in the moisture content sampling pipe, and the moisture content filtering gun head is detachably connected with the connecting component through the connecting seat II.
9. The multifunctional flue gas moisture content and particulate matter sampling gun with the replaceable sampling head as claimed in claim 6, wherein the connecting member is a reducing circular tube structure comprising a large diameter end and a small diameter end, wherein the small diameter end is in threaded connection with the sampling gun barrel, and the large diameter end is detachably connected with the particulate matter sampling gun head or the moisture content filtering gun head in a buckling manner.
10. The multifunctional flue gas moisture content and particulate matter sampling gun with the replaceable sampling head as claimed in claim 6, wherein the particulate matter sampling pipe is provided with a filter cartridge positioning groove at a position close to the nozzle at one side of the sampling head.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020995421.3U CN213121284U (en) | 2020-06-03 | 2020-06-03 | Multifunctional flue gas moisture content and particulate matter sampling gun with replaceable sampling head |
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| CN202020995421.3U CN213121284U (en) | 2020-06-03 | 2020-06-03 | Multifunctional flue gas moisture content and particulate matter sampling gun with replaceable sampling head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432932A (en) * | 2021-06-08 | 2021-09-24 | 北京市劳动保护科学研究所 | Catering oil smoke pollutant sampling device |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113432932A (en) * | 2021-06-08 | 2021-09-24 | 北京市劳动保护科学研究所 | Catering oil smoke pollutant sampling device |
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