CN115420561B - Carbon-containing gas catcher and carbon-containing concentration measuring device - Google Patents
Carbon-containing gas catcher and carbon-containing concentration measuring device Download PDFInfo
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- CN115420561B CN115420561B CN202211374928.7A CN202211374928A CN115420561B CN 115420561 B CN115420561 B CN 115420561B CN 202211374928 A CN202211374928 A CN 202211374928A CN 115420561 B CN115420561 B CN 115420561B
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 67
- 238000007789 sealing Methods 0.000 claims description 35
- 230000005540 biological transmission Effects 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 97
- 239000002245 particle Substances 0.000 description 11
- 238000005259 measurement Methods 0.000 description 10
- 230000035939 shock Effects 0.000 description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000005431 greenhouse gas Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- 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
- G01N1/2258—Sampling from a flowing stream of gas in a stack or chimney
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0067—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display by measuring the rate of variation of the concentration
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Combustion & Propulsion (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention is suitable for the technical field of carbon neutralization and carbon emission, and provides a carbon-containing gas catcher and a carbon-containing concentration measuring device, which comprise: the first pipe body is positioned in the circumferential direction of the first pipe body, a first side hole is formed at the far end close to the first pipe body, a second side hole is formed at the near end close to the first pipe body, and the opening area of the second side hole is larger than that of the first side hole; the first side hole and the second side hole are positioned on the same side of the first pipe body; the second pipe body is rotatably and hermetically arranged on the inner wall of the first pipe body; the second pipe body is provided with a first via hole corresponding to the first side hole and a second via hole corresponding to the second side hole; in the invention, the first side hole and the second side hole are opposite to the incoming flow direction when the gas is collected, so that the gas acts on the first side hole and the second side hole in a balanced manner, and the first pipe body is prevented from vibrating due to the fact that the incoming flow gas impacts the first side hole and the second side hole and generates torque due to unbalanced stress of the first side hole and the second side hole.
Description
Technical Field
The invention belongs to the technical field of carbon neutralization and carbon emission; relates to a carbon-containing gas catcher, in particular to a device for measuring the carbon-containing concentration of gas flow.
Background
Carbon neutralization generally refers to the total emission amount of carbon dioxide or greenhouse gas generated directly or indirectly by countries, enterprises, products, activities or individuals within a certain time, and the emission amount of the carbon dioxide or the greenhouse gas generated by the carbon neutralization is offset through the forms of tree planting, energy conservation, emission reduction and the like, so that positive and negative offset is realized, and relative zero emission is achieved. Therefore, the state monitors the carbon content of carbon emission of each large enterprise in production and operation; the carbon concentration in the exhaust gas of an enterprise needs to be measured first, so as to obtain the carbon content in the exhaust gas. In the prior art, a carbon emission monitoring and alarming system CN113341080B for power production is disclosed, but the problem that the actually measured carbon emission amount is greatly different from the enterprise nominal carbon emission amount is not solved.
Disclosure of Invention
The object of the present invention is to provide a carbonaceous gas trap comprising:
the far end of the first tube body is of a closed structure, and the near end of the first tube body is of an open structure; a first side hole is formed in the circumferential direction of the first pipe body and close to the far end of the first pipe body, a second side hole is formed in the near end of the first pipe body, and the opening area of the second side hole is larger than that of the first side hole; the first side hole and the second side hole are positioned on the same side of the first pipe body, and the axes of the first side hole and the second side hole are parallel to each other;
the second pipe body is rotatably and hermetically arranged on the inner wall of the first pipe body; the second pipe body is provided with a first via hole corresponding to the first side hole and a second via hole corresponding to the second side hole; first side opening and first via hole in second side opening and the second via hole, arbitrary a set of alternative switches on.
Preferably, the distal end of the second tube is an open end.
Preferably, the carbonaceous gas trap further comprises:
the sheath pipe is arranged on the outer side of the first pipe body and is in sealing connection with the outer wall of the first pipe body, and the first pipe body can slide along the axis direction of the sheath pipe.
Preferably, the first via hole matches a size of the first side hole, and the second via hole matches a size of the second side hole.
Preferably, an included angle formed between a projection of the axis of the first through hole in the axial direction of the second pipe and a projection of the axis of the second through hole in the axial direction of the second pipe is 180 °.
Preferably, the proximal end of the first tube is provided with a first handle, and the proximal end of the second tube is provided with a second handle.
The invention also provides a device for measuring the carbon-containing concentration of the gas flow, a carbon-containing gas catcher is used for partially extending into the gas transmission channel of the pipeline, and the device is characterized in that: the first side hole is located in a central region of the gas transmission channel.
Preferably, the carbon concentration measuring device includes: an air duct and a concentration sensor; one end of the air guide tube is communicated with the near end of the second tube body, and the other end of the air guide tube is connected with the concentration sensor.
Preferably, the carbon concentration measuring apparatus further includes:
the sealing valve comprises a valve body, a valve core and a valve rod, the valve body is provided with an axial accommodating space, one end of the valve body is fixedly connected to the pipeline, and the axial accommodating space of the valve body is communicated with the interior of the pipeline; the valve core is arranged in the valve body and is connected with the valve body in a sealing way; the valve core is fixedly connected with one end of the valve rod, and the other end of the valve rod is positioned outside the valve body and used for driving the valve core to rotate; the valve core can selectively isolate the axial accommodating space; the first pipe body can extend into the central area inside the pipeline through the axial accommodating space of the sealing valve.
Preferably, the valve core is spherical, a through hole is formed in the valve core, and the through hole is matched with the outer ring profile of the first pipe body.
Has the beneficial effects that:
1. in the invention, the first side hole and the second side hole are opposite to the incoming flow direction when the gas is collected, so that the force of the gas acting on the first side hole and the second side hole is balanced, and the first pipe body is prevented from vibrating due to the fact that the incoming flow gas impacts the first side hole and the second side hole and the torque is generated due to unbalanced stress of the first side hole and the second side hole.
2. In the invention, any one group of the first side hole, the first through hole and the second side hole and the second through hole is alternatively communicated, so that the carbon-containing concentration of the gas close to the inner wall of the pipeline and the carbon-containing concentration of the gas in the central area of the pipeline can be independently measured, and the carbon-containing concentrations in the gas at the two positions are mathematically calculated, so that the whole carbon-containing concentration of the gas in the pipeline can be obtained.
3. In the invention, the purpose of larger apertures of the second side hole and the second via hole is to overcome the problem of non-uniformity of gas near the inner wall of the pipeline, so that the measurement error is reduced by increasing the size of the acquisition hole; meanwhile, the second side hole and the second via hole have another effect that in a certain period, the carbon-containing concentration of the gas collected from the second side hole and the second via hole is analyzed and compared, when the carbon-containing concentration is greater than the preset concentration, the preset value of the adhesion degree of the particles on the inner wall of the pipeline can be judged, the pipeline needs to be cleaned under the condition, and therefore good operation of the pipeline is guaranteed.
4. In the invention, the purpose that the apertures of the first side hole and the first via hole are small is that the gas in the central area of the pipeline has better stability and stronger uniformity, so that the floating deviation of the carbon concentration of the gas obtained at the position is smaller, but if the first side hole and the first via hole have larger sizes, the gas flow directly impacts the windward side behind the first via hole to generate shock waves, the first pipe body and the second pipe body vibrate under the impact of the shock waves, particles attached to the inner wall of the pipeline fall under the vibration action, and if the second side hole and the second via hole are conducted at the moment, a large amount of particles are collected by the second side hole and the second via hole, so that the measured value is larger; therefore, the first side holes and the first via holes are small in size, so that shock waves can be effectively reduced, and vibration is relieved or even avoided.
5. In the invention, the sheath tube is preferably made of elastic rubber, one end of the first tube body and one end of the second tube body are arranged in the airflow of the pipeline, so that the first tube body and the second tube body have torque relative to the sealing valve under the action of high-speed airflow, and the vibration can be directly transmitted to the sealing valve, so that the pipeline is vibrated, and the measured value is influenced; therefore, the sheath tube can effectively relieve vibration by adopting an elastic rubber material, and the sealing stability between the first tube body and the sealing valve is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or in the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a first tube and a second tube provided by the present invention, and a partially enlarged view of areas I and J;
FIG. 2 is a schematic view of a carbonaceous gas trap provided by the present invention installed on a pipeline, and a partially enlarged view of region A;
FIG. 3 is a schematic view of the structure of the carbonaceous gas trap provided by the present invention installed in the inner cavity of the pipeline, and a schematic view of a portion of the area B;
fig. 4 is a schematic structural view of the first side hole of the first tube and the first via hole of the second tube in a conducting state, and a partial enlarged schematic view of the M and N regions;
fig. 5 is a schematic structural view of a second side hole of the first tube and a second via hole of the second tube in a conducting state, and a partially enlarged schematic view of a region K and a region L according to the present invention;
FIG. 6 is a schematic view of a first construction of the sheath mounted to the valve body provided by the present invention;
FIG. 7 is a second structural view of the sheath mounted to the valve body according to the present invention, and a partially enlarged view of a region W;
fig. 8 is a first schematic view of a carbonaceous gas trap provided by the invention mounted to a sealing valve, and a partially enlarged schematic view of region F;
FIG. 9 is a schematic view of the valve core in a sealing state, the first tube abutting against the valve core, and a partially enlarged view of the area G;
FIG. 10 is a schematic view of the valve cartridge provided by the present invention in an open state, and a partially enlarged view of region H;
figure 11 is a schematic view of a second configuration of the first tube mounted to the sealing valve provided by the present invention;
fig. 12 is a schematic view of the first and second tubes in a first state, and a partial enlarged view of a region D according to the present invention;
fig. 13 is a schematic view of the first and second tubes in a second state, and a partial enlarged view of the region C according to the present invention;
fig. 14 is a second schematic view of the carbonaceous gas trap provided by the present invention mounted to the sealing valve, and a partially enlarged schematic view of region E.
In the drawings:
10. a pipeline; 11. a valve body; 110. an axial accommodating space; 110a, a spherical accommodating space; 12. a valve core; 120. a through hole; 13. a rotating wheel; 14. a limiting boss; 20. a carbonaceous gas trap; 21. a second handle; 210. a second toggle part; 211. a second tube body; 211a, a second via hole; 211b, first via holes; 22. a first handle; 220. a first toggle part; 221. a first pipe body; 221a and a second side hole; 221b, a first side hole; 23. a sheath tube; 230. an annular space; 231. a sheath body of the sheath; 232. a limiting part; 30. a concentration sensor; 31. an air duct.
Detailed Description
The following description provides many different embodiments, or examples, for implementing different features of the invention. The particular examples set forth below are illustrative only and are not intended to be limiting.
The carbon concentration of the carbon-containing gas conveyed by the pipeline is actually measured, the obtained carbon emission concentration is analyzed, the gas catcher of the conventional carbon-containing gas concentration measuring device is arranged on the conveying pipeline for a long time, when the gas catcher is disassembled, cleaned and overhauled, the corresponding pipeline needs to be cut off, the pipeline is returned after the installation and maintenance are finished, due to the inconvenience in disassembly and assembly, the overhauling or cleaning disassembly frequency of the gas catcher is low, however, long-term observation shows that a plurality of particles are usually mixed in the carbon-containing gas, when the carbon-containing gas is conveyed in the pipeline, the particles can be attached to a flow channel of the gas catcher for detecting the concentration of the carbon-containing gas, and after analysis, the carbon content in the particles is high, so when the particles are attached to the flow channel of the gas catcher, the carbon-containing gas flowing through the gas catcher can carry the particles attached to the flow channel of the gas catcher before flowing to the carbon-containing concentration sensor, and finally the carbon concentration of the measured carbon-containing gas is larger than the actual carbon concentration.
In addition, the flow rate of the gas in the pipe through which the carbon-containing gas is transported is generally high, and the gas trap vibrates at high frequency when it is impacted onto the gas trap, and the vibration is not easily detected because the gas trap is disposed in the pipe; by analyzing the reason of the high-frequency vibration, the fact that the windward surface area of the existing gas catcher is large is found, so that the resistance of the existing gas catcher to the airflow is large, and the flow field is further greatly influenced; specifically, the airflow impacts the windward surface of the gas catcher in the front and then is divided from two sides, the gas catcher vibrates due to the impact of the airflow, and after the airflow flows through the gas catcher, the airflow generates vortex at the rear side of the gas catcher, the vortex causes the gas catcher to be unevenly pressed, so that the gas catcher generates high-frequency vibration, and the long-term high-frequency vibration also damages the seal between the gas catcher and the pipeline.
In addition, it should be noted that the stability of the gas flow in the pipeline close to the wall surface of the pipeline is poor, and the particles in the gas can be attached to the wall surface of the pipeline, so if the gas catcher is only arranged close to the inner wall of the pipeline, the carbon content concentration of the measured gas is unstable; if the gas trap is arranged in the central area of the pipeline, the measurement result will deviate from the real result greatly. Through the analysis, the invention is obtained by thoroughly modifying the existing gas catcher.
Referring now to fig. 1, the present invention provides a carbonaceous gas trap 20 for use in a pipeline 10, the gas trap comprising:
a first tube 221, a distal end of the first tube 221 is a closed structure, the distal end refers to a lower end of the first tube 221 in fig. 1, a proximal end of the first tube 221 is an open structure, and the proximal end refers to an upper end of the first tube 221 in fig. 1; in the circumferential direction of the first tube 221, a first side hole 221b is formed near the distal end of the first tube 221, and a second side hole 221a is formed near the proximal end of the first tube 221, specifically, the second side hole 221a is formed above the first side hole 221b, and the opening area of the second side hole 221a is larger than that of the first side hole 221 b.
Further, when the first pipe 221 is inserted into the pipe 10 along the radial direction of the pipe 10, the second side hole 221a is located in the central area of the pipe 10, and as shown in fig. 2 and 3, the second side hole 221a is used for trapping gas located near the central area of the pipe 10. With reference to fig. 1, the first side hole 221b and the second side hole 221a are located on the same side of the first tube 221, and the axes of the first side hole 221b and the second side hole 221a are parallel to each other, so as to ensure that the first side hole 221b and the second side hole 221a can collect gas in the same incoming flow direction; the first side hole 221b and the second side hole 221a face the incoming flow direction when collecting the gas, so that the force of the gas acting on the first side hole 221b and the second side hole 221a is balanced, and the first pipe 221 is prevented from vibrating due to the torque generated by the unbalanced force of the incoming flow gas impacting the first side hole 221b and the second side hole 221 a.
As shown in fig. 1, the present invention further includes a second tube 211, wherein the second tube 211 is rotatably and sealingly disposed on an inner wall of the first tube 221; the second tube body 211 is provided with a first via hole 211b corresponding to the first side hole 221b and a second via hole 211a corresponding to the second side hole 221 a; any one of the first side hole 221b and the first via hole 211b, and the second side hole 221a and the second via hole 211a is selectively conducted. Any one group of the switches is selected to be switched on: when the first side hole 221b is conducted with the first via hole 211b, the tube wall of the second tube 211 shields the second side hole 221a of the first tube 221, so that the second side hole 221a and the second via hole 211a are in a non-conducting state; when the second side hole 221a is communicated with the second via hole 211a, the wall of the second tube 211 covers the first side hole 221b of the first tube 221, so that the first via hole 211b and the first side hole 221b are in a non-conductive state; it should be further noted that, referring to fig. 4, the state that the first side hole 221b and the first via hole 211b are in a conducting state means that the axis of the first side hole 221b coincides with the axis of the first via hole 211b, and the shape and size of the first side hole 221b are matched with the shape and size of the first via hole 211 b; referring to fig. 5, the second side hole 221a and the second via hole 211a are in a conducting state or the axis of the second side hole 221a coincides with the axis of the second via, and the shape and size of the second side hole 221a and the second via hole 211a are matched.
Preferably, an included angle formed between a projection of the axis of the first through hole 211b in the axial direction of the second pipe 211 and a projection of the axis of the second through hole 211a in the axial direction of the second pipe 211 is 180 °. That is, when the second side hole 221a is conducted with the second via hole 211a, the second tube 211 or the first tube 221 is rotated to rotate 180 ° relative to each other, so that the first side hole 221b is conducted with the first via hole 211b, and the second side hole 221a is not conducted with the second via hole 211a; or, when the first side hole 221b is conducted with the first via hole 211b, after the second tube 211 or the first tube 221 is rotated to rotate 180 ° relative to each other, the second side hole 221a is conducted with the second via hole 211a, and the first side hole 221b and the first via hole 211b are conducted in a non-conducting state.
Based on the foregoing analysis, by alternatively conducting any one of the first side hole 221b and the first via hole 211b and the second side hole 221a and the second via hole 211a in order to obtain the entire carbon concentration of the gas inside the pipe 10 by separately measuring the carbon concentration of the gas near the inner wall of the pipe 10 and the carbon concentration of the gas in the central region of the pipe 10 and performing mathematical calculation on the carbon concentrations in the gases at the two positions, the present invention can reduce measurement errors compared to the prior art in which only one gas collection is performed, thereby allowing easier approximation to the actual value. It should be noted that, in the present invention, the purpose of the larger aperture of the second side hole 221a and the second via hole 211a is to overcome the problem of non-uniformity of the gas near the inner wall of the pipeline 10, so that the measurement error is reduced by increasing the size of the collecting hole, and the collecting range is wider; meanwhile, the second side hole 221a and the second via hole 211a have another function that, in a certain period, by analyzing and comparing the carbon-containing concentrations of the gases collected at the second side hole 221a and the second via hole 211a, when the carbon-containing concentrations reach a high-frequency wave peak value, an extreme value that the adhesion degree of the particulate matters on the inner wall of the pipeline 10 reaches can be judged, and the particulate matters continuously fall off under the action of the airflow, so that the pipeline 10 can be judged to be required to be cleaned under the condition, and the good operation of the pipeline 10 is ensured. In addition, the purpose of the smaller apertures of the first side hole 221b and the first through hole 211b is to ensure better gas stability in the central region of the pipeline 10 and stronger uniformity, so that the fluctuation of the carbon concentration of the gas obtained at this position is smaller, but if the first side hole 221b and the first through hole 211b are larger in size, the airflow directly impacts the windward side behind the first through hole 211b to generate shock waves, the first tube 221 and the second tube 211 vibrate under the impact of the shock waves, the particles attached to the inner wall of the pipeline 10 fall off under the vibration action, and if the second side hole 221a and the second through hole 211a are conducted at this time, a large amount of particles are collected by the second side hole 221a and the second through hole 211a, and the measurement value at the measurement position is larger; therefore, the first side holes 221b and the first via holes 211b have smaller sizes, and a large amount of airflow bypasses the first side holes 221b, so that the airflow directly acting on the first side holes 221b in the front direction is reduced, and therefore, the generation of shock waves can be effectively reduced, and the occurrence of vibration can be alleviated or even avoided. In the present invention, the first pipe 221 and the second pipe 211 are preferably pipes having arc surfaces, particularly, circular pipes, and the incoming flow is branched after contacting the pipes to further reduce the vibration.
In an alternative embodiment, a plurality of openings (not shown) with different apertures may be disposed on the first pipe 221, the openings are disposed in the area between the first side hole 221b and the second side hole 221a, and all the openings are arranged in a straight line and disposed on the windward side of the airflow in the pipeline; offer the conducting hole corresponding with above-mentioned trompil on second body 211, the conducting hole spiral sets up on the periphery wall of second body 211 to the axis of every trompil is the contained angle setting at the projection of second body 211 axis direction, can make the trompil that corresponds and conducting hole switch on through operation second body 211 rotation, realizes measuring the carbon concentration of gas in the different regions in the pipeline 10.
As shown in fig. 1, preferably, the distal end of the second tube 211 is an open end, so as to: after finishing the gas measurement task, pull out the gas catcher from pipeline 10, because particulate matter content is more in the gas, consequently need wash the inner wall of second body 211, adopt open structure to be of value to convenient washing.
With reference to fig. 1, regarding the installation of the first tube 221 and the second tube 211, the second tube 211 is inserted into the first tube 221 along the path S1, and then the whole body is inserted into the pipeline 10 through the sealing valve along the path S2. The sealing valve will be described in detail later, and will not be described in detail here.
Preferably, the proximal end of the first tube 221 is provided with a first handle 22 and/or a first toggle part 220, and the proximal end of the second tube 211 is provided with a second handle 21 and/or a second toggle part 210. The first tube 221 and the second tube 211 can be relatively rotated by breaking the first handle 22 (or the first toggle part 220) and/or the second handle 21 (or the second toggle part 210), so that the first side hole 221b and the first through hole 211b are conducted or the second side hole 221a and the second through hole 211a are conducted.
Referring to fig. 3, the present invention further provides a device for measuring the carbon-containing concentration of a gas flow in a pipeline 10, wherein a carbon-containing gas catcher 20 applied to the pipeline 10 is used to partially extend into a gas transmission channel of the pipeline 10, and the first side hole 221b is located in a central region of the gas transmission channel. Further, the carbon concentration measuring apparatus includes: an air duct 31 and a concentration sensor 30; one end of the air duct 31 is communicated with the near end of the second tube 211, and the other end of the air duct 31 is connected with the concentration sensor 30. Therefore, the gas flow passes through the first side hole 221b and the first through hole 211b, or the second side hole 221a and the second through hole 211a, and then is transmitted to the concentration sensor 30 through the gas guide tube 31, and the carbon content in the gas is measured.
Further, the carbon concentration measuring apparatus further includes:
a sealing valve, which includes a valve body 11, a valve core 12 and a valve rod, wherein the valve body 11 has an axial accommodating space 110, and one end of the valve body 11 is fixedly connected to the pipe 10, as shown in fig. 3; and the axial accommodation space 110 of the valve body 11 is communicated with the inside of the pipeline 10; the valve core 12 is arranged in the valve body 11 and is connected with the valve body 11 in a sealing way, and is shown in the attached figure 6; the valve core 12 is fixedly connected with one end of the valve rod (not shown), and the other end of the valve rod is positioned outside the valve body 11 and is used for driving the valve core 12 to rotate; the valve core 12 can selectively isolate the axial accommodating space 110; the first tube 221 can extend through the axial housing 110 of the sealing valve into the central region of the interior of the pipe 10.
It should be noted that, as an option, the aforementioned carbonaceous gas trap 20 further includes:
and a sheath 23, wherein the sheath 23 is disposed outside the first tube 221, and is hermetically connected to an outer wall of the first tube 221, and the first tube 221 is slidable along an axial direction of the sheath 23. The sheath 23 is configured to be sealingly mounted at the upper end of the sealing valve, please refer to fig. 8, and then the mounted first tube 221 and second tube 211 are inserted into the lumen of the sheath 23; since the carbonaceous gas trap 20 of the present invention is not disposed in the pipeline 10 for a long time, the carbonaceous gas concentration of the gas needs to be pulled out after measurement, so frequent plugging and unplugging will increase the ore volume between the first pipe 221 and the inner wall of the valve body 11 of the sealing valve, which will cause seal failure and leakage of the carbonaceous gas, and therefore, by disposing the sheath 23 and disposing it between the valve body 11 of the sealing valve and the first pipe 221 to form a sealing fit, if the seal failure occurs later, the fitted sheath 23 can be replaced, thereby reducing the maintenance cost; in addition, it should be noted that, the sheath 23 is preferably made of elastic rubber material, and one end of the first tube 221 and one end of the second tube 211 are disposed in the airflow of the duct 10, so that the first tube 221 and the second tube 211 have a torque relative to the sealing valve due to the high-speed airflow, and the vibration is directly transmitted to the sealing valve, and the duct 10 is vibrated, thereby affecting the measured value; therefore, the sheath 23 is made of elastic rubber, so that the vibration can be effectively reduced, and the sealing stability between the first pipe 221 and the sealing valve can be improved. Referring to fig. 7, the sheath 23 is provided with a limiting portion 232, when the sheath is mounted on the valve body 11, the upper end of the valve body 11 will abut against the limiting portion 232 of the sheath 23, and the tube 231 of the sheath will be partially accommodated in the axial accommodating space 110 of the valve body 11.
Regarding the sealing valve, the valve body 11 is provided with a spherical accommodation space 110a, and the spherical accommodation space 110a is communicated with the axial accommodation space 110; the valve core 12 is spherical and disposed in the spherical receiving space 110a, a through hole 120 is formed in the valve core 12, and the through hole 120 is adapted to an outer ring profile of the first tube 221.
As for the installation of the carbon-containing gas trap 20, specifically, as shown in fig. 6 (a), 6 (b) and 7, the sheath 23 is first installed into the axial accommodating space 110 along the axial direction of the valve body 11, and the end of the tube 231 of the sheath abuts against the limit boss 14 of the valve body 11, thereby completing the installation of the sheath 23. Then, the first tube 221 is inserted into the annular space 230 of the sheath 23, and the sealing valve is in a closed state before insertion, as shown in fig. 9; when the distal end of the first tube 221 is inserted into the annular space 230 of the sheath 23 and abuts against the outer side wall surface of the valve element 12, it should be noted that, at this time, the first tube 221 and the sheath 23 are in a sliding sealing state; further, the turning wheel 13 connected to the valve stem is turned to rotate the valve core 12 to reach the state shown in fig. 10 and 14, at which time, the sealing valve is opened; the first tube 221 is pushed to move downwards, so that the distal end of the first tube 221 passes through the through hole 120 in the center of the valve core 12 until reaching the pipeline 10, as shown in fig. 3, 11 and 12. Fig. 12 shows a state in which the second side hole 221a is closed by the second tube body 211 by rotating the first handle 22 and/or the second handle 21; fig. 13 shows a state in which the first side hole 221b is closed by the second tube body 211 by rotating the first handle 22 and/or the second handle 21. When the carbon content concentration of the gas is measured, the first handle 22 and/or the second handle 21 are switched between the two states shown in fig. 12 and 13 within a preset time period, so that the two characteristic positions in the pipeline 10 are captured within the preset time period, the concentration measurement is carried out, and finally the carbon content concentration of the gas in the pipeline 10 is obtained. After the measurement is completed, the distal end of the first tube 221 is pulled out to the valve core 12, and then the rotating wheel 13 is rotated to make the valve core 12 rotate to close the sealing valve, and then the first tube 221 is pulled out from the sealing valve.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. A carbonaceous gas trap, comprising:
a first tube (221), wherein the distal end of the first tube (221) is of a closed structure, and the proximal end of the first tube (221) is of an open structure; the first side hole (221 b) is formed in the circumferential direction of the first pipe body (221), the far end of the first pipe body (221) is close to the first pipe body, the near end of the first pipe body (221) is close to the second side hole (221 a), and the opening area of the second side hole (221 a) is larger than that of the first side hole (221 b); the first side hole (221 b) and the second side hole (221 a) are positioned on the same side of the first pipe body (221), and the axes of the first side hole (221 b) and the second side hole (221 a) are parallel to each other;
the second pipe body (211), the second pipe body (211) can be rotatably and hermetically arranged on the inner wall of the first pipe body (221); the second pipe body (211) is provided with a first through hole (211 b) corresponding to the first side hole (221 b) and a second through hole (211 a) corresponding to the second side hole (221 a); any one group of the first side hole (221 b) and the first via hole (211 b), the second side hole (221 a) and the second via hole (211 a) is selected to be conducted;
wherein any one group of alternative conduction means: when the first side hole (221 b) is communicated with the first through hole (211 b), the tube wall of the second tube body (211) shields the second side hole (221 a) on the first tube body (221), so that the second side hole (221 a) and the second through hole (211 a) are in a non-conduction state; when the second side hole (221 a) is communicated with the second through hole (211 a), the tube wall of the second tube body (211) shields the first side hole (221 b) on the first tube body (221), so that the first through hole (211 b) and the first side hole (221 b) are in a non-conduction state; the first side hole (221 b) and the first through hole (211 b) are in a conducting state, namely the axis of the first side hole (221 b) is coincident with the axis of the first through hole (211 b), and the shape and the size of the first side hole (221 b) are matched with those of the first through hole (211 b).
2. A carbonaceous gas trap as defined in claim 1 wherein: the far end of the second tube body (211) is an open end.
3. A carbonaceous gas trap as defined in claim 1 further comprising:
the sheath (23) is arranged on the outer side of the first pipe body (221) and is connected with the outer wall of the first pipe body (221) in a sealing mode, and the first pipe body (221) can slide along the axial direction of the sheath (23).
4. A carbonaceous gas trap as defined in claim 1 wherein: the first via hole (211 b) matches a size of the first side hole (221 b), and the second via hole (211 a) matches a size of the second side hole (221 a).
5. A carbonaceous gas trap as defined in claim 1 wherein: the projection of the axis of the first via hole (211 b) in the axial direction of the second pipe body (211) forms an included angle of 180 degrees with the projection of the axis of the second via hole (211 a) in the axial direction of the second pipe body (211).
6. A carbonaceous gas trap as defined in claim 1 wherein: the near end of the first pipe body (221) is provided with a first handle (22), and the near end of the second pipe body (211) is provided with a second handle (21).
7. A device for measuring the carbon-containing concentration of a gas stream, a carbon-containing gas trap (20) according to any one of claims 1 to 5 being adapted to extend partially into the gas transport path of a pipeline (10), characterized in that: the first side hole (221 b) is located in a central region of the gas transmission channel.
8. A gas flow carbon content measuring apparatus according to claim 7, comprising: an air duct (31) and a concentration sensor (30); one end of the air duct (31) is communicated with the near end of the second tube body (211), and the other end of the air duct (31) is connected with the concentration sensor (30).
9. The apparatus of claim 7, further comprising:
the sealing valve comprises a valve body (11), a valve core (12) and a valve rod, wherein the valve body (11) is provided with an axial accommodating space (110), one end of the valve body (11) is fixedly connected to the pipeline (10), and the axial accommodating space (110) of the valve body (11) is communicated with the inside of the pipeline (10);
the valve core (12) is arranged in the valve body (11) and is connected with the valve body (11) in a sealing way; the valve core (12) is fixedly connected with one end of the valve rod, and the other end of the valve rod is positioned outside the valve body (11) and used for driving the valve core (12) to rotate;
the valve core (12) can selectively isolate the axial accommodating space (110); the first tube (221) can project into a central region inside the pipe (10) through the axial housing space (110) of the sealing valve.
10. A gas flow carbon content measuring apparatus according to claim 9, wherein: the valve core (12) is spherical, a through hole (120) is formed in the valve core (12), and the through hole is matched with the outer ring profile of the first pipe body (221).
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