LU504041B1 - The flue gas flow adjusting device, sampling pipe and flow adjusting method - Google Patents
The flue gas flow adjusting device, sampling pipe and flow adjusting method Download PDFInfo
- Publication number
- LU504041B1 LU504041B1 LU504041A LU504041A LU504041B1 LU 504041 B1 LU504041 B1 LU 504041B1 LU 504041 A LU504041 A LU 504041A LU 504041 A LU504041 A LU 504041A LU 504041 B1 LU504041 B1 LU 504041B1
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- Prior art keywords
- flue gas
- main pipe
- gas flow
- pipe
- rotary piston
- Prior art date
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 169
- 239000003546 flue gas Substances 0.000 title claims abstract description 169
- 238000005070 sampling Methods 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title abstract description 11
- 239000007789 gas Substances 0.000 claims abstract description 6
- 239000000779 smoke Substances 0.000 claims description 42
- 238000005259 measurement Methods 0.000 abstract description 12
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 23
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 18
- 229910021529 ammonia Inorganic materials 0.000 description 9
- 238000005507 spraying Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- MGWGWNFMUOTEHG-UHFFFAOYSA-N 4-(3,5-dimethylphenyl)-1,3-thiazol-2-amine Chemical compound CC1=CC(C)=CC(C=2N=C(N)SC=2)=C1 MGWGWNFMUOTEHG-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Inorganic materials O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- WWILHZQYNPQALT-UHFFFAOYSA-N 2-methyl-2-morpholin-4-ylpropanal Chemical compound O=CC(C)(C)N1CCOCC1 WWILHZQYNPQALT-UHFFFAOYSA-N 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 101001121408 Homo sapiens L-amino-acid oxidase Proteins 0.000 description 1
- 102100026388 L-amino-acid oxidase Human genes 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/22—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution
- F16K3/24—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with sealing faces shaped as surfaces of solids of revolution with cylindrical valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/34—Arrangements for modifying the way in which the rate of flow varies during the actuation of the valve
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to a flue gas flow adjusting device, sampling pipe and flow adjusting method, among the flue gas flow adjusting device, it comprises a flow gas sampling pipe, a fixing part and a plugging part. The flow gas sampling pipe comprises the main pipe and the branch pipe. The fixing part is used to fix the opening end of the main pipe. The plugging part is inserted into the main pipe through the main pipe, it is actively connected to one end of the fixing part. The flue gas flow in the flue gas sampling pipe can be controlled, so that the flue gas flow in each pipe is the same, which improves the accuracy of the flue gas measurement results, it is convenient for staff to avoid environmental pollution while fully denitrification.
Description
The flue gas flow adjusting device, sampling pipe and flow adjusting U504041 method
The present invention relates to the technical field of the flue gas control of denitrification system of coal fired boiler, especially, it relates to the flue gas flow adjusting device, sampling pipe and flow adjusting method.
Background technology
In the denitrification system of the coal fired boiler, the flue gas produced contains nitric smoke, which is mainly a gas mixture of nitric oxide and nitrogen dioxide, and mainly nitrogen dioxide, it is necessary to carry out the denitrification link, ammonia spraying treatment is applied to the flue gas, ammonia water is used as a reducing agent to react with nitrogen oxides to generate nitrogen and water.
However, in the existing flue gas denitrification system, the total amount of ammonia spraying needs to be controlled, if excessive ammonia spraying will cause ammonia escape, and the by-product ammonium hydrogen sulfate will pollute the environment and corrode the equipment, at the same time, if there is no sufficient ammonia spraying, the reaction of nitrogen oxides will be insufficient, resulting in extremely low denitrification efficiency of the flue gas, which cannot achieve the purpose of environmental protection and energy saving, therefore, it is necessary to measure the content of nitrogen oxides in flue gas in advance between ammonia spraying processes.
In order to measure the content of nitrogen oxides in flue gas, the flue gas is generally sampled by setting up a flue gas sampling pipe, among them, several branch pipes are arranged in the flue gas sampling pipe, and the flue gas in each branch pipe is sampled separately to ensure the accuracy of the measurement results. However, when the differential pressure of the air preheater changes, the extraction pressure of the flue gas will also change, resulting in changes in the flue gas flow and thus affecting the flue gas concentration. The design idea of the existing flue gas sampling pipe is mainly to control the flow through the variable diameter design of the flue gas sampling pipe, the diameter of the flue gas sampling pipe from far to near gradually changes from thick to thin, there is no professional flue gas flow regulation control; in the actual use process, due to the frequent change of the boiler load, resulting the flue gas flow in each branch pipe is different, thus, the concentration of flue gas sampled from each branch pipe has a large difference, as a result, the final measurement results are inaccurate.
Therefore, the current flue gas sampling pipe has poor ability to regulate flue gas flow, and cannot satisfy the needs of flue gas measurement.
Summary of the invention LU504041
In order to solve the poor ability of the current flue gas sampling pipe to adjust the flue gas flow, and it cannot satisfy the needs of flue gas measurement, the present invention provides the flue gas flow adjusting device, sampling pipe and flow adjusting method.
The flue gas flow adjusting device provided to achieve the object of the present invention, comprising the flow gas sampling pipe comprises the main pipe and the branch pipe; one end of the main pipe is an opening structure; the axis of the branch pipe is perpendicular to each other with the axis of the main pipe, one end is connected to the outer wall of the opening end of the main pipe, and the interior is connected to the interior of the main pipe; the fixing part, the fixing part is used to fix the opening end of the main pipe; the plugging part is inserted into the main pipe through the main pipe, it is actively connected to one end of the fixing part; the plugging part can move along the axis direction of the main pipe, to change the size of the connecting cavity inner side of the main pipe and the branch pipe.
In some of these specific embodiments, the fixing part comprises the cover plate, one side of the cover plate can be snapped with the opening end of the main pipe; the adjusting rod, the adjusting rod is disposed in the middle of the side where the cover plate can be snapped with the opening end of the main pipe, the adjusting rod is far away the one end of the cover plate that is penetrated in the inside of the plugging part.
In some of these specific embodiments, the cover plate comprises the clamp, the clamp is used to snap with the opening end of the main pipe; the chuck,one end of the chuck is fixedly connected with the clamp, and the chuck and the clamp are directly opposite to each other;one end of the adjusting rod is connected to the middle of the chuck that is close to one side of the clamp.
In some of these specific embodiments, the chuck is provided with the lifting lug in the middle of the side away from the clamp; the adjusting rod is penetrated to the chuck, and it is rotated and connected with the lifting lug.
In some of these specific embodiments, the hoisting ring of the lifting lug is connected with the side of the chuck through a connecting chain.
In some of these specific embodiments, the gasket is arranged around the inner side of the clamp, the gasket is used to separate the clamp from the main pipe.
In some of these specific embodiments, the plugging part is a rotary piston; the adjusting rod is penetrated to the one end of the rotary piston away from the one end of the cover plate, and the rotary piston is rotated and connected with the adjusting rod, the rotary piston can reciprocate along the body length direction of the adjusting rod.
In some of these specific embodiments, one end of the rotary piston is provided with a first plug that is close to the cover plate, the first plug is used to close the one end of the rotary piston;
the adjusting rod is rotated and connected with the rotary piston through a screw nut in the middH64041 of the first plug; one end of the rotary piston is provided with a second plug away from the cover plate, the second plug is used to close the one end of the rotary piston; one end of the second plug is an arc-shaped structure away from the rotary piston, the arc-shaped structure of the second plug is used to buffer the impact of flue gas.
The flue gas sampling pipe based on the same idea, comprising the main pipe, the main pipe is used for flue gas passing through, one end of the main pipe is provided with a smoke outlet; the branch pipe, there are multiple branch pipes, one end of the branch pipe is respectively provided with the smoke inlet, the smoke inlet of the branch pipe is respectively connected with the outer wall of the smoke outlet of the main pipe, and its interior is connected with the interior of the main pipe, and the axes of the branch pipes are perpendicular to the axes of the main pipe; the flue gas flow adjusting device as described in any of the above specific embodiments, there are multiple the flue gas flow adjusting devices, and the multiple flue gas flow adjusting devices correspond to the multiple branch pipes one by one, the flue gas flow adjusting device is inserted into the main pipe along the axis direction of the main pipe by the smoke outlet of the main pipe, the smoke inlet of the branch pipe is plugged by the flue gas flow adjusting device.
The flue gas flow regulation method based on the same idea comprises the following steps:
S100: the flue gas flow through each of the branch pipe is measured;
S200: according to the measured flow of flue gas flowing through each branch pipe, the position of the rotary piston in each flue gas flow adjusting device is adjusted respectively, so that the rotary piston moves to a suitable position along the length direction of the adjusting rod and the smoke inlet of the branch pipe is plugged, to control the flow of flue gas flowing into the branch pipe;
S300 : continue to adjust the position of the rotary piston in each flue gas flow adjusting device, so that the flow of flue gas flowing into each branch pipe is the same.
The present invention has the following beneficial effects:
The utility model of the flue gas flow adjusting device, the flue gas flow adjusting device is fixedly connected with the opening end of the main pipe of the flue gas sampling pipe through the fixing part, the plugging part connected to the fixing part can be inserted into the main pipe through the opening end of the main pipe, the plugging part can move along the axis direction of the main pipe, plugging the branch pipe to a certain extent, and then change the size of the internal connecting cavity between the main pipe and the branch pipe, so that the purpose of controlling the flue gas flow can be achieved. The flue gas sampling pipe has simple structure, the installation is convenient ,and the manufacturing cost is low, it can quickly control the flue gas flow in the flue gas sampling pipe, so that the flue gas flow in each branch pipe of the flue gas sampling pipe is the same, thus it can satisfy the needs of measuring the content of nitrogen oxides in the sampléd/564041 the flue gas and improves the accuracy of the measurement results, and makes it easier for the staff to control the amount of ammonia injection; it can fully denitrification at the same time, can avoid environmental pollution and improve denitrification efficiency.
The utility model of the flue gas sampling pipe, the flue gas sampling pipe is equipped with a flue gas flow adjusting device between the smoke outlet of the main pipe and the smoke inlet of multiple branch pipes, after the plugging part of the flue gas flow adjusting device can move along the axis direction of the main pipe to plug the smoke inlet of the branch pipe to a certain extent, and then change the size of the connecting cavity between the main pipe and the branch pipe, so as to adjust the flue gas flow in each branch pipe, so that the flue gas flow in each branch pipe is the same, it satisfied the needs of measuring the content of nitrogen oxides in the sampled of the flue gas and improves the accuracy of the measurement results, and makes it easier for the staff to control the amount of ammonia injection; it can fully denitrification at the same time, can avoid environmental pollution and improve denitrification efficiency.
The utility model of the flue gas flow regulation method, according to the measured flue gas flow, the position of the rotary piston in each flue gas flow adjusting device is rotated, so that the rotary piston moves to the appropriate position along the length direction of the adjusting rod and the smoke inlet of the branch pipe is plugged to a certain extent, and then the size of the main pipe and the internal connecting cavity with each branch pipe is changed, so as to adjust the flue gas flow in each branch pipe, so that the flue gas flow in each branch pipe is the same, it can satisfy the needs of measuring the content of nitrogen oxides in the sampled of the flue gas and improves the accuracy of the measurement results, and makes it easier for the staff to control the amount of ammonia injection; it can fully denitrification at the same time, can avoid environmental pollution and improve denitrification efficiency, moreover, the adjustment method is simple to operate and does not require too much manpower.
Description of attached drawings
Fig 1 is a schematic diagram of the structure of some specific embodiments of the flue gas flow adjusting device in the present invention;
FIG 2 is a schematic diagram of the structure of some specific embodiments of the flue gas sampling pipe in the present invention;
FIG 3 is a partial enlarged of the flue gas sampling pipe shown in FIG 2;
FIG 4 is a flow chart of the structure of some specific embodiments of the flue gas flow adjusting device in the present invention.
In the attached drawings, 100. fixing part; 110. cover plate; 111. clamp; 112.chuck; 120. adjusting rod; 130. lifting lug; 140. connecting chain 200. plugging part; 210. rotary piston; 220. the first plug; 230; the second plug; 300. main pipe; 310; smoke outlet; 400. branch pipe; 410; sthidk64041 inlet.
Specific embodiments
The following will be combined with the accompanying drawings in the examples of the 5 present invention, the technical solutions in the examples of the present invention will be clearly and completely described, it is clear that the described examples are only a part of the examples of the present invention, and not all of the examples.
Examples of embodiments described in are shown in the attached drawings, from beginning to end the same or similar symbols represent the same or similar components or components with the same or similar functions. The embodiments described below by reference to the attached drawings are illustrative and intended to explain the present invention, but cannot be understood as limitations to the present invention.
In the description of the present invention, it is necessary to understand that the terms “top”, “bottom”, “inner”, “outer”, “axis”, “circumference” etc. are based on the orientation or position relationship shown in the attached drawings, it is only to facilitate the description of the present invention or to simplify the description, but it is not to indicate or imply that the device or element referred to must have a particular orientation, it should be constructed and operated in a particular orientation, and therefore, it cannot be understood as a limitation to the present invention.
In addition, The terms "first" and "second" is used only for descriptive purposes, and they can not be understood as indicating or implying the relative importance or implicitly indicating the number of technical features indicated. Thus, limited to the "first" and "second”features can explicitly or implicitly include one or more of these features. In the description of the present invention, unless otherwise specified, "multiple"means two or more.
In the present invention, unless otherwise expressly specified and limited, the terms “installed”, “linked”, “connected” “fixed”,“cohesive”, “hinged” should be understood in a broad sense, for example, it can be a fixed connection, a removable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly through an intermediate medium, or it can be a connection between the inside of two elements. For these ordinary technicians in this field, the specific meaning of the above terms in the present invention can be understood according to the specific situation.
Due to the traditional design idea of flue gas sampling pipe is generally to achieve the purpose of controlling flue gas flow through variable diameter design, but, there is no actual logical correspondence between the change of pipe diameter and the extraction pressure of flue gas; in practical use, due to the frequent change of boiler load, the flue gas flow in each branch pipe of flue gas sampling pipe is different, and the flue gas sampled cannot satisfy the needs of flue gas content measurement. LU504041
Therefore, the present invention designs the flue gas flow adjustment device that can be fixed between the main pipe and the branch pipe of the flue gas sampling pipe, which can plug the flue gas sampling pipe, so that the flue gas flow of each branch pipe is the same, and the flue gas sampled can satisfy the demand of flue gas content measurement.
Refer to FIG1, 2 and 3, the flue gas flow adjusting device, comprising the flue gas sampling pipe, the fixing part 100 and plugging part 200. Among them, the flow gas sampling pipe comprises the main pipe 300 and the branch pipe 400. One end of the main pipe 300 is provided with a smoke outlet. The axis of the branch pipe 400 is perpendicular to each other with the axis of the main pipe 300, one end is connected to the outer wall of the opening end of the main pipe300, and the interior is connected to the interior of the main pipe 300. The fixing part 100 is used to fix the opening end of the main pipe 300. The plugging part 200 is inserted into the main pipe 300 through the main pipe 300, it is actively connected to one end of the fixing part 100. The plugging part 200 can move along the axis direction of the main pipe 300, to change the size of the connecting cavity inside the main pipe 300 and the branch pipe 400.
Specifically, one end of the main pipe 300 is an opening structure;one end of the branch pipe 400 is connected to the outer wall of the opening end of the main pipe 300, the axis of the branch pipe 400 is perpendicular to each other with the axis of the main pipe 300. The plugging part 200 is actively connected to one end of the fixing part 100, one end of the fixing part 100 is fixed to the opening end of the main pipe 300 away from the plugging part 200, when the opening end of the fixing part 100 and the main pipe 300 is fixed, the plugging part 200 can be inserted into the main pipe 300 along the axis direction of the main pipe 300. Moreover, the plugging part 200 can move along the axis direction of the main pipe 300, when the flue gas flow in the branch pipe 400 in the flue gas sampling pipe needs to be adjusted, the plugging part 200 can move along the axis direction of the main pipe 300 on the fixing part 100 until the plugging part 200 plugs the connection between the main pipe 300 and the branch pipe 400 to a certain extent, and changes the size of the internal connecting cavity between the main pipe 300 and the branch pipe 400, thereby limiting the flue gas flow in the branch pipe 400, if it is not necessary to adjust the flue gas flow in the branch pipe 400, the plugging part 200 can move in the opposite direction along the axis of the main pipe 300 on the fixing part 100 until the flue gas sampling pipe is completely unblocked.
In some specific embodiments of the present invention, the fixing part 100 comprises the cover plate 110 and the adjusting rod 120. One side of the cover plate 110 can be snapped with the opening end of the main pipe 300; The adjusting rod 120 is disposed in the middle of the side where the cover plate 110 can be snapped with the opening end of the main pipe 300, the adjusting rod 120 is far away the one end of the cover plate 110 that is penetrated in the inside of the plugging part 200. LU504041
Specifically, the fixing part 100 comprises the cover plate 110 and the adjusting rod 120. The cover plate 110 can be connected with the opening end of the main pipe 300 of the flue gas sampling pipe, and the opening end of the main pipe 300 can be sealed by the cover plate 110. To avoid smoke leakage and affect the sampling results. The adjusting rod 120 is perpendicular to the cover plate 110, and one end of the adjusting rod 120 is connected with the center position of the cover plate 110, when the cover plate 110 is snapped with the opening end of the main pipe 300, the adjusting rod 120 is just inside the main pipe 300, and the adjusting rod 120 extends along the axis direction of the main pipe 300. The end of the adjusting rod 120 is set at the blocking part 200 away from the cover plate 110 , so that the plugging part 200 can slide along the axis direction of the main pipe 300 on the adjusting rod 120, thus completing the plugging of the branch pipe 400 of the flue gas sampling pipe.
In some specific embodiments of the present invention, the cover plate 110 comprises the clamp 111 and the chuck112. The clamp 111 is used to snap with the opening end of the main pipe 300; One end of the chuck 112 is fixedly connected with the clamp 111, and the chuck 112 and the clamp 111 are directly opposite to each other; one end of the adjusting rod 120 is connected to the middle of the chuck 112 that is close to one side of the clamp 111.
Specifically, the cover plate 110 comprises the clamp 111 and the chuck112. The clamp 111 is a ring structure, the clamp 111 can be stuck to the opening end of the main pipe 300 of the flue gas sampling pipe, so that the inner wall of the clamp 111 and the outer wall of the main pipe 300 are stuck together. The chuck 112 is a circular cake-shaped structure, one side of the chuck 112 is directly connected to the other side of the clamp 111, when the clamp 111 is clamped to the opening end of the main pipe 300, the cooperation between the clamp 111 and the chuck 112 will plug the opening end of the main pipe 300, which avoids the flue gas leakage, thus affecting the measurement results of the flue gas content.
In some specific embodiments of the present invention, the chuck 112 is provided with the lifting lug 130 in the middle of the side away from the clamp 111. The adjusting rod 120 is penetrated to the chuck 112, and it is rotated and connected with the lifting lug 130.
Specifically, one side of the chuck 112 is provided with the lifting lug 130 away from the clamp 111, the thread hole on the lifting lug 130 is directly opposite to the center of the chuck 112, the outer surface of the adjusting rod 120 is provided with a male screw thread, the center position of the adjustment rod 120 is penetrated to the chuck 112 by the side of the chuck 112 close to the clamp 111, and the thread hole on the lifting lug 130 is rotated and connected with the lifting lug 130, furthermore the lifting lug 130 is fixedly connected with the chuck 112, meanwhile, it can also be firmly connected to the adjustment rod 120 and the chuck 112, the installation is simple and does not need manpower; moreover, if the adjusting rod 120 is damaged, the staff can easily comblt364041 the replacement of the adjusting rod 120, reducing the number of parts that need to be manufactured and saving manufacturing and maintenance costs.
In some specific embodiments of the present invention, the hoisting ring of the lifting lug 130 is connected with the side of the chuck 112 through the connecting chain 140.
Specifically, one side of the hoisting ring is provided with a threaded hole, the hoisting ring is connected with the chuck112 through the connecting chain 140, one end of the connecting chain 140 is connected to the side of the chuck 112, the other end of the connecting chain 140 is set on the hoisting ring, furthermore, the lifting lug 130 is connected to the side of the chuck 112, when the connection between the adjustment rod 120 and the lifting lug 130 appears loose, the lifting lug 130 will not fall off the flue gas flow regulating device, but will be hung on the chuck 112 through the connecting chain 140 to avoid the loss of parts.
In some specific embodiments of the present invention, the gasket is arranged around the inner side of the clamp 111, the gasket 111 is used to separate the clamp from the main pipe 300.
Specifically, the gasket is set on the inner side of the clamp 111, the gasket is surrounded by the inner side of the clamp 111, when the clamp 111 is connected with the opening end of the main pipe 300 of the flue gas sampling pipe, the gasket is located between the clamp 111 and the main pipe 300, and covers the outer wall of the main pipe 300, the clamp 111 is separated from the main pipe 300, on the other hand, by setting the gasket between the clamp 111 and the main pipe 300, the friction between the clamp 111 and the main pipe 300 is increased, so that the clamp 111 can be clamped with the main pipe 300, to avoid the clamp 111 falling, on the other hand, by setting the gasket between the clamp 111 and the main pipe 300, the gap between the clamp 111 and the main pipe 300 is filled, to further avoid smoke leakage, finally, by setting the gasket between the clamp 111 and the main pipe 300, the wear and tear of the contact position between the clamp 111 and the main pipe 300 caused by the direct contact between the outer wall of the clamp 111 and the main pipe 300 is avoided, and the service life of the clamp 111 and the main pipe 300 is improved.
In some specific embodiments of the present invention, the plugging part 200 is a rotary piston 210. The adjusting rod 120 is penetrated to the one end of the rotary piston 210 away from the one end of the cover plate 110, and the rotary piston 210 is rotated and connected with the adjusting rod 120 , the rotary piston 210 can reciprocate along the body length direction of the adjusting rod 120.
Specifically, one end of the rotary piston 210 is rotated and connected with the adjusting rod 120, on end of the adjusting rod 120 is penetrated to the interior of the rotary piston 210 away from the cover plate 110, the rotary piston 210 can reciprocate on the adjusting rod 120 in the direction of the body length of the adjusting rod 120, through this reciprocating motion, the rotary piston 210 can plug the branch pipe 400 of the flue gas sampling pipe to varying degrees, further, the sik&)64041 the connection position of the main pipe 300 and the branch pipe 400 is changed, so as to adjust the flue gas flow in the branch pipe 400.
In some specific embodiments of the present invention, one end of the rotary piston 210 is provided with the first plug 220 that is close to the cover plate 110, the first plug 220 is used to close the one end of the rotary piston 210. The adjusting rod 120 is rotated and connected with the rotary piston 210 through the screw nut in the middle of the first plug 220. One end of the rotary piston 210 is provided with the second plug 230 away from the cover plate 230, the second plug 230 is used to close the one end of the rotary piston 210. One end of the second plug 230 is an arc-shaped structure away from the rotary piston 210, the arc-shaped structure of the second plug 230 is used to buffer the impact of flue gas. Through the cooperation of the first plug 220 and the second plug 230, the rotary piston 210 is completely covered in the first plug 220 and the second plug 230, so as to avoid the flue gas passing through the gap caused by the gap in the rotary piston 210, and unable to achieve the plugging effect. In addition, the second plug 230 is an arc-shaped structure, which can buffer the flue gas extracted from the flue gas sampling pipe, so as to avoid the second plug 230 due to the direction of flue gas flow and the extraction pressure of the flue gas is too large, as a result, the second plug 230 is damaged under the impact of flue gas.
Refer to FIG 1, 2 and 3, the present invention also provides the flue gas sampling pipe, comprising the main pipe 300, the branch pipe 400, and the flue gas flow adjusting device in any of the above specific embodiments. The main pipe 300 is used for flue gas passing through, one end of the main pipe 300 is provided with a smoke outlet 310. There are multiple the branch pipes 400, one end of the branch pipe 400 is respectively provided with the smoke inlet 410, the smoke inlet 410 of the branch pipe 400 is respectively connected with the outer wall of the smoke outlet 310 of the main pipe 300, and its interior is connected with the interior of the main pipe 300, and the axes of the branch pipes 400 are perpendicular to the axes of the main pipe 300. There are multiple the flue gas flow adjusting devices, the multiple flue gas flow adjusting devices correspond to the multiple branch pipes 400 one by one, the flue gas flow adjusting device is inserted into the main pipe 300 along the axis direction of the main pipe 300 by the smoke outlet 310 of the main pipe 300, the smoke inlet 410 of the branch pipe 400 is plugged by the flue gas flow adjusting device.
Specifically, one end of the main pipe 300 is provided with the smoke outlet 310, and one end of the branch pipe 400 is provided with the smoke inlet 410, the outer wall of the smoke outlet 310 of the main pipe 300 is fixedly connected with the smoke inlet 410 of multiple branch pipes 400, so that the axis of the main pipe 300 is perpendicular to the axis of each branch pipe 400, and the flue gas flowing through the main pipe 300 flows into each branch pipe 400. Each flue gas flow adjusting device is set between the smoke inlet 410 of the corresponding branch pipe 400 and the smoke outlet 310 of the main pipe 300 through the smoke outlet 310 of the main pipeLBG604041 respectively, the flue gas flow adjusting device is inserted into the main pipe 300 from the smoke outlet 310 of the main pipe 300 along the axis direction of the main pipe 300. When it is necessary to adjust the flue gas flow in the branch pipe 400, the rotary piston 210 in the flue gas flow adjusting device can move outward along the axis direction of the main pipe 300 and plug the smoke inlet 410 of the branch pipe 400 to a certain extent, thus, the flue gas flow in the branch pipe 400 is limited.
Refer to FIG 1, 2 , 3 and 4, the present invention also provides the flue gas flow adjusting method, comprising the following step:
S100: the flue gas flow through each of the branch pipe is measured 400.
The flow of flue gas in each branch pipe 400 in the flue gas sampling pipe is monitored in real time, to check whether the flow of flue gas in each branch pipe 400 is the same.
S200 : according to the measured flow of flue gas flowing through each branch pipe 400, the position of the rotary piston 210 in each flue gas flow adjusting device is adjusted respectively, so that the rotary piston 210 moves to a suitable position along the length direction of the adjusting rod 120 and the smoke inlet 410 of the branch pipe 400 is plugged, to control the flow of flue gas flowing into the branch pipe 400.
If the measured flow of flue gas through each branch pipe 400 is not the same, it is necessary to adjust the position of the rotary piston 210, and the smoke inlet 410 of each branch pipe 400 is plugged to varying degrees, if the flow of flue gas of the branch pipe 400 is too large, the rotary piston 210 will move away from the chuck 112 in the direction of the body length of the adjusting rod 120, and increase the plugging area of the rotary piston 210 to the smoke inlet 410 of each branch pipe 400, thus increasing the flue gas flow in the branch pipe 400, if the flue gas flow of the branch pipe 400 is too small, then the rotary piston 210 moves along the body length direction of the adjusting rod 120 to the direction close to the chuck 112, reducing the plugging area of the rotary piston 210 to the smoke inlet 410 to the branch pipe 400, thereby reducing the flue gas flow in the branch pipe 400.
S300 : continue to adjust the position of the rotary piston 210 in each flue gas flow adjusting device, so that the flow of flue gas flowing into each branch pipe 400 is the same.
Continue to fine-tune the position of the rotary piston 210, so that the flue gas flow between each branch pipe 400 is the same or the difference is small, the smaller the difference in flue gas flow between each branch pipe 400 , the more accurate the measurement results of the flue gas content sampled from the branch pipe 400 .
In the description of this specification, the reference terms “an embodiment ”, “some embodiments ”, “ examples ”, “ specific examples ”, “a specific embodiment “or “some examples ”,
etc. they are described to mean that the specific features, structures, materials or characteristl564041 described in combination with the embodiment or example are contained in at least one embodiment or example of the invention. In this specification, the indicative expressions of terms do not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.
The above mentioned is only a better specific embodiment of the present invention, but the scope of protection of the present invention is not limited to this. Any technician familiar with the field of technology is exposed to the present invention within the scope of technology; according to the technical solutions of the present invention, and the conception of the invention to be equivalent replacement or change, should be covered within the scope of protection of the present invention.
Claims (10)
1. À flue gas flow adjusting device, it is characterized by the comprising: the flow gas sampling pipe comprises the main pipe and the branch pipe; one end of the main pipe is an opening structure; the axis of the branch pipe is perpendicular to each other with the axis of the main pipe, one end is connected to the outer wall of the opening end of the main pipe, and the interior is connected to the interior of the main pipe; the fixing part, the fixing part is used to fix the opening end of the main pipe; the plugging part is inserted into the main pipe through the main pipe, it is actively connected to one end of the fixing part; the plugging part can move along the axis direction of the main pipe, to change the size of the connecting cavity inside the main pipe and the branch pipe.
2. The flue gas flow adjusting device according to claim 1, among the fixing part comprises: a cover plate, one side of the cover plate can be snapped with the opening end of the main pipe; an adjusting rod, the adjusting rod is disposed in the middle of the side where the cover plate can be snapped with the opening end of the main pipe, the adjusting rod is far away the one end of the cover plate that is penetrated in the inside of the plugging part.
3. The flue gas flow adjusting device according to claim 2, among the cover plate comprises: a clamp, the clamp is used to snap with the opening end of the main pipe; a chuck, one end of the chuck is fixedly connected with the clamp, and the chuck and the clamp are directly opposite to each other; one end of the adjusting rod is connected to the middle of the chuck that is close to one side of the clamp.
4. The flue gas flow adjusting device according to claim 3, among the chuck is provided with a lifting lug in the middle of the side away from the clamp; the adjusting rod is penetrated to the chuck, and it is rotated and connected with the lifting lug.
5. The flue gas flow adjusting device according to claim 4, among the hoisting ring of the lifting lug is connected with the side of the chuck through a connecting chain. 79504041
6. The flue gas flow adjusting device according to claim 4, among a gasket is arranged around the inner side of the clamp, the gasket is used to separate the clamp from the main pipe.
7. The flue gas flow adjusting device according to claim 2, among the plugging part is a rotary piston; the adjusting rod is penetrated to the one end of the rotary piston away from the one end of the cover plate, and the rotary piston is rotated and connected with the adjusting rod, the rotary piston can reciprocate along the body length direction of the adjusting rod.
8. The flue gas flow adjusting device according to claim 7, among them, one end of the rotary piston is provided with a first plug that is close to the cover plate, the first plug is used to close the one end of the rotary piston; the adjusting rod is rotated and connected with the rotary piston through a screw nut in the middle of the first plug; one end of the rotary piston is provided with a second plug away from the cover plate, the second plug is used to close the one end of the rotary piston; one end of the second plug is an arc-shaped structure away from the rotary piston, the arc-shaped structure of the second plug is used to buffer the impact of flue gas.
9. The flue gas sampling pipe, it is characterized by the comprising: the main pipe, the main pipe is used for flue gas passing through, one end of the main pipe is provided with a smoke outlet; the branch pipe, there are multiple the branch pipes, one end of the branch pipe is respectively provided with a smoke inlet, the smoke inlet of the branch pipe is respectively connected with the outer wall of the smoke outlet of the main pipe, and its interior is connected with the interior of the main pipe, and the axes of the branch pipes are perpendicular to the axes of the main pipe; as for the flue gas flow adjusting device described in any one of the claims 1 to 8, there are multiple the flue gas flow adjusting devices, and the multiple flue gas flow adjusting devices correspond to the multiple branch pipes one by one, the flue gas flow adjusting device is inserted into the main pipe along the axis direction of the main pipe by the smoke outlet of the main pipe, the smoke inlet of the branch pipe is plugged by the flue gas flow adjusting device.
10. The flue gas flow adjusting device, it is characterized by the following step: 0506061
S100: the flue gas flow through each of the branch pipe is measured;
S200: according to the measured flow of flue gas flowing through each branch pipe, the position of the rotary piston in each flue gas flow adjusting device is adjusted respectively, so that the rotary piston moves to a suitable position along the length direction of the adjusting rod and the smoke inlet of the branch pipe is plugged, to control the flow of flue gas flowing into the branch pipe;
S300 : continue to adjust the position of the rotary piston in each flue gas flow adjusting device, so that the flow of flue gas flowing into each branch pipe is the same.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310209251.XA CN116398656A (en) | 2023-03-01 | 2023-03-01 | Flue gas flow regulating device, sampling pipeline and flow regulating method |
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| Publication Number | Publication Date |
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| LU504041B1 true LU504041B1 (en) | 2023-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504041A LU504041B1 (en) | 2023-03-01 | 2023-04-23 | The flue gas flow adjusting device, sampling pipe and flow adjusting method |
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|---|---|
| CN (1) | CN116398656A (en) |
| LU (1) | LU504041B1 (en) |
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2023
- 2023-03-01 CN CN202310209251.XA patent/CN116398656A/en active Pending
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