CN115628949B - Fly ash sampling device for boiler flue - Google Patents
Fly ash sampling device for boiler flue Download PDFInfo
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- CN115628949B CN115628949B CN202211218238.2A CN202211218238A CN115628949B CN 115628949 B CN115628949 B CN 115628949B CN 202211218238 A CN202211218238 A CN 202211218238A CN 115628949 B CN115628949 B CN 115628949B
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- fly ash
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- 238000005070 sampling Methods 0.000 title claims abstract description 113
- 239000010881 fly ash Substances 0.000 title claims abstract description 48
- 238000000926 separation method Methods 0.000 claims abstract description 17
- 239000000779 smoke Substances 0.000 claims description 33
- 238000005192 partition Methods 0.000 claims description 13
- 230000001681 protective effect Effects 0.000 claims description 5
- 230000004323 axial length Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 claims 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 10
- 239000003546 flue gas Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 206010022000 influenza Diseases 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
-
- 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
-
- 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
- G01N2001/227—Sampling from a flowing stream of gas separating gas from solid, e.g. filter
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Molecular Biology (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The application discloses a fly ash sampling device for a boiler flue, which comprises a positioning unit, a sampling unit and a separation unit, wherein the positioning unit is arranged on the side wall of the boiler flue and comprises a positioning cylinder, a positioning guard plate arranged at one end of the positioning cylinder and a positioning piece arranged at the other end of the positioning cylinder; the sampling unit is inserted into the sampling port in a matched manner and comprises a sampling tube and a hand piece arranged at the end part of the sampling tube; the separation unit is matched and inserted into the sampling tube; according to the application, the placement position of the sampling unit is limited by the positioning unit, the sampling unit can be protected, the sampling unit has a simple structure, the sampling operation matched with the positioning unit is convenient, and multiple samples can be simultaneously taken by placing the separation unit in the sampling tube, so that the fairness of sampling is maintained, and the existing fly ash sampling difficulty is greatly simplified.
Description
Technical Field
The application relates to the technical field of flue fly ash sampling, in particular to a fly ash sampling device for a boiler flue.
Background
In a thermal power plant, thermal power generation is generally performed using coal as fuel, and a boiler is a place where coal is burned. In the combustion process of the boiler, the carbon content of the fly ash in the flue gas is one of the main indexes of the combustion efficiency of the coal-fired boiler of the power plant, the carbon content of the fly ash in the boiler is an important reference means and a basis for the combustion control efficiency of the boiler, and the carbon content of the fly ash is also an important means for improving the efficiency of the boiler.
To monitor the combustible content of the boiler fly ash, the fly ash in the boiler needs to be sampled and tested periodically. The fly ash sampling device for the boiler of the thermal power plant comprises a sampling box, an air bag, an air inlet pipe, a first one-way valve, a second one-way valve, a sampling box, a pressing hole, a pressing rod, a driving motor, a coupler, a cam, a nozzle, an ash collecting box and a filter screen, wherein the fly ash sampling device is formed by components. And thus is not suitable for existing fly ash sampling requirements, for which improvements are needed.
Disclosure of Invention
This section is intended to outline some aspects of embodiments of the application and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section as well as in the description of the application and in the title of the application, which may not be used to limit the scope of the application.
The present application has been made in view of the above-mentioned problems with the existing fly ash sampling devices for boiler flues.
Therefore, the application aims to provide a fly ash sampling device for a boiler flue, and aims to solve the problems of complex structure, complex operation and high cost of the existing fly ash sampling device.
In order to solve the technical problems, the application provides the following technical scheme: the fly ash sampling device for the boiler flue comprises a positioning unit, a sampling unit and a separation unit, wherein the positioning unit is arranged on the side wall of the boiler flue and comprises a positioning cylinder, a positioning guard plate arranged at one end of the positioning cylinder and a positioning piece arranged at the other end of the positioning cylinder; the sampling unit is inserted into the sampling port in a matched manner and comprises a sampling tube and a hand piece arranged at the end part of the sampling tube; and the separation unit is matched and inserted into the sampling tube.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the side wall of one end of the positioning cylinder, which is far away from the positioning guard plate, is provided with a mounting ring groove and a limiting hole, and the limiting hole is positioned at one end of the mounting ring groove, which is far away from the positioning guard plate; the limiting hole penetrates through the side wall of the positioning cylinder and is communicated with the outer part and the inner ring of the positioning cylinder, and the limiting column is slidably arranged in the limiting hole.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the axial length of the limiting column is greater than that of the limiting hole; at least two groups of limit posts are symmetrically distributed; the end part of the limiting column is hemispherical, the diameter of a sphere at the end part of the limiting column is larger than the aperture of the limiting hole, and the end part of the limiting column can extend out of the limiting hole.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the positioning guard plate is positioned on an axial normal line of the positioning cylinder, and the projection area of the positioning guard plate on the axial normal line is larger than that of the positioning cylinder; the positioning guard plate can be attached to the side wall of the boiler flue.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the locating piece comprises an outer sleeve, a flange arranged on the inner side wall of the outer sleeve and a reset spring connected to the side wall of the flange.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the outer sleeve is sleeved outside the mounting ring groove, and one end of the return spring, which is far away from the flange, is connected to the side wall of the groove cavity of the mounting ring groove; the outer sleeve can cover the outer part of the limiting hole.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the sampling tube comprises a tube body, and a smoke inlet and a smoke outlet which are formed in the side wall of the tube body; the side wall of the end part of the cylinder body is provided with external threads.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the deflection degree of the smoke inlet and the smoke outlet in the axial normal direction of the cylinder body is distributed, and the interval is not less than 30 cm. The gas inlets and the gas outlets are arranged in groups, a plurality of groups of gas inlets are distributed at equal intervals, the gas inlets are distributed on the same straight line, and the gas outlets are distributed on the same straight line.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the hand piece comprises a protective disc, a connecting pipe arranged at one end of the protective disc and a handle at the other end of the protective disc; an inner ring of the connecting pipe is internally provided with an inner thread, and the outer thread can be matched with the inner thread; the connecting pipe can be matched and inserted into the inner ring side wall of the positioning cylinder, positioning holes are distributed on the outer side wall of the connecting pipe, and the end part, extending out of the positioning holes, of the limiting column can be embedded into the positioning holes; the locating holes are arranged in one-to-one correspondence with the limit posts.
As a preferred embodiment of the fly ash sampling device for a boiler flue according to the present application, wherein: the separation unit comprises at least 1 separation cylinder, and the separation cylinder comprises a baffle plate and connecting rods distributed on two sides of the baffle plate; the interval between adjacent partition boards is equal to the interval between adjacent smoke inlets.
The application has the beneficial effects that:
according to the application, the placement position of the sampling unit is limited by the positioning unit, the sampling unit can be protected, the sampling unit has a simple structure, the sampling operation matched with the positioning unit is convenient, and multiple samples can be simultaneously taken by placing the separation unit in the sampling tube, so that the fairness of sampling is maintained, and the existing fly ash sampling difficulty is greatly simplified.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:
FIG. 1 is a schematic view of the installation location of the fly ash sampling device for a boiler flue according to the present application.
FIG. 2 is a schematic view of the overall structure of the fly ash sampling device for boiler flue according to the present application.
FIG. 3 is a schematic view of a specific connection structure of the fly ash sampling device for boiler flue according to the present application.
FIG. 4 is a schematic view showing a semi-sectional structure of the fly ash sampling device for a boiler flue according to the present application.
Fig. 5 is a schematic view of a partial F enlarged structure of the fly ash sampling device for boiler flue according to the present application.
Detailed Description
In order that the above-recited objects, features and advantages of the present application will become more readily apparent, a more particular description of the application will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
Further, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic can be included in at least one implementation of the application. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Further, in describing the embodiments of the present application in detail, the cross-sectional view of the device structure is not partially enlarged to a general scale for convenience of description, and the schematic is only an example, which should not limit the scope of protection of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in actual fabrication.
Example 1
Referring to fig. 1 to 5, for a first embodiment of the present application, there is provided a fly ash sampling device for a boiler flue, the sampling device comprising a positioning unit 100, a sampling unit 200 and a separation unit 300, wherein the positioning unit 100 is mounted on an outer sidewall of the boiler flue D for positioning and mounting the sampling unit 200, and the sampling unit 200 is used for extending into the boiler flue D to collect a fly ash sample from the flue gas; the separation unit 300 is used for separating the sampling tubes in the sampling unit 200, so as to collect multiple groups of fly ash samples at the same time.
Specifically, the positioning unit 100 is arranged on the side wall of the boiler flue D, and comprises a positioning cylinder 101, a positioning guard plate 102 arranged at one end of the positioning cylinder 101, and a positioning piece 103 arranged at the other end of the positioning cylinder 101; the positioning cylinder 101 is used for positioning and installing the sampling cylinder 201, and the positioning guard plate 102 is used for contacting with the side wall of the boiler flue D, so that the protection of the positioning cylinder 101 and the hand piece 202 is improved; the positioning member 103 is used for limiting the positioning of the sampling unit 200 so as to present a predetermined placement state.
The sampling unit 200 is inserted into the sampling port 101 in a matching way and comprises a sampling tube 201 and a hand piece 202 arranged at the end part of the sampling tube 201; the sampling tube 201 is used for sampling from the boiler flue D, and the hand piece 202 is used for holding by a worker, so that the high-temperature scalding in the sampling tube 201 is prevented.
The separation unit 300 is inserted into the sampling tube 201 in a matching way; which serves to separate the lumens of the sampling cartridge 201 and thus the multiple sets of sampling spaces therein.
Example 2
Referring to fig. 2 to 5, a second embodiment of the present application is different from the first embodiment in that: a mounting ring groove 101a and a limiting hole 101b are formed in the side wall of one end, far away from the positioning guard plate 102, of the positioning cylinder 101, and the limiting hole 101b is positioned at one end, far away from the positioning guard plate 102, of the mounting ring groove 101 a; the limiting hole 101b penetrates through the side wall of the positioning barrel 101 and is communicated with the outside of the positioning barrel 101 and the inner ring, and the limiting column 101c is placed in the limiting hole 101b in a sliding mode.
The axial length of the limiting post 101c is greater than that of the limiting hole 101 b; at least two groups of limit posts 101c are symmetrically distributed; the end of the limiting column 101c is hemispherical, the diameter of a sphere at the end of the limiting column 101c is larger than the aperture of the limiting hole 101b, and the end of the limiting column 101c can extend out of the limiting hole 101b.
The positioning guard plate 102 is positioned on the axial normal line of the positioning cylinder 101, and the projection area of the positioning guard plate on the axial normal line is larger than that of the positioning cylinder 101; the positioning shield 102 can be attached to the side wall of the boiler flue D.
The positioning member 103 includes an outer sleeve 103a, a flange 103b provided on an inner side wall of the outer sleeve 103a, and a return spring 103c connected to a side wall of the flange 103 b.
The outer sleeve 103a is sleeved outside the mounting ring groove 101a, and one end of the return spring 103c, which is far away from the flange 103b, is connected to the side wall of the groove cavity of the mounting ring groove 101 a; the outer sleeve 103a can cover the outside of the limiting hole 101b.
Compared with the embodiment 1, further, the end of the positioning cylinder 101 is integrally connected with the side wall of the positioning guard plate 102 and penetrates through the hole with the insertion connection, so that the insertion connection of the sampling cylinder 201 can be adapted; the mounting ring groove 101a on the side wall of the positioning cylinder 101 is used for mounting the positioning piece 103, and the limiting hole 101b is used for mounting the limiting column 101c. The spacing posts 101c are arranged in pairs, each two of the spacing posts are in a group and are distributed relatively, namely, the spacing posts are 180 degrees apart, and in the scheme, 4 limiting holes 101b are distributed at equal intervals of 90 degrees.
The two axial ends of the limiting column 101c are hemispherical, and the opening aperture of the limiting hole 101b is smaller than the maximum radial diameter of the sphere, so that the limiting column 101c is always limited in the limiting hole 101b, but the end part of the limiting column 101c can extend out of the limiting hole 101b. The end part of the limit column 101c extending out of the limit hole 101b is matched with the positioning hole 202b-1, so that the limitation of the placing state of the sampling tube 201 is realized.
Further, the outer sleeve 103a of the positioning member 103 can be sleeved outside the limiting hole 101c and can be in contact with the end of the limiting post 101c, and the position of the limiting post 101c in the limiting hole 101b can be limited by changing the placement position of the outer sleeve 103 a. The return spring 103c is used for resetting the position of the outer sleeve 103 a.
The rest of the structure is the same as that of embodiment 1.
Example 3
Referring to fig. 2 to 4, a third embodiment of the present application is different from the second embodiment in that: the sampling tube 201 comprises a tube 201a, and a smoke inlet 201b and a smoke outlet 201c which are arranged on the side wall of the tube 201 a; the end side wall of the cylinder 201a has external threads.
The flue gas inlet 201b and the flue gas outlet 201c deflect 90 degrees in the axial normal direction of the cylinder 201a, and the interval is not less than 30 cm. The smoke inlet 201b and the smoke outlet 201c are arranged in groups, a plurality of groups of smoke inlets 201b and smoke outlets 201c are distributed at equal intervals, the smoke inlets 201b are distributed on the same straight line, and the smoke outlets 201c are distributed on the same straight line.
The hand piece 202 includes a shield plate 202a and a connection tube 202b provided at one end of the shield plate 202a, and a handle 202c at the other end; the inner ring of the connecting pipe 202b is provided with an inner thread, and the outer thread can be matched with the inner thread; the connecting pipe 202b can be matched and inserted into the inner ring side wall of the positioning cylinder 101, positioning holes 202b-1 are distributed on the outer side wall of the connecting pipe 202b, and the end part of the limiting column 101c extending out of the limiting hole 101b can be embedded into the positioning hole 202 b-1; the positioning holes 202b-1 are arranged in one-to-one correspondence with the limit posts 101c.
Compared with the embodiment 2, further, the sampling tube 201 is supported by a 304 stainless steel tube with one end closed, the length of the sampling tube can be set by the radial diameter of the actual boiler flue D, and the flue gas inlet 201b and the flue gas outlet 201c are respectively formed on the side wall of the tube body of the sampling tube 201. During sampling operation, the smoke inlet 201b faces the smoke direction, and the smoke outlet 201c is perpendicular to the flow direction of the smoke; when not sampling, the sampling tube 201 rotates 180 degrees, the smoke inlet 201b faces away from the flow direction of the smoke, and the smoke outlet 201c faces upwards.
The hand piece 202 is used for being held by a worker to take the sampling tube 201. The particular shield disc 202a is used for shielding, and the handle 202c is a particular hand-held portion. The connecting pipe 202b has the same maximum radial diameter as the sampling tube 201, the connecting pipe 202b and the sampling tube 201 can be assembled into a whole through threads at the end part, and the positioning hole 202b-1 in the outer side wall of the connecting pipe 202b can be matched with the limit column 101c to form a positioning structure, so that the sampling tube 201 is kept in a set placement state.
The rest of the structure is the same as that of embodiment 2.
Example 4
Referring to fig. 4, a fourth embodiment of the present application is shown, which differs from the third embodiment in that: the partition unit 300 includes not less than 1 partition cylinders 301, and the partition cylinders 301 include a partition plate 301a and connecting rods 301b distributed on both sides of the partition plate 301 a; the interval between adjacent partitions 301a is equal to the interval between adjacent smoke inlets 201 b.
Further, compared with embodiment 3, the partition unit 300 is formed by combining a plurality of groups of partition cylinders 301, and two partition plates 301a form a compartment corresponding to a group of the smoke inlet 201b and the smoke outlet 201c. The separation unit 300 is integrally inserted into the inner cavity of the sampling tube 201 to form a plurality of sampling chambers; therefore, a plurality of fly ash samples can be obtained in the boiler flue D at the same time, and the detection method can obtain reasonable fly ash samples. The flue gas outlet 201c can be used for not only the flow of flue gas but also the pouring of fly ash from the individual chambers.
The rest of the structure is the same as that of embodiment 3.
In the installation process, firstly, a cavity with the diameter of the sampling tube 201 is formed in the side wall of the boiler flue D, and the positioning guard plate 102 is attached to the outer side wall of the installation flue through bolts or positioning devices.
1-5, during the fly ash sampling operation, pushing the outer sleeve 103a to enable the side wall of the outer sleeve 103a to exit the peripheral area of the limiting hole 101b, at this time, the limiting column 101c can freely slide in the limiting hole 101b, the sampling tube 201 is inserted into the inner cavity of the positioning tube 101 and extends into the boiler flue D, and the flue inlet 201b faces the flow direction of the flue gas through the mark corresponding to the direction of the flue gas inlet 201b on the protection disc 202 a; at this time, the limit post 101c faces one end of the inner ring of the sampling tube 201, opposite to the positioning hole 202b-1, and then the outer sleeve 103a is released, and under the action of the return spring 103c, the outer sleeve 103a covers the peripheral area of the limit hole 101b, and presses the limit post 101c, so that the end of the limit post 101c is stably limited in the positioning hole 202 b-1. The stable limit of the sampling tube 201 is realized, and after the sampling is finished, the steps are repeated, so that the sampling tube 201 can be taken out again.
When the sampling tube 201 is placed in the boiler flue D and the sampling operation is not performed, the outer sleeve 103a is repeatedly pushed, the sampling tube 201 is rotated 180 degrees, and the outer sleeve 103a is reset.
The sampling device has simple integral structure and simpler operation, can greatly improve the existing fly ash sampling effect and greatly reduce the cost of fly ash sampling.
It should be noted that the above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present application may be modified or substituted without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered in the scope of the claims of the present application.
Claims (6)
1. A fly ash sampling device for a boiler flue, characterized in that: comprising the steps of (a) a step of,
the positioning unit (100) is arranged on the side wall of the boiler flue (D) and comprises a positioning cylinder (101), a positioning guard plate (102) arranged at one end of the positioning cylinder (101) and a positioning piece (103) arranged at the other end of the positioning cylinder (101);
a mounting ring groove (101 a) and a limiting hole (101 b) are formed in the side wall of one end, far away from the positioning guard plate (102), of the positioning cylinder (101), and the limiting hole (101 b) is located at one end, far away from the positioning guard plate (102), of the mounting ring groove (101 a);
the limiting hole (101 b) penetrates through the side wall of the positioning cylinder (101) and is communicated with the outside of the positioning cylinder (101) and the inner ring, and a limiting column (101 c) is slidably arranged in the limiting hole (101 b);
the sampling unit (200) is inserted into the positioning cylinder (101) in a matching way and comprises a sampling cylinder (201) and a handheld piece (202) arranged at the end part of the sampling cylinder (201);
the sampling tube (201) comprises a tube body (201 a), and a smoke inlet (201 b) and a smoke outlet (201 c) which are formed in the side wall of the tube body (201 a);
an external thread is arranged on the side wall of the end part of the cylinder body (201 a); the smoke inlet (201 b) and the smoke outlet (201 c) are distributed in a 90-degree deflection way in the axial normal direction of the cylinder (201 a) and are not less than 30 cm apart; the smoke inlet (201 b) and the smoke outlet (201 c) are arranged in groups, a plurality of groups of smoke inlets are distributed at equal intervals, the smoke inlets (201 b) are distributed on the same straight line, and the smoke outlets (201 c) are distributed on the same straight line;
the hand piece (202) comprises a protective disc (202 a), a connecting pipe (202 b) arranged at one end of the protective disc (202 a), and a handle (202 c) at the other end;
an inner ring of the connecting pipe (202 b) is provided with an inner thread, and the outer thread can be matched with the inner thread; the connecting pipe (202 b) can be inserted into the inner ring side wall of the positioning cylinder (101) in a matched manner, positioning holes (202 b-1) are distributed on the outer side wall of the connecting pipe (202 b), and the end part, extending out of the limiting hole (101 b), of the limiting column (101 c) can be embedded into the positioning hole (202 b-1); the positioning holes (202 b-1) are arranged in one-to-one correspondence with the limit posts (101 c); the method comprises the steps of,
the separation unit (300) is matched and inserted into the sampling tube (201).
2. The fly ash sampling device for a boiler flue of claim 1, wherein: the axial length of the limiting column (101 c) is greater than that of the limiting hole (101 b);
at least two groups of limit posts (101 c) are symmetrically distributed;
the end part of the limiting column (101 c) is hemispherical, the diameter of a sphere at the end part of the limiting column (101 c) is larger than the aperture of the limiting hole (101 b), and the end part of the limiting column (101 c) can extend out of the limiting hole (101 b).
3. The fly ash sampling device for a boiler flue according to claim 1 or 2, wherein: the positioning guard plate (102) is positioned on an axial normal line of the positioning cylinder (101), and the projection area of the positioning guard plate on the axial normal line is larger than that of the positioning cylinder (101);
the positioning guard plate (102) can be attached to the side wall of the boiler flue (D).
4. The fly ash sampling device for a boiler flue according to claim 1 or 2, wherein: the positioning piece (103) comprises an outer sleeve (103 a), a flange (103 b) arranged on the inner side wall of the outer sleeve (103 a), and a reset spring (103 c) connected to the side wall of the flange (103 b).
5. The fly ash sampling device for a boiler flue of claim 4, wherein: the outer sleeve (103 a) is sleeved outside the mounting ring groove (101 a), and one end of the return spring (103 c) away from the flange (103 b) is connected to the side wall of the groove cavity of the mounting ring groove (101 a);
the outer sleeve (103 a) can cover the outside of the limit hole (101 b).
6. The fly ash sampling device for a boiler flue of claim 5, wherein: the separation unit (300) comprises at least 1 separation cylinder (301), and the separation cylinder (301) comprises a partition plate (301 a) and connecting rods (301 b) distributed on two sides of the partition plate (301 a);
the interval between adjacent partition plates (301 a) is equal to the interval between adjacent smoke inlets (201 b).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211218238.2A CN115628949B (en) | 2022-10-01 | 2022-10-01 | Fly ash sampling device for boiler flue |
| LU504575A LU504575B1 (en) | 2022-10-01 | 2023-06-22 | Fly ash sampling device for boiler flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211218238.2A CN115628949B (en) | 2022-10-01 | 2022-10-01 | Fly ash sampling device for boiler flue |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115628949A CN115628949A (en) | 2023-01-20 |
| CN115628949B true CN115628949B (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211218238.2A Active CN115628949B (en) | 2022-10-01 | 2022-10-01 | Fly ash sampling device for boiler flue |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115628949B (en) |
| LU (1) | LU504575B1 (en) |
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2022
- 2022-10-01 CN CN202211218238.2A patent/CN115628949B/en active Active
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2023
- 2023-06-22 LU LU504575A patent/LU504575B1/en active IP Right Grant
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1415949A (en) * | 2002-12-12 | 2003-05-07 | 上海交通大学 | Revolving cover type particle sampler in ring shape |
| CN103471875A (en) * | 2013-09-11 | 2013-12-25 | 大唐鲁北发电有限责任公司 | Flying ash sampling device of electric dust remover |
| CN204630785U (en) * | 2015-03-25 | 2015-09-09 | 厦门市特种设备检验检测院 | The opium pipe system that a kind of multidraw is analyzed |
| CN204612988U (en) * | 2015-05-14 | 2015-09-02 | 河北大唐国际王滩发电有限责任公司 | The impact type fly ash sampler of vertical flue is exported for air preheater |
| CN208459090U (en) * | 2018-08-01 | 2019-02-01 | 连云港市泰格电力设备有限公司 | A kind of full-automatic constant speed fly ash sampler |
| CN211527958U (en) * | 2019-11-27 | 2020-09-18 | 国电科学技术研究院有限公司 | Portable coal-fired power plant boiler flue gas flying dust sampling device |
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| Publication number | Publication date |
|---|---|
| LU504575B1 (en) | 2023-12-22 |
| CN115628949A (en) | 2023-01-20 |
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