LU504575B1 - Fly ash sampling device for boiler flue - Google Patents
Fly ash sampling device for boiler flue Download PDFInfo
- Publication number
- LU504575B1 LU504575B1 LU504575A LU504575A LU504575B1 LU 504575 B1 LU504575 B1 LU 504575B1 LU 504575 A LU504575 A LU 504575A LU 504575 A LU504575 A LU 504575A LU 504575 B1 LU504575 B1 LU 504575B1
- Authority
- LU
- Luxembourg
- Prior art keywords
- positioning
- cylinder
- fly ash
- side wall
- boiler flue
- Prior art date
Links
- 238000005070 sampling Methods 0.000 title claims abstract description 107
- 239000010881 fly ash Substances 0.000 title claims abstract description 52
- 238000000926 separation method Methods 0.000 claims abstract description 21
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 45
- 239000003546 flue gas Substances 0.000 claims description 45
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000004323 axial length Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 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
- 238000000034 method Methods 0.000 description 3
- 239000003245 coal Substances 0.000 description 2
- 230000002093 peripheral effect Effects 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
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 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
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 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
A fly ash sampling device for a boiler flue, comprising a positioning unit, a sampling unit and a separation unit. 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 member arranged at the other end of the positioning cylinder. The sampling unit is cooperatively inserted into the positioning cylinder, and comprises a sampling cylinder and a handheld member arranged at the end of the sampling cylinder. The separation unit is cooperatively inserted into the sampling cylinder.
Description
BL-5708
FLY ASH SAMPLING DEVICE FOR BOILER FLUE 504575
[0001] The present disclosure relates to the technical field of flue fly ash sampling, in particular to a fly ash sampling device for a boiler flue.
[0002] In thermal power plants, coal is generally used as fuel for thermal power generation, and a boiler is the place where coal burns. In the process of boiler combustion, the carbon content of fly ash in flue gas is one of the main indicators of combustion efficiency of coal-fired boilers in power plants. The carbon content of fly ash in boilers is an important reference and basis for boiler combustion control efficiency. Controlling the carbon content of fly ash is also an important means to improve boiler efficiency.
[0003] In order to monitor the combustible content in fly ash of a boiler, it is necessary to sample and test the fly ash in boiler regularly. The existing fly ash sampling device for a boiler in a thermal power plant comprises a fly ash sampling device consisted of a sampling box, an air bag, an air inlet pipe, a first one-way valve, a second one-way valve, a sampling box, a pressure hole, a pressure rod, a driving motor, a coupling, a cam, a nozzle, an ash collecting box and a filter screen. The sampling device is not only complicated in structure, difficult to operate, but also high in operation cost. Therefore, the sampling device is not suitable for the existing fly ash sampling requirements, so that the sampling device needs to be improved.
[0004] The purpose of this section is to summarize some aspects of embodiments of the present disclosure and briefly introduce some preferred embodiments. Some simplification or omission may be made in this section and the abstract and the title in the present application to avoid obscuring the purpose of this section and the abstract and the title, and such simplification or omission cannot be used to limit the scope of the present disclosure.
[0005] In view of the problems existing in the existing fly ash sampling device for a boiler flue, the present disclosure has been put forward.
[0006] Therefore, it is an object of the present disclosure to provide a fly ash sample device for a boiler flue, which aims to solve the problems that the existing fly ash sampling device is complicated in structure, difficult to operate, and high in operation cost.
[0007] In order to solve the above technical problems, the present disclosure provides the following technical scheme: a fly ash sampling device for a boiler flue. The fly ash sampling 1
BL-5708 device for the boiler flue comprises a positioning unit, a sampling unit and a separation unit, 4575 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 member arranged at the other end of the positioning cylinder; the sampling unit is cooperatively inserted into the positioning cylinder, and comprises a sampling cylinder and a handheld member arranged at the end of the sampling cylinder; and the separation unit is cooperatively inserted into the sampling cylinder.
[0008] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, a side wall of one end of the positioning cylinder far away from the positioning guard plate is provided with a mounting ring groove and a limiting hole, and the limiting hole is located at one end of the mounting ring groove far away from the positioning guard plate; the limiting hole penetrates through the side wall of the positioning cylinder and is communicated with the outside and an inner ring of the positioning cylinder, and a limiting post is slidably placed in the limiting hole.
[0009] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, an axial length of the limiting post is greater than the axial length of the limiting hole; at least two groups of limiting posts are symmetrically distributed; the end of the limiting post is hemispherical, a diameter of the sphere at the end of the limiting post is larger than an aperture of the limiting hole, and the end of the limiting post is capable of extending out of the limiting hole.
[0010] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, the positioning guard plate is located on the axial normal line of the positioning cylinder, and has a projected area on the axial normal line larger than the projected area of the positioning cylinder; the positioning guard plate is capable of being attached to the side wall of the boiler flue.
[0011] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, the positioning member 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.
[0012] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, the outer sleeve is sleeved outside the mounting ring groove, and one end of the reset spring far away from the flange is connected to the side wall of the groove cavity of the mounting ring groove; the outer sleeve is capable of covering the outside of the limiting hole.
[0013] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, the sampling cylinder comprises a cylinder and a flue gas inlet and a flue gas outlet arranged on the side wall of the cylinder; the side wall of the end of the cylinder is 2
BL-5708 provided with an external thread. 7504575
[0014] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, the flue gas inlet and the flue gas outlet are distributed in the axial normal direction of the cylinder at an offset of 90 degrees, and the interval is not less than 30 cm; the flue gas inlet and the flue gas outlet are arranged in groups, a plurality of groups are distributed at equal intervals, each of the flue gas inlets is distributed on the same straight line, and each of the flue gas outlets is distributed on the same straight line.
[0015] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, the handheld member comprises a protective disk, a connecting pipe arranged at one end of the protective disk, and a handle at the other end thereof; the inner ring of the connecting pipe is provided with an internal thread, and the external thread is capable of cooperating in the internal thread; the connecting pipe is capable of being cooperatively inserted into the side wall of the inner ring of the positioning cylinder, positioning holes are distributed on the outer side wall of the connecting pipe, and the end of the limiting post extending out of the positioning hole is capable of being embedded in the positioning hole; the positioning hole is arranged corresponding to the limiting post.
[0016] As a preferred scheme of the fly ash sampling device for the boiler flue according to the present disclosure, the separation unit comprises at least one separation cylinder, and the separation cylinder comprises a baffle and connecting rods distributed on both sides of the baffle; the interval between adjacent baffles is equal to the interval between the adjacent flue gas inlets.
[0017] The present disclosure has the following beneficial effects.
[0018] According to the present disclosure, the placement position of the sampling unit is limited by the positioning unit, and the sampling unit can be protected. The sampling unit is simple in structure, and the sampling operation is convenient in cooperation with the positioning unit. A plurality of samples can be simultaneously sampled by placing the separation unit in the sampling cylinder, so that the fairness of sampling is maintained, and the existing difficulty of sampling fly ash is greatly simplified.
[0019] In order to explain the technical scheme of the embodiment of the present disclosure more clearly, the drawings needed in the description of the embodiment will be briefly introduced hereinafter. Obviously, the drawings in the following description are only some embodiments of the present disclosure. For those skilled in the art, other drawings can be obtained according to these drawings without paying creative labor. In the figures:
[0020] FIG. 1 is a schematic diagram of the mounting position of a fly ash sampling device for a 3
BL-5708 boiler flue according to the present disclosure. HUS04575
[0021] FIG. 2 is a schematic diagram of the overall structure of a fly ash sampling device for a boiler flue according to the present disclosure.
[0022] FIG. 3 is a schematic diagram of a concrete connection structure of a fly ash sampling device for a boiler flue according to the present disclosure.
[0023] FIG. 4 is a schematic diagram of a semi-sectional structure of a fly ash sampling device for a boiler flue according to the present disclosure.
[0024] FIG. 5 is a schematic diagram of a partial F enlarged structure of a fly ash sampling device for a boiler flue according to the present disclosure.
[0025] In order to make the above objects, features and advantages of the present disclosure more obvious and understandable, the specific embodiments of the present disclosure will be described in detail with reference to the attached drawings hereinafter.
[0026] In the following description, many specific details are set forth in order to fully understand the present disclosure, but the present disclosure can also be implemented in other ways different from those described here. Those skilled in the art can make similar promotion without departing from the connotation of the present disclosure, so that the present disclosure is not limited by the specific embodiments disclosed hereinafter.
[0027] Second, the term "one embodiment" or "an embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation of the present disclosure. The appearances of "in one embodiment" in different places in this specification do not all refer to the same embodiment, nor are they separate or selective embodiments mutually exclusive of other embodiments.
[0028] Third, the present disclosure will be described in detail with reference to the schematic diagram. When the embodiment of the present disclosure is described in detail, for the convenience of explanation, the cross-sectional diagram showing the device structure will not be partially scaled up, and the schematic diagram is only an example, which should not limit the scope of protection of the present disclosure here. In addition, the three-dimensional space of length, width and depth should be included in the actual production.
[0029] Embodiment 1
[0030] As shown in FIGS. 1 to 5, according to the first embodiment of the present disclosure, a fly ash sampling device for a boiler flue is provided, comprising a positioning unit 100, a sampling unit 200 and a separation unit 300, wherein the positioning unit 100 is mounted on the outer side wall of the boiler flue D for positioning and mounting the sampling unit 200, and the 4
BL-5708 sampling unit 200 is used to extend into the boiler flue D to collect fly ash samples from flue gas 4575 and the separation unit 300 is used to separate the sampling cylinders in the sampling unit 200, so as to collect a plurality of groups of fly ash samples at the same time.
[0031] 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 member 103 arranged at the other end of the positioning cylinder 101. The positioning cylinder 101 is used to position and mount the sampling cylinder 201, and the positioning guard plate 102 is used to be in contact with the side wall of the boiler flue D to improve the protection of the positioning cylinder 101 and the handheld member 202. The positioning member 103 is configured to limit the positioning of the sampling unit 200, so that it can be placed in a predetermined state.
[0032] The sampling unit 200 is cooperatively inserted into the positioning cylinder 101, and comprises a sampling cylinder 201 and a handheld member 202 arranged at the end of the sampling cylinder 201. The sampling cylinder 201 is configured to sample from the boiler flue D, and the hand-held member 202 is configured to be held by workers to prevent from being scalded by the high temperature in the sampling cylinder 201.
[0033] The separation unit 300 is cooperatively inserted into the sampling cylinder 201, which is configured to separate the inner cavity of the sampling cylinder 201, thereby separating a plurality of groups of sampling spaces.
[0034] Embodiment 2
[0035] As shown in FIGS. 2 to 5, a second embodiment of the present disclosure is different from the first embodiment in that a side wall of one end of the positioning cylinder 101 far away from the positioning guard plate 102 is provided with a mounting ring groove 10la and a limiting hole 101b, and the limiting hole 101b is located at one end of the mounting ring groove 101a far away from the positioning guard plate 102; the limiting hole 101b penetrates through the side wall of the positioning cylinder 101 and is communicated with the outside and an inner ring of the positioning cylinder 101, and a limiting post 101c is slidably placed in the limiting hole 101b.
[0036] An axial length of the limiting post 101c is greater than the axial length of the limiting hole 101b; at least two groups of limiting posts 101c are symmetrically distributed; the end of the limiting post 101c is hemispherical, a diameter of the sphere at the end of the limiting post 101c is larger than an aperture of the limiting hole 101b, and the end of the limiting post 101c is capable of extending out of the limiting hole 101b.
[0037] The positioning guard plate 102 is located on the axial normal line of the positioning cylinder 101, and has a projected area on the axial normal line larger than the projected area of
BL-5708 the positioning cylinder 101; the positioning guard plate 102 is capable of being attached to the 504575 side wall of the boiler flue D.
[0038] The positioning member 103 comprises an outer sleeve 103a, a flange 103b arranged on the inner side wall of the outer sleeve 103a, and a reset spring 103c connected to the side wall of the flange 103b.
[0039] The outer sleeve 103a is sleeved outside the mounting ring groove 101a, and one end of the reset spring 103c far away from the flange 103b is connected to the side wall of the groove cavity of the mounting ring groove 101a; the outer sleeve 103a is capable of covering the outside of the limiting hole 101b.
[0040] Compared with 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 inserted hole, so as to be suitable for the insertion of the sampling cylinder 201. The mounting ring groove 101a on the side wall of the positioning cylinder 101 is configured to mount the positioning member 103, and the limiting hole 101b is configured to mount the limiting post 101c. The limiting posts 101c are arranged in pairs, and every two limiting posts form a group. The limiting posts are distributed with respect to each other, that is, at an interval of 180 degrees. In this scheme, four limiting holes 101b are distributed at an equal interval of 90 degrees.
[0041] Both axial ends of the limiting post 101c are hemispherical. Because the aperture of the opening of the limiting hole 101b is smaller than the maximum radial diameter of the sphere, the limiting post 101c will always be limited in the limiting hole 101b, but the end of the limiting post 101c can extend out of the limiting hole 101b. The limiting post 101c extends out of the end of the limiting hole 101b and cooperates with the positioning hole 202b-1 to limit the placement state of the sampling cylinder 201.
[0042] Further, the outer sleeve 103a in 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. By changing the placement position of the outer sleeve 103a, the position of the limiting post 101c in the limiting hole 101b can be limited. The reset spring 103c is configured to reset the position of the outer sleeve 103a.
[0043] The remaining structure is the same as that of Embodiment 1.
[0044] Embodiment 3
[0045] As shown in FIGS. 2 to 4, a third embodiment of the present disclosure is different from the second embodiment in that the sampling cylinder 201 comprises a cylinder 201a and a flue gas inlet 201b and a flue gas outlet 201c arranged on the side wall of the cylinder 201a; the side wall of the end of the cylinder 201a is provided with an external thread. 6
BL-5708
[0046] The flue gas inlet 201b and the flue gas outlet 201c are distributed in the axial normal 975 direction of the cylinder 201a at an offset of 90 degrees, and the interval is not less than 30 cm.
The flue gas inlet 201b and the flue gas outlet 201c are arranged in groups, a plurality of groups are distributed at equal intervals, each of the flue gas inlets 201b is distributed on the same straight line, and each of the flue gas outlets 201c is distributed on the same straight line.
[0047] The handheld member 202 comprises a protective disk 202a, a connecting pipe 202b arranged at one end of the protective disk 202a, and a handle 202c at the other end thereof] the inner ring of the connecting pipe 202b is provided with an internal thread, and the external thread is capable of cooperating in the internal thread; the connecting pipe 202b is capable of being cooperatively inserted into the side wall of the inner ring of the positioning cylinder 101, positioning holes 202b-1 are distributed on the outer side wall of the connecting pipe 202b, and the end of the limiting post 101c extending out of the positioning hole 101b is capable of being embedded in the positioning hole 202b-1; the positioning hole 202b-1 is arranged corresponding to the limiting post 101c.
[0048] Compared with Embodiment 2, the sampling cylinder 201 is further supported by a 304 stainless steel pipe with one end closed, the length of which can be set by the radial diameter of the actual boiler flue D. The flue gas inlet 201b and the flue gas outlet 201c are arranged on the side wall of the cylinder of the sampling cylinder 201, respectively. During sampling operation, the flue gas inlet 201b faces the flue gas direction, and the flue gas outlet 201c is perpendicular to the flow direction of flue gas. When sampling is not performed, the sampling cylinder 201 rotates by 180 degrees, so that the flue gas inlet 201b deviates from the flow direction of flue gas, and the flue gas outlet 201c faces upward.
[0049] The handheld member 202 can be held by workers so as to take the sampling cylinder 201. The specific protective disk 202a is used for protection, and the handle 202c is a specific hand-held part. The maximum radial diameter of the connecting pipe 202b is the same as that of the sampling cylinder 201, and the connecting pipe and the sampling cylinder can be assembled integrally through the thread at the end. The positioning hole 202b-1 in the outer side wall of the connecting pipe 202b can cooperate with the limiting post 101c to form a positioning structure, thus keeping the sampling cylinder 201 in the set placement state.
[0050] The remaining structure is the same as that of Embodiment 2.
[0051] Embodiment 4
[0052] As shown in FIG. 4, a fourth embodiment of the present disclosure is different from the third embodiment in that the separation unit 300 comprises at least one separation cylinder 301, and the separation cylinder 301 comprises a baffle 301a and connecting rods 301b distributed on both sides of the baffle 301a; the interval between adjacent baffles 301a is equal to the interval 7
BL-5708 between the adjacent flue gas inlets 201b. 7504575
[0053] Compared with Embodiment 3, further, the separation unit 300 consists of a plurality of groups of separation cylinders 301 in combination. Two baffles 301a form a compartment corresponding to a group of flue gas inlets 201b and flue gas outlets 201c. The separation unit 300 is integrally inserted into the inner cavity of the sampling cylinder 201 to form a plurality of sampling chambers. Therefore, the fly ash samples at a plurality of sites can be acquired in the boiler flue D at the same time. This detection method can acquire more reasonable fly ash samples. It should also be noted that the flue gas outlet 201c not only can be used for the flow of flue gas, but also be used to pour out the fly ash in each chamber.
[0054] The remaining structure is the same as that of Embodiment 3.
[0055] In the mounting process, a hole with the diameter of the sampling cylinder 201 is first provided on the side wall of the boiler flue D, and the positioning guard plate 102 is attached to the outer side wall of the flue through bolts or positioning devices.
[0056] As shown in FIGS. 1 to 5, in the process of fly ash sampling operation, the outer sleeve 103a is pushed so that the side wall of the outer sleeve 103a withdraws from the peripheral area of the limiting hole 101b. At this time, the limiting post 101c can freely slide in the limiting hole 101b. The sampling cylinder 201 is inserted into the inner cavity of the positioning cylinder 101 and extends into the boiler flue D. The mark on the protective disk 202a corresponding to the orientation of flue gas inlet 201b makes the flue gas inlet 201b face the flow direction of flue gas.
At this time, the limiting post 101c faces one end of the inner ring of the sampling cylinder 201 and is opposite to the positioning hole 202b-1. Then, the outer sleeve 103a is released. Under the action of the reset spring 103c, the outer sleeve 103a covers the peripheral area of the limiting hole 101b and squeezes the limiting post 101c, so that the end of the limiting post 101c is stably limited in the positioning hole 202b-1. The sampling cylinder 201 can be stably limited. The sampling cylinder 201 can be taken out again by repeating the above steps after sampling.
[0057] When the sampling cylinder 201 is put into the boiler flue D and no sampling operation is performed, the outer sleeve 103a is repeatedly pushed, the sampling cylinder 201 is rotated by 180 degrees, and then the outer sleeve 103a is reset.
[0058] The whole structure of the sampling device is simple, and the operation is simpler, which can greatly improve the existing fly ash sampling effect and greatly reduce the cost of fly ash sampling.
[0059] It should be noted that the above embodiments are only used to illustrate rather than limit the technical scheme of the present disclosure. Although the present disclosure has been described in detail with reference to preferred embodiments, those skilled in the art should understand that the technical scheme of the present disclosure can be modified or replaced by 8
BL-5708
LU504575 equivalents without departing from the spirit and scope of the technical scheme, which should be included in the scope of the claims of the present disclosure. 9
Claims (10)
1. A fly ash sampling device for a boiler flue, comprising: a positioning unit (100), which 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 member (103) arranged at the other end of the positioning cylinder (101); a sampling unit (200), which is cooperatively inserted into the positioning cylinder (101), and comprises a sampling cylinder (201) and a handheld member (202) arranged at the end of the sampling cylinder (201); and a separation unit (300), which is cooperatively inserted into the sampling cylinder (201).
2. The fly ash sampling device for the boiler flue according to claim 1, wherein a side wall of one end of the positioning cylinder (101) far away from the positioning guard plate (102) is provided with a mounting ring groove (101a) and a limiting hole (101b), and the limiting hole (101b) is located at one end of the mounting ring groove (101a) far away from the positioning guard plate (102); the limiting hole (101b) penetrates through the side wall of the positioning cylinder (101) and is communicated with the outside and an inner ring of the positioning cylinder (101), and a limiting post (101c) 1s slidably placed in the limiting hole (101b).
3. The fly ash sampling device for the boiler flue according to claim 2, wherein an axial length of the limiting post (101c) is greater than the axial length of the limiting hole (101b); at least two groups of limiting posts (101c) are symmetrically distributed; the end of the limiting post (101c) is hemispherical, a diameter of the sphere at the end of the limiting post (101c) is larger than an aperture of the limiting hole (101b), and the end of the limiting post (101c) is capable of extending out of the limiting hole (101b).
4. The fly ash sampling device for the boiler flue according to any of claims 1 to 3, wherein the positioning guard plate (102) is located on the axial normal line of the positioning cylinder (101), and has a projected area on the axial normal line larger than the projected area of the positioning cylinder (101); the positioning guard plate (102) is capable of being attached to the side wall of the boiler flue (D).
5. The fly ash sampling device for the boiler flue according to any of claims 1 to 3, wherein the positioning member (103) comprises an outer sleeve (103a), a flange (103b) arranged on the inner side wall of the outer sleeve (103a), and a reset spring (103c) connected to the side wall of
BL-5708 the flange (103b). 7904575
6. The fly ash sampling device for the boiler flue according to claim 3, wherein the outer sleeve (103a) is sleeved outside the mounting ring groove (101a), and one end of the reset spring (103c) far away from the flange (103b) is connected to the side wall of the groove cavity of the mounting ring groove (101a); the outer sleeve (103a) is capable of covering the outside of the limiting hole (101b).
7. The fly ash sampling device for the boiler flue according to claim 3, wherein the sampling cylinder (201) comprises a cylinder (201a) and a flue gas inlet (201b) and a flue gas outlet (201c) arranged on the side wall of the cylinder (201a); the side wall of the end of the cylinder (201a) is provided with an external thread.
8. The fly ash sampling device for the boiler flue according to claim 7, wherein the flue gas inlet (201b) and the flue gas outlet (201c) are distributed in the axial normal direction of the cylinder (201a) at an offset of 90 degrees, and the interval is not less than 30 cm; the flue gas inlet (201b) and the flue gas outlet (201c) are arranged in groups, a plurality of groups are distributed at equal intervals, each of the flue gas inlets (201b) is distributed on the same straight line, and each of the flue gas outlets (201c) is distributed on the same straight line.
9. The fly ash sampling device for the boiler flue according to claim 7 or 8, wherein the handheld member (202) comprises a protective disk (202a), a connecting pipe (202b) arranged at one end of the protective disk (202a), and a handle (202c) at the other end thereof; the inner ring of the connecting pipe (202b) is provided with an internal thread, and the external thread is capable of cooperating in the internal thread; the connecting pipe (202b) is capable of being cooperatively inserted into the side wall of the inner ring of the positioning cylinder (101), positioning holes (202b-1) are distributed on the outer side wall of the connecting pipe (202b), and the end of the limiting post (101c) extending out of the limiting hole (101b) is capable of being embedded in the positioning hole (202b-1); the positioning hole (202b-1) is arranged corresponding to the limiting post (101c).
10. The fly ash sampling device for the boiler flue according to claim 7 or 8, wherein the separation unit (300) comprises at least one separation cylinder (301), and the separation cylinder (301) comprises a baffle (301a) and connecting rods (301b) distributed on both sides of the baffle (301a); the interval between adjacent baffles (301a) is equal to the interval between the adjacent flue gas inlets (201b). 11
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 (1)
| Publication Number | Publication Date |
|---|---|
| LU504575B1 true LU504575B1 (en) | 2023-12-22 |
Family
ID=84903763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU504575A LU504575B1 (en) | 2022-10-01 | 2023-06-22 | Fly ash sampling device for boiler flue |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN115628949B (en) |
| LU (1) | LU504575B1 (en) |
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| CN1176359C (en) * | 2002-12-12 | 2004-11-17 | 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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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
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| Publication number | Publication date |
|---|---|
| CN115628949A (en) | 2023-01-20 |
| CN115628949B (en) | 2023-09-12 |
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