CN217795024U - Novel from guide plate of taking large granule ash desorption device - Google Patents
Novel from guide plate of taking large granule ash desorption device Download PDFInfo
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- CN217795024U CN217795024U CN202221332106.8U CN202221332106U CN217795024U CN 217795024 U CN217795024 U CN 217795024U CN 202221332106 U CN202221332106 U CN 202221332106U CN 217795024 U CN217795024 U CN 217795024U
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- guide plate
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- large granule
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Abstract
The utility model discloses a novel from guide plate device of taking large granule ash desorption, including a plurality of guide plate bodies, wherein, guide plate body's end is provided with large granule ash collection device, and the device can effectively solve the problem of thermal power factory denitration large granule ash wearing and tearing catalyst and jam catalyst.
Description
Technical Field
The utility model belongs to the technical field of boiler denitration device flue gas side large granule ash desorption, a novel guide plate device from taking the large granule ash desorption is related to.
Background
The selective catalytic reduction denitration technology is widely applied to coal-fired power stations by a mature process and higher denitration efficiency. The denitration catalyst is the most important functional material in the SCR system, and in the operation process of a unit, the service life of the denitration catalyst has great influence on the denitration efficiency and the economic cost, but the performance of the denitration catalyst is reduced because the catalyst is influenced by various adverse factors in use, and ash carried in flue gas is one of the denitration catalysts. The SCR system usually adopts a high-dust arrangement, i.e. between the economizer and the air preheater, and the flue gas is not dedusted, so that the dust content is high, which causes the catalyst to be blocked and abraded, especially the influence of large particle ash therein is the largest. Large particle ash is generated during combustion and fine particle fly ash is agglomerated into large particles due to a slag phenomenon.
Large granule ash is porous structure, and density is less, and the appearance is irregular, and large granule ash can't pass through the catalyst. Due to the limited pitch of the catalyst, large particle ash particles cannot pass through the catalyst, so that the catalyst is blocked, and in a severe case, the flow area is reduced due to the blockage, and the flue gas flow velocity in a local area is increased to cause the abrasion of the catalyst. Generally, the fly ash particle size reaches a certain order of magnitude, which can cause catalyst clogging, and for larger diameter fly ash particles, it is not feasible to prevent clogging only from the structural design of the catalyst, and it must be removed before entering the catalyst.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art's shortcoming, provide a novel guide plate device from taking the desorption of large granule ash, the device can effectively solve the problem of thermal power factory denitration large granule ash wearing and tearing catalyst and jam catalyst.
In order to achieve the above purpose, the novel guide plate device with the large particle ash removal function comprises a plurality of guide plate bodies, wherein the tail end of each guide plate body is provided with a large particle ash collecting device.
The cross section of the large particle ash collecting device is of a hook-shaped structure.
The cross section of the large particle ash collecting device is of a circular arc-shaped structure.
All the guide plate bodies are distributed in parallel and at equal intervals.
The flow guide plate body is sequentially divided into a first flow guide plate section and a second flow guide plate section along the smoke flowing direction, wherein the first flow guide plate section is parallel to the smoke flowing direction, and the second flow guide plate section is crossed with the smoke flowing direction.
Along the flowing direction of the flue gas, the ends of the second flow guide plates are distributed upwards in an inclined mode.
The utility model discloses following beneficial effect has:
novel from guide plate device of taking large granule ash desorption when concrete operation, the boiler flue gas leads through the guide plate body, through guide plate body direction back, the flue gas direction changes, wherein, the great large granule ash of quality is behind the water conservancy diversion effect, because gravity inertia is big, gets into the large granule ash collection device that the guide plate body tip was arranged along guide plate body direction, collects the large granule ash to solve the problem of thermal power factory denitration large granule ash wearing and tearing catalyst and jam catalyst.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a block diagram of a baffle body;
fig. 3 is a sectional view taken along the direction a in fig. 2.
Wherein, 1 is the guide plate body, 2 is large granule ash collection device.
Detailed Description
In order to make the technical solution of the present invention better understood, the following figures in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments, and do not limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
A schematic structural diagram according to an embodiment of the present disclosure is shown in the drawings. The figures are not drawn to scale, wherein certain details are exaggerated and some details may be omitted for clarity of presentation. The shapes of various regions, layers and their relative sizes and positional relationships shown in the drawings are merely exemplary, and deviations may occur in practice due to manufacturing tolerances or technical limitations, and a person skilled in the art may additionally design regions/layers having different shapes, sizes, relative positions, according to actual needs.
Referring to fig. 1, fig. 2 and fig. 3, the novel flow deflector device with large particle ash removal of the present invention comprises a plurality of flow deflector bodies 1, wherein the end of the flow deflector body 1 is provided with a large particle ash collecting device 2, wherein the cross section of the large particle ash collecting device 2 is in a hook-shaped structure or a circular arc-shaped structure, and the flow deflector bodies 1 are distributed in parallel and at equal intervals;
the flow guide plate body 1 is sequentially divided into a first flow guide plate section and a second flow guide plate section along the smoke flowing direction, wherein the first flow guide plate section is parallel to the smoke flowing direction, the second flow guide plate section is intersected with the smoke flowing direction, and the second flow guide plate end is obliquely and upwards distributed along the smoke flowing direction.
At the during operation, the boiler flue gas leads through guide plate body 1, after leading through guide plate body 1, the flue gas direction changes, wherein, the great large granule ash of quality is after the water conservancy diversion effect, because gravity inertia is big, get into the large granule ash collection device 2 that the 1 tip of guide plate body was arranged along 1 direction of guide plate body, collect the large granule ash, the flue gas continues to flow downstream after the desorption, the large granule ash is through defeated grey system discharge to the flue outside, realize the purpose of large granule ash desorption.
What need explain, the utility model discloses the principle is feasible, the technique is ripe, and the large granule ash that carries in the coal fired power plant flue gas is to SCR flue gas denitration system's influence very big, installs additional the utility model discloses can effectively desorption large granule dust afterwards, the utility model discloses can continuous steady operation, have extensive application prospect in china's coal fired power plant, obvious lowering system running cost reaches steady operation's purpose.
Claims (6)
1. A novel guide plate device with large particle ash removal function is characterized by comprising a plurality of guide plate bodies (1), wherein a large particle ash collecting device (2) is arranged at the tail end of each guide plate body (1);
the cross section of the large particle ash collecting device (2) is of a hook-shaped structure or a circular arc-shaped structure.
2. The novel deflector device with large particle ash removal function according to claim 1, wherein the deflector bodies (1) are distributed in parallel and at equal intervals.
3. The novel flow guide plate device with large particle ash removal function according to claim 1, wherein the flow guide plate body (1) is sequentially divided into a first flow guide plate section and a second flow guide plate section along the flue gas flowing direction.
4. The novel flow guide plate device with large particle ash removal function as claimed in claim 3, wherein the first flow guide plate section is parallel to the flow direction of flue gas.
5. The novel deflector device with large particle ash removal function of claim 3, wherein the second deflector section intersects with the flow direction of flue gas.
6. The novel deflector device with large particle ash removal function of claim 3, wherein the second deflector end is distributed obliquely upwards along the flow direction of flue gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221332106.8U CN217795024U (en) | 2022-05-30 | 2022-05-30 | Novel from guide plate of taking large granule ash desorption device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221332106.8U CN217795024U (en) | 2022-05-30 | 2022-05-30 | Novel from guide plate of taking large granule ash desorption device |
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| Publication Number | Publication Date |
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| CN217795024U true CN217795024U (en) | 2022-11-15 |
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| CN202221332106.8U Active CN217795024U (en) | 2022-05-30 | 2022-05-30 | Novel from guide plate of taking large granule ash desorption device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939306A (en) * | 2022-05-30 | 2022-08-26 | 西安西热锅炉环保工程有限公司 | Novel from guide plate of taking large granule ash desorption device |
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2022
- 2022-05-30 CN CN202221332106.8U patent/CN217795024U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114939306A (en) * | 2022-05-30 | 2022-08-26 | 西安西热锅炉环保工程有限公司 | Novel from guide plate of taking large granule ash desorption device |
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