CN220697209U - Anti-blocking mechanism of ammonia spraying grid - Google Patents
Anti-blocking mechanism of ammonia spraying grid Download PDFInfo
- Publication number
- CN220697209U CN220697209U CN202322215474.5U CN202322215474U CN220697209U CN 220697209 U CN220697209 U CN 220697209U CN 202322215474 U CN202322215474 U CN 202322215474U CN 220697209 U CN220697209 U CN 220697209U
- Authority
- CN
- China
- Prior art keywords
- spray head
- baffle
- blocking mechanism
- pipeline
- branch pipes
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 67
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 32
- 230000007246 mechanism Effects 0.000 title claims abstract description 26
- 238000005507 spraying Methods 0.000 title abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 50
- 238000002347 injection Methods 0.000 claims description 12
- 239000007924 injection Substances 0.000 claims description 12
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 6
- 235000011114 ammonium hydroxide Nutrition 0.000 description 6
- 239000013078 crystal Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 3
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- Nozzles (AREA)
Abstract
The utility model is suitable for the technical field of ammonia spraying devices, and provides an anti-blocking mechanism of an ammonia spraying grid, which comprises the following components: the pipeline, a plurality of branch pipes, a baffle and a spray head, wherein the branch pipes are fixedly connected with the pipeline, the spray head is connected with the branch pipes in a sliding manner, the baffle is opposite to the branch pipes, a certain gap is reserved between the baffle and the tail ends of the branch pipes, a dredging rod is arranged in the middle of the baffle, and the dredging rod and the pipeline of the spray head are coaxially arranged; the spray head is connected with the branch pipe in a sliding manner; a spring is arranged between the spray head and the branch pipe. Therefore, the automatic dredging device is simple in structure, and automatic dredging after plugging of the spray head is realized by utilizing the cooperation of the movable spray head and the dredging rod.
Description
Technical Field
The utility model relates to the technical field of ammonia spraying devices, in particular to an anti-blocking mechanism of an ammonia spraying grid.
Background
At present, the existing ammonia spraying device mostly adopts an ammonia spraying grid, the ammonia spraying grid is generally horizontally and fixedly connected in a flue, a plurality of nozzles are installed in the leeward direction of the ammonia spraying grid, ammonia gas is sprayed out through the plurality of nozzles on the ammonia spraying grid, then flows to a catalyst along with flue gas in the flue, NOx in the flue gas is converted into nitrogen and water under the catalysis of the catalyst, and effective denitration of the flue gas is realized.
After the ammonia water is used for a long time, crystals can be formed at the nozzle, so that the nozzle is blocked, and the machine is required to be stopped for cleaning.
The utility model provides an ammonia spraying grid anti-blocking device for SCR denitration, it includes closing mechanism and a plurality of communicating pipe, a plurality of communicating pipe all crooked setting, a plurality of communicating pipe and a plurality of nozzle one-to-one on the ammonia spraying grid set up, communicating pipe and its corresponding nozzle intercommunication, every all seted up the ash discharge mouth on the communicating pipe, communicating pipe's discharge gate center with the line perpendicular to ground at ash discharge mouth center, closing mechanism connects on the flue, closing mechanism is used for sealing or opening a plurality of the ash discharge mouth. This scheme reduces the dust that falls in the flue and blocks up the possibility of nozzle, but to the jam treatment effect that aqueous ammonia crystallization caused relatively poor.
In summary, it is clear that the prior art has inconvenience and defects in practical use, so that improvement is needed.
Disclosure of Invention
Aiming at the defects, the utility model aims to provide an anti-blocking mechanism of an ammonia spraying grid, which has a simple structure and realizes automatic dredging after blocking of a spray head by utilizing the cooperation of a movable spray head and a dredging rod.
In order to achieve the above object, the present utility model provides an anti-blocking mechanism of an ammonia injection grid, comprising: the pipeline, a plurality of are in charge of, baffle and shower nozzle, be in charge of the rigid coupling the pipeline, shower nozzle sliding connection be in charge of, the baffle with be just right to be in charge of, the baffle with the end of being in charge of has certain clearance, the centre of baffle is equipped with dredge the pole, dredge the pole with the pipeline coaxial arrangement of shower nozzle.
According to the anti-blocking mechanism of the ammonia injection grid, the spray heads are connected with the branch pipes in a sliding mode.
According to the anti-blocking mechanism of the ammonia spraying grid, a spring is arranged between the spray head and the branch pipe.
According to the anti-blocking mechanism of the ammonia spraying grid, the tail end of the dredging rod is provided with a bulge.
According to the anti-blocking mechanism of the ammonia spraying grid, the inside of the spray head is provided with the channel, and the axis of the channel is coincident with the axis of the protrusion.
According to the anti-blocking mechanism of the ammonia injection grid, the diameter of the channel is larger than that of the protrusion.
According to the anti-blocking mechanism of the ammonia spraying grid, the channel in the spray head is provided with the conical structure, and when the spray head is inserted into the outer side of the dredging rod, the bulge is positioned in the conical structure
The utility model relates to an anti-blocking mechanism of an ammonia injection grid, which comprises: the pipeline, a plurality of branch pipes, a baffle and a spray head, wherein the branch pipes are fixedly connected with the pipeline, the spray head is connected with the branch pipes in a sliding manner, the baffle is opposite to the branch pipes, a certain gap is reserved between the baffle and the tail ends of the branch pipes, a dredging rod is arranged in the middle of the baffle, and the dredging rod and the pipeline of the spray head are coaxially arranged; the utility model has simple structure, and realizes automatic dredging after the blocking of the spray head by utilizing the matching of the movable spray head and the dredging rod.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of the present utility model;
FIG. 3 is an enlarged schematic view of detail A in FIG. 1;
FIG. 4 is an enlarged schematic view of the first operating state of detail B of FIG. 2;
FIG. 5 is an enlarged schematic view of the second operating state of detail B of FIG. 2;
FIG. 6 is a schematic view of the structure of the spray head of the present utility model;
in the figure, 1-pipeline, 11-branch pipe, 12-baffle, 13-dredging rod, 14-connecting rod and 2-nozzle.
Detailed Description
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Referring to fig. 1 to 6, the present utility model provides an anti-blocking mechanism for an ammonia injection grid. The anti-blocking mechanism of the ammonia spraying grille comprises: the device comprises a pipeline 1, a plurality of branch pipes 11, a baffle 12 and a spray head 2, wherein the branch pipes 11 are fixedly connected with the pipeline 1, the spray head 2 is connected with the branch pipes 11 in a sliding manner, the baffle 12 is opposite to the branch pipes 11, a certain gap is reserved between the baffle 12 and the tail ends of the branch pipes 11, and the baffle 12 is connected with the branch pipes 11 through a connecting rod 14; a dredging rod 13 is arranged in the middle of the baffle 12, and the dredging rod 13 and the pipeline 1 of the spray head 2 are coaxially arranged. When the shower nozzle 2 sprays aqueous ammonia for a long time, the end of shower nozzle 2 can produce crystallization, leads to shower nozzle 2 to be plugged, and shower nozzle 2 sliding connection is in charge of 11, and after shower nozzle 2 was plugged, the pressure in the pipeline 1 increased, forces shower nozzle 2 outwards to remove for inside of mediation pole 13 grafting to shower nozzle 2 dredges the crystalline solid in the shower nozzle 2, resumes the patency of shower nozzle 2. The spray head 2 is connected with the branch pipe 11 in a sliding way. So that the spray head 2 can move relative to the branch pipe 11, and the relative movement of the dredging rod 13 and the spray head 2 is realized.
Further, a spring is arranged between the spray head 2 and the branch pipe 11, so that the spray head 2 can be abutted against the inside of the branch pipe 11.
Further, a protrusion is provided at the end of the dredging rod 13. The bulge can increase the contact surface with the crystal, thereby improving the dredging effect.
Furthermore, a channel is arranged in the spray head 2, and the axis of the channel coincides with the axis of the protrusion. The bulges are inserted into the channels, so that crystals in the channels are separated under the stress and are discharged outwards under the action of the pressure of the pipeline 1.
Further, the diameter of the channel is greater than the diameter of the protrusion. The normal movement of the spray head 2 is ensured, and when the axle center of the bulge and the channel is misplaced due to the assembly or the production process, the movement of the spray head 2 can lead the dredging rod 13 to be askew or the spray head 2 can not be moved.
Further, the channel in the nozzle 2 is provided with a conical structure, and when the nozzle 2 is inserted into the outer side of the dredging rod 13, the protrusion is positioned in the conical structure. After the dredging rod 13 dredges the crystallization, ammonia water is sprayed outwards through the gap between the bulge and the channel.
Further, the baffle 12 is V-shaped. The area of ammonia water outward diffusion is increased, and the mixing effect is improved.
When the anti-blocking mechanism of the ammonia spraying grid is used, ammonia water is sprayed outwards through the pipeline 1 and the spray head 2, when the spray head 2 is crystallized to cause blockage of the spray head 2, the spray head 2 is subjected to the action of the internal pressure of the pipeline 1, the pressure of the spring is overcome, the spray head 2 moves outwards, a channel of the spray head 2 is inserted onto the dredging rod 13, the dredging rod 13 dredges crystals, the crystals fall off, then are discharged outwards, the pressure in the spray head 2 is released, and the spray head 2 moves back under the action of the spring to realize normal spraying.
In summary, the anti-blocking mechanism of the ammonia injection grille of the present utility model includes: the pipeline, a plurality of branch pipes, a baffle and a spray head, wherein the branch pipes are fixedly connected with the pipeline, the spray head is connected with the branch pipes in a sliding manner, the baffle is opposite to the branch pipes, a certain gap is reserved between the baffle and the tail ends of the branch pipes, a dredging rod is arranged in the middle of the baffle, and the dredging rod and the pipeline of the spray head are coaxially arranged; the utility model has simple structure, and realizes automatic dredging after the blocking of the spray head by utilizing the matching of the movable spray head and the dredging rod.
In the description of the present utility model, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must be provided with a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model, as will be apparent to those skilled in the art, without departing from the spirit and scope of the utility model as defined in the appended claims.
Claims (6)
1. An anti-blocking mechanism of an ammonia injection grid, comprising: the pipeline, a plurality of are in charge of, baffle and shower nozzle, be in charge of the rigid coupling the pipeline, shower nozzle sliding connection be in charge of, the baffle with be just right to be in charge of, the baffle with the end of being in charge of has certain clearance, the centre of baffle is equipped with dredge the pole, dredge the pole with the pipeline coaxial arrangement of shower nozzle.
2. The anti-blocking mechanism of an ammonia injection grid according to claim 1, wherein a spring is arranged between the spray head and the branched pipe.
3. The anti-blocking mechanism of an ammonia injection grid according to claim 2, wherein the end of the dredging rod is provided with a protrusion.
4. The anti-blocking mechanism of an ammonia injection grid according to claim 3, wherein a channel is arranged in the spray head, and the axis of the channel coincides with the axis of the protrusion.
5. The anti-clog mechanism of an ammonia injection grid of claim 4, wherein the diameter of said channels is greater than the diameter of said protrusions.
6. The anti-blocking mechanism of an ammonia injection grid according to claim 5, wherein the passages in the spray head are provided with a tapered structure, and the protrusions are located in the tapered structure when the spray head is inserted into the outside of the dredging rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322215474.5U CN220697209U (en) | 2023-08-17 | 2023-08-17 | Anti-blocking mechanism of ammonia spraying grid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322215474.5U CN220697209U (en) | 2023-08-17 | 2023-08-17 | Anti-blocking mechanism of ammonia spraying grid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220697209U true CN220697209U (en) | 2024-04-02 |
Family
ID=90447042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322215474.5U Active CN220697209U (en) | 2023-08-17 | 2023-08-17 | Anti-blocking mechanism of ammonia spraying grid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220697209U (en) |
-
2023
- 2023-08-17 CN CN202322215474.5U patent/CN220697209U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |