CN216614055U - Multilayer distributed ammonia oxidation furnace distributor - Google Patents
Multilayer distributed ammonia oxidation furnace distributor Download PDFInfo
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- CN216614055U CN216614055U CN202123011534.9U CN202123011534U CN216614055U CN 216614055 U CN216614055 U CN 216614055U CN 202123011534 U CN202123011534 U CN 202123011534U CN 216614055 U CN216614055 U CN 216614055U
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/141—Feedstock
Abstract
The utility model provides a multilayer distributed ammonia oxidation furnace distributor, which is characterized in that ammonia gas and air are fully mixed and the gas distribution is more uniform through the arrangement of a three-stage gas distributor, meanwhile, the three-stage gas distributor is supported by a suspender, the suspender is connected with a shell of the ammonia oxidation furnace through a positioning and fastening device, the connection stability is improved, and the ammonia gas is prevented from overflowing at the joint; and finally, an anti-overflow device is arranged at the bottom of the three-stage gas distributor, so that the oxidation of ammonia gas is further improved, and the leakage is prevented.
Description
Technical Field
The utility model relates to the technical field of nitric acid production equipment, in particular to a distributor of a multilayer distributed ammonia oxidation furnace.
Background
The ammonia oxidation furnace is a key device for producing nitric acid, and ammonia-oxygen mixed gas generates nitric oxide gas under the action of a catalyst and then reacts with water to generate nitric acid. The output capacity of the nitrogen oxide depends on the uniformity of gas passing through the catalyst bed to a great extent, the existing distributor is not uniformly distributed, the distributor is not tightly fixed and leaks gas, the combustion reaction is insufficient due to bias flow, and the radial distribution of the temperature on the platinum net and under the platinum net is uneven, so that the equipment is damaged, and the yield of the nitrogen oxide is influenced.
Therefore, it is necessary to provide a new distributor for ammonia oxidation furnace, which can sufficiently oxidize ammonia gas and uniformly distribute ammonia gas to prevent leakage.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving one of the technical problems in the related technology to at least a certain extent, and provides a multilayer distributed ammonia oxidation furnace distributor, wherein ammonia gas and air are fully mixed and the gas distribution is more uniform through the arrangement of a three-stage gas distributor, meanwhile, the three-stage gas distributor is supported by a suspender, the suspender is connected with a shell of the ammonia oxidation furnace through a positioning and fastening device, the connection stability is improved, and the ammonia gas is prevented from overflowing at the joint; and finally, an anti-overflow device is arranged at the bottom of the three-stage gas distributor, so that the oxidation of ammonia gas is further improved, and the leakage is prevented.
In view of the above, the present invention provides a distributor of a multi-layer distributed ammonia oxidation furnace, comprising a housing;
the three-stage gas distributor is arranged in the shell by using a lifting rod for lifting and supporting; positioning and fastening devices are arranged at the two ends of the hanging rod; and
and the anti-overflow device is positioned inside the shell and is arranged on the three-stage gas distributor.
In some embodiments, the three-stage gas distributor comprises a first distributor, a second distributor and a third distributor which are arranged from top to bottom in sequence; the first distributor, the second distributor and the third distributor are all provided with air distribution holes, wherein the diameters of the air distribution holes on the first distributor and the second distributor are the same; the diameter of the air distribution holes on the third distributor is smaller than that of the air distribution holes on the second distributor.
In some embodiments, the positioning and fastening means comprises an upper end positioning and fastening means and a lower end positioning and fastening means; the upper end positioning and fastening device is connected with the shell through a positioning ring; the lower end positioning and fastening device is directly connected with the third distributor.
In some embodiments, the upper positioning and fastening means comprises a straight plate; one end of the straight plate is connected with the upper part of the suspender, and the other end is fixed on the positioning ring.
In some embodiments, the lower end locating fastener comprises a flap and a riser; one end of the folded plate is connected with the lower part of the suspender, and the other end of the folded plate is fixed on the third distributor through the vertical plate.
In some embodiments, the spill prevention device comprises a pressure plate, a flow guide ring, a support ring and a pressure ring; wherein the guide ring is arranged outside the support ring and connected with the shell; the pressure plate is fixedly arranged on the support ring; the clamping ring is arranged on the inner side of the support ring and is positioned between the support ring and the third distributor.
In some embodiments, the positioning and fastening means further comprises a top positioning and fastening means; wherein the upper end of the suspender is connected on the shell through a top positioning and fastening device, and the lower end of the suspender is connected at the middle part of the third distributor.
In some embodiments, the top positioning fastening means comprises at least a connecting plate; the connecting plate is welded on the shell; one end of the suspender is connected on the connecting plate through a bolt.
Through the technical scheme, the utility model provides a distributor of a multilayer distributed ammonia oxidation furnace, which has the following technical effects: the three-stage gas distributor is arranged to fully mix ammonia gas with air and distribute the gas more uniformly, and meanwhile, the three-stage gas distributor is supported by the suspender, and the suspender is connected with the shell of the ammonia oxidation furnace through the positioning and fastening device, so that the connection stability is improved and the ammonia gas is prevented from overflowing at the joint; and finally, an anti-overflow device is arranged at the bottom of the tertiary gas distributor to prevent ammonia from overflowing at the tertiary gas distributor, so that the oxidation of the ammonia is further improved, and the leakage is prevented.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic structural diagram of a distributor of a multi-layer distributed ammoxidation furnace provided in the embodiment of the present invention.
Fig. 2 is a schematic view of an anti-overflow device provided in the embodiment of the present invention.
Fig. 3 is a schematic view of an upper end positioning and fastening device provided in an embodiment of the present invention.
Fig. 4 is a schematic view of a lower end positioning and fastening device provided in the embodiment of the present invention.
Fig. 5 is a schematic view of a top positioning and fastening device provided in an embodiment of the present invention.
The device comprises a shell-1, a three-stage gas distributor-2, a first distributor-21, a second distributor-22, a third distributor-23, a suspender-3, an anti-overflow device-4, a pressing plate-41, a flow guide ring-42, a support ring-43, a pressing ring-44, a positioning and fastening device-5, an upper end positioning and fastening device-51, a straight plate-511, a lower end positioning and fastening device-52, a folded plate-521, a vertical plate-522, a top positioning and fastening device-53, a connecting plate-531 and a positioning ring-6.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
Example 1
Referring to FIGS. 1-5, the present embodiment provides a distributor for a multi-layered distributed ammoxidation furnace, comprising
A housing 1;
the three-stage gas distributor 2 is arranged in the shell 1 by being hoisted and supported by a hoisting rod 3; the two ends of the suspender 3 are both provided with a positioning and fastening device 5; and
the overflow prevention device 4 is located inside the housing 1 and is disposed on the tertiary gas distributor 2.
In this embodiment, the housing 1 is composed of an upper cylinder and an upper end enclosure, the upper cylinder and the upper end enclosure are made of stainless steel, the lower end of the upper cylinder is provided with an equipment connecting flange, the equipment connecting flange is made of a steel forging, and the equipment connecting flange is connected with the lower large flange by bolts. The center of the upper end enclosure is welded with a gas inlet pipe which is a main material inlet interface of the ammonia oxidation furnace equipment.
For further optimizing the embodiment, the three-stage gas distributor 2 includes a first distributor 21, a second distributor 22 and a third distributor 23 which are arranged from top to bottom; the first distributor, the second distributor and the third distributor are all provided with air distribution holes, wherein the diameters of the air distribution holes on the first distributor and the second distributor are the same; the diameter of the air distribution holes on the third distributor is smaller than that of the air distribution holes on the second distributor. And the three-level gas distributor 2 in the embodiment is hoisted and supported by the plurality of suspenders 3 to increase the supporting uniformity of the three-level gas distributor 2, so that the three-level gas distributor is not easy to deform.
For further optimizing the present embodiment, it is proposed that the positioning and fastening device 5 comprises an upper end positioning and fastening device 51 and a lower end positioning and fastening device 52; the upper end positioning and fastening device 51 is connected with the shell 1 through the positioning ring 6; the lower positioning and fastening means 52 are directly connected to the third distributors 23.
In the embodiment, the hanger rod 3 is connected with the shell 1 and the third distributor 23 by the upper end positioning and fastening device 51 and the lower end positioning and fastening device 52 respectively, so that the connection stability is improved, and the ammonia gas is prevented from overflowing at the connection position.
To further optimize the present embodiment, it is proposed that the upper positioning and fastening device 51 comprises a straight plate 511; one end of the straight plate 511 is connected with the upper part of the suspender 3, and the other end is fixed on the positioning ring 6.
In this embodiment, the straight plate 511 can be understood as being fixed to the positioning ring 6 by a bolt and nut structure.
To further optimize the present embodiment, it is proposed that the lower end positioning and fastening means 52 comprise a flap 521 and a riser 522; the flap 521 is connected at one end to the underside of the hanger bar 3 and at the other end is fixed to the third distributor 23 by a riser 522.
In this embodiment, one end of the flap 521 can be understood as being connected below the hanger bar 3 by a bolt and nut structure. The other end of the flap 521 is connected to a vertical plate 522 by bolts and nuts, and the vertical plate 522 is fixed to the third distributor 23.
In order to further optimize the embodiment, the spill-proof device 4 includes a pressure plate 41, a flow guiding ring 42, a supporting ring 43 and a pressing ring 44; wherein the flow guide ring 42 is arranged outside the support ring 43 and is connected with the shell 1; the pressing plate 41 is fixedly arranged on the support ring 43; the pressing ring 44 is disposed inside the support ring 43 between the support ring 43 and the third distributor 23.
For further optimization of the present embodiment, it is proposed that the positioning and fastening device 5 further comprises a top positioning and fastening device 53; wherein the upper end of the suspender 3 is connected to the shell 1 through a top positioning and fastening device 53, and the lower end of the suspender 3 is connected to the middle part of the third distributor 23.
To further optimize the present embodiment, the top positioning and fastening device 53 at least comprises a connecting plate 531; the connecting plate 531 is welded on the housing 1; one end of the suspender 3 is connected on the connecting plate 531 through a bolt screw hole.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present embodiment, and it will be apparent to those skilled in the art that various modifications and variations can be made in the present embodiment. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present embodiment should be included in the protection scope of the present embodiment.
Claims (8)
1. A distributor of a multilayer distributed ammonia oxidation furnace is characterized by comprising
A housing;
the three-stage gas distributor is arranged in the shell by hoisting and supporting through a hoisting rod; positioning and fastening devices are arranged at the two ends of the hanging rod; and
and the anti-overflow device is positioned in the shell and is arranged on the tertiary gas distributor.
2. The distributor of claim 1, wherein the three-stage gas distributor comprises a first distributor, a second distributor and a third distributor arranged in sequence from top to bottom; air distribution holes are formed in the first distributor, the second distributor and the third distributor, wherein the diameters of the air distribution holes in the first distributor and the second distributor are the same; the diameter of the air distribution holes on the third distributor is smaller than that of the air distribution holes on the second distributor.
3. A distributor as defined in claim 2, wherein the locating fastening means comprises an upper end locating fastening means and a lower end locating fastening means; the upper end positioning and fastening device is connected with the shell through a positioning ring; the lower end positioning and fastening device is directly connected with the third distributor.
4. A distributor as defined in claim 3, wherein the upper positioning and fastening means comprises a straight plate; one end of the straight plate is connected with the upper part of the hanging rod, and the other end of the straight plate is fixed on the positioning ring.
5. A distributor as defined in claim 3 wherein the lower end positioning fastening means comprises a flap and a riser; one end of the folded plate is connected with the lower part of the hanging rod, and the other end of the folded plate is fixed on the third distributor through the vertical plate.
6. The distributor according to any one of claims 2 to 5, wherein the overflow preventing device comprises a pressure plate, a flow guide ring, a support ring and a pressure ring; the guide ring is arranged on the outer side of the support ring and is connected with the shell; the pressing plate is fixedly arranged on the supporting ring; the clamping ring is arranged on the inner side of the support ring and located between the support ring and the third distributor.
7. A distributor as defined in claim 3, wherein the positioning fastening means further comprises a top positioning fastening means; the upper end of the suspender is connected to the shell through the top positioning and fastening device, and the lower end of the suspender is connected to the middle part of the third distributor.
8. A distributor according to claim 7, wherein the top positioning fastening means comprise at least a connecting plate; the connecting plate is welded on the shell; one end of the suspender is connected to the connecting plate through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123011534.9U CN216614055U (en) | 2021-12-02 | 2021-12-02 | Multilayer distributed ammonia oxidation furnace distributor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123011534.9U CN216614055U (en) | 2021-12-02 | 2021-12-02 | Multilayer distributed ammonia oxidation furnace distributor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216614055U true CN216614055U (en) | 2022-05-27 |
Family
ID=81701136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123011534.9U Active CN216614055U (en) | 2021-12-02 | 2021-12-02 | Multilayer distributed ammonia oxidation furnace distributor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216614055U (en) |
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2021
- 2021-12-02 CN CN202123011534.9U patent/CN216614055U/en active Active
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