CN201857266U - Outlet manifold for middle wall pipe group of oxidation furnace annually producing three hundred thousand tons of nitric acid - Google Patents
Outlet manifold for middle wall pipe group of oxidation furnace annually producing three hundred thousand tons of nitric acid Download PDFInfo
- Publication number
- CN201857266U CN201857266U CN2010205449156U CN201020544915U CN201857266U CN 201857266 U CN201857266 U CN 201857266U CN 2010205449156 U CN2010205449156 U CN 2010205449156U CN 201020544915 U CN201020544915 U CN 201020544915U CN 201857266 U CN201857266 U CN 201857266U
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- CN
- China
- Prior art keywords
- outlet manifold
- nitric acid
- outlet header
- pipe group
- wall pipe
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- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses an outlet manifold for a middle wall pipe group of an oxidation furnace annually producing three hundred thousand tons of nitric acid, and relates to chemical production equipment. The outlet manifold comprises an outlet manifold body which is a straight pipe, a seal head is arranged at one end of the outlet manifold body, a reducer connecting pipe is arranged at the other end of the outlet manifold body, an exhaust pipe is arranged at the top of the outlet manifold body, and a row of exhaust holes is arranged at the bottom of the outlet manifold body. As the exhaust pipe is arranged at the top of the outlet manifold body, and the row of exhaust holes is arranged at the bottom of the outlet manifold body, the outlet manifold is more applicable to the oxidation furnace annually producing three hundred thousand tons of nitric acid, and is capable of more effectively collecting steam in grouped coil pipes of the middle wall pipe group and then conveying the steam into a steam pocket, so that the steam is flashed into saturated steam and used for subsequent working procedures.
Description
Technical field
The utility model relates to a kind of chemical production equipment, relates in particular to a kind of outlet header of 300,000 tons of nitric acid with the stage casing wall pipe group of oxidized still that be used to produce per year.
Background technology
Single cover maximum productivity of present domestic double pressurized method nitric acid plant is for producing the device of 150,000 tons of scales per year, its converter for ammonia oxidation is the key equipment in the nitric acid production, in reaction, both needed suitable temperature to keep the continuous operation of reaction in the oxidized still, also must effectively control simultaneously temperature in the stove, too high temperature at first can shorten equipment life even damage equipment, the supporting mechanism easy deformation of platinum net catalyst influences the work-ing life of platinum net under the while high temperature, increases production cost greatly.Along with the continuous progress of production equipment, require the cry of the single cover of expansion nitric acid production ability continuous, existing oxidized still can not satisfy people's needs.In oxidized still, the effect of outlet header is the vapor collection in the coil pipe that respectively divides into groups of stage casing wall pipe group to be gathered to be transported to then flash to saturation steam in the drum for operation use thereafter.And existing outlet header can not be applicable to the oxidized still device of 300,000 tons of scales of annual output, needs a kind of new outlet header structure of design, to adapt to industrial needs.
The utility model content
Problem at above-mentioned prior art existence, the utility model provides a kind of outlet header of 300,000 tons of nitric acid with the stage casing wall pipe group of oxidized still that be used to produce per year, it can more effectively gather the vapor collection in the coil pipe that respectively divides into groups of stage casing wall pipe group to be transported to then and flashes to saturation steam in the drum and use for operation thereafter, can better be applicable to and produce 300000 tons of oxidized stills that nitric acid is used per year.
The technical solution of the utility model is: a kind of outlet header that is used to produce per year 300,000 tons of nitric acid with the stage casing wall pipe group of oxidized stills, it comprises outlet header main body, described outlet header main body is a straight tube, the one end is provided with end socket, the other end is provided with reducer and takes over, outlet header main body top is provided with a vapor pipe, and outlet header bottom part body has several rows of pore.
The beneficial effects of the utility model are: because outlet header main body top is provided with a vapor pipe, outlet header bottom part body has several rows of pore, can better be applicable to and produce 300000 tons of oxidized stills that nitric acid is used per year, can more effectively the vapor collection in the coil pipe that respectively divides into groups of stage casing wall pipe group be gathered to be transported to then and flash to saturation steam in the drum for operation use thereafter.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
As a kind of embodiment of the present utility model, as shown in Figure 1, a kind of outlet header that is used to produce per year 300,000 tons of nitric acid with the stage casing wall pipe group of oxidized stills, respectively the divide into groups outlet of coil pipe connects header to described outlet header as stage casing wall pipe group, it comprises outlet header main body 1, the straight tube that described outlet header main body 1 is made for carbon steel tubing, and the one end is provided with end socket 2, the other end is provided with reducer and takes over 3, is used for directly being connected with external pipe.Outlet header main body 1 top is provided with a vapor pipe 4, and outlet header main body 1 bottom has several rows of pore 5.The effect of described outlet header is the steam in the coil pipe that respectively divides into groups of stage casing wall pipe group to be collected to gather to be transported to then flash to saturated vapo(u)r in the drum for processing apparatus use thereafter.In the present embodiment, described venting hole 5 is seven, is arranged at the bottom of outlet header main body 1.
Claims (1)
1. one kind is used to produce per year the outlet header of 300,000 tons of nitric acid with the stage casing wall pipe group of oxidized still, it is characterized in that: it comprises outlet header main body (1), described outlet header main body (1) is a straight tube, the one end is provided with end socket (2), the other end is provided with reducer and takes over (3), outlet header main body (1) top is provided with a vapor pipe (4), and outlet header main body (1) bottom has several rows of pore (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205449156U CN201857266U (en) | 2010-09-27 | 2010-09-27 | Outlet manifold for middle wall pipe group of oxidation furnace annually producing three hundred thousand tons of nitric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205449156U CN201857266U (en) | 2010-09-27 | 2010-09-27 | Outlet manifold for middle wall pipe group of oxidation furnace annually producing three hundred thousand tons of nitric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201857266U true CN201857266U (en) | 2011-06-08 |
Family
ID=44103079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205449156U Expired - Fee Related CN201857266U (en) | 2010-09-27 | 2010-09-27 | Outlet manifold for middle wall pipe group of oxidation furnace annually producing three hundred thousand tons of nitric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201857266U (en) |
-
2010
- 2010-09-27 CN CN2010205449156U patent/CN201857266U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110608 Termination date: 20150927 |
|
| EXPY | Termination of patent right or utility model |