CN205435434U - Device of drying and absorption towers flue gas pipeline export deacidification - Google Patents
Device of drying and absorption towers flue gas pipeline export deacidification Download PDFInfo
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- CN205435434U CN205435434U CN201521127040.9U CN201521127040U CN205435434U CN 205435434 U CN205435434 U CN 205435434U CN 201521127040 U CN201521127040 U CN 201521127040U CN 205435434 U CN205435434 U CN 205435434U
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- flue
- acid
- outlet
- deacidification
- tower
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Abstract
The utility model relates to a device of drying and absorption towers flue gas pipeline export deacidification. The sour problem that causes the corruption to chemical pipeline and equipment in drying and absorption towers flue gas pipeline export area has mainly been solved. Including the tower body, the nicotinic acid that is located the acid distributor of tower and is located tower upper portion exports, the nicotinic acid exit be connected with flue gas pipeline, this flue gas pipeline is the slope form, the flue gas pipeline exit is higher than the nicotinic acid exit, the flue gas pipeline exit be equipped with the flue gas pipeline demister, nicotinic acid export and flue gas pipeline demister between the pipe wall on, the intercommunication has sour recovery unit, this acid recovery unit passes the tower body and the interior acid distributor of tower communicates. Prevented effectively that drying and absorption towers flue gas pipeline export area acid from causing the corruption to subsequent chemical pipeline and equipment.
Description
Technical field
This utility model relates to the equipment of the dry desorption system of a kind of sulphuric acid, is specifically related to the device of a kind of dry absorption tower flue outlet deacidification.
Background technology
In the dry desorption system of sulphuric acid, containing SO3Flue gas inlet/outlet flue laggard with concentrated sulfuric acid solution precursor reactant in dry absorption tower, can entrained liquids because of various reasons, cause the corrosion of subsequent pipeline and equipment, cause system to be had to parking overhaul what is more, cause great economic loss.Cause dry absorption tower flue outlet band acid reason have a variety of, as system design unreasonable, empty tower gas velocity is too high；Flue bore is excessive or too small；User increases yield, beyond the scope of design；Demister is bad except fog effect, does not reaches design requirement；Acid trap divides acid effect bad, gas-liquid short circuit；Packing layer design is unreasonable, use the various reasons such as lack of standardization.Therefore, need a kind of device of design badly, for solving the problem that chemical pipeline and equipment are caused corrosion by the outlet band acid of dry absorption tower flue.
Utility model content
In order to overcome the deficiency of background technology, this utility model provides the device of a kind of dry absorption tower flue outlet deacidification, mainly solves the problem that chemical pipeline and equipment are caused corrosion by the outlet band acid of dry absorption tower flue.
This utility model be the technical scheme is that the device of a kind of dry absorption tower flue outlet deacidification, including tower body, the acid trap being positioned at tower and the nicotinic acid being positioned at tower top outlet, described nicotinic acid exit connects flue, this flue is skewed, and flue exit is higher than nicotinic acid exit；Described flue exit is provided with flue demister；
On the described tube wall between nicotinic acid outlet and flue demister, being communicated with acid-restoring plant, this acid-restoring plant connects through tower body with the acid trap in tower.
Further, described acid-restoring plant includes that acid recovery funnel and acid recovery pipeline, described acid recovery funnel connect with flue, and described acid recovery pipeline connects with acid recovery funnel and tower body the most respectively.
Further, it is provided with U-shaped liquid sealing pipe between described acid recovery funnel and acid recovery pipeline.
Further, described acid recovery pipeline rear portion is horizontal pipeline, and this section of tubing and tower body connectivity part have angle of inclination.
Further, described flue angle of inclination is 3 °-7 °.
Further, described flue and acid-restoring plant are corrosion resistant alloy material
Further, described alloy material is to select rare-earth element modified austenitic stainless steel.
Further, described flue is welded to connect with nicotinic acid outlet employing.
Further, the distance at described acid recovery funnel and flue demister is less than and the distance of nicotinic acid outlet.
The beneficial effects of the utility model are: effectively prevent the outlet band acid of dry absorption tower flue and follow-up chemical pipeline and equipment are caused corrosion；Liquid sealing pipe is used to be possible to prevent the refluence of nicotinic acid；Rare-earth element modified austenitic stainless steel is used to improve the corrosion resistance of flue and acid-restoring plant.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present utility model.
In figure 1, tower body；2, acid trap；3, nicotinic acid outlet；4, flue；41, flue demister；5, acid-restoring plant；51, acid recovery funnel；52, acid recovery pipeline；53, U-shaped liquid sealing pipe.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model embodiment is described further:
Such as Fig. 1, the device of a kind of dry absorption tower flue outlet deacidification, export 3 including tower body 1, the acid trap 2 being positioned at tower and the nicotinic acid being positioned at tower top,
Described nicotinic acid exports to connect at 3 flue 4, this flue 4 is skewed, flue 4 exit exports at 3 higher than nicotinic acid, described flue 4 angle of inclination is 3 °-7 °, described flue 4 exit is provided with flue demister 41, and flue 4 and the flue demister 41 of inclination can stop acid solution, after being gathered on flue 4 tube wall, owing to being obliquely installed, can naturally reflux；On the described tube wall between nicotinic acid outlet 3 and flue demister 41, being communicated with acid-restoring plant 5, collect the acid solution of natural back flow, this acid-restoring plant 5 connects through tower body 1 with the acid trap 2 in tower.Described acid-restoring plant 5 includes that acid recovery funnel 51 and acid recovery pipeline 52, described acid recovery funnel 51 connect with flue 4, and described acid recovery pipeline about 52 connects with acid recovery funnel 51 and tower body 1 respectively.U-shaped liquid sealing pipe 53 it is provided with between described acid recovery funnel 51 and acid recovery pipeline 52.Described acid recovery pipeline 52 rear portion is horizontal pipeline, and this section of tubing and tower body 1 connectivity part have angle of inclination, and the setting at angle of inclination is back to acid trap also for preferably acid solution.Described flue 4 and acid-restoring plant 5 are corrosion resistant alloy material, and described alloy material is to select rare-earth element modified austenitic stainless steel, and material detailed content sees Chinese patent CN200410041193.1, has more preferable anticorrosion effect.
Described flue 4 is welded to connect with nicotinic acid outlet 3 employing.Distance at described acid recovery funnel 51 and flue demister 41 is less than and the distance of nicotinic acid outlet 3.Such being disposed to shortens the stroke that acid solution flows through, such that it is able to prevent acid solution from resting on the most for a long time on tube wall, corrosiveness long to tube wall.
The beneficial effects of the utility model are: effectively prevent the outlet band acid of dry absorption tower flue and follow-up chemical pipeline and equipment are caused corrosion；U-shaped liquid sealing pipe is used to be possible to prevent the refluence of nicotinic acid；Rare-earth element modified austenitic stainless steel is used to improve the corrosion resistance of flue and acid-restoring plant.
Every technical staff's notice: although this utility model describes according to above-mentioned detailed description of the invention; but utility model thought of the present utility model is not limited to that utility model; the repacking of any utilization this utility model thought, all will include in this patent scope of patent protection.
Claims (9)
1. a device for dry absorption tower flue outlet deacidification, including tower body, the acid trap being positioned at tower and the nicotinic acid being positioned at tower top outlet, it is characterised in that:
Described nicotinic acid exit connects flue, and this flue is skewed, and flue exit is higher than nicotinic acid exit；Described flue exit is provided with flue demister；
On the described tube wall between nicotinic acid outlet and flue demister, being communicated with acid-restoring plant, this acid-restoring plant connects through tower body with the acid trap in tower.
The device of a kind of dry absorption tower flue the most according to claim 1 outlet deacidification, it is characterized in that: described acid-restoring plant includes acid recovery funnel and acid recovery pipeline, described acid recovery funnel connects with flue, and described acid recovery pipeline connects with acid recovery funnel and tower body the most respectively.
The device of a kind of dry absorption tower flue the most according to claim 2 outlet deacidification, it is characterised in that: it is provided with U-shaped liquid sealing pipe between described acid recovery funnel and acid recovery pipeline.
The device of a kind of dry absorption tower flue the most according to claim 1 and 2 outlet deacidification, it is characterised in that: described acid recovery pipeline rear portion is horizontal pipeline, and this section of tubing and tower body connectivity part have angle of inclination.
The device of a kind of dry absorption tower flue the most according to claim 1 outlet deacidification, it is characterised in that: described flue angle of inclination is 3 °-7 °.
The device of a kind of dry absorption tower flue the most according to claim 1 outlet deacidification, it is characterised in that: described flue and acid-restoring plant are corrosion resistant alloy material.
The device of a kind of dry absorption tower flue the most according to claim 6 outlet deacidification, it is characterised in that: described alloy material is to select rare-earth element modified austenitic stainless steel.
The device of a kind of dry absorption tower flue the most according to claim 1 outlet deacidification, it is characterised in that: described flue is welded to connect with nicotinic acid outlet employing.
The device of a kind of dry absorption tower flue the most according to claim 2 outlet deacidification, it is characterised in that: the distance at described acid recovery funnel and flue demister is less than and the distance of nicotinic acid outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521127040.9U CN205435434U (en) | 2015-12-30 | 2015-12-30 | Device of drying and absorption towers flue gas pipeline export deacidification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521127040.9U CN205435434U (en) | 2015-12-30 | 2015-12-30 | Device of drying and absorption towers flue gas pipeline export deacidification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205435434U true CN205435434U (en) | 2016-08-10 |
Family
ID=56598384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521127040.9U Expired - Fee Related CN205435434U (en) | 2015-12-30 | 2015-12-30 | Device of drying and absorption towers flue gas pipeline export deacidification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205435434U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457476A (en) * | 2015-12-30 | 2016-04-06 | 浙江宣达特种合金流程装备股份有限公司 | Device for acid removal of dry absorption tower flue gas pipeline outlet |
-
2015
- 2015-12-30 CN CN201521127040.9U patent/CN205435434U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105457476A (en) * | 2015-12-30 | 2016-04-06 | 浙江宣达特种合金流程装备股份有限公司 | Device for acid removal of dry absorption tower flue gas pipeline outlet |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20191230 |