CN201147669Y - Alcaine falling film absorbing tower - Google Patents
Alcaine falling film absorbing tower Download PDFInfo
- Publication number
- CN201147669Y CN201147669Y CNU2007201873212U CN200720187321U CN201147669Y CN 201147669 Y CN201147669 Y CN 201147669Y CN U2007201873212 U CNU2007201873212 U CN U2007201873212U CN 200720187321 U CN200720187321 U CN 200720187321U CN 201147669 Y CN201147669 Y CN 201147669Y
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- China
- Prior art keywords
- absorption tower
- port
- falling
- hydrochloric acid
- film
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- Expired - Fee Related
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Abstract
The utility model relates to a hydrochloric-acid falling-film absorption tower, in particular relates to a falling-film absorption tower that is used for the production of the hydrochloric acid, which is characterized in that a Tee-typed pipe body structure is firmly connected with a chlorine hydride gas entrance end that is arranged on the top of the absorption tower; two through holes are arranged in the vertical direction, wherein, one of the through holes is connected with an inlet that is arranged at the top of an absorption-tower shell, and the upper through hole is covered by an asbestos plate; a through-hole pipe on the horizontal direction is connected with a chlorine hydride pipeline. The absorption tower of the utility model effectively prevents the emergent accident that is caused by extraordinary high pressure of the furnace, low purity of the chlorine gas and the hydrogen, excess hydrogen, etc. from damaging the equipment body.
Description
Technical field
A kind of hydrochloric acid film-falling absorption tower relates to a kind of film-falling absorption tower that hydrochloric acid is produced that is used for.
Background technology
In hydrochloric acid is produced, liquid chlorine tail gas and the hydrogen synthesizing chlorinated hydrogen that in graphitic synthetic furnace, burns, enter film-falling absorption tower absorption generation hydrochloric acid by condenser and enter storage tank, film-falling absorption tower adopts unit graphite heat transfer block splicing construction, absorb sour water and contact synthetic hydrochloric acid with hydrogen chloride gas following current in the graphite interlayer, after the hydrogen chloride that has not absorbed feeds the further absorption of tail gas tower, the tail gas emptying, feed condensed water in the runner between apparatus casing and graphite inner bag to reduce temperature, improve assimilation effect, in this process, film-falling absorption tower can exist explosion danger to cause the paralysed bad of equipment damage and whole system when following reason appears in film-falling absorption tower:
(1) can cause the device interior hypertonia under the influence of factor such as, condensed water condensation effect difference excessive, thereby blast when inventory in the synthetic furnace body of heater.
(2) be lower than 65% in purity of chlorine gas feeding, hydrogen purity is lower than under 97% the situation, the equipment accident of can blasting.
(3) material proportion of chlorine and hydrogen is 1: 1.1～1.15, when hydrogen is excessive, and the equipment accident of can blasting.
Summary of the invention
The purpose of this utility model is exactly the deficiency that exists at above-mentioned prior art, and a kind of hydrochloric acid film-falling absorption tower of exploding and taking place of can effectively preventing is provided.
The purpose of wood utility model is achieved through the following technical solutions.
A kind of hydrochloric acid film-falling absorption tower, its structure comprise cylindrical structure absorption tower housing 4, be positioned at the absorption tower inner walls graphite interlayer 5, be positioned at absorption tower housing sidewall upside absorption liquid inlet 6, be positioned at residual gas outlet 7 on the lower housing portion sidewall of absorption tower, be positioned at the hydrochloric acid floss hole of housing lower bottom part; The HCI gas inlet end that it is characterized in that being positioned on the cat head of absorption tower is connected with a three way type pipe structure, in vertical direction two ports is arranged, and the air inlet of one of them and absorption tower case top joins, and the port that is positioned at the upper end is by the asbestos board capping; Port pipe in the horizontal direction connects with the hydrogen chloride pipeline.
A kind of hydrochloric acid film-falling absorption tower of the present utility model, it is characterized in that described be sealed on the port of three-port structure upper end asbestos board since the flange that port is provided with and flange ring grip.
In the hydrochloric acid production process, the film-falling absorption tower operating pressure is 0.15MPa, test pressure is 0.225MPa, adopt the method for PV product and the classification of the medium extent of injury according to " safe technology of pressure vessel supervision rules ", film-falling absorption tower is three class medium pressure vessels, under the effect of interior pressure p, to produce the stress of three directions on the falling film absorption inner wall of tower: the one, because interior pressure acts on the axial stress on the end socket, the 2nd, because the tension that interior pressure effect is evenly outwards expanded inwall, the 3rd, along the radial stress of wall thickness direction generation, from practical experience, the falling-film tower accident of blasting mainly is that axial stress causes, according to:
Following formula kind: p is interior pressure, and D is a face diameter in the housing, and t is the housing wall thickness
Axial stress was 0.525MPa when falling film absorption tower shell upper cover place normally moved, and its limit stress that can bear is 0.7875MPa, and its allowable stress of asbestos board [σ of the 5mm that installs additional in hydrogen chloride gas exit, falling-film tower absorption tower
t]=0.632MPa, because
Can effectively protect when therefore the riot gear of falling-film tower outlet breaks down in system equipment and process system.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
The specific embodiment
A kind of hydrochloric acid film-falling absorption tower, its structure comprise cylindrical structure absorption tower housing 4, be positioned at the absorption tower inner walls graphite interlayer 5, be positioned at absorption tower housing sidewall upside absorption liquid inlet 6, be positioned at residual gas outlet 7 on the lower housing portion sidewall of absorption tower, be positioned at the housing lower bottom part hydrochloric acid floss hole 8 is arranged; The HCI gas inlet end that it is characterized in that being positioned on the cat head of absorption tower is connected with a three way type body 1 structure, in vertical direction two ports is arranged, and the air inlet of one of them and absorption tower case top joins, and the port that is positioned at the upper end is by asbestos board capping 2; Port pipe 3 in the horizontal direction connects with the hydrogen chloride pipeline.Described be sealed on the port of three-port structure upper end asbestos board since the flange that port is provided with and flange ring 9 grip.
During production, the hydrogen chloride porch on cat head connects a PVC three-port structure, and the thick circular asbestos board of 5mm is set at the top of threeway, uses flange screw.The hydrogen chloride gas that condenser comes out is entered the graphite interlayer of film-falling absorption tower by threeway place side; contact synthetic hydrochloric acid with diluted acid following current from tail gas tower; when too high in the system, chlorine with hydrogen purity is low or material proportion is improper etc. when factor causes pressure anomaly owing to furnace pressure; the gases at high pressure that film-falling absorption tower inside produced in the extremely short time; the asbestos board that can will be arranged on PVC threeway top is being lower than under the limiting pressure of equipment explosion by explosion; get rid of gases at high pressure, play the effect of protection equipment.
Claims (2)
1. hydrochloric acid film-falling absorption tower, its structure comprise cylindrical structure the absorption tower housing, be positioned at the absorption tower inner walls the graphite interlayer, be positioned at absorption tower housing sidewall upside the absorption liquid inlet, be positioned at residual gas outlet on the lower housing portion sidewall of absorption tower, be positioned at the hydrochloric acid floss hole of housing lower bottom part; The HCI gas inlet end that it is characterized in that being positioned on the cat head of absorption tower is connected with a three way type pipe structure, in vertical direction two ports is arranged, and the air inlet of one of them and absorption tower case top joins, and the port that is positioned at the upper end is by the asbestos board capping; Port pipe in the horizontal direction connects with the hydrogen chloride pipeline.
2. a kind of hydrochloric acid film-falling absorption tower according to claim 1, it is characterized in that described be sealed on the port of three-port structure upper end asbestos board since the flange that port is provided with and flange ring grip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201873212U CN201147669Y (en) | 2007-12-20 | 2007-12-20 | Alcaine falling film absorbing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201873212U CN201147669Y (en) | 2007-12-20 | 2007-12-20 | Alcaine falling film absorbing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201147669Y true CN201147669Y (en) | 2008-11-12 |
Family
ID=40115437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201873212U Expired - Fee Related CN201147669Y (en) | 2007-12-20 | 2007-12-20 | Alcaine falling film absorbing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201147669Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398595A (en) * | 2013-07-29 | 2013-11-20 | 南通佳杉精细石墨科技有限公司 | Cooling tower |
| CN112742182A (en) * | 2020-12-22 | 2021-05-04 | 南通润中石墨设备有限公司 | Gas-liquid separation system of HCL falling film absorber |
-
2007
- 2007-12-20 CN CNU2007201873212U patent/CN201147669Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103398595A (en) * | 2013-07-29 | 2013-11-20 | 南通佳杉精细石墨科技有限公司 | Cooling tower |
| CN103398595B (en) * | 2013-07-29 | 2016-08-10 | 南通佳杉精细石墨科技有限公司 | Cooling tower |
| CN112742182A (en) * | 2020-12-22 | 2021-05-04 | 南通润中石墨设备有限公司 | Gas-liquid separation system of HCL falling film absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081112 Termination date: 20121220 |