CN204503690U - Concentrated sulfuric acid blowing pipeline device - Google Patents
Concentrated sulfuric acid blowing pipeline device Download PDFInfo
- Publication number
- CN204503690U CN204503690U CN201520061162.6U CN201520061162U CN204503690U CN 204503690 U CN204503690 U CN 204503690U CN 201520061162 U CN201520061162 U CN 201520061162U CN 204503690 U CN204503690 U CN 204503690U
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- Prior art keywords
- pipeline
- sulfuric acid
- storage tank
- dosing vessel
- centrifugal pump
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of concentrated sulfuric acid blowing pipeline device, and this device comprises storage tank, valve, pipeline, liquid level gauge, centrifugal pump, elevated dosing vessel, air compression system.The utility model has the advantage of: at the end of getting the raw materials ready from sulfuric acid storage tank to the elevated dosing vessel at use position, use pipe-line system blow device, the sulfuric acid accumulated in the duct after getting the raw materials ready all can be pushed back sulfuric acid storage tank, solve from root and easily produce Crystallization Plugging problem at temperature lower than using sulfuric acid process pipeline when 10 DEG C, be conducive to producing normal and safety, the design takes full advantage of existing equipment and pipeline solves present problem.
Description
Technical field
The utility model relates to technical field of chemical, especially a kind of concentrated sulfuric acid blowing pipeline device.
Background technology
Bright sulfur acid is a kind of colorless and odorless oily liquids.In the conventional concentrated sulfuric acid, the mass fraction of H2SO4 is 98.3%, and its density is 1.84gcm-3, and its substance withdrawl syndrome is 18.4molL-1.When 98.3%, fusing point: 10 DEG C; Boiling point: 338 DEG C.Because in the concentrated sulfuric acid, containing a large amount of unionized sulfuric acid molecule, (acid molecule in strong acid solution is not necessarily all ionized into ion, the power of acid is relative), so the concentrated sulfuric acid has the special natures such as water imbibition, dehydration property (being commonly called as charing, i.e. corrosivity) and strong oxidizing property.
Sulfuric acid is widely used in chemical field, is a kind of basic material in chemical process.As multiple process of producing product such as our company's tetrazoleacetic acid, DL-phenylglycine will adopt the concentrated sulfuric acid to carry out esterification, neutralization reaction.Sulfuric acid need be transported to production station elevated dosing vessel (elevated dosing vessel and sulfuric acid storage tank have the concavo-convex liquid level difference of about 8 meters) from the sulfuric acid centrifugal pump the concentrated sulfuric acid storage tank of raw material tank field by production station by the road, then drops into post and uses.Pipeline occurs from underground or from overhead upper laying when installing unavoidably, and pipeline is longer.So after getting the raw materials ready, in sulfuric acid pipeline, a large amount of concentrated sulfuric acids will certainly be left.Along with winter arrives, the decline of temperature, the concentrated sulfuric acid in pipeline along with the low and crystallization of temperature, will cause line clogging, causes the concentrated sulfuric acid to get the raw materials ready difficulty, directly affects safety in production.
In recent years, there is a lot of security incident in chemical industry sulfate system because of blocking.Its reason runs into line clogging, usually will take system appearance heating dredging mode, in system heating dredging process, operating personnel will climb up overhead (work high above the ground) unavoidably,, when system is not smooth at portions under heat, there is facility explosion risk in embedded underground section heating difficulty.
Summary of the invention
The purpose of this utility model is to provide from sulfuric acid holding vessel to the whole pipe-line system blow device in use position, and this device can solve from root and easily produce Crystallization Plugging problem at temperature lower than using sulfuric acid process pipeline when 10 DEG C.
The technical solution of the utility model is: a kind of concentrated sulfuric acid blowing pipeline device, and this device comprises storage tank, valve, pipeline, liquid level gauge, centrifugal pump, elevated dosing vessel, air compression system; Tank top has charging aperture, drain, manhole, purging refluxing opening, storage tank side is provided with liquid level gauge, liquid level gauge is connected to the liquid level gauge hole that 15cm place respectively has at the bottom of tank from tank roof 15cm and vertical line, and storage tank opposite side has discharging opening from 15cm place, bottom, and manhole adopts movable manhole cover; Reservoir outlet connects centrifugal pump charging aperture by pipeline, and the pipeline of storage tank and centrifugal pump is provided with the purging refluxing opening that threeway and return duct are connected to tank top, fills valve purging on return duct; Centrifugal pump discharging opening connects elevated dosing vessel by pipeline, a road pipeline bypass is provided with between centrifugal pump charging aperture and discharging opening, on elevated dosing vessel, there are charging aperture, drain, liquid level gauge hole in position, elevated dosing vessel bottom discharge mouth, the feed pipe on elevated dosing vessel side is provided with threeway, be connected air compression system by threeway with pipeline, at each import and export place, valve be housed.
The utility model has the advantage of: at the end of getting the raw materials ready from sulfuric acid storage tank to the elevated dosing vessel at use position, use pipe-line system blow device, the sulfuric acid accumulated in the duct after getting the raw materials ready all can be pushed back sulfuric acid storage tank, solve from root and easily produce Crystallization Plugging problem at temperature lower than using sulfuric acid process pipeline when 10 DEG C, be conducive to producing normal and safety, the design takes full advantage of existing equipment and pipeline solves present problem.
Accompanying drawing explanation
Fig. 1 is the utility model concentrated sulfuric acid blowing pipeline apparatus structure schematic diagram.
In figure:
1 air compression pipeline; 2,3,6,9,12,14,15,17,19,21,22,23,25,28 valves; 4,26 sulfuric acid storage tanks are to elevated dosing vessel feed pipe; 5 elevated dosing vessel exhausting pipelines; 7 elevated dosing vessel level indicators; 8 elevated dosing vessels; 10 elevated dosing vessel discharge pipes; 11 sulfuric acid storage tank feed pipes; 13 sulfuric acid storage tank manholes; 16 purge reflux line; 18 sulfuric acid storage tanks; 20 sulfuric acid storage tank level indicators; 24 centrifugal pumps; 27 purge bypass line.
Detailed description of the invention
A kind of concentrated sulfuric acid blowing pipeline device, this device comprises storage tank, valve, pipeline, liquid level gauge, centrifugal pump, elevated dosing vessel, air compression system.Sulfuric acid storage tank top has DN100 charging aperture, DN50 drain, DN300 manhole, DN50 to purge refluxing opening, from tank roof 15cm and vertical line, at the bottom of tank, 15cm place respectively has one, DN15 liquid level gauge hole, opposite, storage tank liquid-level meter hole has DN50 discharging opening far from 15cm place, bottom, at each import and export, valve is housed, manhole adopts movable manhole cover.After reservoir outlet valve, join DN50 pipeline to centrifugal pump charging aperture, storage tank discharge valve to the pipeline of centrifugal pump is opened a Ф 50cm openning, openning welds DN50 pipeline to tank top refluxing opening, return duct fills a DN50 valve.Centrifugal pump discharging opening installs DN50 valve, is then extended to by DN50 pipeline after this valve and uses position elevated dosing vessel, on the pipeline of centrifugal pump charging aperture He after discharging opening valve, install a road DN50 pipeline bypass additional, mounted valve on bypass pipe.On the elevated dosing vessel using position, there are DN50 charging aperture, DN50 drain, DN15 liquid level gauge hole in position, DN50 discharging opening bottom elevated dosing vessel.In the feed pipe upper shed on elevated dosing vessel side, the pipeline of a welding DN40, pipeline installs valve additional, and the valve other end connects air compression system.
Its concrete operation step is as follows.
Position elevated dosing vessel is used to get the raw materials ready: the valve 19 on the other purging system return line 16 of closedown sulfuric acid holding vessel and outlet of centrifugal pump place purge air compression system valve 2, elevated dosing vessel bottom discharge valve 9 near by-passing valve 28 and elevated dosing vessel; Open outlet valve 22 at the bottom of valve 3 near sulfuric acid holding vessel atmospheric valve 14, elevated dosing vessel atmospheric valve 6, elevated dosing vessel feed pipe 4, centrifugal pump turnover valve 23 and 25, sulfuric acid holding vessel, then centrifugal pump 24 is opened, by sulfuric acid in sulfuric acid holding vessel 18 in the desired amount for entering elevated dosing vessel 8, measure for entering amount with elevated dosing vessel side liquid level gauge 7.Open measuring tank bottom discharge valve 9, the sulfuric acid got ready by elevated dosing vessel controls flow and enters in required reactor through discharge nozzle 10.
After getting the raw materials ready, sulfuric acid holding vessel purges operating type to the whole pipe-line system in use position: pass centrifugal pump 24, sulfuric acid holding vessel bottom valve 22, centrifugal pump 24 pass in and out valve 3 near valve 23 and 25, elevated dosing vessel feed pipe 4; Open on sulfuric acid holding vessel and purge return line 16 inlet valve 15 and 19, drive by-passing valve 28 on centrifugal pump discharge nozzle again, finally open pneumatics valve 2 near elevated dosing vessel feed pipe 4, utilize pneumatics in pipeline 1 by the sulfuric acid that accumulates through pipeline push back sulfuric acid holding vessel, to make in pipeline without the sulfuric acid that accumulates, reach to solve from root and easily produce Crystallization Plugging problem at temperature lower than using sulfuric acid process pipeline when 10 DEG C.When on air compression pipeline 1, Pressure gauge y pointer declines fast, show that sulfuric acid holding vessel discharging opening 22 is to elevated dosing vessel inlet valve 3 pipeline and purging bypass noresidue sulfuric acid.Normally open is at usual sulfuric acid holding vessel atmospheric valve 14 and elevated dosing vessel atmospheric valve 6.
Claims (1)
1. a concentrated sulfuric acid blowing pipeline device, is characterized in that: this device comprises storage tank, valve, pipeline, liquid level gauge, centrifugal pump, elevated dosing vessel, air compression system; Tank top has charging aperture, drain, manhole, purging refluxing opening, storage tank side is provided with liquid level gauge, liquid level gauge is connected to the liquid level gauge hole that 15cm place respectively has at the bottom of tank from tank roof 15cm and vertical line, and storage tank opposite side has discharging opening from 15cm place, bottom, and manhole adopts movable manhole cover; Reservoir outlet connects centrifugal pump charging aperture by pipeline, and the pipeline of storage tank and centrifugal pump is provided with the purging refluxing opening that threeway and return duct are connected to tank top, fills valve purging on return duct; Centrifugal pump discharging opening connects elevated dosing vessel by pipeline, a road pipeline bypass is provided with between centrifugal pump charging aperture and discharging opening, on elevated dosing vessel, there are charging aperture, drain, liquid level gauge hole in position, elevated dosing vessel bottom discharge mouth, the feed pipe on elevated dosing vessel side is provided with threeway, be connected air compression system by threeway with pipeline, at each import and export place, valve be housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061162.6U CN204503690U (en) | 2015-01-29 | 2015-01-29 | Concentrated sulfuric acid blowing pipeline device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520061162.6U CN204503690U (en) | 2015-01-29 | 2015-01-29 | Concentrated sulfuric acid blowing pipeline device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204503690U true CN204503690U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520061162.6U Expired - Fee Related CN204503690U (en) | 2015-01-29 | 2015-01-29 | Concentrated sulfuric acid blowing pipeline device |
Country Status (1)
| Country | Link |
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| CN (1) | CN204503690U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543738A (en) * | 2017-07-19 | 2018-01-05 | 防城港市港口区晶通科技有限公司 | A kind of automatic sulfuric acid sampling bottle blocked based on the anti-thief hatch of sound speed detection |
| CN110656691A (en) * | 2019-10-08 | 2020-01-07 | 东莞市唯美陶瓷工业园有限公司 | Siphon type sewage discharge device, electrical equipment and control method for electrifying and stopping process of displacement pump |
-
2015
- 2015-01-29 CN CN201520061162.6U patent/CN204503690U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107543738A (en) * | 2017-07-19 | 2018-01-05 | 防城港市港口区晶通科技有限公司 | A kind of automatic sulfuric acid sampling bottle blocked based on the anti-thief hatch of sound speed detection |
| CN110656691A (en) * | 2019-10-08 | 2020-01-07 | 东莞市唯美陶瓷工业园有限公司 | Siphon type sewage discharge device, electrical equipment and control method for electrifying and stopping process of displacement pump |
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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: 20150729 Termination date: 20190129 |