CN103467240A - System for separating hydrogen chloride in coarse trichloroethylene - Google Patents
System for separating hydrogen chloride in coarse trichloroethylene Download PDFInfo
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- CN103467240A CN103467240A CN2013104363692A CN201310436369A CN103467240A CN 103467240 A CN103467240 A CN 103467240A CN 2013104363692 A CN2013104363692 A CN 2013104363692A CN 201310436369 A CN201310436369 A CN 201310436369A CN 103467240 A CN103467240 A CN 103467240A
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- analytic tower
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- water pot
- trieline
- cooler
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Abstract
The invention discloses a system for separating hydrogen chloride in coarse trichloroethylene. The system comprises an analytic tower, a reboiler of the analytic tower, a reflux pump of the analytic tower, a return tank, a cooler and a gas trap, wherein the lower part of the analytic tower is connected with the reboiler of the analytic tower, the upper part of the analytic tower is respectively connected with the gas trap and the return tank through the cooler, the return tank is connected with the analytic tower through the reflux pump of the analytic tower, and an acid water removing tank is arranged between the cooler and the return tank. Furthermore, the acid water removing tank comprises a reflux inlet arranged at the top of the tank body, an overflow port arranged at the bottom of the tank body and an acid discharge port arranged on the side wall of the tank body. The acid water removing tank is connected with the cooler through the reflux inlet and is connected with the return tank through the overflow port. Acid liquor formed by inflow of the system is eliminated through the acid water removing tank in the system, and the condition that the acid liquor which circulates in the system to corrode parts in the system to cause breakdown of the system is avoided.
Description
Technical field
The present invention relates to chemical technology field, especially relate to a kind of system of separating hydrogenchloride in thick trieline.
Background technology
The tetrachloroethane of sending here from last process send dehydrochlorination reaction device Pintsch process to generate trieline after vaporization, in reaction process, there is a large amount of hydrogen chloride gas to produce, the thick trieline obtained is after Analytic Tower is isolated hydrogenchloride, tower bottoms is sent into next procedure, the refined product trieline.
As shown in Figure 3, the separation of hydrogen chloride gas is carried out in Analytic Tower, and the body material stripping section of Analytic Tower 1 is carbon steel, and rectifying section is enamel, and ceramic filler is housed in tower.Thick trieline gas from the dehydrochlorination reaction device enters Analytic Tower 1, and tower bottoms adds thermogenesis rising steam by parsing reboiler 2 and fully contacts at filling surface with the liquid matter from return tank, carries out the purpose that mass-and heat-transfer reaches separating hydrogen chloride.Tower top contains organic hydrogen chloride gas through the full cooler 5 of one-level graphite, secondary graphite cooler 6, the liquid cooled down flows into return tank 4, squeeze into Analytic Tower by Analytic Tower reflux pump 3 again, hydrogen chloride gas is sent into acid making system after gas trap 7, by HCl separation in thick trieline.
Any heat-exchange equipment of the tetrachloroethane vaporizer of the Analytic Tower reboiler in this separation system, graphite cooler, Analytic Tower is as logical the leakage occurred, system will be intake, form with hydrogen chloride gas the hydrochloric acid that corrodibility is stronger, hydrochloric acid is at the Analytic Tower internal recycle, corrosion Analytic Tower body and column internals, thereby cause systemic breakdown, impact is produced.
Summary of the invention
For the prior art deficiency, technical problem to be solved by this invention is to provide a kind of system of separating hydrogenchloride in thick trieline, and it can not intake because of system, causes systemic breakdown.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of system of separating hydrogenchloride in thick trieline, comprise Analytic Tower, Analytic Tower reboiler, Analytic Tower reflux pump, return tank, water cooler, gas trap, described Analytic Tower bottom is connected with the Analytic Tower reboiler, Analytic Tower top is connected with return tank with gas trap respectively by water cooler, return tank is connected with Analytic Tower by the Analytic Tower reflux pump, is provided with the deacidification water pot between described water cooler and return tank.
Further, described deacidification water pot comprises the phegma entrance that is located at the tank body top and is located at the overflow port of tank base and is located at the acid discharge mouth on tank wall, described deacidification water pot is connected with water cooler by the phegma entrance, and described deacidification water pot is connected with return tank by overflow port.
The tank wall of described deacidification water pot is provided with the glass visor.
The top of described deacidification water pot is provided with the flexible interface of the level gauge of magnetic, in the flexible interface of the level gauge of magnetic, is provided with Telescopic magnetic liquid meter.
The bottom of described deacidification water pot is provided with discharging hole.
The tank wall of described deacidification water pot is provided with the manhole that the easy access workman enters.
The present invention compared with prior art, have the following advantages: by the acid solution that water inlet forms to system of the deacidification water pot in system, removed, prevent that acid solution from circulating in system, to component corrosion in system, avoid because the system water inlet, cause systemic breakdown, system is stable in process of production, long service life.
The accompanying drawing explanation
Below to each width accompanying drawing of this specification sheets, expressed content and the mark in figure are briefly described:
Fig. 1 is the system schematic that the present invention separates hydrogenchloride in thick trieline.
Fig. 2 is deacidification water pot structural representation.
Fig. 3 is existing system schematic of separating hydrogenchloride in thick trieline.
In figure: 1. Analytic Tower, 2. Analytic Tower reboiler, 3. Analytic Tower reflux pump, 4. return tank, the 5. full cooler of one-level graphite, 6. secondary graphite cooler, 7. gas trap, 8. deacidification water pot, 81. overflow ports, 82. manholes, 83. acid discharge mouths, the flexible interface of the level gauge of 84. magnetic, 85. phegma entrances, 86. glass visors, 87. discharging holes.
Embodiment
Below contrast accompanying drawing, the description by embodiment, be described in further detail the specific embodiment of the present invention.
As depicted in figs. 1 and 2, the system that this separates hydrogenchloride in thick trieline, comprise Analytic Tower 1, Analytic Tower reboiler 2, Analytic Tower reflux pump 3, return tank 4, the full cooler 5 of one-level graphite, secondary graphite cooler 6, gas trap 7 and deacidification water pot 8, wherein, Analytic Tower 1 bottom is connected by pipeline with Analytic Tower reboiler 2, Analytic Tower 1 top is connected by pipeline with the full cooler of one-level graphite 5 tops, the full cooler of one-level graphite 5 bottoms are connected by pipeline with the phegma entrance 85 that is located at deacidification water pot 8 tops, the full cooler 5 lower sides openings of one-level graphite are connected by pipeline with secondary graphite cooler 6 tops, secondary graphite cooler 6 bottoms are connected by pipeline with the phegma entrance at deacidification water pot 8 tops, secondary graphite cooler 6 lower sides openings are connected with gas trap 7, hydrogen chloride gas is collected and is transported away, thereby realize separating, the bottom of gas trap 7 is connected with the top of deacidification water pot 8, the overflow port 81 of deacidification water pot 8 bottoms is connected with return tank 4 tops, and return tank 4 bottoms are connected with Analytic Tower 1 top by Analytic Tower reflux pump 3.
The material of deacidification water pot 8 is frp lining resol, on the tank wall of deacidification water pot 8, is provided with highly different three acid discharge mouths 83 and three glass visors 86.And be provided with discharging hole 87 in the bottom of deacidification water pot 8; Be provided with the manhole 82 that the easy access workman enters on the tank wall of deacidification water pot 8.
Be provided with the flexible interface of the level gauge 84 of magnetic at the top of deacidification water pot 8, be provided with Telescopic magnetic liquid meter in the flexible interface of the level gauge 84 of magnetic, trieline and hydrochloric acid layering position in the judgement tank.
As system in the course of the work, intrasystem heat-exchange equipment is logical leaks water inlet, forms hydrochloric acid.By two cooling phegmas of water cooler, be thick trieline, the proportion of liquid trieline is 1.46g/cm3, and 31% hydrochloric acid proportion is 1.15g/cm3, and hydrochloric acid and trieline do not dissolve each other, stratification, and hydrochloric acid is on upper strata.Import liquid trieline and the hydrochloric acid layering position of judgement in distributed control system into by Telescopic magnetic liquid meter signal, select the acid discharge mouth of different heights to discharge hydrochloric acid.
The above is exemplarily described the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that design of the present invention and technical scheme carry out; or without improving, design of the present invention and technical scheme are directly applied to other occasion, all within protection scope of the present invention.
Claims (6)
1. a system of separating hydrogenchloride in thick trieline, comprise Analytic Tower (1), Analytic Tower reboiler (2), Analytic Tower reflux pump (3), return tank (4), water cooler, gas trap (7), described Analytic Tower (1) bottom is connected with Analytic Tower reboiler (2), Analytic Tower (1) top is connected with return tank (4) with gas trap (7) respectively by water cooler, return tank (4) is connected with Analytic Tower (1) by Analytic Tower reflux pump (3), it is characterized in that: be provided with deacidification water pot (8) between described water cooler and return tank (4).
2. separate as claimed in claim 1 the system of hydrogenchloride in thick trieline, it is characterized in that: described deacidification water pot (8) comprises the phegma entrance (85) that is located at the tank body top and the overflow port (81) that is located at tank base and is located at the acid discharge mouth (83) on tank wall, described deacidification water pot (8) is connected with water cooler by phegma entrance (85), and described deacidification water pot (8) is connected with return tank (4) by overflow port (81).
3. separate as claimed in claim 2 the system of hydrogenchloride in thick trieline, it is characterized in that: the tank wall of described deacidification water pot (8) is provided with glass visor (86).
4. separate as claimed in claim 2 the system of hydrogenchloride in thick trieline, it is characterized in that: the top of described deacidification water pot (8) is provided with the flexible interface of the level gauge (84) of magnetic, in the flexible interface of the level gauge (84) of magnetic, is provided with Telescopic magnetic liquid meter.
5. separate as claimed in claim 2 the system of hydrogenchloride in thick trieline, it is characterized in that: the bottom of described deacidification water pot (8) is provided with discharging hole (87).
6. separate as claimed in claim 2 the system of hydrogenchloride in thick trieline, it is characterized in that: the tank wall of described deacidification water pot (8) is provided with the manhole (82) that the easy access workman enters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310436369.2A CN103467240B (en) | 2013-09-23 | 2013-09-23 | System for separating hydrogen chloride in coarse trichloroethylene |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310436369.2A CN103467240B (en) | 2013-09-23 | 2013-09-23 | System for separating hydrogen chloride in coarse trichloroethylene |
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| Publication Number | Publication Date |
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| CN103467240A true CN103467240A (en) | 2013-12-25 |
| CN103467240B CN103467240B (en) | 2015-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310436369.2A Active CN103467240B (en) | 2013-09-23 | 2013-09-23 | System for separating hydrogen chloride in coarse trichloroethylene |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445072A (en) * | 2014-10-31 | 2015-03-25 | 浙江衢州巨塑化工有限公司 | Device and method for purifying byproduct hydrogen chloride of trichloro ethylene |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209954A (en) * | 2006-12-27 | 2008-07-02 | 贵州省遵义碱厂 | Technique for coproducing polyvinyl chloride from by-product hydrogen chloride of trichloroethylene |
| CN102267868A (en) * | 2010-06-01 | 2011-12-07 | 滨化集团股份有限公司 | Industrial production apparatus for trichloroethylene |
| CN203513531U (en) * | 2013-09-23 | 2014-04-02 | 芜湖融汇化工有限公司 | System for separating hydrogen chloride in coarse trichloroethylene |
-
2013
- 2013-09-23 CN CN201310436369.2A patent/CN103467240B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101209954A (en) * | 2006-12-27 | 2008-07-02 | 贵州省遵义碱厂 | Technique for coproducing polyvinyl chloride from by-product hydrogen chloride of trichloroethylene |
| CN102267868A (en) * | 2010-06-01 | 2011-12-07 | 滨化集团股份有限公司 | Industrial production apparatus for trichloroethylene |
| CN203513531U (en) * | 2013-09-23 | 2014-04-02 | 芜湖融汇化工有限公司 | System for separating hydrogen chloride in coarse trichloroethylene |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104445072A (en) * | 2014-10-31 | 2015-03-25 | 浙江衢州巨塑化工有限公司 | Device and method for purifying byproduct hydrogen chloride of trichloro ethylene |
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| CN103467240B (en) | 2015-04-08 |
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