CN103849886A - Caustic soda electrolytic cell cooled by utilizing pure water heat exchange - Google Patents
Caustic soda electrolytic cell cooled by utilizing pure water heat exchange Download PDFInfo
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- CN103849886A CN103849886A CN201210502306.8A CN201210502306A CN103849886A CN 103849886 A CN103849886 A CN 103849886A CN 201210502306 A CN201210502306 A CN 201210502306A CN 103849886 A CN103849886 A CN 103849886A
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- pure water
- caustic soda
- heat exchanger
- bypass
- electrolytic cell
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- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
The invention discloses a caustic soda electrolytic cell cooled by utilizing pure water heat exchange. The caustic soda electrolytic cell comprises an electrolytic cell. The front end of a pure water inlet main valve of the electrolytic cell is connected to a bypass. A plate heat exchanger is connected between the tail end of the pure water inlet main valve of the electrolytic cell and the bypass. The plate heat exchanger is connected to a pure water header pipe main valve. The inlet end of a finished alkali heat exchanger is connected to a bypass. The second bypass is connected to the inlet end of the plate heat exchanger, to the outlet end of the plate heat exchanger and to the outlet of the finished alkali heat exchanger. According to the caustic soda electrolytic cell, the objectives of balancing the production and reducing energy consumption can be achieved.
Description
Technical field
The present invention relates to a kind of electrolyzer, particularly a kind of caustic soda electrolysis groove that utilizes pure water heat exchange cooling.
Background technology
Electrolyzer circulation caustic soda has two kinds of purposes aborning: a kind of is to generate 32% caustic soda to be sent to evaporation post, during must pass through interchanger E2002 and cool to 50-60 DEG C and just can be sent to evaporation, to ensure that caustic soda quality is as premium grads; After another part adds pure water, electrolysis groove circulates, but must ensure out that groove alkali temperature is at 85-89.5 DEG C, enters groove alkali temperature so must improve circulation alkali by steam heating through interchanger E2001.Therefore just there is the contradiction of a cooling, an intensification in this two portions alkali.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of caustic soda electrolysis groove that utilizes pure water heat exchange cooling.The pure water that enters groove is heated up by the alkali lye that is sent to evaporation, reduce the temperature of evaporation alkali lye simultaneously; Pure water temperature raises and indirectly improves into groove circulation alkali temperature, reduces into the steam consumption of groove circulation alkali interchanger.To reach line balancing, low consumed object is fallen.
Above-mentioned purpose of the present invention is to realize by such technical scheme: a kind of caustic soda electrolysis groove that utilizes pure water heat exchange cooling, comprise electrolyzer, the purified water inlet main valve front end of described electrolyzer connects a bypass, between described electrolyzer purified water inlet main valve end and described bypass, be connected with plate-type heat exchanger, plate-type heat exchanger connects pure water house steward main valve; The entrance end of product caustic soda interchanger connects a bypass, the entrance end of this bypass connecting plate type interchanger, and the exit end of connecting plate type interchanger connects the outlet of product caustic soda interchanger.
Described plate-type heat exchanger is 20M
2316L plate-type heat exchanger.
Described bypass is provided with valve.
A kind of caustic soda electrolysis groove that utilizes pure water heat exchange cooling of the present invention, lower the temperature to circulation alkali by pure water, circulation alkali to the temperature of evaporation reduces like this, electrolyzer enters groove pure water temperature and raises, indirectly improve the temperature that circulation alkali enters electrolyzer, reduce electrolytic bath voltage, also reduced circulation alkaline consumption steam consumption simultaneously.
Brief description of the drawings
Fig. 1 is apparatus of the present invention connection diagram.
Embodiment
A caustic soda electrolysis groove that utilizes pure water heat exchange cooling, comprises electrolyzer, and the purified water inlet main valve front end of described electrolyzer connects a bypass, this bypass mounted valve.Between described electrolyzer purified water inlet main valve end and described bypass, be connected with 20M
2316L plate-type heat exchanger, this plate-type heat exchanger connects pure water house steward main valve.The entrance end of the product caustic soda interchanger of E2002 type connects a bypass, and this bypass is connected to the entrance end of plate-type heat exchanger, and the exit end of connecting plate type interchanger connects the outlet of product caustic soda interchanger.
An electrolyzer circulation alkali liquor part is sent to the evaporation of evaporation post, takes out, and after a part of electrolysis groove adds pure water in addition, recycles.The caustic soda that is sent to evaporation post must carry out cooling down, guarantees in alkali that iron content is below 1PPm.
Adopt apparatus of the present invention, pure water temperature can be improved to 10 DEG C, circulation alkali temperature can improve 10 DEG C simultaneously like this, under same situation, ensures out that the alkali temperature of electrolyzer is at 85-89.5 DEG C, and the higher bath voltage of temperature is lower, can reduce power consumption.Can consume approximately 5 tons by a day steam saving.
Claims (3)
1. one kind is utilized the caustic soda electrolysis groove of pure water heat exchange cooling, comprise electrolyzer, it is characterized in that, the purified water inlet main valve front end of described electrolyzer connects a bypass, between described electrolyzer purified water inlet main valve end and described bypass, be connected with plate-type heat exchanger, plate-type heat exchanger connects pure water house steward main valve;
The entrance end of product caustic soda interchanger connects a bypass, the entrance end of this bypass connecting plate type interchanger, and the exit end of connecting plate type interchanger connects the outlet of product caustic soda interchanger.
2. a kind of caustic soda electrolysis groove that utilizes pure water heat exchange cooling according to claim 1, is characterized in that, described plate-type heat exchanger is 20M
2316L plate-type heat exchanger.
3. a kind of caustic soda electrolysis groove that utilizes pure water heat exchange cooling according to claim 1, is characterized in that, described bypass is provided with valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502306.8A CN103849886A (en) | 2012-11-30 | 2012-11-30 | Caustic soda electrolytic cell cooled by utilizing pure water heat exchange |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502306.8A CN103849886A (en) | 2012-11-30 | 2012-11-30 | Caustic soda electrolytic cell cooled by utilizing pure water heat exchange |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103849886A true CN103849886A (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210502306.8A Pending CN103849886A (en) | 2012-11-30 | 2012-11-30 | Caustic soda electrolytic cell cooled by utilizing pure water heat exchange |
Country Status (1)
| Country | Link |
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| CN (1) | CN103849886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104928716A (en) * | 2015-05-26 | 2015-09-23 | 南通星球石墨设备有限公司 | Light salt brine pretreatment device |
-
2012
- 2012-11-30 CN CN201210502306.8A patent/CN103849886A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104928716A (en) * | 2015-05-26 | 2015-09-23 | 南通星球石墨设备有限公司 | Light salt brine pretreatment device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |