CN103274562B - Thermal energy recovery and pure water preparation device for phenethylene process condensate - Google Patents
Thermal energy recovery and pure water preparation device for phenethylene process condensate Download PDFInfo
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- CN103274562B CN103274562B CN201310251776.6A CN201310251776A CN103274562B CN 103274562 B CN103274562 B CN 103274562B CN 201310251776 A CN201310251776 A CN 201310251776A CN 103274562 B CN103274562 B CN 103274562B
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- lime set
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- process condensate
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Abstract
A thermal energy recovery and pure water preparation device for phenethylene process condensate relates to energy-saving device in chemical engineering, in particular to a thermal energy multi-stage utilizaiton and pure water preparation device for the phenethylene process condensate. The device provided by the invention comprises a four-stage heat recovery device and a pure water preparation device, wherein the four-stage heat recovery device mainly comprises a phenethylene rectification unit feeding heat exchanger, an air-conditioning heat exchanger, a raw water heater and a pure water heater; the phenethylene rectification unit feeding heat exchanger is sequentially connected with a process condensate efficient filter and a rough process condensate storage tank; the bottom fo the rough process condensate storage tank is connected with the raw water heater and the pure water heater through a rough process condensate delivery pump sequentially; the air-conditioning heat exchanger is connected with the rough process condensate storage tank through an air-condition heat source pump so as to form a closed loop. The device provided by the invention has the benefit that the thermal energy recovery rate of the process condensate reaches more than 80 percent, and is efficient, reliable and low in cost, and makes the best of values of the process condensate.
Description
Technical field
The present invention relates to a kind of energy saving of chemical industry device, relate in particular to the multistage utilization of styrene technique lime set heat energy pure water device processed.
Background technology
Styrene is important aromatic hydrocarbons, and in market, 80% styrene product is to be made by ethylbenzene dehydrogenation technique, under the environment that dehydrogenation reaction must exist at steam, carries out, and produces a large amount of technique lime sets after condensation.What technique lime set was traditional utilizes mode is that directly the cooling rear fresh water (FW) of regarding uses, and both there is no energy recovery, does not also make full use of the value of lime set itself.
Summary of the invention
The object of this invention is to provide a kind of styrene technique lime set energy recovery pure water device processed, heat energy recovery rate is reached more than 80%, technique lime set is made to pure water simultaneously, realized technique lime set pure water processed efficiently, reliably, approach cheaply, take full advantage of the value of lime set.
For achieving the above object, the technical solution used in the present invention is:
A kind of styrene technique lime set energy recovery pure water device processed, it is characterized in that: comprise level Four heat reclamation device and pure water device processed, described level Four heat reclamation device mainly comprises phenyl ethylene rectification unit feed heat exchanger, air-condition heat exchanger, former water heater and di water heater, wherein phenyl ethylene rectification unit feed heat exchanger connects technique lime set high efficiency particulate air filter successively, raw process lime set storage tank, raw process lime set tank bottom connects former water heater successively by raw process lime set delivery pump, di water heater, described air-condition heat exchanger is connected with raw process lime set storage tank by air conditioning heat pump, and form closed-loop path,
Described pure water device processed comprises technique lime set charcoal filter, technique lime set accurate filter, process for refining lime set storage tank, process for refining lime set delivery pump, mixed bed, pure water storage tank, and connect and connect successively, wherein technique lime set charcoal filter is connected with di water heater by raw process lime set cooler, described pure water storage tank also connects a pure water delivery pump, and described pure water delivery pump is connected with di water heater.
Beneficial effect of the present invention is: technique lime set heat energy recovery rate reaches more than 80%, and the device of simultaneously technique lime set being made to pure water is efficient, reliable, cost is low, takes full advantage of the value of technique lime set.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1. phenyl ethylene rectification unit feed heat exchanger; 2. technique lime set high efficiency particulate air filter; 3. raw process lime set storage tank; 4. air conditioning heat pump; 5. air-condition heat exchanger; 6. raw process lime set delivery pump; 7. former water heater; 8. di water heater; 9. raw process lime set cooler; 10. technique lime set charcoal filter; 11. technique lime set accurate filters; 12. process for refining lime set storage tanks; 13. process for refining lime set delivery pumps; 14. mixed beds; 15. pure water storage tanks; 16. pure water delivery pumps.
The specific embodiment
From accompanying drawing 1, the present invention includes the process unit of lime set recuperation of heat and pure water processed, the technique lime set of heat, through the charging of heating phenyl ethylene rectification unit, has realized one-level recuperation of heat; Then be delivered to air-conditioning system and return, having realized secondary recuperation of heat; Be delivered to again former water heater and add pyrogen water, realize three grades of recuperations of heat; Then by heating pure water, realize level Four recuperation of heat.Technique lime set, through phenyl ethylene rectification unit feed heat exchanger 1, technique lime set high efficiency particulate air filter 2, enters raw process lime set storage tank 3, returns by air conditioning heat pump 4, air-condition heat exchanger 5.Again through raw process lime set delivery pump 6, deliver to former water heater 7 and add pyrogen water, di water heater 8 heats pure water, then filters through raw process lime set cooler 9, technique lime set charcoal filter 10 and technique lime set accurate filter 11, sends in process for refining lime set storage tank 12 and stores.Refining lime set makes pure water by process for refining lime set delivery pump 13, mixed bed 14, after storing, is delivered to user through pure water delivery pump 16 in pure water storage tank 15.
Technique lime set is generally 80 ℃, and after level Four recuperation of heat, typical temperature can be down to 30 ℃, and average of the whole year heat utilization rate exceedes 80%.Consider that air-condition heat exchanger 5 and former water heater 7 heat exchange amounts change with temperature Change, in flow process, be provided with raw process lime set cooler 9, take recirculated cooling water as cooling medium, can accurately control water temperature, in the winter time when pure water processed without extraneous thermal source heating, save the energy; Water stabilization after active carbon filtration, secondary filter, enters mixed bed 14 desalting effects good, and mixed bed 14 life cycles are long, and regeneration cost is low, and producing water ratio is high, and pure water cost processed is low, water stabilization.
Claims (1)
1. a styrene technique lime set energy recovery pure water device processed, it is characterized in that: comprise level Four heat reclamation device and pure water device processed, described level Four heat reclamation device mainly comprises phenyl ethylene rectification unit feed heat exchanger, air-condition heat exchanger, former water heater and di water heater, wherein phenyl ethylene rectification unit feed heat exchanger connects technique lime set high efficiency particulate air filter successively, raw process lime set storage tank, raw process lime set tank bottom connects former water heater successively by raw process lime set delivery pump, di water heater, described air-condition heat exchanger is connected with raw process lime set storage tank by air conditioning heat pump, and form closed-loop path,
Described pure water device processed comprises technique lime set charcoal filter, technique lime set accurate filter, process for refining lime set storage tank, process for refining lime set delivery pump, mixed bed, pure water storage tank, and connect and connect successively, wherein technique lime set charcoal filter is connected with di water heater by raw process lime set cooler, described pure water storage tank also connects a pure water delivery pump, and described pure water delivery pump is connected with di water heater.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251776.6A CN103274562B (en) | 2013-06-24 | 2013-06-24 | Thermal energy recovery and pure water preparation device for phenethylene process condensate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310251776.6A CN103274562B (en) | 2013-06-24 | 2013-06-24 | Thermal energy recovery and pure water preparation device for phenethylene process condensate |
Publications (2)
| Publication Number | Publication Date |
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| CN103274562A CN103274562A (en) | 2013-09-04 |
| CN103274562B true CN103274562B (en) | 2014-05-14 |
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| CN201310251776.6A Active CN103274562B (en) | 2013-06-24 | 2013-06-24 | Thermal energy recovery and pure water preparation device for phenethylene process condensate |
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| CN110563228A (en) * | 2018-06-05 | 2019-12-13 | 青岛海湾集团有限公司 | Styrene process condensate and heat energy recovery system and control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1740090A (en) * | 2005-06-16 | 2006-03-01 | 洪博志 | Low temperature heat energy recovering method and system for the first absorption section in sulfuric acid production |
| PE20110493A1 (en) * | 2009-12-30 | 2011-07-22 | Ind Minco S A C | HIGH PRECISION DELAY SYSTEM |
| CN202002075U (en) * | 2011-01-21 | 2011-10-05 | 刘炎军 | Thermal energy recovery device for boiler steam |
| CN102062388A (en) * | 2011-01-28 | 2011-05-18 | 邵远金 | Steam energy saving device matched with steam boiler |
| JP5953726B2 (en) * | 2011-12-07 | 2016-07-20 | 栗田工業株式会社 | Ultrapure water production method and apparatus |
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