CN203373293U - Steam step-recycling system - Google Patents
Steam step-recycling system Download PDFInfo
- Publication number
- CN203373293U CN203373293U CN201320492586.9U CN201320492586U CN203373293U CN 203373293 U CN203373293 U CN 203373293U CN 201320492586 U CN201320492586 U CN 201320492586U CN 203373293 U CN203373293 U CN 203373293U
- Authority
- CN
- China
- Prior art keywords
- interchanger
- steam condensate
- ethyl ester
- acetic acid
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model discloses a steam step-recycling system which comprises a steam condensate conveying pipe, an ethyl alcohol heat exchanger and an acetic acid heat exchanger, wherein the input end of the steam condensate conveying pipe is connected with a steam condensate inlet of the ethyl alcohol heat exchanger and a steam condensate inlet of the acetic acid heat exchanger. The steam step-recycling system further comprises an ethyl ester heat exchanger, wherein a steam condensate inlet of the ethyl ester heat exchanger is connected with a steam condensate outlet of the ethyl alcohol heat exchanger and a steam condensate outlet of the acetic acid heat exchanger, and a steam condensate outlet of the ethyl ester heat exchanger is connected with a reboiler. According to the steam step-recycling system, secondary heat exchanging is carried out on steam condensate subjected to primary heat exchanging, the steam condensate subjected to the secondary heat exchanging is then recycled to the reboiler, recycling is achieved, therefore, heat energy of the steam condensate is fully utilized, and treatment processes after the steam condensate is directly discharged are eliminated.
Description
Technical field
What the utility model related to chemical field steam or water of condensation repeatedly utilizes technology, is specifically related to a kind of steam classification cycle and utilizes system.
Background technology
In the production process of ethyl acetate, need first acetic acid and ethanol to be heated to respectively to 80 ℃, then mixed, again mixed acetic acid and ethanol are sent in reactor, continued heat temperature raising, reach temperature of reaction, acetic acid and ethanol are reacted in reactor, generate ethyl acetate.In the middle of existing, the heating of acetic acid and ethanol is all that acetic acid and ethanol are sent in interchanger, then steam condensate is passed in interchanger and carries out heat exchange, and acetic acid and ethanol are heated.After steam condensate carries out heat exchange, directly from interchanger, discharge, and steam condensate also is with the temperature of having a surplus after heat exchange, its temperature is 85 ℃, so not only wasted a large amount of heat energy, and directly discharge brings serious load to follow-up water treatment operation.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of steam classification cycle of steam condensate heat energy of can multistagely utilizing and utilizes system.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is as follows:
The steam classification cycle is utilized system, comprise steam condensate transfer lime, ethanol interchanger and acetic acid interchanger, described steam condensate transfer lime enters end and all is connected with the vapor condensation water inlet of ethanol interchanger and acetic acid interchanger, also comprise the ethyl ester interchanger, the vapor condensation water inlet of described ethyl ester interchanger is connected with the vapor condensation water out of ethanol interchanger and acetic acid interchanger respectively, and the vapor condensation water out of ethyl ester interchanger is connected with reboiler.
In such scheme, the feed(raw material)inlet of ethyl ester interchanger is connected with an ethyl ester work in-process holder, and the material outlet of ethyl ester interchanger is connected with an ethyl ester separator.
In such scheme, the material outlet of ethanol interchanger and acetic acid interchanger is connected with the entrance of a static mixer, and the outlet of this static mixer is connected with the entrance of a reactor.
Compared with prior art, the utility model carries out heat exchange for the second time (ethyl ester interchanger) by the steam condensate after first heat exchange (ethanol interchanger and acetic acid interchanger), but also will be through the reclamation of condensate water of heat exchange for the second time to reboiler, carry out recycle, not only take full advantage of the heat energy of steam condensate, also reduced due to the processing after the direct discharge of steam condensate.
The accompanying drawing explanation
Fig. 1 is the structural representation that a kind of steam classification cycle of the utility model is utilized system.
Embodiment
As shown in Figure 1, the utility model steam classification cycle is utilized system, comprise steam condensate transfer lime, ethanol interchanger, acetic acid interchanger and ethyl ester interchanger, described steam condensate transfer lime enters end and all is connected with the vapor condensation water inlet of ethanol interchanger and acetic acid interchanger, the vapor condensation water inlet of described ethyl ester interchanger is connected with the vapor condensation water out of ethanol interchanger and acetic acid interchanger respectively, and the vapor condensation water out of ethyl ester interchanger is connected with reboiler.The steam condensate passed in ethanol interchanger and acetic acid interchanger is 90 ℃, ethanol and acetic acid are sent in ethanol interchanger and acetic acid interchanger respectively from ethanol hold-up vessel and acetic acid hold-up vessel, the ethanol of sending into and the temperature of acetic acid are 30 ℃, from the ethanol of ethanol interchanger and acetic acid interchanger output and the temperature of acetic acid, being 80 ℃, is 85 ℃ from the temperature of ethanol interchanger and acetic acid interchanger output steam condensate.And the ethyl ester of sending into the ethyl ester interchanger from the ethyl ester hold-up vessel is 30 ℃, needing the ethyl ester temperature of output is 60 ℃, therefore can use from the steam condensate of ethanol interchanger and the output of acetic acid interchanger, by heat exchange, heats ethyl ester.
The vapor condensation water out of described ethyl ester interchanger can also first be connected with boiler inlet, and boiler export is connected with reboiler.The steam condensate of process ethyl ester interchanger heat exchange is also with certain remaining temperature, first this steam condensate is passed in boiler and heated, again the steam condensate after heating is passed in reboiler, finally by the pipeline condensation, it is passed in ethanol interchanger and acetic acid interchanger.
The feed(raw material)inlet of described ethyl ester interchanger is connected with an ethyl ester work in-process holder, and the material outlet of ethyl ester interchanger is connected with an ethyl ester separator.By the ethyl ester work in-process after heating, by the ethyl ester separator, separated, in order to using.
The material outlet of described ethanol interchanger and acetic acid interchanger is connected with the entrance of a static mixer, and the outlet of this static mixer is connected with the entrance of a reactor.
Claims (3)
1. the steam classification cycle is utilized system, comprise steam condensate transfer lime, ethanol interchanger and acetic acid interchanger, described steam condensate transfer lime enters end and all is connected with the vapor condensation water inlet of ethanol interchanger and acetic acid interchanger, it is characterized in that: also comprise the ethyl ester interchanger, the vapor condensation water inlet of described ethyl ester interchanger is connected with the vapor condensation water out of ethanol interchanger and acetic acid interchanger respectively, and the vapor condensation water out of ethyl ester interchanger is connected with reboiler.
2. steam classification cycle according to claim 1 is utilized system, it is characterized in that: the feed(raw material)inlet of ethyl ester interchanger is connected with an ethyl ester work in-process holder, and the material outlet of ethyl ester interchanger is connected with an ethyl ester separator.
3. steam classification cycle according to claim 1 is utilized system, it is characterized in that: the material outlet of ethanol interchanger and acetic acid interchanger is connected with the entrance of a static mixer, and the outlet of this static mixer is connected with the entrance of a reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492586.9U CN203373293U (en) | 2013-08-13 | 2013-08-13 | Steam step-recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320492586.9U CN203373293U (en) | 2013-08-13 | 2013-08-13 | Steam step-recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203373293U true CN203373293U (en) | 2014-01-01 |
Family
ID=49835840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320492586.9U Expired - Lifetime CN203373293U (en) | 2013-08-13 | 2013-08-13 | Steam step-recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203373293U (en) |
-
2013
- 2013-08-13 CN CN201320492586.9U patent/CN203373293U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202465298U (en) | Equipment for utilizing residual heat of coke oven flue gas to evaporate ammonia | |
| CN106276999A (en) | A kind of method recycling dissolution flash distillation exhaust steam in alumina producing | |
| CN102602960B (en) | Method for stilling ammonia by aid of waste heat of flue gas of coke oven and equipment | |
| CN106987263B (en) | A kind of continous way catalysis upgrading reaction system of microalgae liquefaction oil | |
| CN201610378U (en) | High-pressure live steam condensate residual heat recovering system | |
| CN203768274U (en) | System for one-time production of gamma-butyrolactone through dehydrogenation and catalytic distillation of 1,4-butanediol | |
| CN109020824A (en) | A kind of formamide separation system and formamide separating technology | |
| CN203373293U (en) | Steam step-recycling system | |
| CN101665259A (en) | Ore pulp heat exchange method and system | |
| CN103396311B (en) | Steam classification cycle utilizes system | |
| CN201981015U (en) | Waste heat recovering device for tail gas of hot blast stove or boiler | |
| CN202420230U (en) | Waste heat recovery system for textile technology | |
| CN203568999U (en) | Reaction separation system and device for preparing polyoxymethylene dimethyl ethers | |
| CN201873631U (en) | Preheating device for ethanol serving as raw material in process of preparing acetaldehyde by oxidizing ethanol | |
| CN202912869U (en) | Dimethyl oxalate production equipment | |
| CN103848721A (en) | Aldehyde removal apparatus of pentaerythritol | |
| CN202606140U (en) | Waste heat recycling system for reaction kettle | |
| CN204873836U (en) | Nitric acid manufacture condensate heat recovery of system utilizes device | |
| CN203498103U (en) | White carbon black thin pulp circulation type heat-exchange preparation system | |
| CN203469988U (en) | Feeding heat exchanger for ester product tower | |
| CN103922297A (en) | Device for recycling waste heat during generation of ammonium phosphate | |
| CN204121794U (en) | The different ester rectifier unit of a kind of acrylic acid | |
| CN205392374U (en) | Alkyl plant with heat recovery utilizes | |
| CN104003426A (en) | System for recycling heat energy of tail gas in reaction tank | |
| CN204786333U (en) | Purified cotton stoving in -process steam supply device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |
|
| CX01 | Expiry of patent term |