CN203183722U - Light-component tower feeding and preheating device - Google Patents
Light-component tower feeding and preheating device Download PDFInfo
- Publication number
- CN203183722U CN203183722U CN2012204324063U CN201220432406U CN203183722U CN 203183722 U CN203183722 U CN 203183722U CN 2012204324063 U CN2012204324063 U CN 2012204324063U CN 201220432406 U CN201220432406 U CN 201220432406U CN 203183722 U CN203183722 U CN 203183722U
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- light
- component tower
- heat
- edc
- heat exchange
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model discloses a light-component tower feeding and preheating device, relates to a chemical industry production device and in particular relates to a preheating and heating device for feeding light-component tower for dichloroethane rectification. The device comprises a light-component tower for rectifying coarse wet ethylene dichloride (EDC), wherein a tower reboiler is arranged at the bottom of the light-component tower; a heat exchange device is arranged on a feeding pipeline of the light-component tower; the coarse wet EDC moves on the tube pass of the heat exchange device and enters the light-component tower through preheating; the steam condensate water moves on the shell pass of the heat exchange device and is recycled after heat exchange. The device has the beneficial effects that the heat is exchanged through the heat exchanger, so that the material temperature is effectively improved, and when the rectification is performed in the light-component tower, the steam amount is greatly saved, and the energy is saved.
Description
Technical field:
The utility model relates to a kind of chemical production device, relates in particular to the pre-heating temperature elevation to the used lights column charging of dichloroethanes rectifying.
Background technology:
50% dichloroethanes (EDC) is to be made by low temperature chlorination reaction and oxi-chlorination in the market, the EDC that produces all need advance lights column and heavies column and carry out rectification and purification.In former design, the lights column charging directly is the liquid phase feeding under the environment temperature, has increased the consumption of steam like this, causes the waste of the energy, has increased production cost.
Summary of the invention:
The purpose of this utility model provides a kind of liquid phase EDC feeding preheating device, improves the feeding temperature of liquid phase EDC, reduces the used quantity of steam of lights column rectifying, realizes producing energy-conservation.
For achieving the above object, the technical solution used in the present invention is:
A kind of lights column feeding preheating device, comprise the lights column that thick wet EDC is carried out rectifying, the lights column bottom is provided with the tower reactor reboiler, it is characterized in that: install a heat-exchanger rig additional at the lights column feeding line, described thick wet EDC walks the tube side of heat-exchanger rig, enter lights column after preheating, steam condensate (SC) is walked the shell side of heat-exchanger rig, recycles after the heat exchange.
Beneficial effect of the present invention is: by the heat exchanger heat exchange, temperature of charge is effectively improved, when lights column is carried out rectifying, saved steam consumption greatly, saved the energy.
Description of drawings:
Fig. 1 is structural representation of the present invention.
Among the figure: 1. heat-exchanger rig; 2. lights column; 3. tower reactor reboiler.
The specific embodiment:
By accompanying drawing 1 as can be known, the utility model comprises the lights column 2 that thick wet EDC is carried out rectifying, lights column 2 bottoms are provided with tower reactor reboiler 3, install a heat-exchanger rig 1 additional at lights column 2 feeding lines, described thick wet EDC walks the tube side of heat-exchanger rig 1, enter lights column 2 after preheating, steam condensate (SC) is walked the shell side of heat-exchanger rig 1, recycles after the heat exchange.
The utility model utilizes the heat of steam condensate (SC) to come 2 chargings of preheating lights column, to save steam.The hot condensed water that comes from the condensed water delivery pump enters heat-exchanger rig 1 through lights column 2, carries out heat exchange with the thick wet EDC that comes from discharging pump, and the EDC that will slightly wet is heated to 60-70 ℃, enters lights column 2 and carries out rectifying.
In the utility model, slightly wet EDC feeding temperature is 20-30 ℃, and the high-temperature steam condensate liquid is 85-95 ℃ of temperature, and slightly temperature can reach 60-70 ℃ after the wet EDC heat exchange.Significantly reduce lights column 2 used quantity of steams, saved the energy and production cost.
Claims (1)
1. lights column feeding preheating device, comprise the lights column that thick wet EDC is carried out rectifying, the lights column bottom is provided with the tower reactor reboiler, it is characterized in that: install a heat-exchanger rig additional at the lights column feeding line, described thick wet EDC walks the tube side of heat-exchanger rig, enter lights column after preheating, steam condensate (SC) is walked the shell side of heat-exchanger rig, recycles after the heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204324063U CN203183722U (en) | 2012-08-29 | 2012-08-29 | Light-component tower feeding and preheating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204324063U CN203183722U (en) | 2012-08-29 | 2012-08-29 | Light-component tower feeding and preheating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203183722U true CN203183722U (en) | 2013-09-11 |
Family
ID=49100626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204324063U Expired - Lifetime CN203183722U (en) | 2012-08-29 | 2012-08-29 | Light-component tower feeding and preheating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203183722U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409526A (en) * | 2018-03-09 | 2018-08-17 | 中国化学赛鼎宁波工程有限公司 | A kind of monochloro methane production energy-saving system and method |
| CN113599851A (en) * | 2021-08-19 | 2021-11-05 | 南通百川新材料有限公司 | Novel light component removal and rectification system and method for propylene glycol methyl ether acetate |
-
2012
- 2012-08-29 CN CN2012204324063U patent/CN203183722U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108409526A (en) * | 2018-03-09 | 2018-08-17 | 中国化学赛鼎宁波工程有限公司 | A kind of monochloro methane production energy-saving system and method |
| CN108409526B (en) * | 2018-03-09 | 2020-11-20 | 中国化学赛鼎宁波工程有限公司 | Methane chloride energy-saving production system and method |
| CN113599851A (en) * | 2021-08-19 | 2021-11-05 | 南通百川新材料有限公司 | Novel light component removal and rectification system and method for propylene glycol methyl ether acetate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |