CN207871583U - Scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system - Google Patents
Scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system Download PDFInfo
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- CN207871583U CN207871583U CN201721900126.XU CN201721900126U CN207871583U CN 207871583 U CN207871583 U CN 207871583U CN 201721900126 U CN201721900126 U CN 201721900126U CN 207871583 U CN207871583 U CN 207871583U
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Abstract
The utility model discloses scrubbing tower washings to be used as carbon-dioxide regenerating tower top gas cooling water system, including carbon dioxide eliminating tower and carbon-dioxide regenerating tower, it is characterized in that, the carbon dioxide eliminating tower bottom is equipped with washing water pump, the carbon-dioxide regenerating tower side is equipped with drainer, regenerator cooler is arranged by piping connection between the carbon-dioxide regenerating tower and drainer, it is circumscribed with exit branch road and water inlet pipe road on pipeline between the washing water pump and washing water cooler, the exit branch road is connect with the water inlet of regenerator cooler, the water outlet of regenerator cooler is connect with water inlet pipe road, to constitute cooling circuit.The utility model has the beneficial effects that carbon dioxide eliminating tower bottom of tower washings are used as the cooling water of regenerator cooler by the system by washing water pump, industry cooling water consumption is saved, has been achieved the purpose that energy-saving.
Description
Technical field
The utility model is related to ethylene oxide manufacturing equipment technical fields, and in particular to scrubbing tower washings are used as titanium dioxide
Carbon regeneration overhead gas cooling water system.
Background technology
With social industrial expansion, government increasingly payes attention to environmental protection, and enterprise needs to constantly search for new
Energy-saving and emission-reduction mode come adapt to society requirement.And how to improve production efficiency, how energy-saving and emission-reduction be also enterprise can be permanent
The survival strategy based oneself upon.Ethylene oxide device production technology takes epoxy using the direct oxidation of ethylene to legal system of SD companies of the U.S.
Ethane, react generation ethylene oxide absorbed in scrubbing tower after, then through stripping, rectifying, refined produce ethylene oxide production
Product, but in the production process, gaseous phase materials include mainly CO at the top of regenerator2, water and ethylene glycol, this partial material pass through
Enter regenerator cooler drainer after the cooling of regenerator cooler, for regenerator cooler by cooling down water cooling, consumption is big, no
Conducive to the energy-saving production of device.
Utility model content
In order to solve the problems in the existing technology, the utility model provides reasonable for structure, energy-saving and environment-friendly washing
Tower washings are used as carbon-dioxide regenerating tower top gas cooling water system.
The technical solution of the utility model is as follows：
Scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system, including carbon dioxide eliminating tower and dioxy
Change carbon regenerator, which is characterized in that the carbon dioxide eliminating tower bottom is equipped with washing water pump, and described washing water pump one end passes through
Pipeline is connect with the bottom water outlet of carbon dioxide eliminating tower, and washing water cooler is arranged by piping connection in the other end, and leads to
The upper end water inlet piping connection of washing water cooler and carbon dioxide eliminating tower is crossed, circulation loop is constituted；The carbon dioxide
Regenerator side is equipped with drainer, and regeneration tower cooler is arranged by piping connection between the carbon-dioxide regenerating tower and drainer
Device is circumscribed with exit branch road and water inlet pipe road on the pipeline between the washing water pump and washing water cooler, it is described go out
Water bye-pass is connect with the water inlet of regenerator cooler, and the water outlet of regenerator cooler is connect with water inlet pipe road, to
Constitute cooling circuit.
The scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system, which is characterized in that described to wash
It washs water cooler and uses plate heat exchanger.
The scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system, which is characterized in that described to wash
It washs water cooler and uses external cooling water cooling.
The utility model has the beneficial effects that：
1）Carbon dioxide eliminating tower bottom of tower washings are used as the cooling of regenerator cooler by the system by washing water pump
Water has saved industry cooling water consumption, achievees the purpose that energy-saving.
2）It washs water cooler and uses plate heat exchanger so that heat exchange efficiency higher, while cooling water flow is by original
200t/h is down to 100t/h, saves a large amount of cooling water.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
In figure：1- carbon dioxide eliminating towers, 2- wash water cooler, and 3- washing water pumps, 4- carbon-dioxide regenerating towers, 5- is again
Raw tower cooler device, 6- drainers, 7- exit branch road, 8- water inlet pipes road.
Specific implementation mode
Below in conjunction with Figure of description, the utility model is further described.
As shown in Figure 1, scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system, including carbon dioxide de
Except tower 1, washing water cooler 2, washing water pump 3, carbon-dioxide regenerating tower 4, regenerator cooler 5, drainer 6, exit branch
Road 7 and water inlet pipe road 8.1 bottom of carbon dioxide eliminating tower is equipped with washing water pump 3, and 3 one end of washing water pump passes through pipeline and dioxy
Change the bottom water outlet connection of carbon removing tower 1, washing water cooler 2 is arranged by piping connection in the other end, and passes through washings
The upper end water inlet piping connection of cooler 2 and carbon dioxide eliminating tower 1, constitutes circulation loop, and the washing water cooler 2 is adopted
With plate heat exchanger, and use external cooling water cooling；4 side of the carbon-dioxide regenerating tower is equipped with drainer 6, the dioxy
Change and regenerator cooler 5, the washing water pump 3 and washing water cooling are arranged by piping connection between carbon regenerator 4 and drainer 6
But exit branch road 7 and water inlet pipe road 8, the exit branch road 7 and regenerator cooler are circumscribed on the pipeline between device 2
5 water inlet connection, the water outlet of regenerator cooler 5 is connect with water inlet pipe road 8, to constitute cooling circuit.
Operation principle：
Circulating air is inversely contacted through carbon dioxide eliminating tower 1 with poor carbonate solution, the CO in absorption cycle gas2, remove
CO2Poor circulating air continue to rise to the washing part of 1 top of tower of carbon dioxide eliminating tower, poor circulating air herein with washings
The washings through flow control of cooler 2 inversely contact, and washing, which removes the carbon acid solution of deentrainment and condenses excessive water, steams
Gas is not to influence catalyst activity to keep moisture content in reactor feed gas and carbonate minimum.Washing after washing
Water drains into presaturation part through Liquid level, washings from behind presaturation part largely via washing water pump 3, washing water cooling
But device 2 is recycled to the top of carbon dioxide eliminating tower 1 again, portion of washing water by Liquid level Valved discharge to carbon dioxide again
In raw tower 4, using steam by CO2It is stripped out from carbonate solution, heat is by direct steam（Live steam injects）With
It is provided by regeneration tower reboiler.4 top gas phase material of carbon-dioxide regenerating tower includes mainly CO2, water and some ethylene glycol, this portion
Point material enters regenerator cooler lime set tank 6 after being cooled down by regenerator cooler 5, the cooling water of regenerator cooler 5 by
1 bottom of tower washings of carbon dioxide eliminating tower are provided by washing water pump 3, and 1 bottom of tower presaturation section temperature of carbon dioxide eliminating tower is about
37 DEG C, design is 50T/H by 5 flow of regenerator cooler, it is cooling after about 43 DEG C of 5 outlet mass temperatures of regenerator cooler,
Equality circuit production requirement.Due to being increased by 5 temperature of washing water after cooling of regenerator cooler, water cooler 2 will be washed
It is changed to the higher plate heat exchanger of heat exchange efficiency, design postcooling water flow is down to 100t/h by original 200t/h, is washed
2 outlet temperature of water cooler maintains 30 DEG C before improving, and saves cooling water 100t/h, and regenerator cooler 5 saves cooling water about
50T/H。
Claims (3)
1. scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system, including carbon dioxide eliminating tower（1）And two
Carbonoxide regenerator（4）, which is characterized in that the carbon dioxide eliminating tower（1）Bottom is equipped with washing water pump（3）, the washing
Water pump（3）One end passes through pipeline and carbon dioxide eliminating tower（1）The connection of bottom water outlet, the other end is arranged by piping connection
Wash water cooler（2）, and by washing water cooler（2）With carbon dioxide eliminating tower（1）Upper end water inlet piping connection,
Constitute circulation loop；The carbon-dioxide regenerating tower（4）Side is equipped with drainer（6）, the carbon-dioxide regenerating tower（4）With it is cold
Solidifying tank（6）Between pass through piping connection be arranged regenerator cooler（5）, the washing water pump（3）With washing water cooler（2）It
Between pipeline on be circumscribed with exit branch road（7）And water inlet pipe road（8）, the exit branch road（7）With regenerator cooler
（5）Water inlet connection, regenerator cooler（5）Water outlet and water inlet pipe road（8）Connection is returned to constitute cooling cycle
Road.
2. scrubbing tower washings according to claim 1 are used as carbon-dioxide regenerating tower top gas cooling water system, feature
It is, the washing water cooler（2）Using plate heat exchanger.
3. scrubbing tower washings according to claim 1 are used as carbon-dioxide regenerating tower top gas cooling water system, feature
It is, the washing water cooler（2）Using external cooling water cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721900126.XU CN207871583U (en) | 2017-12-29 | 2017-12-29 | Scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721900126.XU CN207871583U (en) | 2017-12-29 | 2017-12-29 | Scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207871583U true CN207871583U (en) | 2018-09-18 |
Family
ID=63503392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721900126.XU Active CN207871583U (en) | 2017-12-29 | 2017-12-29 | Scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207871583U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742174A (en) * | 2019-10-29 | 2021-05-04 | 中国石油化工股份有限公司 | Method for removing alcohol from decarbonization unit of ethylene oxide/ethylene glycol device |
-
2017
- 2017-12-29 CN CN201721900126.XU patent/CN207871583U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112742174A (en) * | 2019-10-29 | 2021-05-04 | 中国石油化工股份有限公司 | Method for removing alcohol from decarbonization unit of ethylene oxide/ethylene glycol device |
| CN112742174B (en) * | 2019-10-29 | 2022-09-09 | 中国石油化工股份有限公司 | Method for removing alcohol from decarbonization unit of ethylene oxide/ethylene glycol device |
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