CN203620271U - High-efficiency ethylene glycol product waste heat recovery device - Google Patents
High-efficiency ethylene glycol product waste heat recovery device Download PDFInfo
- Publication number
- CN203620271U CN203620271U CN201420085492.4U CN201420085492U CN203620271U CN 203620271 U CN203620271 U CN 203620271U CN 201420085492 U CN201420085492 U CN 201420085492U CN 203620271 U CN203620271 U CN 203620271U
- Authority
- CN
- China
- Prior art keywords
- ethylene glycol
- tower
- pump
- heat recovery
- desalted water
- 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 - Fee Related
Links
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 title claims abstract description 255
- 238000011084 recovery Methods 0.000 title claims abstract description 21
- 239000002918 waste heat Substances 0.000 title claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000000746 purification Methods 0.000 claims abstract description 17
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims abstract description 13
- 238000010992 reflux Methods 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000001704 evaporation Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 3
- 230000008929 regeneration Effects 0.000 abstract 1
- 238000011069 regeneration method Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000000470 constituent Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003020 moisturizing effect Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-M Bicarbonate Chemical compound OC([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-M 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- -1 ethylene glycol compound Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
-
- 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
-
- 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
- Y02P20/50—Improvements relating to the production of bulk chemicals
-
- 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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The utility model relates to a high-efficiency ethylene glycol product waste heat recovery device, belonging to the technical field of waste heat recovery devices. The high-efficiency ethylene glycol product waste heat recovery device comprises an ethylene glycol purification tower, wherein a tower top cooler and a pressure maintaining mechanism are arranged at the tower top of the ethylene glycol purification tower, and the tower bottom of the ethylene glycol purification tower forms a circulating system with a tower bottom ethylene glycol pump and an ethylene glycol purification tower bottom reboiler; the middle part of the ethylene glycol purification tower is sequentially connected with a tower middle ethylene glycol pump, a desalted water heat exchanger, a circulating water heat exchanger and a product tank field; the ethylene glycol purification tower, the tower middle ethylene glycol pump and a reflux regulating valve form a reflux circulating system. According to the high-efficiency ethylene glycol product waste heat recovery device, the evaporation of ethylene glycol is convenient through the arrangement of the pressure maintaining mechanism, ethylene glycol is cooled through the tower top cooler to become liquid, the liquid is pumped into the desalted water heat exchanger through the tower middle ethylene glycol pump to be cooled, desalted water absorbs heat and then is heated, and then the desalted water is injected into a carbonate regeneration tower for utilization, so that the purpose of waste heat recovery is achieved; the ethylene glycol purification tower is internally provided with the reflux circulating system, so that a heavy component and ethylene glycol are more thoroughly separated, and the purity of ethylene glycol is enhanced; the effects of energy conservation and environmental friendliness are achieved.
Description
Technical field
The utility model belongs to waste-heat recovery device technical field, is specifically related to a kind of high efficiency ethylene glycol product waste-heat recovery device of energy-conservation, environmental protection.
Background technology
Because ethylene glycol boiling point is higher, in production separation process, need to expend a large amount of steam, the temperature of ethylene glycol side line extraction under nominal situation by 159 ℃ by circulating water to 45 ℃ laggard tank, thereby cause part thermal loss.Environmental factor is larger on the temperature impact of circulating water main simultaneously, and heated recirculated water needs blower fan cooling, and the heat producing after cooling is discharged to atmosphere.On the contrary, at the bottom of carbonate regenerator need to utilize low-pressure steam by tower, carbonate solution heating (90 ℃ rise to 107 ℃) decomposes to deviate from bicarbonate the carbon dioxide producing, but in heating process, the water in solution is also evaporated, needs to fill into desalted water simultaneously and keep liquid level.And original moisturizing is normal temperature (20 ℃) desalted water, too large with the temperature difference in system, after injection, make regenerator at the bottom of temperature fluctuation large, cause the required heating steam quantitative change of tower bottom reboiler large (10t/h), the steady production of system is had to larger impact.
Utility model content
For the above-mentioned problems in the prior art, the purpose of this utility model is to provide a kind of high efficiency ethylene glycol product waste-heat recovery device of energy-conservation, environmental protection, by the heat recovery and utilization of ethylene glycol cooling, be used for heating desalted water, then the desalted water after heating is delivered to the utilization of carbonate regenerator.
The high efficiency ethylene glycol product of described one waste-heat recovery device, comprise ethylene glycol purifying column, it is characterized in that described ethylene glycol purifying column tower top arranges tower top cooler and pressure maintains mechanism, at the bottom of tower, form a circulatory system with eg pump, ethylene glycol purification tower bottom reboiler at the bottom of tower, ethylene glycol purifying column middle part is connected with eg pump, desalted water heat exchanger, Heat Exchanger in Circulating Water System and product tank field in tower successively, and in ethylene glycol purifying column, tower, eg pump and return valve form reflux cycle system.
The high efficiency ethylene glycol product of described one waste-heat recovery device, is characterized in that described pressure maintains the stram condenser that mechanism comprises vavuum pump and is connected with vavuum pump, and described vavuum pump is connected with ethylene glycol purifying column tower top.
The high efficiency ethylene glycol product of described one waste-heat recovery device, is characterized in that the desalted water for heat exchange in described desalted water heat exchanger is connected with carbonate regenerator.
The high efficiency ethylene glycol product of above-mentioned one waste-heat recovery device, comprise ethylene glycol purifying column, tower top cooler is set described ethylene glycol purifying column tower top and pressure maintains mechanism, at the bottom of tower, form a circulatory system with eg pump, ethylene glycol purification tower bottom reboiler at the bottom of tower, ethylene glycol purifying column middle part is connected with eg pump, desalted water heat exchanger, Heat Exchanger in Circulating Water System and product tank field in tower successively, and in ethylene glycol purifying column, tower, eg pump and return valve form reflux cycle system.The utility model adopts above-mentioned technology, by being set, pressure maintains mechanism, make ethylene glycol purifying column maintain vacuum, be convenient to the evaporation of ethylene glycol, after ethylene glycol is cooling by tower item cooler, become liquid, pumping into desalted water heat exchanger by eg pump in tower lowers the temperature, after desalted water heat absorption, heat up, reinject in carbonate regenerator and utilize, reach the object of waste heat recovery, and ethylene glycol purifying column, in tower, eg pump and return valve form reflux cycle system, make the heavy constituent in ethylene glycol purifying column separate more thorough with ethylene glycol, improve the purity of ethylene glycol, have energy-conservation, the effect of environmental protection.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1-ethylene glycol purifying column, eg pump at the bottom of 2-tower, 3-ethylene glycol purification tower bottom reboiler, eg pump in 4-tower, 5-desalted water heat exchanger, 6-Heat Exchanger in Circulating Water System, 7-vavuum pump, 8-stram condenser, 9-tower top cooler, 10-return valve.
The specific embodiment
Below in conjunction with Figure of description, the utility model will be further described:
As shown in Figure 1, a kind of high efficiency ethylene glycol product waste-heat recovery device, comprise ethylene glycol purifying column 1, tower top cooler 9 is set described ethylene glycol purifying column 1 tower top and pressure maintains mechanism, described pressure maintains the stram condenser 8 that mechanism comprises vavuum pump 7 and is connected with vavuum pump 7, described vavuum pump 7 is connected with ethylene glycol purifying column 1 tower top, at the bottom of tower with tower at the bottom of eg pump 2, ethylene glycol purification tower bottom reboiler 3 forms a circulatory system, ethylene glycol purifying column 1 middle part successively with tower in eg pump 4, desalted water heat exchanger 5, Heat Exchanger in Circulating Water System 6 and product tank field connect, ethylene glycol purifying column 1, in tower, eg pump 4 and return valve 10 form reflux cycle system, the desalted water for heat exchange in described desalted water heat exchanger 5 is connected with carbonate regenerator, ethylene glycol is after desalted water heat exchanger 5 is cooling, temperature is down to 65.2 ℃ of left and right, after being cooled to 45 ℃, Heat Exchanger in Circulating Water System 6 enters again products pot district, desalted water temperature after heat exchange reaches 88.7 ℃ of left and right, desalted water after being warmed, by the utilization of control valve control Implantation hydrochlorate regenerator, decomposes to deviate from bicarbonate the carbon dioxide producing by carbonate solution heating (90 ℃ rise to 107 ℃) at the bottom of carbonate regenerator tower.
When the utility model uses, from the tower middle part charging of ethylene glycol purifying column 1, at the bottom of entering tower, due to eg pump at the bottom of tower 2, ethylene glycol purification tower bottom reboiler 3 forms a circulatory system, at the bottom of tower, the ethylene glycol compound at the bottom of tower is pumped into ethylene glycol purification tower bottom reboiler 3 by eg pump 2, by passing into high steam to ethylene glycol purification tower bottom reboiler 3, to ethylene glycol mixed material heating, make ethylene glycol evaporation, ethylene glycol gas enters tower top, pass through the cooling of tower top cooler 9, becoming high-temp liquid gets back in ethylene glycol purifying column 1, pump into successively desalted water heat exchanger 5 by eg pump in tower 4, Heat Exchanger in Circulating Water System 6, carry out secondary heat exchange, reach after temperature required and enter products pot district, desalted water liquid temp in desalted water heat exchanger 5 enters the utilization of glycol recycling tower after heating up, in whole process, return valve 10 is set on the pipeline of eg pump 4 in tower, form circulation with ethylene glycol purifying column 1, part ethylene glycol is back in ethylene glycol purifying column 1, by ethylene glycol steam in tower with a small amount of heavy constituent separate, at the bottom of being back to tower, thereby improve the purity of ethylene glycol, the heavy constituent staying in ethylene glycol purification tower bottom reboiler 3 flows out from reboiler bottom gradually, in whole purification process, ethylene glycol purifying column 1 tower top is connected with vavuum pump 7 all the time, by to the interior logical high steam of vavuum pump 7, ethylene glycol purifying column 1 inside is evacuated to vacuum, improve refining effect, and vavuum pump 7 other ends connect stram condenser 8, the high steam passing into connects condensation by stram condenser 8.
The utility model is by adopting above-mentioned technology, change after original ethylene glycol purifying column 1 sideline product is extracted out and only deliver to product tank field through Heat Exchanger in Circulating Water System 6, carbonate regenerator regenerative section moisturizing simultaneously adopts the flow process of normal temperature desalted water, after ethylene glycol purifying column 1 lateral line withdrawal function, first pass through 5 heat exchange of desalted water heat exchanger, pass through again Heat Exchanger in Circulating Water System 6 heat exchange, thereby reach product and enter tank requirement temperature, after secondary heat exchange, temperature can be down to smoothly product and be entered tank requirement temperature, and add carbonate regenerator as moisturizing by control valve control again by the desalted water after 5 heat exchange of desalted water heat exchanger, improve ethylene glycol product waste heat recovery efficiency by this device, reduce the use amount of recirculated water, reduce the load of Heat Exchanger in Circulating Water System 6, reduce the required electric weight of cooling circulating water in Heat Exchanger in Circulating Water System 6, reduce the heat that is disposed to atmosphere, avoid the fluctuation after carbonate regenerator reboiler required quantity of steam (having reduced 3t/h) and desalted water injected system, realize reusing of energy source, guarantee the production of safety and steady, improve economic benefit, realize energy-conservation.
Claims (3)
1. a high efficiency ethylene glycol product waste-heat recovery device, comprise ethylene glycol purifying column (1), it is characterized in that described ethylene glycol purifying column (1) tower top arranges tower top cooler (9) and pressure maintains mechanism, at the bottom of tower with tower at the bottom of eg pump (2), ethylene glycol purification tower bottom reboiler (3) forms a circulatory system, ethylene glycol purifying column (1) middle part successively with tower in eg pump (4), desalted water heat exchanger (5), Heat Exchanger in Circulating Water System (6) and product tank field connect, ethylene glycol purifying column (1), eg pump in tower (4) and return valve (10) form reflux cycle system.
2. the high efficiency ethylene glycol product of one according to claim 1 waste-heat recovery device, it is characterized in that described pressure maintains the stram condenser (8) that mechanism comprises vavuum pump (7) and is connected with vavuum pump (7), described vavuum pump (7) is connected with ethylene glycol purifying column (1) tower top.
3. the high efficiency ethylene glycol product of one according to claim 1 waste-heat recovery device, is characterized in that the desalted water for heat exchange in described desalted water heat exchanger (5) is connected with carbonate regenerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085492.4U CN203620271U (en) | 2014-02-27 | 2014-02-27 | High-efficiency ethylene glycol product waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420085492.4U CN203620271U (en) | 2014-02-27 | 2014-02-27 | High-efficiency ethylene glycol product waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203620271U true CN203620271U (en) | 2014-06-04 |
Family
ID=50806799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420085492.4U Expired - Fee Related CN203620271U (en) | 2014-02-27 | 2014-02-27 | High-efficiency ethylene glycol product waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203620271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048743A (en) * | 2016-08-24 | 2016-10-26 | 江苏鑫龙化纤机械有限公司 | Method for cleaning fine-denier yarn spinneret |
| CN115040882A (en) * | 2022-07-12 | 2022-09-13 | 浙江三江化工新材料有限公司 | Device and method for removing ethylene glycol impurities |
-
2014
- 2014-02-27 CN CN201420085492.4U patent/CN203620271U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106048743A (en) * | 2016-08-24 | 2016-10-26 | 江苏鑫龙化纤机械有限公司 | Method for cleaning fine-denier yarn spinneret |
| CN106048743B (en) * | 2016-08-24 | 2019-02-19 | 江苏鑫龙化纤机械有限公司 | A kind of cleaning method of fine-denier filament spinneret ethanediol |
| CN115040882A (en) * | 2022-07-12 | 2022-09-13 | 浙江三江化工新材料有限公司 | Device and method for removing ethylene glycol impurities |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103752142B (en) | A kind of solar energy auxiliary carbon dioxide trapping integrated system | |
| CN103161528B (en) | Work and coldness co-production system and method of recovering working medium effective ingredient refrigeration | |
| CN103808060B (en) | Band flash vessel two-stage absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit | |
| CN106766342B (en) | System for recovering ammonia steam waste heat at top of ammonia still tower by using lithium bromide absorption heat pump | |
| CN104390388A (en) | Steam type spraying-dead steam direct absorption type compound heat pump system | |
| CN203464249U (en) | Condensed water heat regenerative system with absorption heat pump | |
| CN104479734A (en) | Catalytic cracking fractionation and absorbing-stabilizing system and energy-saving method | |
| CN203704433U (en) | Two-stage lithium bromide absorption heat transformer unit with flash evaporator | |
| CN203620271U (en) | High-efficiency ethylene glycol product waste heat recovery device | |
| CN102914085A (en) | Cooling water waste heat recycling system | |
| CN203704434U (en) | Two-stage lithium bromide absorption heat transformer unit with refrigerant water preheater | |
| CN104403700A (en) | Device and method for coke oven gas cooling and residual heat recycling | |
| CN103808058B (en) | Band water as refrigerant preheater two-stage Equations of The Second Kind lithium bromide absorption type heat pump unit | |
| CN205243651U (en) | Can realize high -efficient closed nature gas power generation system of 100% carbon recovery | |
| CN204251571U (en) | Coke-oven gas cooling and waste heat recovery device | |
| CN103808059B (en) | Secondary generation secondary absorbs Equations of The Second Kind lithium bromide absorption type heat pump unit | |
| CN107166979B (en) | Comprehensive utilization system for waste heat of calciner in carbon plant | |
| CN204952598U (en) | Retrieve regenerating unit of carbon dioxide regeneration gas waste heat | |
| CN205807387U (en) | Power plant's demineralized water absorbs residual neat recovering system | |
| CN203704432U (en) | Secondary-generating and secondary-absorbing second type lithium bromide absorption type heat pump unit | |
| CN103060498A (en) | Blast furnace cinder flushing water residual heat power generation system | |
| CN207738712U (en) | A kind of raw coke oven gas waste heat is used for the hot water cyclesystem of vacuum potassium carbonate desulfurization | |
| CN203908103U (en) | Combined ammonia compression refrigerating system | |
| CN104629818B (en) | Vacuum carbonate desulphurization rich solution economic benefits and social benefits desorption technique and system | |
| CN203295398U (en) | Circulating device for preparing urea |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 |