CN203904017U - High-efficiency ammonia distillation system for surplus ammonia water - Google Patents
High-efficiency ammonia distillation system for surplus ammonia water Download PDFInfo
- Publication number
- CN203904017U CN203904017U CN201420343485.XU CN201420343485U CN203904017U CN 203904017 U CN203904017 U CN 203904017U CN 201420343485 U CN201420343485 U CN 201420343485U CN 203904017 U CN203904017 U CN 203904017U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- pump
- waste water
- heat
- output terminal
- 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
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model discloses a high-efficiency ammonia distillation system for surplus ammonia water. The high-efficiency ammonia distillation system comprises an ammonia distillation tower and is characterized in that a heat pipe type heat exchanger is arranged at the top of the ammonia distillation tower, a hot medium input end of the heat pipe type heat exchanger is connected with an ammonia vapor output end of the ammonia distillation tower, a hot medium output end of the heat pipe type heat exchanger is connected with an input end of an ammonium sulfate procedure saturator; a cold medium input end of the heat pipe type heat exchanger is connected with a raw material surplus ammonia water tank through a surplus ammonia water pump, and a cold medium output end of the heat pipe type heat exchanger is connected with the ammonia distillation tower through a condensate reflux pipeline; the bottom of the ammonia distillation tower is connected with a first waste water pump for pumping waste water from the tower bottom, an output end of the first waste water pump is connected with a first input end of a reboiler, an output end of the first waste water pump is further connected with an input end of a flash evaporation kettle, a first output end of the reboiler is connected with an input end of a vapor heating pump, a vapor output end of the flash evaporation kettle is connected to an input end of the vapor heating pump, and an output end of the vapor heating pump is connected with the ammonia distillation tower. The system can realize the cyclic utilization of latent heat of ammonia vapor at the tower top and sensible heat of waste water at the tower bottom.
Description
Technical field
The utility model relates to residual coking ammonia water processing technology field, specifically a kind of efficient remained ammonia ammonia steaming system.
Background technology
Coal produces all higher remained ammonias of a certain amount of ammonia nitrogen, prussiate, sulfide, phenol and COD concentration in coking.Remained ammonia generally will pass through the treatment process such as oil removing, dephenolize, ammonia still process, phenol-cyanogen sewage.Ammonia still process is to remove ammonia, prussiate and the sulfide in remained ammonia by distillation, improves waste water quality, meets the requirement of phenol-cyanogen sewage treatment process, reclaims ammonia for desulfurization simultaneously or produces sulphur ammonium.Remained ammonia ammonia distillation process is divided into water vapor ammonia still process, thermal oil ammonia still process and tube furnace ammonia still process by type of heating; By working pressure, can be divided into again normal pressure ammonia still process and negative pressure ammonia still process, no matter which kind of remained ammonia ammonia distillation process tower top ammonia vapour is taken away the approximately 80-90% that distills thermal losses, and ammonia vapour need to be in dephlegmator with in warm water condensing cooling be liq ammonia, middle warm water recycles after cooling rack is cooling; At the bottom of tower, after waste water and the heat exchange of raw material remained ammonia, need to use again water cooler cooling, increase middle temperature quantity of circulating water, increase water consumption; At the bottom of tower, take coal gas or steam provides distillation heat as heat source again.At the bottom of ammonia still, distilled ammonia wastewater is only by having reclaimed portion of energy with the heat exchange of raw material remained ammonia, and ammonia still tower top ammonia vapour heat energy is not recycled, and has increased energy consumption and water consumption, has reduced energy utilization rate.
Heat pipe is a kind of high-performance heat transfer components, than conventional heat-exchange equipment safety and reliability, can move continuously for a long time, and cold fluid and hot fluid does not contact, and cold and hot segment structure flexible arrangement, is to apply wider energy-conserving and emission-cutting technology.At present to be applied to remained ammonia ammonia still process be only to reclaim recycling waste water at the bottom of flue gases of cock oven waste-heat ammonia still by hot tube heat exchanger to heat pipe, at the bottom of the recycling waste water after temperature rising returns to tower, provides distillation thermal losses.
Heat pump is for to low taste energy compression pressurization, is called again vapour compressor, and wherein steam jet heat pump belongs to and take heat energy as power, without the vapour compressor of running gear.Steam heat pump waste water sensible heat at the bottom of ammonia still process is applied to open steam ammonia still process to reclaim ammonia still, is generally vapour source with superheated vapour at present, and the vapor mixing that live steam and waste water flash distillation are produced enters ammonia still, has increased wastewater flow rate and fresh water consumption.
Utility model content
The shortcoming existing in order to overcome above-mentioned prior art, the purpose of this utility model is to provide a kind of efficient remained ammonia ammonia steaming system, realizes the recycle of waste water sensible heat at the bottom of tower top ammonia vapour latent heat and tower.
In order to address the above problem, the utility model by the following technical solutions: a kind of efficient remained ammonia ammonia steaming system, comprises ammonia still; It is characterized in that:
The top of described ammonia still is provided with heat-pipe heat exchanger, and the thermal medium input terminus of heat-pipe heat exchanger is connected with the ammonia vapour output terminal of ammonia still, and the thermal medium output terminal of heat-pipe heat exchanger is connected with the input terminus of sulphur ammonium operation saturex; The cold medium input terminus of heat-pipe heat exchanger is connected with raw material remained ammonia groove by remained ammonia pump, and the cold medium output terminal of heat-pipe heat exchanger connects in ammonia still by phlegma reflux line;
The bottom of described ammonia still is connected with the first waste water pump that extracts waste water at the bottom of tower, the first waste water delivery side of pump is connected to the first input end of reboiler, the first waste water delivery side of pump is also connected with the input terminus of flash vaporization kettle, the first output terminal of reboiler connects the input terminus of steam heat pump, the steam output end of flash vaporization kettle is connected to the input terminus of steam heat pump, and steam heat delivery side of pump is connected to ammonia still.
Further technical scheme as a kind of efficient remained ammonia ammonia steaming system: the liquid output terminal of described flash vaporization kettle connects the input terminus of the second waste water pump, the second waste water delivery side of pump is connected to the input terminus of water cooler, and the output terminal of water cooler is connected to raw de-treatment system.
Further technical scheme as a kind of efficient remained ammonia ammonia steaming system: the equalizing tank of the de-treatment system of making a living that the output terminal of described water cooler connects.
As a kind of another kind of efficient remained ammonia ammonia steaming system technical scheme further: the accident pool of the de-treatment system of making a living that the output terminal of described water cooler connects.
The beneficial effects of the utility model are: the hot tube heat exchanger that the utility model arranges, with raw material remained ammonia cooling tower top ammonia vapour; The steam that reboiler produces, by waste water sensible heat at the bottom of steam heat pump recovery tower, returns to ammonia still distillation thermal losses is provided; Both realize the tower top ammonia vapour pick up the heat of diving, recycled again waste water sensible heat at the bottom of ammonia still, improved energy utilization rate, reduced ammonia still process energy consumption.Specifically there is following characteristics:
(I) by High Efficiency Thermal tubular type interchanger, recycles ammonia still process ammonia vapour waste heat and is used for heating raw remained ammonia, has improved raw material and has entered tower temperature, has reduced ammonia still process thermal losses, has realized the heat recovery of ammonia still process ammonia vapour.
(II) take the steam that reboiler produces is power, with distilled ammonia wastewater sensible heat at the bottom of steam heat pump recovery tower, and absorbs into tower distillation thermal losses is provided, and has further reduced ammonia still process energy input.
(III), by High Efficiency Thermal tubular type interchanger, realized with the cooling ammonia still process ammonia of remained ammonia vapour, do not re-use middle warm water, reduced water consumption;
It is power that (IV) steam heat pump be take the steam that reboiler produces, and does not use superheated vapour, does not produce new waste water.
(V) this technique can be suitable for steam ammonia still process, thermal oil ammonia still process and tube furnace ammonia still process, and the extent of spreading amd application is wide.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described further:
Fig. 1 is the structural representation of the utility model embodiment;
In figure: 1 raw material remained ammonia groove, 2 remained ammonia pumps, 3 heat-pipe heat exchangers, 4 ammonia stills, 5 sulphur ammonium operation saturexs, 6 first waste water pumps, 7 reboilers, 8 flash vaporization kettles, 9 steam heat pumps, 10 second waste water pumps, 11 water coolers, 12 raw de-treatment systems.
Embodiment
As shown in Figure 1, this efficient remained ammonia ammonia steaming system, comprise ammonia still 4, the top of described ammonia still 4 is provided with heat-pipe heat exchanger 3, the thermal medium input terminus of heat-pipe heat exchanger 3 is connected with the ammonia vapour output terminal of ammonia still 4, and the thermal medium output terminal of heat-pipe heat exchanger 3 is connected with the input terminus of sulphur ammonium operation saturex 5; The cold medium input terminus of heat-pipe heat exchanger 3 is connected with raw material remained ammonia groove 1 by remained ammonia pump 2, and the cold medium output terminal of heat-pipe heat exchanger 3 connects in ammonia still 4 by phlegma reflux line.
In this colleges and universities' remained ammonia ammonia steaming system, the bottom of ammonia still 4 is connected with the first waste water pump 6 that extracts waste water at the bottom of tower, the output terminal of the first waste water pump 6 is connected to the first input end of reboiler 7, the output terminal of the first waste water pump 6 is also connected with the input terminus of flash vaporization kettle 8, the first output terminal of reboiler 7 connects the input terminus of steam heat pump 9, the steam output end of flash vaporization kettle 8 is connected to the input terminus of steam heat pump 9, and the output terminal of steam heat pump 9 is connected to ammonia still 4.
The liquid output terminal of described flash vaporization kettle 8 connects the input terminus of the second waste water pump 10, and the output terminal of the second waste water pump 10 is connected to the input terminus of water cooler 11, and the output terminal of water cooler 11 is connected to the equalizing tank of raw de-treatment system 12; Output terminal that can also water cooler 11 is connected to the accident pool of raw de-treatment system 12.
Ammonia still 4 is major equipments of remained ammonia ammonia still process, and raw material remained ammonia utilizes at ammonia still 4 that the boiling point of ammonia and water is different to carry out separatedly, and tower top obtains ammonia and water vapor mixture-ammonia vapour, enters heat-pipe heat exchanger 3, obtains distilled ammonia wastewater at the bottom of tower.
Remained ammonia in raw material remained ammonia groove 1, after 2 pressurizations of remained ammonia pump, is delivered to heat-pipe heat exchanger 3.In heat-pipe heat exchanger 3, ammonia still process ammonia vapour waste heat passes to remained ammonia by heat pipe, and remained ammonia temperature enters ammonia still 4 after raising and distills, and the ammonia of ammonia still process simultaneously vapour, by partial condensation, flows into ammonia still 4 certainly as refluxing, and exhaust steam enters sulphur ammonium saturex 5.
Waste water at the bottom of ammonia still 4 towers is extracted out at the bottom of tower by the first waste water pump 6, and reboiler 7 is delivered on a small amount of waste water Jing Yi road, and a large amount of waste water send flash vaporization kettle 8 through another road.Reboiler 7 is connected with steam heat pump 9, after reboiler 7 waste water absorb thermal oil or steam heat, vaporization enters ammonia still 4 by steam heat pump 9, steam heat pump 9 produces negative pressure, negative pressure end is connected with flash vaporization kettle 8, flash vaporization kettle 8 internal pressures have been reduced, thereby the boiling point that has reduced flash vaporization kettle 8 interior water, waste water is flash distillation therein, generating portion steam; This steam, under the suction function of steam heat pump 9, enters ammonia still 4 by steam heat pump 9 and the vapor mixing from reboiler 7, and distillation thermal losses is provided.
Native system passes through heat-pipe heat exchanger 3 use remained ammonia cooling tower top ammonia vapour at the tower top of ammonia still 4, reclaims tower top ammonia vapour latent heat and improves remained ammonia inlet temperature of stabilizer, has recycled ammonia vapour latent heat, has reduced middle warm water consumption; At the bottom of tower, the steam that the reboiler 7 of take produces is power, returns to ammonia still 4 distillation thermal losses is provided with waste water sensible heat at the bottom of steam heat pump 9 recovery towers, has further reduced distillation thermal losses, and has not increased waste water, thereby realized the efficient operation of ammonia still process.
Except the technical characterictic described in specification sheets, be the known technology of those skilled in the art.
Claims (4)
1. an efficient remained ammonia ammonia steaming system, comprises ammonia still; It is characterized in that:
The top of described ammonia still is provided with heat-pipe heat exchanger, and the thermal medium input terminus of heat-pipe heat exchanger is connected with the ammonia vapour output terminal of ammonia still, and the thermal medium output terminal of heat-pipe heat exchanger is connected with the input terminus of sulphur ammonium operation saturex; The cold medium input terminus of heat-pipe heat exchanger is connected with raw material remained ammonia groove by remained ammonia pump, and the cold medium output terminal of heat-pipe heat exchanger connects in ammonia still by phlegma reflux line;
The bottom of described ammonia still is connected with the first waste water pump that extracts waste water at the bottom of tower, the first waste water delivery side of pump is connected to the first input end of reboiler, the first waste water delivery side of pump is also connected with the input terminus of flash vaporization kettle, the first output terminal of reboiler connects the input terminus of steam heat pump, the steam output end of flash vaporization kettle is connected to the input terminus of steam heat pump, and steam heat delivery side of pump is connected to ammonia still.
2. a kind of efficient remained ammonia ammonia steaming system according to claim 1, it is characterized in that: the liquid output terminal of described flash vaporization kettle connects the input terminus of the second waste water pump, the second waste water delivery side of pump is connected to the input terminus of water cooler, and the output terminal of water cooler is connected to raw de-treatment system.
3. a kind of efficient remained ammonia ammonia steaming system according to claim 2, is characterized in that: the equalizing tank of the de-treatment system of making a living that the output terminal of described water cooler connects.
4. a kind of efficient remained ammonia ammonia steaming system according to claim 2, is characterized in that: the accident pool of the de-treatment system of making a living that the output terminal of described water cooler connects.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420343485.XU CN203904017U (en) | 2014-06-25 | 2014-06-25 | High-efficiency ammonia distillation system for surplus ammonia water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420343485.XU CN203904017U (en) | 2014-06-25 | 2014-06-25 | High-efficiency ammonia distillation system for surplus ammonia water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203904017U true CN203904017U (en) | 2014-10-29 |
Family
ID=51778307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420343485.XU Expired - Fee Related CN203904017U (en) | 2014-06-25 | 2014-06-25 | High-efficiency ammonia distillation system for surplus ammonia water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203904017U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107010685A (en) * | 2017-04-26 | 2017-08-04 | 长岭炼化岳阳工程设计有限公司 | It is a kind of to be hydrogenated with the apparatus and method utilized with non-hydrogenation type sewage stripping energy coupling |
| CN108249493A (en) * | 2016-12-28 | 2018-07-06 | 宝钢工程技术集团有限公司 | Energy-saving decompression ammonia steaming device and its application method |
| CN112978761A (en) * | 2019-12-12 | 2021-06-18 | 上海梅山钢铁股份有限公司 | Ammonia still ammonia steam waste heat utilization device |
-
2014
- 2014-06-25 CN CN201420343485.XU patent/CN203904017U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108249493A (en) * | 2016-12-28 | 2018-07-06 | 宝钢工程技术集团有限公司 | Energy-saving decompression ammonia steaming device and its application method |
| CN107010685A (en) * | 2017-04-26 | 2017-08-04 | 长岭炼化岳阳工程设计有限公司 | It is a kind of to be hydrogenated with the apparatus and method utilized with non-hydrogenation type sewage stripping energy coupling |
| CN107010685B (en) * | 2017-04-26 | 2020-08-18 | 长岭炼化岳阳工程设计有限公司 | Device and method for coupling and utilizing hydrogenation and non-hydrogenation type acidic water stripping energy |
| CN112978761A (en) * | 2019-12-12 | 2021-06-18 | 上海梅山钢铁股份有限公司 | Ammonia still ammonia steam waste heat utilization device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106766342B (en) | System for recovering ammonia steam waste heat at top of ammonia still tower by using lithium bromide absorption heat pump | |
| CN100578118C (en) | Oil field produced water heat pump technique | |
| CN102807259A (en) | Heat pump distillation system of residual ammonia water | |
| CN203904017U (en) | High-efficiency ammonia distillation system for surplus ammonia water | |
| CN102602960B (en) | Method for stilling ammonia by aid of waste heat of flue gas of coke oven and equipment | |
| CN103833093B (en) | Energy-saving and environment-friendly device and technology for producing concentrated ammonia water | |
| CN101993736B (en) | Method and device for regenerating circular wash oil during rich oil debenzolization of gas purification | |
| CN107906505B (en) | Method and system for deeply recycling steam condensate | |
| CN203699954U (en) | Recovery system of ammonia steam waste heat generated in ammonia steaming process | |
| CN210833119U (en) | Energy-saving device for sensible heat utilization of high-temperature condensed water | |
| CN202116342U (en) | Industrial exhaust heat low-temperature multiple-effect seawater desalinization system | |
| CN104403700A (en) | Device and method for coke oven gas cooling and residual heat recycling | |
| CN102267733A (en) | Industrial waste heat low-temperature multi-effect seawater desalting system | |
| CN203946915U (en) | Negative pressure ammonia evaporation system taking cyclic ammonia water as thermal source | |
| CN203890081U (en) | Environment-friendly energy-saving device for producing concentrated ammonia water | |
| CN104056462A (en) | Heat pump distillation energy-saving device | |
| CN204607626U (en) | Coal gas primary cooler waste heat ammonia steaming device | |
| CN204251571U (en) | Coke-oven gas cooling and waste heat recovery device | |
| CN201161936Y (en) | System for desalinating sea water | |
| CN104829032A (en) | Ammonia-nitrogen wastewater treatment system | |
| CN106219650B (en) | Low-quality waste heat utilization system of steel plant and use method thereof | |
| CN103073142A (en) | Multiple-effect-group, low-temperature and multiple-effect distilled seawater desalination system | |
| CN212712829U (en) | Solar photo-thermal seawater desalination integrated system | |
| CN103990372B (en) | The system of ammonia process carbon trapping is carried out in the generating of solar seawater desalination assistant coal | |
| CN106186132A (en) | Low cost power plant zeroth order value waste water evaporation and concentration processing system and method |
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 |
Granted publication date: 20141029 Termination date: 20190625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |