CN203083196U - Device for producing low-temperature water by means of urea waste heat - Google Patents
Device for producing low-temperature water by means of urea waste heat Download PDFInfo
- Publication number
- CN203083196U CN203083196U CN2012206994252U CN201220699425U CN203083196U CN 203083196 U CN203083196 U CN 203083196U CN 2012206994252 U CN2012206994252 U CN 2012206994252U CN 201220699425 U CN201220699425 U CN 201220699425U CN 203083196 U CN203083196 U CN 203083196U
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- China
- Prior art keywords
- lithium bromide
- urea
- waste heat
- pipeline
- water
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model discloses a device for producing low-temperature water by means of urea waste heat. The device comprises a lithium bromide refrigerating system, a urea device, refrigerating equipment and a cooling tower, wherein the refrigerating equipment is connected with an evaporator of the lithium bromide refrigerating system through a pipeline, the urea device is connected with a generator of the lithium bromide refrigerating system through a pipeline, and the cooling tower is connected with an absorber and a condenser of the lithium bromide refrigerating system. According to the device, waste heat produced in a urea production process is utilized to serve as a heat source, and lithium bromide absorption refrigeration technology is adopted to produce refrigerating capacity to carry out cooling on technical media needing temperature reduction. The device can not only reduce hot water discharging, but also produce low-temperature cooling water, and can not only improve production capacity but also reduce production cost. The device has significant energy-saving and production-increasing effects, and has good economic benefits and wide application prospects.
Description
Technical field
The utility model relates to a kind of device that utilizes urea waste heat production water at low temperature, relates in particular to a kind of device that utilizes the lithium bromide absorbing type refrigeration technology production water at low temperature of urea waste heat heat energy driving.
Background technology
Produce a large amount of waste heats in the chemical fertilizer production process, requirement according to production technology, need to consume a lot of recirculated cooling waters this part low potential energy waste heat is removed to keep ordinary production, synthesize and divide the vent one's spleen waste heat of recovery section generation, the first ammonium residual heat of reaction of urea plant absorption system, the conversion gas waste heat before the converting means cooling tower, the methyl alcohol synthetic reaction waste heat before the methanol device water-cooled etc. as urea; On the other hand, in the summer chemical fertilizer production, need many colds that processing medium is cooled off again, as the cooling of the cooling of one section on compressor inlet semiwater gas, cuprammonium washing tower for removing CO inlet cuprammonia, the cooling of carbon dioxide decarburization tower inlet unstripped gas, the cooling of carbon dioxide decarburization tower inlet carbonic allyl ester solution etc.And concerning producing summer, the more colds of chilling requirement are more valuable.If adopting these waste heats to produce cold cools off the processing medium of needs coolings, not only can reduce the consumption of recirculated cooling water, and can reduce the discharge capacity of waste heat and ice maker load, general performance improves output for reducing power consumption, therefore, reclaim the low level waste heat by sorption type refrigerating technology, conventional industries are undergone technological transformation, to improving energy utilization rate, alleviate the nervous situation of energy supply, it is significant to improve economic benefit of enterprises.
Summary of the invention
In order to overcome problems of the prior art, the utility model provides a kind of device that utilizes urea waste heat production water at low temperature, can make full use of the UTILIZATION OF VESIDUAL HEAT IN sorption type refrigerating technology that produces in the urea production process and produce the processing medium that cold satisfies needs coolings and cool off.
The utility model is achieved through the following technical solutions, a kind of device that utilizes the waste heat production water at low temperature in the urea production, it is characterized in that, comprise lithium bromide absorption chiller system (1), urea plant (2), with cool equipment (3) and cooling tower (4), describedly be connected by the evaporimeter of pipeline with lithium bromide absorption chiller system (1) with cool equipment (3), described urea plant (2) is connected by the generator of pipeline with lithium bromide absorption chiller system (1), and described cooling tower (4) links to each other with condenser by the absorber of pipeline with lithium bromide absorption chiller system (1).
Describedly comprise carbon third liquid cooler and semiwater gas cooler with cool equipment (3).
The present invention has significant advantage and positive effect.The utility model utilizes the first ammonium residual heat of reaction of urea plant absorption system and water vapor condensate waste heat to do power by adopting refrigeration system with lithium bromide absorption, realizes producing the purpose of 7-15 ℃ of technology of low temperature with cold water.The effect that the utlity model has tangible energy-saving and environmental protection and economize on resources has good economic benefit and application prospects.
Description of drawings
Fig. 1 is a device schematic diagram of the present utility model.
Among the figure, 1-lithium bromide absorption chiller system, 2-urea plant, 3-cool equipment, 4-cooling tower.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described, example for the usefulness of reference and explanation, is not to be used for range of application of the present utility model is limited only.
As shown in Figure 1, the utility model comprises lithium bromide absorption chiller system, urea plant, uses cool equipment and cooling tower, and refrigeration system with lithium bromide absorption is made up of equipment such as generator, condenser, evaporimeter, absorber, solution heat exchanger and solution pumps.During refrigeration system with lithium bromide absorption work, 80-130 ℃ the hot water that first ammonium residual heat of reaction in the urea plant and water vapor condensate waste heat produce enters generator lithium-bromide solution is heated, because the evaporation of water temperature is more much lower than lithium bromide evaporating temperature in the solution, after so weak solution is heated to uniform temperature, water at first is evaporated to water vapour in the solution, lithium bromide concentration in the residue container is increased, concentrated solution is under the effect of gravity and pressure reduction, after heat exchanger is emitted heat, mix with weak solution in the absorber, become intermediate solution.The water vapour that produces in the generator enters condenser, water cooling is cooled, the water vapour that enters condenser is constantly cooled off, water vapour is emitted the latent heat of vaporization and is condensed into liquid, become water as refrigerant, then by after the throttling arrangement step-down, enter constantly evaporation in the evaporimeter, absorb the heat of cold-water return during evaporation by the tube wall of cold water pipe, make backwater obtain being cooled to 7-15 ℃, become the cold water of using with cool equipment and deliver to carbon third liquid cooler and semiwater gas cooler, and recycle, realized the production of low temperature process recirculated water.Cold-producing medium steam after the evaporation enters absorber, and the intermediate solution that is being sprayed absorbs, and becomes weak solution again, and the heat of solution of emitting in the absorption process is then taken away by the cooling water that flows in the absorber tube, and cooling water is cooled by cooling tower and recycles.
Claims (2)
1. device that utilizes urea waste heat production water at low temperature, it is characterized in that, comprise lithium bromide absorption chiller system (1), urea plant (2), use cool equipment (3) and cooling tower (4), describedly be connected by the evaporimeter of pipeline with lithium bromide absorption chiller system (1) with cool equipment (3), described urea plant (2) is connected by the generator of pipeline with lithium bromide absorption chiller system (1), and described cooling tower (4) links to each other with condenser by the absorber of pipeline with lithium bromide absorption chiller system (1).
2. according to the described device of claim 1, it is characterized in that, describedly comprise carbon third liquid cooler and semiwater gas cooler with cool equipment (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206994252U CN203083196U (en) | 2012-12-18 | 2012-12-18 | Device for producing low-temperature water by means of urea waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206994252U CN203083196U (en) | 2012-12-18 | 2012-12-18 | Device for producing low-temperature water by means of urea waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203083196U true CN203083196U (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206994252U Expired - Fee Related CN203083196U (en) | 2012-12-18 | 2012-12-18 | Device for producing low-temperature water by means of urea waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203083196U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697620A (en) * | 2013-12-25 | 2014-04-02 | 山西兰花科技创业股份有限公司 | Waste heat refrigeration method and device of urea high pressure temperature regulation water |
| CN104085900A (en) * | 2014-06-23 | 2014-10-08 | 山东晋煤明水化工集团有限公司 | Method for cooling synthetic ammonia by using urea work section high-pressure temperature-regulation water waste heat |
-
2012
- 2012-12-18 CN CN2012206994252U patent/CN203083196U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697620A (en) * | 2013-12-25 | 2014-04-02 | 山西兰花科技创业股份有限公司 | Waste heat refrigeration method and device of urea high pressure temperature regulation water |
| CN104085900A (en) * | 2014-06-23 | 2014-10-08 | 山东晋煤明水化工集团有限公司 | Method for cooling synthetic ammonia by using urea work section high-pressure temperature-regulation water waste heat |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130724 Termination date: 20131218 |