CN202470522U - Carbon dioxide humidifying low temperature waste heat recycling device - Google Patents
Carbon dioxide humidifying low temperature waste heat recycling device Download PDFInfo
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- CN202470522U CN202470522U CN2012200467566U CN201220046756U CN202470522U CN 202470522 U CN202470522 U CN 202470522U CN 2012200467566 U CN2012200467566 U CN 2012200467566U CN 201220046756 U CN201220046756 U CN 201220046756U CN 202470522 U CN202470522 U CN 202470522U
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- carbon dioxide
- low temperature
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- humidifying
- waste heat
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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
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model relates to a carbon dioxide humidifying low temperature waste heat recycling device and belongs to the technical field of production comprehensive utilization of a chemical enterprise. The carbon dioxide humidifying low temperature waste heat recycling device comprises a humidifying tower (1), a heat recovery tower (2), a low temperature waste heat gas medium (5), a carbon dioxide gas source (6) and a carbon dioxide and water vapor mixed gas output end (7). A lower portion of the heat recovery tower is connected with the low temperature waste heat gas medium, an upper portion of the heat recovery tower is connected with cryogenic backwater of the bottom of the humidifying tower, the bottom of the heat recovery tower is connected with the upper portion of the humidifying tower, the carbon dioxide gas source is connected with the lower portion of the humidifying tower, and the top of the humidifying tower is provided with the carbon dioxide and water vapor mixed gas output end (7). The carbon dioxide humidifying low temperature waste heat recycling device converts low-grade low temperature waste heat into high-grade water vapor; with less novel equipment required, the carbon dioxide humidifying low temperature waste heat recycling device has strong practicability and is easy to carried out and low in investment and cost; and the carbon dioxide humidifying low temperature waste heat recycling device improves recovery grade and recovery efficiency of the low temperature waste heat, and each ton of carbon dioxide can recycle 300-700 kilograms of vapor and reduce water consumption by 15-40 tons.
Description
Technical field
The utility model relates to the device that a kind of carbon dioxide humidification is recycled low temperature exhaust heat, belongs to Production in Chemical Plant comprehensive utilization technique field.
Background technology
In the commercial production field; The heat of medium below 150 ℃ is referred to as low temperature exhaust heat, has a large amount of low temperature exhaust heats at all types of industries production field, the overwhelming majority is a gas medium; Because of the dew point corrosion problem, there is very big technical barrier at present in the recovery of this part low temperature exhaust heat; Like 110-150 ℃ stove, kiln emptying flue gas, all kinds of process gas below 150 ℃, 50-90 ℃ condensing steam turbine generator exhaust steam etc.; This part low temperature surplus accounts for the 8-15% of total energy consumption, and this part heat overwhelming majority has been discharged in the atmosphere at present, has caused the significant wastage of the energy; This part heat part directly has been discharged in the atmosphere, like 110-150 ℃ stove, kiln emptying flue gas; A part need take the way of air cooling or cooling water temperature that medium is reduced to needed temperature; Like condensing steam turbine generator exhaust steam of all kinds of process gas below 150 ℃, 50-90 ℃ etc.; Air cooled method is directly passed to air with the heat of medium and has been discharged in the atmosphere; Also to consume a large amount of dynamic powers simultaneously; The way of cooling water temperature need consume a large amount of cooling waters, again through cooling tower adopt the air cooling reduce the temperature of cooling water indirect with transfer of heat in atmosphere.
At present; Background technology has seldom, and a part adopts heat pump techniques to reclaim low temperature exhaust heat; But the heat grade that reclaims is lower, can only be applied to heating and satisfy the demand of lower temperature heat, can't promote the grade of heat recovery; And then can't the heat that reclaim be turned back to the continuation use of commercial production field in a large number, investment simultaneously is big, the heat recovery cost is also higher.
The utility model content
The utility model purpose provides the device that a kind of carbon dioxide humidification is recycled low temperature exhaust heat; With the aqueous water is media; Through aqueous water with the transfer of heat of low temperature exhaust heat in carbon dioxide; Comprise part sensible heat and latent heat, improve the temperature and the moisture content of carbon dioxide, some impurity in the low temperature exhaust heat gas medium are that media is transferred in the mist of carbon dioxide and water vapour through water also simultaneously; Mist such as carbon dioxide and water vapour uses as the gasifying agent of gas generator or as other heating thermals source, realizes the recycling of low temperature exhaust heat, and energy-conservation, consumption reduction, environmental protection, synergy solve the problems referred to above that exist in the background technology.
The technical scheme of the utility model is:
A kind of carbon dioxide humidification is recycled the device of low temperature exhaust heat; Comprise conditioning Tower, heat recovery tower, low temperature exhaust heat medium and carbon dioxide air source; The bottom of heat recovery tower connects the low temperature exhaust heat gas medium, and the top of heat recovery tower connects the low temperature backwater of conditioning Tower bottom, and the bottom of heat recovery tower connects the top of conditioning Tower; Carbon dioxide air source connects the bottom of conditioning Tower, and the top of conditioning Tower is the mist output of carbon dioxide and water vapour.
The lower water counter current contacting of temperature that the low temperature exhaust heat gas medium comes with conditioning Tower in heat recovery tower is transferred to part sensible heat and latent heat in the aqueous water through the mass-and heat-transfer effect, improves the temperature of aqueous water; Simultaneously, impurity soluble in water is also transferred in the water thereupon in the low temperature exhaust heat gas medium, and the temperature of low temperature exhaust heat gas medium reduces the back and gets into subsequent processing, and the hot water after the temperature raising gets into conditioning Tower; Aqueous water counter current contacting after the temperature raising that carbon dioxide comes with heat recovery tower in conditioning Tower; Directly transfer to the heat in the water in the carbon dioxide through the mass-and heat-transfer effect; Part water is transferred in the carbon dioxide with the form of water vapour; Moisture content in the carbon dioxide increases substantially, and the temperature of carbon dioxide and water vapor mixture body also is improved, and partial impurities is also transferred in the mist of carbon dioxide and water vapour thereupon in the water simultaneously; The gasifying agent that the carbon dioxide of conditioning Tower outlet and water vapor mixture body can be used as gas generator uses; Aqueous water after the cooling turns back to heat recovery tower and recycles.
The utility model also is provided with heat-exchanger pump, is arranged between heat recovery tower and the conditioning Tower, is used for the hot water pressurization, forces hot water circuit.
The utility model also can be used for the waste heat that recovered temperature is higher than 150 ℃.
The utility model can also not be provided with heat recovery tower; Through any-mode with low temperature exhaust heat be converted into temperature below 100 ℃ be higher than 100 ℃ hot water after, get in the conditioning Tower mist of producing carbon dioxide and water vapour with the carbon dioxide counter current contacting again.
The utility model good effect: at present, all there is the gas generator facility in the manufacturing enterprise of much discharging carbon dioxide, and gas generator all needs a large amount of steam to produce water-gas, semiwater gas or air mixture as gasifying agent; All be provided with water-gas, semiwater gas or air mixture cooling and cooling device; A lot of low temperature exhaust heats are also arranged, and existing gas generator system of the utility model utilization and process conditions, the existing low temperature exhaust heat of utilization are set up facilities such as heat recovery tower and conditioning Tower; With the low temperature exhaust heat indirect reformer is the raw material that high-grade water vapour is used for gas generator; When realizing the carbon dioxide recycle, realized the recovery and efficient utilization of low temperature exhaust heat, newly-increased equipment is less, has very strong practicality and exploitativeness; Small investment, cost are low; Compare with background technology, increase substantially the recovery grade and the organic efficiency of low temperature exhaust heat, the recyclable steam 300-700kg of carbon dioxide per ton, reduction cooling-water consumption 15-40t.
Description of drawings
Accompanying drawing 1 is the utility model embodiment one sketch map;
Accompanying drawing 2 is the utility model embodiment two sketch mapes;
Among the figure: carbon dioxide conditioning Tower 1, heat recovery tower 2, heat-exchanger pump 3, cooling tower 4, low temperature exhaust heat gas medium 5, carbon dioxide air source 6, carbon dioxide and water vapor mixture body output 7.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described further through embodiment.
Embodiment one, with reference to accompanying drawing 1
The device that a kind of carbon dioxide humidification is recycled low temperature exhaust heat is applied to synthesis ammonia system gas generator low temperature semiwater gas heat recovery; Manufacturing enterprise has the gas generator facility; The carbon dioxide that discharging is arranged, low temperature exhaust heat is 110-150 ℃ a semiwater gas, and has the cooling tower.The utility model comprises conditioning Tower 1, heat recovery tower 2, heat-exchanger pump 3, cooling tower 4; 110-150 ℃ semiwater gas is got into by the bottom of heat recovery tower 2, carries out heat and mass with 30-60 ℃ the water at low temperature counter current contacting of coming in top, and the semiwater gas after the cooling gets into the cooling tower through the top; The heat recovery tower bottom temp is elevated to 60-100 ℃ hot water through the heat-exchanger pump pressurization; Get into the top of carbon dioxide conditioning Tower; Carry out mass-and heat-transfer with temperature 10-40 ℃ the carbon dioxide counter current contacting of coming in the bottom; Carbon dioxide gas temperature behind the temperature raising humidification is 50-90 ℃, and vapour content increases 300-700kg in the carbon dioxide per ton, and the water that bottom temp is lower gets into heat recovery tower and recycles.The recyclable steam 300-700kg of carbon dioxide per ton gets into gas generator system and uses as gasifying agent, is equivalent to 110-150 ℃ of semiwater gas low temperature exhaust heat transformed the high-grade water vapour that uses for gas generator.Synthetic ammonia recycle amount of carbon dioxide per ton is by 0.5 ton of calculating; Ton many recovered steams of the ammonia amount 150-350kg that compares with background technology technology, semiwater gas cooling tower cooler water consumption drops to 40-60t by ton ammonia 60-70t, and cooling-water consumption reduces 15-30%; Thoroughly solved simultaneously the semiwater gas cooling tower recirculated water problem of rising; Reduce the outer discharge capacity of semiwater gas cooling circulating water, reduce cost of sewage disposal, ton ammonia conserve water resource 0.3-0.5t.Economic benefit of the utility model and social benefit be highly significant all.
Embodiment two, with reference to accompanying drawing 2.
Two of embodiment are provided with carbon dioxide conditioning Tower 1, and heat recovery tower is not set, and the employing alternate manner is converted into low temperature exhaust heat 60-100 ℃ hot water as carbon dioxide humidification hot water, and principle is identical with embodiment one.
Claims (3)
1. a carbon dioxide humidification is recycled the device of low temperature exhaust heat; It is characterized in that comprising conditioning Tower (1), heat recovery tower (2), low temperature exhaust heat gas medium (5) and carbon dioxide air source (6); The bottom of heat recovery tower connects the low temperature exhaust heat gas medium; The top of heat recovery tower connects the water at low temperature that the conditioning Tower bottom is come; The bottom of heat recovery tower connects the top of conditioning Tower, and carbon dioxide air source connects the bottom of conditioning Tower, and the top of conditioning Tower is the output (7) of carbon dioxide and water vapor mixture body.
2. recycle the device of low temperature exhaust heat according to the said a kind of carbon dioxide humidification of claim 1, it is characterized in that also being provided with heat-exchanger pump (3), be arranged between heat recovery tower and the conditioning Tower.
3. recycle the device of low temperature exhaust heat according to claim 1 or 2 said a kind of carbon dioxide humidifications, the top that it is characterized in that conditioning Tower is the output (7) of carbon dioxide and water vapor mixture body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200467566U CN202470522U (en) | 2012-02-14 | 2012-02-14 | Carbon dioxide humidifying low temperature waste heat recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200467566U CN202470522U (en) | 2012-02-14 | 2012-02-14 | Carbon dioxide humidifying low temperature waste heat recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202470522U true CN202470522U (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200467566U Expired - Lifetime CN202470522U (en) | 2012-02-14 | 2012-02-14 | Carbon dioxide humidifying low temperature waste heat recycling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN202470522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589181A (en) * | 2012-02-14 | 2012-07-18 | 河北凯跃化工集团有限公司 | Method and device for recycling low temperature exhaust heat through carbon dioxide humidifying |
-
2012
- 2012-02-14 CN CN2012200467566U patent/CN202470522U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589181A (en) * | 2012-02-14 | 2012-07-18 | 河北凯跃化工集团有限公司 | Method and device for recycling low temperature exhaust heat through carbon dioxide humidifying |
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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: 20121003 |