CN202745954U - Equipment using continuous casting secondary cooling zone waste heat to generate electricity based on organic working medium Rankine cycle - Google Patents
Equipment using continuous casting secondary cooling zone waste heat to generate electricity based on organic working medium Rankine cycle Download PDFInfo
- Publication number
- CN202745954U CN202745954U CN2012204303067U CN201220430306U CN202745954U CN 202745954 U CN202745954 U CN 202745954U CN 2012204303067 U CN2012204303067 U CN 2012204303067U CN 201220430306 U CN201220430306 U CN 201220430306U CN 202745954 U CN202745954 U CN 202745954U
- Authority
- CN
- China
- Prior art keywords
- continuous casting
- working medium
- heat exchanger
- waste heat
- equipment
- 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 - Lifetime
Links
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
- 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
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model discloses equipment using continuous casting secondary cooling zone waste heat to generate electricity based on an organic working medium Rankine cycle, which comprises a waste heat recovery system, a heat exchanger (6) and an organic working medium Rankine cycle power generation system connected with the heat exchanger (6). The waste heat recovery system comprises a moderate temperature salt bathing pool (3) and a moderate temperature salt fusing furnace (5) connected with the moderate temperature salt bathing pool (3), wherein the moderate temperature salt bathing pool (3) is internally provided with a roller (2), and connected with the heat exchanger (6). Fused salt servers as a heat exchange medium in the waste heat recovery system. With the adoption of the system, the equipment using the continuous casting two-cold-section waste heat to generate the electricity based on the organic working medium Rankine cycle, which is high in waste heat recovery rate and has remarkable economic and social benefits, is obtained.
Description
Technical field
The utility model relates to the device field that utilizes waste heat, relates in particular to a kind of equipment that utilizes continuous casting two cold section waste heat to carry out the organic rankie cycle generating.
Background technique
In continuous casting two cold section operation, liquid molten steel forms duricrust through preliminary cooling in appearance, and temperature drops to about 1300 ℃, and then further cooling is until slab solidifies water spray fully, and this moment, temperature was about 900 ℃.Temperature by 1300 ℃ to 900 ℃ process in, the cooling of steel billet discharges a large amount of heats, average about 180kJ/kg steel, according to the Time Calculation of slab pulling rate (with 220mm thick * 1500mm is wide, 1.0 m/mins of pulling rates are example), thermal power reaches 7890KW.If so huge heat is for the production of steam or generating, then economic benefit is very considerable.And at present, only the heat of low-temperature zone is recycled, and still belong to blank for the recovery technology of this high temperature section waste heat.
The patent of invention US4351633 of the U.S. discloses a kind of employing confined space cooling chamber, the technology take air or water as medium and slab direct heat transfer.Its temperature that relates to is 900 ℃ to 150 ℃-250 ℃ low temperature range, the heat generation Steam Actuation generator that reclaims.But for the waste heat between 1300 ℃ to 900 ℃, this patent does not relate to.Wherein, heat mainly is traditional radiation heat transfer or gas-solid heat exchange.Adopting water is that the grade of medium recovery waste heat is lower, and the steam of formation can only be used for heated feed water, and then the gas-solid heat exchange coefficient is high not as the liquid-solid coefficient of heat transfer to adopt air dielectric.So there is certain defect in these class methods, still remain to be improved.
Summary of the invention
The technical problems to be solved in the utility model is for overcoming the deficiencies such as existing waste heat recovery generating system is low at utilization rate of waste heat, heat transfer effect is not good, and existing waste heat recovery generating system is improved design, obtain a kind ofly steel billet heat energy to be converted into the equipment based on the continuous casting two cold section cogeneration of organic rankie cycle that electric energy, heat recovery rate are high, have significant economic benefit and social benefit.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is, provide a kind of equipment of the continuous casting two cold section cogeneration based on organic rankie cycle, the machine working medium Rankine cycle power generation system that comprises residual neat recovering system, heat exchanger and be connected with this heat exchanger.Described residual neat recovering system adopts fuse salt as heat transferring medium, and it comprises that inside is provided with the middle thermohaline bathing pool and the middle temperature molten salt stove that is connected with thermohaline bathing pool in this of Kun axle, and thermohaline bathing pool is connected with heat exchanger in this.
The first preferred version of the present utility model is that fuse salt is selected zinc chloride.
The second preferred version of the present utility model is, middle thermohaline bathing pool is connected with collecting tank, and collecting tank is connected with middle temperature molten salt stove.
The 3rd preferred version of the present utility model is that the organic rankie cycle power generation system comprises the decompressor that links to each other with heat exchanger, and the generator and the condenser that link to each other with this decompressor simultaneously.Wherein, condenser links to each other with this heat exchanger by working medium pump.
The 4th preferred version of the present utility model is to be provided with fluid storage tank between condenser and the working medium pump.
Technical advantage of the present utility model is: owing to adopt the slab of fuse salt and secondary cooling zone to carry out liquid-solid forced heat-exchanging, heat exchange efficiency is higher than traditional radiation heat transfer and gas-solid heat exchange.Because the exchange capability of heat of fuse salt surpasses the heat dissipating capacity of slab, can guarantee that slab fully cools off.Wherein, preferentially select zinc chloride that the temperature of fusing point and boiling point differs greatly as fuse salt, its wider temperature using scope not only can satisfy the high temperature heat absorption and also can satisfy in the needs of warm heat release.In addition, zinc chloride is cheap, stable in properties, and its Security is better than other allied substances, thereby has reduced the heat exchange cost, and is easy to utilize.Because a large amount of waste heats of the high temperature section that reclaims are converted into electric energy by the organic rankie cycle power generation system, compare the mode for the production of steam again, reclaimed to greatest extent waste heat, created larger economic benefit.And adopt nontoxic, not flammable, non-corrosive environmental protection working medium R245fa as organic working medium in this process, because it has lower critical pressure 3.65Mpa, 154.01 ℃ of critical temperatures, molecular weight is large, be fit to heat recovery, reach the purpose that energy-conserving and environment-protective are produced.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is that the utility model is based on the structural representation of the apparatus embodiments of the continuous casting two cold section cogeneration of organic rankie cycle.
Embodiment
By the structural representation of the apparatus embodiments of continuous casting two cold section cogeneration based on organic rankie cycle shown in Figure 1 as can be known, comprise residual neat recovering system, heat exchanger 6 and the organic rankie cycle power generation system that is connected with this heat exchanger 6.Wherein, residual neat recovering system comprises that inside is provided with the middle thermohaline bathing pool 3 and the middle temperature molten salt stove 5 that is connected with thermohaline bathing pool 3 in this of Kun axle 2, and thermohaline bathing pool 3 is connected with heat exchanger 6 in this.This residual neat recovering system adopts fuse salt as heat transferring medium, and preferred zinc chloride is heat transferring medium.In addition, middle thermohaline bathing pool 3 is connected with collecting tank 8, and this collecting tank 8 is connected with middle temperature molten salt stove 5.Heat exchanger 6 also is connected with power generation system, the organic rankie cycle power generation system comprises the decompressor 11 that links to each other with heat exchanger 6, and the generator 12 and the condenser 13 that link to each other with this decompressor 11 simultaneously, this condenser 13 links to each other with heat exchanger 6 by working medium pump 10.And can between condenser 13 and working medium pump 10, be provided with fluid storage tank 9.
During opening device, at first by middle temperature molten salt stove 5 fuse salt is melted, this fuse salt can be selected zinc chloride.After zinc chloride melted, valve 142 was opened, and valve 143 is closed, and the zinc chloride of molten state can be injected in the middle thermohaline bathing pool 3.Then, start continuous casting process, zinc chloride is just to reclaiming by the waste heat of Kun axle 2 by the strand 1 of middle thermohaline bathing pool 3 inside.When the temperature in the central thermohaline bathing pool 3 reaches 630 ℃ of left and right sides, temperature molten salt pump 4, heat exchanger 6, working medium pump 10, decompressor 11, generator 12, condenser 13 in the startup.When middle temperature molten salt pump 4 is introduced heat exchanger 6 with the liquid zinc chloride in the middle thermohaline bathing pool 3, Open valve 145.Working medium pump 10 is introduced the organic working medium in the fluid storage tank 9 among the heat exchanger 6, and this organic working medium is selected R245fa.In this heat exchanger 6, organic working medium is carried out sufficient heat exchange with the zinc chloride that has reclaimed waste heat.At last, Open valve 141, through the zinc chloride thermohaline bathing pool 3 from heat exchanger 6 is back to after the heat exchange, the organic working medium that has absorbed waste heat energy then enters decompressor 11 heat energy is converted into mechanical energy, drives generator 12 generatings.Organic working medium after the acting reassembles in fluid storage tank 9 after condenser 13 condensations, restarts lower whorl organic working medium Lang Ken through working medium pump again and loops generating.
When continuous casting process stopped to produce, valve 141 and valve 142 were closed, and valve 143 is opened.The temperature of the outlet end of control heat exchanger 6 is higher than the fusing point of fuse salt, and then zinc chloride is liquid.Thereby guaranteed from heat exchanger 6 is back in the temperature molten salt stove 5, to be convenient to store or the heating recycling through the zinc chloride after the heat exchange.In addition, leak for the zinc chloride liquation that causes in the slab course of conveying, collect with collecting tank 8, then Open valve 144 returns the leakage fluid foldback to middle temperature molten salt stove 5 continuation utilizations with returning liquid pump 7, has saved the cost of heat recovery.
The utility model is not limited to the above-described embodiment and examples, in the ken that the art personnel possess, can also make a variety of changes without departing from the inventive concept of the premise.
Claims (5)
1. the equipment based on the continuous casting two cold section cogeneration of organic rankie cycle is characterized in that: comprise residual neat recovering system, heat exchanger (6) and the organic rankie cycle power generation system that is connected with this heat exchanger (6); Described residual neat recovering system comprises that inside is provided with the middle thermohaline bathing pool (3) and the middle temperature molten salt stove (5) that is connected with thermohaline bathing pool (3) in this of Kun axle (2); Should be connected with described heat exchanger (6) by middle thermohaline bathing pool (3); It is heat transferring medium that described residual neat recovering system adopts fuse salt.
2. according to the equipment of the described continuous casting two cold section cogeneration based on organic rankie cycle of claim 1, it is characterized in that: described fuse salt is selected zinc chloride.
3. according to the equipment of the described continuous casting two cold section cogeneration based on organic rankie cycle of claim 1, it is characterized in that: described middle thermohaline bathing pool (3) is connected with collecting tank (8), and this collecting tank (8) is connected with described middle temperature molten salt stove (5).
4. according to the equipment of the described continuous casting two cold section cogeneration based on organic rankie cycle of claim 1, it is characterized in that: described organic rankie cycle power generation system comprises the decompressor (11) that links to each other with described heat exchanger (6), and the generator (12) and the condenser (13) that link to each other with this decompressor (11) simultaneously, this condenser (13) links to each other with this heat exchanger (6) by working medium pump (10).
5. according to the equipment of the described continuous casting two cold section cogeneration based on organic rankie cycle of claim 4, it is characterized in that: be provided with fluid storage tank (9) between described condenser (13) and the working medium pump (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204303067U CN202745954U (en) | 2012-08-28 | 2012-08-28 | Equipment using continuous casting secondary cooling zone waste heat to generate electricity based on organic working medium Rankine cycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204303067U CN202745954U (en) | 2012-08-28 | 2012-08-28 | Equipment using continuous casting secondary cooling zone waste heat to generate electricity based on organic working medium Rankine cycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202745954U true CN202745954U (en) | 2013-02-20 |
Family
ID=47705367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204303067U Expired - Lifetime CN202745954U (en) | 2012-08-28 | 2012-08-28 | Equipment using continuous casting secondary cooling zone waste heat to generate electricity based on organic working medium Rankine cycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202745954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808668A (en) * | 2012-08-28 | 2012-12-05 | 无锡市东方环境工程设计研究所有限公司 | Continuous-casting two-cooling-section waste heat power generation method and equipment based on organic working medium Rankine cycle |
-
2012
- 2012-08-28 CN CN2012204303067U patent/CN202745954U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808668A (en) * | 2012-08-28 | 2012-12-05 | 无锡市东方环境工程设计研究所有限公司 | Continuous-casting two-cooling-section waste heat power generation method and equipment based on organic working medium Rankine cycle |
| CN102808668B (en) * | 2012-08-28 | 2015-06-17 | 无锡市东方环境工程设计研究所有限公司 | Continuous-casting two-cooling-section waste heat power generation method and equipment based on organic working medium Rankine cycle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104832232B (en) | A kind of step heat exchange organic Rankine cycle power generation system and electricity-generating method thereof | |
| CN107035447A (en) | Compress supercritical carbon dioxide accumulation of energy hold over system and its method of work | |
| CN103868391B (en) | A kind of phase change energy storage apparatus in conjunction with plate type heat exchanger | |
| CN202869079U (en) | Condensate water heating device utilizing power plant circulating cooling water waste heat recovered by jet-type heat pump | |
| CN106968954B (en) | A kind of residual neat recovering system of air compressor machine | |
| CN107100807A (en) | Direct contact heat transfer tower type solar energy thermal power generation station system and its method of work | |
| CN104864613A (en) | Heat storage device | |
| CN107246289A (en) | The device and its method of work of peak-load regulation are realized in a kind of utilization fuse salt accumulation of heat | |
| CN204509191U (en) | Take high-temperature molten salt as the new Type Coke Oven ascending tube crude-gas residual neat recovering system of medium | |
| CN104236161B (en) | A kind of waste heat recycling system | |
| CN202745954U (en) | Equipment using continuous casting secondary cooling zone waste heat to generate electricity based on organic working medium Rankine cycle | |
| CN201390755Y (en) | Surplus heat recovery system of blast furnace slag washing water | |
| CN202779668U (en) | Waste heat recovery device of continuous casting secondary cooling section | |
| CN102748252A (en) | Molten salt thermal system for secondary reflection tower-type solar photothermal power station | |
| CN102808668B (en) | Continuous-casting two-cooling-section waste heat power generation method and equipment based on organic working medium Rankine cycle | |
| CN204251571U (en) | Coke-oven gas cooling and waste heat recovery device | |
| CN203635198U (en) | Ethoxylation reaction heat recycling device | |
| CN201412120Y (en) | Solar power warming system for oil field wellhead | |
| CN103060498A (en) | Blast furnace cinder flushing water residual heat power generation system | |
| CN204386676U (en) | A kind of associating residual neat recovering system | |
| CN202645893U (en) | Fused salt hot working system of secondary reflective tower type solar photo-thermal power station | |
| CN102773441B (en) | The waste heat recovery device of continuous casting two cold section | |
| CN209431693U (en) | A kind of Dish solar thermal power system | |
| CN208486987U (en) | A kind of molten salt energy-storage electricity generation system based on solar energy heating | |
| CN202970814U (en) | High-temperature steam waste heat electricity generation energy-saving system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |
|
| CX01 | Expiry of patent term |