CN101067538A - Steam condensed water waste heat utilizing method and equipment - Google Patents
Steam condensed water waste heat utilizing method and equipment Download PDFInfo
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- CN101067538A CN101067538A CNA2007100115575A CN200710011557A CN101067538A CN 101067538 A CN101067538 A CN 101067538A CN A2007100115575 A CNA2007100115575 A CN A2007100115575A CN 200710011557 A CN200710011557 A CN 200710011557A CN 101067538 A CN101067538 A CN 101067538A
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The invention discloses a method of using the remaining heat of steam condensate, especially relating to a method of using the remaining heat of the steam condensate in aluminum oxide production. And the invention applies a combination of water sealed tank, self-evaporator and indirect heater and other devices, to be able to continuously, automatically, safely and stably make the steam condensate self-evaporate to produce secondary steam for use, so as to make full use of the remaining heat of the condensed water, thus achieving the purpose of saving energy, reducing wastage and raising economic benefits.
Description
Technical field
The present invention relates to a kind of method and apparatus that utilizes of steam condensed water waste heat, relate in particular to the method and apparatus that utilizes of steam condensed water waste heat in a kind of alumina producing.
Background technology
The heat that needs in the existing alumina producer production to make full use of steam adopts the direct-fired method of steam to give in the flow process and brings a large amount of water into to cut down the consumption of energy, and is unfavorable for producing the main steam indirect that adopts in the therefore existing alumina producing.Because the heating steam temperature is generally all than higher, condensed water can utilize by spontaneous evaporation generation indirect steam once more after the heat exchange.Existing condensed water afterheat utilization technology is brought steam when preventing that condensed water from entering flash-pot into, on the pipeline before advancing flash-pot drain valve is installed, but because indirect heater can leak material after being worn, sometimes have some slips in the condensed water, cause drain valve to stop up like this or damage, reduce operation rate, influence ordinary production, therefore how can make full use of the condensed water waste heat, can guarantee that again the whole process of utilizing is continuous, automatically, safe and stable operation is to cut down the consumption of energy in the alumina producing, energy savings, improve running rate, important measures of increasing economic efficiency.
Summary of the invention
The present invention is exactly the method and apparatus that utilizes that a kind of steam condensed water waste heat is provided in order to solve the problems of the technologies described above, purpose is to make steam condensate (SC) continuously, repeatedly spontaneous evaporation produces indirect steam and utilizes, guarantee to make full use of the condensed water waste heat, guarantee whole utilize process continuously, automatically, safe and stable operation, thereby cut down the consumption of energy, energy savings, increase economic efficiency.
For reaching above-mentioned purpose, the present invention is achieved in that a kind of method of utilizing of steam condensed water waste heat, being heated material is flowed out later by each indirect heater warp, steam enters indirect heater will be heated the material heating, the condensed water that is come out by the afterbody indirect heater produces indirect steam through flash-pot with its spontaneous evaporation, indirect steam enters the upper level indirect heater, and the condensed water after the heat exchange enters the next stage flash-pot, and the like.
The described material that is heated enters from first order indirect heater, flows out from the afterbody indirect heater.
It is to enter from the afterbody indirect heater earlier that described steam enters indirect heater.
The condensed water that described afterbody indirect heater flows out is collected by water sealed tank, and condensed water is again from compressing into into flash-pot then.
The condensed water liquid level is passed through the chain control of fluid level control device with the electric control valve of control open degree in the described water sealed tank.
The condensed water of the flash-pot that is connected with first order indirect heater is seen off by delivery pump.
The steam (vapor) outlet of the every grade of flash-pot uniform temp of can connecting, the steam of uniform pressure enters indirect heater together.
Described condensed water comprises live steam condensed water and exhaust steam condensed water.
A kind of steam condensed water waste heat utilize equipment, its structure is as follows: connect by being heated material conveying pipe between each indirect heater, every interstation connects heater and is connected with one or more flash-pot with the condensed water conveyance conduit by steam conveying pipe.
The afterbody indirect heater is connected with water sealed tank in the described indirect heater, links to each other by aqueduct between water sealed tank and the adjacent flash-pot.
Described water sealed tank is connected with the electric control valve and the liquid level detection device of control open degree with flash-pot, and liquid level detection device is connected with fluid level control device.
On the steam conveying pipe of described water sealed tank safety valve is installed.
On the steam conveying pipe of described flash-pot safety valve is installed.
The lower end of the described flash-pot that is connected with first order indirect heater is provided with aqueduct, and aqueduct is connected with delivery pump.
Advantage of the present invention and effect are as follows:
The present invention make whole condensed water UTILIZATION OF VESIDUAL HEAT IN process can be continuously, automatically, safety, stable operation, make full use of the condensed water waste heat, reach cut down the consumption of energy, energy savings and the purpose of increasing economic efficiency, can raise labour productivity again and the whole factory automation level.
Description of drawings
Fig. 1 be steam condensed water waste heat of the present invention utilize the device structure schematic diagram.
In the accompanying drawing: 1, be heated material; 2, steam; 3, condensed water; 4, first order indirect heater; 5, water sealed tank; 6, flash-pot; 7, electric control valve; 8, liquid level detection device; 9, safety valve; 10, delivery pump; 11, afterbody indirect heater.
The specific embodiment
Below inventive embodiment is described in detail in conjunction with the accompanying drawings, but protection scope of the present invention is not limit by embodiment.
Process flow process of the present invention is as follows:
Being heated material 1 enters from first order indirect heater 4, flow out from afterbody indirect heater 11, steam 2 enters from afterbody indirect heater 11, become condensed water 3 after the heat exchange, condensed water 3 enters water sealed tank 5, and condensed water 3 liquid levels are chain by fluid level control device 8 with the electric control valve 7 of control open degree in the water sealed tank 5; Condensed water 3 enters flash-pot 6 spontaneous evaporations adjacent with water sealed tank 5 and produces indirect steam 2; From then on the indirect steam 2 that comes out of flash-pot 6 enters the upper level indirect heater, and condensed water 3 enters the next stage flash-pot after the heat exchange, and the like.The quantity of the flash-pot of series connection determines that according to technological requirement the condensed water of the flash-pot that links to each other with first order indirect heater 4 is seen off by delivery pump 10.On the steam conveying pipe on water sealed tank 5 and the every grade of flash-pot, safety valve is installed, is guaranteed whole technical process safe operation.At the steam (vapor) outlet of the every grade of flash-pot uniform temp of can connecting, the steam of uniform pressure enters indirect heater together.Above-mentioned condensed water comprises live steam condensed water and exhaust steam condensed water.
The present device structure is as follows: be connected in series by being heated material conveying pipe between each indirect heater, every interstation connects heater 4 and is connected with one or more flash-pot 6 with the condensed water conveyance conduit by steam conveying pipe, wherein afterbody indirect heater 11 is connected with water sealed tank 5, links to each other by aqueduct between water sealed tank 5 and the adjacent flash-pot; Each flash-pot is connected with the electric control valve 7 and the liquid level detection device 8 of water sealed tank 5 with the control open degree, and liquid level detection device 8 is connected with fluid level control device.Safety valve 9 is installed on the steam conveying pipe of water sealed tank; Safety valve also is installed on the steam conveying pipe of flash-pot 6.The lower end of the flash-pot that is connected with first order indirect heater is provided with aqueduct, and aqueduct is connected with delivery pump 10.
Claims (14)
1, a kind of steam condensed water waste heat utilizes method, it is characterized in that being heated material is flowed out later by each indirect heater warp, steam enters indirect heater will be heated the material heating, the condensed water that is come out by the afterbody indirect heater produces indirect steam through flash-pot with its spontaneous evaporation, indirect steam enters the upper level indirect heater, condensed water after the heat exchange enters the next stage flash-pot, and the like.
2, steam condensed water waste heat according to claim 1 utilize method, it is characterized in that the described material that is heated enters from first order indirect heater, flows out from the afterbody indirect heater.
3, steam condensed water waste heat according to claim 1 utilize method, it is characterized in that it is to enter from the afterbody indirect heater earlier that described steam enters indirect heater.
4, steam condensed water waste heat according to claim 1 utilize method, it is characterized in that the condensed water that described afterbody indirect heater flows out collected by water sealed tank, condensed water is again from compressing into into flash-pot then.
5, steam condensed water waste heat according to claim 4 utilize method, the electric control valve that it is characterized in that condensed water liquid level and control open degree in the described water sealed tank is by the chain control of fluid level control device.
6, steam condensed water waste heat according to claim 1 utilize method, it is characterized in that the condensed water of the flash-pot that is connected with first order indirect heater is seen off by delivery pump.
7, steam condensed water waste heat according to claim 1 utilize method, it is characterized in that the steam (vapor) outlet series connection uniform temp of every grade of flash-pot, the steam of uniform pressure enters indirect heater together.
8, steam condensed water waste heat according to claim 1 utilize method, it is characterized in that described condensed water comprises live steam condensed water and exhaust steam condensed water.
9, a kind of steam condensed water waste heat utilizes equipment, it is characterized in that structure is as follows: connect by being heated material conveying pipe between each indirect heater, every interstation connects heater and is connected with one or more flash-pot with the condensed water conveyance conduit by steam conveying pipe.
10, steam condensed water waste heat according to claim 9 utilize equipment, it is characterized in that the afterbody indirect heater is connected with water sealed tank in the described indirect heater, link to each other by aqueduct between water sealed tank and the adjacent flash-pot.
11, steam condensed water waste heat according to claim 10 utilize equipment, it is characterized in that described water sealed tank is connected with the electric control valve and the liquid level detection device of control open degree, liquid level detection device is connected with fluid level control device.
12, steam condensed water waste heat according to claim 10 utilize equipment, it is characterized in that on the steam conveying pipe of described water sealed tank safety valve being installed.
13, steam condensed water waste heat according to claim 9 utilize equipment, it is characterized in that on the steam conveying pipe of described flash-pot safety valve being installed.
14, steam condensed water waste heat according to claim 9 utilize equipment, it is characterized in that the lower end of the described flash-pot that is connected with first order indirect heater is provided with aqueduct, aqueduct is connected with delivery pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100115575A CN101067538A (en) | 2007-06-05 | 2007-06-05 | Steam condensed water waste heat utilizing method and equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100115575A CN101067538A (en) | 2007-06-05 | 2007-06-05 | Steam condensed water waste heat utilizing method and equipment |
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| Publication Number | Publication Date |
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| CN101067538A true CN101067538A (en) | 2007-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2007100115575A Pending CN101067538A (en) | 2007-06-05 | 2007-06-05 | Steam condensed water waste heat utilizing method and equipment |
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| CN (1) | CN101067538A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485948B (en) * | 2008-01-17 | 2010-11-10 | 中国铝业股份有限公司 | Method for treating fluidizing reactor flue gas in production of aluminum oxide |
| CN101659450B (en) * | 2008-08-28 | 2011-05-11 | 中铝国际技术发展有限公司 | Process for combined spontaneous evaporation of new steam condensate and secondary steam condensate |
| CN101575107B (en) * | 2008-05-08 | 2011-06-29 | 沈阳铝镁设计研究院有限公司 | Respective self-evaporation technology of new steam condensate and secondary steam condensate |
| CN101670183B (en) * | 2009-10-13 | 2012-02-08 | 杭州锦江集团有限公司 | Waste heat recovering method and device of evaporation condensed water |
| CN102563608A (en) * | 2010-12-31 | 2012-07-11 | 贵州中烟工业有限责任公司 | Secondary steam-recycling method for condensate collector |
| CN102583461A (en) * | 2011-12-22 | 2012-07-18 | 东北大学设计研究院（有限公司） | Device and method for preheating by utilizing steam condensate water for aluminum oxide high-pressure digestion process |
| CN104422301B (en) * | 2013-09-10 | 2016-09-14 | 贵阳铝镁设计研究院有限公司 | The device of condensed water in a kind of heat transmission equipment discharged with steam as thermal source |
| CN110285686A (en) * | 2019-07-24 | 2019-09-27 | 重庆众誉材工科技有限公司 | Steam condensate collecting tank provided with steam discharge water seal device |
-
2007
- 2007-06-05 CN CNA2007100115575A patent/CN101067538A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101485948B (en) * | 2008-01-17 | 2010-11-10 | 中国铝业股份有限公司 | Method for treating fluidizing reactor flue gas in production of aluminum oxide |
| CN101575107B (en) * | 2008-05-08 | 2011-06-29 | 沈阳铝镁设计研究院有限公司 | Respective self-evaporation technology of new steam condensate and secondary steam condensate |
| CN101659450B (en) * | 2008-08-28 | 2011-05-11 | 中铝国际技术发展有限公司 | Process for combined spontaneous evaporation of new steam condensate and secondary steam condensate |
| CN101670183B (en) * | 2009-10-13 | 2012-02-08 | 杭州锦江集团有限公司 | Waste heat recovering method and device of evaporation condensed water |
| CN102563608A (en) * | 2010-12-31 | 2012-07-11 | 贵州中烟工业有限责任公司 | Secondary steam-recycling method for condensate collector |
| CN102563608B (en) * | 2010-12-31 | 2015-05-13 | 贵州中烟工业有限责任公司 | Secondary steam-recycling method for condensate collector |
| CN102583461A (en) * | 2011-12-22 | 2012-07-18 | 东北大学设计研究院（有限公司） | Device and method for preheating by utilizing steam condensate water for aluminum oxide high-pressure digestion process |
| CN102583461B (en) * | 2011-12-22 | 2014-03-05 | 东北大学设计研究院（有限公司） | Device and method for preheating by utilizing steam condensate water for aluminum oxide high-pressure digestion process |
| CN104422301B (en) * | 2013-09-10 | 2016-09-14 | 贵阳铝镁设计研究院有限公司 | The device of condensed water in a kind of heat transmission equipment discharged with steam as thermal source |
| CN110285686A (en) * | 2019-07-24 | 2019-09-27 | 重庆众誉材工科技有限公司 | Steam condensate collecting tank provided with steam discharge water seal device |
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