CN105822359A - Steam energy multi-stage utilization technology - Google Patents
Steam energy multi-stage utilization technology Download PDFInfo
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- CN105822359A CN105822359A CN201610336347.2A CN201610336347A CN105822359A CN 105822359 A CN105822359 A CN 105822359A CN 201610336347 A CN201610336347 A CN 201610336347A CN 105822359 A CN105822359 A CN 105822359A
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- heat
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D13/00—Combinations of two or more machines or engines
- F01D13/02—Working-fluid interconnection of machines or engines
Abstract
The invention relates to a steam energy multi-stage utilization technology. Kinetic energy and potential energy of high-pressure steam are released to drive a steam turbine to rotate to do work, and meanwhile, dead steam generated by an outlet of the steam turbine serves as a heat source of a bottom reboiler; high-temperature condensate water generated by the bottom reboiler is collected to a condensate water recycling tank in a unified manner, and the high-temperature condensate water is subject to heat exchange to be at the specified temperature through a heat exchange system and is conveyed to the low-temperature bottom reboiler with the low needed heat to serve as a tower bottom heat source to be used; medium-temperature condensate water generated in the process serves as heat tracing water feeding to enter all technologies to be subject to heat tracing, finally, generated low-quality hot water meets the air cooling water feeding requirement and replaces demineralized water to serve as evaporation type air cooling process water to be used, and the gradient utilization of high-pressure steam energy is achieved; and the steam energy multi-stage utilization technology is adopted, the maximum utilization efficiency of energy can be achieved, energy consumption of product machining is reduced, competitiveness of a product is improved, and meanwhile the environment is protected.
Description
Technical field
The present invention relates to petrochemical iy produced field, relate to a kind of steam energy Multi-class propagation technique.
Background technology
In chemical industry, steam is very big as the ratio of energy consumption accounting, generally determines unit consumption and the market competitiveness of product, but chemical plant is generally relatively low to the utilization rate of steam energy now, substantially increases cost.Prior art using high steam as the power source of steam turbine, change impeller by the pressure of high steam and rotate so that compressor work, but the exhaust steam ability grade that steam turbine outlet is discharged reduces, used the reboiler of column bottom temperature coupling as thermal source at the bottom of tower, carry out low-pressure steam energy regenerating, but the high-temperature condensation water produced can not make full use of, and has all drained into bright ditch, cause a large amount of waste and environmental protection pressure.So relatively low to the utilization rate of steam energy, it is not reaching to the purpose that energy is made full use of, has not only increased energy consumption and simultaneously but also polluted environment.
Summary of the invention
The problems that the technique utilized for existing steam energy exists, the present invention provides a kind of steam energy Multi-class propagation technique:
Drive steam turbine to rotate acting after the kinetic energy being had by high steam and potential energy release, steam turbine is exported the produced exhaust steam thermal source as bottom reboiler simultaneously；
Then the high-temperature condensation water that produced by bottom reboiler is unified to be collected in condensing hot air furnace tank, and this high-temperature condensation water is utilized as thermal source at the bottom of tower by heat-exchange system heat exchange to set point of temperature the low temperature bottom reboiler of delivering to institute's calorific requirement relatively low；
Each technique heat tracing is entered as water in heat tracing after middle temperature condensed water heat exchange produced in above process；
Meeting water requirement on air cooling after last produced low-quality hot water heat exchange, replacement demineralized water uses as the fresh water (FW) of evaporation type air cooling, has reached the cascade utilization to high steam energy；
Heat-exchange system of the present invention is plate fin heat-exchanging system or the one of coiled heat-exchange system.
Beneficial effects of the present invention: by the cascade utilization to steam energy, can be on the premise of not increase equipment, and maximize the use efficiency to energy, reduces the energy consumption of converted products, and the competitiveness adding product protects environment simultaneously, is embodied in:
(1) by high-temperature condensation water produced after steam heat-exchanging again with, by adjusting and heat-exchange system processes the tower less as thermic load or the thermal source of equipment.
(2) final unserviceable hot water is used by fresh water (FW) as evaporation type air cooling after heat exchange, instead of the consumption of demineralized water.
Accompanying drawing explanation
Fig. 1 is steam energy Multi-class propagation process flow diagram of the present invention.
Detailed description of the invention
Embodiment 1
Drive steam turbine to rotate acting after one steam energy Multi-class propagation technique, the kinetic energy being had by high steam and potential energy release, steam turbine is exported the produced exhaust steam thermal source as bottom reboiler simultaneously；
Then the high-temperature condensation water that produced by bottom reboiler is unified to be collected in condensing hot air furnace tank, and this high-temperature condensation water is utilized as thermal source at the bottom of tower to 70 degree and the low temperature bottom reboiler of delivering to institute's calorific requirement relatively low by heat-exchange system heat exchange.
Heat-exchange system described in the present embodiment is coiled heat-exchange system.
Embodiment 2
Drive steam turbine to rotate acting after one steam energy Multi-class propagation technique, the kinetic energy being had by high steam and potential energy release, steam turbine is exported the produced exhaust steam thermal source as bottom reboiler simultaneously；
Then the high-temperature condensation water unification produced by bottom reboiler is collected in condensing hot air furnace tank, this high-temperature condensation water is used as the fresh water (FW) of evaporation type air cooling as water replacement demineralized water on air cooling to 40 degree by heat-exchange system heat exchange, has reached the cascade utilization to high steam energy.Heat-exchange system described in the present embodiment is coiled heat-exchange system.Heat-exchange system described in the present embodiment is coiled heat-exchange system.
Embodiment 3
Drive steam turbine to rotate acting after one steam energy Multi-class propagation technique, the kinetic energy being had by high steam and potential energy release, steam turbine is exported the produced exhaust steam thermal source as bottom reboiler simultaneously；
Then the high-temperature condensation water unification produced by bottom reboiler is collected in condensing hot air furnace tank, and this high-temperature condensation water enters each technique heat tracing to 50 degree as water in heat tracing by heat-exchange system heat exchange.Heat-exchange system described in the present embodiment is plate fin heat-exchanging system.
Claims (2)
1. a steam energy Multi-class propagation technique, it is characterised in that:
Drive steam turbine to rotate acting after the kinetic energy being had by high steam and potential energy release, steam turbine is exported the produced exhaust steam thermal source as bottom reboiler simultaneously；
Then the high-temperature condensation water that produced by bottom reboiler is unified to be collected in condensing hot air furnace tank, and this high-temperature condensation water is utilized as thermal source at the bottom of tower by heat-exchange system heat exchange to set point of temperature the low temperature bottom reboiler of delivering to institute's calorific requirement relatively low；
Each technique heat tracing is entered as water in heat tracing after middle temperature condensed water heat exchange produced in above process；
Meeting water requirement on air cooling after last produced low-quality hot water heat exchange, replacement demineralized water uses as the fresh water (FW) of evaporation type air cooling, has reached the cascade utilization to high steam energy.
Steam energy Multi-class propagation technique the most according to claim 1, it is characterised in that: described heat-exchange system is plate fin heat-exchanging system or the one of coiled heat-exchange system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610336347.2A CN105822359A (en) | 2016-05-20 | 2016-05-20 | Steam energy multi-stage utilization technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610336347.2A CN105822359A (en) | 2016-05-20 | 2016-05-20 | Steam energy multi-stage utilization technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105822359A true CN105822359A (en) | 2016-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610336347.2A Pending CN105822359A (en) | 2016-05-20 | 2016-05-20 | Steam energy multi-stage utilization technology |
Country Status (1)
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| CN (1) | CN105822359A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080276617A1 (en) * | 2005-03-30 | 2008-11-13 | John Mak | Configurations and Methods For Thermal Integration of Lng Regasification and Power Plants |
| US20120267076A1 (en) * | 2009-12-11 | 2012-10-25 | Skc Co., Ltd | System for recovering waste heat |
| CN103055527A (en) * | 2013-01-11 | 2013-04-24 | 浙江嘉化集团股份有限公司 | Steam condensate residual heat recycling device of reboiler of rectification device |
| CN203518797U (en) * | 2013-08-01 | 2014-04-02 | 中国石油天然气股份有限公司 | Steam condensate waste heat recovery device |
| CN204522335U (en) * | 2015-02-09 | 2015-08-05 | 山东京博石油化工有限公司 | A kind of gas divides solvent reclamation communication device |
-
2016
- 2016-05-20 CN CN201610336347.2A patent/CN105822359A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080276617A1 (en) * | 2005-03-30 | 2008-11-13 | John Mak | Configurations and Methods For Thermal Integration of Lng Regasification and Power Plants |
| US20120267076A1 (en) * | 2009-12-11 | 2012-10-25 | Skc Co., Ltd | System for recovering waste heat |
| CN103055527A (en) * | 2013-01-11 | 2013-04-24 | 浙江嘉化集团股份有限公司 | Steam condensate residual heat recycling device of reboiler of rectification device |
| CN203518797U (en) * | 2013-08-01 | 2014-04-02 | 中国石油天然气股份有限公司 | Steam condensate waste heat recovery device |
| CN204522335U (en) * | 2015-02-09 | 2015-08-05 | 山东京博石油化工有限公司 | A kind of gas divides solvent reclamation communication device |
Non-Patent Citations (4)
| Title |
|---|
| 刘成军等: "《重沸器凝结水余热的有效利用》", 《中外能源》 * |
| 岳勇等: "《炼化企业热媒水低温余热回收利用方案》", 《油气田环境环保》 * |
| 李继炳等: "《热媒水回收利用多个工艺装置的低温余热》", 《炼油技术与工程》 * |
| 江焌: "《重复使用能量可减少蒸馏塔需要的燃料》", 《燕山油化》 * |
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Application publication date: 20160803 |
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