CN202228141U - Demineralized water absorption steam turbine waste heat system - Google Patents

Demineralized water absorption steam turbine waste heat system Download PDF

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Publication number
CN202228141U
CN202228141U CN2011202677121U CN201120267712U CN202228141U CN 202228141 U CN202228141 U CN 202228141U CN 2011202677121 U CN2011202677121 U CN 2011202677121U CN 201120267712 U CN201120267712 U CN 201120267712U CN 202228141 U CN202228141 U CN 202228141U
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CN
China
Prior art keywords
water
boiler
cooling
steam turbine
shaft seal
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
Application number
CN2011202677121U
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Chinese (zh)
Inventor
董志恒
左国粹
黄尧
范琳琳
王麟源
徐伟杰
张旭辉
柴之龙
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI MIYA JINQIAO ENERGY CO Ltd
Original Assignee
SHANGHAI MIYA JINQIAO ENERGY CO Ltd
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Filing date
Publication date
Application filed by SHANGHAI MIYA JINQIAO ENERGY CO Ltd filed Critical SHANGHAI MIYA JINQIAO ENERGY CO Ltd
Priority to CN2011202677121U priority Critical patent/CN202228141U/en
Application granted granted Critical
Publication of CN202228141U publication Critical patent/CN202228141U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a steam turbine shaft seal cooling system, particularly a demineralized water absorption steam turbine waste heat system. The system includes a raw water tank, a water treatment ion exchanger, a boiler water supply deoxygenator, a boiler water-feeding pump, a boiler and a steam turbine shaft seal heater which are successively connected through pipelines; and the system is characterized in that a cooling circulation pipeline in the cooling medium space of the steam turbine shaft seal heater is arranged on the pipeline between the water treatment ion exchanger and the boiler water supply deoxygenator. The system solves the technical problems that the cold water tower and the circulation water pump of a conventional turbo generator set shaft seal cooling system are high in construction costs and the cooling water is easy to evaporate to generate losses when the system in the prior art is in use. The system can effectively recycle the heat of the turbo generator set, and can reduce the consumption of the self-use steam during the raw water heating of boiler water treatment and the heating of the demineralized water in the deoxygenator.

Description

Demineralized water absorbs the turbine exhaust heat system
Technical field
The utility model relates to the turbine shaft seal cooling system, and particularly a kind of demineralized water absorbs the turbine exhaust heat system.
Background technique
The thermal power plant be the axle envelope of low pressure (LP) cylinder of the height of avoiding steam turbine, middle air cylinder and back pressure turbine to factory building spray a large amount of steam of emerging, exemplary systems is designed to through shaft sealing cooler with its recovery and condense into water and reclaim.Usually the cooling medium of shaft sealing cooler adopts independently closed system of low temperature water, after the cooling tower cooling, recycles, and custom is referred to as circulating water.
The structure of tradition turbine generator unit shaft envelope heater cooling system is as shown in Figure 1; It is in operation as the cooling gland heater 3 circulating water from cooling tower 1 through circulating water pump 2 pressure-raisings; Circulating water flow is the cooling medium space in gland heater 3, absorbs the heat of shaft-packing leakage, the vapor condenses Cheng Shui that the axle leak sealing is let out; Circulating water leans on system's residual pressure to spray into cooling tower 1 heat radiation, has both accomplished once circulation.The employed city tap-water of system gets into raw water box 4, purify through ion exchanger 5 through water-treating equipment and become demineralized water, after directly getting into oxygen-eliminating device 6 and removing deoxidation and other gas, sends boiler 8 to through boiler feed pump 7 pressure-raisings.
The existing shortcoming of above-mentioned existing system is: the construction cost of cooling tower, circulating water pump is higher in (1) system, and the easy evaporation loss of cooling water in use.(2) heat of Turbo-generator Set is lost, and is unfavorable for energy saving of system.
The model utility content
The purpose of the utility model is to provide a kind of demineralized water to absorb the turbine exhaust heat system; The construction cost that mainly solves cooling tower, circulating water pump in traditional turbine generator unit shaft envelope heater cooling system is higher; And the technical problem of the easy evaporation loss of cooling water in use; It can effectively reclaim the heat of Turbo-generator Set, reduces former water heating of boiler water processing and demineralized water heat personal steam in oxygen-eliminating device consumption, receives considerable energy-saving effect.
For realizing above-mentioned purpose, the utility model is to realize like this.
A kind of demineralized water absorbs the turbine exhaust heat system, and it comprises raw water box, water treatment ion exchanger, boiler supply water deaerating device, boiler feed pump and boiler and the turbine shaft seal heater that connects through pipeline successively; It is characterized in that: have on the pipeline between water treatment ion exchanger and the boiler supply water deaerating device and the cooling medium space of turbine shaft seal heater between the cool cycles pipeline.
Described demineralized water absorbs the turbine exhaust heat system, it is characterized in that: have a desalination water pump on the pipeline between described water treatment ion exchanger and the cool cycles pipeline.
Use the utility model system advantage compared with prior art to be.
The turbine shaft seal gas leakage waste heat system that absorbs the utility model demineralized water has adopted and has used demineralized water to replace the once through system of circulating water; Overcome the construction cost problem of higher of cooling tower, circulating water pump; And can guarantee in use the gland heater heat exchange surface cleaning, increased the temperature difference between heat, cold medium; Improve heat exchange efficiency, can also cause the heat recovery and utilization of atmosphere with using circulation to loose simultaneously.
The utility model is mainly used in thermal power generation, nuclear energy power generation, combined cycle gas power industry and provides the enterprise of generating for oneself.
Description of drawings
Fig. 1 is the structural representation of traditional turbine generator unit shaft envelope heater cooling system.
Among Fig. 1: 1, cooling tower, 2, circulating water pump, 3, the turbine shaft seal heater, 4, raw water box 5, water treatment ion exchanger, 6, the boiler supply water deaerating device, 7, boiler feed pump, 8, boiler, 9, steam turbine, 10, generator.
Fig. 2 is the structural representation that the utility model demineralized water absorbs turbine shaft seal gas leakage waste heat system.
Among Fig. 2: 3, turbine shaft seal heater, 4, raw water box, 5, the water treatment ion exchanger, 6, the boiler supply water deaerating device, 7, boiler feed pump, 8, boiler, 9, steam turbine, 10, generator.
Embodiment
See also Fig. 2, the utility model discloses a kind of demineralized water and absorb the turbine exhaust heat system.As shown in the figure: it comprises raw water box 4, water treatment ion exchanger 5, boiler supply water deaerating device 6, boiler feed pump 7 and boiler 8 and the turbine shaft seal heater 3 that connects through pipeline successively; It is characterized in that: have on the pipeline between water treatment ion exchanger 5 and the boiler supply water deaerating device 6 and the cooling medium space of turbine shaft seal heater 3 between the cool cycles pipeline.Has a desalination water pump on the pipeline between described water treatment ion exchanger 5 and the cool cycles pipeline.
When the utility model uses; City tap-water in service gets into raw water box 4, becomes demineralized water through the water-treating equipment purification through ion exchanger 5; Demineralized water is introduced into cooling medium space in the gland heater 3, absorbs the heat of shaft-packing leakage, the vapor condenses Cheng Shui that the axle leak sealing is let out; After demineralized water entering oxygen-eliminating device 6 after heat absorption heats up removes deoxidation and other gas, send boiler 8 to through boiler feed pump 7 pressure-raisings.
Being merely the preferred embodiment of the utility model in sum, is not the practical range that is used for limiting the utility model.Be that all equivalences of doing according to the content of the utility model claim change and modification, all should be the technological category of the utility model.

Claims (2)

1. a demineralized water absorbs the turbine exhaust heat system, and it comprises raw water box (4), water treatment ion exchanger (5), boiler supply water deaerating device (6), boiler feed pump (7) and boiler (8) and the turbine shaft seal heater (3) that connects through pipeline successively; It is characterized in that: have on the pipeline between water treatment ion exchanger (5) and the boiler supply water deaerating device (6) and the cooling medium space of turbine shaft seal heater (3) between the cool cycles pipeline.
2. demineralized water according to claim 1 absorbs the turbine exhaust heat system, it is characterized in that: have a desalination water pump on the pipeline between described water treatment ion exchanger (5) and the cool cycles pipeline.
CN2011202677121U 2011-07-27 2011-07-27 Demineralized water absorption steam turbine waste heat system Expired - Lifetime CN202228141U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011202677121U CN202228141U (en) 2011-07-27 2011-07-27 Demineralized water absorption steam turbine waste heat system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011202677121U CN202228141U (en) 2011-07-27 2011-07-27 Demineralized water absorption steam turbine waste heat system

Publications (1)

Publication Number Publication Date
CN202228141U true CN202228141U (en) 2012-05-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011202677121U Expired - Lifetime CN202228141U (en) 2011-07-27 2011-07-27 Demineralized water absorption steam turbine waste heat system

Country Status (1)

Country Link
CN (1) CN202228141U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047113A (en) * 2013-01-11 2013-04-17 佛山市海天调味食品股份有限公司 Heat energy recovery system for air compressor
CN104344395A (en) * 2013-07-24 2015-02-11 陈克秀 Novel power-plant raw water and boiler raw water heating system and method
CN104389647A (en) * 2014-11-27 2015-03-04 电能(北京)节能技术有限公司 Heat energy recovery system utilizing cold source afterheat of air cooling unit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103047113A (en) * 2013-01-11 2013-04-17 佛山市海天调味食品股份有限公司 Heat energy recovery system for air compressor
CN103047113B (en) * 2013-01-11 2015-08-12 佛山市海天调味食品股份有限公司 A kind of heat energy recovery system for air compressor
CN104344395A (en) * 2013-07-24 2015-02-11 陈克秀 Novel power-plant raw water and boiler raw water heating system and method
CN104389647A (en) * 2014-11-27 2015-03-04 电能(北京)节能技术有限公司 Heat energy recovery system utilizing cold source afterheat of air cooling unit

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Granted publication date: 20120523

CX01 Expiry of patent term