CN104482579A - Air cooling unit dual pressure circulating water heating system - Google Patents
Air cooling unit dual pressure circulating water heating system Download PDFInfo
- Publication number
- CN104482579A CN104482579A CN201410749778.2A CN201410749778A CN104482579A CN 104482579 A CN104482579 A CN 104482579A CN 201410749778 A CN201410749778 A CN 201410749778A CN 104482579 A CN104482579 A CN 104482579A
- Authority
- CN
- China
- Prior art keywords
- communicated
- low pressure
- valve
- air
- cylinder
- 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.)
- Granted
Links
Landscapes
- Engine Equipment That Uses Special Cycles (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses an air cooling unit dual pressure circulating water heating system comprising a low pressure cylinder A and a low pressure cylinder B. The exhaust port of the low pressure cylinder A is communicated with a condenser inlet through an exhaust valve A, a condenser outlet is communicated with a condensation system A through a condensation valve, the exhaust valve of the low pressure cylinder B is communicated with an air cooling island B through an exhaust valve B, a condensation system B is communicated with the water discharge pipe of the low pressure cylinder B, and the condensation system A and the condensation system B are connected to the condensation outlet. The system operates, a 600 MW air cooling unit is capable of recovering part of exhaust loss of the low pressure cylinders, and the working efficiency of residual exhaust and the power generating coal consumption are not influenced; design is reasonable, energy is saved, and unit efficiency is improved.
Description
Technical field
The present invention relates to heat supply process field, be specifically related to the two back pressure circulating water heating system of a kind of Air-cooled Unit.
Background technology
Air-cooled Unit high back pressure circulating water heating utilizes the original design high back pressure of unit to carry out high back pressure operation, reclaim the loss of low pressure (LP) cylinder steam discharge, 600MW Air-cooled Unit is two low pressure (LP) cylinder designs, when carrying out high back pressure circulating water heating and running, because displacement is large, quantity of circulating water and area of heat-supply service less, cause can only reclaim a part of steam discharge loss.When high back pressure circulating water heating runs, unit back pressuce runs to 35kPa by the 13kPa designed, because low pressure (LP) cylinder steam discharge can not reclaim completely, the steam discharge that unit does not reclaim runs 35kPa high back pressure equally and enters Air-Cooling Island, cause that mechanical efficiency is low, gross coal consumption rate increases, energy waste, reduces the benefit of high back pressure circulating water heating.
Summary of the invention
For making up the deficiencies in the prior art, the invention provides a kind of economize energy, the two back pressure circulating water heating system of the Air-cooled Unit that reasonable in design, workmanship efficiency is high.
The present invention is achieved through the following technical solutions:
The two back pressure circulating water heating system of a kind of Air-cooled Unit, comprise thermal power plant unit, thermal power plant unit comprises low pressure (LP) cylinder A and low pressure (LP) cylinder B, its special character is: the outlet of low pressure (LP) cylinder A gland steam exhauster is communicated with condenser entrance by exhaust steam valve A, condenser outlet is communicated with condensate system A by condensate valve, the outlet of low pressure (LP) cylinder B gland steam exhauster is communicated with Air-Cooling Island B by exhaust steam valve B, and condensate system B is communicated with the outlet pipe of Air-Cooling Island B, and condensate system A, condensate system B export with condensate water and be connected.
The two back pressure circulating water heating system of Air-cooled Unit of the present invention, the outlet of low pressure (LP) cylinder A gland steam exhauster is communicated with Air-Cooling Island A by exhaust steam valve C, and condensate system A is communicated with the outlet pipe of Air-Cooling Island A.
The two back pressure circulating water heating system of Air-cooled Unit of the present invention, heat supply network return pipe is communicated with the water inlet pipe of condenser by valve A, and heat supply network feed pipe and heat supply initial station are connected and pass through the outlet pipe that valve B is communicated with condenser.
The two back pressure circulating water heating system of Air-cooled Unit of the present invention, be provided with valve C between heat supply network return pipe and heat supply initial station, this valve C is between condenser water inlet pipe and outlet pipe.
The invention has the beneficial effects as follows: the present invention runs by the two back pressure circulating water heating system of Air-cooled Unit, realize 600MW Air-cooled Unit and can reclaim the loss of low pressure (LP) cylinder part steam discharge, do not affect again mechanical efficiency and the gross coal consumption rate of other a part of steam discharge, reasonable in design, economize energy, improves unit efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1 exhaust steam valve C, 2 exhaust steam valve A, 3 condensate valves, 4 valve A, 5 valve B, 6 valve C, 7 exhaust steam valve B, 8 low pressure (LP) cylinder A, 9 low pressure (LP) cylinder B, 10 condensers, 11 Air-Cooling Island A, 12 condensate system A, 13 heat supply initial stations, 14 Air-Cooling Island B, 15 condensate system B, 16 heat supply network return pipes, 17 heat supply network feed pipes, 18 condensate water outlets.
Detailed description of the invention
Accompanying drawing is a kind of detailed description of the invention of the present invention.This embodiment comprises thermal power plant unit, thermal power plant unit comprises low pressure (LP) cylinder A8 and low pressure (LP) cylinder B9, the outlet of low pressure (LP) cylinder A8 gland steam exhauster is communicated with condenser 10 entrance by exhaust steam valve A2, condenser 10 exports and is communicated with condensate system A12 by condensate valve 3, the outlet of low pressure (LP) cylinder A8 gland steam exhauster is communicated with Air-Cooling Island A11 by exhaust steam valve C1, condensate system A12 is communicated with the outlet pipe of Air-Cooling Island A11, the outlet of low pressure (LP) cylinder B9 gland steam exhauster is communicated with Air-Cooling Island B14 by exhaust steam valve B7, condensate system B15 is communicated with the outlet pipe of Air-Cooling Island B14, condensate system A12, condensate system B15 and condensate water export 18 and are connected, heat supply network return pipe 16 is communicated with the water inlet pipe of condenser 10 by valve A4, heat supply network feed pipe 17 and heat supply initial station 13 are connected and pass through the outlet pipe that valve B5 is communicated with condenser 10, valve C6 is provided with between heat supply network return pipe 16 and heat supply initial station 13, this valve C6 is between condenser 10 water inlet pipe and outlet pipe.
During heat supply running, it is 33kPa that low pressure (LP) cylinder A8 runs back pressure, it is 13kPa that low pressure (LP) cylinder B9 runs back pressure, exhaust steam valve 1 and valve C6 is closed during heat supply running, open exhaust steam valve A2, B7, condensate valve 3, valve 4,5, low pressure (LP) cylinder A8 steam discharge enters heat supply condenser 10, and heat supply network backwater enters condenser 10, heat supply network backwater is once heated, hot net water after heating enters heat supply initial station, and 13 carry out post bake by drawing gas, and the hot water after heating enters heat supply network, low pressure (LP) cylinder B9 steam discharge enters former Air-Cooling Island B14 and cools, and ensures that the loss of low pressure (LP) cylinder steam discharge is reclaimed completely.
Claims (4)
1. the two back pressure circulating water heating system of Air-cooled Unit, comprise thermal power plant unit, thermal power plant unit comprises low pressure (LP) cylinder A(8) and low pressure (LP) cylinder B(9), it is characterized in that: low pressure (LP) cylinder A(8) gland steam exhauster outlet by exhaust steam valve A(2) be communicated with condenser (10) entrance, condenser (10) outlet is communicated with condensate system A(12 by condensate valve (3)), low pressure (LP) cylinder B(9) gland steam exhauster outlet by exhaust steam valve B(7) be communicated with Air-Cooling Island B(14), condensate system B(15) be communicated with Air-Cooling Island B(14) outlet pipe, condensate system A(12), condensate system B(15) export (18) with condensate water and be connected.
2. the two back pressure circulating water heating system of Air-cooled Unit according to claim 1, it is characterized in that: low pressure (LP) cylinder A(8) gland steam exhauster outlet by exhaust steam valve C(1) with Air-Cooling Island A(11) be communicated with, condensate system A(12) and with Air-Cooling Island A(11) outlet pipe be communicated with.
3. the two back pressure circulating water heating system of Air-cooled Unit according to claim 1 and 2, it is characterized in that: heat supply network return pipe (16) is by valve A(4) be communicated with the water inlet pipe of condenser (10), heat supply network feed pipe (17) and heat supply initial station (13) are connected and pass through valve B(5) be communicated with the outlet pipe of condenser (10).
4. the two back pressure circulating water heating system of Air-cooled Unit according to claim 1 and 2, it is characterized in that: between heat supply network return pipe (16) and heat supply initial station (13), be provided with valve C(6), this valve C(6) be positioned at condenser (10) between water inlet pipe and outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749778.2A CN104482579B (en) | 2014-12-10 | 2014-12-10 | Air-cooled Unit double-backpressure circulating water heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410749778.2A CN104482579B (en) | 2014-12-10 | 2014-12-10 | Air-cooled Unit double-backpressure circulating water heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104482579A true CN104482579A (en) | 2015-04-01 |
| CN104482579B CN104482579B (en) | 2017-06-16 |
Family
ID=52757151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410749778.2A Expired - Fee Related CN104482579B (en) | 2014-12-10 | 2014-12-10 | Air-cooled Unit double-backpressure circulating water heating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104482579B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361085A (en) * | 2018-01-31 | 2018-08-03 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of double back pressure heating systems of low vacuum for air cooling turbo-generator |
| CN111287811A (en) * | 2020-03-31 | 2020-06-16 | 西安西热节能技术有限公司 | Vacuum online optimization method for optimal operation of high-backpressure step heating unit |
| CN111520792A (en) * | 2020-04-29 | 2020-08-11 | 北京国电蓝天节能科技开发有限公司 | Dead steam waste heat recovery and heat supply system and method for direct air cooling unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2509929C (en) * | 2002-12-18 | 2011-10-18 | Pratt & Whitney Canada Corp. | Fluid flow actuated flapper valve |
| CN103016082A (en) * | 2012-12-25 | 2013-04-03 | 华北电力大学 | 300MW-capacity-level low vacuum heat supply steam turbine system and adjusting method thereof |
| CN203114363U (en) * | 2013-01-08 | 2013-08-07 | 山东泓奥电力科技有限公司 | Large thermal generator set high back pressure circulating water heat supplying energy-saving system |
| CN203335149U (en) * | 2013-07-23 | 2013-12-11 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Mixed type heating structure of moisture cooling air cooling unit condensation water |
| CN203810510U (en) * | 2014-05-19 | 2014-09-03 | 山东泓奥电力科技有限公司 | High backpressure and anti-freezing air cooling island combined operation heating system for air cooling unit |
| CN204345766U (en) * | 2014-12-10 | 2015-05-20 | 山东泓奥电力科技有限公司 | The two back pressure circulating water heating system of Air-cooled Unit |
-
2014
- 2014-12-10 CN CN201410749778.2A patent/CN104482579B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2509929C (en) * | 2002-12-18 | 2011-10-18 | Pratt & Whitney Canada Corp. | Fluid flow actuated flapper valve |
| CN103016082A (en) * | 2012-12-25 | 2013-04-03 | 华北电力大学 | 300MW-capacity-level low vacuum heat supply steam turbine system and adjusting method thereof |
| CN203114363U (en) * | 2013-01-08 | 2013-08-07 | 山东泓奥电力科技有限公司 | Large thermal generator set high back pressure circulating water heat supplying energy-saving system |
| CN203335149U (en) * | 2013-07-23 | 2013-12-11 | 中国电力工程顾问集团华北电力设计院工程有限公司 | Mixed type heating structure of moisture cooling air cooling unit condensation water |
| CN203810510U (en) * | 2014-05-19 | 2014-09-03 | 山东泓奥电力科技有限公司 | High backpressure and anti-freezing air cooling island combined operation heating system for air cooling unit |
| CN204345766U (en) * | 2014-12-10 | 2015-05-20 | 山东泓奥电力科技有限公司 | The two back pressure circulating water heating system of Air-cooled Unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361085A (en) * | 2018-01-31 | 2018-08-03 | 哈尔滨汽轮机厂辅机工程有限公司 | A kind of double back pressure heating systems of low vacuum for air cooling turbo-generator |
| CN108361085B (en) * | 2018-01-31 | 2024-04-16 | 哈尔滨汽轮机厂辅机工程有限公司 | Low-vacuum double-back-pressure heating system for air-cooled generator set |
| CN111287811A (en) * | 2020-03-31 | 2020-06-16 | 西安西热节能技术有限公司 | Vacuum online optimization method for optimal operation of high-backpressure step heating unit |
| CN111520792A (en) * | 2020-04-29 | 2020-08-11 | 北京国电蓝天节能科技开发有限公司 | Dead steam waste heat recovery and heat supply system and method for direct air cooling unit |
| CN111520792B (en) * | 2020-04-29 | 2021-07-30 | 国电龙源节能技术有限公司 | Exhaust steam waste heat recovery and heat supply method for direct air cooling unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104482579B (en) | 2017-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102519067B (en) | Heating energy saving device with additional back pressure generator for extraction condensing unit and heating energy saving method | |
| CN107859538B (en) | Combined heat and power generation system for condensing back heat supply and operation method thereof | |
| CN202195714U (en) | Power plant steam-water system with waste steam heat transfer system | |
| CN104121047A (en) | Thermal power plant heat supply and steam extraction overbottom pressure utilization system with back pressure turbine | |
| CN201706478U (en) | Heat-recovering type demineralized water heating system | |
| CN103967544A (en) | Waste heat utilization system of gas-steam combined cycle generator set | |
| CN102997309A (en) | Classification heating system with high-temperature heat source heater bypass pipe | |
| CN204460852U (en) | Air source heat pump heat supply and blower fan generate electricity association system | |
| CN202074601U (en) | Steam exhausting, waste heat recovering and heating system of direct air cooling unit | |
| CN106195995A (en) | A kind of heating power jet pump height adds steam-supplying system | |
| CN104482579A (en) | Air cooling unit dual pressure circulating water heating system | |
| CN105649690A (en) | Large heat-to-electricity ratio combined heat and electricity generation system and work method thereof | |
| CN103953961A (en) | High back pressure and heat pump combined heat supply system for air cooling unit | |
| CN104807245A (en) | Low-temperature afterheat using system and afterheat using method | |
| CN204612228U (en) | A kind of low temperature heat system | |
| CN202441442U (en) | Regenerated steam-driven draught fan thermodynamic cycle system of air cooling unit of power plant | |
| CN102519033B (en) | Supercritical/super-supercritical unit heating drain recovery method | |
| CN105804816A (en) | Energy ladder utilization system for heating steam extracting of cogeneration turbine | |
| CN201652318U (en) | Water supply and drainage system of medium-pressure heater of power station | |
| CN202813417U (en) | Energy-saving system for preheating air by utilizing exhaust steam of small steam turbine in power plant | |
| CN202647946U (en) | Energy-saving electric heating system | |
| CN204345766U (en) | The two back pressure circulating water heating system of Air-cooled Unit | |
| CN204704010U (en) | A kind of bootstrap system of distributed energy | |
| CN209704655U (en) | A kind of steam turbine reducing-and-cooling plant using steam waste heat ladder mode | |
| CN204730680U (en) | Central cooler waste heat comprehensive utilization system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Guofeng Inventor after: Liu Lihua Inventor after: Gao Peng Inventor after: Liu Jinting Inventor after: Song Tao Inventor after: Sun Guijun Inventor before: Zhou Guofeng Inventor before: Gao Peng Inventor before: Liu Jinting Inventor before: Song Tao |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171227 Address after: High tech Development Zone in Ji'nan City, Shandong province 250101 Shun Road No. 359 Qing three century wealth center block B2 room 603 Co-patentee after: Chaoyang Yanshan Lake Power Generation Co., Ltd. Patentee after: Shandong Hongao Electric Power Technology Co., Ltd. Address before: High tech Development Zone in Ji'nan City, Shandong province 250101 Shun Road No. 359 Qing three century wealth center block B2 room 603 Patentee before: Shandong Hongao Electric Power Technology Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170616 Termination date: 20191210 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |