CN205744026U - Exhaust steam of electric power plant heating Living Water and softening water heat supply water charging system - Google Patents
Exhaust steam of electric power plant heating Living Water and softening water heat supply water charging system Download PDFInfo
- Publication number
- CN205744026U CN205744026U CN201620610655.5U CN201620610655U CN205744026U CN 205744026 U CN205744026 U CN 205744026U CN 201620610655 U CN201620610655 U CN 201620610655U CN 205744026 U CN205744026 U CN 205744026U
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- water
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- valve
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 212
- 238000010438 heat treatment Methods 0.000 title claims abstract description 33
- 239000008400 supply water Substances 0.000 title claims abstract description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000003546 flue gas Substances 0.000 claims abstract description 35
- 238000000605 extraction Methods 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000000428 dust Substances 0.000 claims description 15
- 230000001502 supplementing effect Effects 0.000 claims description 10
- 238000006477 desulfuration reaction Methods 0.000 claims 2
- 230000023556 desulfurization Effects 0.000 claims 2
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000007789 gas Substances 0.000 abstract description 3
- 239000003500 flue dust Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000003020 moisturizing effect Effects 0.000 abstract 1
- 239000002918 waste heat Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000005536 corrosion prevention Methods 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Engine Equipment That Uses Special Cycles (AREA)
Abstract
The utility model proposes a kind of exhaust steam of electric power plant heating Living Water and soften water heat supply water charging system, including: steam turbine, blow-off line, air cooling heat radiator, extraction line, the first vapor-water heat exchanger, softening water carry out waterpipe, soften water moisturizing to heating cycle waterpipe, raw water pipe, raw water pump, the first blender, hot water circulating pump, condensing water conduit, domestic hot-water to user pipe, space-heating installation, the low-temperature flue gas economizer being located in flue, the second blender and the second vapor-water heat exchanger.This utility model is in order to utilize exhaust steam and flue gas surplus, arrive low-temperature flue gas economizer again by steam water heater and part water to heat, after mixing, water temperature reaches 60 75 DEG C, it is transported to each hotel, city by utilidor and hotel's hot water mother's pipe connects, replace the little electric boiler in hotel, gas fired-boiler etc., save a large amount of primary energy simultaneously, also greatly reduce SO2、CO2、NOxAnd the discharge of flue dust, economic benefit and social benefit highly significant.
Description
Technical Field
The utility model relates to a retrieve exhaust steam waste heat technical field, especially indicate a power plant exhaust steam heating running water and demineralized water heat supply water charging system.
Background
At present, the exhausted steam of a steam turbine of a power plant dissipates heat through an air cooling radiator, and the waste steam is lost, which accounts for more than 30% of the total energy of the power plant, so that the energy waste and the heat pollution to the environment are caused.
SUMMERY OF THE UTILITY MODEL
The utility model provides a steam exhaust of power plant adds hot tap water and demineralized water heat supply water charging system has solved the great problem of steam exhaust waste heat loss among the prior art.
The technical scheme of the utility model is realized like this:
the utility model provides a power plant's exhaust steam heating live water and demineralized water heat supply water charging system, includes: the system comprises a steam turbine, a steam exhaust pipeline, an air cooling radiator, a steam extraction pipeline, a first steam-water heat exchanger, a softened water incoming pipeline, a softened water supplementing to heat supply circulating water pipeline, a raw water pump, a first mixer, a hot water circulating pump, a hot water to low-temperature flue gas economizer pipeline, a condensed water pipeline, a domestic hot water to user pipeline, a heating heat user, a water return pump, a water return pipeline, a flue arranged on a boiler, and a low-temperature flue gas economizer, a second mixer, a low-temperature flue gas economizer water outlet pipeline and a second steam-water heat exchanger which are arranged in the flue; wherein, the exhaust steam pipeline that one end is connected with the steam turbine, its other end falls into two branches: the tail end of the first branch provided with the valve is connected with the air cooling radiator; the tail end of the second branch is connected with a second steam-water heat exchanger, the second steam-water heat exchanger is connected with a condensed water pipeline, and the pipelines at the two ends of the second steam-water heat exchanger are provided with valves; a steam extraction pipeline with a valve is also arranged between the steam turbine and the second steam-water heat exchanger, and the steam extraction pipeline is parallel to the second branch; the first steam-water heat exchanger and the second steam-water heat exchanger are arranged in parallel; one end of the first steam-water heat exchanger is connected with the condensed water pipeline, and the other end of the first steam-water heat exchanger is connected with the second branch; one side of the first steam-water heat exchanger is connected with a softened water incoming water pipeline, the other side of the first steam-water heat exchanger is connected with a softened water supplementing and heat supplying circulating water pipeline, and pipelines on two sides of the first steam-water heat exchanger are provided with valves; a raw water pipeline connected with the first mixer, wherein a raw water pump is arranged on the raw water pipeline, and valves are arranged at two ends of the raw water pump; a hot water circulating pump is arranged on a pipeline between the second steam-water heat exchanger and the first mixer, and valves are arranged at two ends of the hot water circulating pump; the first mixer is connected with a heating user through a water return pipeline, a water return pump is arranged on the water return pipeline, valves are arranged at two ends of the water return pump, and a valve is arranged at the joint of the first mixer and the water pipeline; a second mixer is arranged on a pipeline between the heating heat user and the second steam-water heat exchanger, a first valve is arranged on a pipeline between the second mixer and the heating heat user, and domestic hot water with a valve is divided into user pipelines on the pipeline between the first valve and the second mixer; a second valve and a third valve are arranged on a pipeline between the second mixer and the second steam-water heat exchanger; the water inlet of the low-temperature flue gas economizer is connected to a pipeline between the second valve and the third valve through a pipeline from hot water with a valve to the low-temperature flue gas economizer; the water outlet of the low-temperature flue gas economizer is connected with the second mixer through a water outlet pipeline of the low-temperature flue gas economizer provided with a valve.
The utility model has the advantages that: the back pressure of air-cooled exhaust steam of a steam turbine of a power plant is high, in order to utilize the residual steam and the residual flue gas, the steam-water heater and part of water are heated by a low-temperature flue gas economizer, the mixed water temperature reaches 60-75 ℃, and the mixed water is conveyed to various hotels in cities and hot water main pipes of the hotels to be connected through heat-insulating pipelines, so that small electric boilers, gas boilers and the like of the hotels are replaced. In winter, the heat supply system can also supply heat to buildings such as hotels, factories and residential buildings, dormitories, dining halls, office buildings and the like around the factories. Simultaneously, for the urban centralized heat supply primary pipe network system of the thermal power plant, the water supplementing temperature of softened water is up to 25 ℃, the softened water is heated to about 45-55 ℃ by a steam-water heater, and then the softened water is supplemented into the urban centralized heat supply primary pipe network system; thereby saving a large amount of primary energy and greatly reducing SO2、CO2、NOxAnd the emission of smoke dust, and the economic benefit and the social benefit are very obvious.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural diagram of a system for supplying heat and water by heating live water and softened water with exhaust steam of a power plant in the embodiment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Fig. 1 is a schematic structural diagram of a system for heating and supplementing hot and softened water by using exhaust steam of a power plant according to an illustrative embodiment.
The system for heating and supplying water by using the dead steam of the power plant to heat the domestic water and soften the water in the illustrative embodiment comprises: the system comprises a steam turbine 1, a steam exhaust pipeline, an air cooling radiator 3, a steam extraction pipeline 4, a first steam-water heat exchanger 5, a softened water incoming water pipeline 6, a softened water supplementing and heat supplying circulating water pipeline 7, a raw water pipeline 8, a raw water pump 9, a first mixer 10, a hot water circulating pump 11, a hot water to low-temperature flue gas economizer pipeline 12, a condensed water pipeline 13, a domestic hot water to user pipeline 14, a heating heat user 15, a water return pump 16, a water return pipeline 17, a flue 22 arranged on a boiler 18, a low-temperature flue gas economizer 21 arranged in the flue 22, a second mixer 23, a low-temperature flue gas economizer water outlet pipeline 24 and a second steam-water heat exchanger 25; wherein,
The exhaust steam pipeline that one end and steam turbine 1 are connected, its other end falls into two branches: the tail end of the first branch 201 provided with a valve is connected with the air cooling radiator 3; the tail end of the second branch 202 is connected with a second steam-water heat exchanger 25, the second steam-water heat exchanger 25 is connected with a condensed water pipeline 13, and pipelines at two ends of the second steam-water heat exchanger 25 are provided with valves; an extraction pipeline 4 with a valve is further arranged between the steam turbine 1 and the second steam-water heat exchanger 25, and the extraction pipeline 4 is parallel to the second branch 202;
the first steam-water heat exchanger 5 with valves is arranged on the pipelines at the two ends and is arranged in parallel with the second steam-water heat exchanger 25; one end of the first steam-water heat exchanger 5 is connected with the condensed water pipeline 13, and the other end is connected with the second branch 202; one side of the first steam-water heat exchanger 5 is connected with a softened water incoming pipeline 6, the other side of the first steam-water heat exchanger is connected with a softened water supplementing and heat supplying circulating water pipeline 7, and pipelines on two sides of the first steam-water heat exchanger 5 are provided with valves;
a raw water pipeline 8 connected with the first mixer 10, wherein a raw water pump 9 is arranged on the raw water pipeline, and valves are arranged at two ends of the raw water pump 9;
a hot water circulating pump 11 is arranged on a pipeline between the second steam-water heat exchanger 25 and the first mixer 10, and valves are arranged at two ends of the hot water circulating pump 11;
The first mixer 10 is connected with the heating users 15 through a water return pipeline 17, a water return pump 16 is arranged on the water return pipeline 17, valves are arranged at two ends of the water return pump 16, and a valve is arranged at the joint of the first mixer 10 and the water pipeline 17;
a second mixer 23 is arranged on a pipeline between the heating heat user 15 and the second steam-water heat exchanger 25, a first valve 31 is arranged on a pipeline between the second mixer 23 and the heating heat user 15, and domestic hot water with a valve is branched to a user pipeline 14 on a pipeline between the first valve 31 and the second mixer 23; a second valve 32 and a third valve 33 are arranged on a pipeline between the second mixer 23 and the second steam-water heat exchanger 25;
the water inlet of the low-temperature flue gas economizer 21 is connected to a pipeline between a second valve 32 and a third valve 33 through a hot water to low-temperature flue gas economizer pipeline 12 provided with valves;
the water outlet of the low-temperature flue gas economizer 21 is connected with a second mixer 23 through a low-temperature flue gas economizer water outlet pipeline 24 provided with a valve.
Preferably, the flue 22 of the above embodiment is provided with the dust remover 19 and the desulphurization device 20 in sequence, and the low-temperature flue gas economizer 21 is located between the dust remover 19 and the desulphurization device 20.
Preferably, the dust remover 19 in the above embodiment is an electric dust remover or an electric bag dust remover.
In the embodiment, the back pressure of air-cooled exhaust steam of a steam turbine of a power plant is high, in order to utilize the steam exhaust and the residual amount of flue gas, the steam-water heater and the low-temperature flue gas economizer are used for heating, the mixed water temperature reaches 60-75 ℃, the mixed water temperature is connected with a domestic hot water to user pipelines 14 through heat insulation pipelines and is conveyed to hot water main pipes of hotels in cities, so that a small electric boiler, a gas boiler and the like of the hotels are replaced, and heat can be supplied to buildings such as residential buildings, dormitories, dining halls, office buildings and the like around the hotels, factories and the. Simultaneously, for the urban centralized heat supply primary pipe network system of the thermal power plant, the softened water supplementing temperature is 25 ℃ at most, the softened water is heated to about 45-55 ℃ by a steam-water heater, and then the softened water is supplemented to a heat supply circulating water pipeline 7 by the softened water and is supplemented to the urban centralized heat supply primary pipe network system; thereby saving a large amount of primary energy and greatly reducing SO2、CO2、NOxAnd the emission of smoke dust, and the economic benefit and the social benefit are very obvious.
In the embodiment, the exhaust temperature of the power plant boiler is generally between 125-142 ℃, the low-temperature flue gas economizer can be arranged between the dust remover and the desulphurization device or between the primary electric dust remover and the secondary electric dust remover, and the flue gas waste heat is utilized to continuously heat the running water so as to save more primary energy. In order to save energy, the extracted steam is used as a heat source and is generally not used or used less; when the low-temperature flue gas economizer is not used for maintenance and the like, the steam can be used for heating the domestic water and the heating circulating water to replace the low-temperature flue gas economizer so as to ensure the temperature of the heat supply and the domestic water; if the low-temperature flue gas economizer device is not arranged, the domestic water and the heating in winter need to be heated by using steam extraction, so that the heat supply and the temperature of the domestic water are ensured. After the heating system is stopped, the heating system is cut off from the domestic water system through a valve, so that the heating water system is protected by adding chemicals and corrosion prevention.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The utility model provides a power plant's exhaust steam heating live water and demineralized water heat supply water charging system which characterized in that includes: the system comprises a steam turbine (1), a steam exhaust pipeline, an air cooling radiator (3), a steam extraction pipeline (4), a first steam-water heat exchanger (5), a softened water inlet pipeline (6), a softened water replenishing and heat supply circulating water pipeline (7), a raw water pipeline (8), a raw water pump (9), a first mixer (10), a hot water circulating pump (11), a hot water-to-low temperature flue gas economizer pipeline (12), a condensed water pipeline (13), a domestic hot water-to-user pipeline (14), a heating heat user (15), a water return pump (16), a water return pipeline (17), a flue (22) arranged on a boiler (18), and a low temperature flue gas economizer (21), a second mixer (23), a low temperature flue gas economizer water outlet pipeline (24) and a second steam-water heat exchanger (25) arranged in the flue (22); wherein,
the steam exhaust pipeline that one end and steam turbine (1) are connected, its other end divides into two branches: the tail end of the first branch (201) provided with a valve is connected with the air-cooled radiator (3); the tail end of the second branch (202) is connected with a second steam-water heat exchanger (25), the second steam-water heat exchanger (25) is connected with a condensed water pipeline (13), and valves are arranged on pipelines at two ends of the second steam-water heat exchanger (25); an extraction pipeline (4) with a valve is further arranged between the steam turbine (1) and the second steam-water heat exchanger (25), and the extraction pipeline (4) is parallel to the second branch (202);
The first steam-water heat exchanger (5) with valves is arranged on the pipelines at the two ends and is arranged in parallel with the second steam-water heat exchanger (25); one end of the first steam-water heat exchanger (5) is connected with the condensed water pipeline (13), and the other end of the first steam-water heat exchanger is connected with the second branch (202); one side of the first steam-water heat exchanger (5) is connected with a softened water incoming pipeline (6), the other side of the first steam-water heat exchanger is connected with a softened water supplementing and heat supplying circulating water pipeline (7), and pipelines on two sides of the first steam-water heat exchanger (5) are respectively provided with a valve;
a raw water pipeline (8) connected with the first mixer (10), wherein a raw water pump (9) is arranged on the raw water pipeline, and valves are arranged at two ends of the raw water pump (9); a hot water circulating pump (11) is arranged on a pipeline between the second steam-water heat exchanger (25) and the first mixer (10), and valves are arranged at two ends of the hot water circulating pump (11);
the first mixer (10) is connected with a heating user (15) through a water return pipeline (17), a water return pump (16) is arranged on the water return pipeline (17), valves are arranged at two ends of the water return pump (16), and a valve is arranged at the joint of the first mixer (10) and the water pipeline (17);
a second mixer (23) is arranged on a pipeline between the heating heat user (15) and the second steam-water heat exchanger (25), a first valve (31) is arranged on a pipeline between the second mixer (23) and the heating heat user (15), and domestic hot water with a valve is distributed to a user pipeline (14) on a pipeline between the first valve (31) and the second mixer (23); a second valve (32) and a third valve (33) are arranged on a pipeline between the second mixer (23) and the second steam-water heat exchanger (25);
The water inlet of the low-temperature flue gas economizer (21) is connected to a pipeline between a second valve (32) and a third valve (33) through a hot water-to-low-temperature flue gas economizer pipeline (12) provided with a valve;
the water outlet of the low-temperature flue gas economizer (21) is connected with a second mixer (23) through a low-temperature flue gas economizer water outlet pipeline (24) provided with a valve.
2. The power plant exhaust steam heating live water and softened water heating and water supplementing system according to claim 1, characterized in that a dust remover (19) and a desulfurization device (20) are sequentially arranged on the flue (22), and the low-temperature flue gas economizer (21) is positioned between the dust remover (19) and the desulfurization device (20).
3. The power plant exhaust steam heating live water and softened water heating and water supplementing system according to claim 2, characterized in that the dust remover (19) is an electric dust remover or an electric bag dust remover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620610655.5U CN205744026U (en) | 2016-06-20 | 2016-06-20 | Exhaust steam of electric power plant heating Living Water and softening water heat supply water charging system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620610655.5U CN205744026U (en) | 2016-06-20 | 2016-06-20 | Exhaust steam of electric power plant heating Living Water and softening water heat supply water charging system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205744026U true CN205744026U (en) | 2016-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620610655.5U Expired - Fee Related CN205744026U (en) | 2016-06-20 | 2016-06-20 | Exhaust steam of electric power plant heating Living Water and softening water heat supply water charging system |
Country Status (1)
| Country | Link |
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| CN (1) | CN205744026U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202356A (en) * | 2017-06-19 | 2017-09-26 | 北京北方三合能源技术有限公司 | A kind of exhaust heat stepped utilization heating system of fired power generating unit |
| CN108223028A (en) * | 2018-02-11 | 2018-06-29 | 华电郑州机械设计研究院有限公司 | A kind of filling formula back pressure turbine heating system |
| CN110242371A (en) * | 2019-05-30 | 2019-09-17 | 中国船舶重工集团公司第七一九研究所 | Back pressure turbine steam exhaust system and its steam exhaust utilize method |
-
2016
- 2016-06-20 CN CN201620610655.5U patent/CN205744026U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107202356A (en) * | 2017-06-19 | 2017-09-26 | 北京北方三合能源技术有限公司 | A kind of exhaust heat stepped utilization heating system of fired power generating unit |
| CN107202356B (en) * | 2017-06-19 | 2022-12-06 | 北京北方三合能源技术有限公司 | Waste heat cascade utilization heating system of thermal power generating unit |
| CN108223028A (en) * | 2018-02-11 | 2018-06-29 | 华电郑州机械设计研究院有限公司 | A kind of filling formula back pressure turbine heating system |
| CN110242371A (en) * | 2019-05-30 | 2019-09-17 | 中国船舶重工集团公司第七一九研究所 | Back pressure turbine steam exhaust system and its steam exhaust utilize method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170215 Address after: The development of road 030006 Shanxi city of Taiyuan province high tech Development Zone No. 48 New Island Technology Park E block 3 layer Patentee after: Shanxi Zhangze Power Saving Technology Co Ltd Address before: 030001 Yingze street, Shanxi, Taiyuan, 255 Patentee before: Lu Bin |
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| TR01 | Transfer of patent right |
Effective date of registration: 20170711 Address after: 030006 Shanxi province Taiyuan city district and State Road No. 199 Building 1 room 901 9 Patentee after: Shanxi Zheng He thermoelectric Engineering Co., Ltd. Address before: The development of road 030006 Shanxi city of Taiyuan province high tech Development Zone No. 48 New Island Technology Park E block 3 layer Patentee before: Shanxi Zhangze Power Saving Technology Co Ltd |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161130 Termination date: 20190620 |
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| CF01 | Termination of patent right due to non-payment of annual fee |