CN205535749U - Boiler -steam dome continuous blowdown water heat recovery system - Google Patents
Boiler -steam dome continuous blowdown water heat recovery system Download PDFInfo
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- CN205535749U CN205535749U CN201620203523.0U CN201620203523U CN205535749U CN 205535749 U CN205535749 U CN 205535749U CN 201620203523 U CN201620203523 U CN 201620203523U CN 205535749 U CN205535749 U CN 205535749U
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Abstract
The utility model relates to a boiler -steam dome continuous blowdown water heat recovery system, include, boiler -steam dome, with the supporting continuous blowdown flash vessel of boiler -steam dome with arrange the flash vessel surely, the steam turbine and with the supporting bearing seal heater of steam turbine, still include the heat exchanger, the heat exchanger is equipped with high -temperature water entry and high -temperature water export, cooling water inlet and coolant outlet, the high -temperature water entry is connected with the play water end (W. E. ) of continuous blowdown flash vessel, and the high -temperature water export is connected with the end of intaking of arranging the flash vessel surely, intake end and play water end (W. E. ) at the bearing seal heater are connected respectively to cooling water inlet and coolant outlet. Utility model's heat exchanger makes from boiler -steam dome exhaust high temperature sewage and condensate water and takes place heat exchange, reduces the sewer temperature, improves the temperature of condensing, reduces the unit heat rate, practices thrift the cost, improves the economic benefits of power plant.
Description
Technical field
This utility model relates to field of thermal power, especially a kind of boiler-steam dome continuous blowdown water heat recovery system.
Background technology
For subcritical dum boiler, properly functioning in order to ensure Steam-water Quality, continuous blowdown need to be carried out.Drum is continuous
Sewer enters continuous blowdown flash tank, and platoon flash steam enters oxygen-eliminating device and reclaims.In prior art, drop after platoon flash distillation
The sewer of temperature is introduced directly into determines row's flash vessel, enters outer row after the sewer cooling surely arranging flash vessel.Due to, boiler is even
Continuous sewer temperature 150～160 DEG C, therefore, directly drain sewage, cause amount of heat not to be recycled, cause
The significant wastage of resource.
Given this this utility model is proposed.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that a kind of recyclable, heat utilized in sewage
To reduce the boiler-steam dome continuous blowdown water heat recovery system of energy consumption.
In order to realize this purpose, this utility model adopts the following technical scheme that
A kind of boiler-steam dome continuous blowdown water heat recovery system, including continuous supporting with boiler-steam dome of, boiler-steam dome
Blowdown system and surely arrange flash vessel, steam turbine and the gland heater supporting with steam turbine, it is characterised in that: also
Including heat exchanger, described heat exchanger is provided with high-temperature water entrance and high-temperature water outlet, cooling water inlet and coolant outlet, institute
Stating high-temperature water entrance to be connected with the water side of continuous blowdown flash tank, high-temperature water outlet and the water inlet end surely arranging flash vessel connect
Connecing, described cooling water inlet and coolant outlet are connected to water inlet end and the water side of gland heater.
Further, the water side of described continuous blowdown flash tank connects the first blow-off pipe and the second blow-off pipe；First blowdown
Pipe is connected with the high-temperature water entrance of heat exchanger, and the second blow-off pipe is connected with the water inlet end surely arranging flash vessel；Described continuous blowdown
Flash vessel also has sewage inlet and steam drain, and described sewage inlet is connected with boiler-steam dome, and described steam drain passes through steam
Recovery pipe is connected with an oxygen-eliminating device.
Further, described steam drain is positioned at the top of continuous blowdown flash tank, is provided with one and removes in described steam recovery pipe
Oxygen device regulation valve.
Further, the water side of described continuous blowdown flash tank is positioned at the bottom of continuous blowdown flash tank, described first blowdown
Pipe and the second blow-off pipe are respectively equipped with control valve in the one end being connected with continuous blowdown flash tank water side.
Further, condenser, condensate pump, precision processing dress also it are connected with between described steam turbine and gland heater in turn
Putting, be also associated with final stage low-pressure heater in gland heater downstream, the water inlet end of described gland heater fills with precision processing
Putting connection, water side is connected with final stage low-pressure heater.
Further, described heat exchanger is arranged near gland heater, and is arranged side by side with gland heater.
Further, at the high-temperature water entrance of described heat exchanger, high-temperature water outlet, cooling water inlet, coolant outlet respectively
It is provided with at least one control valve, is additionally provided with a platoon level control valve in the downstream of high-temperature water discharge control valve.
Further, the bottom of described heat exchanger is provided with a blowoff valve, and top is provided with a relief valve.
Further, described heat exchanger is surface-type heat exchanger.
After using technical scheme described in the utility model, bring following beneficial effect:
This utility model is by increasing heat exchanger, it is achieved that boiler-steam dome platoon sewage and the heat exchange condensing water, reduces
The temperature of platoon sewage, improves and condenses water temperature, reclaims platoon sewerage heat energy, reduces unit heat consumption, cost-effective, improves
The economic benefit of power plant.
It addition, this utility model by exporting the electric control valve installed additional at heat exchanger high-temperature water, it is used for regulating continuously
Blowdown system water level, makes continuous blowdown flash tank water auto-regulation normal, it is ensured that platoon flash steam is recycled to remove smoothly
Oxygen device.In keeping heat exchanger, there is elevated pressures sewage side simultaneously, it is to avoid platoon sewage vaporizes.
Accompanying drawing explanation
Fig. 1: structure of the present utility model connects figure；
Wherein: 1, boiler-steam dome 2, oxygen-eliminating device 3, continuous blowdown flash tank 4, surely row's flash vessel 5, steamer
Machine 6, heat exchanger 7, condenser 8, condensate pump 9, precision processing device 10, gland heater 11, end
Level low-pressure heater.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail.
As it is shown in figure 1, a kind of boiler-steam dome continuous blowdown water heat recovery system, including, for producing high-pressure water vapor
Continuous blowdown flash tank 3 that boiler-steam dome 1 is supporting with boiler-steam dome 1 and surely row's flash vessel 4, steam turbine 5, Yi Jiyu
The gland heater 10 that steam turbine 5 is supporting, described continuous blowdown flash tank 3 is connected with boiler-steam dome 1 by pipeline,
The top of continuous blowdown flash tank 3 is connected by pipeline and an oxygen-eliminating device 2, and continuous blowdown flash tank 3 is used for collecting boiler
The High Temperature High Pressure sewage that drum 1 is discharged, and blood pressure lowering flash distillation, the flash steam that there are about total blowdown flow rate 45% is recovered by pipeline
To oxygen-eliminating device 2, it is recycled.For realizing the recovery of platoon sewerage heat energy, this system also includes, heat exchanger 6, institute
Stating heat exchanger 6 is heat-exchange device, and its side is passed through high-temperature water, and opposite side is passed through water at low temperature, and the current of different temperatures exist
Heat transfer occurring in heat exchanger 6, makes high-temperature water lower the temperature, water at low temperature heats up.
Specifically, described heat exchanger 6 is provided with high-temperature water entrance and high-temperature water outlet, cooling water inlet and coolant outlet；
Described high-temperature water entrance is connected by pipeline with the water side of continuous blowdown flash tank 3, and high-temperature water exports and surely arranges flash vessel
The water inlet end of 4 is connected by pipeline, and described cooling water inlet and coolant outlet are connected to entering of gland heater 10
Water end (W.E.) and water side, described heat exchanger 6 is arranged with gland heater 10 shunting, and the controlled 90% condensation water that there are about is delivered to
Gland heater 10,10% condenses water delivers to heat exchanger 6.
The water side of described continuous blowdown flash tank 3 is positioned at bottom continuous blowdown flash tank 3, and also has sewage inlet,
It is positioned at continuous blowdown flash tank 3 side, steam drain, is positioned at the top of continuous blowdown flash tank 3.Described sewage inlet leads to
Piping G1 is directly connected bottom boiler-steam dome 1, and this pipeline G1 is provided with a sewage discharging regulation valve V11, is used for controlling
Blowdown flow processed.Described water side connects three way cock, and is connected to the first blow-off pipe G3 by three way cock
It is connected with the high-temperature water entrance of heat exchanger 6 with the second blow-off pipe G4, described first blow-off pipe G3, the second blow-off pipe G4
Being connected with the water inlet end determining row's flash vessel 4, described first blow-off pipe G3 and the second blow-off pipe G4 is being connected with water side
One end be respectively equipped with control valve V6 and V7, for the break-make of control piper.Described steam drain passes through steam recovery pipe
G2 is connected with oxygen-eliminating device 2, is provided with an oxygen-eliminating device regulation valve V12 in steam recovery pipe G2.
The high-temperature water outlet of described heat exchanger 6 is connected, in the downstream of pipeline G5 with row's flash vessel 4 surely by pipeline G5
Section is provided with control valve V8, the sewage discharged from continuous blowdown flash tank 3 water side, can pass through the first blow-off pipe G3
Enter heat exchanger 6, heat exchanger 6 in after cooling, flow into along pipeline G5 and surely arrange flash vessel 4, or can also be direct
Row's flash vessel 4 surely is flowed into by the second blow-off pipe G4.
Preferably, the high-temperature water entrance of described heat exchanger 6, high-temperature water outlet, cooling water inlet, coolant outlet punishment
Not being provided with at least one control valve, respectively V3, V4, V1, V2, above-mentioned control valve can be that hand-operated valve can also be for electricity
Dynamic valve, in the downstream of high-temperature water discharge control valve V4, is additionally provided with platoon level control valve V10, and described platoon water level is adjusted
Joint valve V10 is arranged close to the water inlet end determining row's flash vessel 4, is used for regulating platoon water level, makes continuous blowdown flash tank 3
Water auto-regulation is normal, it is ensured that platoon flash steam is recycled to oxygen-eliminating device 2 smoothly.Keep sewage one in heat exchanger 6 simultaneously
There is elevated pressures side, it is to avoid sewage vaporizes.
Condenser 7, condensate pump 8, precision processing device it is connected with in turn between described steam turbine 5 and gland heater 10
9, it is also associated with final stage low-pressure heater 11 in gland heater 10 downstream.
Specifically, the condensation water that described steam turbine 5 steam discharge is produced by condenser 7 flow to condensate pump 8, condensate pump
8 are connected with precision processing device 9, and precision processing device 9 is connected by the water inlet end of pipeline G8 with gland heater 10,
Perforate on pipeline G8, meets skirt road G6, is connected with the cooling water inlet of heat exchanger 6, the cooling water of heat exchanger 6
Export and be connected to the pipeline G9, pipeline G9 that are connected with gland heater 10 water side finally and final stage by pipeline G7
Low-pressure heater 11 connects.
Preferably, described heat exchanger 6 is arranged close to gland heater 10, and is arranged side by side with gland heater 10.
Be provided with a blowoff valve V5 in the bottom of heat exchanger 6, it is manually to arrange that top is provided with a relief valve V9, described blowoff valve V5
Dirty valve, described relief valve V9 is spring loaded safety valve.
Preferably, described heat exchanger 6 is surface-type heat exchanger, and its principle is to allow heating agent flow through metallic conduit outer wall, and
Coolant to be processed flow through metal pipe internal wall carry out heat exchange reach heat coolant purpose, there is simple in construction, change
The thermal efficiency is high, the advantage of low cost.
Work process of the present utility model is: first, and the condensation water that steam turbine 5 steam discharge is produced by condenser 7 flow to coagulate
Bear water pump 8, condense water and boosted by condensate pump 8, through precision processing device 9, there are about 90% condensation water and deliver to axle envelope
Heater 10,10% condenses water delivers to heat exchanger 6, and meanwhile, what boiler-steam dome 1 produced accounts for the 1% of boiler capacity
Continuous blowdown water by pipeline G1, regulation valve V11 enters continuous blowdown flash tank 3, and continuous blowdown water is row continuously
Blood pressure lowering flash distillation in dirty flash vessel 3, there are about the flash steam of total blowdown flow rate 45% by steam recovery pipe G2 and oxygen-eliminating device
Regulation valve V12 is recovered to oxygen-eliminating device 2, and the remaining high temperature sewer of total blowdown flow rate 55% that there are about is through the first blow-off pipe
G3 is directed to heat exchanger 6, and high temperature sewer occurs heat transfer with condensing water at heat exchanger 6, the high temperature sewer after cooling
Flow through control valve V4, pipeline G5, control valve V8, pipeline G4, platoon level control valve V10 are discharged into and determine row's dilatation
Device 4, heated condensation water exports condensation aqueous phase along pipeline G7 and gland heater 10 and converges, flows back into final stage low pressure
Heater 11.
This utility model is exchanged by boiler-steam dome platoon sewage and the heat condensing water, reduces platoon sewage temperature, improves
Condense water temperature, reclaim platoon sewerage heat energy, reduce unit heat consumption, cost-effective, improve the economic benefit of power plant.
The above is embodiment of the present utility model, it is noted that for the ordinary skill in the art,
Without departing under this utility model principle premise, it is also possible to make various deformation and improvement, it is new that this also should be considered as this practicality
The protection domain of type.
Claims (9)
1. a boiler-steam dome continuous blowdown water heat recovery system, including, boiler-steam dome, the continuous blowdown flash tank supporting with boiler-steam dome and surely arrange flash vessel, steam turbine, and the gland heater supporting with steam turbine, it is characterized in that: also include heat exchanger, described heat exchanger is provided with high-temperature water entrance and high-temperature water outlet, cooling water inlet and coolant outlet, described high-temperature water entrance is connected with the water side of continuous blowdown flash tank, high-temperature water outlet is connected with the water inlet end surely arranging flash vessel, described cooling water inlet and coolant outlet are connected to water inlet end and the water side of gland heater.
A kind of boiler-steam dome continuous blowdown water heat recovery system the most according to claim 1, it is characterised in that: the water side of described continuous blowdown flash tank connects the first blow-off pipe and the second blow-off pipe；First blow-off pipe is connected with the high-temperature water entrance of heat exchanger, and the second blow-off pipe is connected with the water inlet end surely arranging flash vessel；Described continuous blowdown flash tank also has sewage inlet and steam drain, and described sewage inlet is connected with boiler-steam dome, and described steam drain is connected with an oxygen-eliminating device by steam recovery pipe.
A kind of boiler-steam dome continuous blowdown water heat recovery system the most according to claim 2, it is characterised in that: described steam drain is positioned at the top of continuous blowdown flash tank, is provided with an oxygen-eliminating device regulation valve in described steam recovery pipe.
A kind of boiler-steam dome continuous blowdown water heat recovery system the most according to claim 2, it is characterized in that: the water side of described continuous blowdown flash tank is positioned at the bottom of continuous blowdown flash tank, described first blow-off pipe and the second blow-off pipe and is respectively equipped with control valve in the one end being connected with continuous blowdown flash tank water side.
A kind of boiler-steam dome continuous blowdown water heat recovery system the most according to claim 1, it is characterized in that: be also connected with condenser, condensate pump, precision processing device between described steam turbine and gland heater in turn, be also associated with final stage low-pressure heater in gland heater downstream；The water inlet end of described gland heater is connected with precision processing device, and water side is connected with final stage low-pressure heater.
A kind of boiler-steam dome continuous blowdown water heat recovery system the most according to claim 1, it is characterised in that: described heat exchanger is arranged near gland heater, and is arranged side by side with gland heater.
A kind of boiler-steam dome continuous blowdown water heat recovery system the most according to claim 1, it is characterized in that: be respectively equipped with at least one control valve at the high-temperature water entrance of described heat exchanger, high-temperature water outlet, cooling water inlet, coolant outlet, be additionally provided with a platoon level control valve in the downstream of high-temperature water discharge control valve.
A kind of boiler-steam dome continuous blowdown water heat recovery system the most according to claim 1, it is characterised in that: the bottom of described heat exchanger is provided with a blowoff valve, and top is provided with a relief valve.
9. according to a kind of boiler-steam dome continuous blowdown water heat recovery system described in any one of claim 1-7, it is characterised in that: described heat exchanger is surface-type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620203523.0U CN205535749U (en) | 2016-03-16 | 2016-03-16 | Boiler -steam dome continuous blowdown water heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620203523.0U CN205535749U (en) | 2016-03-16 | 2016-03-16 | Boiler -steam dome continuous blowdown water heat recovery system |
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| CN205535749U true CN205535749U (en) | 2016-08-31 |
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| CN201620203523.0U Active CN205535749U (en) | 2016-03-16 | 2016-03-16 | Boiler -steam dome continuous blowdown water heat recovery system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477560A (en) * | 2017-08-08 | 2017-12-15 | 杭州航民小城热电有限公司 | Steam generator system |
| CN109141059A (en) * | 2018-09-03 | 2019-01-04 | 亿利洁能科技(武威)有限公司 | It is a kind of to determine heat extraction and recovery device |
| CN109578972A (en) * | 2018-11-27 | 2019-04-05 | 苏州恩基热能科技有限公司 | Dum boiler platoon recovery system and its processing method |
| CN110360768A (en) * | 2019-06-25 | 2019-10-22 | 华电电力科学研究院有限公司 | A kind of coal-burning power plant's utilizing waste heat for refrigeration system |
| CN113375146A (en) * | 2021-07-19 | 2021-09-10 | 唐山中浩化工有限公司 | Boiler drum blowdown water recovery system |
| CN113864021A (en) * | 2021-12-02 | 2021-12-31 | 中国电力工程顾问集团西北电力设计院有限公司 | Boiler continuous blowdown waste heat and excess pressure comprehensive utilization system and method |
| CN113979582A (en) * | 2021-11-01 | 2022-01-28 | 青岛海湾化工设计研究院有限公司 | Boiler blowdown waste water recovery treatment equipment |
| CN114659088A (en) * | 2022-03-14 | 2022-06-24 | 中国恩菲工程技术有限公司 | Dead steam energy collecting system and cooling water flow determining method |
-
2016
- 2016-03-16 CN CN201620203523.0U patent/CN205535749U/en active Active
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107477560A (en) * | 2017-08-08 | 2017-12-15 | 杭州航民小城热电有限公司 | Steam generator system |
| CN109141059A (en) * | 2018-09-03 | 2019-01-04 | 亿利洁能科技(武威)有限公司 | It is a kind of to determine heat extraction and recovery device |
| CN109141059B (en) * | 2018-09-03 | 2023-12-15 | 亿利洁能科技(武威)有限公司 | Fixed heat removal recovery device |
| CN109578972A (en) * | 2018-11-27 | 2019-04-05 | 苏州恩基热能科技有限公司 | Dum boiler platoon recovery system and its processing method |
| CN110360768A (en) * | 2019-06-25 | 2019-10-22 | 华电电力科学研究院有限公司 | A kind of coal-burning power plant's utilizing waste heat for refrigeration system |
| CN110360768B (en) * | 2019-06-25 | 2024-04-30 | 华电电力科学研究院有限公司 | Waste heat refrigerating system of coal-fired power plant |
| CN113375146A (en) * | 2021-07-19 | 2021-09-10 | 唐山中浩化工有限公司 | Boiler drum blowdown water recovery system |
| CN113979582A (en) * | 2021-11-01 | 2022-01-28 | 青岛海湾化工设计研究院有限公司 | Boiler blowdown waste water recovery treatment equipment |
| CN113979582B (en) * | 2021-11-01 | 2024-02-27 | 青岛海湾化工设计研究院有限公司 | Boiler blowdown waste water recovery processing equipment |
| CN113864021A (en) * | 2021-12-02 | 2021-12-31 | 中国电力工程顾问集团西北电力设计院有限公司 | Boiler continuous blowdown waste heat and excess pressure comprehensive utilization system and method |
| CN114659088A (en) * | 2022-03-14 | 2022-06-24 | 中国恩菲工程技术有限公司 | Dead steam energy collecting system and cooling water flow determining method |
| CN114659088B (en) * | 2022-03-14 | 2024-02-06 | 中国恩菲工程技术有限公司 | Exhaust steam energy collecting system and cooling water flow determining method |
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