CN208282073U - Waste heat comprehensive utilization system for garbage incinerating power plant - Google Patents
Waste heat comprehensive utilization system for garbage incinerating power plant Download PDFInfo
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- CN208282073U CN208282073U CN201820555818.3U CN201820555818U CN208282073U CN 208282073 U CN208282073 U CN 208282073U CN 201820555818 U CN201820555818 U CN 201820555818U CN 208282073 U CN208282073 U CN 208282073U
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Abstract
The utility model provides a kind of waste heat comprehensive utilization system for garbage incinerating power plant comprising: platoon flash vessel isolates platoon secondary steam and spent hot water from boiler platoon water, and the platoon secondary steam imports oxygen-eliminating device；Hydrophobic development unit, by generated in power plant steam-water circulation system it is hydrophobic be separated into hydrophobic secondary steam and hot water, hydrophobic secondary steam is imported into condenser；Hot water mixing tank, boiler of the mixing from water-cooling wall upper collecting chamber drain surely, the spent hot water from platoon flash vessel and the hot water from hydrophobic development unit；Screw expander drives the yin-yang screw rod of the screw expander to do work in the hot water from the hot water mixing tank, and drives power plant load under screw rod rotation.Waste heat comprehensive utilization system according to the present utility model for garbage incinerating power plant sufficiently recycles boiler blowdown water and hydrophobic waste heat, for driving station-service load, improves the utilization rate of waste heat of burning power plant, reduces station service power consumption rate.
Description
Technical field
The utility model relates to garbage incinerating power plant residual-heat utilization technologies, are used for waste incineration in particular to one kind
The waste heat comprehensive utilization system in power plant.
Background technique
With the development of waste incineration and generating electricity technology, improves steam parameter and have become raising garbage incinerating power plant circulation effect
Rate, the key technology means for enhancing enterprise competitiveness, and requirement of the high parameter boiler to Steam-water Quality is also further stringent.Therefore,
In order to ensure boiler Steam-water Quality qualification is up to standard, conventional rubbish burning boiler drum is provided with continuous blow off equipment and periodically row
Dirty device, blowdown rate is between 1%-2%.Continuous blow off equipment is by the maximum furnace water row of salinity under drum water level
Out, to maintain boiler water salt content, stablize steam quality, and periodic blowdown be by sediment, iron rust in furnace water etc. no
Soluble substance periodically exhausts, and generally draws from boiler water wall upper collecting chamber bottom.Boiler blowdown water generally has higher temperature, pressure
Power, potential heat is larger, and with the increase of burning power plant boiler capacity, water amount of blowdown is also increase accordingly, sewerage
Thermal loss is huge.In addition, power plant steam-water system, there are numerous throttle mechanisms, steam parameter reduces in throttling process, can send out
Raw steam condensation, and condensed water also has very considerable heat, if considerable energy loss will be caused by directly exhausting.
Therefore, it is necessary to propose a kind of waste heat comprehensive utilization system for garbage incinerating power plant, to improve more than electric field
The utilization rate and utilizing status of heat.
Utility model content
A series of concept of reduced forms is introduced in utility model content part, this will be in specific embodiment part
Middle further description.The utility model content part of the utility model is not meant to attempt to limit claimed
Technical solution key feature and essential features, do not mean that the guarantor for attempting to determine technical solution claimed more
Protect range.
In order at least be partially solved the above problem, the utility model discloses a kind of for more than garbage incinerating power plant
Hot utilization system comprising:
Platoon flash vessel, the platoon flash vessel are connected to the oxygen-eliminating device of the drum of garbage burning boiler and power plant,
Boiler platoon water introduces the platoon flash vessel by the drum, and the platoon flash vessel is isolated from the boiler platoon water
Platoon secondary steam and spent hot water, the platoon secondary steam import in the oxygen-eliminating device for removing the oxygen in boiler feedwater
Gas；
Hydrophobic development unit, the hydrophobic development unit are configured to hydrophobic be separated into what is generated in power plant steam-water circulation system
Hydrophobic secondary steam and hot water, the hydrophobic secondary steam are imported into the condenser in the power plant steam-water circulation system with weight
It newly returns in the steam-water circulation system；
Water-cooling wall upper collecting chamber, the platoon of hot water mixing tank, the hot water mixing tank and the garbage burning boiler expand
Container is connected to the hydrophobic development unit, and the boiler from the water-cooling wall upper collecting chamber drains, surely from the platoon flash vessel
Spent hot water and hot water from the hydrophobic development unit mixed in the hot water mixing tank；
Screw expander, the screw expander are configured to be connected to the hot water mixing tank, mix from the hot water
The hot water of case drives the yin-yang screw rod of the screw expander to do work, and drives power plant to use under screw rod rotation and bear
Lotus.
In one embodiment of the utility model, the bottom of the hot water mixing tank is provided with hot water discharger,
For controlling the flow for the hot water being discharged from the hot water mixing tank.
In one embodiment of the utility model, the screw expander passes through the defeated slag system of waterpower of pipeline and power plant
System connection introduces the defeated slag system of waterpower for that will do the water that completes in the screw expander, using as cold source to described
The deslagging of garbage burning boiler carries out cooling and transports.
In one embodiment of the utility model, platoon water is provided between the drum and the platoon flash vessel
Pipeline.
In one embodiment of the utility model, one end that the platoon waterpipe is located at the drum is arranged described
Under steam water-level line liquid level.
In one embodiment of the utility model, platoon is provided between the platoon flash vessel and the oxygen-eliminating device
Secondary steam pipeline is provided with waste heat waterpipe between the platoon flash vessel and the hot water mixing tank.
In one embodiment of the utility model, the platoon secondary steam pipeline is located at the one of the platoon flash vessel
The top of the platoon flash vessel is arranged in end, and one end that the waste heat waterpipe is located at the platoon flash vessel is arranged described
The bottom end of platoon flash vessel.
In one embodiment of the utility model, it is provided between the hydrophobic development unit and the condenser hydrophobic
Secondary steam pipeline is provided with hot water pipeline between the hydrophobic development unit and the hot water mixing tank.
In one embodiment of the utility model, the hydrophobic secondary steam pipeline is located at the one of the hydrophobic development unit
The top of the hydrophobic development unit is arranged in end, and one end setting that the hot water pipeline is located at the hydrophobic development unit is dredged described
The bottom end of water flash vessel.
In one embodiment of the utility model, it is arranged between the water-cooling wall upper collecting chamber and the hot water mixing tank
Have and determines drainage pipeline, it is described to determine drainage pipeline and be located at one end of the water-cooling wall upper collecting chamber water-cooling wall upper collecting chamber is arranged in
Bottom.
On the one hand waste heat comprehensive utilization system according to the present utility model for garbage incinerating power plant is expanded by platoon
Boiler platoon water is separated into platoon secondary steam and spent hot water by container, by hydrophobic development unit by it is hydrophobic be separated into it is hydrophobic secondary
Steam and hot water, platoon secondary steam are passed through deoxygenation in oxygen-eliminating device, and hydrophobic secondary steam is passed through condenser to return to steam/water circulating
In system, to realize the utilization of part of waste heat and the recycling of water；On the other hand, boiler is determined into draining, by platoon dilatation
The hot water after spent hot water and hydrophobic development unit after device comes together in hot water mixing tank, then will be given up by hot water mixing tank control flow
Hot water, which is stablized, introduces screw expander dilatation work done, drives station-service load, and the draining for finishing function introduces power plant's slag removing system, cooling
Clinker, so that boiler blowdown water and hydrophobic waste heat are sufficiently recycled, for driving station-service load, reducing station service power consumption rate.
Detailed description of the invention
The following drawings of the utility model is used to understand the utility model in this as a part of the utility model.Attached drawing
In show the embodiments of the present invention and its description, for explaining the principles of the present invention.
In attached drawing:
Fig. 1 is shown according to the waste heat comprehensive utilization system for garbage incinerating power plant of an embodiment of the present invention
Structural schematic diagram.
Description of symbols:
1 platoon flash vessel
2 hydrophobic development units
3 hot water mixing tanks
4 screw expanders
5 drums
6 oxygen-eliminating devices
7 condensers
8 water-cooling wall upper collecting chambers
9 power plant loads
100 are used for the waste heat comprehensive utilization system of garbage incinerating power plant
Specific embodiment
In the following description, a large amount of concrete details are given more thoroughly to manage in order to provide to the utility model
Solution.It will be apparent, however, to one skilled in the art that the utility model embodiment may not need one or more
These details and be carried out.In other examples, in order to avoid obscuring with the utility model embodiment, for ability
Some technical characteristics well known to domain are not described.
In order to thoroughly understand the utility model embodiment, detailed structure will be proposed in following description.Obviously, this reality
The specific details that those skilled in the art is familiar with are not limited to the execution of new embodiment.The utility model it is preferable
Embodiment is described in detail as follows, however other than these detailed descriptions, the utility model can also have other embodiments.
At present burning power plant boiler blowdown water is expanded boiler platoon water out and platoon using relatively easy
Vessel inlet is connected, and platoon water depressurized in platoon flash vessel, dilatation, heat exchange, is separated into secondary steam and spent hot water, and two
Secondary steam introduces oxygen-eliminating device recovery section platoon hydro-thermal amount and working medium, and spent hot water and boiler drain to be introduced into surely determines row's dilatation
Device, steam and spent hot water are directly discharged into environment after decrease temperature and pressure, and the waste heat in sewerage is largely wasted, and
Certain pollution is caused to environment.In addition the hydrophobic Land use systems of power plant are hydrophobic after hydrophobic development unit decompression, dilatation, point
From for hydrophobic secondary steam and hot water, secondary steam is discharged into condenser throat, hot water introduces condenser well portion, however hydrophobic hot water
It is larger with condenser well portion condensation water temperature difference,Damage larger, capacity usage ratio is lower.
The utility model proposes a kind of waste heat comprehensive utilization system for garbage incinerating power plant based on this, utilizes screw rod
Expanding machine sufficiently recycles boiler blowdown water and hydrophobic waste heat, station-service load is driven, to solve burning power plant pot
Fire grate sewage waste heat recovery rate is low, alleviates the high problem of burning power plant station service power consumption rate.It is practical new to this below with reference to Fig. 1
The waste heat comprehensive utilization system for garbage incinerating power plant of one embodiment of type is described in detail.
As shown in Figure 1, the waste heat comprehensive utilization system 100 provided in this embodiment for garbage incinerating power plant includes connecting
Arrange flash vessel 1, hydrophobic development unit 2, hot water mixing tank 3 and screw expander 4.
Wherein, the platoon flash vessel 1 is connected to the oxygen-eliminating device 6 of the drum 5 of garbage burning boiler and power plant, rubbish
The boiler platoon water of burning boiler introduces the platoon flash vessel 1 by the drum 5, and the platoon flash vessel 1 is from the boiler
Platoon secondary steam and spent hot water are isolated in platoon water, the platoon secondary steam imports in the oxygen-eliminating device 6 for removing
Oxygen in boiler feedwater, the spent hot water import in the hot water mixing tank 3.
Platoon flash vessel 1 is a kind of blowdown expander, is the platoon dirt for the garbage burning boiler that will be imported by drum 5
Water depressurized, dilatation, heat exchange, and flash steam is used as heat source, recovery section boiler blow-off, drainage loss of water heat
The equipment of amount.Platoon flash vessel 1 can use various suitable constructions and configuration commonly used in the art.In the present embodiment, in institute
It states and is provided with platoon waterpipe between drum 5 and the platoon flash vessel 1, the platoon waterpipe is located at the one of the drum 5
End is arranged under the steam water-level line liquid level.By continuous blow off equipment by the maximum furnace of salinity under 5 water level of drum
Water discharge, and imported in the platoon flash vessel via the platoon waterpipe.Further, in 1 He of platoon flash vessel
Platoon secondary steam pipeline is provided between the oxygen-eliminating device 6, between the platoon flash vessel 1 and the hot water mixing tank 3
It is provided with waste heat waterpipe, and the platoon secondary steam pipeline is located at one end setting of the platoon flash vessel 1 described
The top of platoon flash vessel 1, one end that the waste heat waterpipe is located at the platoon flash vessel 1 are arranged in the platoon flash vessel
1 bottom end.
The hydrophobic development unit 2 is configured to hydrophobic be separated into hydrophobic secondary steaming for what is generated in power plant steam-water circulation system
Vapour and hot water, the hydrophobic secondary steam are imported into the condenser 7 in the power plant steam-water circulation system to come back to
In the steam-water circulation system.The so-called hydrophobic condensed water for referring to steam and being generated in pipeline by pressure, temperature decline.
In the present embodiment, in power plant steam-water circulation system each throttle structure, valve etc. it is hydrophobic be introduced by pipeline it is described
In hydrophobic development unit 2, it is separated into hydrophobic secondary steam and hot water by decompression, dilatation, the hydrophobic secondary steam passes through dedicated
Pipeline imports the throat of condenser 7, is condensed into water in condenser 7, comes back in the steam-water circulation system in power plant, described
Hot water imports in hot water mixing tank 3.
The hydrophobic development unit 2 be for by imported in power plant steam-water circulation system it is hydrophobic depressurized, dilatation,
Heat exchange is used to flash steam as heat source, the equipment of recovery section drainage loss of water heat.Hydrophobic development unit 2 can be with
Using various suitable constructions commonly used in the art and configuration.In the present embodiment, in the hydrophobic development unit 2 and the condenser
It is provided with hydrophobic secondary steam pipeline between 7, is provided with hot water between the hydrophobic development unit 2 and the hot water mixing tank 3
Pipeline, and the hydrophobic secondary steam pipeline is located at one end of the hydrophobic development unit 2 and the hydrophobic development unit 2 is arranged in
The bottom end of the hydrophobic development unit 2 is arranged in top, one end that the hot water pipeline is located at the hydrophobic development unit 2.
The hot water mixing tank 3 passes through the water-cooling wall upper collecting chamber 8 of pipeline and the garbage burning boiler, the platoon dilatation
Device 1 is connected to the hydrophobic development unit 2, and the boiler from the water-cooling wall upper collecting chamber 8 drains, surely from the platoon flash vessel
1 spent hot water and hot water from the hydrophobic development unit 2 mix in the hot water mixing tank.
In the present embodiment, it is provided between the water-cooling wall upper collecting chamber 8 and the hot water mixing tank 3 and determines drainpipe
Road, it is described to determine drainage pipeline and be located at one end of the water-cooling wall upper collecting chamber 8 bottom of the water-cooling wall upper collecting chamber 8 is arranged in.Rubbish
The draining of determining of rubbish burning boiler is discharged by periodic blowdown, is drawn from the bottom of water-cooling wall upper collecting chamber 8, is determined draining via described
Pipeline enters in hot water mixing tank 3.
In the present embodiment, the bottom of the hot water mixing tank 3 is provided with hot water discharger (not shown), for controlling
Make the flow for the hot water being discharged from the hot water mixing tank 3.
The screw expander 4 is configured to be connected to the hot water mixing tank 3, the hot water from the hot water mixing tank 3
It drives the yin-yang screw rod of the screw expander to do work, and drives the station-service load 9 in power plant under screw rod rotation.It is described
Screw expander 4 is a kind of positive-displacement engine, mainly utilizes the expansion of hot fluid volume in yin, yang screw rod conduit,
It pushes yin, yang screw rod to rotate round about, realizes that thermal energy is converted into the work done of mechanical energy, the various conjunctions in this field can be used
Suitable structure and configuration.
Further, the screw expander 4 is connected to by pipeline with the defeated slag system of the waterpower in power plant, and being used for will be described
The water to complete is done in screw expander and introduces the defeated slag system of waterpower, using the deslagging as cold source to the garbage burning boiler
Cooling is carried out to transport.
On the one hand waste heat comprehensive utilization system according to the present utility model for garbage incinerating power plant is expanded by platoon
Boiler platoon water is separated into platoon secondary steam and spent hot water by container, by hydrophobic development unit by it is hydrophobic be separated into it is hydrophobic secondary
Steam and hot water, platoon secondary steam are passed through deoxygenation in oxygen-eliminating device, and hydrophobic secondary steam is passed through condenser to return to steam/water circulating
In system, to realize the utilization of part of waste heat and the recycling of water；On the other hand, boiler is determined into draining, by platoon dilatation
The hot water after spent hot water and hydrophobic development unit after device comes together in hot water mixing tank, then will be given up by hot water mixing tank control flow
Hot water, which is stablized, introduces screw expander dilatation work done, drives station-service load, and the draining for finishing function introduces power plant's slag removing system, cooling
Clinker, so that boiler blowdown water and hydrophobic waste heat are sufficiently recycled, for driving station-service load, reducing station service power consumption rate.In addition, root
It can also be reduced to a certain extent to rubbish according to the waste heat comprehensive utilization system for garbage incinerating power plant of the utility model
Pollution of the rubbish power generation by waste combustion factory to environment.
Platoon flash vessel recycling fraction platoon water waste heat is simply provided with burning power plant boiler blowdown water before,
And most of waste heat is directly arranged and is compared to the technique of environment, the waste heat according to the present utility model for garbage incinerating power plant is comprehensive
It closes and is filled the afterheat of hot water after spent hot water, boiler periodical blowdown water and hydrophobic development unit that platoon flash vessel is discharged using system
Divide and recycle, lead-screw expanding machine work done drives station-service load, improves the utilization rate of waste heat of burning power plant, together
When reduce station service power consumption rate.
Unless otherwise defined, the technology of technical and scientific term used herein and the technical field of the utility model
The normally understood meaning of personnel is identical.Term used herein is intended merely to describe specifically to implement purpose, it is not intended that limit
The utility model processed.Terms such as herein presented " settings " can both indicate that a component was attached directly to another portion
Part can also indicate that a component is attached to another component by middleware.The spy described in one embodiment herein
Sign can be applied in combination another embodiment individually or with other feature, unless this feature is in another embodiment
It is not suitable for or is otherwise noted.
The utility model is illustrated through the foregoing embodiment, but it is to be understood that, above-described embodiment is
Purpose for illustrating and illustrating, and be not intended to limit the invention within the scope of described embodiment.Furthermore ability
Field technique personnel are it is understood that the utility model is not limited to above-described embodiment, and introduction according to the present utility model is also
More kinds of variants and modifications can be made, these variants and modifications all fall within the utility model range claimed with
It is interior.The protection scope of the utility model is defined by the appended claims and their equivalents.
Claims (10)
1. a kind of waste heat comprehensive utilization system for garbage incinerating power plant characterized by comprising
Platoon flash vessel, the platoon flash vessel are connected to the oxygen-eliminating device of the drum of garbage burning boiler and power plant, boiler
Platoon water introduces the platoon flash vessel by the drum, and the platoon flash vessel isolates platoon from the boiler platoon water
Secondary steam and spent hot water, the platoon secondary steam import in the oxygen-eliminating device for removing the oxygen in boiler feedwater；
Hydrophobic development unit, the hydrophobic development unit be configured to by generated in power plant steam-water circulation system it is hydrophobic be separated into it is hydrophobic
Secondary steam and hot water, the hydrophobic secondary steam are imported into the condenser in the power plant steam-water circulation system to return again
Into the steam-water circulation system；
Hot water mixing tank, water-cooling wall upper collecting chamber, the platoon flash vessel of the hot water mixing tank and the garbage burning boiler
It is connected to the hydrophobic development unit, the boiler from the water-cooling wall upper collecting chamber drains surely, is from the platoon flash vessel useless
Hot water and hot water from the hydrophobic development unit mix in the hot water mixing tank；
Screw expander, the screw expander is configured to be connected to the hot water mixing tank, from the hot water mixing tank
Hot water drives the yin-yang screw rod of the screw expander to do work, and drives power plant load under screw rod rotation.
2. system according to claim 1, which is characterized in that the bottom of the hot water mixing tank is provided with hot water discharge
Device, for controlling the flow for the hot water being discharged from the hot water mixing tank.
3. system according to claim 1, which is characterized in that the screw expander passes through the waterpower of pipeline and power plant
The connection of defeated slag system introduces the defeated slag system of waterpower for that will do the water to complete in the screw expander, using as cold source
Cooling is carried out to the deslagging of the garbage burning boiler to transport.
4. system according to claim 1, which is characterized in that be provided between the drum and the platoon flash vessel
Platoon waterpipe.
5. system according to claim 4, which is characterized in that the platoon waterpipe is located at one end setting of the drum
Under the steam water-level line liquid level.
6. system according to claim 1, which is characterized in that be arranged between the platoon flash vessel and the oxygen-eliminating device
There is platoon secondary steam pipeline, is provided with waste heat waterpipe between the platoon flash vessel and the hot water mixing tank.
7. system according to claim 6, which is characterized in that the platoon secondary steam pipeline is located at the platoon dilatation
The top of the platoon flash vessel is arranged in one end of device, and the waste heat waterpipe is located at one end setting of the platoon flash vessel
In the bottom end of the platoon flash vessel.
8. system according to claim 1, which is characterized in that be arranged between the hydrophobic development unit and the condenser
There is hydrophobic secondary steam pipeline, is provided with hot water pipeline between the hydrophobic development unit and the hot water mixing tank.
9. system according to claim 8, which is characterized in that the hydrophobic secondary steam pipeline is located at the dewatering capacity-enlarging
The top of the hydrophobic development unit is arranged in one end of device, and one end setting that the hot water pipeline is located at the hydrophobic development unit exists
The bottom end of the hydrophobic development unit.
10. system according to claim 1, which is characterized in that in the water-cooling wall upper collecting chamber and the hot water mixing tank
Between be provided with and determine drainage pipeline, it is described to determine drainage pipeline and be located at one end of the water-cooling wall upper collecting chamber to be arranged in the water-cooling wall
The bottom of upper collecting chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820555818.3U CN208282073U (en) | 2018-04-17 | 2018-04-17 | Waste heat comprehensive utilization system for garbage incinerating power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820555818.3U CN208282073U (en) | 2018-04-17 | 2018-04-17 | Waste heat comprehensive utilization system for garbage incinerating power plant |
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| CN208282073U true CN208282073U (en) | 2018-12-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728525A (en) * | 2021-01-08 | 2021-04-30 | 大唐淮北发电厂 | Blowdown system of drum boiler |
-
2018
- 2018-04-17 CN CN201820555818.3U patent/CN208282073U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112728525A (en) * | 2021-01-08 | 2021-04-30 | 大唐淮北发电厂 | Blowdown system of drum boiler |
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