CN206817432U - A kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas - Google Patents
A kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas Download PDFInfo
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- CN206817432U CN206817432U CN201720592017.XU CN201720592017U CN206817432U CN 206817432 U CN206817432 U CN 206817432U CN 201720592017 U CN201720592017 U CN 201720592017U CN 206817432 U CN206817432 U CN 206817432U
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Abstract
A kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas is the utility model is related to, the recovering system includes flue and the flue gas waste heat boiler, steam superheater, the economizer that are arranged in flue；Flue gas waste heat boiler is connected by pipeline with steam superheater, steam superheater connection condensing steam turbine generator, and exhaust outlet connection condenser, condenser and the economizer of condensing steam turbine generator are connected, and the delivery port of economizer is connected with flue gas waste heat boiler.The utility model carries out three-level effectively heat exchange by economizer, waste heat boiler and steam superheater and ardealite Sulphuric acid flue-gas temperature is reduced into 150 DEG C 180 DEG C by 300 DEG C 350 DEG C, and heat is fully reclaimed, waste heat is converted into electric energy, increased operation rate, generated energy increase, can save energy more than 40%.
Description
Technical field
A kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas is the utility model is related to, belongs to environment
Protection is administered and generating production technical field.
Background technology
In the prior art, the processing of ardealite Sulphuric acid flue gas is that 300-350 DEG C of flue gas is directly entered into high energy scrubber,
With from thin acid pump diluted acid mass-and heat-transfer, realize flue gas is washed, cooled, dedusting (including sublimed sulfur).Pass through gas again
Cooling tower further cools with weak acid scrubbing, dedusting.Temperature reaches less than 45 DEG C, and then flue gas passes through two-stage electricity demisting, enters one
Step removes sublimed sulfur, gypsum, the water smoke drop of flue gas entrainment, then goes drying tower to be dried to flue gas drying.In addition, from high-efficient washing
The diluted acid that device, cooling tower come out follows by with being then sent through after recirculated water heat exchange cooling, filter filtering solid contaminants by thin acid pump
Ring high energy scrubber, circulated with cooling tower.
Above technology causes flue gas to enter, and cleaning system inlet temperature is very high, and 300-350 DEG C of flue gas heat is not only by vain
Slattern, also to consume recirculated water and be cooled, do not meet the scientific idea saved energy consumption and recycled.
At present, the heat recovery technology on every profession and trade reports more, Chinese patent CN105275515A (application numbers
201510659621.5) disclose a kind of waste heat of coke-oven flue gas and dry coke quenching waste heat coupled electricity-generation system and its coupled electricity-generation side
Method, including：Dry coke quenching waste-heat recovery device, it includes interconnected coke dry quenching furnace and dry coke quenching residual heat boiler, dry coke quenching waste heat
Boiler internal include set gradually dry coke quenching secondary superheater, cork dry quenching disposable superheater, the first evaporator, second evaporation
Device, waste heat of coke-oven flue gas superheater and dry coke quenching economizer；Smoke waste heat recycling device for coke oven includes coke oven, is connected with coke oven
Coke oven flue gas flue collector, the connection of coke oven flue gas flue collector set gradually waste heat of coke-oven flue gas economizer, waste heat of coke-oven flue gas evaporation
Device, coke oven flue gas air-introduced machine and coke oven flue gas chimney；Turbo-generator Set passes through condensing unit and dry coke quenching waste-heat recovery device
And smoke waste heat recycling device for coke oven forms loop.The utility model is suitable only for more than 800 DEG C dry coke quenching residual heat boilers and produces heat
Amount and coke oven produce the utilization that flue-gas temperature is more than 700 DEG C of heats, and whether smoke components, which damage flue etc., does not limit.
But there is not the system and device for being exclusively used in ardealite Sulphuric acid flue gas heat recovery also, ardealite relieving haperacidity enterprise is anxious
Need a kind of multistage heat absorption, organic efficiency is high, energy conservation and consumption reduction effects are notable, the low residual heat system device of cost of investment.
Utility model content
In view of the shortcomings of the prior art, the utility model is provided a kind of used heat to be generated electricity using ardealite Sulphuric acid flue gas and returned
System and device is received, ardealite Sulphuric acid flue gas is passed through economizer, waste heat boiler and steam superheating by the WHRS device
Device carries out three-level and effectively exchanged heat, and can save energy more than 40%, and producing steam using the flue gas heat of recovery is used for Turbo-generator Set
Generate electricity, meanwhile, the temperature that flue gas enters cleaning system entrance is reduced, significantly reduces cleaning system diluted acid internal circulating load, diluted acid
Cooling water circulation amount, energy conservation and consumption reduction effects are notable, so as to substantially increase the economic benefit of manufacturing enterprise.
The technical solution of the utility model is as follows：
A kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas, including flue and be arranged in flue
Flue gas waste heat boiler, steam superheater, economizer；Flue gas waste heat boiler is connected by pipeline with steam superheater, steam mistake
Hot device connects condensing steam turbine generator, and exhaust outlet connection condenser, condenser and the economizer of condensing steam turbine generator connect
Connect, the delivery port of economizer is connected with flue gas waste heat boiler.
It is preferable according to the utility model, it is provided with oxygen-eliminating device, condensing on the pipeline between the condenser and economizer
The outlet of device is connected with the upper end side of oxygen-eliminating device；Oxygen-eliminating device upper end opposite side connects the desalted water supplement of extraneous water charging system
Valve；The lower end of oxygen-eliminating device is connected by boiler feed pump with economizer.
It is further preferred that steam pressure regulating valve and steaming are provided between the steam superheater and flue gas waste heat boiler
Stripping temperature regulating valve, to carry out the regulation of pressure and temperature.
It is further preferred that between the steam superheater and condensing steam turbine generator, the boiler feed pump with save
1-2 Valve controlling is respectively provided between coal device, between the economizer and flue gas waste heat boiler.
It is preferable according to the utility model, it is connected with high energy scrubber, smoke cooling tower in the end of flue.
Preferable according to the utility model, flue gas waste heat boiler is located at the water in the flue being built into refractory material for tube bank
Tubular type waste heat boiler, it can be bought from Changzhou Ya Nuo energy-saving equipments Co., Ltd.It is preferable according to the utility model, condensing-type steamer
Generator, model N0.5~N1.6,0.5~1.6MW of power, pressure≤3.0Mpa, exhaust steam pressure 0.008Mpa, rotating speed 6500r/
min.It can be bought from Shandong Qingneng Power Co., Ltd..
Its specific workflow is described below：
It is the flue gas (300-350 DEG C of temperature) from ardealite Sulphuric acid in flue, absorbs waste heat through flue gas waste heat boiler,
After being exchanged heat, flue gas waste heat boiler produces 1.0MPa saturated vapors and leads to steam superheater, and steam superheater presses 1.0MPa
Saturated steam under power is heated into 280 DEG C of overheated steams under relevant pressure；The superheated water come out from steam superheater steams
Gas dragging condensing steam turbine generator generates electricity, and exhaust steam out enters condenser, and exhaust steam is further by recirculated water in condenser
After being cooled to condensed water, lead to oxygen-eliminating device, simultaneity factor loss water is supplemented via desalted water replenishment valve, removed through oxygen-eliminating device
After oxygen, economizer is pumped into through boiler feed pump, economizer is absorbed in flue is passed through fume waste heat pot after fume afterheat heating feedwater
Stove, flue gas waste heat boiler absorbs waste heat in flue, after being exchanged heat, produces 1.0MPa saturated vapors and leads to steam superheater, according to
Secondary circulation, complete the process that whole system recycles used heat.
Temperature is reduced to 150-180 DEG C to flue gas after three-level heat exchange utilizes in flue, and it is efficient now to sequentially enter flue gas again
After washer, smoke cooling tower, temperature is down to less than 45 DEG C, then by two-stage electricity demisting, further removes flue gas entrainment
Sublimed sulfur, gypsum, water smoke drop, finally go drying tower to be dried to flue gas drying.
The utility model is 1.0MPa by controlling steam pressure, to control flue-gas temperature not cause pot more than dew point
Stove and superheater corrosion of device and piping.The utility model is acidproof stainless by the economizer near dew point spray
Steel, to solve the short-life problem of equipment corrosion.
The beneficial effects of the utility model are：
1. the utility model carries out three-level effectively heat exchange by ardealite system by economizer, waste heat boiler and steam superheater
Sulfuric acid flue-gas temperature is reduced to 150 DEG C -180 DEG C by 300 DEG C -350 DEG C, and fully reclaims heat, and waste heat is converted into electric energy, carried
High usage, generated energy increase, can save energy more than 40%.
2. the three-level heat recovery that the utility model passes through flue gas so that the inlet temperature for entering follow-up high energy scrubber is big
It is big to reduce, gas cleaning load is reduced, lowers high energy scrubber, cooling tower diluted acid internal circulating load, greatly reduces recirculated cooling water
Consumption.
3. it is 1.0MPa by controlling steam pressure, to control flue-gas temperature not cause boiler and overheat more than dew point
Device corrosion of device and piping, equipment and the useful life of pipeline are extended, save the frequent replacement cost of equipment.
Brief description of the drawings
Fig. 1 is the WHRS device flow chart of the present utility model to be generated electricity using ardealite Sulphuric acid flue gas.
Wherein, 1, flue；2nd, steam superheater；3rd, flue gas waste heat boiler；4th, economizer；5th, oxygen-eliminating device；6th, condensing-type vapour
Turbine generator；7th, condenser；8th, boiler feed pump；9th, flue gas high energy scrubber；10th, smoke cooling tower；11st, steam pressure is adjusted
Valve；12nd, vapor (steam) temperature regulating valve；13rd, desalted water replenishment valve；14th, 300 DEG C of -350 DEG C of ardealite Sulphuric acid flue gases of temperature；15th, it is warm
Spend 150 DEG C of -180 DEG C of flue gases.
Embodiment
The utility model is described in detail with reference to embodiment, the utility model device therefor is this area
Conventional equipment, wherein flue gas waste heat boiler are located at the waterpipe type waste heat boiler in the flue being built into refractory material for tube bank, can
Bought from Changzhou Ya Nuo energy-saving equipments Co., Ltd.Condensing steam turbine generator, model N0.5~N1.6, power 0.5~
1.6MW, pressure≤3.0Mpa, exhaust steam pressure 0.008Mpa, rotating speed 6500r/min.Can be from the limited public affairs of Shandong green grass or young crops motility share
Department's purchase.
The utility model can also have other embodiment, all technologies formed using equivalent substitution or equivalence replacement mode
Scheme, all fall within the requires of the utility model protection within the scope of.
Embodiment 1
A kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas of the present utility model, including flue 1,
Steam superheater 2, flue gas waste heat boiler 3, economizer 4, oxygen-eliminating device 5, condensing steam turbine generator 6, condenser 7, boiler feedwater
Pump 8；The steam superheater 2, flue gas waste heat boiler 3, economizer 4 are arranged in flue 1.
Flue gas waste heat boiler 3 is connected by pipeline with steam superheater 2, and steam superheater 2 connects condensing-type turbine generator
Machine 6, the exhaust outlet connection condenser 7 of condensing steam turbine generator 6, the outlet of condenser 7 are connected with the upper end side of oxygen-eliminating device 5
It is logical；The upper end opposite side of oxygen-eliminating device 5 connects the desalted water replenishment valve 13 of extraneous water charging system；The lower end of oxygen-eliminating device 5 and boiler feedwater
Pump 8 is connected；The outlet of boiler feed pump 8 is connected with economizer 4, and the delivery port of economizer 4 is connected with flue gas waste heat boiler 3.
Its specific workflow is described below：
Into in flue 1 being from ardealite Sulphuric acid flue gas 14, temperature is 300-350 DEG C, through flue gas waste heat boiler 3
Waste heat is absorbed, after being exchanged heat, 1.0MPa saturated vapors is produced and leads to steam superheater 2, steam superheater 2 is by 1.0MPa pressure
Under saturated steam be heated into 280 DEG C of overheated steams under relevant pressure, the overheated steam come out from steam superheater 2
Dragging condensing steam turbine generator 6 generates electricity, and exhaust steam out enters condenser 7, and exhaust steam is further by recirculated water in condenser 7
After being cooled to condensed water, lead to oxygen-eliminating device 5, system loss water is supplemented via desalted water replenishment valve 13；Removed through oxygen-eliminating device 5
After oxygen, economizer 4 is pumped into by boiler feed pump 8, economizer 4, which absorbs, to be passed through flue gas after fume afterheat heating feedwater in flue 1 and give up
Heat boiler 3, flue gas waste heat boiler 3 absorbs waste heat in flue 1, after being exchanged heat, produces 1.0MPa saturated vapors and leads to steam mistake
Hot device 2, is circulated successively, is completed whole system and is recycled used heat process.
The utility model carries out three-level effectively heat exchange by ardealite by economizer 4, waste heat boiler 3 and steam superheater 2
Sulphuric acid flue-gas temperature is reduced to 150 DEG C -180 DEG C by 300 DEG C -350 DEG C, fully reclaims heat, and waste heat is converted into electric energy,
Increase operation rate, generated energy increase, can save energy more than 40%.
Temperature is reduced to 150-180 DEG C to ardealite Sulphuric acid flue gas 14 after three-level heat exchange recycles in flue, now
The flue gas 15 that temperature out of flue out is 150-180 DEG C sequentially enters flue gas high-efficient washing tower 9, smoke cooling tower 10 again
Afterwards, temperature is down to less than 45 DEG C, then by two-stage electricity demisting, further removes sublimed sulfur, gypsum, water smoke that flue gas is carried secretly
Drop, drying tower is finally gone to be dried to flue gas drying.
The utility model is 1.0MPa by controlling steam pressure, to control flue-gas temperature not cause pot more than dew point
Stove and superheater corrosion of device and piping；Simultaneously by carrying out spraying acid-resistant stainless steel to the economizer near dew point, to solve
The certainly short-life problem of equipment corrosion.
Embodiment 2
As described in Example 1, except that being provided with steam between the steam superheater 2 and flue gas waste heat boiler 3
Pressure-regulating valve 11 and vapor (steam) temperature regulating valve 12, to carry out the regulation of pressure and temperature.
Embodiment 3
As described in Example 2, except that, two are provided between the steam superheater 2 and condensing steam turbine generator 6
Individual valve；1 valve is provided between the boiler feed pump 8 and economizer 4；Between the economizer 4 and flue gas waste heat boiler 3
There are two valves.
Claims (4)
1. a kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas, including flue and be arranged in flue
Flue gas waste heat boiler, steam superheater, economizer；Flue gas waste heat boiler is connected by pipeline with steam superheater, steam superheating
Device connects condensing steam turbine generator, and exhaust outlet connection condenser, condenser and the economizer of condensing steam turbine generator connect,
The delivery port of economizer is connected with flue gas waste heat boiler.
2. a kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas as claimed in claim 1, its feature
It is, oxygen-eliminating device, the outlet of condenser and the upper end one of oxygen-eliminating device is provided with the pipeline between the condenser and economizer
Side is connected；Oxygen-eliminating device upper end opposite side connects the desalted water replenishment valve of extraneous water charging system；The lower end of oxygen-eliminating device passes through boiler
Feed pump is connected with economizer.
3. a kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas as claimed in claim 1 or 2, it is special
Sign is, steam pressure regulating valve and vapor (steam) temperature regulating valve are provided between the steam superheater and flue gas waste heat boiler.
4. a kind of WHRS device to be generated electricity using ardealite Sulphuric acid flue gas as claimed in claim 1 or 2, it is special
Sign is, between the steam superheater and condensing steam turbine generator, between the boiler feed pump and economizer, the province
1-2 Valve controlling is respectively provided between coal device and flue gas waste heat boiler.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838776A (en) * | 2019-02-22 | 2019-06-04 | 东方菱日锅炉有限公司 | Steam-water circulation system for waste incineration and generating electricity |
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- 2017-05-25 CN CN201720592017.XU patent/CN206817432U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109838776A (en) * | 2019-02-22 | 2019-06-04 | 东方菱日锅炉有限公司 | Steam-water circulation system for waste incineration and generating electricity |
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