CN208566664U - A kind of thermoelectricity water co-generation system - Google Patents
A kind of thermoelectricity water co-generation system Download PDFInfo
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- CN208566664U CN208566664U CN201821024800.7U CN201821024800U CN208566664U CN 208566664 U CN208566664 U CN 208566664U CN 201821024800 U CN201821024800 U CN 201821024800U CN 208566664 U CN208566664 U CN 208566664U
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The utility model relates to a kind of thermoelectricity water co-generation systems, it include: boiler, Turbo-generator Set, the first desalination plant, the second desalination plant, oxygen-eliminating device, heat exchanger and steam exhaust recovering device, the steam outlet of boiler and the vapor inlet port of Turbo-generator Set connect；The steam drain of Turbo-generator Set is connect with the vapor inlet port of the first desalination plant；The middle section steam extraction delivery outlet of Turbo-generator Set is connect with the vapor inlet port of the second desalination plant；The output end of oxygen-eliminating device and the water inlet of boiler connect, and the input terminal of oxygen-eliminating device connects water inlet pipe；Oxygen-eliminating device is provided with steam inlet and steam drain；The delivery outlet of the connection of the sewage draining exit of the input port of steam exhaust recovering device and the steam drain of oxygen-eliminating device and boiler, steam exhaust recovering device connects steam exhaust pipe；First heat exchanger channels of heat exchanger connect water inlet pipe, and the second heat exchanger channels connect steam exhaust pipe.The thermoelectricity water co-generation system can make full use of thermal energy, reduce energy consumption.
Description
Technical field
The utility model relates to electricity-water cogeneration technical field, in particular to a kind of thermoelectricity water co-generation system.
Background technique
The matched two 150T atmosphere-type thermodynamic oxygen removers of gas fired-boiler in hot electricity-water cogeneration unit, steam exhaust drain into atmosphere outside
In, hour displacement about 1.5t；The system of boiler is hydrophobic and fixed drain is directly discharged to sewage conduct；Company is drained into platoon expansion
Container, the secondary steam after flash distillation enter oxygen-eliminating device and are used, and sewerage, which is incorporated to, after flash distillation determines heat-extraction system, hour always outer draining
Measure about 5.2t.Gas fired-boiler deaerator exhaust and about 100 DEG C of boiler blowdown water, cause heat-energy losses, while deoxygenation after discharge
Water quality is better than demineralized water after the condensation of device steam discharge, causes resources loss after discharge.Boiler feed vapour is by the main vapour of boiler through desuperheat
Feed is depressurized, the waste of the high-quality energy is not only caused while decreasing middle pressure steam to Turbo-generator Set and generating electricity to use and steam
Vapour, while reducing generated energy.
The thermal energy of hot electricity-water cogeneration unit and water resource, which fail to recycle, in the prior art causes energy consumption and wave
Take, does not meet the demand of energy conservation production.
Utility model content
This application provides a kind of thermoelectricity water co-generation system, solves or part solves hot electricity-water cogeneration in the prior art
The thermal energy of unit fails the technical issues of recycling.
This application provides a kind of thermoelectricity water co-generation systems, comprising: boiler, Turbo-generator Set, the first sea water desalination dress
It sets, the second desalination plant, oxygen-eliminating device, heat exchanger and steam exhaust recovering device, in which:
The steam outlet of the boiler is connect with the vapor inlet port of the Turbo-generator Set；
The steam drain of the Turbo-generator Set is connect with the vapor inlet port of first desalination plant；
The vapor inlet port of the middle section steam extraction delivery outlet of the Turbo-generator Set and second desalination plant connects
It connects；
The output end of the oxygen-eliminating device is connect with the water inlet of the boiler, and the input terminal of the oxygen-eliminating device connects water inlet
Pipe；The oxygen-eliminating device is provided with steam inlet and steam drain；
The input port of the steam exhaust recovering device is connect with the sewage draining exit of the steam drain of the oxygen-eliminating device and the boiler, institute
State the delivery outlet connection steam exhaust pipe of steam exhaust recovering device；
First heat exchanger channels of the heat exchanger connect the water inlet pipe, and the second heat exchanger channels connect the steam exhaust pipe.
Preferably, second heat exchanger channels of the heat exchanger tube are connected to return pipe, the return pipe connection producing line
Water transfer pipe network.
Preferably, further include extraction regulation device, the extraction regulation device setting the Turbo-generator Set with
Between second desalination plant, the steam extraction amount that the middle section steam extraction delivery outlet is sent out is adjusted.
Preferably, the boiler is gas boiler.
Preferably, the steam outlet of the boiler connects the steam of the Turbo-generator Set by the first steam pipe
Input port；The steam outlet of the boiler connects the steam inlet of the oxygen-eliminating device by the second steam pipe.
Preferably, being provided with temperature-decreased pressure reducer on second steam pipe.
Preferably, the steam inlet of the oxygen-eliminating device is also connected with low pressure steam pipe, the low pressure steam pipe is connected to producing line
Low-pressure steam pipe network.
Preferably, the steam outlet of the boiler connects the steam pipe network of producing line by third steam pipe.
Preferably, the vapor inlet port of second desalination plant is also connected to the low-pressure steam of producing line by pipeline
Pipe network.
One or more technical solutions provided herein, have at least the following technical effects or advantages:
Due to using by boiler, Turbo-generator Set, the first desalination plant, the second desalination plant, deoxygenation
The thermoelectricity water co-generation system of device, heat exchanger and steam exhaust recovering device composition, the high-quality steam that boiler generates supply turbine generator
Unit carries out power generation operation, steam discharge the first desalination plant of supply that Turbo-generator Set generates, in Turbo-generator Set
Section steam extraction supplies the second desalination plant, and steam exhaust recovering device is collected the waste heat of deaerator exhaust and boiler blow-off, will be arranged
Vapour and waste heat heat the boiler feed water in water inlet pipe by heat exchanger, and the high-quality steam for guaranteeing that boiler generates to greatest extent is defeated
Turbo-generator Set is arrived out, and steam needed for oxygen-eliminating device can select external pressure common steam, realize energy ladder benefit
With；Deaerator exhaust and boiler blow-off are subjected to waste heat recycling, heat exchange process is carried out after recycling, reduces the wave of exhausted spare heat
Take.In this way, the thermal energy for efficiently solving hot electricity-water cogeneration unit in the prior art fails the technical issues of recycling, realize
Thermal energy is made full use of, the technical effect of energy consumption is reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of thermoelectricity water co-generation system provided by the embodiments of the present application.
(component that each label represents in diagram successively are as follows: 1 steam exhaust recovering device, 2 water inlet pipes, 3 heat exchangers, 4 return pipes, 5
Oxygen-eliminating device, 6 low pressure steam pipes, 7 first desalination plants, 8 boilers, 9 temperature-decreased pressure reducers, 10 Turbo-generator Sets, 11 steam extractions
Regulating device, 12 second desalination plants)
Specific embodiment
The embodiment of the present application provides a kind of thermoelectricity water co-generation system, solves or part solves thermoelectricity in the prior art
The thermal energy and water resource of water coproduction unit fail the technical issues of recycling, by setting by boiler, Turbo-generator Set, the
The hot electricity-water cogeneration system of one desalination plant, the second desalination plant, oxygen-eliminating device, heat exchanger and steam exhaust recovering device composition
System, the high-quality steam supply Turbo-generator Set that boiler generates carry out power generation operation, and the steam discharge that Turbo-generator Set generates supplies
To the first desalination plant, the middle section steam extraction of Turbo-generator Set supplies the second desalination plant, and steam exhaust recovering device is received
The blowdown for collecting the steam discharge and boiler of oxygen-eliminating device, realizes and makes full use of thermal energy, reduce the technical effect of energy consumption.
Referring to attached drawing 1, this application provides a kind of thermoelectricity water co-generation systems, comprising: boiler 8, Turbo-generator Set 10,
One desalination plant 7, the second desalination plant 12, oxygen-eliminating device 5, heat exchanger 3 and steam exhaust recovering device 1, in which:
The steam outlet of boiler 8 is connect with the vapor inlet port of Turbo-generator Set 10；The row of Turbo-generator Set 10
Steam ports is connect with the vapor inlet port of the first desalination plant 7；The middle section steam extraction delivery outlet of Turbo-generator Set 10 and second
The vapor inlet port of desalination plant 12 connects；The output end of oxygen-eliminating device 5 is connect with the water inlet of boiler 8, oxygen-eliminating device 5 it is defeated
Enter end connection water inlet pipe 2, water inlet pipe 2 is for conveying boiler feed water；Oxygen-eliminating device 5 is provided with steam inlet and steam drain；Steam exhaust is returned
The input port of receiving apparatus 1 is connect with the steam drain of the steam drain of oxygen-eliminating device 5 and boiler 8, the delivery outlet connection of steam exhaust recovering device 1
Steam exhaust pipe；First heat exchanger channels of heat exchanger 3 connect water inlet pipe 2, and the second heat exchanger channels connect steam exhaust pipe.
Wherein, the high-quality steam supply Turbo-generator Set 10 that boiler 8 generates carries out power generation operation, Turbo-generator Set
10 steam discharges generated supply the first desalination plant 7, and the middle section steam extraction of Turbo-generator Set 10 supplies the second sea water desalination dress
12 are set, steam exhaust recovering device 1 collects the blowdown of the steam discharge and boiler 8 of oxygen-eliminating device 5, and steam discharge and waste heat are added by heat exchanger 3
Boiler feed water in hot water inlet pipe 2, the high-quality steam for guaranteeing that boiler 8 generates to greatest extent are output to Turbo-generator Set
10, and steam needed for oxygen-eliminating device 5 can select external pressure common steam, realize that energy ladder utilizes；By 5 row of oxygen-eliminating device
Vapour and 8 blowdown of boiler carry out heat recovery, and 8 water supply of heat exchange process heating boiler is carried out after recycling, reduce steam discharge and blowdown
The waste of waste heat.First desalination plant 7 is from the second desalination plant 12 due to carrying out difference using different vapour sources
The sea water desalination of mode produces, and realizes the reasonable utilization of different quality steams.
Further, the second heat exchanger channels of heat exchanger tube 3 are connected to return pipe 4, and return pipe 4 is connected to the water transfer pipe network of producing line,
The steam discharge that steam exhaust recovering device 1 is sent out cools down in the second heat exchanger channels to be condensed and generates condensed water, and return pipe 4 is again by condensed water
Recycling be sent into water transfer pipe network, be subsequently used in producing line water supply, the abundant recycling of water resource is achieved, moreover, oxygen-eliminating device 5 and
The condensed water quality of steam discharge that boiler 8 generates is higher, is able to satisfy the water quality demand of most of water use sector.
Further, in existing thermoelectricity water co-generation system, since steam bleeding system is without control steam extraction amount is adjusted, steamer is caused
Steam extraction amount of the generating set 10 under rated steam inlet operating condition is bigger than normal, displacement is less than normal, to cause Turbo-generator Set 10 mating
Desalting seawater through multi-effect evaporation device 7 production water it is insufficient；Meanwhile steam extraction amount it is bigger than normal easily lead to steam turbine differential expansion, axis vibration etc. operation
Con trolling index deteriorates and then jeopardizes unit operational safety.Keep steam extraction, steam discharge opposite for this purpose, being forced reduction steam turbine throttle flow in operation
Balanced or stopping steam extraction is to reach steam discharge rated condition, but the middle pressure steam that this method of operation generates boiler 8 is from whole
It is generated electricity into steam turbine and sends low-pressure steam pipe network outside through pressure and temperature reducing, not only lost generating capacity and also cause high-quality steam
Waste.
Therefore, the thermoelectricity water co-generation system of the application further includes extraction regulation device 11, and the setting of extraction regulation device 11 exists
Between Turbo-generator Set 10 and the second desalination plant 12, the steam extraction amount that steam extraction delivery outlet in middle section is sent out, steam extraction tune are adjusted
Regulating device 11 can be adjusted valve opening according to extraction flow and exhaust steam flow numerical value, increase or reduce steam extraction amount to control
Steam extraction amount and steam discharge are flux matched, then increase generated energy, the optimization desalination plant operation of Turbo-generator Set 10.
Further, boiler 8 is gas boiler.The steam outlet of boiler 8 connects turbine generator by the first steam pipe
The vapor inlet port of unit 10；The steam outlet of boiler 8 by the second steam pipe connect oxygen-eliminating device 5 steam inlet, second
Temperature-decreased pressure reducer 9 is provided on steam pipe.The steam outlet of boiler 8 is connected to oxygen-eliminating device 5, and setting subtracts therebetween
Temperature-decreased pressure reducer 9 guarantees that the steam outlet of boiler has a plurality of access, and the steam for generating boiler 8 can not only be sent into steamer hair
Motor group 10 can also be sent into oxygen-eliminating device 5, and in actual production, the high-quality steam that can guarantee that boiler 8 generates as far as possible is all defeated
Turbo-generator Set 10 is arrived out carries out power generation production.
Further, the steam inlet of oxygen-eliminating device 5 is also connected with low pressure steam pipe 6, and low pressure steam pipe 6 is connected to the low pressure of producing line
Steam pipe network, low-pressure steam pipe network is interior to convey low-pressure steam, which can be subtracted by the high-quality steam that boiler 8 generates
It is obtained after temperature decompression, can also be produced and be obtained by other steam generating devices, guarantee that the steam source of oxygen-eliminating device 5 has a variety of choosings
It selects, while also increasing the circulation path of the steam outlet of boiler 8.The steam outlet of boiler 8 can also be steamed by third
Steam pipe connects the steam pipe network of producing line, and the middle pressure steam of high-quality is sent into steam pipe network by third steam pipe, and it is right in producing line to supply
Middle pressure steam has the steam user of demand.
Further, the vapor inlet port of the second desalination plant 12 is also connected to the low pressure steam pipe of producing line by pipeline
Net guarantees that the steam source of the second desalination plant 12 has multiple choices, i.e. the second desalination plant 12 can be used
The middle section steam extraction of Turbo-generator Set 10 is produced, and the low-pressure steam that the submitting of low-pressure steam pipe network also can be used is given birth to
It produces.
Therefore, which passes through more than the high temperature that steam exhaust recovering device 1 discharges gas fired-boiler 8, oxygen-eliminating device 5
Heat collects recycling, then heats to boiler feedwater, oxygen-eliminating device 5 is substituted for vapour by the high-quality steam that boiler 8 generates
The low-pressure steam of low-pressure steam pipe network can guarantee that high-quality steam is transported to Turbo-generator Set 10 to greatest extent, realize
Energy ladder utilizes；The steam discharge of oxygen-eliminating device 5 and boiler 8 is recycled, its outlet atmosphere is avoided, carries out heat exchange after recycling
Processing reduces the waste of exhausted spare heat, and the condensed water recycling that heat exchange generates is sent into water transfer pipe network, is subsequently used in producing line confession
Water realizes the abundant recycling of water resource；Extraction regulation device 11 can be according to extraction flow and exhaust steam flow numerical value to valve
Aperture is adjusted, and increases or to reduce steam extraction amount flux matched with steam discharge to control steam extraction amount, increase generated energy, optimization sea water desalination
Device operation.
It is illustrated below with economic benefit of the production instance to the thermoelectricity water co-generation system of certain enterprise:
1,5 steam discharge condensing hot air furnace of oxygen-eliminating device, heat recovery, 5 steam discharge of oxygen-eliminating device are calculated according to 0.3%, and boiler 8 averagely steams
Hair amount is 120t/h, and condensed water presses 4 yuan of calculating per ton, year condensed water expense 120 × 2 × 24 × 365 × 0.003 × 4 can be recycled
=25228.8 yuan/year.
2,5 exhaust steam heat of oxygen-eliminating device and the continuous exhaust steam heat of boiler 8 are recycled, after steam exhaust recovering device 1 is gone into operation, oxygen-eliminating device 5
Steam consumption is average to reduce 1.5t per hour, and low-pressure steam is calculated according to 100 yuan/ton, can save steam expense in year are as follows: 1.5 × 24
× 365 × 100=1314000 member/year；133.92 ten thousand yuan are added up to above.
3, the high-quality steam that boiler 8 generates is replaced by outer net low-pressure steam and uses vapour as oxygen-eliminating device 5, replaced
High-quality steam as Turbo-generator Set 10 generate electricity, quantity of steam 6t/h, steam-electric power amount per ton is about 175kWh, unit
Years runing time about 8000 hours, year can increase generated energy are as follows: 6 × 175 × 8000=840, ten thousand kWh, bring benefits 840 ×
Ten thousand yuan of 0.3394=285.09.
4, in the case where the total throttle flow of Turbo-generator Set 10 is constant, by 11 control action of extraction regulation device, often
It is 14,000,000 kWh that platform unit, which can increase back pressure steam discharge 10t/h, Nian Zengjia generated energy, and bring benefits 1400 × 0.3394=
475.16 ten thousand yuan.
It follows that the thermoelectricity water co-generation system of the application, structure is simple, and equipment cost is low, has good economic effect
Benefit is implemented convenient for industry is a large amount of.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of thermoelectricity water co-generation system characterized by comprising boiler, Turbo-generator Set, the first desalination plant,
Second desalination plant, oxygen-eliminating device, heat exchanger and steam exhaust recovering device, in which:
The steam outlet of the boiler is connect with the vapor inlet port of the Turbo-generator Set；
The steam drain of the Turbo-generator Set is connect with the vapor inlet port of first desalination plant；
The middle section steam extraction delivery outlet of the Turbo-generator Set is connect with the vapor inlet port of second desalination plant；
The output end of the oxygen-eliminating device is connect with the water inlet of the boiler, and the input terminal of the oxygen-eliminating device connects water inlet pipe；Institute
It states oxygen-eliminating device and is provided with steam inlet and steam drain；
The input port of the steam exhaust recovering device is connect with the sewage draining exit of the steam drain of the oxygen-eliminating device and the boiler, described weary
The delivery outlet of recovery device for steam connects steam exhaust pipe；
First heat exchanger channels of the heat exchanger connect the water inlet pipe, and the second heat exchanger channels connect the steam exhaust pipe.
2. thermoelectricity water co-generation system as described in claim 1, which is characterized in that second heat exchanger channels of the heat exchanger tube
It is connected to return pipe, the water transfer pipe network of the return pipe connection producing line.
3. thermoelectricity water co-generation system as described in claim 1, which is characterized in that further include extraction regulation device, the steam extraction
Regulating device is arranged between the Turbo-generator Set and second desalination plant, adjusts the middle section steam extraction output
The steam extraction amount that mouth is sent out.
4. thermoelectricity water co-generation system as described in claim 1, which is characterized in that the boiler is gas boiler.
5. thermoelectricity water co-generation system as described in claim 1, which is characterized in that the steam outlet of the boiler passes through first
Steam pipe connects the vapor inlet port of the Turbo-generator Set；The steam outlet of the boiler is connected by the second steam pipe
The steam inlet of the oxygen-eliminating device.
6. thermoelectricity water co-generation system as claimed in claim 5, which is characterized in that be provided with desuperheat on second steam pipe and subtract
Depressor.
7. thermoelectricity water co-generation system as claimed in claim 5, which is characterized in that the steam inlet of the oxygen-eliminating device is also connected with low
Press steam pipe, the low-pressure steam pipe network of the low pressure steam pipe connection producing line.
8. thermoelectricity water co-generation system as claimed in claim 5, which is characterized in that the steam outlet of the boiler passes through third
The steam pipe network of steam pipe connection producing line.
9. thermoelectricity water co-generation system as described in claim 1, which is characterized in that the steam of second desalination plant is defeated
Entrance is also connected to the low-pressure steam pipe network of producing line by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821024800.7U CN208566664U (en) | 2018-06-29 | 2018-06-29 | A kind of thermoelectricity water co-generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821024800.7U CN208566664U (en) | 2018-06-29 | 2018-06-29 | A kind of thermoelectricity water co-generation system |
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| Publication Number | Publication Date |
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| CN208566664U true CN208566664U (en) | 2019-03-01 |
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ID=65488578
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| CN201821024800.7U Active CN208566664U (en) | 2018-06-29 | 2018-06-29 | A kind of thermoelectricity water co-generation system |
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| CN (1) | CN208566664U (en) |
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2018
- 2018-06-29 CN CN201821024800.7U patent/CN208566664U/en active Active
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