CN205897182U - A wet flue gas heat transfer system for power boiler - Google Patents
A wet flue gas heat transfer system for power boiler Download PDFInfo
- Publication number
- CN205897182U CN205897182U CN201620900555.6U CN201620900555U CN205897182U CN 205897182 U CN205897182 U CN 205897182U CN 201620900555 U CN201620900555 U CN 201620900555U CN 205897182 U CN205897182 U CN 205897182U
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- Prior art keywords
- flue gas
- heat
- exhaust gases
- gases passes
- boiler
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Abstract
The utility model provides a wet flue gas heat transfer system for power boiler, exhaust gas heat exchanging system includes boiler system and heat transfer system, boiler system includes boiler, first flue gas passageway, edge first flue gas passageway meet in proper order first desulfurizing tower, an electric bag dust catcher and first draught fan, second flue gas passageway and edge second flue gas passageway meet in proper order second desulfurizing tower, the 2nd electric bag dust catcher and second draught fan, exhaust gas heat exchanging system includes desulfurizing tower, wet flue gas heat exchanger, third flue gas passageway and heat pump, the heat pump through with set up the water pipeling that is used for the hydrologic cycle between the wet flue gas heat exchanger, the wet flue gas heat exchanger be equipped with with the condense outlet pipe of pond intercommunication of flue gas, first flue gas passageway with second flue gas passageway joins the back and connects third flue gas passageway, third flue gas path connection accesss to atmospheric chimney.
Description
Technical field
This utility model is related to energy-conserving and environment-protective technical fiel, particularly to a kind of Wet smoke heat exchange for boiler of power plant
System
Background technology
With the fast development of various countries' economy, earth energy resource consumption, Global climate change, Acid Rain Pollution, water resource
Crisis, natural biology multiformity fall sharply and the pollution of persistent organism is more and more prominent.For the row reducing greenhouse gases
Put, environmental protection is very urgent.At present, senior sister apprentice can have based on structure one fossil energy, and fossil energy is in a long time still
It is the energy basis of human survival and development, the fossil energy such as its petrochina, natural gas and coal accounts for 85%, most of power train
System still depends on fossil energy, and coal is still the main fuel of power generation, and global demand amount is continuing to increase.
Under normal conditions, gas fired-boiler equipment can produce substantial amounts of high-temperature flue gas in the course of the work, at existing place
The flue gas of high temperature directly can be drained in reason mode, a large amount of heat energy in such high-temperature flue gas take in the air to and there is harmful gas
Body, to environment.Meanwhile, after boiler fired coal, most waste heat energy is discharged in environment, a large amount of damages to heat energy
Lose.Exhaust gas temperature is often higher than design temperature, and only by the low efficiency of boiler, the dust emission that also add cleaner unit is dense
Degree, causes huge pollution to environment.In recent years, due to energy shortage, with the development further of energy conservation, various new
The advanced boiler of type, energy-conservation is gradually improved.Burning is enhanced using advanced burner, reduces imperfect combustion.However, fall
Low exhaust gas heat loss becomes estranged the technology still slower development of Mist heat recovering.In order to improve the thermal efficiency of boiler further, reach
Energy-saving purpose, Mist heat recovering is also an important energy saving way.
In order to overcome defect present in above existing boiler flue gas treatment system, can be effectively right in the urgent need to one kind
The system that boiler smoke is reclaimed.
Therefore, this utility model provides a kind of Wet smoke heat-exchange system for boiler of power plant, by rationally to pot
The arrangement of kiln gas recovery system it is achieved that to the waste heat efficient recovery in boiler emission flue gas, by the condensed water of recovery waste heat
Send boiler back to again, so that water resource is reused.
Utility model content
The purpose of this utility model is to provide a kind of Wet smoke heat-exchange system for boiler of power plant, described system bag
Include steam generator system and smoke heat exchanging system；
Described steam generator system includes boiler, the first exhaust gases passes, connect successively the first desulfurization along described first exhaust gases passes
Tower, the first electrostatic fabric filter and the first air-introduced machine, the second exhaust gases passes and connect second successively along described second exhaust gases passes
Desulfurizing tower, the second electrostatic fabric filter and the second air-introduced machine；
Described heat-exchange system includes desulfurizing tower, Wet smoke heat exchanger, the 3rd exhaust gases passes and heat pump, described heat pump with
It is provided for the waterpipe of water circulation, described Wet smoke heat exchanger is provided with and fume gas condensation between described Wet smoke heat exchanger
The outlet pipe of pond connection；
Described first exhaust gases passes are connected described 3rd exhaust gases passes with described second exhaust gases passes after converging；Described 3rd
Exhaust gases passes connect the chimney leading to air.
Preferably, the described waterpipe for water circulation includes the first water inlet pipe, the second water inlet pipe, the first outlet pipe and
Two outlet pipes；Described first water inlet pipe connects steam condensate charging pump, and the first outlet pipe and the connection of the second water inlet pipe are described wet
Formula flue gas heat-exchange unit, the second outlet pipe connects power plant therrmodynamic system low-temperature heater.
Preferably, described heat-exchange system be arranged in juxtaposition one or more groups of.
Preferably, described steam generator system be arranged in juxtaposition one or more groups of.
Preferably, described heat pump be arranged in juxtaposition one or more groups of.
Preferably, the multigroup described heat-exchange system being arranged in juxtaposition, Wet smoke heat exchanger passes through outlet pipe and fume gas condensation
Pond connects.
Preferably, the multigroup described heat-exchange system being arranged in juxtaposition, multigroup 3rd exhaust gases passes mutually converge connection and lead to greatly
The chimney of gas.
This utility model provides a kind of Wet smoke heat-exchange system for boiler of power plant, by rationally to boiler smoke
The arrangement of recovery system is it is achieved that to the waste heat efficient recovery in boiler emission flue gas.
It should be appreciated that aforementioned description substantially and subsequently detailed description are exemplary illustration and explanation, should not
As the restriction to the claimed content of this utility model.
Brief description
With reference to the accompanying drawing enclosed, the more purpose of this utility model, function and advantage will be by this utility model embodiment party
The described below of formula is illustrated, wherein:
Fig. 1 diagrammatically illustrates this utility model for the schematic diagram of the Wet smoke heat-exchange system of boiler of power plant；
Fig. 2 shows the schematic diagram of one group of steam generator system in one embodiment of this utility model；
Fig. 3 shows the schematic diagram of heat-exchange system in one embodiment of this utility model.
Specific embodiment
By reference to one exemplary embodiment, the purpose of this utility model and function and be used for realizing these purposes and function
Method will be illustrated.However, this utility model is not limited to one exemplary embodiment disclosed below；Can be by not
It is realized with form.The essence of description is only to aid in various equivalent modifications Integrated Understanding this utility model
Detail.
Hereinafter, embodiment of the present utility model will be described with reference to the drawings.In the accompanying drawings, identical reference represents
Same or similar part, or same or similar step.
This utility model is used for the schematic diagram of the Wet smoke heat-exchange system of boiler of power plant, described wet type cigarette as shown in Figure 1
Gas heat-exchange system includes steam generator system 100, heat-exchange system 200 and the chimney 300 leading to air.The present embodiment type steam generator system
100 two groups of settings are used for the boiler of power plant, and steam generator system 100 can arrange multigroup pot for power plant in certain embodiments
Stove.Two groups of boilers of the present embodiment are arranged in juxtaposition, and the flue gas that boiler produces is entered in smoke heat exchanging system 200 by exhaust gases passes
Carry out heat exchange, the waste heat in flue gas is reclaimed, the condensed water after recovery waste heat returns to boiler again and re-uses.Through
Flue gas after heat-exchange system 200 recovery waste heat converges and enters into chimney 300 and enter in air.The hereafter boiler system to the present embodiment
System 100 and heat-exchange system 200 illustrate.
The schematic diagram of one group of steam generator system in one embodiment of this utility model as shown in Figure 2, shown steam generator system includes
Boiler of power plant 101, the first exhaust gases passes 102, first desulfurizing tower 103, first that connects successively along described first flue gas 102 passage are electric
Bag dust collector 104 and the first air-introduced machine 105, the second exhaust gases passes 106 and connect successively along described second exhaust gases passes 106
Two desulfurizing towers 107, the second electrostatic fabric filter 108 and the second air-introduced machine 109.First exhaust gases passes 102 exit and the second flue gas
Passage 106 exit and the 3rd exhaust gases passes 110 are interconnected, and make in the first exhaust gases passes 102 and the second exhaust gases passes 106
Flue gas enters in the 3rd exhaust gases passes 110.Flue gas in 3rd exhaust gases passes 110 connects after smoke heat exchanging system and leads to
The chimney of air.
The schematic diagram of heat-exchange system in one embodiment of this utility model as shown in Figure 3, heat-exchange system includes desulfurizing tower
201st, Wet smoke heat exchanger 202, the 3rd exhaust gases passes 210 and heat pump 205 are it is preferable that the present embodiment is arranged side by side from three groups
Heat pump, in other enforcements, heat pump 205 can select to be arranged in juxtaposition multigroup.Described heat pump 205 and Wet smoke heat exchanger
It is provided for the waterpipe of water circulation between 202.Waterpipe for water circulation includes the first water inlet pipe 207, the second water inlet pipe
209th, the first outlet pipe 208 and the second outlet pipe 206；Described first water inlet pipe 207 connects steam condensate charging pump, condensate
Charging pump provides the condensate carrying out heat exchange for Wet smoke heat exchanger 202, the first outlet pipe 208 and the second water inlet pipe 209
Connect described Wet smoke heat exchanger 202, the second outlet pipe 206 connects power plant therrmodynamic system low-temperature heater, after heat exchange
It is high that water sequentially passes through power plant therrmodynamic system low-temperature heater, power plant therrmodynamic system middle temperature heater and power plant therrmodynamic system
Send boiler after warm heater again back to utilize.
Wet smoke heat exchanger 202 is provided with the water inlet 203 entering for recirculated water and outlet 204, meanwhile, Wet smoke
Heat exchanger 202 is provided with the outlet pipe 211 connecting with fume gas condensation pond 212, makes in flue gas after Wet smoke heat exchanger 202 heat exchange
Hydrogenesis tailing edge outlet pipe 211 enter fume gas condensation pond.It should be appreciated that heat-exchange system cloth arranged side by side in the present embodiment
Put two groups, in two groups of heat-exchange systems being arranged in juxtaposition, be interconnected by outlet pipe 211 between two groups of wet type heat exchangers.Another
In some embodiments, multigroup heat-exchange system side by side can be selected, interconnected by outlet pipe phase between multigroup Wet smoke heat exchanger
Logical.
It should be noted that this utility model arranges multigroup steam generator system and multigroup heat-exchange system in different embodiments, often
Described in one embodiment, the steam generator system of arrangement should be corresponding with heat-exchange system number.
Hereinafter specifically with reference to the present embodiment accompanying drawing 1 to accompanying drawing 3, this utility model is discharged for boiler of power plant
The process of flue gas heat exchange.
This utility model is used for the schematic diagram of the Wet smoke heat-exchange system of boiler of power plant as shown in Figure 1, in the present embodiment
Steam generator system 100 and heat-exchange system all arrange two groups.In order to more succinctly clearly illustrate, by one group of steam generator system 100 He
One group of heat-exchange system 200 illustrates to the heat transfer process of boiler of power plant flue gas.
The schematic diagram of one group of steam generator system in one embodiment of this utility model as shown in Figure 2, in boiler 110 burner hearth up to
150 DEG C of flue gas enters the first exhaust gases passes 102 and the second exhaust gases passes 106.The flue gas that boiler produces leads to through the first flue gas
Road 102, enters the first desulfurizing tower 103 and carries out desulfurization process to the sulfide in flue gas, the flue gas after desulfurization enters into the
One electrostatic fabric filter 104 carries out dust removal process to flue gas, and the flue gas through desulfurization and dedusting enters into the first air-introduced machine afterwards
105.The flue gas that boiler produces, through the second exhaust gases passes 106, enters the second desulfurizing tower 107 and the sulfide in flue gas is taken off
Sulphuring treatment, flue gas after desulfurization enters the second electrostatic fabric filter 108 and carries out dust removal process to flue gas, afterwards through desulfurization and
The flue gas of dedusting enters into the second air-introduced machine 109.It is preferable that the first exhaust gases passes and the second exhaust gases passes phase in the present embodiment
Mutually it is arranged in juxtaposition.Through air-introduced machine 105, the flue gas in first exhaust gases passes is incorporated in the 3rd exhaust gases passes 110, air inducing simultaneously
Flue gas in second exhaust gases passes is incorporated in the 3rd exhaust gases passes 110 machine 109.Flue gas enters into through the 3rd exhaust gases passes
Heat-exchange system carries out heat exchange to flue gas, the schematic diagram of heat-exchange system in one embodiment of this utility model as shown in Figure 3, and temperature is
150 DEG C of flue gas enters desulfurizing tower 201 through the 3rd exhaust gases passes and carries out second desulfurization process, flue gas temperature after desulfurization process
Degree is reduced to 56 DEG C of entrance Wet smoke heat exchangers 202.Meanwhile, steam condensate charging pump passes through the first water inlet pipe of heat pump 205
207 offer temperature are 40 DEG C of recirculated water, and after heat pump 205, water temperature drop is flowed out to 15 DEG C by the first outlet pipe 208, through wet
The water inlet 203 of formula flue gas heat-exchange unit 202 enters in described Wet smoke heat exchanger 202 and carries out heat exchange to flue gas.Through heat exchange
Posterior circle coolant-temperature gage is increased to 28 DEG C and is flowed out by the outlet 204 of Wet smoke heat exchanger 202, the second water inlet through heat pump 205
Mouthfuls 209 enter heat pumps 205 after recirculated water is heated up, temperature is increased to 85 DEG C of recirculated water the second outlet pipe 206 by heat pump 205
Enter into power plant therrmodynamic system low-temperature heater, the water after heat exchange sequentially passes through power plant therrmodynamic system low-temperature heater, sends out
Power plant thermal system middle temperature heater and power plant therrmodynamic system high temperature heater (HTH) are sent boiler again back to and are utilized.Boiler smoke passes through
After Wet smoke heat exchanger 202 heat exchange, temperature is reduced to 30 DEG C, enters chimney by the 3rd exhaust gases passes 210 and enters air, in flue gas
Steam through condensation after by outlet pipe 211 flow into fume gas condensation pond 212.
In this utility model other embodiment, during from multigroup heat-exchange system, after Wet smoke heat exchanger heat exchange, cigarette
Gas is met in an entrance chimney by the 3rd exhaust gases passes.
This utility model provides a kind of Wet smoke heat-exchange system for boiler of power plant, by rationally to boiler smoke
The arrangement of recovery system is it is achieved that to the waste heat efficient recovery in boiler emission flue gas, the condensed water of recovery waste heat is sent again
Back boiler, makes water resource reuse.
In conjunction with the explanation of the present utility model disclosing here and practice, other embodiment of the present utility model is for this area
Technical staff will be readily apparent and understands.Illustrate and embodiment be to be considered only as exemplary, of the present utility model real
Scope and spirit are all defined in the claims.
Claims (7)
1. a kind of Wet smoke heat-exchange system for boiler of power plant is it is characterised in that described smoke heat exchanging system includes boiler
System and heat-exchange system；
Described steam generator system include boiler, the first exhaust gases passes, first desulfurizing tower that connects successively along described first exhaust gases passes,
One electrostatic fabric filter and the first air-introduced machine, the second exhaust gases passes and connect successively the second desulfurization along described second exhaust gases passes
Tower, the second electrostatic fabric filter and the second air-introduced machine；
Described heat-exchange system includes desulfurizing tower, Wet smoke heat exchanger, the 3rd exhaust gases passes and heat pump, described heat pump with described
It is provided for the waterpipe of water circulation, described Wet smoke heat exchanger is provided with and fume gas condensation pond between Wet smoke heat exchanger
The outlet pipe of connection；
Described first exhaust gases passes are connected described 3rd exhaust gases passes with described second exhaust gases passes after converging；Described 3rd flue gas
Passage connects the chimney leading to air.
2. smoke heat exchanging system according to claim 1 is it is characterised in that the described waterpipe for water circulation includes
One water inlet pipe, the second water inlet pipe, the first outlet pipe and the second outlet pipe；Described first water inlet pipe connects steam condensation water waterborne
Pump, the first outlet pipe and the second water inlet pipe connect described Wet smoke heat exchanger, and the second outlet pipe connects power plant therrmodynamic system
Low-temperature heater.
3. smoke heat exchanging system according to claim 1 is it is characterised in that described heat-exchange system is arranged in juxtaposition one group or many
Group.
4. smoke heat exchanging system according to claim 1 is it is characterised in that described steam generator system is arranged in juxtaposition one group or many
Group.
5. smoke heat exchanging system according to claim 1 it is characterised in that described heat pump be arranged in juxtaposition one or more groups of.
6. smoke heat exchanging system according to claim 3 is it is characterised in that the multigroup described heat-exchange system that is arranged in juxtaposition,
Wet smoke heat exchanger is connected with fume gas condensation pond by outlet pipe.
7. smoke heat exchanging system according to claim 3 is it is characterised in that the multigroup described heat-exchange system that is arranged in juxtaposition,
Multigroup 3rd exhaust gases passes mutually converge and connect the chimney leading to air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620900555.6U CN205897182U (en) | 2016-08-18 | 2016-08-18 | A wet flue gas heat transfer system for power boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620900555.6U CN205897182U (en) | 2016-08-18 | 2016-08-18 | A wet flue gas heat transfer system for power boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205897182U true CN205897182U (en) | 2017-01-18 |
Family
ID=57778554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620900555.6U Expired - Fee Related CN205897182U (en) | 2016-08-18 | 2016-08-18 | A wet flue gas heat transfer system for power boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205897182U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287640A (en) * | 2016-08-25 | 2017-01-04 | 关文吉 | The Wet smoke heat-exchange system of a kind of boiler of power plant and heat-exchange method |
-
2016
- 2016-08-18 CN CN201620900555.6U patent/CN205897182U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106287640A (en) * | 2016-08-25 | 2017-01-04 | 关文吉 | The Wet smoke heat-exchange system of a kind of boiler of power plant and heat-exchange method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20170818 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |