CN208042098U - Power plant's wet flue gas residual neat recovering system - Google Patents
Power plant's wet flue gas residual neat recovering system Download PDFInfo
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- CN208042098U CN208042098U CN201820343656.7U CN201820343656U CN208042098U CN 208042098 U CN208042098 U CN 208042098U CN 201820343656 U CN201820343656 U CN 201820343656U CN 208042098 U CN208042098 U CN 208042098U
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- supply network
- heat
- heat supply
- water
- flue gas
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 239000003546 flue gas Substances 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 86
- 239000000428 dust Substances 0.000 claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims abstract description 18
- 238000005453 pelletization Methods 0.000 claims abstract description 17
- 238000010521 absorption reaction Methods 0.000 claims abstract description 3
- 239000012530 fluid Substances 0.000 claims description 8
- 239000008400 supply water Substances 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 238000010025 steaming Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 description 4
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model discloses a kind of power plant's wet flue gas residual neat recovering systems, including boiler (8), dust pelletizing system, heat pump unit, heat supply network water system and chimney (13), the dust pelletizing system is connect with the boiler (8), on the flue that the heat pump unit is arranged between the dust pelletizing system and the chimney (13), by the heat absorption for the flue gas for passing through the dust pelletizing system and it is transferred to the heat supply network water system being connect with the heat pump unit.Wet flue gas enters heat pump unit, releases heat, and temperature is reduced, is discharged later by chimney；In heat pump unit, the refrigerant in refrigerant tubing absorbs the heat in wet flue gas when passing through evaporator, heat supply network water system is transferred heat to later, to improve the utilization ratio of Power Plant Fuel.
Description
Technical field
The utility model is related to field of thermal power, more particularly to a kind of power plant's wet flue gas residual neat recovering system.
Background technology
Currently, coal-burning power plant generally uses wet desulphurization and minimum discharge technique, after desulfurization, dedusting, temperature 48
It~50 DEG C and carries the wet flue gas of a large amount of saturated steams and is finally discharged into air, this does not make full use of the heat of fuel
Can, moreover, a large amount of moisturizings can cause unit rate of water make-up to increase by flue gas evaporation, while causing air humidity in ambient atmosphere
Increase, influence area atmospheric environment.
Utility model content
The purpose of this utility model is to overcome problems of the existing technology, provide a kind of power plant's wet flue gas waste heat time
Receipts system can improve the utilization ratio of Power Plant Fuel, reduce the rate of water make-up of unit, reduce the influence to atmospheric environment.
To achieve the goals above, the utility model provides a kind of power plant's wet flue gas residual neat recovering system, including boiler, removes
Dirt system, heat pump unit, heat supply network water system and chimney, the dust pelletizing system are connect with the boiler, and the heat pump unit is set
It sets on the flue between the dust pelletizing system and the chimney, the heat that will pass through the flue gas of the dust pelletizing system is inhaled
It receives and is transferred to the heat supply network water system being connect with the heat pump unit.
Preferably, the heat pump unit includes evaporator, compressor, condenser, fluid reservoir and filter；The evaporation
The entrance of device connects boiler by the flue, and the outlet of the evaporator connects the cigarette by the flue
Chimney is provided with refrigerant tubing, the compressor, the condenser, the fluid reservoir and the filtering in the evaporator
Device is sequentially connected, and the both ends of the refrigeration piping are connect with the compressor and the filter respectively to be closed back with the formation
Road, the heat supply network water system are connect by heat supply network waterpipe with the condenser.
Preferably, the evaporator lower part is provided with collector tube, and the collector tube is connected with header tank.
Preferably, the header tank is connected with balance pipe, and the balance pipe is connected to the heat pump unit and the chimney
Between the flue.
Preferably, the refrigerant tubing include first pipe between the evaporator and the compressor and
Second pipe between the evaporator and the filter is arranged between the first pipe and the second pipe
There is third pipeline, expansion valve is provided on the third pipeline.
Preferably, the heat supply network waterpipe includes that heat supply network water supply line, heat supply network water return pipeline and the connection heat supply network supply
The connecting pipe of waterpipe and heat supply network water return pipeline, heat supply network water supply line one end connect the drainpipe of the condenser, separately
One end is used to supply water to heat supply network；Heat supply network water return pipeline one end connects the water inlet pipe of the condenser, and the other end is used for heat supply network
Return water；The connecting pipe is equipped with warm-air drier.
Preferably, the heat supply network water supply line is equipped with water supply pump and heat supply network feed water valve, the connection successively along water supply direction
Pipeline is arranged between the water supply pump and heat supply network feed water valve.
Preferably, the heat supply network water return pipeline is equipped with heat supply network back-water valve (BWV), and the connecting pipe setting is returned in the heat supply network
Between water valve and the condenser.
Preferably, the dust pelletizing system includes by the sequentially connected electrical dust collector device of the flue, air-introduced machine, takes off
Sulphur device and Wet type electric dust-removing device.
Through the above technical solutions, wet flue gas enters heat pump unit, heat is released, temperature is reduced, arranged later by chimney
Go out；In heat pump unit, the refrigerant in refrigerant tubing absorbs the heat in wet flue gas when passing through evaporator, later by heat
It is transferred to heat supply network water system, to improve the utilization ratio of Power Plant Fuel.
Description of the drawings
Fig. 1 is the structural schematic diagram of the preferred embodiment of power plant's wet flue gas residual neat recovering system of the utility model；
Fig. 2 is the structural schematic diagram of heat pump unit in Fig. 1.
Reference sign
1- evaporators, 2- compressors, 3- condensers, 4- fluid reservoirs, 5- filters, 6- header tanks, 7- expansion valves, 8- pots
Stove, 9- electrical dust collector devices, 10- air-introduced machines, 11- desulfurizers, 12- Wet type electric dust-removing devices, 13- chimneys, 14- warm-air driers, 15-
Water supply pump, 16- heat supply network feed water valves, 17- heat supply network back-water valve (BWV)s
Specific implementation mode
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific implementation mode is only used for describing and explaining the present invention, and is not intended to limit the utility model.
As shown in Figure 1, power plant's wet flue gas residual neat recovering system of the utility model includes boiler 8, dust pelletizing system, heat pump machine
Group, heat supply network water system and chimney 13, dust pelletizing system are connect with boiler 8, heat pump unit setting dust pelletizing system and chimney 13 it
Between flue on, by the heat absorption for the flue gas for passing through dust pelletizing system and be transferred to the hot net water being connect with heat pump unit
System.After the wet flue gas that the burning of boiler 8 is formed enters heat pump unit by flue, wet flue gas can release heat so that
The temperature of itself reduces, and is discharged later by chimney, can thus reduce the influence to atmospheric environment.In addition, heat pump unit
The water in the heat heat supply network water system of wet flue gas can be utilized, to meet the heat supply of heat supply network water system.
Heat pump unit could be provided as diversified forms, as long as can absorb the heat of wet flue gas and transfer heat to heat supply network
Water system, in preferred embodiments of the present invention, as shown in Fig. 2, heat pump unit includes evaporator 1, compressor
2, condenser 3, fluid reservoir 4 and filter 5；The entrance of evaporator 1 connects boiler 8, the outlet of evaporator 1 by flue
Connect chimney 13 by flue, be provided with refrigerant tubing in evaporator 1, compressor 2, condenser 3, fluid reservoir 4 and
Filter 5 is sequentially connected, and the both ends of refrigeration piping are connect with compressor 2 and filter 5 to form closed circuit, hot net water respectively
System is connect by heat supply network waterpipe with condenser 3.When evaporator 1 of the wet flue gas containing heat Jing Guo heat pump unit, steam
The heat in the refrigerant suction wet flue gas in the refrigerant tubing in device 1 is sent out, transfers heat to heat supply network water system later, from
And improve the utilization ratio of Power Plant Fuel.
Wet flue gas can be partly formed liquid in evaporator 1, therefore, collector tube, collector tube be arranged in 1 lower part of evaporator
It is connected with header tank 6.The water that wet flue gas is formed will be flowed into along collector tube in header tank 6.
In addition, header tank 6 is connected with balance pipe, balance pipe is connected to the flue between heat pump unit and chimney 13.
The setting of balance pipe can ensure the pressure balance in header tank 6.
Preferably, refrigerant tubing includes first pipe between evaporator 1 and compressor 2 and is located at evaporator
Second pipe between 1 and filter 5 is provided with third pipeline between first pipe and second pipe, is set on third pipeline
It is equipped with expansion valve 7.When the pressure imbalance between first pipe and second pipe, by adjusting first pipe and second pipe
Between expansion valve 7 on the third pipeline that is arranged can reach the effect of balance pressure power.
Heat supply network waterpipe includes heat supply network water supply line, heat supply network water return pipeline and connection heat supply network water supply line and heat supply network return water
The connecting pipe of pipeline, heat supply network water supply line one end connect the drainpipe of condenser 3, and the other end is used to supply water to heat supply network；Heat supply network
Water return pipeline one end connects the water inlet pipe of condenser 3, and the other end is used for the return water of heat supply network；Connecting pipe is equipped with warm-air drier 14.
While to heat supply network user's heat supply, the setting of warm-air drier 14 can improve air preheater inlet air temperature in turbine system, prevent
Air preheater low-temperature corrosion and knot ash.
Heat supply network water supply line is equipped with water supply pump 15 and heat supply network feed water valve 16 successively along water supply direction, and connecting pipe setting is supplying
Between water pump 15 and heat supply network feed water valve 16.Water in heat supply network water system absorbs heat in condenser 3 with gaseous refrigerant heat exchanger
After amount, sent to heat supply network user and warm-air drier 14 after the boosting of water supply pump 15.
Heat supply network water return pipeline is equipped with heat supply network back-water valve (BWV) 17, connecting pipe setting heat supply network back-water valve (BWV) 17 and condenser 3 it
Between.Dust pelletizing system includes by the sequentially connected electrical dust collector device 9 of flue, air-introduced machine 10, desulfurizer 11 and wet type electricity
Dust-extraction unit 12.When heat supply network user needs to deactivate, heat supply network feed water valve 16 and heat supply network back-water valve (BWV) 17 only need to be closed.
The work step of the utility model is described in detail with reference to Fig. 1：
A, the wet flue gas that the burning of boiler 8 generates is exported from boiler 8 carries out wet flue gas dedusting through electrical dust collector device 9；
B, the wet flue gas after dedusting is sent after 10 adherence pressure of air-introduced machine to desulfurizer 11；
C, the wet flue gas after desulfurization deviates from solid particulate matter through 12 further dedusting of Wet type electric dust-removing device；
D, the wet flue gas after 12 dedusting of Wet type electric dust-removing device enters the evaporator 1 of heat pump unit, releases heat, temperature
It reduces, Water vapor condensation Cheng Shuijing collector tubes are collected to header tank 6.Header tank 6 is connected with balance pipe, balance pipe and evaporator 1
Wet flue gas piping connection afterwards balances the pressure in header tank 6, to ensure that coagulation hydroenergy backwater is unimpeded；
E, it is discharged into chimney 13 by the low temperature wet flue gas of evaporator 1；
F, in heat pump unit, refrigerant passes through evaporator 1, absorbs the heat in wet flue gas, becomes gaseous state by liquid；
G, gaseous refrigerant promotes temperature through compressor 2 and send to condenser 3, exchanges heat with heat supply network water system, temperature
Degree reduces and condenses into liquid；
H, the refrigerant of liquid is collected to fluid reservoir 4, is again introduced into evaporator 1 through filter 5 absorbs wet flue gas later
Waste heat completes cycle；
I, after the water in heat supply network water system absorbs heat in condenser 3 with gaseous refrigerant heat exchanger, through water supply pump 15
It is sent after boosting to heat supply network user and warm-air drier 14.
J, when heat supply network user deactivates, heat supply network feed water valve 16 and heat supply network back-water valve (BWV) 17 are closed.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail above in association with attached drawing
In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model,
In order to avoid unnecessary repetition, the utility model no longer separately illustrates various combinations of possible ways.But these simple changes
Type and combination equally should be considered as content disclosed in the utility model, belong to the scope of protection of the utility model.
Claims (9)
1. a kind of power plant's wet flue gas residual neat recovering system, which is characterized in that including boiler (8), dust pelletizing system, heat pump unit, heat
Net water system and chimney (13), the dust pelletizing system are connect with the boiler (8), and the heat pump unit is arranged in the dedusting
On flue between system and the chimney (13), the heat absorption of the flue gas of the dust pelletizing system and transmission will be passed through
To the heat supply network water system being connect with the heat pump unit.
2. power plant's wet flue gas residual neat recovering system according to claim 1, which is characterized in that the heat pump unit includes steaming
Send out device (1), compressor (2), condenser (3), fluid reservoir (4) and filter (5)；The entrance of the evaporator (1) passes through institute
Flue connection boiler (8) is stated, the outlet of the evaporator (1) connects the chimney (13), institute by the flue
It states in evaporator (1) and is provided with refrigerant tubing, the compressor (2), the condenser (3), the fluid reservoir (4) and institute
It states filter (5) to be sequentially connected, the both ends of the refrigerant tubing connect with the compressor (2) and the filter (5) respectively
It connects to form the closed circuit, the heat supply network water system is connect by heat supply network waterpipe with the condenser (3).
3. power plant's wet flue gas residual neat recovering system according to claim 2, which is characterized in that evaporator (1) lower part
It is provided with collector tube, the collector tube is connected with header tank (6).
4. power plant's wet flue gas residual neat recovering system according to claim 3, which is characterized in that header tank (6) connection
There are balance pipe, the balance pipe to be connected to the flue between the heat pump unit and the chimney (13).
5. power plant's wet flue gas residual neat recovering system according to claim 2, which is characterized in that the refrigerant tubing includes
First pipe between the evaporator (1) and the compressor (2) and positioned at the evaporator (1) and the filtering
Second pipe between device (5) is provided with third pipeline, the third pipe between the first pipe and the second pipe
Expansion valve (7) is provided on road.
6. power plant's wet flue gas residual neat recovering system according to claim 2, which is characterized in that the heat supply network waterpipe includes
The connecting pipe of heat supply network water supply line, heat supply network water return pipeline and connection the heat supply network water supply line and heat supply network water return pipeline, institute
The drainpipe that heat supply network water supply line one end connects the condenser (3) is stated, the other end is used to supply water to heat supply network；The heat supply network return water
Pipeline one end connects the water inlet pipe of the condenser (3), and the other end is used for the return water of heat supply network；The connecting pipe is equipped with warm wind
Machine (14).
7. power plant's wet flue gas residual neat recovering system according to claim 6, which is characterized in that heat supply network water supply line edge
Water supply direction is equipped with water supply pump (15) and heat supply network feed water valve (16) successively, the connecting pipe be arranged in the water supply pump (15) and
Between heat supply network feed water valve (16).
8. power plant's wet flue gas residual neat recovering system according to claim 6, which is characterized in that on the heat supply network water return pipeline
Equipped with heat supply network back-water valve (BWV) (17), the connecting pipe is arranged between the heat supply network back-water valve (BWV) (17) and the condenser (3).
9. power plant's wet flue gas residual neat recovering system according to claim 1, which is characterized in that the dust pelletizing system includes logical
Cross the sequentially connected electrical dust collector device of the flue (9), air-introduced machine (10), desulfurizer (11) and Wet type electric dust-removing device
(12)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820343656.7U CN208042098U (en) | 2018-03-13 | 2018-03-13 | Power plant's wet flue gas residual neat recovering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820343656.7U CN208042098U (en) | 2018-03-13 | 2018-03-13 | Power plant's wet flue gas residual neat recovering system |
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| Publication Number | Publication Date |
|---|---|
| CN208042098U true CN208042098U (en) | 2018-11-02 |
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ID=63947520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820343656.7U Active CN208042098U (en) | 2018-03-13 | 2018-03-13 | Power plant's wet flue gas residual neat recovering system |
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| Country | Link |
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| CN (1) | CN208042098U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109945277A (en) * | 2019-03-25 | 2019-06-28 | 大连理工大学 | An energy-saving system using electric heat pump to deeply recover waste heat from flue gas of thermal power plant for central heating |
| CN110108033A (en) * | 2019-03-12 | 2019-08-09 | 北京北燃供热有限公司 | It is a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus |
| CN113669749A (en) * | 2021-09-01 | 2021-11-19 | 镇江市丹徒区粮机厂有限公司 | Industrial fan for conveying high-temperature flue gas |
-
2018
- 2018-03-13 CN CN201820343656.7U patent/CN208042098U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108033A (en) * | 2019-03-12 | 2019-08-09 | 北京北燃供热有限公司 | It is a kind of for heating medium-sized gas fired-boiler flue gas waste heat recovery apparatus |
| CN109945277A (en) * | 2019-03-25 | 2019-06-28 | 大连理工大学 | An energy-saving system using electric heat pump to deeply recover waste heat from flue gas of thermal power plant for central heating |
| CN113669749A (en) * | 2021-09-01 | 2021-11-19 | 镇江市丹徒区粮机厂有限公司 | Industrial fan for conveying high-temperature flue gas |
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