CN108253405A - A kind of afterheat boiler system with vacuum dust cather - Google Patents
A kind of afterheat boiler system with vacuum dust cather Download PDFInfo
- Publication number
- CN108253405A CN108253405A CN201810166399.9A CN201810166399A CN108253405A CN 108253405 A CN108253405 A CN 108253405A CN 201810166399 A CN201810166399 A CN 201810166399A CN 108253405 A CN108253405 A CN 108253405A
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- Prior art keywords
- pressure
- low pressure
- vacuum dust
- dust cather
- feed water
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Degasification And Air Bubble Elimination (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention discloses a kind of afterheat boiler systems with vacuum dust cather, including desalination water pump, vacuum dust cather, low pressure feed water device, waste heat boiler device, high-pressure feed water device, desalination water pump is connected by feed pipe with vacuum dust cather, vacuum dust cather is connected with low pressure feed water device, low pressure feed water device is connected by water-supply-pipe with waste heat boiler device, and waste heat boiler device is connected with high-pressure feed water device.The present invention removes the oxygen content in demineralized water moisturizing, reduces the temperature of boiler feedwater, reduce the exhaust gas temperature of boiler, improve the efficiency of system by using vacuum dust cather.
Description
Technical field
The present invention relates to a kind of afterheat boiler system, particularly a kind of afterheat boiler system with vacuum dust cather.
Background technology
Afterheat boiler system is a kind of cogeneration unit applied to large power plant.Conventional heat-supply type generating set,
Configuration atmospheric type deaerator is both needed to when rate of water make-up is larger, in conventional system of this configuration air suspended type except oxygen, after deoxygenation
About 104 DEG C of boiler feed temperature, the exhaust gas temperature of waste heat boiler will be higher than 110 DEG C.
Invention content
The object of the present invention is to provide a kind of afterheat boiler system with vacuum dust cather, the boiler feedwaters of the system
Temperature is low, and exhaust gas temperature is low, and system effectiveness is high.
In order to solve the above technical problems, the present invention adopts the following technical scheme that：A kind of waste heat pot with vacuum dust cather
Furnace system, including desalination water pump, vacuum dust cather, low pressure feed water device, waste heat boiler device, high-pressure feed water device, demineralized water
Pump is connected by feed pipe with vacuum dust cather, and vacuum dust cather is connected with low pressure feed water device, and low pressure feed water device passes through defeated
Water pipe is connected with waste heat boiler device, and waste heat boiler device is connected with high-pressure feed water device.
For demineralized water moisturizing to be delivered in vacuum dust cather, low pressure feed water device is used to remove through vacuum desalination water pump
Boiler feedwater after oxygen device deoxygenation is delivered to waste heat boiler device.
In a kind of aforementioned afterheat boiler system with vacuum dust cather, the waste heat boiler device includes low pressure heat exchange dress
It puts, two level deaerating plant, low pressure evaporator and steam generation facility, low pressure heat-exchanger rig are connected with two level deaerating plant, two level
Deaerating plant is connected with low pressure evaporator.
In a kind of aforementioned afterheat boiler system with vacuum dust cather, the low pressure heat-exchanger rig includes connecting with water-supply-pipe
The level-one low-pressure coal saver connect and the two level low-pressure coal saver being connect with level-one low-pressure coal saver.
In a kind of aforementioned afterheat boiler system with vacuum dust cather, the two level deaerating plant includes exchanging heat with low pressure
The low pressure drum of device connection and the deoxygenation head being connect with low pressure drum, low pressure drum are sent out by high-pressure feed water device and steam
Generating apparatus connects.
In a kind of aforementioned afterheat boiler system with vacuum dust cather, the steam generation facility includes high pressure and saves coal
Device, high-pressure superheater and high pressure evaporator, high-pressure economizer are connected with high-pressure superheater, and high-pressure superheater connects with high pressure evaporator
It is logical.
In a kind of aforementioned afterheat boiler system with vacuum dust cather, the high-pressure feed water device is given including the first high pressure
Water pump and the second high pressure water pump, first high pressure water pump are connected in parallel spare each other with the second high pressure water pump.
In a kind of aforementioned afterheat boiler system with vacuum dust cather, the low pressure feed water device is given including the first low pressure
Water pump and the second low pressure feed water pump, the first low pressure feed water pump connect spare each other with the second low pressure feed water parallel connection of pumps.
In a kind of aforementioned afterheat boiler system with vacuum dust cather, the boiler feedwater after the vacuum dust cather deoxygenation
Temperature is 45 DEG C~60 DEG C.
Compared with prior art, the present invention removes the oxygen content in demineralized water moisturizing, reduces by using vacuum dust cather
The temperature of boiler feedwater reduces the exhaust gas temperature of boiler, improves the efficiency of system.
Description of the drawings
Fig. 1 is a kind of structure diagram of embodiment of the present invention.
Reference numeral：1- desalination water pumps, 2- vacuum dust cathers, 3- low pressure feed water devices, 4- waste heat boiler devices, 5- high pressures
Waterworks, 6- feed pipes, 7- water-supply-pipes, 8- low pressure heat-exchanger rigs, 9- two level deaerating plants, 10- low pressure evaporators, 11- steam
Vapour generating means, 12- level-one low-pressure coal savers, 13- two level low-pressure coal savers, 14- low pressure drums, 15- deoxygenation heads, 16- second
Low pressure feed water pumps, 17- high-pressure economizers, 18- high-pressure superheaters, 19- high pressure evaporators, the first high pressure water pumps of 20-, 21- the
Two high pressure water pumps, the first low pressure feed waters of 22- pump.
The present invention is further illustrated with reference to the accompanying drawings and detailed description.
Specific embodiment
Embodiment 1：A kind of afterheat boiler system with vacuum dust cather, including desalination water pump 1, vacuum dust cather 2, low pressure
Waterworks 3, waste heat boiler device 4, high-pressure feed water device 5, desalination water pump 1 are connected by feed pipe 6 with vacuum dust cather 2,
Vacuum dust cather 2 is connected with low pressure feed water device 3, and low pressure feed water device 3 is connected by water-supply-pipe 7 with waste heat boiler device 4, remaining
Hot pot furnace apparatus 4 is connected with high-pressure feed water device 5.
Embodiment 2：A kind of afterheat boiler system with vacuum dust cather, including desalination water pump 1, vacuum dust cather 2, low pressure
Waterworks 3, waste heat boiler device 4, high-pressure feed water device 5, desalination water pump 1 are connected by feed pipe 6 with vacuum dust cather 2,
Vacuum dust cather 2 is connected with low pressure feed water device 3, and low pressure feed water device 3 is connected by water-supply-pipe 7 with waste heat boiler device 4, remaining
Hot pot furnace apparatus 4 is connected with high-pressure feed water device 5.Specifically, waste heat boiler device 4 includes low pressure heat-exchanger rig 8, two level deoxygenation
Device 9, low pressure evaporator 10 and steam generation facility 11, low pressure heat-exchanger rig 8 are connected with two level deaerating plant 9, two level deoxygenation
Device 9 is connected with low pressure evaporator 10.
Embodiment 3：A kind of afterheat boiler system with vacuum dust cather, including desalination water pump 1, vacuum dust cather 2, low pressure
Waterworks 3, waste heat boiler device 4, high-pressure feed water device 5, desalination water pump 1 are connected by feed pipe 6 with vacuum dust cather 2,
Vacuum dust cather 2 is connected with low pressure feed water device 3, and low pressure feed water device 3 is connected by water-supply-pipe 7 with waste heat boiler device 4, remaining
Hot pot furnace apparatus 4 is connected with high-pressure feed water device 5.Specifically, waste heat boiler device 4 includes low pressure heat-exchanger rig 8, two level deoxygenation
Device 9, low pressure evaporator 10 and steam generation facility 11, low pressure heat-exchanger rig 8 are connected with two level deaerating plant 9, two level deoxygenation
Device 9 is connected with low pressure evaporator 10.Specifically, low pressure heat-exchanger rig 8 includes the level-one low-pressure coal saver being connect with water-supply-pipe 7
12 and the two level low-pressure coal saver 13 that is connect with level-one low-pressure coal saver 12.Boiler feed temperature after 2 deoxygenation of vacuum dust cather
It is 60 DEG C.
Embodiment 4：A kind of afterheat boiler system with vacuum dust cather, including desalination water pump 1, vacuum dust cather 2, low pressure
Waterworks 3, waste heat boiler device 4, high-pressure feed water device 5, desalination water pump 1 are connected by feed pipe 6 with vacuum dust cather 2,
Vacuum dust cather 2 is connected with low pressure feed water device 3, and low pressure feed water device 3 is connected by water-supply-pipe 7 with waste heat boiler device 4, remaining
Hot pot furnace apparatus 4 is connected with high-pressure feed water device 5.Specifically, waste heat boiler device 4 includes low pressure heat-exchanger rig 8, two level deoxygenation
Device 9, low pressure evaporator 10 and steam generation facility 11, low pressure heat-exchanger rig 8 are connected with two level deaerating plant 9, two level deoxygenation
Device 9 is connected with low pressure evaporator 10.Specifically, low pressure heat-exchanger rig 8 includes the level-one low-pressure coal saver being connect with water-supply-pipe 7
12 and the two level low-pressure coal saver 13 that is connect with level-one low-pressure coal saver 12.Further, two level deaerating plant 9 include with it is low
The pressure heat-exchanger rig 8 low pressure drum 14 connected and the deoxygenation head 15 being connect with low pressure drum 14, low pressure drum 14 are given by high pressure
Water installations 5 are connected with steam generation facility 11.Steam generation facility 11 includes high-pressure economizer 17, high-pressure superheater 18 and high pressure
Evaporator 19, high-pressure economizer 17 are connected with high-pressure superheater 18, and high-pressure superheater 18 is connected with high pressure evaporator 19.High pressure is given
Water installations 5 include the first high pressure water pump 20 and the second high pressure water pump 21, the first high pressure water pump 20 and the second high-pressure feed water
Pump 21 is connected in parallel spare each other.Boiler feed temperature after 2 deoxygenation of vacuum dust cather is 50 DEG C.
Embodiment 5：A kind of afterheat boiler system with vacuum dust cather, including desalination water pump 1, vacuum dust cather 2, low pressure
Waterworks 3, waste heat boiler device 4, high-pressure feed water device 5, desalination water pump 1 are connected by feed pipe 6 with vacuum dust cather 2,
Vacuum dust cather 2 is connected with low pressure feed water device 3, and low pressure feed water device 3 is connected by water-supply-pipe 7 with waste heat boiler device 4, remaining
Hot pot furnace apparatus 4 is connected with high-pressure feed water device 5.Specifically, waste heat boiler device 4 includes low pressure heat-exchanger rig 8, two level deoxygenation
Device 9, low pressure evaporator 10 and steam generation facility 11, low pressure heat-exchanger rig 8 are connected with two level deaerating plant 9, two level deoxygenation
Device 9 is connected with low pressure evaporator 10.Specifically, low pressure heat-exchanger rig 8 includes the level-one low-pressure coal saver being connect with water-supply-pipe 7
12 and the two level low-pressure coal saver 13 that is connect with level-one low-pressure coal saver 12.Further, two level deaerating plant 9 include with it is low
The pressure heat-exchanger rig 8 low pressure drum 14 connected and the deoxygenation head 15 being connect with low pressure drum 14, low pressure drum 14 are given by high pressure
Water installations 5 are connected with steam generation facility 11.Steam generation facility 11 includes high-pressure economizer 17, high-pressure superheater 18 and high pressure
Evaporator 19, high-pressure economizer 17 are connected with high-pressure superheater 18, and high-pressure superheater 18 is connected with high pressure evaporator 19.High pressure is given
Water installations 5 include the first high pressure water pump 20 and the second high pressure water pump 21, the first high pressure water pump 20 and the second high-pressure feed water
Pump 21 is connected in parallel spare each other.Low pressure feed water device 3 includes the first low pressure feed water pump 22 and the second low pressure feed water pumps 16, first
Low pressure feed water pump 22 and the second low pressure feed water pump 16 are connected in parallel spare each other.Boiler feedwater temperature after 2 deoxygenation of vacuum dust cather
Spend is 45 DEG C.
The operation principle of the present invention：
Demineralized water moisturizing is sent into vacuum dust cather 2 through desalination water pump 1.Into before vacuum dust cather 2, filled using waste heat boiler
The high-temperature-hot-water of 4 low pressure heat-exchanger rig 8 is put, the temperature of demineralized water moisturizing is made to rise to a temperature in the range of 45 DEG C~60 DEG C
Value, the demineralized water moisturizing after then will heat up again are sent into vacuum dust cather 2, and demineralized water moisturizing is removed in vacuum dust cather 2
In oxygen content become boiler feedwater, boiler feedwater sent by low pressure feed water device 3 to 4 low pressure heat-exchanger rig of waste heat boiler device
8, it exchanges heat in low pressure heat-exchanger rig 8 with heat smoke, the boiler feedwater after heat exchange is sent to two level deaerating plant 9, passes through
Low pressure drum 14 and deoxygenation head 15 carry out deoxygenation, and then fraction boiler feedwater generates low-pressure steam through low pressure evaporator 10,
Boiler feedwater in remaining major part low pressure drum 14, which is sent through high-pressure feed water device 5 to steam generation facility 11, (to be sent successively to high pressure
Economizer 17, high-pressure superheater 18 and high pressure evaporator 19) high steam is generated afterwards.
Deoxygenation is carried out to the demineralized water moisturizing after heating as a result of vacuum dust cather 2, is effectively stripped of demineralized water benefit
Oxygen content in water makes the boiler feed temperature after deoxygenation maintain 40 DEG C~65 DEG C ranges or so, well below conventional system
In 104 DEG C, and then the exhaust gas temperature of waste heat boiler device 4 is allow to be reduced to 80 DEG C or so, than conventional system exhaust gas temperature
Can only be down to 120 DEG C or so it is about 40 DEG C low, substantially increase the efficiency of waste heat boiler.
Claims (8)
1. a kind of afterheat boiler system with vacuum dust cather, which is characterized in that including desalination water pump (1), vacuum dust cather
(2), low pressure feed water device (3), waste heat boiler device (4), high-pressure feed water device (5), the desalination water pump (1) pass through feed pipe
(6) it is connected with vacuum dust cather (2), vacuum dust cather (2) is connected with low pressure feed water device (3), and low pressure feed water device (3) passes through
Water-supply-pipe (7) is connected with waste heat boiler device (4), and the waste heat boiler device (4) connects with high-pressure feed water device (5).
A kind of 2. afterheat boiler system with vacuum dust cather according to claim 1, which is characterized in that the waste heat pot
Furnace apparatus (4) includes low pressure heat-exchanger rig (8), two level deaerating plant (9), low pressure evaporator (10) and steam generation facility
(11), the low pressure heat-exchanger rig (8) connects with two level deaerating plant (9), two level deaerating plant (9) and low pressure evaporator (10)
Connection.
3. a kind of afterheat boiler system with vacuum dust cather according to claim 2, which is characterized in that the low pressure is changed
What thermal (8) was connect including the level-one low-pressure coal saver (12) that is connect with water-supply-pipe (7) and with level-one low-pressure coal saver (12)
Two level low-pressure coal saver (13).
4. a kind of afterheat boiler system with vacuum dust cather according to claim 2, which is characterized in that the two level is removed
Oxygen device (9) includes the low pressure drum (14) being connect with low pressure heat-exchanger rig (8) and the deoxygenation head being connect with low pressure drum (14)
(15), low pressure drum (14) is connected by high-pressure feed water device (5) with steam generation facility (11).
A kind of 5. afterheat boiler system with vacuum dust cather according to claim 2, which is characterized in that the steam hair
Generating apparatus (11) includes high-pressure economizer (17), high-pressure superheater (18) and high pressure evaporator (19), the high-pressure economizer
(17) it is connected with high-pressure superheater (18), high-pressure superheater (18) is connected with high pressure evaporator (19).
6. a kind of afterheat boiler system with vacuum dust cather according to claim 1, which is characterized in that the high pressure is given
Water installations (5) include the first high pressure water pump (20) and the second high pressure water pump (21), first high pressure water pump (20) with
Second high pressure water pump (21) is connected in parallel spare each other.
7. a kind of afterheat boiler system with vacuum dust cather according to claim 1, which is characterized in that the low pressure is given
Water installations (3) include the first low pressure feed water pump (22) and the second low pressure feed water pumps (16), first low pressure feed water pump (22) and
Second low pressure feed water pump (16) is connected in parallel spare each other.
8. a kind of afterheat boiler system with vacuum dust cather according to claim 1, which is characterized in that the vacuum is removed
Boiler feed temperature after oxygen device (2) deoxygenation is 45 DEG C~60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166399.9A CN108253405A (en) | 2018-02-28 | 2018-02-28 | A kind of afterheat boiler system with vacuum dust cather |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810166399.9A CN108253405A (en) | 2018-02-28 | 2018-02-28 | A kind of afterheat boiler system with vacuum dust cather |
Publications (1)
| Publication Number | Publication Date |
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| CN108253405A true CN108253405A (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810166399.9A Pending CN108253405A (en) | 2018-02-28 | 2018-02-28 | A kind of afterheat boiler system with vacuum dust cather |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601214A (en) * | 2004-09-30 | 2005-03-30 | 中信重型机械公司 | Generating set system of simple low temperature waste heat from large size cement manufacture line in dry method, and technical process |
| CN201858899U (en) * | 2010-09-21 | 2011-06-08 | 广东开能环保能源有限公司 | Improved power generation system for cement industry |
| CN203258631U (en) * | 2013-04-15 | 2013-10-30 | 中信重工机械股份有限公司 | Medium-temperature medium-pressure dual-pressure heat recovery boiler with self-deoxygenizing system |
| CN205014338U (en) * | 2015-08-14 | 2016-02-03 | 上海运能能源科技有限公司 | Prevent exhaust -heat boiler integration deoxidization water supply system of coke oven flue gas corruption |
| CN207936050U (en) * | 2018-02-28 | 2018-10-02 | 中国华电科工集团有限公司 | A kind of afterheat boiler system with vacuum dust cather |
-
2018
- 2018-02-28 CN CN201810166399.9A patent/CN108253405A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1601214A (en) * | 2004-09-30 | 2005-03-30 | 中信重型机械公司 | Generating set system of simple low temperature waste heat from large size cement manufacture line in dry method, and technical process |
| CN201858899U (en) * | 2010-09-21 | 2011-06-08 | 广东开能环保能源有限公司 | Improved power generation system for cement industry |
| CN203258631U (en) * | 2013-04-15 | 2013-10-30 | 中信重工机械股份有限公司 | Medium-temperature medium-pressure dual-pressure heat recovery boiler with self-deoxygenizing system |
| CN205014338U (en) * | 2015-08-14 | 2016-02-03 | 上海运能能源科技有限公司 | Prevent exhaust -heat boiler integration deoxidization water supply system of coke oven flue gas corruption |
| CN207936050U (en) * | 2018-02-28 | 2018-10-02 | 中国华电科工集团有限公司 | A kind of afterheat boiler system with vacuum dust cather |
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