CN107062192A - Heat regenerative system and deaerator bay - Google Patents
Heat regenerative system and deaerator bay Download PDFInfo
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- CN107062192A CN107062192A CN201710262172.XA CN201710262172A CN107062192A CN 107062192 A CN107062192 A CN 107062192A CN 201710262172 A CN201710262172 A CN 201710262172A CN 107062192 A CN107062192 A CN 107062192A
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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
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
- F22D1/325—Schematic arrangements or control devices therefor
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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)
- Separation By Low-Temperature Treatments (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The present invention relates to a kind of heat regenerative system and deaerator bay.The heat regenerative system, including a high-pressure heater, No. two high-pressure heaters, No. three high-pressure heaters, No. four high-pressure heaters, oxygen-eliminating device, No. six low-pressure heaters, No. seven low-pressure heaters, No. eight low-pressure heaters, No. nine low-pressure heaters, No. ten low-pressure heaters, condenser, condensate pump, drainage pump, feed pump, the first externally arranged steam cooler and the second externally arranged steam cooler, reduce poor, blocked drain of the reduction caused by difference between level between level.Deaerator bay is from top to bottom disposed with except oxygen layer, interlayer, operating layer, intermediate layer and zero meter of layer, No. eight low-pressure heaters are arranged on intermediate layer, No. seven low-pressure heaters are arranged on operating floor, No. six low-pressure heaters are arranged on interlayer or operating floor, widen the vertical drop between low-pressure heater, the problem of low plus hydrophobic is not smooth when can overcome underload completely using difference in height, reduces hydrophobic heat loss, increases generated energy.
Description
Technical field
The present invention relates to technical field of power generation, more particularly to heat regenerative system.Backheat is arranged the invention also discloses one kind
The deaerator bay of system.
Background technology
The major parameter of influence feedwater backheat heating economics is backheat heating distribution, corresponding optimum feed temperature and returns
Thermal level number.The power industry typically temperature rise method such as use, makes the enthalpy of every primary heater rise equal.Traditional heat regenerative system was drawn gas
Temperature is very big, corresponding bleeder heater heat transfer temperature difference increase, irreversible loss increase caused by temperature difference heat exchange, and UTILIZATION OF VESIDUAL HEAT IN
Rate is relatively low.
Traditional deaerator bay is often chronically at low load condition when being reduced using hourage.When running into underload, for example
Under 30%HTA operating modes, it may appear that not enough, often 5m water column pressure difference does not all have the pressure difference between low-pressure heater, normal to dredge
Water often blocked drain.Power plant will open emergent drain to condenser, recyclable hydrophobic heat be wasted, when causing underload
Heat consumption increase, reduces unit economy.By primary Calculation, do not reclaimed per the hydrophobic of 1t/h, heat consumption increase 0.25KJ/kw.h,
Annual coal consumption increase, annual gene-ration revenue is reduced.
The content of the invention
Based on this, it is necessary to for the temperature difference cause damage greatly, there is provided a kind of heat regenerative system for the not high problem of economy.
The present invention also provides the problem of low plus hydrophobic is not smooth when can overcome underload using difference in height, reduces hydrophobic heat waste
Lose, reduce coal consumption, increase the deaerator bay of generated energy.
A kind of heat regenerative system, including it is high-pressure heater, No. two high-pressure heaters, No. three high-pressure heaters, No. four high
Press heater, oxygen-eliminating device, No. six low-pressure heaters, No. seven low-pressure heaters, No. eight low-pressure heaters, No. nine low-pressure heaters,
No. ten low-pressure heaters, condenser, condensate pump, drainage pump, feed pump, the first externally arranged steam cooler and the second external
Steam condenser；
A number high-pressure heater, No. two high-pressure heaters, No. three high-pressure heaters, No. four high-pressure heaters, deoxygenations
Device, No. six low-pressure heaters, No. seven low-pressure heaters, No. eight low-pressure heaters, No. nine low-pressure heaters, No. ten low-pressure heaters
Interior pressure reduces and is used to be connected with extract system successively；
The condenser, condensate pump, No. ten low-pressure heaters, No. nine low-pressure heaters, No. eight low-pressure heaters, No. seven
Low-pressure heater, No. six low-pressure heaters, oxygen-eliminating devices are in turn connected to form condensate system；
The oxygen-eliminating device, feed pump, No. four high-pressure heaters, No. three high-pressure heaters, No. two high-pressure heaters and No. one
High-pressure heater is in turn connected to form water supply system, the hydrophobic cooling section of the drainage pump two ends respectively with No. eight low-pressure heaters
With No. seven low-pressure heater connections；
First externally arranged steam cooler is connected with No. three high-pressure heaters, second externally arranged steam cooler
It is connected with No. four high-pressure heaters.
Above-mentioned heat regenerative system, level Four high-pressure heater, one-level oxygen-eliminating device, using cooperatively for Pyatyi low-pressure heater add
The use of high-pressure heater and low-pressure heater, can reduce stage head, reduce because stage head not enough caused by it is hydrophobic
It is not smooth, while reducing because crisis situations are directly hydrophobic to condenser, effectively using hydrophobic heat, improve economy；Drainage pump two
Hold hydrophobic cooling section and No. seven low-pressure heaters respectively with No. eight low-pressure heaters to be connected, No. eight low-pressure heaters can be dredged
Hydrophobic to No. seven low-pressure heaters of water of water cooling section, can recycle the water in No. eight hydrophobic cooling sections of low-pressure heater,
Improve the service efficiency of heat；No. three high-pressure heaters and No. four high-pressure heaters steam superheat in use simultaneously
Greatly, can by setting the first externally arranged steam cooler and the second externally arranged steam cooler to make full use of steam superheat
Irreversible heat exchange loss is reduced, while feed temperature can be improved to a certain degree under various load conditions, heat consumption is reduced.
In one of the embodiments, the hydrophobic cooling section of No. six low-pressure heaters and No. seven low-pressure heaters connect
Connect, the hydrophobic cooling section of No. seven low-pressure heaters is connected with No. eight low-pressure heaters.No. six low-pressure heaters, No. seven low pressure
Heater, No. eight low-pressure heaters are hydrophobic successively, and the water in No. eight hydrophobic cooling sections of low-pressure heater is hydrophobic by drainage pump
To No. seven low-pressure heaters, pass through this connected mode, No. six low-pressure heaters, No. seven low-pressure heaters and No. eight low-pressure heaters
Circulation is formed, can be by the heat in water by this circulation because the water temperature in No. eight hydrophobic cooling sections of low-pressure heating is higher
Make full use of, it is to avoid the heat waste in hydrophobic process.
In one of the embodiments, the hydrophobic cooling section of No. nine low-pressure heaters and No. ten low-pressure heaters connect
Connect, the hydrophobic cooling section of described No. ten low-pressure heaters is connected with condenser.No. nine low-pressure heaters, No. ten low-pressure heaters according to
Secondary hydrophobic to condenser, water is delivered to No. ten heaters by condenser again by condensate pump, can utilize very well in water
Heat, while water is made full use of, reduces the consumption of water.
In one of the embodiments, the hydrophobic cooling section of a high-pressure heater and No. two high-pressure heaters connect
Connect, the hydrophobic cooling section of No. two high-pressure heaters is connected with No. three high-pressure heaters, No. three high-pressure heaters dredge
Water cooling section is connected with No. four high-pressure heaters, and the hydrophobic cooling section of No. four high-pressure heaters is connected with oxygen-eliminating device.No. one
High-pressure heater, No. two high-pressure heaters, No. three high-pressure heaters, No. four high-pressure heaters and oxygen-eliminating device are hydrophobic successively, finally
It is hydrophobic to oxygen-eliminating device, the water in oxygen-eliminating device is delivered to No. four high-pressure heaters by feed pump, forms circulation, passes through such a mode
Heat in water can be made full use of, while reducing the consumption of water.
In one of the embodiments, the high-pressure heater is single-row horizontal high pressure heater.Single-row horizontal high-pressure adds
Hot utensil has the convenient and hydrophobic capacious advantage of simple in construction, connection and reasonable arrangement, repair and maintenance, solves along putting standing heater
Heat-transfer pipe internal water accumulation can not discharge inconvenient with core pulling；The inversion hydrophobic volume of standing heater is smaller, and water level control is more difficult
Problem.
In one of the embodiments, No. nine low-pressure heaters and No. ten low-pressure heaters are arranged on the larynx of condenser
Portion.No. nine low-pressure heaters and No. ten low-pressure heaters are arranged on into condenser throat can reduce the resistance damage of extraction line
Lose, save space, reduce installation difficulty.
In one of the embodiments, a high-pressure heater respectively with the first externally arranged steam cooler and second
Externally arranged steam cooler is connected, and first externally arranged steam cooler, the second externally arranged steam cooler are used for and boiler
Economizer is connected, and a high-pressure heater is used to be connected with boiler economizer.Heat regenerative system disclosed by the invention is last
Two externally arranged steam coolers are set before two-stage high-pressure heater, by using No. three high-pressure heaters and No. four high pressures
The degree of superheat of heater improves final feed temperature, can improve overall cycle efficieny.
Deaerator bay, for arranging above-mentioned heat regenerative system, deaerator bay is from top to bottom disposed with except oxygen layer, interlayer, operating
Layer, intermediate layer and zero meter of layer, No. eight low-pressure heaters are arranged on intermediate layer, and No. seven low-pressure heaters are arranged on operating
Layer, No. six low-pressure heaters are arranged on interlayer or operating floor.
No. six low-pressure heaters, No. seven low-pressure heaters and No. eight low-pressure heaters are arranged on different marks by above-mentioned deaerator bay
Height, widens the vertical drop between low-pressure heater, and low plus hydrophobic is not smooth when can overcome underload completely using difference in height
The problem of, hydrophobic heat loss is reduced, coal consumption is reduced, increases generated energy.
In one of the embodiments, first externally arranged steam cooler and oxygen-eliminating device are arranged on except in oxygen layer, institute
State the second externally arranged steam cooler and a high-pressure heater is arranged on interlayer, No. four high-pressure heaters are arranged on operating
Layer, No. three high-pressure heaters are arranged on interlayer or operating floor, No. two high-pressure heaters, No. nine low-pressure heaters, ten
Number low-pressure heater is arranged on intermediate layer, and the drainage pump is arranged on zero meter of layer.By the way that each heater is separately positioned on into deoxygenation
Between each layer can be good at space using deaerator bay, it is to avoid excessive space is used during use；By the first external
Steam condenser, the second externally arranged steam cooler are separately positioned on above No. three high-pressure heaters and No. four high-pressure heaters,
It is easy to use；No. three high-pressure heaters can be arranged on interlayer or operating floor according to space size, meet different space requirements.
In one of the embodiments, the condenser lower end is arranged on zero meter of layer, and the throat of the condenser extends to
Intermediate layer, No. nine low-pressure heaters and No. ten low-pressure heaters are arranged on the throat of condenser.By the way that No. nine low pressure are added
The throat that hot device and No. ten low-pressure heaters are arranged on condenser can be good at utilization space, while condenser, No. nine low pressure
Heater and No. ten low-pressure heaters are fitted together, easy for installation.
Brief description of the drawings
Fig. 1 is heat regenerative system schematic diagram；
Fig. 2 is condenser sectional view；
Fig. 3 is the layout drawing of embodiment 1 of deaerator bay；
Fig. 4 is the layout drawing of embodiment 2 of deaerator bay.
Description of reference numerals is as follows：
1. a high-pressure heater, 2. No. two high-pressure heaters, 3. No. three high-pressure heaters, 4. No. four high-pressure heaters,
5. oxygen-eliminating device, 6. No. six low-pressure heaters, 7. No. seven low-pressure heaters, 8. No. eight low-pressure heaters, 9. No. nine low-pressure heaters,
10. No. ten low-pressure heaters, 11. condensers, 12. condensate pumps, 13. drainage pumps, 14. feed pumps, 15. first external steam
Cooler, 16. second externally arranged steam coolers；
101. except oxygen layer, 102. interlayers, 103. operating layers, 104. intermediate layers, 105. 0 meters of layers.
Embodiment
The present invention will be further described in detail with specific embodiment below in conjunction with the accompanying drawings.
A kind of heat regenerative system, including a high-pressure heater 1, two are disclosed in reference picture 1, one embodiment of the present of invention
It is number high-pressure heater 2, No. three high-pressure heaters 3, No. four high-pressure heaters 4, oxygen-eliminating device 5, No. six low-pressure heaters 6, No. seven low
Press heater 7, No. eight low-pressure heaters 8, No. nine low-pressure heaters 9, No. ten low-pressure heaters 10, condenser 11, condensate pumps
12nd, drainage pump 13, feed pump 14, the first externally arranged steam cooler 15 and the second externally arranged steam cooler 16；
A number high-pressure heater 1, No. two high-pressure heaters 2, No. three high-pressure heaters 3, No. four high-pressure heaters 4,
Oxygen-eliminating device 5, No. six low-pressure heaters 6, No. seven low-pressure heaters 7, No. eight low-pressure heaters 8, No. nine low-pressure heaters 9, No. ten
Pressure in low-pressure heater 10 reduces and is used to be connected with extract system successively；
The condenser 11, condensate pump 12, No. ten low-pressure heaters 10, No. nine low-pressure heaters 9, No. eight low-pressure heatings
Device 8, No. seven low-pressure heaters 7, No. six low-pressure heaters 6, oxygen-eliminating devices 5 are in turn connected to form condensate system；
The oxygen-eliminating device 5, feed pump 14, No. four high-pressure heaters 4, No. three high-pressure heaters 3, No. two high-pressure heaters 2
Be in turn connected to form water supply system with a high-pressure heater 1, the two ends of drainage pump 13 respectively with No. eight low-pressure heaters 8
Hydrophobic cooling section and No. seven low-pressure heaters 7 are connected；
First externally arranged steam cooler 15 is connected with No. three high-pressure heaters 3, and the second external steam is cold
But device 16 is connected with No. four high-pressure heaters 4.
Above-mentioned heat regenerative system, level Four high-pressure heater, one-level oxygen-eliminating device, using cooperatively for Pyatyi low-pressure heater add
The use of high-pressure heater and low-pressure heater, can reduce stage head, reduce because stage head not enough caused by it is hydrophobic
It is not smooth, while reducing because crisis situations are directly hydrophobic to condenser 11, effectively using hydrophobic heat, improve economy；Drainage pump
Hydrophobic cooling section and No. seven low-pressure heaters 7 of 13 two ends respectively with No. eight low-pressure heaters 8 are connected, and can add No. eight low pressure
Hydrophobic to No. seven low-pressure heaters 7 of water of the hydrophobic cooling section of hot device 8, can recycle the hydrophobic cooling of No. eight low-pressure heaters 8
Water in section, improves the service efficiency of heat；While No. three high-pressure heaters 3 and No. four high-pressure heaters 4 are in use
Steam superheat is big, by setting the first externally arranged steam cooler 15 and the second externally arranged steam cooler 16 to make full use of steaming
The vapour degree of superheat, can reduce irreversible heat exchange loss, while feed temperature can be improved to a certain degree under various load conditions,
Reduce heat consumption.
Reference picture 1, alternatively, the hydrophobic cooling section of No. six low-pressure heaters 6 are connected with No. seven low-pressure heaters 7,
The hydrophobic cooling section of No. seven low-pressure heaters 7 is connected with No. eight low-pressure heaters 8.No. six low-pressure heaters 6, No. seven low pressure
Heater 7, No. eight low-pressure heaters 8 are hydrophobic successively, and the water in No. eight hydrophobic cooling sections of low-pressure heater 8 passes through drainage pump 13
Hydrophobic to No. seven low-pressure heaters 7, by this connected mode, No. six low-pressure heaters 6, No. seven low-pressure heaters 7 and No. eight low
The formation circulation of heater 8 is pressed, can by this circulation because the water temperature in the hydrophobic cooling section of No. eight low-pressure heaters 8 is higher
So that the heat in water to be made full use of, it is to avoid the heat waste in hydrophobic process.
Reference picture 1, alternatively, the hydrophobic cooling section of No. nine low-pressure heaters 9 are connected with No. ten low-pressure heaters 10,
The hydrophobic cooling section of described No. ten low-pressure heaters 10 is connected with condenser 11.No. nine low-pressure heaters 9, No. ten low-pressure heaters
10 is hydrophobic to condenser 11 successively, and water is delivered to No. ten heaters by condenser 11 again by condensate pump 12, can be fine
Using the heat in water, while water is made full use of, the consumption of water is reduced.
Reference picture 1, alternatively, the hydrophobic cooling section of a high-pressure heater 1 are connected with No. two high-pressure heaters 2,
The hydrophobic cooling section of No. two high-pressure heaters 2 is connected with No. three high-pressure heaters 3, No. three high-pressure heaters 3 dredge
Water cooling section is connected with No. four high-pressure heaters 4, and the hydrophobic cooling section of No. four high-pressure heaters 4 is connected with oxygen-eliminating device 5.One
Number high-pressure heater 1, No. two high-pressure heaters 2, No. three high-pressure heaters 3, No. four high-pressure heaters 4 and oxygen-eliminating device 5 are dredged successively
Water, final hydrophobic to oxygen-eliminating device 5, the water in oxygen-eliminating device 5 is delivered to No. four high-pressure heaters 4 by feed pump 14, forms circulation,
The heat in water can be made full use of by such a mode, while reducing the consumption of water.
Reference picture 1, alternatively, the high-pressure heater are single-row horizontal high pressure heater.Single-row horizontal high pressure heater
With simple in construction, connection and reasonable arrangement, the convenient and hydrophobic capacious advantage of repair and maintenance, solve suitable standing heater of putting and conduct heat
Pipe internal water accumulation can not discharge inconvenient with core pulling；It is inverted the hydrophobic volume of standing heater smaller, the problem of water level control is more difficult.
Reference picture 2, alternatively, No. nine low-pressure heaters 9 and No. ten low-pressure heaters 10 are arranged on condenser 11
Throat.No. nine low-pressure heaters 9 and No. ten low-pressure heaters 10 are arranged on into the throat of condenser 11 can reduce extraction line
Drag losses, saves space, reduces installation difficulty.
Reference picture 1, alternatively, a high-pressure heater 1 are external with the first externally arranged steam cooler 15 and second respectively
Formula steam condenser 16 is connected, and first externally arranged steam cooler 15, the second externally arranged steam cooler 16 are used for and pot
Stove economizer is connected, and a high-pressure heater 1 is used to be connected with boiler economizer.Heat regenerative system disclosed by the invention is most
Two externally arranged steam coolers are set before two-stage high-pressure heater afterwards, by using No. three high-pressure heaters 3 and No. four
The degree of superheat of high-pressure heater 4 improves final feed temperature, can improve overall cycle efficieny.
A kind of deaerator bay is disclosed in reference picture 3 and Fig. 4, one embodiment of the present of invention, for arranging above-mentioned backheat system
System, deaerator bay is from top to bottom disposed with except oxygen layer 101, interlayer 102, operating layer 103, intermediate layer 104 and zero meter of layer 105,
No. eight low-pressure heaters 8 are arranged on intermediate layer 104, and No. seven low-pressure heaters 7 are arranged on operating floor 103, described six
Number low-pressure heater 6 is arranged on interlayer 102 or operating floor 103.
No. six low-pressure heaters 6, No. seven low-pressure heaters 7 and No. eight low-pressure heaters 8 are arranged on not by above-mentioned deaerator bay
Same absolute altitude, widens the vertical drop between low-pressure heater, low plus hydrophobic when can overcome underload completely using difference in height
Not smooth the problem of, hydrophobic heat loss is reduced, reduce coal consumption, increase generated energy.
Reference picture 3 and Fig. 4, alternatively, the first externally arranged steam cooler 15 and oxygen-eliminating device 5 are arranged on except in oxygen layer 101,
Second externally arranged steam cooler 16 and a high-pressure heater 1 are arranged on interlayer 102, No. four high-pressure heaters 4
Operating layer 103 is arranged on, No. three high-pressure heaters 3 are arranged on interlayer 102 or operating floor 103, No. two hyperbaric heatings
Device 2, No. nine low-pressure heaters 9, No. ten low-pressure heaters 10 are arranged on intermediate layer 104, and the drainage pump 13 is arranged on zero meter of layer
105.It can be good at utilizing the space of deaerator bay by the way that each heater to be separately positioned on to each layer of deaerator bay, it is to avoid used
Excessive space is used in journey；First externally arranged steam cooler 15, the second externally arranged steam cooler 16 are separately positioned on
No. three high-pressure heaters 3 and No. four tops of high-pressure heater 4, are easy to use；No. three high-pressure heaters 3 can be according to space size
Interlayer 102 or operating layer 103 are arranged on, different space requirements are met.
Reference picture 2, alternatively, the lower end of condenser 11 are arranged on zero meter of layer 105, throat's extension of the condenser 11
To intermediate layer 104, No. nine low-pressure heaters 9 and No. ten low-pressure heaters 10 are arranged on the throat of condenser 11.By inciting somebody to action
The throat that No. nine low-pressure heaters 9 and No. ten low-pressure heaters 10 are arranged on condenser 11 can be good at utilization space, simultaneously
Condenser 11, No. nine low-pressure heaters 9 and No. ten low-pressure heaters 10 are fitted together, easy for installation.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope of this specification record is all considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and it describes more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of heat regenerative system, including high-pressure heater, No. two high-pressure heaters, No. three high-pressure heaters, No. four high pressures
Heater, oxygen-eliminating device, No. six low-pressure heaters, No. seven low-pressure heaters, No. eight low-pressure heaters, No. nine low-pressure heaters, ten
Number low-pressure heater, condenser, condensate pump, drainage pump, feed pump, the first externally arranged steam cooler and the second external steam
Vapour cooler；
A number high-pressure heater, No. two high-pressure heaters, No. three high-pressure heaters, No. four high-pressure heaters, oxygen-eliminating device, six
Number low-pressure heater, No. seven low-pressure heaters, No. eight low-pressure heaters, No. nine low-pressure heaters, in No. ten low-pressure heaters
Pressure reduces and is used to be connected with extract system successively；
The condenser, condensate pump, No. ten low-pressure heaters, No. nine low-pressure heaters, No. eight low-pressure heaters, No. seven low pressure
Heater, No. six low-pressure heaters, oxygen-eliminating devices are in turn connected to form condensate system；
The oxygen-eliminating device, feed pump, No. four high-pressure heaters, No. three high-pressure heaters, No. two high-pressure heaters and a high pressure
Heater is in turn connected to form water supply system, the hydrophobic cooling section and seven of the drainage pump two ends respectively with No. eight low-pressure heaters
The connection of number low-pressure heater；
First externally arranged steam cooler is connected with No. three high-pressure heaters, second externally arranged steam cooler and four
The connection of number high-pressure heater.
2. heat regenerative system according to claim 1, it is characterised in that the hydrophobic cooling section of No. six low-pressure heaters with
No. seven low-pressure heater connections, the hydrophobic cooling section of No. seven low-pressure heaters is connected with No. eight low-pressure heaters.
3. heat regenerative system according to claim 2, it is characterised in that the hydrophobic cooling section of No. nine low-pressure heaters with
No. ten low-pressure heater connections, the hydrophobic cooling section of described No. ten low-pressure heaters is connected with condenser.
4. heat regenerative system according to claim 1, it is characterised in that the hydrophobic cooling section of a high-pressure heater with
No. two high-pressure heater connections, the hydrophobic cooling section of No. two high-pressure heaters is connected with No. three high-pressure heaters, and described three
The hydrophobic cooling section of number high-pressure heater is connected with No. four high-pressure heaters, the hydrophobic cooling section of No. four high-pressure heaters with
Oxygen-eliminating device is connected.
5. heat regenerative system according to claim 1, it is characterised in that the high-pressure heater heats for single-row horizontal high-pressure
Device.
6. heat regenerative system according to claim 1, it is characterised in that No. nine low-pressure heaters and No. ten low-pressure heatings
Device is arranged on the throat of condenser.
7. heat regenerative system according to claim 1 a, it is characterised in that high-pressure heater is external with first respectively
Formula steam condenser and the connection of the second externally arranged steam cooler, first externally arranged steam cooler, the second external steam
Vapour cooler is used to be connected with boiler economizer, and a high-pressure heater is used to be connected with boiler economizer.
8. deaerator bay, it is characterised in that for arranging the heat regenerative system as described in claim 1-7 any one, deaerator bay by
Up to it is disposed with down except oxygen layer, interlayer, operating layer, intermediate layer and zero meter of layer, during No. eight low-pressure heaters are arranged on
Interbed, No. seven low-pressure heaters are arranged on operating floor, and No. six low-pressure heaters are arranged on interlayer or operating floor.
9. deaerator bay according to claim 8, it is characterised in that first externally arranged steam cooler and oxygen-eliminating device are set
Put in except oxygen layer, second externally arranged steam cooler and a high-pressure heater are arranged on interlayer, No. four high pressures
Heater is arranged on operating layer, and No. three high-pressure heaters are arranged on interlayer or operating floor, No. two high-pressure heaters, nine
Number low-pressure heater, No. ten low-pressure heaters are arranged on intermediate layer, and the drainage pump is arranged on zero meter of layer.
10. deaerator bay according to claim 8, it is characterised in that the condenser lower end is arranged on zero meter of layer, described solidifying
The throat of vapour device extends to intermediate layer, and No. nine low-pressure heaters and No. ten low-pressure heaters are arranged on the throat of condenser.
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| CN201710262172.XA CN107062192B (en) | 2017-04-20 | 2017-04-20 | Deaerator bay |
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| CN201710262172.XA CN107062192B (en) | 2017-04-20 | 2017-04-20 | Deaerator bay |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167806A (en) * | 2017-12-26 | 2018-06-15 | 中国能源建设集团江苏省电力设计院有限公司 | Million unit high-pressure heater system structure of double reheat and its application method |
| CN108533012A (en) * | 2018-05-24 | 2018-09-14 | 中国电力工程顾问集团西北电力设计院有限公司 | Thermal power plant 660MW grades of unit Turbo-generator Set lateral arrangement structure |
| CN112594919A (en) * | 2020-12-16 | 2021-04-02 | 安庆船用电器有限责任公司 | Vertical explosion-proof type marine heater convenient to installation |
| CN113107621A (en) * | 2021-05-28 | 2021-07-13 | 西安热工研究院有限公司 | 650 ℃ high-efficiency supercritical (super-supercritical) coal-fired power generation system |
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| CN112594919A (en) * | 2020-12-16 | 2021-04-02 | 安庆船用电器有限责任公司 | Vertical explosion-proof type marine heater convenient to installation |
| CN113107621A (en) * | 2021-05-28 | 2021-07-13 | 西安热工研究院有限公司 | 650 ℃ high-efficiency supercritical (super-supercritical) coal-fired power generation system |
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